Abstract:The Bowl buckle high support system is widely applied to the actual construction with its convenient construction and high bearing capacity.At present, because of the lack of erection norms and the personnel experience in construction of high support system, so the erection of the structural measures are not reasonable, the system deformation under the action of load is too large which would impact the construction quality.Using ANSYS finite element software simulate the effects of the high support system deforation which arranged in different direction scissors and fixed to the surrounding structure.The vertical and horizontal scissors are arranged to system of vertical and lateral displacement with high support effective constraint.The deformation of the high support system which fixed to the surrounding structure reduced, displacement boundary portion of the vertical rod decreased more obviously.

Abstract:Geothermal heat pumps have been widely used in construction projects. However, the efficiency of geothermal heat pump may be easily lowered due to the imbalance between heating and cooling loads resulting from the differences of seasons, and especially building functions. Basing on a project in LEU, this article firstly takes discussion on how the solar-geothermal water heating system complex may be applied in Chongqing. Then, the article carries out calculations and analysis to evaluate the balance of the complex system. It mainly aims at providing useful advices for the application of solar-geothermal water heating system complex in Chongqing.

Abstract:Through GIS aided census of dilapidated, improve planning, project supervision and propaganda work, points out the advantages of GIS and the application prospect in distribution for improving dilapidated houses management.

Abstract:Taking Zhuziba material-yard slope as an example,it use FLAC 3D to dynamically simulate the excavation process. Numerical calculation is carried out and strength reduction method is used to identify the plastic zone and the potential sliding surface. Sensitivity analysis is carried out to determine the influence on the the values of c and φ of the monitoring points on displacement. And combined with the measured displacements of the point, back analysis is carried out to determine the mechanical parameter of the potential slip surface. Based on analyzing the effect of anchorage on the anchoring method, 2 excavation - supporting schemes are designed. The results show that it can be accepted to identify the potential sliding surface by using strength reduction method, because the result is similar to what is drawn by using stereographic projection. The displacement of monitor point is linear to φ. The influence of φ(c) is similar on displacement at same c(φ).It also can be accepted to determine the best interval of anchor and length of anchoring section of double anchor by using numerical calculation to make the most considerable use of building materials.

Abstract:One Super Highrise Building is adopted to a new structural pattern of a reinforced concrete core tube enclosed by an outer lattice tube made of obliquely crossing concrete filled rectangular steel tubular columns.In order to understand the stress state of plannar representative connections used in obliquely crossing lattice and verify the rationality of the details,two 1:3 scale models were respectively applied symmetrical and asymmetrical axial force,and experiment processes were numerical simulated by ABAQUS.The results indicate that the connections are validated to meet the design requirement of the building,with sufficient loading capacity.

Abstract:The Cuplock Template supports system joint initial rigidity and bowl buckle tightening torque was closely linked, with MATLAB applications for the two order and three order numerical fitting between them, found that three order fitting accuracy was higher than two order fitting results. Using ANSYS finite element software to establish the corresponding with the entity model, the changes in simulated nodes hinged, rigid and different initial stiffness condition for supporting system, and the simulation results were compared with the actual bearing capacity of the frame body stability. Find node is hinged and rigid connection simulation results state and actual frame difference. When the simulation results between node tightening torque of the 35N.m~50N.m and the actual time the frame carrying capacity is close, the node for the semi-rigid connection state. In order to show that the semi-rigid joint model can simulate accurately with the actual capacity of the Cuplock Template supports system.

Abstract:This paper analyses the generating mechanism of radiation noise which produced by bridge structures and vibro-acoustic characteristics, and reviews the current situation of the researches on the relevant standards of structure noise at house and abroad. The author summarizes the method of measurement and calculation about structural noise at house and abroad, further notes their limits. This paper explores the impact of such factors as rain speed and other different fluids on structure noise. The noise characteristics of structures like cavity structure and thin-slab structure are also discussed. Strategies for reduce the bridge structure noise are summed up by reducing the vibration of track structure, altering the structure of boundary conditions, increasing the stiffness and changing the bridge cross section. Finally it comes to a conclusion that a combination of these strategies is the root way to settle the question of the bridge structure noise.

Abstract:Guiyang Huaxi district landscape bridge is seven miles the beach driving bearing type reinforced concrete box arch bridge, the design process of conventional arch bridge solutions with less thrust arch bridge to carry on the comparison, the combination of special terrain, geological conditions, finally chose the foundation excavation is small, economical, reasonable structure, less thrust of arch bridge using edge inclined rod and bearing platform consolidation, forming the free cantilever end method better solve the horizontal thrust at arch feet larger, by establishing the structure finite element model, analyzes the static force performance, the results show that the thrust of arch stress performance good, less economically feasible, beautiful appearance, and the scenic spot environment more harmonious.

Abstract:Through methods of indoor adsorption retardation experiments, established mathematical model of heavy metal pollutants transport, effect of adsorption retardation have been study on the grouting concretion body, so as to reasonable determine the thickness of the wall and design use fixed number of year. The isolation wall made in the clay base grouting consolidation system, has good adsorption retardation, block rate reach upper 98% to NH4-N and phosphorus, block rate reach upper 86.09% to CODCr, BOD5, block rate reach upper 98% to Hg, Pb and other heavy metal ions. Through the infiltration sedimentation and adsorption fixation of clay base slurry material, the retardation capability of it is improved for pollutants of landfill site leachate. Adsorption retardation effect of the isolation wall made in the clay base impervious grouting has timeliness to leachate pollutants for landfill site,to guarantee a certain wall thickness (generally B≥60 cm) can ensures blocking effect to it.

Abstract:The understanding of tensile creep behavior is extremely important in accurate stress analysis and crack prediction. A set of concrete tensile creep testing apparatus was constructed. The characteristics of tensile creep under different loading ages(1,3 and 7 days),different water-binder ratio(0.29,0.33 and 0.37) and different fly ash proportion (0%, 20% and 40%) were discussed. The results show that tensile creep of HPC decreases as the loading age and water-binder ratio increases. The creep-resistance of HPC enhances with the increase of fly ash proportion. Tensile creep counteracts free shrinkage by 42%～62%,decreases the possibility of cracking of HPC at early ages.

Abstract:This paper investigate the plant water of 52 different conventional processed water plant in the eastern and central regions, and analyse the characteristics of water plants in different areas; survey the influence of the pond of waterworks flocculation, sedimentation tanks on the water consumption rate and the solids containing in the sludge; besides, research the influence of the type of waterworks filter pool and backwash conditions on the consumption rate of water and backwash effect; also, it analyse the rate of water plants which have had this water reuse process at this time.

Abstract:Based on the determined stress-strain relationship of steel and concrete after fire, a temperature field and mechanical model of bar-reinforced concrete-filled square steel tubular columns after fire was set up with using ABAQUS, and the model has been validated by testing results. Then this paper analyzed the side of section, bar ratio, fire duration time, steel ratio and material strength parameters on the bearing capacity of bar-reinforced concrete-filled square steel tubular columns after fire. It is found that fire duration time and side of section is the dominant factor. Lastly this paper puts forward a theoretical formula of bearing capacity of bar-reinforced concrete-filled square steel tubular columns after fire, for the post-disaster restoration and provides references for the reinforcement.

Abstract:Post-tensioned prestressed concrete beam in tensioning of prestressed reinforcement is based on the symmetry principle to determine the tensioning sequence.Simulation of the tensioning process of a 54m span post-tension concrect beam of a Prestressed Concrete Frame Structure in Fuxin was conducted with the finite element analysis program ADINA. With two different tensioning schemes,the influence of the tensioning sequence on deformation is calculated and then compared with the tensioning one by one in order the tensioning sequence is optimized.

Abstract:In view of the different of the underground heat storage water tank of solar position arrangement, make use of the Fluent software program numerical simulation and calculation, it is concluded that under different conditions the heat storage water tank temperature field distribution of the soil around. At the same time, establishing physical model and mathematical model of underground heat storage water tank and combined with practical engineering, verify the underground storage tank for heat and energy storage, to obtain the relationship between the tank roof loss and total heat release. Calculation results show that under the same conditions, outdoor storage tank at the top of the heat dissipating capacity to reduce, so the method can be used to offset at the top of the energy required collector to reduce, so the method can be used to offset this part of the energy required collector area of the cut, improve thermal efficiency and reduce the user store hot water tank of the store.

Abstract:In recent years, economic has developed with the high-speed in China, which leads advance of urbanization rapidly. Development of economic expands the gap between the rich and the poor, leads to house prices rise rapidly. The housing problem is tricky for low-income people. Resolving the housing problem has become one of the hot topics in China. It is so difficult to buy a house with high rent and high price of house, and this is the common difficulties for urban low-income people. The current public housing construction has been launched in most cities, but the public housing system in Shanxi province, construction, management and future problems that exist in the operation process is worth thinking about. For public housing development status quo carries on the analysis of current, the study of public housing security system is of help, through the analysis of the problem can solve the problems existing in the public housing, to consummates our country housing guarantee system.

Abstract:AH-70 road asphalt as the basis, Buton rock asphalt mixture pavement performance was studied by using six different Buton rock asphalt adding quality and six different AC20 aggregate gradation. The results show that Buton rock asphalt raw materials including the rock mineral significantly affects aggregate gradation and the pavement performance; reasonable choice OAC can significantly improve the road performance, and the road performance in the condition of 0.7%~1.3% optimum OAC is close to that of the SBS modified asphalt mixture, but Buton rock asphalt improving the water stability is limited; Buton rock asphalt optimum dosage is 23.7%, and Buton rock asphalt OAC and OAC of Buton rock asphalt raw material is almost the same.

Abstract:Particulate matter has become one of the major pollutants causing environmental pollution and affects human health. Motor vehicle particulate matter emissions accounted for more than 60% of the pollutants. At present, research on motor vehicle particulate matter emissions has inadequate systematic control strategies. This paper first analyzes the draw of the motor vehicle particulate matter formation mechanism and influencing factors. According to the statistics of the China Motor Vehicle Pollution Prevention Annual Report, mathematical models of the number of cars, the number of low speed motor vehicles and the number of motor vehicles with particulate matter emissions are presented using MATLAB, and the total amount of motor vehicle particulate emissions in the next five years is predicted. The results show that the motor vehicle particulate emissions increases every year and reached 1.032 2 million tons in 2015. Low-speed vehicle number PM emissions will gradually be reduced slowly, mainly influenced by national policies. Finally, according to the analysis and forecasting results, an effective motor vehicle particulate matter emission control strategy is put forward.

Abstract:Partial least squares (PLS) algorithm has been widely used in face recognition recent years, but the improved algorithm of PLS did not consider both the constraint of nonnegative and sparsity to improve the recognition accuracy and robustness. To take over these disadvantages, the paper proposes a novel approach to extract the facial features called Two-dimension Nonnegative Sparse Partial Least Squares (2DNSPLS). The main idea of the approach is grabbing the local features via adding the constraint of nonnegative and sparse to 2DPLS, which make the approach gain not only the advantages of 2DPLS, incorporating both inherent structure and category information of images, but also the local features, having nonnegative interpretability and sparsity. For evaluating the approach’s performance, a series of experiments are conducted on two famous face image databases Yale and PIE face databases, which demonstrate that the proposed approach outperforms the state-of-art algorithms and has good robustness to occlusion.

Abstract:At first, this paper introduces the EFB. Then it introduces the EFB manufacturers and three airlines’ applications of EFB. To make the content simple and clear, the paper presents a contrast table on EFB’s hardware and software. According to the comparative of analysis, the Analytic Hierarchy Process and Excel’s calculation, the paper gets weight coefficient as a theory of EFB design.

Abstract:Ink analysis is an important part of material evidence analysis in forensic science. It not only needs to acquire data by precise chemical analysis instruments, but also needs to parse data by the chemometrics methods such as principal component analysis (PCA), cluster analysis (CA), artificial neural networks (ANN) and pattern recognition and so on. The main applications of chemometrics in ink synthesis, including experimental design and optimization, signal processing, multivariate calibration, pattern recognition, database technology and expert system, have been reviewed. Furthermore, future trends of ink analysis are prospected.

Abstract:Based on the crash in the airport and airline-related units and resident hospital emergency first aid and some of the wounded victims of the clinical data were more complete preliminary analysis, and control systems for transportation such as airlines, airport command center, emergency hospital medical staff to discuss issues such as clear division of labor. It also discussed the issues such as division of work between airlines operation control system, airport control center and emergency medical assitants. Based on these analysis, it concluded that the rapid and efficient emergency rescue is extremely important, as a result, the follow-up treatment is possible in time and it improves the success rate of treatment for multiple trauma.

Abstract:The technology of incinerator fly ash as the main material and the core carbonaceous reducing agent, and the necessary absorption of chlorine and catalyst made of composite pellets, Into the garbage incineration furnace temperature reduction decomposition of dioxin, heavy metal forming glassy slag. The fly ash harmless treatment, fly ash in the incineration plant in their complete closed circulation waste disposal to achieve, Provides the optimum technical route for the treatment of MSW fly ash.

Abstract:combined with the current O&M model of domestic and overseas waste-to-energy plant, the essay analyses the strengths of specialized operation for waste-to-energy plant, put forwards two kinds of practical operation patterns, elaborates the aspects that need attention during specialized operation commissioning for waste-to-energy plant. This will push forward the positive development of operation commissioning of Chinese waste-to-energy plant.

Abstract:The traditional biogas reactor made of glass fiber-reinforced plastic decreases the performance of biogas fermentation under low temperature condition because it can’t remain the inner temperature. Therefore, to learn the characteristics of reactor wall will help to give guidance to the design of novel biodigester with thermal insulation and thus increase the biogas productivity by utilizing the metabolic heat. In this work, the mechanical and thermal performances of biodigester wall made of organic glass fiber-reinforced plastic were investigated. The results indicated that this traditional biodigester possessed high mechanical intensity and low thermal insulation. And it was anti-acids rather than anti-alkali. Furthermore, the experiments reveal that the compositions and structure of this traditional biodigester should be further modified to enhance the thermal insulation to remain the energy for biogas fermentation by methanogen.

Abstract:Study the bulging phenomena in compression test of thermal simulation machine Thermecmastor-Z by using temperature compensation and lubricating medium at both side of specimen. Favorable compressed specime n and precise results were obtained.

Abstract:Investment of power transmission and transformation project is of profits, as well as a kind of public service. Good post-evaluation of power transmission and transformation project can provide references for subsequent power grid construction, as well as improve enterprise benefits and social benefits. Post-evaluation of power transmission and transformation project is of characteristics of comprehensiveness, multi-layer and fuzziness. Based on its characteristics, this paper establishes the index system of post-evaluation. In evaluation methods，fuzzy hierarchy comprehensive evaluation is selected to build fuzzy comprehensive evaluation model of power transmission and transformation project, which is analyzed specifically by applying one case study. The results show that this model can effectively evaluate the economic benefits of the power transmission and transformation project．

Abstract:The bench test of diesel engine is conducted fueled with biodiesel, diesel and blending fuel, the changes of cylinder pressure with crank angle is also measured, combined with the measurement results of carbonyl emissions, the theoretical relationship between combustion process and carbonyl formation is analyzed. The results show that, combustion intermediates such as C7, C5, CO and C2H2 are produced in the fuel oxidation process during the premixed combustion phase. The diffusion combustion period extend with the increase of load, and it is the main stage of re-oxidation and decomposition for the intermediate products, the cylinder temperature and pressure increase with the increase of load, while the ignition delay period is shortened, the probability of oxidation and conversion for carbonyl pollutants improve because of the extended residence time in the high-temperature and high pressure region, the high exhaust temperature in high load is conducive to the re-oxidation of carbonyl emissions.

Abstract:In order to solve the problem that requires some factors by manual in the traditional Ncut algorithm, limit the generality of the algorithm, an adaptive image segmentation method is proposed by improving the traditional Ncut algorithm. First, instead of the two control parameters on the calculation of weight matrix that influence the segmentation results in the traditional Ncut algorithm by groups of potential theory; then in order to reduce the sensitive to the number of the cluster and the center of the cluster in the K-means algorithm, calculate on the eigenvector of the Ncut algorithm by the minimum spanning tree, to get the final number of cluster and the center, and then uses the K-means clustering algorithm to get the final segmentation result. The experimental results show that the proposed method not only improves the versatility of the algorithm, and the segmentation is good.

Abstract:Phase change material modified asphalt is prepared by using PEG/activated carbon composite solid-solid phase change materials for asphalt modification. Phase change materials modified asphalt with different ratios are aged and treaded alterably at high or low temperature, and then its appearance is observed. The properties of the modified asphalt, such as ductility, softening point, etc., are tested by using electronic tensile testing machine and thermal mechanical analyzer. Experiments show that when the content of PEG/activated carbon phase change material is 20%, the ductility of modified asphalt is the best; when the content of phase change material is 15% to 20%, the softening point of modified asphalt is obviously improved.

Abstract:In order to study the mechanical behavior of the Y-shaped joints in oblique crossing lattice, two 1:3 scale models of the Y-shaped joints which are respectively applied symmetrical and asymmetrical axial force in experiment processes are tested, and the corresponding numerical simulations are carried out by using ABAQUS software. The stress state and deformation behavior of concrete-filled square tube column and steel beam rigid joint with internal diaphragms for high-rise structure are analyzed. The results of the test and the numerical simulation consistently show that in the loading process, the deflection of the joint core is insignificant and a good connection, the joint core is able to deliver the internal force effectively before the damage of the oblique column and meet the requirement of “strong joint and weak column”.

Abstract:Based on the elastic theory, an analysis can be made on stress and plastic deformation under tunnel excavation and shotcrete support.FLAC 3D can be used to simulate the mechanical behavior of excavation and support, getting the deformation of surrounding rock stress and plastic without support and shotcrete. The results show that, the prestress applied on the anchor equals to the supporting force when the tunnel plastic zone disappears. This support improves the self bearing capacity of surrounding rock, effectively suppresses the expansion of the plastic zone after the tunnel excavation, and prevents further damage to the tunnel surrounding rock.

Abstract:Taking an example from Zhong-Wu Lang Ping Valley Gas Pipeline Project, we combined the engineering geological of the site area, and learn from experience in similar projects. Then, on this basis, we carried out the design of the immersed work, introduced the applications of the immersed controlled excavation work. The results show that the immersed controlled excavation work achieved the expected results. Practice shows that the controlled excavation construction not only prevent gravity retaining wall concrete construction disturbance and construction personnel devastation, but also improved the depth of pipeline settlement (original design maximum settlement increased to -1.5m from -1.0m.). The program for Zhong-Wu Lang Ping Valley Gas Pipeline engineering success, and can providing guidance for other similar pipeline project.

Abstract:The bank slope failure is closely related to the rise and fall of river level generally. In order to analysis the influence of the rise and fall of river level on Jin’an River bank slope stability in Fuzhou, the saturated-unsaturated seepage of bank slope with revetment was modelled based on the engineering geological condition of some bank of Jin’an River, and the effect of rise and fall of river induced by the DRWWOS(Drawing River Water to Wash Out Sewage) project on bank slope stability was studied. The results show the silt lying on the slope toe impedes pore water change, manifesting as in its sphere of influence river water is hard to flow into the bank when river rises, and the pore water pressure can not dissipate in time when drawdown. The faster the river rises, the more stable the bank slope becomes. On the contrary, the larger river level falling rate is more likely to leads to bank slope failure. Due to the poor bank drainage performance, the frequent rise and fall of river level results in pore water pressure increasing further, then impairing the bank slope stability. During DRWWOS project, the river level falling rate control and pore water pressure dissipation must be paid enough attention to. Also, replacing silt lying on the slope toe by good permeable material is a good choice to reinforce the bank slope.

Abstract:Soil cave, karst collapse doline, occur more and more frequently, a serious threat to people's life and property safety. This paper starts from limestone areas of karst collapse causes-groundwater level elevation angle, analysis of its causes and the destruction of the ecological environment of karst collapse, and based on the principle of karst collapse such incentives put forward the corresponding proposal.

Abstract:To solve the problem of comfortable level on vehicle vibration in railway station, this article summarizes current building comfortable level analysis and evaluation standards and methods, and the comfortable level of railway station is discussed. According to the Standard of City Region Environmental Vibration, some bridge-station combined structure is taken as an example，the standard scale of acceleration vibration is used to evaluate the comfortable level of the railway station. The methods and evaluation process provided in this article can serve as an reference.

Abstract:The research on architectures with ethnic characteristics increase both domestic and abroad, and one of the important objectives of which is to find whether there is good adaptability between the space and forms of architecture and area climatic conditions, In this paper, through the field measurement of parameters and meteorological data of stilt style architecture of the minorities in Guilin of Guangxi province and ordinary residential building, and using Design-Builder simulation software to model, conducting the CFD simulation, thermal environment inside the building and indoor temperatures of the whole year were obtained, then we calculated that thermal comfort index inside the building for the full year. Comparing the simulation results, we concluded that thermal environment inside the building and thermal comfort index of stilt style architecture significantly outperformed the ordinary ones. Stilt style architectures are more suitable to the climates in Guangxi province. At present, the research of stilt style architecture is still at an early age, and this paper can provide basis for the research on the energy saving technology of stilt style architecture.

Abstract:This article mainly introduced the combination of gray linear regression model of the gray optimization and prediction, and applies it to the monitoring measurement of tunnel and underground engineering. Combined with engineering example, compare the grey optimization of the GM (2, 1) model, Verhust model and the metabolism model with the gray linear regression model, the metabolism model of gray linear regression model has more general applicability and accurate simulation prediction precision when predict rock deformation.

Abstract:Ceramsite and natural zeolite were used as mixed substrates in subsurface horizontal constructed wetland which is planted with Yellow flag to investigate the treatment efficiency of real residential grey water, Inflow rate was 50l/d, HRT was 2d. The wetland reduced COD, NH3-N, TN, TP and turbidity from 164mg/l,4.3mg/l,5.2mg/l,0.44mg/l,82.4NTU to 70 mg/l, 1.07 mg/l, 2.07 mg/l, 0.33 mg/l, 7.27NTU, removal efficiency was respectively 57.32%,75.19%,60.26%,24.24%,91.18%,and have a good performance in COD,NH3-N,TN, turbidity treatment. Used synthetic grey water to study different HRT effect of wetland. Increasing HRT could be increase the wetland ability of COD, NH3-N removal. When the HRT was 3d, the wetland had the best decontamination effect. The removal efficiency of COD,NH3-N,TN,TP,turbidity was respectively 68.46%,81.75%,66.67%,34%,86.91%.

Abstract:Cityscape design is to shape the landscape of a city as the goal. In essence, the cityscape is human perception of the city, urban landscape design can be understood as the restructuring of urban imagery and visual representation of the process. Through the analysis and research, the designer for the landscape perception of the city, and then presented in the design results, and is perceived by others. In this process, especially important is the designer's perception of the city. From the perspectives of visitors or residents, the designer's perception of the city is very different. Tourists tend to be structured and integrity to cognitive the landscape of the city, and residents focus on the micro perspectives, with more details and life. This article attempts through the discussion of the different perspective, explore the urban landscape design optimal method.

Abstract:Gothic architecture began from mid-11th century in UK, it shined in this arena more than eight centuries, but also affected the architectural style from the whole of Europe to the world. In this paper, a comparative analysis on UK and French Gothic architectural style, With this analysis we will understand the development and causes of Gothic architecture in different historical context.

Abstract:The flexural performances of a rubber concrete beam and a ordinary concrete beam are studied under concentrated load through the experiment. The influences of the content of the rubber powder in the rubber concrete beam on the bearing capacity and the crack width of beams are analyzed. The experimental results show that the crack distributions on two beam surfaces possess the characteristics of self-similar in statistical sense. The maximum crack width of the rubber concrete beam is less than that of the ordinary concrete beam under the same load level. The performance of anti-crack of the concrete beam is improved by adding the crumb rubber. Using the fractal theory, the fractal dimension values of the surface crack of the beams under different load grades are calculated and the relationship between the fractal dimension and the maximum crack width of the surface cracks is established.

Abstract:In this paper, it was carried out for reduction decomposition of phosphogypsum to calcium sulfide under N2 atmosphere. The size of phosphogypsum was measured by Nano-ZS90 Zetasizer. Scanning electron microscopy and XRD-ray diffraction were used to analyze the raw-material and decomposition solid production. These conditions were also studied on a carbon to CaSO4 molar ratio, reaction temperature, reaction time, and reaction atmosphere in the N2 atmosphere. The results showed that the optimal conditions for production of CaS are found to be a carbon to CaSO4 molar ratio of 2.4 to 1, a temperature of 900～1000 ℃,a reaction time of 2 h, and reductive atmosphere. Under these conditions the conversion rate of CaS from phosphogypsum amount to no less than 97.60%.

Abstract:The Kalman filtering algorithm and commonly used maneuvering target tracking models in the target tracking are firstly studied in this paper, tracking performances of all models based on the Kalman filtering algorithm are simulated and analyzed. Then, multiple model target tracking algorithm is analyzed and studied, which uses multiple motion models to match different target motion models and exists interacting between all models. In this paper，the target tracking of shipboard radar is simulated with MATLAB. It shows the feasibility of the interacting multiple model algorithm composed of a CV model and a CA model. The simulation results indicate，this algorithm obtains a better performance in tracking high speed and high maneuvering targets and a better balance between the performance and computational complexity，as well as very practicability, which is suitable for the tracking target of shipboard radar tracking target.

Abstract:Because of high bearing capacity and small settlement of CFG pile, CFG pile have been used widely in foundation treatment of engineering construction, but it has applicant in high-speed railway roadbed only in the initial stage. In this paper, based on the project of Beishahe of Hada high-speed rail, simulated with the finite element model by ADINA by changing the parameters of CFG pile and roadbed height in the situation of permafrost and unpermafrost of foundation, obtained the relationship of parameters and foundation settlement, it has the directive significance for high-speed railway with CFG pile composite foundation.

Abstract:Taken Lanzhangtian Bridge as engineering background, used ANSYS to simulate whole construction process refinement of numerical analysis. The results show that the crack resistance check in service ability limit state according to Code for Design of Highway Reinforced Concrete and Prestressed Concrete Bridge and Culverts, full prestressed concrete's normal section in the combination for short-term action effects allow certain tensile stressσst－0.8σpc≤0.1ftk. Combined with concrete biaxial pull-pressure strength interval in Code for design of concrete structures, when the tension is very large, concrete may also exceed strength envelope and destruct even compressive stress level is low. So according to the Code for Design of Highway Reinforced Concrete and Prestressed Concrete Bridge and Culverts, the compressive resistance check of bottom plate should also meet transverse normal section pressure stress limit σ≤0.6ftk.