Abstract:Based on the practical project a study on analysis methods for rock slope foundation stability of highrise-building project criterion transfer coefficient method, rotation limit equilibrium method (Sweden slices method) and finite element method was carried out.The authors found that safety factor of criterion transfer coefficient method is larger than that of rotation limit equilibrium method, but is similar to the results of finite element method. So, when rockslope foundation stability of highrise building is to be analysed,the rotation limit equilibrium method is suggested to use.

Abstract:It is necessary to study the correlation between the same peak values of two horizontal components of earthquake ground motions. The formulae for correlation of 5 peak values are regressed by using the Least Square method and the uniform LS method in which the variables are both taken to be random. Ths suggestion on the application of the formulae is given in this paper.

Abstract:Based on the information from China and overseas,a design suggestion for moment modulation of post-tensioned prestressed concrete continuous beams with bond has been put forth in this paper. The result calculated by the suggestion is consistent with the result of varying rigidity method.

Abstract:The cause of mine pollar destructionin in Dachang Tongkeng Tin Mine was analyzed from observation by photoelastic stressmeter embedded in mine stope 570. The resulte obtained can serve as guidance for further work.

Abstract:On the basis of discussing the damage mechanism of cushion cap, a method of optimum design for pile group foundation is put forward in this paper.The piles are decorated on the cushion cap which makes the area of cushion cap minimum.The object function of optimum design for cushion cap is its volume and the binding functions are the requirements of shear, column die cutting, corner-pile die cutting and settlement for cushion cap.The optimum design has been done by a computer program. This method is used to design a factory building. The final result suggests that this method is highly effective and practical. A fair-scale economic efficiency can be obtained in ifs practical use.

Abstract:Based on the analysis for common methods of construction programme design with considering the new engineering condition, the author gives discussion on the skills of programme design.

Abstract:In this paper, the grey theory is used to predict both t-s curves obtained from the fast load test and general P-S curve.A Computer program has been worked out.The analysis of an engineering example shows that the predicton is feasible.

Abstract:It is an important subject to solve the problem of Elastodynamics numerically.In this paper,a calculation formula to compute singular intergral for elastodynamics under Fourier transform using Boundary Element Methods is discussed.

Abstract:A method was proposed for calculating the crack tensor by the elastic wave velocities in the orthotropic rock masses,based on the theoretical relations of crack tensor and compliance tensor and elastic wave velocities,The numerical results show that there is a good correlation with the measured data.

Abstract:Based on the analysis of hydrogeological condition, and hydraulic characteristics and hydraulic relation in rock mass,the seepage of rock mass in carved stone area has been generalized and its mathematics models established. By numerical simulating,correctness of Seepage models of rock mass have been proved.

Abstract:For azimuthal anisotropy seismic exploration, it is very important to separate the fast and slow shear waves splitting in this type of anisotropic media. Many researchers have worked on this problem, but their methods are not realistic in exploration. In this paper, a new method of separating the shear waves splitting in EDA media is presented, that can be directly applied to actual use. Through numerical examples, it can be found that the method is highly efficient and accurate.

Abstract:通过对金龙山Ｉ区滑坡体进行了随机场有限元分析，得到了基于岩体Ｈｏｅｋ－Ｂｒｏｗｎ经验强度准则随机概率模型、Ｍｏｈｒ－Ｃｏｕｌｏｍｂ抗剪强度准则概率模型和Ｄｒｕｃｋｅｒ－Ｐｒａｇｅｒ准则概率模型的滑坡体的可靠度分布规律；在此基础上对二滩水电站金龙山Ｉ区巨厚层滑坡体稳定性作了评价。

Abstract:This paper discusses the specimen design in experiments of dynamic mixed-mode fracture initiation in rock, and explains that four-point bending specimen is very adapted;then it discusses the experimental method of four-point bending specimen,and an initial experiment and analysis was carried out. Some meaningful fracture curves were obtained.

Abstract:The concrete is a typical brittle material.The fracture and propagating failure of the micro-crack in loaded concrete are very important problem in civil engineering.In this paper,from the equilibrium differential equations and failure criterion,the elastic-brittle static fracture analysis of the plane stress micro-crack in concrete loaded by stretching stresses was done near crack line.The relations between the stretching stresses and the length of brittle fracture zone on the crack line were obtained.

Abstract:The selection of the design plans for deep cutting slope of high-level highway in mountain area,in general speaking,only depends on the designer's experience and intuitive determination at the present time,which results in unreasonable,even error,decision or plan.It unavoidably causes enormous damage.This paper proposes to adopt correlation degree analysis method of grey system theory for choosing the optimal design plan.It will give a definite and real meaning about choosing design plan and avoiding or reducing errors in design work.

Abstract:Based on the lots of date come from the experiments and field tests,this paper reviewed the study of engineering properties of the soft _ soil; some engineering properties of the dredger fill were analyzed and summed up and compared with the natural soft _ soil's.Finally,itpointed out that the dredger fill is inferior to the natural soft _ soil about their engineering properties,but its condition of improvement is better.

Abstract:The application of the element-free method in the bending problems of plates has not been found since it was proposed.In this paper,the element-free method is applied to compute the deflection and the moment of the elastic foundation plate with free boundary,and the corresponding formulas as well as the computer program are developed.Numerical examples show that the accuracy of the method used in the foundation plate problem is satisfactory.Therefore,it is reasonable and feasible for using the element-free method in the plate bending problems.

Abstract:提出了岩体Ｍｏｈｒ－Ｃｏｕｌｏｍｂ强度准则的可靠度计算方法，同时还讨论了ｃ、等强度参数的变异系数和参数概型对准则可靠度的敏感性，本文通过分析指出强度参数的变异性是准则可靠度的决定性因素之一，因此对岩体工程的详细勘察和试验以及对参数的变异性进行统计分析，对于工程设计来说是具有较大意义的。

Abstract:The BOT model is a new investment and finacing model which is applied to infrastructure construction. The concession agreement is awarded by government to the project company which operates and develops specific BOT project with concession right, it is the core of the BOT project and decides the basic structures and pattens of other agreements.The government bears the definite responsibility for the success of the BOT project.There are seven factors to be worth notice when the government contrives the BOT concession agreement. 1.The govemment should stick to native standpoints and interests and, at the same time take the investor's rights and interests into account;2. lighten the burden of the government as much as possible, without abandoning its responsibility;3.fully understand and apply the International Customs and Practice of the BOT model with considering the situation of the country; 4.pay equal attention to the introduction of both capitals and technology; 5.properly handle the relationship between the introduction of foreign capital and domestic economic development; 6. encourage the active externality, and restrict the passive one; 7. prevent and eliminate the ill monopoly.

Abstract:This paper comments upon the deformative increasing quantity models, with their application to any nonlinear elastic material.Eventually, the entire analysis of beam_columns can be realized by this method.