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粉细砂地层双线盾构施工实测地表沉降规律分析与预测
CSTR:
[cstr]
作者:
作者单位:

1.东南大学交通学院岩土工程研究所;2.中交隧道工程局有限公司

中图分类号:

U459

基金项目:

国家自然科学基金资助项目(51978159)；中交隧道工程局有限公司项目(NO.X-GD-SNJGS(S)-JIS-NT02-09-QT-21)


Analysis and prediction of surface deformation induced by twin shield tunelling in silty fine sand stratum
Author:
Affiliation:

1.Institute of Geotechnical Engineering,School of Transportation,Southeast University;2.CCCC Tunnel Engineering Company Limited

Fund Project:

National Natural Science Foundation of China(51978159)； CCCC Tunnel Engineering Company Limited (NO.X -GD -SNJGS(S) - JIS-NT02-09-QT-21)

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    摘要:

    依托南通地铁二号线某区间盾构隧道施工,针对盾构穿越典型粉细砂地层条件,对双线盾构隧道施工引起的地表沉降开展了现场测试和规律分析,对经典Peck公式在南通地区粉细砂地层中双线盾构施工的适用性进行了探讨,并研究了先行线和后行线土体损失率和地表沉降槽宽度系数的取值及影响因素。研究结果表明在粉细砂地层中,后行线隧道施工对地层的二次扰动效应会引起先行线轴线上方地表沉降的显著增加,且二次扰动效应明显强于其它软土地层,但小于砂土地层；相较于淤泥质土地层,在粉细砂地层中盾构停机对地表沉降的影响更为显著；先行线和后行线施工引起土体损失率比值η1/η2在1~5倍范围内,平均值为2.3,先行线和后行线地表沉降槽宽度系数比值K1/K2在1~2倍范围内,平均值为1.4；砂土、粉细砂和粉土地层中土体损失率比值η1/η2均大于1,η1/η2和K1/K2与隧道覆土深度比(H/D)相关性较弱。

    Abstract:

    Field tests were carried out to observe surface deformation induced by twin shield construction in silty fine sand stratum, based on the project of Nantong Metro line 2. The applicability of the twin peck formula for silty fine sand stratum is examined through measured data, and the value of the ground loss rate and the width parameter of the preceding tunnel and the rear tunnel was analyzed. The results show that in silty fine sand soil, the secondary perturbation effect of tunnel construction on the rear tunnel induces a significant increase in surface settlement above the axis of the preceding tunnel. The secondary perturbation effect in silty fine sand stratum is more obvious than other soft soil stratums, but less than the sand stratum. Compared with silty soil stratum,the impact of shield stoppage on ground settlement is more remarkable in silty fine sand stratum. The ratio of ground loss rate η1/η2 caused by the twin shield construction ranges from 1 to 5 with a mean value of 2.3, and the ratio of the surface settlement trough width parameter K1/K2 between the leading tunnel and the trailing tunnel ranges from 1 to 2 with a mean value of 1.4; The ratios of ground loss rate η1/η2 in sand, silty find sand, and silt soil stratum all exceed 1. Furthermore none obvious relationship can be found between ratios of ground loss rate η1/η2 , width paramete K1/K2 and the ratio of cover depth to diameter (H/D).

    参考文献
    [1] 王智德,江俐敏,饶宇.基于时空关系的盾构开挖地表沉降规律[J].土木与环境工程学报(中英文), 2019, 41 (01):62-69.ang Zhide,Jiang Limin,Rao yu.Estimation of ground settlement induced by shield tunnel excavation based on the time-space relationship[J]. Journal of Civil and Environmental Engineering,2019,41(01):62-69.
    [2] 尚艳亮. 无水砂层地铁盾构隧道施工环境影响机理及监测预警研究[博士学位论文] [D].上海交通大学,2018.an liang shang. Study on the influence mechanism of environment and monitoring & early-warning anhydrous sand layedr[Ph.D.Thesis][D]. Shanghai Jiao Tong University, 2018.
    [3] 仇文革. 地下工程近接施工力学原理与对策研究[博士学位论文][D]. 四川：西南交通大学，2003.QIU Wenge. The study on mechanics principle and countermeasure of approaching excavation in under- -ground works[Ph.D.Thesis][D]. Sichuan：Southwest Jiaotong University，2003.(in Chinese)
    [4] Peck R B. Deep excavation and tunneling in soft ground [A]. In: Proceeding 7th ICSMFE[C]. Mexico City State of the Art Report, 1969,225-290.
    [5] SAGASETA C. Analysis of undrained soil deformation due to ground loss [J]. Geotechnique, 1987, 37(3): 301–320.
    [6] Attewell P.B., Woodman J.P. Predicting the dynamics of ground settlementand its derivatives caused by tunnelling in soil. Ground Eng,1982, 15 (8), 13–22, 36.
    [7] 刘建航，侯学渊.盾构法隧道[M].北京:中国铁道出版社,1991.
    [8] New B.M., O’Reilly M.P.Tunnelling Induced Ground Movements; Predicting their Magnitude and Effects. In: Proceedings of the 4th International Conference on Ground Movements and Structures, Cardiff, invited paper, Springer, pp, 1991. 671–697.
    [9] V.Fargnoli, BoldiniD., AmorosiA.. Twin tunnel excavation in coarse grained soils: Observations and numerical back-predictions under free field conditions and in presence of a surface structure[J].Tunnelling and Underground Space Technology,2015, 49：454–469.
    [10] Gima V. Mathew and Barry M. Lehane. Numerical back- -analyses of greenfield settlement during tunnel boring [J]. Canadian Geotech-nical Journal,2013,50: 145–152.
    [11] SUWANSAWAT S, EINSTEIN H H. Describing settlement troughs over twin tunnels using a superposition technique [J]. Geotech. Geoenviron. Eng , 2007, 133(4): 445–468.
    [12] 马可栓. 盾构施工引起地基移动与近邻建筑保护研究[博士学位论文][D].华中科技大学, 2008.A Keshaun. Research on the ground settlement caused by the shield construction and the protection of the adjacent building[Ph.D.Thesis][D]. Hubei：Huazhong University of Science and Technology，2008.
    [13] 白海卫, 宋守信, 王剑晨. Peck 公式在双线盾构隧道施工地层变形中的适应性分析[J]. 北京交通大学学报, 2015, 39(3): 30–34.AI Hai-wei, SONG Shou-xin, WANG Jian-chen. An adaptability study of Peck formula applied to predicting ground settlements induced by double shield tunneling [J]. Journal of Beijing Jiaotong University, 2015, 39(3): 30–34.
    [14] 丁智，王凡勇，魏新江.软土双线盾构施工地表变形实测分析与预测[J].浙江大学学报 (工学版)，2019,53 (1): 61 -68.ING Zhi, WANG Fan-yong, WEI Xin-jiang. Prediction and analysis of surface deformation caused by twin shield construction in soft soil[J].Journal of Zhejiang University (Engineering Science) ,2019,53(1):61-68.
    [15] 卢健,姚爱军,郑轩等.地铁双线隧道开挖地表沉降规律及计算方法研究[J].岩石力学与工程学报,2019,38(增2）：3735-3747.U Jian，YAO Aijun，ZHENG Xuan，ZHANG Jiantao，TIAN Tian. Study on the law and computational method of ground surface settlement induced by double-line tunnel excavation[J] .Chinese Journal of Rock Mechanics and Engineering, 2019,38(S2）：3735-3747.
    [16] ChenR.P., ZhuJ., LiuW., TangX.W..Ground movement induced by parallel EPB tunnels in silty soils[J]. Tunnelling and Underground Space Technology ,2011,26 , 163–171.
    [17] 何彦承，童 磊，刘兴旺等.考虑停机影响的软土盾构隧道施工变形性状分析[J].四川建筑科学研究, 2020, 46 (增）：48-55.E Yancheng，TONG Lei，LIU Xingwang，YAO Hongbo.Analysis of deformation behavior of shield tunnel in soft soil under construction considering the effect of shutdown[J]. Sichuan Building Science, 2020, 46 (S）：48-55.
    [18] Rowe R.K., Lee K.M. Subsidence owing to tunnelling. II. Evaluation of a prediction technique: Reply. Can-. -Geotech. J , 1994,31, 467–469.
    [19] Yanming Yao, Nan Lu, Yunming Yang, Yuxuan Cao, Hai-Sui Yu.Study of long-termed displacements of a tunnel borin g machine during its stoppage[J].Tunnelling and Underground Space Technology, 2019,84:432-439.
    [20] 林存刚,吴世明等. 盾构掘进速度及非正常停机对地面沉降的影响[J].岩土力学，2012，33（8）：2472-2482.IN Cun-gang，WU Shi-ming，ZHANG Zhong-miao，LIU Jun-wei，LI Zong-liang.Influences of shield advance rate and abnormal machine halt on tunnelling-induced ground surface settlements [J].Rock and Soil Mechanics, 2012，33（8）：2472-2482.
    [21] 候永茂，,郑宜枫等.超大直径土压平衡盾构施工对环境影响的现场监测研究[J] .岩土力学, 2013,33(1):235-242.OU Yong-mao，ZHENG Yi-feng，YANG Guo-xiang，GE Xiu-run，QIU Yu-hua. Measurement and analysis of ground settlement due to EPB shield construction[J].Rock and Soil Mechanics, 2013, 33 (1)：235-242.
    [22] O’Reilly M.P., New B.M.. Settlements above Tunnels in the United Kindom Their Magnitudes and Prediction.In: Jones , M.J. , (Ed.) , Proceedings of tunnelling’ 82 symposium,Springer, Berlin, pp , 1982,173–181.
    [23] Loganathan N., Poulos H.G., Bustos-Ramirez, A, 2000. Estimation of ground loss during tunnel excavation. Conference Proceedings in International conference on geotechnical and geological engineering, GeoEng 2000, Melbourne.
    [24] Zhang Z., Huang M., Zhang M.Theoretical prediction of ground movements induced by tunneling in multilayered soils. Tunnelling and Underground Space Technology , 2011, 26：345-355.
    [25] 韩煊，李宁，J.R.standing.Peck公式在我国隧道施工地面变形预测中的适用性分析[J].岩土力学, 2007, 28 (1):23-35.AN Xuan, LI Ning , STANDINGJamie R.An adaptability study of Gaussian equation applied to predicting ground settlements induced by tunneling in China[J]. Rock and Soil Mechanics,2007,28(1):23-35.
    [26] 蒋彪,皮圣,阳军生,牟友滔.长沙地铁典型地层盾构施工地表沉降分析与预测[J].地下空间与工程学报, 2016, 12 (0 1) :181-187.iang Biao，Pi Sheng，Yang Junsheng，Mou Youtao. Analysis and Prediction of Ground Surface Settlements due to EPB Shield Tunneling of Changsha Metro[J]. Chinese Journal of Underground Space and Engineering, 2016, 12 (0 1) :181-187.
    [27] MAIR R J, TAYLOR R N.Theme Lecture:Bored Tunneling in the Urban Environment [ C] // Proceedings of the 14th International Conference on Soil Mechanics and Foundation Engineering , Rotterdam:[s.n.] , 1997: 2353-2385.
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  • 收稿日期:2021-07-08
  • 最后修改日期:2021-11-05
  • 录用日期:2021-11-19
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