Influence of Construction Procedures on Adjacent Energy Supply Pipeline due to Large Foundation Pit Excavation

Abstract

Abstract:

Abstract： In this paper, numerical simulation analyses were performed to investigate the influence of construction procedures on foundation pit itself and the surrounding environment based on the background of A1 foundation pit of Shanghai Hongyuan Prime International Cultural City. The results show that when the excavation is completed, the final values of the amount of excavation pit bottom, vertical displacement of lattice and erect columns, stress of supporting system, lateral displacement of diaphragm wall and vertical displacement of adjacent energy supply pipeline for the Scheme One (mainly using island excavation) and Scheme Two (mainly using basin excavation) under the same conditions for the excavation and supporting are similar, but the latter is slightly smaller. In Scheme Two, the degree of the value dramatic changes for the impact of large foundation pit excavation on the foundation pit itself and the surrounding environment during each working condition is gentler than the value changes in Scheme One, therefore, Scheme Two is safer.

Key words: foundation pit, excavation procedures, adjacent pipeline, three-dimensional finite element

CLC Number:

TU 473， TV 551.4

DU Jialun1，4,ZUO Zibo2,RONG Jian3,HUANG Xingchun1, 2. Influence of Construction Procedures on Adjacent Energy Supply Pipeline due to Large Foundation Pit Excavation[J]. Journal of Shanghai Jiaotong University, 2015, 49(07): 998-1004.

References

［1］郑刚，颜志雄，雷华阳，等. 基坑开挖对临近桩基影响的实测及有限元数值模拟分析［J］. 岩土工程学报，2007, 29(5): 638643.

ZHENG Gang, YAN Zhixiong, LEI Huayang, et al. Field observation and finite element numerical simulation analysis of effect on adjacent piles due to excavation［J］. Chinese Journal of Geotechnical Engineering, 2007, 29(5): 638643.

［2］郑刚，李志伟. 基坑开挖对邻近任意角度建筑物影响的有限元分析［J］. 岩土工程学报，2012, 34(4): 615624.

ZHENG Gang, LI Zhiwei. Finite element analysis of response of buildings with arbitrary angle adjacent to excavations［J］. Chinese Journal of Geotechnical Engineering, 2012, 34(4): 615624.

［3］张陈蓉，蔡建鹏，黄茂松. 基坑开挖对邻近地埋管线的影响分析［J］. 岩土工程学报，2010, 32(sup.2): 154157.

ZHANG Chenrong, CAI Jianpeng, HUANG Maosong. Influence of deep excavation on adjacent underground pipelines［J］. Chinese Journal of Geotechnical Engineering, 2010, 32(sup.2): 154157.

［4］陈福全，汪金卫，刘毓氚. 基坑开挖时邻近桩基性状的数值分析［J］. 岩土力学，2008, 29(7): 19721975.

CHEN Fuquan, WANG Jinwei, LIU Yuchuan. Numerical analysis of pile response due to braced excavationinduced soil lateral movement［J］. Rock and Soil Mechanics, 2008, 29(7): 19721975.

［5］段绍伟，沈蒲生. 深基坑开挖引起邻近管线破坏分析［J］. 工程力学, 2005, 22(4): 7983.

DUAN Shaowei, SHEN Pusheng. Analysis of nearby pipeline damage induced by deep excavation［J］. Engineering Mechanics, 2005, 22(4): 7983.

［6］Goh A T C, Wong K S, Teh C I, et al. Pile response adjacent to braced excavation［J］. Journal of Geotechnical and Geoenvironmental Engineering, 2003, 129(4): 383386.

［7］Hong S H, Lee F H, Yong K Y. Threedimensional pilesoil interaction in soldierpiled excavations［J］. Computers and Geotechnics, 2003, 30: 81107.

［8］王卫东，吴江斌，翁其平. 基坑开挖卸载对地铁区间隧道影响的数值模拟［J］. 岩土力学，2004, 25(sup.2): 251255.

WANG Weidong, WU Jiangbin, WENG Qiping. Numerical modeling of affection of foundation pit excavation on metro tunnel［J］. Rock and Soil Mechanics, 2004, 25(sup.2): 251255.

［9］刘国彬，王卫东. 基坑工程手册［M］. 北京: 中国建筑工业出版社, 2009.

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