辽宁工程技术大学学报（自然科学版）2024，Vol.43Issue(4)：434-442,9.DOI:10.11956/j.issn.1008-0562.20230439
典型软土地层不同端头形式管廊基坑的变形规律
Deformation law of pipe gallery foundation pits with different end forms in typical soft soil layers
摘要
Abstract
In order to study the influence of different end forms on the deformation of foundation pits in soft soil areas,the horizontal displacement and surface settlement laws of the foundation pit enclosure structure were ana-lyzed based on the typical deep foundation pit project of Zhongshan Science City Pipe Gallery in soft soil areas.The results show that the horizontal displacement of the enclosure structure gradually increases from the pit angle and then tends to stabilize;the surface settlement around the foundation pit first increases and then decreases from the pit angle before stabilizing,and there are areas prone to collapse;the horizontal displacement of the founda-tion pit enclosure structure of the 90º symmetric end,120º asymmetric end,and 150º asymmetric end pipe gallery gradually increases from the pit angle,and tends to stabilize at 5.4He,8He,and 5.3He(He is the excavation depth of the foundation pit),respectively;the surface settlement of the 90º symmetric end,120º asymmetric end,and 150º asymmetric end pipe gallery foundation pit tends to stabilize after being 6He,8.3He,and 5.7He away from the pit angle,respectively.The range of easily collapsed areas is 1.0He～6.0He,3.57He～7.57He,and 2.14He～5.14He away from the pit angle,respectively.The research results provide a reference for controlling the deformation of foundation pit during the construction of pipe gallery foundation pit in soft soil area.关键词
软土地层/管廊基坑/基坑变形/坑角效应/端头形式Key words
soft soil stratum/pipe gallery foundation pit/deformation of foundation pit/pit angle effect/end form分类
建筑与水利引用本文复制引用
詹文兵,王硕,汤景林,王子珺,杨清源..典型软土地层不同端头形式管廊基坑的变形规律[J].辽宁工程技术大学学报（自然科学版）,2024,43(4):434-442,9.基金项目
国家自然科学基金面上项目(52272341) （52272341）
翠亨新区起步区科学城项目(CD28KXC-2022-D-027) （CD28KXC-2022-D-027）
