多含水层体系下基坑支护施工技术研究

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Research on Construction Technology of Excavation Support in Multi -aquifer System (,)
中图分类号:TU44 文献标志码:A 文章编号:1005-8249(2025)01-0060-05
DOI:10.19860/j.cnki.issn1005- 8249.2025.01.012
LI Jinlong,WU Wei,WANG Taiyi,DUAN Xiaopeng,CHU Xinyu(Shanxi Metallurgical Geotechnical Engineering Exploration Co.,Ltd., Taiyuan O3O0OO,China)
Abstract:Tosolvethe problemofuneven distributionof groundwaterinmulti aquifersystemsandthesetlementand support stabilityof adjacentcast-in-place pilescausedby water level drop duringconstruction,the Soil Mixing Wall(SMW) construction method combined with high-pressre grouting anti-seepage constructionand pile support technology,combined withprecipitation,anchorrods,andintealsupporttechnology,isusedtoensuretheoverallsafetyandstabilityoffoundation pitconstructioinmultiaquifersystems.Theresearchonfoundationpitsupportconstruction technologyinmultiaquifersystems is completed.Theresults indicate thatbothsquareand circular piles in SWMconstructionmethodcanmet therequirementsof support stability. When the diameter of the pile body is 0.6 m ,both can meet the requirements of support stability,which can provide specific reference value for such construction work.
Key words: multi aquifer system; anchor rod; excavation support; internal support construction
0 引言
基坑施工技术是一项涉及多学科的综合性技术[1],受施工工艺、气候条件、地质水文等多种因素的影响,在基坑的设计、勘察和施工过程中,支护结构的稳定性、强度和刚度至关重要[2-3]。(剩余7719字)