考虑地质影响的深基坑复合土钉墙最优支护参数选择技术

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REN Ruiqi， ZHANG Xuhui，LI Zhenjie，CHEN Shisheng，WANG Jianpan （Shanxi Metallurgical Geotechnical Engineering Investigation Co.，Ltd，Taiyuan O3OO02 China）

Abstract：Bysurveyingthemainbuildingofacomprehensiveoficebuildinginacertainareatoobtaindetailedsoillayerndicators， usingsoilnailesistanceparameterstocalculateandselecttheoptimalsoilnailwallmaterial，anddesigningadepoudatiopit compositesoilnailwallsupportshemeandconstructionproces.Input thedesignedconstructionplanintoFLAC3Dsoftwaretosulate thedpfoundationpitsupportstructureandthelateralpressurecoefcientunderdiferentgeologicalinfluences.Experimental verification：Whentesoilnailparametersareowsandthestelpipeembedingdepthparameteris2meters，tesupportstructurecan minimizeeozotaldisplacementndselementofteepfoudatiopitoeeatestextent；Whentteralpressureofnt islarge，itcanmaintainalowerverticaldisplacementanddeepfoundationpitbotomupliftvalue，whichhasagoodsupporteffect.

Keywords：geologicalifluence；deepfoundationpit；compositesoilailingwallsupportingparameters；orzontaldisplacent； lateral pressure coefficient

0 引言

复合土钉墙作为一种经济、高效的基坑支护方式，可以有效地改善深基坑的稳定性[1-2]，减少深基坑的损坏程度[3-4]。（剩余6093字）