烟台某沿海小区基坑支护施工设计.pdfVIP免费

2023年6月地质装备烟台某沿海小区基坑支护施工设计李博1,2,宋世杰1,2(1.山东省第三地质矿产勘查院,山东烟台264004;2.山东省地矿局钻探工程技术研究中心,山东烟台264004)摘要:拟建项目基坑开挖深度4.85~6.65m,支护总长1137.4m,临近海岸,属海陆交互相沉积地貌,地质水文条件和周边的环境复杂。本着安全、经济、可行的原则,采用SMW工法和锚杆、放坡土钉墙加降水井降水的组合支护体系。施工过程严格按设计和规范要求,实践证明支护方案达到了如期效果,很好地解决了基坑支护的位移和沉降问题,基坑安全可靠。关键词:基坑;SMW工法;土钉;锚索中图分类号:TU473文献标识码:B文章编号:1009282X(2023)03003704ConstructionDesignofFoundationPitSupportataCoastalCommunityinYantaiLIBo12SONGShijie121TheThirdGeological&MineralExplorationInstituteofShandongProvinceYantaiShandong264004China2DrillingEngineeringTechnologyResearchCenterShandongBureauofGeology&MineralResourcesYantaiShandong264004ChinaAbstractTheexcavationdepthoftheproposedproject􀆶sfoundationpitis485~665mandthetotalsupportlengthis11374mItisadjacenttothecoastandbelongstothesedimentarylandformofsealandinteractionwithcomplexgeologicalandhydrologicalconditionsandsurroundingenvironmentBasedontheprinciplesofsafetyeconomyandfeasibilityacombinedsupportsystemconsistingofSMWconstructionmethodanchoringcablesslopingsoilnailingwallsanddewateringisadoptedforthisfoundationpitTheconstructionprocessstrictlyfollowsthedesignandspecificationrequirementsPracticehasproventhatthesupportplanhasachievedtheexpectedeffectwellsolvingthedisplacementandsettlementproblemsofthefoundationpitsupportandensuringthesafetyandreliabilityofthisfoundationpitKeywordsfoundationpitSMWconstructionmethodsoilnailinganchoringcable收稿日期:20220823作者简介:李博(1975-),男,本科,助理工程师,主要从事地质钻探和基础施工,E-mail:1748736326@qq.com。1项目概况拟建项目位于烟台市芝罘区幸福南路南侧,东侧濒临大海,周边环境复杂[1],建筑包括6栋18层、2栋26层的住宅楼和2栋商业楼。基坑为一层地下室,基坑支护深度4.85~6.65m,支护总长1137.4m。2基坑周边环境基坑东侧有2栋11层住宅楼、1栋6层住宅楼和1栋4层商业楼,其中地下室外墙距离11层住宅楼最近,约9.05m,距离...