地鐵車站環繞型附屬基坑單側圍護樁支護體系優化研究*

鄧稀肥¹，鄔家林¹，賀恩懷²，陳濤¹，梁克鵬³

(1.中鐵四局集團有限公司，安徽 合肥 230023；2.杭州市地鐵集團有限責任公司，杭州 浙江 310012；3.中鐵二院工程集團有限責任公司，四川 成都 610031)

［摘要］杭州地鐵火車東站為4條地鐵線換乘節點。其中，新修建的6號線和機場快線車站為滿足地鐵站間及地鐵站與高鐵站間大客流通行，車站附屬呈環繞型布置于車站四周。針對該附屬施工工程量大、工期緊的特點，對圍護樁支護體系進行了優化研究，分析了優化體系的工期和資源投入。研究結果表明，優化支護體系極大地縮短了工期及降低了資源投入。

［關鍵詞］地鐵車站；基坑；圍護樁；支護；優化；對比分析

［中圖分類號］TU753；U231+.3         ［文獻標識碼］A         ［文章編號］2097-0897(2021)23-0112-05

Optimization of Single Side Retaining Pile Support System for Attachment Foundation Excavation Designed Surrounding Subway Stations

DENG Xifei¹, WU Jialin¹, HE Enhuai², CHEN Tao¹, LIANG Kepeng³

(1.China Tiesiju Civil Engineering Group Co.，Ltd., Hefei，Anhui 230023, China；2.Hangzhou Metro Group Co., Ltd., Hangzhou，Zhejiang 310012, China；3.China Railway Eryuan Engineering Group Co.，Ltd., Chengdu，Sichuan 610031, China)

Abstract:East-railway Station is a transfer joint for four subway lines in Hangzhou Subway. In order to meet the mass passenger flow between subway stations and between subway stations and high-speed railway stations, the newly built stations of line 6 and airport expressway are arranged around the station in a circular manner. Considering the large engineering quantity and tight schedule in the construction of attachment structure, a study on the optimization of single side retaining pile support system for attachment foundation excavation is carried out. The construction period and resources input are analyzed. The results show that the optimized support system greatly shortens the construction period and reduces the resource input. 

Keywords: subway stations;foundation excavation;retaining piles;supports;optimization;comparative analysis

*中鐵四局集團有限公司重大科研課題：軟土地層近接地鐵線超深基坑群施工技術研究（2018-70）

［作者簡介］鄧稀肥，高級工程師，Email：dxf412@163.com