【作者】 李云峰； 彭小林；

【Author】 LI Yun-feng PENG Xiao-lin (Guangdong Foundation Engineering Company,Guangzhou 510660,China)

【机构】 广东省基础工程公司；

【摘要】 地铁深基坑工程在轨排井等特殊位置或基坑宽度较大地段适宜采用锚索,而在软弱土层中锚索抗拔力难以保证,采取扩大头锚索能大幅度提高锚索抗拔力。本文介绍广州市地铁五号线三鱼区间轨排井段锚索设计施工情况,在软弱土层中采取扩大头锚索成功经验和失败教训,为进一步推广应用扩大头锚索提供有益参考。更多还原

【Abstract】 The anchorage cable is fit to be applied in the the deep foundation pit construction of Subway project especially in the special locations such as drainage wells and foundation pit with wide width.However,the anti-pulling forces provided by regular anchorage cables in soft soil layer are not sufficient.In this situations,the anchorage cable with expanded head can increase the anti-pulling forces.This paper introduces the design and construction of the anchorage cable with expanded head in the context of drainage wells section of Sanyu district of Guangzhou subway No.5 branch. Through the conclusion of successful experiences and failure lecture,this paper provide the useful references for future application of the anchorage cable with expanded head.更多还原