深基坑开挖无对顶支护工艺研究与创新  

On research and innovation of roof bolting craft in deep foundation pit excavation

作　　者：关英 

机构地区：[1]山西钢铁建设(集团)有限公司,山西太原030003

出　　处：《山西建筑》2017年第19期75-77,共3页Shanxi Architecture

摘　　要：对某厂房内大型深基坑开挖无对顶支护工艺进行了研究与创新,通过利用深基坑旁原有设备基础采用植筋拉锚支护的新工艺,结合桩基托换法,解决了厂房内施工环境狭长、挖土极其困难的施工技术难题,并通过计算变形量与实际测量结果分析对比,提出了拉锚法支护结构的适用范围。The paper researches and innovates the roof bolting craft of some large deep foundation pits excavation of some workshop, adopts the former equipment beside the deep foundation pit to utilize the reinforced anchor support, solves the difficulties in the construction techniques in-cluding the narrow construction environment of the workshop and hardship in the excavation by combining with the pile foundation underpinning, and points out the adopted scopes for the anchor support structure by comparing with the calculation of the deformation and the measurement re-sults.

关 键 词：深基坑 桩基托换法 拉锚法 水泥搅拌桩 

分 类 号：TU463[建筑科学—结构工程]