摘要
随着城市地下空间的拓展,基坑支护越来越受到重视,基坑工程的支护形式多种多样,每一种支护形式所能够适应的地质、水文条件也均有差异,支护形式的选择不仅要考虑支护结构的安全,还要考虑经济适用,选择正确的支护形式对基坑工程的安全施工具有重要意义。淤泥土的工程性能差,在基坑开挖时存在较大风险,本文以广州市某基坑支护工程为研究对象,采用钢板桩的支护形式,并对坑内被动区加固处理,将支护结构的位移变形控制在合理安全的范围内;可供类似工程借鉴和参考。
With the increasing demand for the underground space in the urban area,the various supporting systems for the deep excavations are developed and each of the system could be applied for dealing with the specific site geological and hydrological conditions.Both construction safety and the cost are critical to the selection of the appropriate excavation supporting method.The soft mucky soils have adverse geotechnical properties and high construction risk exists in the deep excavation projects in this soil.This paper presents a supporting system using steel sheet piles for a deep excavation project in soft mucky soils in Guangzhou City.The passive zone inside the excavation area was improved so that deformation of the supporting system could be reduced and they were well within the permissible range.
出处
《土工基础》
2017年第6期690-692,共3页
Soil Engineering and Foundation
关键词
淤泥土
钢板桩
基坑
位移
Mucky Soils
Steel Sheet Piles
Deep Excavation Displacement
