摘要
基于典型工程案例分析,系统梳理不同锚索成孔机理及其技术经济性,结合场区工程地质条件与周边环境约束特征,提出空间分区分层划分方法,实现成孔工法与工程区段的精准适配。工程实践表明,该技术体系在保障环境安全性的前提下,使锚索支护体系质量稳定性显著提升,为岩溶地质条件下的深基坑工程提供了可靠的技术支撑。
Karst regions are characterized by significantly complex geological structures,with well-developed karst fracture-pipe network systems.Combined with environmental constraints such as limited working surfaces for urban foundation pit projects and the dense distribution of surrounding structures,the construction of foundation pit support systems faces severe challenges.Traditional anchor cable support processes are prone to disturbing the stability of the foundations of nearby structures.Therefore,it is of great engineering practical value to conduct research on the optimization of anchor cable hole-forming methods.Based on the analysis of typical engineering cases,this study systematically combs through the different anchor cable hole-forming mechanisms and their technical and economic characteristics.Combined with the engineering geological conditions of the site and the characteristics of surrounding environmental constraints,a spatial zoning and stratification method is proposed to achieve precise matching between hole-forming methods and engineering sections.Engineering practice has shown that this technical system,while ensuring environmental safety,has significantly improved the quality and stability of the anchor cable support system(with a pass rate of 98.6%),shortened the construction period by 21.4%,and provided a reliable technical support for deep foundation pit projects under karst geological conditions.
作者
吕胜坤
王太生
廖德武
吴正超
李应平
张杰
LYU Shengkun;WANG Taisheng;LIAO Dewu;WU Zhengchao;LI Yingping;ZHANG Jie(Guizhou Geology and Mineral Resources Foundation Engineering Co.,Ltd.,Guiyang Guizhou 550081)
出处
《建筑机械化》
2025年第8期157-162,共6页
Construction Mechanization
基金
贵州省科学技术基金(黔科合支撑[2023]-一般126)。
关键词
深基坑
岩溶地区
锚索成孔
特征分析
分区优化
karst areas
urban foundation pit
anchor cable drilling
partition optimization
