矿坑区域建筑地基基础处理技术研究  

Research on Foundation Treatment Technology for Buildings in Mining Pit Areas

作　　者：薛振龙 姚传栋 郭丰佐 XUE Zhenlong;YAO Chuandong;GUO Fengzuo(Hydrogeology and Engineering Geology Brigade of Shandong Provincial Bureau of Geology&Mineral Resources,Jinan 250014,Shandong,China)

机构地区：[1]山东省地质矿产勘查开发局八〇一水文地质工程地质大队,山东济南250014

出　　处：《工程技术研究》2023年第11期195-198,共4页Engineering and Technological Research

摘　　要：强夯施工是地基处理的常用方案,但强夯处理地基影响深度较浅,对回填矿坑地基处理效果欠佳,无法达到深部土体加固效果,直接影响地基处理质量。若矿坑上部为住宅或地下车库,直接影响主体结构及车库安全。采用多种形式的地基处理方式能有效解决这一难题,弥补强夯处理深度的不足。文章首先介绍了工程案例的概况,然后分析了矿坑区危害机制,最后在高铁城地基处理项目中采用了强夯+注浆的地基处理方案,有效解决了矿坑地基承载力不足的问题,可供参考。Dynamic compaction construction is a commonlyused scheme for foundation treatment,but the influencing depth of dynamic compaction treatment foundation is shallow,and the treatment effect of backfill mining pit foundation is not good,which can not achieve the effect of deep soil reinforcement and directly affect the quality of foundation treatment.If the upper part of the mining pit is residential buildings or underground garages,it will directly affects the main structure and garage safety.The use of various forms of foundation treatment can effectively solve this problem and make up for the lack of dynamic compaction depth.Firstly,the general situation of the engineering case is introduced.Then,the hazard mechanism of the mining pit area is analyzed.Finally,the foundation treatment scheme of dynamic compaction+grouting is adopted in the high-speed rail city foundation treatment project,which effectively solves the problem of insufficient bearing capacity of the mining pit foundation for reference.

关 键 词：矿坑 强夯 注浆 地基处理 

分 类 号：TU43[建筑科学—岩土工程]