摘要
通过神延线小煤窑采空区桥梁桩基冲击钻桩的施工实践 ,介绍了利用片石、碎石、水泥粘土坯对开放性地下孔洞进行局部封堵冲击成孔的施工技术 ,并对用碎石、粘土、水泥拌制的钻土砼进行了试验分析 。
Based on practice of impact-shock piling of pile foundation of a bridge in a coal mine goaf, the construction technology of partial sealing the underground cavern by impact-shock piling with schistose rock, crushed rock and cement -clay body was presented. An analysis on the concrete mix of crushed stone, clay and cement was carried out for determination of its mix proportion. [
出处
《地下空间》
CSCD
2000年第3期192-194,共3页
Underground Space
关键词
小煤窑采空区
地下孔洞
局部封堵
冲击钻桩
桥梁
Coal mine goaf
underground cavern
partial sealing
impact-shock hole forming
