摘要
根据基坑的地质条件、环境条件、基坑开挖深度等特点综合考虑,通过方案的对比、论证,采用了"深坑"化两道"浅坑"的设计思路,上坑采用复合土钉支护,下坑采用钻孔灌注桩加一道环形钢筋混凝土水平内支撑支护。该基坑工程所采用的多种支护技术的优化组合方案,安全可靠,经济合理,可为本地区同类超10.0 m深基坑工程设计提供借鉴。
Based on the geological condition, environmental condition, and the depth of excavation, by comparison and demonstration on the schemes, the design of one ＇ deep foundation pit＇ was changed into tow ＇ shallow foundation pits＇. The upper foundation pit was constructed with the composite support plan; the lower part was supported with bored grouting pile and an annular horizontal inner bracing reinforcement with concrete. This optimal combination of multiple support tech- niques was proved safe and economical, could be the reference to the similar design of ultra 10. 0m depth excavations in the same area.
出处
《探矿工程（岩土钻掘工程）》
2009年第5期59-62,65,共5页
Exploration Engineering:Rock & Soil Drilling and Tunneling
关键词
软土地基
深基坑
“深坑”化“浅坑”
多种支护技术
优化组合
soft ground
deep foundation pit
＇ deep foundation pit＇ changed to ＇ shallow foundation pit＇
multiple support techniques
optimal combination
