| 某大型软土深基坑围护中多种支护技术的优化组合 |
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| 引用本文： | 杜常春,周喜锋,焦德智.某大型软土深基坑围护中多种支护技术的优化组合[J].探矿工程,2009,36(5):59-62,65. |
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| 作者姓名： | 杜常春 周喜锋 焦德智 |
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| 作者单位： | 浙江省工程勘察院,浙江宁波315012 |
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| 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10．0m深基坑工程设计提供借鉴。
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| 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 |
| 收稿时间： | 2008/12/31 0:00:00 |
| 修稿时间： | 2009/2/26 0:00:00 |
Application of Optimal Combination of Multiple Support Techniques in a Large Deep Foundation Pit Support in Soft Ground |
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| DU Chang-chun,ZHOU Xi-feng and JIAO De-zhi.Application of Optimal Combination of Multiple Support Techniques in a Large Deep Foundation Pit Support in Soft Ground[J].Exploration Engineering(Drilling & Tunneling),2009,36(5):59-62,65. |
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| Authors: | DU Chang-chun ZHOU Xi-feng and JIAO De-zhi |
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| Institution: | (Zhejiang Engineering Prospecting Institute, Ningbo Zhejiang 315012, China) |
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| Abstract: | 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. |
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| Keywords: | soft ground deep foundation pit ＇ deep foundation pit＇ changed to ＇ shallow foundation pit＇ multiple support techniques optimal combination |
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