| 引渗疏干技术在复杂水文地质条件下深大基坑降水中应用 |
| 投稿时间：2018-03-17 修订日期：2018-04-08 点此下载全文 |
| 引用本文：李兵.引渗疏干技术在复杂水文地质条件下深大基坑降水中应用[J].钻探工程,2018,45(4):69-72,77.LI Bing. Application of cited Infiltration Technique in dewatering of Deep Foundation Pit under Complicated Hydrogeological conditions[J]. Drilling Engineering, 2018,45(4):69-72,77. |
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| 中文摘要:长江漫滩地区第四系松散层是一个巨厚的、复杂的含水体，具有典型的二元地质结构特征，含薄层状夹层，导致垂向透水性远小于水平向，对深基坑工程降水影响极大。南京梅子洲过江通道及青奥轴线地下交通系统及相关工程充分利用引渗技术，成功地对基底上部的地层进行疏干，达到干燥安全的作业环境，满足基坑开挖要求，为工程节省了大量的成本，对类似水文地质条件的深基坑工程具有很好的借鉴意义。 |
| 中文关键词:长江漫滩 深大基坑 引渗降水 多含水层 弱透水层 |
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| Application of cited Infiltration Technique in dewatering of Deep Foundation Pit under Complicated Hydrogeological conditions |
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| Abstract:The Quaternary loose soil of the Yangtze floodplain area is a thick and complex aquifer with typical binary characteristics of geological structure, containing thin interlayer, leading to the vertical permeability far less than the horizontal direction, which has great influence on the dewatering of deep foundation pit engineering. In the river channel, underground traffic system of Qing’ao axis and the related works of Meizizhou in Nanjing, by the full use of the advantages of diversion infiltration technology, it is successful to dewatering the upper formation of the basement to achieve a safe and dry work environment, meet the requirements of foundation pit excavation and save a great deal cost of the project, which has very good reference for deep foundation pit engineering with similar hydrogeological conditions. |
| keywords:Yangtze floodplain deep foundation pit dewatering by diversion infiltration multi-aquifer aquitard |
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