| 某软土深基坑承压水降压研究及实现 |
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| 引用本文： | 张钢琴,杨林德,方恩权.某软土深基坑承压水降压研究及实现[J].地下空间与工程学报,2009,5(2). |
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| 作者姓名： | 张钢琴 杨林德 方恩权 |
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| 作者单位： | 1. 同济大学地下建筑与工程系,上海,200092;同济大学岩土及地下工程教育部重点实验室,上海,200092
2. 广州市地下铁道总公司,广州,510380 |
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| 摘 要： | 研究对某地铁站软土深基坑的富含承压水、地下水地段采用减压井和局部旋喷封底相结合的方案,提出减压井布置方法,并利用地下水渗流数值模型进行渗流场分析与计算,同时根据基坑开挖及减压降水复合因素,分析了对邻近建筑群的沉降影响.总结了实际施工中承压水减压的情况及相应的地表沉降控制方法.
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| 关 键 词： | 软土深基坑 承压水 渗流场 减压井 |
Research on Pressure-relief of Confined Water in Soft Soil Deep Pit and Its Practice |
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| ZHANG Gangqin,YANG Linde,FANG Enquan.Research on Pressure-relief of Confined Water in Soft Soil Deep Pit and Its Practice[J].Chinese Journal of Underground Space and Engineering,2009,5(2). |
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| Authors: | ZHANG Gangqin YANG Linde FANG Enquan |
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| Affiliation: | 1.Department of Geotechnical Engineering;Tongji University;Shanghai 200092;China;2.Key Laboratory of Geotechnical and Underground Engineering of Ministry of Education;3.Guangzhou Metro Corporation;Guangzhou 510380;China |
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| Abstract: | The seepage field of the confined water in soft soil deep pit for subway station project is calculated by the finite element program for groundwater simulated model;and the layout of relief wells is proposed for the whole pressure reduction combined with rotary-type jet grouting to partly closed bottom.Meanwhile according to procedure of foundation pit excavation,with control and operation of relief wells,the effect on the settlement of adjacent sluices caused by pressure-reducing is analyzed.At last,it is ... |
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| Keywords: | soft soil deep pit confined water seepage field relief well |
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