基于GMS软件的基坑降水数值模拟*
欧孝夺1,2全守岳1李胜1江杰1,2黄颂扬3
Numerical Simulation of Foundation Pit Dewatering Based on GMS Software
OU XiaoduoQUAN ShouyueLI ShengJIANG JieHUANG Songyang
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作者信息:1.广西大学土木建筑工程学院，530004,南宁；
2.广西大学工程防灾与结构安全重点实验室，530004,南宁；
3.广西桂泰耕源投资有限公司，530000,南宁
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Affiliation:College of Civil Engineering and Architecture, Guangxi University， 530004, Nanning, China
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关键词:
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Key words:
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DOI:10.16037/j.1007-869x.2019.05.005
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中图分类号/CLCN:TU46+3
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栏目/Col:学术专论
摘要:
在现场降水试验数据基础上，建立适用于南宁盆地的三维渗流数学模型，对车站深基坑降水过程进行数值模拟。模拟结果与实测值吻合较好，证明该模型适用于南宁特殊地层基坑的降水设计。对基坑水位降深随时间发展的规律以及地下连续墙对降水井涌水量的影响进行预测，得到以下结论：距地下连续墙越远，涌水量越大，水位降深越小；地下连续墙越长，隔水效果越好，水位降深越大；车站出入口位于地下连续墙中部时,水位降深受地下连续墙影响最大。
Abstracts:
Based on the data of field precipitation test, a three-dimensional seepage numerical model is established to take digital simulation of dewatering process in deep station foundation pit. Since the simulation result coincides with the measured data and proves to be suitable for the complex dualistic structure strata in Nanning Area. The law of water level changes in foundation pit with time and the influence of existing diaphragm wall on the hydraulic discharge of dewatering well are predicted. It is concluded that the farther away from the diaphragm wall, the greater water inflow and the smaller water level drawdown will be; as the same, the longer the diaphragm wall is, the better water separation effect and the deeper drawdown of water level will be. When the station entrance is located in the middle part of the diaphragm wall, the water level drawdown will be greatly affected by the diaphragm wall.
引文 / Ref:
欧孝夺,全守岳,李胜，等.基于GMS软件的基坑降水数值模拟[J].城市轨道交通研究,2019,22(05):22.
OU Xiaoduo，QUAN Shouyue，LI Sheng，et al.Numerical Simulation of Foundation Pit Dewatering Based on GMS Software[J].Urban Mass Transit，2019，22(05)：22.
OU Xiaoduo，QUAN Shouyue，LI Sheng，et al.Numerical Simulation of Foundation Pit Dewatering Based on GMS Software[J].Urban Mass Transit，2019，22(05)：22.
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