摘要
深基坑降水引起的地面沉降给工程和周边环境带来很大的危害,以天津地铁XX站深基坑为例,通过使用有限差分模拟软件Processing Modflow建立三维地下水渗流场与地面沉降耦合模型,利用抽水试验数据反演识别场区的水文地质参数,对基坑降水对周边环境的影响进行预测。结合施工要求,本着在规定时间内用最少的抽水量完成降水要求,并对基坑周围造成的环境影响最小的原则,对基坑降水进行优化设计。
As the land subsidence caused by pit dewatering will bring great problem to construction and harm natural envi-ronment, the paper establishes a 3 D coupling mathematical model of groundwater flow and land subsidence in XX subway sta-tion in Tianjing with Processing Modflow software to predicate the influence of pit dewatering on environment around. Accord-ingly the pit dewatering project is optimized to meet the dewatering requirement with least pumping water in the allotted time and minimize environmental destruction simultaneously.
出处
《地下水》
2014年第4期43-45,共3页
Ground water
关键词
基坑降水
地面沉降
耦合模型
预测
优化设计
Pit dewatering
land subsidence
coupling mathematical model
prediction
optimization
