摘要
深基坑降水往往伴有地面不均匀沉降等环境问题,人工回灌法是解决此类问题的有效手段之一。基于多场耦合作用理论,建立水-土耦合模型,应用Processing Modflow软件数值模拟了不同回灌井布置方案下基坑周围地面沉降及其变化。结果表明:设置回灌井后,基坑周边地面的沉降量明显减小,且回灌处相对远离基坑的地面沉降减小十分显著;在一定范围内,相对远离基坑处的回灌效果优于相对近基坑处。
The dewatering in deep foundation pit is often associated with the environmental problems such as the ground subsidence.The artificial recharge method is one of the effective measures to solve this problem.The water-soil coupling model is established based on multi-field coupling theory,and the applying software Processing Modflow is used to simulate the ground settlement and its variation around foundation pit under the different layout schemes of recharge wells.The results show that： After setting the recharge wells,the ground settlement around foundation pit decreases obviously,and the ground settlement decreases significantly at the recharge places where are relatively far away from the foundation pit;In a certain range,the recharge effect relatively far away from the foundation pit is better than that relatively near the foundation pit.
出处
《工程勘察》
2013年第4期30-34,共5页
Geotechnical Investigation & Surveying
