摘要
济南地铁R3线滩头站基坑施工中,针对基底地层综合渗透系数高、涌水量大的特点,采用坑内降水疏干方式控制地下水。对基坑内46口降水井分阶段采用不埋泵的方法封井,一次封井成功率达100%。
In foundation pit construction of Ji’nan Subway Line R3 Tantou Station project,the foundation stratum has high comprehensive permeability coefficient and big water inflow,so in-pit dewatering and drainage method was adopted to control the groundwater.46 dewatering wells in the foundation pit were filled in stages without embedding pump,and the first well filling success rate reached 100%.
作者
郭志明
GUO Zhi-ming(BCEG Civil Engineering Co.,Ltd.,100015,Beijing,China)
出处
《建筑技术》
2020年第7期819-821,共3页
Architecture Technology
关键词
深基坑
降水井
分阶段封井
deep foundation pit
dewatering well
staged well filling
