摘要
厦门市地铁地铁3号线湖里法院站主体结构基坑位于近海且富水的地层,为提高基坑降水效果,通过基坑用水量及降水井的计算分析,选择管井降水井点的布设方法,并针对管井降水井施工容易出现的质量问题,提出相应的施工技术及操作细节,最后通过降水从监测数据,表明该基坑降水效果良好。实践证明:管井降水作为地铁车站基坑开挖降排水工艺具有较好的应用前景。
The foundation pit of the main structure for Huli Fayuan Station of Xiamen Metro Line 3 is located at the offshore water-rich stratum.In order to improve the dewatering effect of foundation pit,through the calculation and analysis of the water consumption and dewatering well of foundation pit,the layout method of tube well dewatering well points is selected.And the corresponding construction technology and operation details are put forward aiming at the quality problems prone to the construction of tube well dewaatering well.Finally,the monitoring data show that the dewatering effect of the foundation pit is good.Practice has proved that the tube well dewatering,as a drainage and dewatering technology for the excavation of foundation pit of metro station,has a good application prospect.
出处
《城市道桥与防洪》
2022年第11期182-187,I0017,共7页
Urban Roads Bridges & Flood Control
基金
中铁一局集团有限公司技术研发项目(2017A-043)。
关键词
井点降水
富水地层
基坑开挖
管井
施工工艺
well point dewatering
water-rich stratum
excavation of foundation pit
tube well
construction technology
