临近水库、泄洪渠与住宅区的地铁深基坑工程专项水文勘测研究及地下水处理技术分析  

作　　者：张清坤 商浩 

机构地区：[1]中交一公局集团有限公司,北京100024 [2]大连彤阳市政工程集团有限公司,辽宁大连116021

出　　处：《科技创新与应用》2023年第24期113-116,共4页Technology Innovation and Application

摘　　要：在地铁实施过程中,不同阶段的水文勘测数据可能存在差异,要根据实施阶段之前的勘测数据及周边情况进行研究和分析。为分析地铁建设过程中临近城市水库及泄洪渠深基坑开挖地下水的问题,该文依托大连地铁4号线前牧车站施工工程实例,从基坑降水及封闭式止水2种方案进行深度分析,并考虑对临近新建小区的影响。分析结果表明,不同时期的水文差异较大,采用双排咬合式旋喷止水帷幕,对原始地下水无较大影响,可降低周边建筑物及构筑物影响,基坑安全性可得到更大保证。In the process of subway implementation,there may be differences in hydrological survey data at different stages,so that research and analysis should be carried out according to the survey data before the implementation stage and the surrounding conditions.In order to analyze the problem of groundwater excavation in deep foundation pits adjacent to urban reservoirs and flood discharge canals during the construction of the metro project,this paper conducts an in-depth analysis from the two schemes of foundation pit precipitation and closed water stopping,relying on the construction project example of Qianmu Station of Dalian Metro Line 4,and considers the impact on the adjacent new residential areas.The analysis results show that there are great differences in hydrology in different periods,and the use of double-row rotary jet water-stop curtain has no great influence on the original groundwater,the influence of surrounding buildings and structures can be reduced,and the safety of foundation pit can be better guaranteed.

关 键 词：水库 泄洪渠 住宅区 地铁深基坑 地下水 

分 类 号：U212.23[交通运输工程—道路与铁道工程]