南水北调中线天津干线工程对沿线地下水环境影响  

Effects of Tianjin Trunk Route of the Middle Route of South-to-North Water Diversion Project on Regional Groundwater Environment

作　　者：肖智和[1] 李涛[2] 

机构地区：[1]南水北调中线干线工程建设管理局天津建管部,天津300134 [2]天津市水利勘测设计院,天津300204

出　　处：《南水北调与水利科技》2012年第1期6-10,共5页South-to-North Water Transfers and Water Science & Technology

摘　　要：在南水北调中线天津干线的工程实践中,为了保证工程施工的安全与便捷,采取了地下水降水工程措施,该工程建设对于原来的地下水环境产生了很大的影响。通过对干线箱涵所经过区域的地质构造、地层结构、水文条件的分析,指出地下水高于箱涵底板高程的区域,探讨了箱涵建设与地下水之间的相互关系,分析和评价箱涵施工降水以及今后运行时对相应区域地下水环境的影响,提出优化施工降排水的结构和型式以及强化运行管理的策略和建议,来缓解对区域水环境产生的影响。对未来同类工程的建设和运行提供新的思路,对可能发生的同类工程的施工提供借鉴。In order to ensure the safety and convenience of the engineering construction, the groundwater dewatering method is used in the practiee of the Tianjin trunk route project, which has great influence on the original groundwater environment. In this study, the geo- logical structure,stmtigraphic structure,and hydrological conditions of the area where the box culverts pass are investigated. This paper points out the area where groundwater level is higher than the bottom elevation of the box culvert, and discusses the relationship be- tween the box culverts and groundwater. In addition, the potential effeets of the construction dewatering of the box culverts on the re- gional groundwater environment are analyzed and evaluated,and the suggestions and strategies are proposed to optimize the structure and type of the construction dewatering and to strengthen management, which can be used to deal with the potential impacts on regional groundwater environment. This study offers new ideas for the development and operation of similar projects in the future,and provides the suggestions and references for the construction of these projects as well.

关 键 词：南水北调中线工程 天津干线 箱涵 水文环境 施工降水 混凝土 推土机 水文观测 

分 类 号：TV68[水利工程—水利水电工程] X523[环境科学与工程—环境工程]