长大深基坑施工中降水技术的综合应用  

Comprehensive Application of Precipitation Technology in the Construction of Large-Long-Deep Foundation Pits

作　　者：杜群波 DU Qun-bo(CCCCSHEC Fourth Engineering Company Ltd.,Wuhu 241000,China)

机构地区：[1]中交二航局第四工程有限公司,芜湖241000

出　　处：《价值工程》2020年第12期121-122,共2页Value Engineering

摘　　要：在长大深基坑的施工过程中降水尤为重要,其降水效果的好坏不仅关系到深基坑的施工安全,还对项目的施工进度、成本控制及主体结构的施工质量造成严重影响,应当引起足够的重视。本文结合京雄城际铁路机场2号隧道长大深基坑的工程实例,详细阐述了管井降水的施工要点和赶工过程中轻型井点降水在深基坑施工中的应用,为后期类似边界条件的长大深基坑工程提供借鉴。In the construction process of large-long-deep foundation pits,precipitation is particularly important.The quality of the precipitation is not only related to the safety of deep foundation pits,but also has a serious impact on the construction schedule,cost control and construction quality of the main structure of the project,so it should attract enough attention.This article combines the engineering example of the large-long-deep foundation pit of the No.2 tunnel of the Beijing-Xiong’an Intercity Railway Airport,and elaborates the construction points of the tube well precipitation and the application of light well point precipitation in the construction of deep foundation pits in the process of rushing to provide reference for large-long-deep foundation pit projects with similar boundary conditions in the later period.

关 键 词：长大深基坑 管井井点降水 轻型井点降水 

分 类 号：TU753.66[建筑科学—建筑技术科学]