河道基坑两岸不同地质情况下的降水研究  

Study on Precipitation under Different Geological Conditions on Both Sides of River Foundation Pit

作　　者：李志强 周克伟 Li Zhiqiang;Zhou Kewei(Sinohydro Bureau 11 Co.,Ltd.,Zhengzhou,China)

机构地区：[1]中国水利水电第十一工程局有限公司,河南郑州

出　　处：《科学技术创新》2024年第14期115-118,共4页Scientific and Technological Innovation

摘　　要：在河道工程中降水井施工是不可避免的,在建设过程中,需进行基坑的挖掘作业,当地下水位埋深较浅时,将会直接影响到基坑的开挖和后续施工,因此需要采用管井降水技术来降低水位,为后续的施工创造一个方便的环境,同时通过人工措施,使基坑内或基坑外的水位降低至基坑开挖面以下,以方便放置地下水产生渗透破坏,提高坑壁及围护稳定性,方便施工,提高施工质量,避免水下作业。为了保证施工质量、提高施工效率,需对井孔间距和井的的深度进行控制。During the course of construction,the excavation of foundation pit is necessary.When the groundwater level is shallow,it will directly affect the excavation and subsequent construction of foundation pit,therefore,it is necessary to use the pipe well dewatering technology to reduce the water level,to create a convenient environment for the following construction,and to make the water level in the foundation pit or the foundation pit below the excavation surface by artificial measures,in order to ensure the construction quality and improve the construction efficiency,it is convenient to place the groundwater to produce the seepage damage,to improve the stability of the pit wall and the enclosure,to improve the construction quality and to avoid the underwater operation,well spacing and well depth should be controlled.

关 键 词：河道 管井降水 基坑 地下水 

分 类 号：TU463[建筑科学—结构工程]