西堠门大桥锚室渗水病害机理及处治技术研究  

Study on disease mechanism and treatment technique of anchor room seepage of Xihoumen Bridge

作　　者：徐洪科 王华俊 闻人霞 

机构地区：[1]浙江宁波甬台温高速公路有限公司,浙江宁波315040 [2]浙江省工程勘察院,浙江宁波315012

出　　处：《工程勘察》2017年第10期29-33,共5页Geotechnical Investigation & Surveying

摘　　要：西堠门大桥南锚位于舟山金塘岛上,为重力式锚碇,经过多年运营,其特殊的地形地貌、气象水文、工程地质及周边环境条件等特征导致其东侧锚碇后锚室发生了渗水现象,对锚室运营安全造成严重影响,前期采用了多种方法进行处治均收效甚微。本文在分析其渗水病害产生机理的基础上,提出采用具有感应式自动抽水系统的管井井点降水法控制西堠门大桥南锚室底板地下水位高度,并结合恰当的防水、截水措施对西堠门大桥锚室渗水进行综合处治,解决了西堠门大桥锚室渗水问题,取得了良好的工程实际效果,大幅节约了后续的养护费用,对类似工程具有较好的参考价值。Xihoumen Bridge south anchor room is located on the Jintang island of Zhoushan. It is a gravity anchorage. Due to its special topography,meteorological hydrology,engineering geology and surrounding environment conditions,the anchor room in the east side of the bridge has been leaking after many years of operation. It has a serious impact on the normal operation of the anchor room. In the early stage,a variety of methods were used to prevent seepage but it does not work. Pipe well point dewatering with inductive automatic pumping system combined with measures of preventing and removing water to control underground water level in south anchor room of Xihoumen Bridge is put forward in the paper based on the analysis of the mechanism of water seepage disease. The seepage problem in Xihoumen Bridge anchor room is solved successfully and saved maintenance costs. The method could be referred by the similar projects.

关 键 词：西堠门大桥 锚室渗水 管井井点降水 感应式自动抽水系统 

分 类 号：U445.7[建筑科学—桥梁与隧道工程]