复杂地质条件下桥梁锚碇扩大基础方案研究  

作　　者：陈梁 

机构地区：[1]华东勘测设计院(福建)有限公司,福州350003

出　　处：《科技创新与应用》2023年第36期87-90,共4页Technology Innovation and Application

摘　　要：桥梁工程初步设计需要对水文地质条件进行勘察,而锚碇基坑开挖及施工降水对区域稳定性影响较大。该文以某长江公路大桥为例,结合水文地质勘察情况、水质分析、腐蚀性评价等试验,阐明其水文地质条件并获得相关参数,针对特殊岩土地质问题,对基坑不同季节涌水量进行估算,提出相关涌水防范措施,重新设计满足工程的基础锚碇扩大方案。对类似复杂水文地质条件下的桥梁扩大基础锚碇工程设计具有一定的指导意义。The preliminary design of bridge engineering needs to investigate the hydrogeological conditions,and the Anchorage foundation pit excavation and construction dewatering have great influence on the regional stability.In this paper,taking a Yangtze River highway bridge as an example,combined with hydrogeological investigation,water quality analysis,corrosion evaluation and other tests,its hydrogeological conditions are expounded and relevant parameters are obtained.In view of the special geotechnical geological problems,the water inflow of the foundation pit in different seasons is estimated,the relevant water gushing prevention measures are put forward,and the foundation Anchorage expansion scheme which meets the project is redesigned.It has a certain guiding significance for the engineering design of bridge expanded foundation Anchorage under similar complex hydrogeological conditions.

关 键 词：桥梁基础 水文地质 锚碇结构 涌水量估算 扩大基础方案 

分 类 号：U445.55[建筑科学—桥梁与隧道工程]