移动式防洪墙防渗性能研究  

Study on Anti-seepage Performance of Mobile Flood Control Wall

作　　者：席超波 欧阳璐 杨冰清 Xi Chaobo;Ouyang Lu;Yang Bingqing

机构地区：[1]长沙市公共工程建设中心

出　　处：《中外建筑》2023年第4期114-118,共5页Chinese & Overseas Architecture

摘　　要：移动式防洪墙是一种新兴的防洪结构,既可以满足防洪抗洪的安全要求,又能满足人们的亲水性需求。移动式防洪墙系统的止水型式和止水材料的设计与选择关系着其安全性、经济性。为了找出合适的止水型式和止水材料,文章通过1∶1原型试验,构建了满足工况要求的移动式防洪墙系统进行试验,在连续统计蓄水后蓄水池一周内的水位变化,并同时使用水下机器人进行迎水面图像采集。结果并未发现移动式防洪墙有明显的渗漏情况,证明采用三元乙丙橡胶作为立柱和挡板间的止水材料、采用PU发泡胶条作为地面止水材料能够保证移动式防洪墙在工况条件下的止水需求,并且能降低移动式防洪墙的建造成本。通过对试验中的水位统计数据进行回归分析,其拟合精度可以高达0.99981,并根据达西定律计算得到移动式防洪墙的渗流量与水位变化曲线。水下机器人采集的图像可以证明移动式防洪墙的止水型式和止水材料可以满足工程需求,可以为相关工程提供一定的参考价值。Mobile flood control wall is an emerging flood control structure that can meet both the safety requirements of flood control,and the hydrophilic needs of the people.The design and selection of the water stopping type and water stopping material of the mobile flood control wall system are related to its safety and economy.In order to find out the suitable water stopping type and water stopping material,this paper constructs a mobile flood control wall system to meet the requirements of working conditions through 1:1 prototype test,and continuously counts the water level changes in the reservoir for one week after water storage,and simultaneously uses underwater robots to collect images on the waterfront.The results did not reveal any obvious leakage of the mobile flood control wall,which proved that the use of EPDM rubber as the water stopping material between the column and the baffle and the use of PU foam rubber strip as the ground water stopping material could ensure the water stopping requirement of the mobile flood control wall under the working condition and reduce the construction cost of the mobile flood control wall.The regression analysis of the water level statistics in the test shows that the fitting accuracy can be as high as 0.99981,and the curve of seepage volume and water level change of the mobile flood control wall can be calculated according to Darcy's law.The images collected by the underwater robot can prove that the water stopping type and water stopping material of the mobile flood control wall can meet the engineering requirements,which can provide some reference value for the related projects.

关 键 词：移动式防洪墙 渗漏 止水材料 回归分析 

分 类 号：TU352.4[建筑科学—结构工程]