降雨作用下路基沉降监测及防渗措施研究  

Research on Subgrade Settlement Monitoring and Anti-seepage Measure under the Action of Rainfall

作　　者：熊真炜 XIONG Zhenwei(Liupanshui Branch of Hebei Haixin Engineering Project Management Co.,Ltd.,Liupanshui 553000,Guizhou,China)

机构地区：[1]河北海新工程项目管理有限公司六盘水分公司,贵州六盘水553000

出　　处：《工程技术研究》2024年第15期138-140,共3页Engineering and Technological Research

摘　　要：路基沉降监测对公路施工及运营而言具有重要作用。文章结合路基监测方法,通过对某区间内的路基变形进行现场监测,分析了在降雨作用下路基的变形情况,并采取了相应的防渗措施。结果表明,路基变形监测方法包括监测桩法、沉降板法,应根据工程实际情况选取合适的监测方法,达到经济及易于操作的目的;在降雨作用下,无论有无防渗膜铺设,降雨对竖向方向的影响要比水平方向更为显著;当未铺设防渗膜时,积水24 h,监测点1、监测点2的路基沉降分别为-44.23 mm、-42.17 mm;在侧铺防渗膜的作用下,当积水24 h时,监测点1、监测点2的路基沉降分别为-17.91 mm、-14.79 mm。Subgrade settlement monitoring plays an important role in highway construction and operation.Based on the subgrade monitoring method,this paper analyzes the deformation of the subgrade under the action of rainfall through on-site monitoring of the subgrade deformation in a certain interval,and adopts corresponding anti-seepage measures.The results show that the subgrade deformation monitoring methods include monitoring pile method and settlement plate method,and appropriate monitoring methods should be selected according to the actual situation of the engineering to achieve the purpose of economy and easy operation;under the action of rainfall,the influence of rainfall on the vertical direction is more signifi cant than that on the horizontal direction,regardless of whether the anti-seepage film is laid;when the anti seepage fi lm is not laid,the subgrade settlement of monitoring point 1 and monitoring point 2 is-44.23 mm and-42.17 mm respectively after 24 hours of water accumulation,under the action of side-laid anti-seepage film,the subgrade settlement of monitoring point 1 and monitoring point 2 is-17.91 mm and-14.79 mm respectively after 24 hours of water accumulation.

关 键 词：道路工程 降雨入渗 路基沉降监测 监测桩法 沉降板法 防渗膜 

分 类 号：U416[交通运输工程—道路与铁道工程]