土工袋砌护农田排水沟边坡变形监测  

Monitoring the slope deformation of drainage ditch constructed by geotextile soil container

作　　者：李杰 王红雨[1] 李自荣 殷耀国[1] Li Jie;Wang Hongyu;Li Zirong;Yin Yaoguo(School of Civil and Hydraulic Engineering,Ningxia Universiy,Yinchuan 750021,China;Agricultural Comprehensive Development Office of Qingtongxia City,Ningxia Hui Autonomous Region,Qingtongxia 751600,China)

机构地区：[1]宁夏大学土木与水利工程学院,银川750021 [2]宁夏回族自治区青铜峡市农业综合开发办公室,宁夏青铜峡751600

出　　处：《工程勘察》2022年第8期52-57,共6页Geotechnical Investigation & Surveying

基　　金：国家自然科学基金资助项目(41462010).

摘　　要：为评估土工袋装新技术治理宁夏引黄灌区排水沟道边坡滑移坍塌的效果,在土工袋砌护边坡上布置了全站仪和多点位移计两种监测方式,探究这种新型柔性支挡结构的位移变形规律。分别介绍了针对排水沟边坡变形的全站仪监测网和典型沟道断面上多点位移计监测点的布设方法,通过获得多点位移计的边坡内部变形位移和全站仪测得的外部变形位移数据,对比分析了两种监测方式各自的特点、适用性以及土工袋砌护的农田排水沟道边坡的滑移变形规律。结果表明,两种监测方法监测得到的土工袋竖向位移变化规律基本一致,即沟道南坡变形始终大于北坡,坡脚处位移变化量最大;外部变形位移大于内部变形位移。最后讨论了监测柔性支挡结构变形的技术难点与实施方案,认为两种监测方式可以互相补充且全站仪监测维度和可靠性较高,成本更低。In order to evaluate the effect on the slope that construct with the new technique of geotextile soil container to prevent the slope sliding and collapse of agro-drainage channel in Ningxia Yellow River Irrigation Area,two monitoring methods,total station and multi-point displacement meter,have been arranged to investigate the displacement and deformation of the ditch slope.The total station monitoring network and the layout method of the multi-point displacement meter monitoring points on the typical ditch section have been introduced in this article.The internal deformation displacement data monitored with multi-point displacement meter and the external displacement data surveyed by total station have been obtained.The characteristics and applicability of the two monitoring methods as well as the sliding deformation variation are compared and analyzed based on the obtained displacement data.The results show that the vertical displacements are almost to agreeing with each other,that is,the deformation of the south slope of the ditch is always greater than that of the north slope,and the displacement of the slope foot is the largest.In addition,the external deformation displacement is greater than the internal deformation displacement.Finally,the technical difficulties and implementations of the deformation monitoring to the flexible reinforcement structure have been discussed.It is believed that the two monitoring methods can complement each other,and the total station has higher monitoring dimensions and reliability,and lower cost.

关 键 词：土工袋 全站仪 多点位移计 边坡变形监测 

分 类 号：TU196[建筑科学—建筑理论]