基于渗流流速的堤基管涌出口位置检测方法  

Location Detection Method of Piping Outlet in Dike Foundation Based on Seepage Velocity

作　　者：郭波 马建业 黄彬彬[3] GUO Bo;MA Jian-ye;HUANG Bin-bin(Nanchang Key Laboratory of Welding Robot&Intelligent Technology,Nanchang Institute of Technology,Nanchang 330099,China;Yaohu Honors College,Nanchang Institute of Technology,Nanchang 330099,China;Poyang Lake Basin Water Engineering Safety and Resource Efficient Utilization National and Local Joint Engineering Laboratory,Nanchang Institute of Technology,Nanchang 330099,China)

机构地区：[1]南昌工程学院南昌市焊接机器人与智能化技术重点实验室,江西南昌330099 [2]南昌工程学院瑶湖学院,江西南昌330099 [3]南昌工程学院鄱阳湖流域水工程安全与资源高效利用国家地方联合工程实验室,江西南昌330099

出　　处：《水电能源科学》2022年第5期127-130,共4页Water Resources and Power

基　　金：江西省教育厅科学技术研究项目(GJJ201912,GJJ180935);江西省科技厅重点研发计划一般项(20192BBE50015);国家自然科学基金项目(51969016)。

摘　　要：为提高静水条件下堤基管涌出口位置检测的实时性和便捷性,采用扩大管涌渗透破坏区域渗透系数的方法对单层砂基渗流区域进行了数值模拟,模拟结果反映了管涌区域渗流流速的异常。将异常流速作为管涌出口位置检测参数,开展了基于渗流流速异常的堤基管涌出口位置检测方法的试验研究,并与传统的光纤应变法进行对比试验。结果表明,所提检测方法在验证试验中成功检测和定位了管涌出口的位置,验证了在静水条件下和一定的异常流速范围内所提检测方法可达到与传统光纤检测方法同等程度的检测率。In order to improve the real-time and convenience of the location detection of the dike foundation piping outlet under the condition of still water, using the method of expanding the permeability coefficient of the piping permeation failure area, a numerical simulation was carried out on the seepage area of a single-layer sand foundation. The simulation results reflected the abnormal flow velocity in the piping area. The abnormal flow rate was used as a direct indicator for the detection of the piping outlet position in the detection method. An experimental study of the dike foundation piping outlet location detection method based on the abnormal seepage velocity was carried out. Comparison test with the optical fiber strain method was carried out. The results show that the proposed method can detect and locate the piping outlet. Under the conditions of still water and abnormal flow velocity, the detection method designed in this paper can reach the same detection rate compared with the optical fiber strain method.

关 键 词：管涌 渗流流速 堤基 位置检测 

分 类 号：TV871[水利工程—水利水电工程]