QIGuo-fu,SHENXiao-hua,FENG Hui-chuan,et al.Detection Technology, Case and Analysis of River Crossing Pipe in Sewage Collection System[J].China Water & Wastewater,2022,38(10):141-146.
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Detection Technology, Case and Analysis of River Crossing Pipe in Sewage Collection System

China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU] volume: 第38卷 Number: 第10期 Page: 141-146 Column: Date of publication: 2022-05-17
Author(s):
QI　Guo-fu1; 2;  SHEN　Xiao-hua1; 2;  FENG Hui-chuan1; 2;  YAN　Xiao-ming3;  ZHOU　Lei3;  WANG Yao-zeng1; 2;  DONG　Yi-fan1; 2
（1. East China Branch， China Machinery International Engineering Design & Research Institute Co. Ltd.， Nanjing 210023， China； 2. Hunan Engineering Research Center for Water Treatment Process & Equipment， Changsha 410007， China； 3. Nanjing Water Group Co. Ltd.， Nanjing 210000， China）
Keywords:
river crossing pipe;  detection;  leak measure by electric method;  underwater robot
Abstract:
The defect of river crossing pipes is crucial to the health assessment of sewage collection system. Taking the integrated project of drainage pipe network dredging, inspection, design and construction of a sewage collection system in Nanjing as an example, various detection methods of river crossing pipes are analyzed, the technical route is clarified, typical detection methods cases are listed, and the structural defects of 58 river crossing pipes within the scope of the system are evaluated. The results show that leak detection by electric method and underwater robot detection technology can effectively detect pipeline defects under the condition of full water. The proportion of structural defects in river crossing pipes is far greater than that of ordinary pipelines and the proportion of structural defects in plastic pipes is far greater than other pipes.
Last Update: 2022-05-17