HUANGRong-min,DUYu,ZHANGHao,et al.Influencing Factors of Drainage Pipeline Health Based on Risk Index Method[J].China Water & Wastewater,2023,39(9):65-71.
Influencing Factors of Drainage Pipeline Health Based on Risk Index Method
China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU]
volume:
第39卷
Number:
第9期
Page:
65-71
Column:
Date of publication:
2023-05-01
- Abstract:
- To establish an efficient and reliable model for predicting the condition of drainage pipes, it is necessary to determine the factors affecting the healthy condition of drainage pipes in China. This paper proposed a descriptive statistical method based on risk index to investigate the relationship between the attributes of drainage pipe and the structural, functional and healthy status of drainage pipe in two drainage areas of W city (Binjiang drainage area and Chengdong drainage area). The attributes of drainage pipe included the type, diameter, length, material and position. The relationship between pipeline attributes and health status in the two drainage areas of W city was slightly different, but the general trend was the same. There was a correlation between the type and the healthy status of pipe. The structural status of stormwater pipe was better than that of sewage pipe, and the functional status of sewage pipe was better than that of stormwater pipe. The drainage pipe with a smaller diameter had a higher risk of structural and functional defects. The pipelines with the length between 25 m to 35 m had the best healthy condition. The structural performance of reinforced concrete pipe was better, while the functional loss of plastic pipe was less. The health of drainage pipes perpendicular to the carriageway was poor.
Last Update:
2023-05-01