LIANGXiao-guang,HEJuan,WENWei-hua,et al.Drainage Capacity Evaluation of Sewer Networks Based on Comprehensive Hydraulic Performance Index and Its Application[J].China Water & Wastewater,2022,38(22):22-27.
Drainage Capacity Evaluation of Sewer Networks Based on Comprehensive Hydraulic Performance Index and Its Application
China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU]
volume:
第38卷
Number:
第22期
Page:
22-27
Column:
Date of publication:
2022-11-17
- Keywords:
- sewer networks; surcharge; drainage capacity evaluation; comprehensive hydraulic performance index
- Abstract:
- Drainage capacity evaluation is the basis of planning, design, operation and maintenance of sewer networks. The current hydraulic performance index (HPI) is mainly used for the calculation of simple tree sewer network that water flows along the slope and pipes is connected at the same top elevation as well as without control facilities. The current algorithm was improved to adapt various complex forms and working conditions of the actual sewer network, and the comprehensive hydraulic performance index (CHPI) was proposed to evaluate the sewer drainage capacity. CHPI is weighted by the maximum global hydraulic performance index (MGHPI), the maximum self hydraulic performance index (MSHPI) and the accumulative hydraulic performance index (AHPI), which can not only reflect the surcharge degree of the pipe itself but also reflect the impact on the surcharge degree of upstream pipe. At the same time, it can also take into account the changes of drainage capacity in time and space, and cope with the sudden change of crown elevation. The application potential of CHPI in hydraulic performance evaluation of actual sewer network was shown by taking an 8 km2 sewer network in Sanlongwan area of Foshan as an example.
Last Update:
2022-11-17