HE Ming-shui,WANG Chang-xiang,L?Yang,et al.Research on Model Test and Design Technology about the Vacuum Drainage System of Utility Tunnel[J].China Water & Wastewater,2020,36(24 24):66-71.
Research on Model Test and Design Technology about the Vacuum Drainage System of Utility Tunnel
China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU]
volume:
第36卷
Number:
24 24
Page:
66-71
Column:
Date of publication:
2020-12-17
- Abstract:
- Due to the long-term lack of water in the sump, the conventional drainage mode of utility tunnel causes the longterm non-operation of the submersible pump, which leads to the high failure rate and short service life of the submersible pump. The vacuum drainage mode of utility tunnel was applied to solve the problems existing in the conventional drainage mode, which can reduce the engineering investment of the whole drainage system and the later maintenance work, and improve the reliability of drainage system in utility tunnel. The vacuum drainage system test model was established, and the operation conditions of the vacuum drainage system under different conditions were simulated. The applicable conditions （including the maximum elevation difference of the system, the maximum service distance within the allowable range of the elevation difference, the catchment capacity or maximum discharge, and the drainage quality）and relevant design points（including vacuum pipeline design, vacuum pump station design and vacuum collection tank design）, and the optimal design parameters（including vacuum pipeline, vacuum pump station and vacuum collection tank） of the vacuum drainage system of utility tunnel were obtained.
Last Update:
2020-12-17