HU Qun-fang,SUN Yan,XIAO Rui,et al.Mechanical Analysis of Bends and Supports of Water Supply Pipeline in Urban Utility Tunnel[J].China Water & Wastewater,2020,36(20 20):19-26.
Mechanical Analysis of Bends and Supports of Water Supply Pipeline in Urban Utility Tunnel
China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU]
volume:
第36卷
Number:
20 20
Page:
19-26
Column:
Date of publication:
2020-10-17
- Abstract:
- In recent years, the construction of the urban utility tunnel has been vigorously promoted with the construction, renewal and reconstruction of municipal pileline network in China. The water supply pipeline, as the most important part of the urban pipe network, has gradually changed from underground to overhead laying with supports or hangers in utility tunnels. Because water supply pipe is a pressure pipe with different angle connection, its water pressure will produce additional thrust force on the pipes bend. This paper analyzes the mechanical problems of DN800 ductile iron pipe bend, and the bearing capacity of buttresses is also investigated in urban utility tunnel. The thrust force of 2 groups with 9 working conditions of DN800 ductile iron pipe is stimulated by the fluid-solid coupling FEM method. The internal force control section for the pipe and buttress in the designed bend is obtained. The research work can provide a technical reference for the design and safe operation of the urban utility tunnel.
Last Update:
2020-10-17