QIANGJian,GAO Cheng-peng,KANG Ming-rui.Research on Key Technology for Design of Long-distance Utility Tunnel Constructed by Underground Excavation Method[J].China Water & Wastewater,2022,38(16):77-82.
Research on Key Technology for Design of Long-distance Utility Tunnel Constructed by Underground Excavation Method
China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU]
volume:
第38卷
Number:
第16期
Page:
77-82
Column:
Date of publication:
2022-08-17
- Keywords:
- utility tunnel; long-distance; underground excavation
- Abstract:
- Underground excavation method is an effective method for construction of utility tunnel in old urban areas. However, utility tunnel has its own function system and characteristics, resulting in underground tunneling technology can not directly apply in the long-distance underground utility tunnel engineering. The key of long-distance underground excavation of utility tunnel is to meet its necessary functional requirements in underground excavation project. Based on the summary and thinking of a large number of engineering practices, the countermeasures for the main problems of long-distance underground utility tunnel constructed by underground excavation method were introduced. First, the integration of the functional system of the utility tunnel was achieved by using “interval design” technology, and composite functional nodes with single continuous section in the long-distance underground utility tunnel were formed. Second, the integrated well design technology was formed by using the design scheme of underground construction well combined with composite function node of the utility tunnel. Finally, ventilation and escape problems of long-distance underground excavation were solved by optimization of the scheme. Combined with the above technical schemes, the underground tunneling technology can be reasonably applied to utility tunnel constructions, which provides reference for promoting the application and development of utility tunnel constructed by underground excavation technology.
Last Update:
2022-08-17