ISSN 2096-4498
CN 44-1745/U
Tunnel Construction ›› 2018, Vol. 38 ›› Issue (3): 456-460.DOI: 10.3973/j.issn.2096-4498.2018.03.013
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LI Jidong, YOU Xinhua, XIAO Longge
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Abstract:
The supportstructure integral piperoofing preconstruction method is new for underground works. The core idea of the method, permanent structure of metro station goes first and then fullface soil excavation, is different from the traditional one. The key technologies of the method include longdistance jacking of largediameter steel pipe, spatial cutting and welding of pipe roof and construction of reinforced concrete structure in small space. The practice shows that the method, which integrates reinforcement, support and main structure, can reduce the excavation and support process and temporary support, control the ground defromation effectively and guarantee good working environment.
Key words: underground work, piperoofing preconstruction, steel pipe, support
CLC Number:
U 45
LI Jidong, YOU Xinhua, XIAO Longge. Technology and Development of SupportStructure Integral Piperoofing Preconstruction Method for Underground Works[J]. Tunnel Construction, 2018, 38(3): 456-460.
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http://www.suidaojs.com/EN/Y2018/V38/I3/456