Construction Technology for Shallow buried Mining Tunnel in Soft Soil Strata below Bottom Floor of Basement、

Tunnel Construction ›› 2011, Vol. 31 ›› Issue (2): 240-245.

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Construction Technology for Shallow buried Mining Tunnel in Soft Soil Strata below Bottom Floor of Basement、

BO Meng-Liang

China Railway Tunnel Group Co., Ltd., Luoyang 471009, Henan, China

Received:2011-02-18 Revised:2011-03-29 Online:2011-04-20 Published:2011-05-11

Abstract

Abstract:

In order to achieve parallel transfer between Metro line 1 and line 2 at Laojie Station of Shenzhen Metro, the platform of Laojie Station on Metro line 1 is expanded. The construction conditions are analyzed, the key tunneling technologies and the influence on the environment imposed by the tunneling under shallow overburden are discussed, the influence on the surface buildings imposed by the excavation of the tunnel and the exposing of the pile foundations are analyzed by means of numerical simulations. The engineering practice demonstrates that the technologies adopted are reliable and the construction risks are avoided with the help of the numerical simulations.

Key words: tunnel mined under shallow cover, soft ground, underpinning, numerical simulation

BO Meng-Liang. Construction Technology for Shallow buried Mining Tunnel in Soft Soil Strata below Bottom Floor of Basement、[J]. Tunnel Construction, 2011, 31(2): 240-245.

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Construction Technology for Shallow buried Mining Tunnel in Soft Soil Strata below Bottom Floor of Basement、

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