北山隧道式大跨度地下四季滑雪场围岩稳定性研究

Hazard Control in Tunnelling and Underground Engineering

2019, Vol. 1

Issue (3): 109-115 DOI:

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Study on stability of surrounding rock in large-span underground tunnel of Beishan four seasons ski resort

GAO Yuan^1,2, YANG Tianhong^1,2, XIN Quanming³, LIU Feiyue^1,2

1. Key Laboratory of Ministry of Education on Safe Mining of Deep Metal Mines, Northeastern University, Shenyang 110819, Liaoning, China;
2. Center of Rock Instability and Seismicity Research, School of Resources and Civil Engineering, Northeastern University, Shenyang 110819, Liaoning, China;
3. China Northeast Architectural Design and Research Institute Co. Ltd., Shenyang 110006, Liaoning, China

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Abstract Aiming at the problems of complex engineering geology, long service life and stability of large-span chamber(exposure area up to 2 000 m² or more)of Beishan cross-country ski resort rebuilt by Jilin Beishan Civil Air Defense Project, refinement investigation of rock mass structure was carried out. The indoor rock mechanics experiment and wave velocity test in borehole were conducted. Structural surfaces investigation based on photogrammetry method combined with the method based on in borehole radar and television was adopted to study the surface joints, fractured zones and spatial distribution of loosening zone of surrounding rock mass. The quality of surrounding rock was classified and zoned, the mechanical parameters were determined, and the stability of surrounding rock was studied. Through numerical simulation analysis and calculation of large-span tunnel, the tension stress zone of roof was delineated, the reinforcement scheme was proposed. This study has reference significance for similar tunnel expansion and reconstruction projects. 2019年 - 第1卷第3期高源,等:北山隧道式大跨度地下四季滑雪场围岩稳定性研究 \=-

Key words： refinement investigation large-span tunnel evaluation of rock mass quality rock mass partition stability of surrounding rock

Received: 01 July 2019 Published: 13 November 2019

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GAO Yuan,YANG Tianhong,XIN Quanming, et al. Study on stability of surrounding rock in large-span underground tunnel of Beishan four seasons ski resort[J]. Hazard Control in Tunnelling and Underground Engineering, 2019, 1(3): 109-115.

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http://tunnel.sdujournals.com/EN/ OR http://tunnel.sdujournals.com/EN/Y2019/V1/I3/109

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