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| JIAZHUQING TUNNEL AND THE ROCK MECHANICS，PART I:APPLICA- TION OF COULOMB'S LATERAL PRESSURE THEORY AND MOHR'S STRESS CIRCLE |
| FU Hua-xing |
| China Railway Fifth Engineering Bureau (Group) Co. |
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Abstract The Jiazhuqing Tunnel in Nanning-Kunming Railway is a kind of strong pressured tunnel which was the first tunnel designed and constructed by our country. During its design and construction，the principles of rock machanics were reflected fully for guiding the design and construction，so as to obtain successful effect. The whole process for applying several important formulas of rock mechanics are described in this paper，and are expounded through the practical construction works of the Jiazhuqing Tunnel. Some traditional theories are described and evaluated also，and there arc new ideas on application of the rock mechanics. It provides reference for the popularization of rock mechanics on the engineering applications.
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Received: 01 December 2001
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2002, Vol. 19 
