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| THE SURROUNDING ROCK STRESS IN SHALLOW UNDERGROUND OPENINGS |
| BI Ji-hong, ZHONG Jian-hui, CONG Rong |
| Dept, of Civil Engineering, Tianjin University |
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Abstract The principle of finite-element method is used to analyses of the underground openings of shallow embedded depth. And some numerical tests were carried out with ANSYS program. The affect of embedded depth and the surround?ing rock stress of underground openings in sidehill were analyzed respectively. The results are compared with that coming from simplified formulas. Some knowledge was achieved according to the calculated results of some examples. At the same time, it is pointed out that some problems should be considered in practice.
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Received: 11 March 2004
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2004, Vol. 21 
