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| INVESTIGATION AND APPLICATION OF CHOOSING BRACKET ON THE STOPING EXCAVATION |
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Received:May 30, 2007
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| DOI： |
| KeyWord:surrounding rock; bracket ; field application |
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LI Chun-jian1,ZHANG Yong-jiang2,HUANG Chang-guo2(1.Mining Engineering Company,Huainan Mining Industry Group,Huainan 232001,Anhui,China,2.Chongqing Branch,China Coal Research Institute,Chongqing 400037,China)
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| Abstract: |
| This article starts with the bracket distortion destructive, adopts the method of theory and locale experiment; bases on the surface variety speed and measure of top and soleplate and two side surrounding rock and so on, chooses the form of bracket and has a good effect. |
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