Application Research On Bolts and Nets Supporting in High-stress Ruptured Rock-mass Tunnel
Received:January 08, 2013  Revised:January 29, 2013
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KeyWord:bolts
           
AuthorInstitution
Ma Ding [sub_s] 西南科技大学环境与资源学院
[sub_e]Su Huayou[sub_s] 四川省长城安全事务有限公司
[sub_e] Lu Yanglong[sub_s] 西南科技大学环境与资源学院
[sub_e] Ye Qing[sub_s] 四川省凉山彝族自治州锦宁矿业有限公司
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Abstract:
      This assay mainly discusses researches on bolts and nets supporting and its application in high-stress ruptured rock-mass tunnel. Reasonable supporting parameters and technology are got by combining the practical situations of the mine. In addition the testing stations are set up to monitor and verify effects in time after the tunnel has been supported. The analysis on the monitoring data of the deformation of the surrounding rocks indicates that the deformation curves of the crown settlement and perimeter displacement have obvious stage characteristics. At the same time, the nonlinear regression analysis on the deformation curves of surrounding rocks obtains the nonlinear regression equation of "growth models" of the deformation of the surrounding rocks. This nonlinear regression equation provides the basis to forecast the deformation rules and final deformation of the surrounding rocks .The supporting problems have been solved efficiently by bolts and nets supporting, which can be also the similar situation’s reference.
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