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To acquire a knowledge of the stress-strain state in the process of mining beforehand,a numerical method was used to simulate the stoping process of access mechanized panel mining in No. 3 ore-body of Tonglushan mine;and for the sake of obtaining better stability, the optimal panel dimension and access stoping sequence were researched. The results show that the integral stability of the mechanized panel of No. 3 ore-body is passable in the process of winning at full level height; the stability of panel tends to be worse gradually with continuous increasing of panel width; and the better width of access panel in No. 3 ore-body is less than 52 m. It is indicated that 3D elasto-plastic finite element method can make a satisfactory study of numerical simulation on the panel stability and its structural dimension in the test for the upward access mechanized-panel mining. The results of the theoretical calculation and analysis accord with the actual situation from the field ground pressure monitoring. 相似文献
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大厂91号矿体岩石力学参数工程处理 总被引:5,自引:0,他引:5
由于岩体中的结构弱面的存在,以及地下水等因素的影响,致使岩体力学参数与相应的岩石试块力学参数之间存在的很大的差别。现采用M.Gergi、Z.T.Bieniawski和Hoek-Brown等多种方法对广西大厂91号矿体的岩石参数进行工程处理,最后给出了相应的岩体力学参数推荐值。 相似文献
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