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脉钨矿床岩体移动的特征主要表现为岩移机制受结构弱面制约,移动形式与岩体结构密切相关。对于呈块裂结构的岩体,移动形式表现为碎块联动,移动曲线光滑、连续;对于呈块裂结构的岩体,移动形式表现为块体差移,移动曲线呈不规则的台阶状。局部的岩体失稳崩塌与岩移速度的变化有关,而与累积移动量的大小无明显关系。本文针对脉钨矿床的特点,提出了相应的岩移观测与成果分析的方法,这些方法在一些钨矿中已得到了成功的应用。
The characteristics of rock mass movement in the vein tungsten deposit are mainly manifested by the fact that the rock movement mechanism is restricted by the structural weakness, and the moving form is closely related to the rock mass structure. For rock masses with block-cracked structure, the moving forms are block interlocking and the moving curves are smooth and continuous. For the rock mass with block-fractured structure, the moving forms are block-like displacements and the moving curves are irregularly stepped. The local collapse of rock mass is related to the change of rock migration velocity, but not to the magnitude of cumulative migration. According to the characteristics of the vein tungsten deposit, this paper puts forward the corresponding methods of rock movement observation and result analysis. These methods have been successfully applied in some tungsten mines.