Abstract：The crack of the mining-disturbed rock strata affects the law of subsidence directly. But the existence of original joints in rock mass makes the crack complicated，so that the determination of subsidence range in rock mass becomes more difficult. The effects of original joints on the expanding law of crack of mining-disturbed rock strata，the range of the crack，the distribution of crack and effect of the subsidence range in rock mass are systematically studied. The influence of original joints on the crack of mining disturbed rock strata is analysed. The formula of the maximum tangent stress nearby original joints，the theory evidence to define the range of subsidence in rock mass and the mechanics condition of the crack of mining-disturbed rock strata are given. Four stimulated material models are made，which contains original joints with different distribution. The study result is well verified with the experimental data.
于广明1，2 张春会1 赵建锋1，2. 初始节理对岩体内部沉陷范围的影响研究与实验验证*[J]. 岩石力学与工程学报, 2002, 21(10): 1478-1482.
Yu Guangming1，2，Zhang Chunhui1，Zhao Jianfeng1，2. RESEARCH AND EXAMINATION-VALIDATION OF EFFECT OF ORIGINAL JOINTS ON SUBSIDENCE RANGE IN ROCK MASS. , 2002, 21(10): 1478-1482.
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2002, Vol. 21 
