云锡松矿10-6矿体试验采场围岩物理力学参数研究
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摘要
岩石(体)的物理参数和力学参数具有随机性和变异性的特点,当前对岩石(体)参数的研究主要是通过室内实验结合经验而确定的。在大量室内试验基础上,基于对工程岩石(体)参数概率分布规律的分析,研究了云锡松矿10-6矿体试验采场大理岩物理、力学参数的统计特征,研究表明:试验采场大理岩的物理、力学性质参数具有随机性和变异性,实验数据具有明显的统计规律性,因此,可以采用各参数概率分布规律确定试验采场较为合理的岩石(体)物理、力学参数,为确定合理的开采方式提供依据。
The physical parameters and mechanical parameters of rock (body) are characterized by randomness and variability. The current research on rock's parameters is made mainly through laboratory experiments and experience. Based on a great deal of lab tests and the analysis of the probability distribution law of engineering rock (body), the statistics characteristics of the physical and mechanical parameters of marble in the testing stope of No. 10-6 ore body in Yunan Tin Mine were studied. The results show that these parameters of marble are random and variable, and their testing data have evident statistic regularity. Therefore, the probability distribution law of each parameter can be used to rationally determine the physical parameters and mechanical parameters of the rock (body) in the testing stope, so as to provide a basis for determining a rational mining mode for the ore body.
The physical parameters and mechanical parameters of rock (body) are characterized by randomness and variability. The current research on rock's parameters is made mainly through laboratory experiments and experience. Based on a great deal of lab tests and the analysis of the probability distribution law of engineering rock (body), the statistics characteristics of the physical and mechanical parameters of marble in the testing stope of No. 10-6 ore body in Yunan Tin Mine were studied. The results show that these parameters of marble are random and variable, and their testing data have evident statistic regularity. Therefore, the probability distribution law of each parameter can be used to rationally determine the physical parameters and mechanical parameters of the rock (body) in the testing stope, so as to provide a basis for determining a rational mining mode for the ore body.
引文
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[2]Hocomb D J.General theory of the Kaiser effect[J].Int.J.Rock Mech.Sci.&Geomech Abstr.,1993,30(7):929-935.
[3]宋战平.岩土工程中的混沌、分形理论及其应用研究[D].昆明:昆明理工大学,2000.
[4]尹贤刚,李庶林.声发射技术在岩土工程中的应用[J].采矿技术,2002,4(2):39-42.
[5]秦四清,李造鼎,张倬元,等.岩石声发射技术概论[M].成都:西南交通大学出版社,1993.
[6]许昭永.单轴实验时的加载速度与声发射特征[J].地震研究,1985,8(6):702-705.
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