普朗铜矿地下采场人—机—环境可靠性研究

发布时间：2018-06-18 10:48

本文选题：可靠性 + 人—机—环境　；参考：《昆明理工大学》2017年硕士论文

【摘要】：近年来金属矿山事故总量虽呈下降趋势,但仍有因人员、机器设备、作业环境、地质环境因素导致的较大事故。本文以教育部博士点基金“地下难采矿体回采工艺系统可靠性研究项目”为基础,结合普朗铜矿的生产实际,对普朗铜矿首采阶段(3720m水平)、深部接续中段(3540m水平)的采场人—机—环境进行可靠性研究,为矿山的安全生产提供理论依据,主要内容包括:(1)综合使用模糊数学、层次分析法等,对采场人—机器—作业环境进行模糊可靠性研究,先建立评价因子集,之后确定各因子隶属度以及因子权重集,最后用马尔科夫模型计算各自的可靠性指标,用模糊语言描述其可靠状态。(2)采集不同种类岩石,在实验室内得到岩石力学参数,代入Rocklab进行强度折减后作为岩体力学参数,输入采场的FLAC3D数值模型中,把岩体力学参数、采场结构参数作为自变量进行多元线性回归建立极限方程,由于受计算机条件限制,不可能进行数以千计次的数值模拟,因此设计正交试验后,利用Monte Carlo思想,运用Matlab对极限方程进行数千次随机试验,得地质环境的可靠性指标,并以可靠度为基础判定其可靠状态。(3)经过分析计算,得到采场人—机—环境可靠性后,对数据进行综合整理,将其假设为可修复的逻辑串联系统,用模糊语言和可靠性指标评价采场人—机—环境的综合可靠性。
[Abstract]:Although the total number of accidents in metal mines is decreasing in recent years, there are still large accidents caused by personnel, machinery and equipment, working environment and geological environment. This paper is based on the doctoral Program Foundation of the Ministry of Education, "Research Project on Reliability of Mining process system of Underground Refractory bodies", combined with the production practice of Plang Copper Mine. This paper studies the reliability of the stope man-machine-environment in the first mining stage of Plang Copper Mine at 3720m level and the depth of 3540m level. It provides a theoretical basis for the safe production of the mine, the main contents of which include the comprehensive use of fuzzy mathematics. The fuzzy reliability of the stope human-machine-working environment is studied by AHP, the evaluation factor set is established, the membership degree and the weight set of each factor are determined, and the reliability indexes are calculated by Markov model. Using fuzzy language to describe the reliable state of rock, the rock mechanics parameters are obtained in the laboratory. The rock mechanics parameters are input into the FLAC3D numerical model of the stope and the rock mechanics parameters are input into the FLAC3D numerical model of the stope after the Rocklab is replaced by the Rocklab to reduce the strength of the rock mass. The structural parameters of stope are used as independent variables to establish limit equation by multivariate linear regression. Due to the limitation of computer, it is impossible to carry out thousands of numerical simulations. Therefore, after designing orthogonal test, Monte Carlo method is used. By using Matlab to carry out thousands of random tests on limit equation, the reliability index of geological environment is obtained, and its reliability state is determined on the basis of reliability. After analysis and calculation, the reliability of stope man-machine-environment is obtained. The data were synthesized and sorted, and the data were assumed to be a repairable logical series system. The comprehensive reliability of the stope human-machine-environment was evaluated by fuzzy language and reliability index.
【学位授予单位】：昆明理工大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TD862.1

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