自走铁矿多元地压监测系统的构建与灾害预警模型研究

发布时间：2018-04-06 22:04

本文选题：地压灾害　切入点：多元监测　出处：《昆明理工大学》2017年硕士论文

【摘要】：本文在查阅大量金属矿山地压监测系统和监测数据预警技术相关文献资料的基础上,依托自主构建的自走铁矿多元地压监测系统和基于模糊数学理论的多因素综合预警模型,对系统在自走铁矿监测到的岩体位移和声发射数据进行统计。分析了布置在自走铁矿1580和1530中段五个监测点的声发射数据变化特点和规律,并得出相关结论。最后通过取点对综合预警模型的可靠性进行了验证分析。主要研究内容如下:1、分析矿山的基本特点,基于岩体破坏理论的地压灾害类型、以及表现形式,对矿山生产过程中的地压灾害以及岩体破坏机制进行研究。2、根据矿山监测环境特点进行地压灾害监测预警系统的设计、研发、构建、现场调试和安装,保证采集到的现场声发射信号真实、连续、可靠,依据监测系统布置方式布设井下各中段监测点,完成该矿山工程岩体监测系统的总体构建。3、对系统布置在1580和1530两个中段的位移、声发射数据进行统计,设计各自单因素预警阈值,依据矿山实际生产情况对声发射事件率、能率、△N/△T和AE/△T的特点和变化规律进行分析。4、根据模糊数学理论,考虑位移和声发射两个因素,建立各单因素的模糊隶属度函数,设计岩体位移、声发射参数预警阈值,构建地压灾害综合预警模型,并据此设计的算法,对预警模型的可靠性进行验证。
[Abstract]:On the basis of consulting a large number of documents about ground pressure monitoring system and monitoring data early warning technology of metal mines, this paper builds a multivariate ground pressure monitoring system based on self-moving iron ore and a multi-factor comprehensive early-warning model based on fuzzy mathematics theory.The displacement and acoustic emission data of rock mass monitored by the system in self-moving iron ore are statistically analyzed.The variation characteristics and rules of acoustic emission data at five monitoring points in the 1580 and 1530 sections of Zetao Iron Mine are analyzed and the relevant conclusions are drawn.Finally, the reliability of the comprehensive early warning model is verified and analyzed by taking points.The main research contents are as follows: 1. Analyzing the basic characteristics of the mine, the types of ground pressure disasters based on rock mass failure theory, and their forms of expression.The mechanism of ground pressure disaster and rock mass damage in mine production process is studied. According to the characteristics of mine monitoring environment, the design, research and development, construction, field debugging and installation of ground pressure disaster monitoring and warning system are carried out.To ensure that the collected acoustic emission signals are true, continuous and reliable. According to the arrangement of the monitoring system, the monitoring points in the middle section of the underground are set up.The overall construction of the rock mass monitoring system of the mine engineering is completed. The displacement and acoustic emission data of the system arranged in the two middle sections of 1580 and 1530 are analyzed, and the single factor warning threshold is designed, and the incident rate of acoustic emission is calculated according to the actual production situation of the mine.According to the theory of fuzzy mathematics, considering the two factors of displacement and acoustic emission, the fuzzy membership function of each single factor is established, and the displacement of rock mass is designed.The acoustic emission parameter early warning threshold is used to construct a comprehensive early warning model of ground pressure disaster and the algorithm is designed to verify the reliability of the early warning model.
【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】：TD76

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