發(fā)布時(shí)間：2018-05-30 19:41

  本文選題：盤區(qū)開采 + 系統(tǒng)動態(tài)可靠性��； 參考：《南華大學(xué)》2015年碩士論文

【摘要】：為分析盤區(qū)開采過程采場穩(wěn)定性的動態(tài)變化規(guī)律,建立了基于MCS-BP-GTS方法的動態(tài)可靠性分析方法,以云南省某鉛鋅礦為研究對象,開展了應(yīng)用研究,主要研究內(nèi)容如下:(1)基于MCS-BP-GTS方法的動態(tài)可靠度計(jì)算方法研究。采用Midas/GTS有限元軟件建立了礦山開采模型,根據(jù)礦山礦巖影響因素的分布特征進(jìn)行MCS(Monte-Carlo)抽樣與計(jì)算,應(yīng)用MATLAB平臺的BP人工神經(jīng)網(wǎng)絡(luò)進(jìn)行大量的數(shù)據(jù)處理,以滿足可靠度計(jì)算對數(shù)據(jù)量的要求,從而建立基于MCS-BP-GTS方法的系統(tǒng)動態(tài)可靠性研究方法。(2)基于MCS-BP-GTS的上向水平分層充填采礦法礦房動態(tài)可靠性研究。根據(jù)上向水平分層充填采礦法開采過程中礦房的失穩(wěn)現(xiàn)象及有限元模擬結(jié)果,提取礦房開采過程的特征點(diǎn)作為可靠度指標(biāo)計(jì)算對象,研究礦房可靠度隨礦體開采步長的動態(tài)變化規(guī)律,并依據(jù)動態(tài)可靠度優(yōu)化礦房設(shè)計(jì)參數(shù)。(3)基于MCS-BP-GTS的上向水平分層充填采礦法礦柱動態(tài)可靠性研究。根據(jù)上向水平分層充填采礦法開采過程中的礦柱失穩(wěn)現(xiàn)象及有限元模擬結(jié)果,提取開采過程礦柱的特征點(diǎn)作為可靠度指標(biāo)計(jì)算對象,研究礦柱可靠度隨礦體開采步長的動態(tài)變化規(guī)律,并依據(jù)動態(tài)可靠度優(yōu)化礦柱設(shè)計(jì)參數(shù)。(4)基于MCS-BP-GTS方法的盤區(qū)系統(tǒng)動態(tài)可靠性研究。根據(jù)盤區(qū)開采過程中礦房和礦柱失穩(wěn)規(guī)律,分析盤區(qū)系統(tǒng)中礦房和礦柱的串并聯(lián)關(guān)系,建立基于MCS-BP-GTS方法的盤區(qū)系統(tǒng)動態(tài)可靠度計(jì)算方法。并依據(jù)盤區(qū)系統(tǒng)動態(tài)可靠度優(yōu)化盤區(qū)設(shè)計(jì)參數(shù)和盤區(qū)開采順序。本文建立的基于MCS-BP-GTS方法的盤區(qū)系統(tǒng)動態(tài)可靠度計(jì)算方法,較好地解決了盤區(qū)開采穩(wěn)定性分析的復(fù)雜系統(tǒng)計(jì)算難以實(shí)現(xiàn)的問題,并依據(jù)盤區(qū)系統(tǒng)動態(tài)可靠度變化規(guī)律,優(yōu)化了云南某鉛鋅礦盤區(qū)設(shè)計(jì)參數(shù)和盤區(qū)開采順序。本課題的研究有一定的理論意義和實(shí)用價(jià)值。
[Abstract]:In order to analyze the dynamic variation rule of stope stability in the mining process, a dynamic reliability analysis method based on MCS-BP-GTS method was established, and a lead-zinc mine in Yunnan Province was used as the research object. The main contents are as follows: (1) dynamic reliability calculation method based on MCS-BP-GTS method. The mining model is established by using Midas/GTS finite element software. According to the distribution characteristics of influencing factors of mine rock, the sampling and calculation of MCSM Monte-Carlov are carried out, and a large number of data are processed by BP artificial neural network based on MATLAB platform. In order to meet the requirement of reliability calculation, the dynamic reliability research method of system dynamic reliability based on MCS-BP-GTS method is established. The dynamic reliability research of mine house with upward horizontal stratified filling mining method based on MCS-BP-GTS is established. According to the instability of mine house and the result of finite element simulation in the mining process of upward horizontal stratified filling mining, the characteristic points of mining process of mine house are extracted as the calculation object of reliability index. This paper studies the dynamic variation law of mine house reliability with the mining step of ore body, and optimizes the design parameter of mine house according to dynamic reliability. (3) based on MCS-BP-GTS, the research on dynamic reliability of pillar in upward horizontal stratified filling mining method is carried out. According to the instability phenomenon of pillar and the result of finite element simulation in the mining process of upward horizontal stratified filling mining, the characteristic points of pillar in mining process are extracted as the calculation object of reliability index. The dynamic variation of pillar reliability with the mining step of ore body is studied, and the dynamic reliability of disk system based on MCS-BP-GTS method is optimized according to the dynamic reliability of pillar design parameter. According to the instability law of mine house and pillar in the process of mining, the series-parallel relationship between mine house and pillar in disk system is analyzed, and the dynamic reliability calculation method of disk system based on MCS-BP-GTS method is established. According to the dynamic reliability of the disk system, the design parameters and mining sequence are optimized. The dynamic reliability calculation method of disk system based on MCS-BP-GTS method is established in this paper, which solves the problem that the complex system calculation of disk mining stability analysis is difficult to realize, and according to the variation rule of dynamic reliability of disk system. The design parameters and mining sequence of a lead-zinc mine in Yunnan are optimized. The research of this subject has certain theoretical significance and practical value.
【學(xué)位授予單位】：南華大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2015
【分類號】：TD853.34

【參考文獻(xiàn)】

相關(guān)期刊論文 前2條

1 貢金鑫,仲偉秋,趙國藩;工程結(jié)構(gòu)可靠性基本理論的發(fā)展與應(yīng)用(1)[J];建筑結(jié)構(gòu)學(xué)報(bào);2002年04期

2 趙尚毅,鄭穎人,時(shí)衛(wèi)民,王敬林;用有限元強(qiáng)度折減法求邊坡穩(wěn)定安全系數(shù)[J];巖土工程學(xué)報(bào);2002年03期

，

本文編號：1956535