【摘要】：東平湖蓄滯洪區(qū)是黃河下游重要的蓄滯洪工程之一,對(duì)黃河防洪至關(guān)重要。泰西煤礦位于東平湖蓄滯洪區(qū)內(nèi),煤礦開采將對(duì)蓄滯洪區(qū)及相關(guān)水利工程安全運(yùn)行造成一定的危害。本文以此為背景,利用有限差分法對(duì)煤層開采引起的地表沉陷進(jìn)行預(yù)測(cè),設(shè)計(jì)四種開采邊界,通過對(duì)比選擇既能保證水利工程的安全運(yùn)行,又能最大限度開采煤炭資源的最優(yōu)方案。 (1)建立礦區(qū)三維數(shù)值模擬計(jì)算模型 根據(jù)泰西煤礦所處區(qū)域的地質(zhì)構(gòu)造特征,利用課題組編制的ROCKModel程序中的映射建模模塊建立三維數(shù)值模擬計(jì)算模型。 (2)礦區(qū)巖體力學(xué)參數(shù)反演 以地表最大下沉系數(shù)作為試驗(yàn)指標(biāo),以彈性模量、泊松比、粘聚力、內(nèi)摩擦角為反演因素,進(jìn)行正交試驗(yàn)設(shè)計(jì),安排4水平4因素試驗(yàn)方案。利用F1AC3D4.0,在保證開采方法相同的條件下,針對(duì)正交試驗(yàn)表中列出的所有參數(shù)組合方案進(jìn)行開采沉陷數(shù)值模擬計(jì)算。對(duì)計(jì)算結(jié)果進(jìn)行極差分析,確定試驗(yàn)指標(biāo)隨試驗(yàn)因素的變化規(guī)律；并利用方差分析方法,分析各試驗(yàn)因素對(duì)試驗(yàn)指標(biāo)影響的顯著性。根據(jù)極差分析與方差分析的結(jié)果,利用綜合權(quán)衡方法對(duì)巖體的力學(xué)參數(shù)進(jìn)行優(yōu)選。 (3)對(duì)開采沉陷規(guī)律進(jìn)行數(shù)值模擬預(yù)測(cè) 根據(jù)煤層分布特征及礦區(qū)周邊水利工程的布局,設(shè)計(jì)四種不同開采邊界,運(yùn)用F1AC3D4.0進(jìn)行了開采沉陷數(shù)值模擬計(jì)算,獲得了不同方案下地表移動(dòng)規(guī)律。 (4)進(jìn)行開采沉陷對(duì)周邊水利工程的影響評(píng)價(jià) 在此基礎(chǔ)上,根據(jù)《建筑物、水體、鐵路及主要井巷煤柱留設(shè)與壓煤開采規(guī)程》進(jìn)行不同開采方案下地表移動(dòng)對(duì)周邊水利工程的影響評(píng)價(jià),從而確定既不影響水利工程又能開采更多資源的方案。
[Abstract]:Dongping Lake flood storage and detention area is one of the important flood storage projects in the lower reaches of the Yellow River and is very important for flood control of the Yellow River. Taixi coal mine is located in Dongping Lake flood storage and detention area, coal mine mining will cause certain harm to the safe operation of flood storage and detention area and related water conservancy projects. In this paper, the finite difference method is used to predict the surface subsidence caused by coal seam mining, and four kinds of mining boundaries are designed to ensure the safe operation of water conservancy projects. And can maximize the mining of coal resources of the optimal scheme. The main contents of this thesis are as follows: (1) the 3D numerical simulation model of mining area is established according to the geological structural characteristics of the area in Taixi coal mine, and the 3D numerical simulation model is established by using the mapping modeling module in the ROCKModel program compiled by our team. (2) using the maximum subsidence coefficient as the test index and elastic modulus, Poisson's ratio, cohesive force and internal friction angle as the inversion factors, the orthogonal test design is carried out for the inversion of the rock mass mechanical parameters in the mining area. Arrange 4-level 4-factor test scheme. Using F1AC3D4.0, under the same condition that the mining method is the same, the numerical simulation calculation of mining subsidence is carried out according to all the parameter combination schemes listed in the orthogonal test table. The variation rule of test indexes with test factors was determined by the range analysis of the calculated results, and the significance of the influence of each test factor on the test indexes was analyzed by using the method of variance analysis. According to the results of range analysis and variance analysis, the mechanical parameters of rock mass are optimized by means of comprehensive balance method. (3) according to the distribution characteristics of coal seams and the distribution of water conservancy projects around the mining area, four different mining boundaries are designed by numerical simulation prediction of mining subsidence law, and the numerical simulation calculation of mining subsidence is carried out by using F1AC3D4.0. The law of surface movement under different schemes is obtained. (4) to evaluate the impact of mining subsidence on the surrounding water conservancy projects, on the basis of which, according to < buildings, water bodies, In order to evaluate the influence of surface movement on the surrounding water conservancy projects under different mining schemes, the regulations for coal pillar retention and coal compression mining in railway and main roadway are carried out, so as to determine the scheme which will not affect the water conservancy project but also can exploit more resources.
【學(xué)位授予單位】：中國(guó)地質(zhì)大學(xué)（北京）
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2014
【分類號(hào)】：TV22;P642.26

【參考文獻(xiàn)】

相關(guān)期刊論文 前10條

1 趙衛(wèi)強(qiáng);孟晴;;國(guó)內(nèi)外礦山開采沉陷研究的歷史及發(fā)展趨勢(shì)[J];北京工業(yè)職業(yè)技術(shù)學(xué)院學(xué)報(bào);2010年01期

2 李靜濤;盧毅;焦步青;;煤礦開采巖層與地表變形數(shù)值模擬分析[J];測(cè)繪科學(xué);2012年02期

3 吳侃,靳建明,戴仔強(qiáng);概率積分法預(yù)計(jì)下沉量的改進(jìn)[J];遼寧工程技術(shù)大學(xué)學(xué)報(bào);2003年01期

4 孫超;薄景山;孫有為;;采空區(qū)沉陷研究歷史及現(xiàn)狀[J];防災(zāi)科技學(xué)院學(xué)報(bào);2008年04期

5 劉瑾;張觀瑞;;煤礦開采引起覆巖移動(dòng)變形規(guī)律的數(shù)值模擬研究[J];華北科技學(xué)院學(xué)報(bào);2007年02期

6 趙小平;;煤礦開采引起覆巖移動(dòng)變形規(guī)律的數(shù)值模擬研究[J];華北科技學(xué)院學(xué)報(bào);2008年03期

7 陶連金,高德民,賀啟印,王文書,孔亮,李云德;回采巷道錨桿支護(hù)的FLAC分析[J];黑龍江礦業(yè)學(xué)院學(xué)報(bào);1995年01期

8 陶連金,李鳳義,張東日;綜采放頂煤的離散元模擬研究[J];黑龍江礦業(yè)學(xué)院學(xué)報(bào);1996年01期

9 郭增長(zhǎng);應(yīng)用有限單元法研究條帶煤柱的穩(wěn)定性[J];焦作礦業(yè)學(xué)院學(xué)報(bào);1994年02期

10 劉葉杰,常江,崔希民,顧和和;開采沉陷預(yù)計(jì)的樣條概率積分法探討[J];江蘇煤炭;1992年01期

，

本文編號(hào)：2462914