【摘要】：為解決恒源煤礦開采深度逐漸增加,帶來的地應(yīng)力大、圍巖破碎等問題,本文綜合分析了恒源煤礦6條回采巷道、4條準(zhǔn)備巷道和1條開拓巷道基本信息及巷道圍巖變形原因并運(yùn)用模糊聚類和巷道頂板、底板、兩幫的綜合強(qiáng)度σD、σd、σs與采動(dòng)應(yīng)力的比值Si按一定權(quán)值乘積之和的數(shù)學(xué)方法分別對(duì)恒源煤礦回采巷道及準(zhǔn)備巷道圍巖穩(wěn)定性進(jìn)行分類,并在回采巷道圍巖穩(wěn)定性分類的基礎(chǔ)上提出了不同分類巷道的支護(hù)控制原則,在準(zhǔn)備巷道圍巖穩(wěn)定性分類的基礎(chǔ)上,進(jìn)行了次分類和亞分類。 對(duì)恒源煤礦典型回采巷道、準(zhǔn)備巷道支護(hù)參數(shù)利用數(shù)值模擬進(jìn)行了優(yōu)化分析。結(jié)果表明：(1)通過增加支護(hù)體的支護(hù)密度和間排距,可以有效的增加巷道的穩(wěn)定性并且較為有效的控制圍巖變形量。風(fēng)巷頂?shù)装蹇偽灰屏繙p少了45%,機(jī)巷頂?shù)装蹇偽灰屏繙p少了47%。(2)巷道頂?shù)装遄冃瘟恳笥趦蓭鸵平�。�?yīng)力升高區(qū)應(yīng)力集中系數(shù)為2.36-2.78。(3)隨著工作面推進(jìn),巷道的頂?shù)装逦灰屏恐饾u增大,在原有支護(hù)條件下,加強(qiáng)支護(hù)強(qiáng)度,可以有效的減少頂?shù)装逡平亢蛢蓭鸵平�。增加支護(hù)強(qiáng)度后,頂?shù)装逦灰屏繙p少了51%。 將以上研究成果進(jìn)行了工業(yè)性實(shí)驗(yàn),支護(hù)效果良好,圍巖得到有效控制,滿足安全生產(chǎn)要求�？蓪�(duì)恒源煤礦相關(guān)地質(zhì)條件下巷道支護(hù)設(shè)計(jì)提供有益參考。
[Abstract]:In order to solve the problem that the mining depth of Hengyuan coal mine increases gradually, the ground stress is large, the surrounding rock is broken and so on. In this paper, the basic information of 6 mining roadways in Hengyuan coal mine, 4 preparatory roadways and 1 open roadway, and the reasons of surrounding rock deformation of roadway are comprehensively analyzed, and the fuzzy clustering and roadway roof and floor are used. The comprehensive strength 蟽 D, 蟽 d, 蟽 s and the ratio of mining stress to mining stress of the two sides Si are classified according to the mathematical method of the sum of certain weights, respectively, for the stability of the roadway and the surrounding rock of the preparatory roadway in Hengyuan Coal Mine. Based on the classification of the stability of the surrounding rock in the mining roadway, the supporting control principle of the roadway with different classification is put forward. On the basis of preparing the classification of the stability of the surrounding rock of the roadway, the sub-classification and sub-classification are carried out. This paper optimizes and analyzes the support parameters of the typical mining roadway in Hengyuan Coal Mine by numerical simulation. The results are as follows: (1) the stability of roadway can be effectively increased and the deformation of surrounding rock can be controlled effectively by increasing the support density and spacing. The total displacement of the roof and bottom plate of the wind tunnel is reduced by 45%, and the total displacement of the roof and floor plate of the machine roadway is reduced by 47%. (2) the deformation of the roof and floor plate of the roadway is larger than that of the two sides. The stress concentration factor is 2.36-2.78. (3) with the advance of the working face, the displacement of roadway roof and floor gradually increases. Under the original support condition, strengthening the support strength can effectively reduce the roof and floor movement and the two sides. After increasing the support strength, the displacement of roof and floor reduces 51%. The industrial experiments show that the supporting effect is good and the surrounding rock is effectively controlled to meet the requirements of safe production. It can provide useful reference for roadway support design under related geological conditions of Hengyuan Coal Mine.
【學(xué)位授予單位】：安徽理工大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2015
【分類號(hào)】：TD322.4

【參考文獻(xiàn)】

相關(guān)期刊論文 前10條

1 王國(guó)欣,王旭東,肖樹芳;廣義RQD在巖體各向異性中的應(yīng)用研究[J];吉林大學(xué)學(xué)報(bào)(地球科學(xué)版);2002年03期

2 蔣金泉,韓繼勝,馮增強(qiáng);跨采巷道圍巖結(jié)構(gòu)穩(wěn)定性亞分類及其應(yīng)用[J];工程地質(zhì)學(xué)報(bào);1999年04期

3 周喜德;巖體中彈性波速度及其應(yīng)用研究[J];貴州水力發(fā)電;1999年02期

4 馬世志,張茂林,靖洪文,陳坤福;巷道圍巖穩(wěn)定性分類方法評(píng)述[J];建井技術(shù);2004年05期

5 陳清運(yùn);蔡嗣經(jīng);明世祥;張京濤;;采礦動(dòng)壓對(duì)采場(chǎng)巷道穩(wěn)定性影響的研究[J];金屬礦山;2006年08期

6 侯朝炯;國(guó)外受采動(dòng)影響巷道穩(wěn)定性分類及支護(hù)方法選擇[J];礦山壓力;1985年01期

7 張忠溫,馮學(xué)武;回采巷道圍巖穩(wěn)定性分類及支護(hù)型式確定[J];礦山壓力與頂板管理;2002年02期

8 陳坤福;靖洪文;韓立軍;;基于實(shí)測(cè)地應(yīng)力的巷道圍巖分類[J];采礦與安全工程學(xué)報(bào);2007年03期

9 劉傳孝,蔣金泉,王春秋,楊永杰;準(zhǔn)備巷道圍巖結(jié)構(gòu)穩(wěn)定性分析[J];礦山壓力與頂板管理;1997年Z1期

10 刑文艷;郭文卿;;影響深部巷道穩(wěn)定性因素分析[J];露天采礦技術(shù);2008年05期

，

本文編號(hào)：2223929