本文關(guān)鍵詞： 千米深井沿空留巷 礦壓顯現(xiàn)特征 支護阻力 巷旁支護 巷內(nèi)支護　出處：《中國礦業(yè)大學(xué)》2015年碩士論文　論文類型：學(xué)位論文

【摘要】：以三河尖礦為研究對象,運用數(shù)值模擬、理論計算作為研究手段,并與現(xiàn)場實踐相結(jié)合,研究了三河尖礦千米深井沿空留巷礦壓顯現(xiàn)特征,并針對性的提出巷旁支護參數(shù)、巷內(nèi)支護參數(shù)、加強支護參數(shù)等,主要得到以下結(jié)論:1、千米深井沿空留巷礦壓顯現(xiàn)特征:1)隨著埋深的增加,沿空留巷圍巖變形量增大;2)隨著埋深的增加,沿空留巷圍巖應(yīng)力增大。頂板應(yīng)力及巷旁支護體垂直應(yīng)力增加幅度隨著埋深的增加變小;3)隨著埋深的增加,巷道圍巖塑性區(qū)范圍增大;4)千米深井沿空留巷工作面后方圍巖變形速度較淺部沿空留巷大得多,且千米深井沿空留巷工作面后方頂板趨于穩(wěn)定需要的時間更長。2、確定采用高水材料構(gòu)筑巷旁支護體進行沿空留巷。并根據(jù)高水材料巷旁支護體特點,得到巷旁支護技術(shù)。在此基礎(chǔ)上,通過理論計算、數(shù)值模擬,確定巷旁支護體參數(shù)。3、運用數(shù)值模擬確定了三河尖礦千米深井沿空留巷巷旁支護體加固參數(shù),并在此基礎(chǔ)上分析巷旁支護體加固機理:高強螺紋鋼對拉錨桿配合鋼筋梯子梁組成的加固結(jié)構(gòu),有效提升了巷旁支護體自由面圍壓,增強了其抗變形能力。4、分析千米深井沿空留巷巷內(nèi)支護機理,確定巷內(nèi)支護技術(shù),并結(jié)合數(shù)值模擬確定巷內(nèi)支護參數(shù)、巷旁支護體上方頂板加強支護參數(shù)及工作面后方單體液壓支柱加強支護參數(shù)。上述結(jié)論在三河尖礦7136工作面運輸巷沿空留巷成功獲得驗證。
[Abstract]:Taking Sanhejian mine as the research object, using numerical simulation, theoretical calculation as the research means, and combining with the field practice, the characteristics of rock pressure behavior along the goaf roadway of the kilometer deep well in Sanhejian mine are studied. And proposed the roadway side support parameter, the roadway support parameter, strengthens the support parameter and so on, mainly obtains the following conclusion: 1, the kilometer deep well along the gob remaining roadway rock pressure behavior characteristic: 1) with the buried depth increases. The deformation of surrounding rock along goaf roadway increases; 2) with the increase of burying depth, the surrounding rock stress increases. The roof stress and vertical stress increase with the increase of buried depth. 3) with the increase of buried depth, the range of plastic zone of roadway surrounding rock increases; 4) the deformation speed of surrounding rock behind the face is much larger than that of the shallow side roadway, and the time required for the stabilization of the roof behind the working face along the goaf is much longer than that of the shallow gob side roadway, and the time required for the stabilization of the roof is longer than that of the shallow gob side roadway. It is determined that high water material is used to construct roadway side support to keep roadway along gob. According to the characteristics of high water material roadway side support, the roadway side support technology is obtained. On this basis, through theoretical calculation, numerical simulation. Determination of roadway side support parameters. 3, the use of numerical simulation to determine the Sanhejian mine depth along the goaf roadway side retaining roadway side support reinforcement parameters. And on this basis, the reinforcement mechanism of roadway side support is analyzed: the strengthening structure composed of high strength thread steel to pull anchor rod and steel ladder beam can effectively enhance the free surface confining pressure of roadway side support protector and enhance its anti-deformation ability. 4. This paper analyzes the mechanism of supporting in roadway along the gob of kilometer deep well, determines the supporting technology of roadway, and determines the parameters of support in roadway with numerical simulation. The supporting parameters above the roof of the side support and the single hydraulic prop at the rear of the working face are strengthened. The above conclusions are verified successfully in the roadway along the goaf of the transport roadway of No. 7136 working face in Sanhejian Mine.
【學(xué)位授予單位】：中國礦業(yè)大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2015
【分類號】：TD353

【參考文獻】

相關(guān)期刊論文 前6條

1 李海燕;劉玉萍;秦佳之;薛翊國;;煤礦深井開采的合理經(jīng)濟深度研究[J];地下空間與工程學(xué)報;2008年04期

2 華心祝;巷旁充填沿空留巷技術(shù)在我國煤礦的應(yīng)用[J];煤;1996年06期

3 范勝玉;;關(guān)于煤礦深部開采的圍巖控制研究[J];山東煤炭科技;2011年05期

4 余偉健;袁越;王衛(wèi)軍;;困難條件下大變形巷道圍巖變形機理與控制技術(shù)[J];煤炭科學(xué)技術(shù);2015年01期

5 何滿潮;深部的概念體系及工程評價指標(biāo)[J];巖石力學(xué)與工程學(xué)報;2005年16期

6 漆泰岳,陸士良,高波;大變形巷道錨桿的力學(xué)特性[J];中國礦業(yè)大學(xué)學(xué)報;2002年05期

相關(guān)會議論文 前1條

1 俞茂宏;魏雪英;李建春;范文;吉]撼淇，

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