【摘要】：本文是以淮南礦業(yè)集團(tuán)張集煤礦東一13-1(1)采區(qū)1122(3)工作面的開采地質(zhì)條件為基礎(chǔ),綜合運(yùn)用理論分析、數(shù)值模擬、工程類比及現(xiàn)場實(shí)測等方法,對(duì)蹬空及沿空巷道圍巖控制技術(shù)進(jìn)行研究。 本論文選用FLAC軟件剖析了蹬空及沿空巷道的圍巖應(yīng)力場、塑性區(qū)和位移場的轉(zhuǎn)變規(guī)律,而且經(jīng)過對(duì)比不同圍巖條件下巷道變形特性,提出了相應(yīng)的錨索網(wǎng)支護(hù)設(shè)計(jì)參數(shù)。經(jīng)過分析沿空側(cè)煤柱的變形特點(diǎn),提出了補(bǔ)打錨索不等強(qiáng)支護(hù)工藝控制部分的較大變形,和選用噴注漿加固工藝加強(qiáng)巷道圍巖的力學(xué)性能,有效地控制住了沿空側(cè)煤柱的變形。提出了蹬空及沿空巷道礦壓觀測實(shí)施方案,并對(duì)蹬空及沿空影響下錨網(wǎng)索支護(hù)巷道的表面位移量、深部位移和頂板離層進(jìn)行監(jiān)測,得出錨索網(wǎng)支護(hù)巷道的礦壓顯現(xiàn)規(guī)律。 本文的研究成果通過了現(xiàn)場工業(yè)性試驗(yàn),并且確保了蹬空及沿空巷道圍巖的耦合變形對(duì)滿足生產(chǎn)的需要,對(duì)類似地質(zhì)條件下的巷道圍巖控制具有重要的參考意義,為企業(yè)創(chuàng)造明顯的經(jīng)濟(jì)效益。
[Abstract]:This paper is based on the mining geological conditions of 1122 (3) working face in Zhangji Coal Mine, Huainan Mining Group, and synthetically applies the methods of theoretical analysis, numerical simulation, engineering analogy and field measurement, etc. The surrounding rock control technology of the roadway along and along the gob is studied. In this paper, the stress field, plastic zone and displacement field of the surrounding rock stress field, plastic zone and displacement field of the roadway are analyzed by using FLAC software. By comparing the deformation characteristics of the roadway under different surrounding rock conditions, the corresponding design parameters of bolting and cable mesh support are put forward. Based on the analysis of the deformation characteristics of coal pillar along the gob, the paper puts forward the large deformation of the control part of the unequal strength support technology of supplementary anchor cable, and selects the grouting reinforcement technology to strengthen the mechanical properties of the surrounding rock of the roadway, which effectively controls the deformation of the coal pillar along the goaf side. This paper puts forward the implementing scheme of mine pressure observation in the roadways along and along the gob, and monitors the surface displacement, deep displacement and roof separation of the roadway supported by bolting wire mesh under the influence of pushing and along the goaf, and obtains the law of the rock pressure behavior of the roadway supported by bolting wire mesh. The research result of this paper has passed the field industrial test, and has ensured the coupling deformation of the roadway surrounding rock along the goaf to satisfy the production need, and has important reference significance to the roadway surrounding rock control under the similar geological condition. For the enterprise to create obvious economic benefits.
【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)】：TD353

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