本文選題：軟巖巷道 + 底臌治理�。� 參考：《安徽理工大學(xué)》2016年碩士論文

【摘要】：底臌問(wèn)題是軟巖巷道中的一個(gè)重要技術(shù)難題,它一直困擾著國(guó)內(nèi)外煤炭領(lǐng)域的許多專(zhuān)家學(xué)者。雖然國(guó)內(nèi)外學(xué)者已經(jīng)提出了不少支護(hù)方式,其中最為常見(jiàn)的是加固法、卸壓法和聯(lián)合支護(hù)法等,上述治理效果雖然好,但有諸多缺點(diǎn)不可忽視,例如聯(lián)合法雖然支護(hù)效果好,但在施工現(xiàn)場(chǎng)中會(huì)存在二次返修問(wèn)題。諸若此類(lèi)的問(wèn)題在煤炭生產(chǎn)過(guò)程中,會(huì)帶來(lái)嚴(yán)重的安全隱患。因此,如何能夠有效的控制巷道底臌,已經(jīng)成為亟待解決的重要課題之一。論文是以朱仙莊軟巖巷道Ⅱ857行人車(chē)巷作為研究對(duì)象,闡述軟巖的基本特性、軟巖巷道破壞機(jī)理、以及治理措施,分析底臌產(chǎn)生機(jī)理,建立軟巖巷道的力學(xué)模型,并推導(dǎo)出塑性發(fā)展深度的相關(guān)表達(dá)式。通過(guò)MIDAS/GTS軟件,對(duì)無(wú)支護(hù)條件下巷道進(jìn)行數(shù)值模擬,推出對(duì)該巷道的五種支護(hù)方案。另外,通過(guò)對(duì)五種不同支護(hù)方案下巷道圍巖的演化過(guò)程,分別從巷道圍巖應(yīng)力、位移及變形特征的模擬結(jié)果,比較各支護(hù)方式的優(yōu)點(diǎn)和不足,最終確定錨網(wǎng)索+底板錨桿+滯后注漿支護(hù)結(jié)構(gòu)為最佳治理方案。論文在朱仙莊Ⅱ857行人車(chē)巷的工程實(shí)踐應(yīng)用中提供了理論性指導(dǎo),分析表明,該巷道圍巖變形大幅減小,底臌也得到有效控制,達(dá)到預(yù)期支護(hù)效果,論文的研究成果為今后類(lèi)似巷道底臌治理工程中提供了重要參考。
[Abstract]:Floor heave is an important technical problem in soft rock roadway. Although scholars at home and abroad have put forward a lot of support methods, the most common methods are reinforcement method, pressure relief method and combined support method. Although the above treatment effect is good, there are many shortcomings that can not be ignored, for example, although the combined support method has good support effect, However, in the construction site there will be secondary repair problems. If such problems in the coal production process, will bring serious safety risks. Therefore, how to effectively control the floor heave has become one of the important issues to be solved. This paper takes Zhuxianzhuang soft rock roadway 鈪，

本文編號(hào)：2079168