本文選題：大采高綜放 + 復合關鍵層��； 參考：《中國礦業(yè)大學（北京）》2015年博士論文

【摘要】：大采高工作面由于礦壓顯現(xiàn)劇烈、巷道變形嚴重，研究大采高工作面的覆巖移動理論及大斷面巷道圍巖控制技術對于采礦工程具有重要意義。通過深基點多點位移計及鉆孔電視窺視法、數(shù)值模擬及理論分析，揭示了大采高工作面巷道不穩(wěn)定的破壞機理，提出了大采高工作面巖層移動可通過復合關鍵層理論來分析計算。分析表明大采高工作面頂板周期性垮落步距分布在[9.0m,14.0m]之間，，具有正態(tài)分布特征。研究認為大采高工作面覆巖沉降變化隨著采動進行而不斷變化的時間和空間動態(tài)變化過程，把FLAC模擬結(jié)果轉(zhuǎn)化到三維Surfer軟件獲得了三維覆巖移動規(guī)律，這可直觀獲得大采高工作面上覆巖層的全局動態(tài)時空變形情況。錨桿支護中預應力是個關鍵參數(shù)，對于五陽煤礦大采高工作面巷道，應選取強度大、直徑大的強力錨桿，分析了典型工作面回風巷變形破壞機理，提出了采用預應力加長錨固錨桿錨索支護系統(tǒng)的巷道支護設計方案，采用大采高工作面巷道錨桿動態(tài)支護信息設計法，充分利用施工過程中提供的各類信息，實時進行信息收集、信息分析與信息反饋，在大采高工作面巷道圍巖控制中取得良好效果。
[Abstract]:The overlying rock movement theory and the surrounding rock control technology of large-section roadway in large mining face are of great significance to mining engineering because of the severe mine pressure and the serious deformation of roadway.The failure mechanism of roadway instability in large mining face is revealed by numerical simulation and theoretical analysis by means of deep base point multi-point displacement meter and borehole television peep-view method.It is put forward that the movement of rock layer in large mining face can be analyzed and calculated by the theory of compound key layer.The analysis shows that the roof collapse distance of large mining face is in the range of [9.0m ~ 14.0m], which has the normal distribution characteristic.It is considered that the time and space dynamic change process of overburden subsidence changes with mining movement in large mining face. The FLAC simulation results are transformed into 3D Surfer software to obtain the 3D overburden movement law.The global dynamic temporal and spatial deformation of overlying strata on the face of large mining height can be obtained intuitively.The prestress is a key parameter in bolt support. For the roadway of large mining height working face in Wuyang coal mine, the strong bolt with large strength and large diameter should be selected, and the deformation and failure mechanism of return air roadway in typical working face is analyzed.The design scheme of roadway support with prestressed extended anchor bolt and anchor cable support system is put forward. The dynamic support information design method of roadway in large mining face is adopted to make full use of all kinds of information provided in the construction process.Information collection, information analysis and information feedback are carried out in real time, and good results are obtained in surrounding rock control of roadway in large mining face.
【學位授予單位】：中國礦業(yè)大學（北京）
【學位級別】：博士
【學位授予年份】：2015
【分類號】：TD353

【參考文獻】

相關期刊論文 前10條

1 梁運培;采場覆巖移動的組合巖梁理論[J];地下空間;2001年S1期

2 龔紀文,崔建軍,席先武,林舸;FLAC數(shù)值模擬軟件及其在地學中的應用[J];大地構(gòu)造與成礦學;2002年03期

3 馮銳，林宣明，陶裕錄，周海南，滕云田，周鶴鳴，郝錦綺;煤層開采覆巖破壞的層析成像研究[J];地球物理學報;1996年01期

4 楊天鴻,唐春安,鄭雨天,芮勇勤,江智明,馬新民,霍起元;FLAC程序在撫順西露天礦邊坡變形治理工程中的應用[J];地質(zhì)災害與環(huán)境保護;1999年03期

5 D.H.迪林,張?zhí)燔?高戰(zhàn)敏,蔡嗣經(jīng);21世紀的超深采礦[J];國外金屬礦山;2000年06期

6 李建軍;大采高綜采工作面礦壓觀測與頂板管理[J];華北科技學院學報;2004年02期

7 霍振奇;綜采工作面利用礦壓參數(shù)推算覆巖破壞高度的分析[J];河北煤炭;1986年02期

8 錢七虎;深部巖體工程響應的特征科學現(xiàn)象及“深部”的界定[J];東華理工學院學報;2004年01期

9 孫國權;李娟;胡杏保;;基于FLAC~(3D)程序的采空區(qū)穩(wěn)定性分析[J];金屬礦山;2007年02期

10 解世俊,孫凱年,鄭永學,李元輝;金屬礦床深部開采的幾個技術問題[J];金屬礦山;1998年06期

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