CAJ | 학술논문

基于石门揭煤过程中采掘应力场与瓦斯突出关系研究的需要,针对目前石门揭煤突出模型还处在实验室研究的阶段,而大部分都未能综合考虑瓦斯压力、地应力、煤的物理力学性质等对突出的影响,研制出一套能够综合考虑地应力、瓦斯压力及煤体结构的石门揭煤突出模拟试验系统.为取得准确、客观的试验效果,进行了密封、快速开启装置及氮气平衡系统等关键技术的设计,介绍了试验系统的主要组成结构、功能.利用该实验台进行石门揭煤突出试验,试验结果反映出在突出过程中地应力和瓦斯压力的变化情况,可为研究和揭示煤与瓦斯突出机制、突出过程中地应力和瓦斯压力的变化规律提供新的技术手段.
기우석문게매과정중채굴응력장여와사돌출관계연구적수요,침대목전석문게매돌출모형환처재실험실연구적계단,이대부분도미능종합고필와사압력、지응력、매적물리역학성질등대돌출적영향,연제출일투능구종합고필지응력、와사압력급매체결구적석문게매돌출모의시험계통.위취득준학、객관적시험효과,진행료밀봉、쾌속개계장치급담기평형계통등관건기술적설계,개소료시험계통적주요조성결구、공능.이용해실험태진행석문게매돌출시험,시험결과반영출재돌출과정중지응력화와사압력적변화정황,가위연구화게시매여와사돌출궤제、돌출과정중지응력화와사압력적변화규률제공신적기술수단.
Based on the research needs of the relation between mining stress fields and gas outburst during the process of rock cross-cut coal uncovering, a set of outburst simulation experiment system of rock cross-cut coal uncovering is developed which takes ground stress, gas pressure and coal structure into account comprehensively, while outburst model of rock cross-cut coal uncovering is still on the stage of laboratory research and most don’t comprehensively consider the effect of gas, ground stress and physico-mechanical properties on outburst. To get accurate, objective the experimental effect, the design of key technologies such as main composition structure, function of this experiment system, outburst roadway, quick opening device and nitrogen balance system are introduced. The experiment results reflected the change of stress and gas pressure during outburst in uncovering coal seam using this experiment system. This experiment system provides new technical means for studying on and revealling the change law of mechanism of coal and gas outbursts and ground stress, gas pressure during the process of outburst.