煤与瓦斯突出机理和模拟试验研究现状及发展趋势

Research status and development trend of mechanism and simulation test of coal and gas outburst

总结了煤与瓦斯突出机理的理论研究现状,分析了国内外对含瓦斯煤体相似材料和煤与瓦斯突出模拟试验装置研究的典型范例。指出了煤与瓦斯突出机理及模拟试验研究方面存在的不足之处:目前煤与瓦斯突出机理的理论研究多是定性描述,缺乏定量、统一、完整的理论体系;已有模拟试验系统和装置还无法准确地对综合考虑地质构造、地应力、煤体强度、瓦斯含量及施工过程等影响因素下的突出现象进行定量模拟,试验装置的力学加载、瓦斯充填和测试系统的精度有待进一步提高;试验仪器的试验操作与便利性不足,试验的可重复性有待提高;试验仪器的数据分析系统不完善。分析了煤与瓦斯突出机理研究与模拟试验的发展趋势,认为煤与瓦斯突出模拟试验必须符合相似理论,煤与瓦斯突出模拟试验仪器研究是机理研究突破的迫切需求。

Theoretical research status of mechanism of coal and gas outburst was summarized.Typicalexamples of similar materials of gas-bearing coal and simulation experiment device of coal and gas outburst were analyzed.Deficiency of the research of mechanism of coal and gas outburst and simulation experiment was pointed out,namely,theory research results of mechanism of coal and gas outburst are more qualitative description,lack quantitative,unified and complete theoretical system;the existing outburst simulation test systems and devices can not accurately simulate the outburst phenomena under the influence factors of geological structure,ground stress,coal strength,gas content and construction process,and the accuracy of the mechanical loading system,gas filling system and testing system of the test equipment needs to be further improved;the experimental operation and convenience of the test instrument are not enough,and the reproducibility of the test needs to be improved;the data analysis system of test instruments is not perfect.The development trend of mechanism research of coal and gas outburst and simulation experiment was prospected：the simulation experiment of coal and gas outburst must conform to the similarity theory,and the research of simulation test instrument of coal and gas outburst is an urgent demand for the breakthrough of mechanism research.