中国安全生产科学技术
中國安全生產科學技術
중국안전생산과학기술
JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY
2014年
11期
48-53
,共6页
瓦斯地质%变形变质%瓦斯突出煤体%物理条件%形成过程
瓦斯地質%變形變質%瓦斯突齣煤體%物理條件%形成過程
와사지질%변형변질%와사돌출매체%물리조건%형성과정
gas-geology%deformation-metamorphism%gas outburst coal%physical condition%forming process
煤与瓦斯突出灾害严重威胁着煤矿安全生产,但目前对煤与瓦斯突出的物质载体形成机理研究鲜有报道。瓦斯突出煤体系指含有高能瓦斯且以强烈韧性破坏为主的构造煤体,具备发生煤与瓦斯突出的固体和气体介质条件。以煤体变形变质为主线,综述相关文献并结合研究积累,分析揭示了瓦斯突出煤体形成的物理条件和过程:煤体结构严重破坏的构造煤、积聚于此的大量瓦斯,是瓦斯突出煤体形成的物质基础;构造应力与重力、吸附/解吸作用、气体增滑与气楔作用,是瓦斯突出煤体形成的动力基础;煤体破坏、瓦斯积聚、封闭压实,是瓦斯突出煤体形成过程的主要特征。本研究对复杂地质条件下区域瓦斯预测防治具有重要指导作用。
煤與瓦斯突齣災害嚴重威脅著煤礦安全生產,但目前對煤與瓦斯突齣的物質載體形成機理研究鮮有報道。瓦斯突齣煤體繫指含有高能瓦斯且以彊烈韌性破壞為主的構造煤體,具備髮生煤與瓦斯突齣的固體和氣體介質條件。以煤體變形變質為主線,綜述相關文獻併結閤研究積纍,分析揭示瞭瓦斯突齣煤體形成的物理條件和過程:煤體結構嚴重破壞的構造煤、積聚于此的大量瓦斯,是瓦斯突齣煤體形成的物質基礎;構造應力與重力、吸附/解吸作用、氣體增滑與氣楔作用,是瓦斯突齣煤體形成的動力基礎;煤體破壞、瓦斯積聚、封閉壓實,是瓦斯突齣煤體形成過程的主要特徵。本研究對複雜地質條件下區域瓦斯預測防治具有重要指導作用。
매여와사돌출재해엄중위협착매광안전생산,단목전대매여와사돌출적물질재체형성궤리연구선유보도。와사돌출매체계지함유고능와사차이강렬인성파배위주적구조매체,구비발생매여와사돌출적고체화기체개질조건。이매체변형변질위주선,종술상관문헌병결합연구적루,분석게시료와사돌출매체형성적물리조건화과정:매체결구엄중파배적구조매、적취우차적대량와사,시와사돌출매체형성적물질기출;구조응력여중력、흡부/해흡작용、기체증활여기설작용,시와사돌출매체형성적동력기출;매체파배、와사적취、봉폐압실,시와사돌출매체형성과정적주요특정。본연구대복잡지질조건하구역와사예측방치구유중요지도작용。
Coal-gas outburst is a serious threat to the safety production of coal mine.However, the systematic in-depth study to the formation mechanism of gas outburst coal is scarce.Gas outburst coal which is consisted by heav-ily damaged deformed coal delamination and high-energy coal seam gas, has coal-gas outburst danger in coal seam. Focusing on deformation-metamorphism of coal, the physical conditions and process of gas outburst coal forming were revealed based on the references and previous researches of authors.It was summarized as follows: heavily damaged deformed coal and abundant gas accumulation in coal seam, are the material basis of gas outburst coal forming;the dynamic basis of gas outburst coal forming include tectonic stress and gravity, adsorption/desorption, gas slipping and wedge actions;the main characteristics of gas outburst coal forming are coal body failure, gas ac-cumulation and closed compaction.The research plays an important role on the prediction and prevention of coal-gas outburst hazard in complex geological environments.