山东国土资源
山東國土資源
산동국토자원
LAND AND RESOURCES IN SHANGDONG PROVINCE
2015年
6期
16-19,23
,共5页
瓦斯赋存%含气性%断层%褶皱%构造封盖层类型%五宫煤矿
瓦斯賦存%含氣性%斷層%褶皺%構造封蓋層類型%五宮煤礦
와사부존%함기성%단층%습추%구조봉개층류형%오궁매광
Gas occurrence%gas bearing property%fault%fold%type of tectonic and sealing cover%Wugong coal mine%Xinjiang Uygur Autonomous Region
为认识构造对五宫煤矿瓦斯赋存的控制，分析了瓦斯地质演化特征，探讨了构造样式及组合对瓦斯赋存的控制。研究表明，煤系沉积后发生两次生气作用，生成了较多瓦斯。断层以逆断层为主，封闭性较好；煤层受断层影响而发生结构变形，可吸附更多瓦斯。断层使矿井处于相对封闭的水文地质单元中，阻碍了瓦斯的逸散。褶皱受断层切割多呈单斜构造，瓦斯顺层向上逸散受断层封堵。研究区构造封盖层组合类型为褶皱逆断层类型，盖层透气性较差，有利于瓦斯的保存。
為認識構造對五宮煤礦瓦斯賦存的控製，分析瞭瓦斯地質縯化特徵，探討瞭構造樣式及組閤對瓦斯賦存的控製。研究錶明，煤繫沉積後髮生兩次生氣作用，生成瞭較多瓦斯。斷層以逆斷層為主，封閉性較好；煤層受斷層影響而髮生結構變形，可吸附更多瓦斯。斷層使礦井處于相對封閉的水文地質單元中，阻礙瞭瓦斯的逸散。褶皺受斷層切割多呈單斜構造，瓦斯順層嚮上逸散受斷層封堵。研究區構造封蓋層組閤類型為褶皺逆斷層類型，蓋層透氣性較差，有利于瓦斯的保存。
위인식구조대오궁매광와사부존적공제，분석료와사지질연화특정，탐토료구조양식급조합대와사부존적공제。연구표명，매계침적후발생량차생기작용，생성료교다와사。단층이역단층위주，봉폐성교호；매층수단층영향이발생결구변형，가흡부경다와사。단층사광정처우상대봉폐적수문지질단원중，조애료와사적일산。습추수단층절할다정단사구조，와사순층향상일산수단층봉도。연구구구조봉개층조합류형위습추역단층류형，개층투기성교차，유리우와사적보존。
In order to understand the tectonic control action on gas occurrence of Wugong coal mine , geological e-volution characteristics of gas have been analyzed , control actions of tectonic and its types on gas occurrence have been studied as well .It is showed that twice coal generation processes have happened after coal sedimentary and generated much gas .Faults are mainly composed of reverse faults with better sealing property .Coal strata occurred structural deformation influenced by faults and could adsorb more gas .The coal mine is in a relative closed hydro-geological unit which will prevent gas fugitive .Folds were monoclinic structures cut by faults , and gas fly up along faults and is sealed by faults .The combination of structures and covering layers are fold reverse type .Sealing cov-er has a bad air permeability , which are useful for keeping gas .
