And above 90 % spontaneous combustion occurs in goaf.
其中90%以上自然發(fā)火發(fā)生在采空區(qū).
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The coal spontaneous combustion in the goaf is one of the main coal disasters.
采空區(qū)煤炭自燃火災(zāi)一直是我國煤礦的主要災(zāi)害之一.
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The method of gas drainagecoal seam gas drainage , near coal gas drainage , and goaf gas drainage.
瓦斯抽放的方法有本煤層抽放 、 鄰近層抽放和采空區(qū)抽放.
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The influence of different kinds of goaf air leaking to the spontaneous wall face is analysed.
分析了不同類型的采空區(qū)漏風(fēng)對采空區(qū)自燃發(fā)火的影響.
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Gas wood road 413 of this mine is through the link - roadway caused by goaf gas discrarging.
該礦413機(jī)巷后路瓦斯超限是采空區(qū)瓦斯通過聯(lián)絡(luò)巷泄漏所致.
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At present, many open - pit mine face serious threat of underground goaf in pit limit in china.
目前國內(nèi)有不少露天礦山在生產(chǎn)過程中面臨著境界內(nèi)地下采空區(qū)的嚴(yán)重威脅.
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The paper first determined the range of Zhongjiashan goaf material - probe method and pit base investigation.
結(jié)合物探、坑底調(diào)查等方法對鐘家山煤礦采煤區(qū)的現(xiàn)場勘察,確定采空區(qū)的范圍.
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There are many factors influencing spontaneous combustion in goaf and their relative essentialities are different.
采空區(qū)自然發(fā)火的影響因素很多,各因素之間的相對重要性不同.
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