文档介绍：东北犬学工程硕士论文 摘要
摘要
断层是综放工作面常觅的地餍构遗,断层酌分布欲参数对工{皋舀布鬟和生产有缀大款影螅,犍别楚大于袋敷离度的大断层对保持生产的连续性等繁来搬大困难。研究与探索采煤工作面过大断层的合理方法,具有煎大的实践和理论意义。
柒里煤矿2368综采放顶煤工作面往掘避两巷辩发现F鲇。断麓组,国F蚌制帮 F934-2通条分支断鼷组成,两分支叛层在溜予遵驸:j匿合茬,誊孝料邋黠近分叉,台茬部位蠛大落楚18m,。工作面过如此大的落差,。
根据国内势过凝层方案魏磷究,络合工l乍嚣的地震条件、采动条l譬鄹设螽情况,参照柴星煤矿过断层的成功经验,提出了过该断层组的三个可选方案:一是跳采过断层:二愚槐顶破岩强行过断鼷;三怒导峒弓f导起底破者强行过断层。
逶过对三令方案按零、安全霜经漤等方嚣的毙较分攒,采鼹黟S采蘸开切鼹鞠直接强行过断层等常规方法,技术经济不合理。确定导峒引导起底破耢强行过断层为最佳方案。
方寨实遮熬关键技术为:(1)开袋层位鹣努援与选择。极强鞭测,考虑鞭层的变化情况,设计在断层组的分叉和台茬部位采用不同的开采层位。谯具体实施中,按照设计参数控制屡位在较易通过的者层中。(2)导峒的设计。依据充分利用导溺豹嚣粥,确定导溺靛设谤方案。摄摆设嚣,在***予遥瓣:i毽布置鞠个导蜩强保证正确的开采屡位。(3)破糟方法的选择。在不同的部位,根据岩石硬度,采用不同的破岩方法。在具体实施中采用采煤机直接切割和放震动炮破岩措施。(4) 项板管理。针霹蘩道帮雾蝈懿矮叛支妒,确定杰磷靛颈投管理揍施。在搓采过程中,严格按照制定的措施加强顶板支护与管理,防止顶板事故。
综放工作面顺利通过断层的实践以及实际技术经济效果分析,表明方案设计帮实施确霖了生产豹连续毪,玻褥了漫著懿技术缀济效栗。验{燕了导溺季l导超痣破岩强行过断层方案的正确性,探索了方案实施的工艺要求,为综放酾过大断层积累了丰富的现场经验。
关键字:综敖工作蕊瑟蒺导溺雩|导
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东北大学工程硕士论文 ABSTRACT
Abstract
Fault is one of the geological structure in the fully mechanized coal face, Distribution and parameter of fault have heavy influence on the assigning and producing in coal race,especially the high fault bring the great difficulty to keep and probe the rational method ofcrossing over the big fault have great practice and theory meaning.
F934 fault group were disscovered at the time of tunnelling two lanes in 2368 seam of Chaili Mine,which are name of two faults,includes +l and F934-2 Two faults crossing near the leading pass and separating near the material highest drop is
1 8m,which is higher than the thickness of coal more such high drop has not the essful experience,it is a technological difficult problem to solve for Chaili Mine.
According to the research of the scheme of crossing over fault both at home and bine the geological structure,moving condition and the equipment in 2368 seam of Chaili three feasibility schemes:The first is the working face jump the fault;the second is the working face carry and break