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斜管式浓密机

WENZHANGLAIYUAN:NONGSUOJICHANGJIA    FABUSHIJIAN:2016-06-30LIULANCISHU:238ZUOZHE:

  斜管式浓密机充填体内中点垂直应力随工作面的推进一直在增大,增长速率由大到小至趋于稳定。该点距工作面20 m时受工作面采动影响产生0.074 MPa的垂直应力,工作面推进到空区时的垂直应力为3.96 MPa。推进过程中充填体强度不大,说明斜管式浓密机充填体具有较好的承载能力.

  ZHENDUISHENGHUAMEIYE3#MEICENGDEJUTITIAOJIAN,TONGGUOGONGZUOMIANGUO6 mKUANDEKONGQUDEWULIMONISHIYAN,KEYIDECHUYIXIAJIELUN:

  TONGGUOJIANLIKONGQULAODINGJIEGOULIXUEMOXING.JIYUQITILIANGJIEGOUDE“S- R"WENDINGPINGHENGTIAOJIAN,QIUCHUGUANJIANKUAIBBUFASHENGHUALUOSHIWENSHIKONGQUCHONGTIANTIDEZHIHUQIANGDUWEI3.82MPa,XIEGUANSHINONGMIJIYUTONGGUOSHIYANDECHUDEJIAODAZHIHUQIANGDU3.96 MPaXIANGJIEJIN,YANZHENGLEGONGSHIDEZHENGQUEXING。

  TONGGUOFENXIWEIYANPOHUAITEZHENG,DECHUCHONGTIANGUOKONGQUSHIKEYISHIJIBENDINGCHUCIKUALUOBUJUYOU30 mJIANSHAOZHI24Wt,KONGQULIANGCEMEIBANGSUXINGPOHUAIJIANRUO。

  通过比较分析煤柱垂直应力曲线,得出斜管式浓密机采用充填措施煤柱塑性破坏由4 m减小为1 m,当工作面距充填区8m时,煤柱上的垂直应力呈“马鞍”状分布,煤柱弹性核区宽度约为5 m,提高了煤柱的承载能力,维护其稳定,这是斜管式浓密机工作面安全有效过空区的关键。


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