中国矿业
中國礦業
중국광업
CHINA MINING MAGAZINE
2013年
10期
96-99
,共4页
成辰欣%张保%吕伟伟%刘金凯%李骐
成辰訢%張保%呂偉偉%劉金凱%李騏
성신흔%장보%려위위%류금개%리기
仰采角度%UDEC%极限片帮倾角%片帮深度
仰採角度%UDEC%極限片幫傾角%片幫深度
앙채각도%UDEC%겁한편방경각%편방심도
upward inclined mining angle%UDEC%tipping point of inclined angle%depth of wall piece
为了研究梧桐庄矿仰采角度对煤壁片帮的影响，分析其片帮机理，定性为重力滑落破坏；运用UDEC（Universal Distinct Element Code）离散元数值软件分析了不同仰采角度下的煤壁片帮情况，得出极限片帮倾角和煤壁片帮深度；并结合现场统计及超声检测所得片帮角度及深度，验证了极限片帮倾角为12°左右，在一定仰采角度范围内片帮深度为0．5m ，片帮主要集中在煤壁的中上部，对仰采条件下煤壁片帮及巷道支护研究有一定的指导意义。
為瞭研究梧桐莊礦仰採角度對煤壁片幫的影響，分析其片幫機理，定性為重力滑落破壞；運用UDEC（Universal Distinct Element Code）離散元數值軟件分析瞭不同仰採角度下的煤壁片幫情況，得齣極限片幫傾角和煤壁片幫深度；併結閤現場統計及超聲檢測所得片幫角度及深度，驗證瞭極限片幫傾角為12°左右，在一定仰採角度範圍內片幫深度為0．5m ，片幫主要集中在煤壁的中上部，對仰採條件下煤壁片幫及巷道支護研究有一定的指導意義。
위료연구오동장광앙채각도대매벽편방적영향，분석기편방궤리，정성위중력활락파배；운용UDEC（Universal Distinct Element Code）리산원수치연건분석료불동앙채각도하적매벽편방정황，득출겁한편방경각화매벽편방심도；병결합현장통계급초성검측소득편방각도급심도，험증료겁한편방경각위12°좌우，재일정앙채각도범위내편방심도위0．5m ，편방주요집중재매벽적중상부，대앙채조건하매벽편방급항도지호연구유일정적지도의의。
In order to study the impact of upward-mining angle on mining coal wall piece in wutongzhuang mine ,the mechanism of wall piece is analyzed and is defined as gravity slide destruction ;Use UDEC (Universal Distinct Element Code) discrete element numerical software to analyze the condition of the mining coal wall piece in different upward-mining angles ,thus obtaining the tipping point of wall piece angle and the depth of the coal wall piece ;The tipping point of wall piece angle is verified to be around 12° combining with the wall piece angle and depth resulting from field statistic and ultrasonic testing ,and the depth of wall piece is 0 .5m within a certain range of upward-mining angle ,wall piece is mainly concentrated in upper coal wall ,which have certain guiding significance for the research of coal wall piece and roadway support under the condition of upward mining .
