煤矿开采
煤礦開採
매광개채
COAL MINING TECHNOLOGY
2015年
1期
75-77
,共3页
谷恺%张召千%仝峰%景康飞%袁博
穀愷%張召韆%仝峰%景康飛%袁博
곡개%장소천%동봉%경강비%원박
垂线法%高速公路%岩层移动角%保护煤柱%数值模拟
垂線法%高速公路%巖層移動角%保護煤柱%數值模擬
수선법%고속공로%암층이동각%보호매주%수치모의
vertical-line method%expressway%movement angle of rock%protective coal-seam%numerical simulation
以三元煤业1312工作面上覆高速公路为背景，通过对岩层移动角计算，利用改进后的垂线法确定高速公路下合理的保护煤柱尺寸，并通过FLAC3D 模拟相应表土层厚度下地表的移动以及上覆岩层的应力情况，以确定高速公路下合理保护煤柱的尺寸。理论计算与数值模拟得出的结果较为接近，通过比较保护煤柱的最终尺寸为245mm。
以三元煤業1312工作麵上覆高速公路為揹景，通過對巖層移動角計算，利用改進後的垂線法確定高速公路下閤理的保護煤柱呎吋，併通過FLAC3D 模擬相應錶土層厚度下地錶的移動以及上覆巖層的應力情況，以確定高速公路下閤理保護煤柱的呎吋。理論計算與數值模擬得齣的結果較為接近，通過比較保護煤柱的最終呎吋為245mm。
이삼원매업1312공작면상복고속공로위배경，통과대암층이동각계산，이용개진후적수선법학정고속공로하합리적보호매주척촌，병통과FLAC3D 모의상응표토층후도하지표적이동이급상복암층적응력정황，이학정고속공로하합리보호매주적척촌。이론계산여수치모의득출적결과교위접근，통과비교보호매주적최종척촌위245mm。
Applying modified vertical-line method, rational width of protective coal-seam for expressway over 1312 mining face of Sanyuan Colliery was obtained by calculating movement angle of rock.Surface movement and stress of overlying strata was simulated with FLAC3D so as to determine rational width of protective coal-seam.Theoretical calculation was nearly the same with numerical simu-lation result, it was finally determined as 245mm.
