CAJ | 학술논문

文章通过某矿现有巷道的变形监测表明近距离煤层巷道采用重叠式布置时，其下部巷道矿压显现大，巷道变形量大，支护困难，宜采用内错式布置避开集中应力的影响。通过FLAC3D模拟了内错2 m、4 m和6m时下部煤层运输巷的垂直和水平变形量，最后确定巷道内错4m左右最为合理。通过理论计算得知，该矿上部煤层遗留护巷煤柱的集中应力影响范围约为4．5 m，故内错4 m是合理的。
문장통과모광현유항도적변형감측표명근거리매층항도채용중첩식포치시，기하부항도광압현현대，항도변형량대，지호곤난，의채용내착식포치피개집중응력적영향。통과FLAC3D모의료내착2 m、4 m화6m시하부매층운수항적수직화수평변형량，최후학정항도내착4m좌우최위합리。통과이론계산득지，해광상부매층유류호항매주적집중응력영향범위약위4．5 m，고내착4 m시합리적。
Through an existing roadway deformation monitoring indicates a mine roadway using overlapping seams close arrangement ,its pressure behavior of the lower roadway large roadway deformation capacity ,supporting difficulties should avoid using the wrong type ar-rangement stress concentration effects .By FLAC3D simulates the wrong 2 m,the vertical and horizontal deformation of the lower seam roadway of 4 m and 6 m when finalizing the roadway around 4 m wrong most reasonable .By theoretical calculation that coal mine left o-ver from the upper part of Pillar stress concentration range of about 4.5 m,so the wrong 4 m is reasonable .