CAJ | 학술논문

　　针对大倾角工作面上覆岩层运动和破坏特征、支承压力分布规律及其对开采的影响，以走向长壁大倾角综采工作面为工程背景，采用现场实测、理论建模及数值模拟等方法，研究了大倾角煤层开采顶板岩层的断裂机制，以及大倾角煤层煤壁前方和采空区倾向的最大应力集中系数、支承压力塑性区范围、顶板的来压步距、顶底板的位移量等特征。在获得大倾角煤层开采矿压特征基础上，提出工作面支架稳定性、设备防滑以及来压期间采场围岩的控制技术。对减少煤矿顶板事故、提高大倾角煤层开采的安全性具有一定的指导意义。
　　침대대경각공작면상복암층운동화파배특정、지승압력분포규률급기대개채적영향，이주향장벽대경각종채공작면위공정배경，채용현장실측、이론건모급수치모의등방법，연구료대경각매층개채정판암층적단렬궤제，이급대경각매층매벽전방화채공구경향적최대응력집중계수、지승압력소성구범위、정판적래압보거、정저판적위이량등특정。재획득대경각매층개채광압특정기출상，제출공작면지가은정성、설비방활이급래압기간채장위암적공제기술。대감소매광정판사고、제고대경각매층개채적안전성구유일정적지도의의。
To counter the movement and failure characteristics of overburden rock in steeply dipping coal face,the distribution law of its abutment pressure and its influence on the mining,this paper took a fully mechanized longwall face with large dip angle along strike as a project background, and made a study on the failure mechanism of roof rock stratum in the mining process of steeply dipping seam,the maximum stress concentration coefficient in front of the coal wall of the steeply dipping seam and in the direction of gob,the plastic zone scope of the abutment pressure,the roof weighing step,the convergence between roof and floor and so on through the site measurement,theoretical model building and numerical simulation. Based on the ground behaviors of the steeply dipping seam mining,this paper also put forward the control technology for support stability in the working face,the anti-slip of equipment and the stope surrounding rock in the period of roof weighing. This study has a practice meaning for reducing coal mining accidents and improving the safety in steeply dipping seam mining.