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根据里彦煤矿16314与17314联合开采工作面的开采技术条件,采用理论计算的方法对同采工作面的安全错距进行了初步确定。用UDEC离散元软件得到了不同错距下超前支承压力的分布规律,得出工作面联合开采条件下的合理错距,并与理论计算结果进行了对比分析。在该错距条件下进行了联合开采工作面工程应用,17314工作面来压强度明显降低,保证了工作面的顺利安全回采。
According to the mining technical conditions of 16314 and 17314 joint mining face in Liyan coal mine, the theoretical calculation method is used to preliminary determine the safety fault distance of the same mining face. With the UDEC discrete element software, the distribution law of the advance support pressure under different staggering distances was obtained. The reasonable error distance under the joint mining condition was obtained and compared with the theoretical calculation results. Under the condition of the wrong distance, the joint mining face engineering application was carried out. The pressure intensity of 17314 working face was obviously reduced, which ensured the safe and safe mining face.