摘要
针对榆家梁煤矿42216-1掘进面上覆基岩薄且松散的特点,采用数值模拟及理论计算并结合工程实际,得出锚杆最佳间排距及长度。现场检测巷道无明显下沉,取得了良好的支护效果。
According to the characteristics of 42216-1 heading face in Yujialiang coal mine, by using the numerical simulation, theoretical calculation method and engineering practice, the reasonable anchor supporting parameters are obtained. On-site monitoring shows that the supporting effect is good and has no signifieant roadway sinking.
出处
《陕西煤炭》
2012年第3期98-99,85,共3页
Shaanxi Coal
关键词
薄基岩
锚杆支护
数值模拟
理论计算
thin bedrock
bolt support
numerical simulation ~ theoretical calculation
