回采巷道支护参数确定方法及应用

Methods of the parameters design of support determination and its application

对云南兴云煤矿8303工作面回采矩形巷道的围岩松动圈高度进行了测试,根据测试结果,得出巷道围岩松动圈的高度范围。以此为依据,提出了8303工作面回采巷道的支护设计参数。通过现场试验,证明该支护技术能够有效控制围岩移动变形,效果理想,该技术值得推广应用。

The range of cracked surrounding rock of the square type gateway is tested using the ultrasonic technology at the 8303 coal face in mine Scope of cracked surrounding rock of the gateway is concluded through the monitoring result.Based on the surrounding rock cracked range theory,the parameters of supporting design is made at the 8303 coal face.After the site investigation,it can be to effectively control surrounding rock deformation a good support result is obtained and worthy to be popularized in clinic.