摘要
对小屯矿14263工作面回采矩形巷道应用超声检测技术进行了松动圈厚度测试。通过对测试结果的分析,得出小屯矿回采巷道围岩松动圈的范围并以围岩松动圈支护理论为基础,提出了14263工作面回采巷道的支护设计参数,通过现场试验,取得了较好的支护效果。
This paper applies the ultrasonic technology to testing the range of cracked surrounding rock of the square type gateway at the 14263coal face in xiaotun mine. Scope of cracked surrounding rock of the gateway is concluded through analyzing the monitoring result. Based on the surrounding rock cracked range theory , the parameters of supporting design is made. After the site investigation, a good support result is obtained.
出处
《山东煤炭科技》
2009年第2期109-110,共2页
Shandong Coal Science and Technology
