矿岩开挖松动区厚度预测及非爆机械化开采判据
景岳,王少锋,鲁金涛

Thickness Prediction of the Excavation Damage Zone and Non-explosive Mechanized Mining Criterion
Yue JING,Shaofeng WANG,Jintao LU
表3 监测孔松动区测量数据
Table 3 Measurement data of the EDZ in monitoring holes
孔号钻孔与水平面夹角θ/(°)钻孔中松动区位置L1/m钻孔后矿岩垮落厚度L2/m松动区实际厚度L3/m松动区平均厚度L4/m
103.260.153.41(舍去)2.33 (左侧:1号~6号孔)
202.560.102.66
302.700.052.75
401.990.122.11
502.100.132.23
601.660.261.92
702.650.072.722.49 (外侧:7号~12号孔)
802.150.162.31
902.330.022.35
1002.440.182.62
1101.850.472.32
1202.220.392.61
1302.400.052.452.69 (右侧:13号~18号孔)
1402.700.062.76
1502.650.132.78
1602.670.122.79
1702.6802.68
1803.030.133.16(舍去)