套孔应力解除法与声发射法在新城矿区深部地应力测量中的对比研究

马春德,刘泽霖,谢伟斌,魏新傲,赵新浩,龙珊

Comparative Study of Stress Relief Method and Acoustic Emission Method in In-situ Stress Measurement in Deep Area of Xincheng Gold Mine

Chunde MA,Zelin LIU,Weibin XIE,Xin’ao WEI,Xinhao ZHAO,Shan LONG

表4 声发射试验结果

Table 4 Results of acoustic emission test

埋深/m 垂直主应力/MPa 水平向Kaiser点应力值/MPa 自重应力σ/MPa 最小水平主应力σh min/MPa 最大水平主应力σh max/MPa 最大水平主应力方向θ 0° 45° 90° 950 24.89 14.47 17.47 31.78 25.65 12.78 33.46 N106.58°E 1 050 29.22 18.56 23.83 40.45 28.35 17.18 41.83 N103.42°E 1 150 32.08 18.24 24.15 41.76 31.05 16.86 43.13 N103.13°W