滨海矿区地应力与岩石力学参数随埋深的变化规律及其相互关系

王玺,马春德,刘兴全,姜明伟,范玉赟

The Variation Law of In-situ Stress and Rock Mechanical Parameters with Buried Depth in Coastal Mining Area and Their Relationship

Xi WANG,Chunde MA,Xingquan LIU,Mingwei JIANG,Yuyun FAN

表1 各钻孔不同埋深测试点地应力情况

Table 1 In-situ stress at different buried depth test points of each borehole

钻孔编号 H/m σv/MPa σ/MPa 水平方向Kaiser效应突变点应力值/MPa σH/MPa σh/MPa 0°（σⅠ） 45°（σⅡ） 90°（σⅢ） ZK94-2钻孔 300 7.99 8.10 10.59 13.46 20.62 21.06 10.15 600 16.55 16.2 12.86 15.47 28.10 29.60 11.36 900 24.91 24.3 13.98 14.59 31.11 34.24 12.85 1 200 33.23 32.4 17.19 22.01 35.03 35.93 16.29 1 500 39.34 39.21 18.01 25.23 38.65 39.19 17.47 1 600 43.50 43.2 19.77 30.32 44.21 44.32 19.66 ZK88-21钻孔 300 7.97 8.1 9.80 13.18 19.77 20.03 9.55 600 17.05 16.23 14.12 16.41 28.43 29.92 14.26 900 23.20 24.35 16.14 15.40 32.06 35.90 14.95 1 200 33.49 32.47 17.96 22.46 34.97 35.86 17.07 1 500 40.70 40.52 17.47 27.22 40.43 40.56 17.34 1 800 44.90 42.94 17.52 29.31 42.62 42.70 17.44 1 900 46.70 43.01 17.61 29.72 42.93 43.93 17.61 ZK88-14钻孔 300 7.65 8.10 11.83 15.59 20.73 20.78 11.78 600 15.65 16.20 11.78 11.82 33.45 26.41 12.62 900 24.71 24.30 15.75 14.98 36.80 36.30 12.31 1 200 32.12 32.40 20.05 26.20 43.54 36.80 18.79 1 500 41.82 40.50 20.74 22.62 44.89 42.63 17.01