老鹰山井田中断煤层顶底板岩石力学性质表 6-1-1抗压强度 MPa抗拉强度 MPa抗剪强度 b/s岩层 层位岩石名称水饱和干燥最大最小平均软化 系数内摩擦值φ凝聚 力 MPa泊松 比μ35°40°45°50°55°30°35°变形 模量 MPa弹性 模量 MPa08 直顶泥岩崩解12.351.940.251.2445°30′50″0.13240.237.23/6.0710.89/12.891.71/2.967.8313.2208 老底粉砂岩崩解22.1573.784.801.563.310.3028°48′39″2.03860.18-0.1311.7/6.077.23/6.146.05/6.0519.58/23.331.86/2.6533.6135.1410 直顶泥质粉砂岩24.9051.444.142.843.320.4826°47′21″1.89540.23-0.109.67/6.773.35/3.352.23/3.1819.1319.8111 顶泥质粉砂岩崩解51.161.310.941.4545°50′18″2.90000.28-0.326.35/6.354.41/6.291.42/3.0432.5035.6611 老底细砂岩14.4253.357.350.673.530.2737°11′15″4.10000.21-0.139.22/9.224.63/6.612.63/5.649.2311.0212 顶细砂岩42.1781.877.494.216.170.460.5735°23′51″2.30000.17-0.22-0.2514.46/13.8120.34/24.344.11/7.1223.3423.1813 直顶泥质粉砂岩崩解33.611.241.134.8033°25′05″5.39530.14-0.22:0.1326.01/21.3336.01/36.0112.28/14.6216.02/22.875.91/10.236.867.1413 老底细砂岩崩解40.14.140.902.2625°55′28″12.0590.16：0.1722.47/18.8618.57/22.6111.93/20.6613.4911.50K10细砂岩34.3018°46′40″0.7000K8细砂岩49.5025°38′27″0.1000老鹰山井田煤系下断煤层顶底板岩石物理力学性质表 6-1-2物理性指标力学性质指标自然抗压强度抗压强度垂直压力剪切系数岩样层位岩石名称容重吨/cm³比重Δ吸水率%12312246246C θC硬度备注19 直顶粘土岩2.772.31全崩解19 老底粉砂岩2.532.75崩解或碎片3502203-425 直顶粉砂岩2.522.911.562201.952.63.90.650.650.650.6503-425 老底粉砂岩3.223.27未做2771.202.23.30.600.550.530.530.13-426 直顶粉砂岩2.442.59未做12626554484291.202.63.30.300.550.530.530.253-426 直底粉砂岩2.482.321.524273783285881.302.63.90.650.650.650.65027 直顶泥质粉砂岩3371703441.002.13.00.500.500.500.500.0531 直顶泥质粉砂岩2.652.831.8512307473861.102.23.30.550.550.550.5504-531 老底细砂岩2.602.782.895505241.452.63.90.7250.650.610.610.232 直顶泥质粉砂岩2.562.80未做3942922-332 直底粘土岩2.442.73未做312-3岩石破碎未做成抗剪34 直底砂质粘土岩2.572.90未做3271.102.23.00.550.550.470.470.25。