號隧道巖石試驗統(tǒng)計表

黃草坪二號隧道巖石物理力學性質(zhì)試驗成果統(tǒng)計分析表（一）地層巖石名稱狀態(tài)特征統(tǒng)計項目子樣數(shù)N標準差S變異系數(shù)Cv保證率α系數(shù)ta/子樣極大值子樣極小值算術(shù)平均值標準差平均值保證率平均值推薦值備注組段代號大值小值大值小值寒武系中下統(tǒng)下下段∈1-2a結(jié)晶灰?guī)r強風化天然密度（g//cm3）90.0316770.0116770.950.622.742.672.712.742.682.732.692.71烘干密度（g//cm3）90.0335440.0124440.950.622.732.652.702.732.672.722.682.70比重32.762.712.742.74普通吸水率（%%）90.16600.56790.950.620.550.130.290.460.120.390.190.29飽和吸水率（%%）90.16430.47550.950.620.580.170.350.510.190.450.250.35彈性模量（GPPa）93.88100.23520.950.6222.011.016.520.3812.6218.9114.0914.09泊松比30.290.270.280.28風干抗壓強度（MPa）95.73810.18250.950.6242.822.931.4437.1825.7035.0027.8827.88飽和抗壓強度（MPa）94.16260.17850.950.6231.5017.6023.3227.4819.1625.9020.7420.74風干抗拉強度（MPa）90.51720.17580.950.623.482.152.943.462.423.262.622.62巖塊縱波速度（m/s）9499.374460.12590.950.6248003150396744663467427736574277軟化系數(shù)30.790.660.740.74抗剪斷內(nèi)聚力CC′（kPa）3710500620620抗剪斷內(nèi)摩擦角角φ′(kPa）339.532.035.535.5抗剪內(nèi)聚力C（kPa）3200100133.3133.3抗剪內(nèi)摩擦角φφ(kPa）3322629.329.3弱風化至未風化化天然密度（g//cm3）400.0344990.12590.950.26632.822.622.742.772.712.762.722.74烘干密度（g//cm3）400.0346660.12710.950.26632.822.622.732.762.702.742.722.73比重140.0438000.0157880.950.47332.882.742.782.822.742.802.762.78普通吸水率（%%）400.0956770.39170.950.26630.520.100.2440.340.150.270.220.24飽和吸水率（%%）400.13970.31350.950.26630.770.120.310.450.170.350.270.31彈性模量（GPPa）368.50180.32500.950.281851.736.1926.1634.6617.6628.5623.7623.76泊松比130.0149880.06220.950.49420.270.220.240.250.230.250.230.25風干抗壓強度（MPa）3824.053770.32140.950.273213937.7874.8598.9050.8081.4268.2868.28飽和抗壓強度（MPa）3820.8310.35250.950.273211029.8959.1079.9338.2764.7953.4153.41風干抗拉強度（MPa）362.50850.40930.950.281811.21.386.138.643.626.845.425.42巖塊縱波速度（m/s）39295.54990.05640.950.269757894562524255384946532251625322軟化系數(shù)130.0836550.10610.950.49420.860.610.790.870.700.830.750.75抗剪斷內(nèi)聚力CC′（kPa）11257.92990.28510.950.54631560700904.512006091066743743抗剪斷內(nèi)摩擦角角φ′(kPa）114.43180.09830.950.546353.039.545.149.540.747.542.742.7抗剪內(nèi)聚力C（kPa）11117.132240.4110.9