我國巖石物理力學性質(zhì)指標

我國巖石物理力學性質(zhì)指標一．巖石的主要物理性質(zhì)指標值（一）巖石比重巖石名稱比重巖石名稱比重花崗石流紋巖凝灰?guī)r閃長巖斑巖玢巖輝長巖輝綠巖玄武巖橄欖巖蛇紋巖響巖砂巖2.5~2.842.65左右2.56左右2.6~3.12.3~2.82.6~2.92.7~3.22.6~3.12.5~3.32.9~3.42.4~2.82.4~2.71.8~2.75頁巖泥質(zhì)灰?guī)r石灰?guī)r白云巖貝殼灰?guī)r板巖大理巖石英片巖綠泥石片巖粘土質(zhì)片巖角閃片麻巖花崗片麻巖石英巖2.63~2.732.7~2.82.48~2.762.78左右2.70左右2.7~2.842.7~2.872.6~2.82.8~2.92.4~2.63.07左右2.63左右2.63~2.84一般巖石的比重（二）巖石的密度各種巖石的一般天然密度巖石名稱天然密度（g/cm3）巖石名稱天然密度（g/cm3）花崗石正長巖閃長巖輝長巖輝綠巖軌長斑巖玢巖粗面巖玄武巖安山巖蛇紋巖火山凝灰?guī)r凝灰?guī)r凝灰角礫巖含巖漿巖卵石的礫巖鈣質(zhì)膠結礫巖粘土質(zhì)膠結礫巖膠結不好的礫巖石英砂巖硅質(zhì)膠結砂巖泥質(zhì)膠結砂巖2.3~2.82.5~3.02.52~2.962.55~2.982.53~2.972.20~2.742.40~2.862.30~2.772.60~3.102.70~3.102.60左右1.60~1.950.75~1.402.20~2.902.90左右2.30左右2.20左右1.90左右2.61~2.702.50左右2.20左右堅固的頁巖砂質(zhì)頁巖砂質(zhì)鈣質(zhì)頁巖頁巖硅質(zhì)灰?guī)r白云質(zhì)灰?guī)r堅硬致密灰?guī)r致密灰?guī)r泥質(zhì)灰?guī)r新鮮花崗片麻巖強化風花崗片麻巖角閃片麻巖混合片麻巖特別堅硬的石英巖堅固細粒石英巖片狀石英巖風化的片狀石英巖堅硬白云巖白云巖大理巖板巖2.80左右2.60左右2.50左右2.30左右2.81~2.902.80左右2.70左右2.50左右2.30左右2.90~3.302.30~2.502.76~3.052.40~2.633.00~3.302.80左右2.80~2.902.70左右2.90左右2.10~2.702.70左右2.60左右（三）巖石的孔隙性各種巖石的孔隙率巖石名稱孔隙率（%）巖石名稱孔隙率（%）花崗巖閃長巖輝綠巖輝長巖斑巖玄武巖粗面凝灰?guī)r蛇紋巖一般砂巖第三紀砂巖白堊紀砂巖侏羅紀砂巖三疊紀砂巖0.04~2.80.25左右0.29~1.130.29~1.130.29~2.751.28左右25.070.56左右1.60~28.302.2~427.2~37.74.2~24.60.6~27.7頁巖砂質(zhì)頁巖泥質(zhì)頁巖泥灰?guī)r石灰?guī)r白云巖白堊石膏片麻巖大理巖板巖石英巖結晶片巖0.7~1.870.8~4.150.4~1016~520.53~27.00.3~253.0~530.1~4.00.3~2.40.1~60.45左右0~8.70.02~1.85（四）巖石的水理性質(zhì)各種巖石的一般吸水范圍巖石名稱吸水率（%）巖石名稱吸水率（%）花崗巖花崗閃長巖正長巖輝綠巖玄武巖玢巖閃長玢巖偉晶巖霏細巖角礫巖砂巖0.10~0.700.30~0.380.47~1.940.80~5.000.30左右0.07~0.641.0~2.00.20~0.400.10~1.211.00~5.000.20~7.0石灰?guī)r泥質(zhì)灰?guī)r花崗片麻巖角閃片麻巖混合片麻巖石英片巖角閃片巖云母片巖板巖大理巖石英巖0.10~4.452.14~8.160.10~0.700.10~3.11.0.64~3.150.10~0.200.10~0.200.10~0.200.10~0.300.10~0.800.10~1.45各種巖石的軟化系數(shù)巖石名稱抗壓強度（MPa）軟化系數(shù)巖石名稱抗壓強度（MPa）軟化系數(shù)濕試樣干試樣濕試樣干試樣粗?；◢弾r細粒花崗巖花崗斑巖閃長巖安山巖玄武巖砂巖石灰?guī)r石英砂巖粘土質(zhì)砂巖208.0241.0230.080.0~100.0218.1186.5102.876.5122.036.0239.0265.0250.090.0~130.0256.3266.3109.3115.1133.154.00.870.910.920.7~0.80.850.700.930.660.920.67粘土頁巖泥灰?guī)r軟質(zhì)變質(zhì)巖變質(zhì)片麻巖巖漿巖侏羅系石英長石砂巖輕風化白堊系砂巖中等風化白堊系砂巖中奧陶系砂巖新第三系紅砂巖11.021.0——24.046.0——0.460.460.4~0.0680.7~0.840.16~0.50.680.500.400.540.33二．巖石的力學性質(zhì)指標值（一）巖石的變形巖石的變形模量和泊松比巖石名稱邊界條件變形模量（104MPa）泊松比抗壓強度（MPa）應力范圍（MPa）花崗巖105.0105.01.0~13.01.0~35.01.942.920.100.14片麻巖133.2133.2133.21.0~61.01.0~41.01.0~5.03.172.802.100.0330.015大理巖147.5110.0110.01.0~6.05.0~15.01.0~20.05.607.888.560.0320.0260.023石灰?guī)r88.7145.084.61.0~9.01.0~9.01.0~25.09.758.177.830.0370.0320.032砂巖76.545.374.60.5~50.01.0~23.00.5~1.51.130.740.330.0430.013巖石的彈性模量及泊松比（室內(nèi)靜力試驗）巖石名稱彈性模量E（104MPa）泊松比μ平行層理垂直層理平行層理垂直層理粗?；◢弾r4.945.020.220.21細?；◢弾r8.538.440.240.29花崗閃長巖6./65.780.230.20片麻巖4.253.86——大理巖6.865.020.220.06片巖7.304.50——云母石英片巖——0.25石英巖7.146.580.150.16~0.36粗砂巖1.93~4.191.73~4.540.10~0.450.10~0.22中砂巖2.87~4.192.86~3.370.120.15~0.36細砂巖2.88~4.952.90~4.600.10~0.220.28~0.47粉砂巖1.01~3.231.91~3.050.15~0.500.14頁巖4.284.220.090.14石英砂巖5.925.520.14（二）巖石的抗壓強度各種巖石不同層理方向的單軸抗壓強度（室內(nèi)試驗）巖石名稱單軸抗壓強度（MPa）巖石名稱單軸抗壓強度（MPa）巖石名稱單軸抗壓強度（MPa）砂巖160.0~180.0帶狀頁巖6.0~8.0石灰?guī)r80.0~100.0砂巖6.0~7.0煤質(zhì)頁巖25.0~58.040.0~80.0石灰?guī)r70.0~90.0砂巖4.5~10.0石灰?guī)r30.0~50.0長石砂巖248.0~292.0黑頁巖66.4128.0石灰?guī)r25.0~55.0石英砂巖68.0~102.5石灰?guī)r17.0片狀砂巖80.3130.0黑泥灰?guī)r25.0~30.0石灰?guī)r10.0泥灰?guī)r3.5~18.0石灰?guī)r128.0~168.0片狀砂巖50.0~110.070.0~140.0大理巖81.0~107.5石灰?guī)r180.0151.0石英巖87.0粗粒砂巖142.3~176.0118.5~136.8石英巖225.0~360.0有層理的砂巖108.9~136.998.1斑巖136.0中粒砂巖147.0~206.0117.0~216.0斑巖159.0~240.0粘土質(zhì)頁巖（粘土膠結的）34.123.6玄武巖180.0~260.0細粒砂巖133.5~220.5137.8~241.0花崗巖179.2~246.4粘土質(zhì)頁巖（碳酸鹽類膠結）60.845.7花崗巖94.0粉砂巖55.4~114.734.4~104.5花崗巖87.5花崗巖75.0~86.0軟頁巖20.0石灰?guī)r71.2~169.5柱：表中“”、“”分別表示壓力方向垂直于平行層理方向。（三）巖石的抗拉強度幾種沉積巖的極限抗拉強度巖石名稱石英粒平均大?。é蘭）密度（g/cm3）孔隙率（%）彈性模量（104MPa）極限抗拉強度（MPa）平行層理垂直層理砂巖砂質(zhì)頁巖頁巖20~70506~202.5~2.632.512.613.45~6.35.03.1~3.724.01~4.612.0~5.53.0~4.01.34.0~6.03.2~3.52.0~3.0（四）巖石的抗剪強度巖石的抗剪強度類別巖石名稱及特征物理性質(zhì)fc（kPa）密度（g/cm3）比重孔隙率（%）吸水率（%）硬質(zhì)巖石變質(zhì)塊狀巖變質(zhì)片狀巖石灰?guī)r2.6~2.752.6~2.852.6~2.872.7~2.82.7~2.92.7~2.80.2~2.00.29~3.760.95~3.50.1~0.30．08~0.710.95~3.50.6~0.750.5~0.60.5~0.77200~50軟質(zhì)巖石巖漿巖（軟質(zhì)巖石）泥質(zhì)灰?guī)r變質(zhì)巖（