岩石力学参数.doc

水 泥密度g/cm33.10普通混凝土密度g/cm32.60轻骨料混凝土密度g/cm32.60石灰岩容重kg/m310002600花岗岩容重kg/m325002700（石灰岩）碎石容重kg/m314001700砂容重kg/m314501650粘土容重kg/m316001800普通粘土砖容重kg/m316001800粘土空心砖容重kg/m310001400水泥容重kg/m312001300普通混凝土容重kg/m321002600轻骨料混凝土容重kg/m38001900岩石名称容重d/ (kg。m-3)弹性模量/MPa泊松比内聚力/MPa摩擦角/抗拉强度/MPa顶板粉砂岩24601.95e40.22.75381.84泥岩24610.875e40.261.2300.605砂质泥岩25100.5425e40.1472.16360.75细砂岩28733.34e40.2353.2421.29砂岩24871.35e40.1232.06401.13煤13煤13800.53e40.321.25320.15底板泥岩24831.77e40.2041.2320.58粉砂岩24601.95e40.23.75381.84砂岩25802.5e40.1592.5423.6砂质泥岩25301.085e40.1472.45402.01上层为填筑中细砂土，基层为中硬粘土主要为砂质泥岩，无其他岩土层，岩体基本质量等级。粘聚力c=730kPa，内摩擦角=31，弹性模量E=2661Mpa，泊松比=0.3，密度=2559kg/m3。对于土、岩石和混凝土一类材料，剪胀角通常明显小于材料的内摩擦角表4-5 常见岩石力学性质的经验数据岩类岩石名称抗压强度抗拉强度弹性模量泊松比岩浆岩花岗岩751101201801802002.13.33.45.15.15.71.45.65.436.90.360.160.160.100.100.02正长岩801001201801802502.32.83.45.15.15.71.511.40.360.160.160.100.100.02闪长岩1202002002503.45.75.77.12.211.40.250.100.100.02斑岩1605.46.67.00.16安山岩玄武岩1201601602503.44.54.57.14.310.60.20.160.160.02辉绿岩1601802002504.55.15.77.16.97.90.160.100.100.02流纹岩1202503.47.12.211.40.160.02变质岩花岗片麻岩1802005.15.77.39.40.200.05片麻岩801001401802.22.84.05.11.57.00.300.200.200.05石英岩872003602.55.710.24.514.20.200.160.150.10大理岩701402.04.01.03.40.360.16千枚岩板岩1201403.44.02.23.40.16沉积岩凝灰岩1202503.47.12.211.40.160.02火山角砾岩火山集块岩1202501.011.40.160.0580-87砾岩401001201601601501.12.83.44.54.57.11.011.40.360.200.200.160.160.05石英砂岩68102.51.93.00.391.250.250.05砂岩4.510471800.20.31.45.22.785.40.30.250.20.05片状砂岩碳质砂岩碳质页岩黑页岩带状页岩8013050140258066130682.33.81.54.11.85.64.79.10.40.66.10.62.22.65.52.65.50.250.050.250.080.200.160.200.160.300.25砂质页岩云页岩601804.38.62.03.60.300.16软页岩201.41.32.10.300.25页岩20401.42.81.32.10.250.15泥灰岩3.52040600.31.42.84.20.382.10.400.300.300.20黑泥灰岩2.5301.82.11.32.10.30.25石灰岩10172555701281802000.61.01.53.34.37.610.711.82.18.40.500.310.310.250.250.160.160.04白云岩401201201401.13.43.44.01.33.40.360.160.16表4-6 常见岩石的各种