岩石力学参数

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1、水泥 密度 g/cm3 3.10 普通混凝土 密度 g/cm3 2.60 轻骨料混凝土 密度 g/cm3 2.60 石灰岩 容重 kg/m3 1000~2600 花岗岩 容重 kg/m3 2500~2700 （石灰岩）碎石 容重 kg/m3 1400~1700 砂 容重 kg/m3 1450~1650 粘土 容重 kg/m3 1600~1800 普通粘土砖 容重 kg/m3 1600~1800 粘土空心砖 容重 kg/m3 1000~1400 水泥 容重 kg/m3 1200~1300 普通混凝土 容重 kg/m3 2100~2600 轻骨料混凝土

2、 容重 kg/m3 800~1900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24601.95e40.2

3、3.75381.84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Ⅳ。粘聚力c=730kPa，内摩擦角Φ=31°，弹性模量E=2661Mpa，泊松比ν=0.3，密度ρ=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75~110120~180180~2002.1~3.33.4~5.15

4、.1~5.71.4~5.65.43~6.90.36~0.160.16~0.100.10~0.02正长岩80~100120~180180~2502.3~2.83.4~5.15.1~5.71.5~11.40.36~0.160.16~0.100.10~0.02闪长岩120~200200~2503.4~5.75.7~7.12.2~11.40.25~0.100.10~0.02斑岩1605.46.6~7.00.16安山岩玄武岩120~160160~2503.4~4.54.5~7.14.3~10.60.2~0.160.16~0.02辉绿岩160~180200~2

5、504.5~5.15.7~7.16.9~7.90.16~0.100.10~0.02流纹岩120~2503.4~7.12.2~11.40.16~0.02变质岩花岗片麻岩180~2005.1~5.77.3~9.40.20~0.05片麻岩80~100140~1802.2~2.84.0~5.11.57.00.30~0.200.20~0.05石英岩87200~3602.55.7~10.24.5~14.20.20~0.160.15~0.10大理岩70~1402.0~4.01.0~3.40.36~0.16千枚岩板岩120~1403.4~4.02.2~3.40.1

6、6沉积岩凝灰岩120~2503.4~7.12.2~11.40.16~0.02火山角砾岩火山集块岩120~2501.0~11.40.16~0.0580°-87°砾岩40~100120~160160~1501.1~2.83.4~4.54.5~7.11.0~11.40.36~0.200.20~0.160.16~0.05石英砂岩68~102.51.9~3.00.39~1.250.25~0.05砂岩4.5~1047~1800.2~0.31.4~5.22.78~5.40.3~0.250.2~0.05片状砂岩碳质砂岩碳质页岩黑页岩带状页岩80~13050~140

7、25~8066~1306~82.3~3.81.5~4.11.8~5.64.7~9.10.4~0.66.10.6~2.22.6~5.52.6~5.50.25~0.050.25~0.080.20~0.160.20~0.160.30~0.25砂质页岩云页岩60~1804.3~8.62.0~3.60.30~0.16软页岩201.41.3~2.10.30~0.25页岩20~401.4~2.81.3~2.10.25~0.15泥灰岩3.5~2040~600.3~1.42.8~4.20.38~2.10.40~0.300.30~0.20黑泥灰岩2.5~301.8~2

8、.11.3~2.10.3~0.25石灰岩10~1725~5570~128180~2000.6~1.01.5~3.34.3~