岩石力学参数.docx

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/m31000~2600花岗岩容重kg/m32500~2700（石灰岩）碎石容重kg/m31400~1700砂容重kg/m31450~1650粘土容重kg/m31600~1800普通粘土砖容重kg/m31600~1800粘土空心砖容重kg/m31000~1400水泥容重kg/m31200~1300普通混凝土容重kg/m32100~2600轻骨料混凝土容重kg/m3800~1900

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24601.95e40.23.75381.84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75~110
120~180
180~2002.1~3.3
3.4~5.1
5.1~5.71.4~5.6
5.43~6.90.36~0.16
0.16~0.10
0.10~0.02正长岩80~100
120~180
180~2502.3~2.8
3.4~5.1
5.1~5.71.5~11.40.36~0.16
0.16~0.10
0.10~0.02闪长岩120~200
200~2503.4~5.7
5.7~7.12.2~11.40.25~0.10
0.10~0.02斑岩1605.46.6~7.00.16安山岩
玄武岩120~160
160~2503.4~4.5
4.5~7.14.3~10.60.2~0.16
0.16~0.02辉绿岩160~180
200~2504.5~5.1
5.7~7.16.9~7.90.16~0.10
0.10~0.02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80~100
140~1802.2~2.8
4.0~5.10.30~0.20
0.20~0.05石英岩87
200~3602.5
5.7~10.24.5~14.20.20~0.16
0.15~0.10大理岩70~1402.0~4.01.0~3.40.36~0.16千枚岩
板岩120~1403.4~4.02.2~3.40.16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40~100
120~160
160~1501.1~2.8
3.4~4.5
4.5~7.11.0~11.40.36~0.20
0.20~0.16
0.16~0.05石英砂岩68~102.51.9~3.00.39~1.250.25~0.05砂岩4.5~10
47~1800.2~0.3
1.4~5.22.78~5.40.3~0.25
0.2~0.05片状砂岩
碳质砂岩
碳质页岩
黑页岩
带状页岩80~130
50~140
25~80
66~130
6~82.3~3.8
1.5~4.1
1.8~5.6
4.7~9.1
0.4~0.66.1
0.6~2.2
2.6~5.5
2.6~5.50.25~0.05
0.25~0.08
0.20~0.16
0.20~0.16
0.30~0.25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3.5~20
40~600.3~1.4
2.8~4.20.38~2.10.40~0.30
0.30~0.20黑泥灰岩2.5~301.8~2.11.3~2.10.3~0.25石灰岩10~17
25~55