重庆大学岩石力学实验报告

1、重庆大学学生实验报告实验课程名称开课实验室资环学院学 院 资环学院年级2011级 专业班采矿01班学生姓名 学号开课时间2012至2013学年第 二 学期总成绩教师签名资源及环境科学学院制岩石力学实验报告开课实验室：采矿大楼2013年4月20日三、使用仪器、材料仪器：含瓦斯煤热流固耦合三轴伺服渗流实验装置、真空泵材料：煤样、甲烷、硅胶、热缩管四、实验步骤用标准金属试件对系统的气密性进行检测；用热缩管密封煤样后，安装环向引伸计，然后将煤样放入三轴压力室，关闭试件出气管阀门;将轴向的万向压头接触煤样，然后加油排空三轴压力室内空气；接着对煤样进行真空处理，用真空泵抽去煤样内的空气，使煤样内气压降至5

2、0Pa以下；将围压理和轴压稿施加到设定值(=务=2MPa)；开启高压瓦斯罐和减压阀的阀门，将瓦斯压力氏加到1 MPa，并保持瓦斯压力不变，让煤样充 分吸附24 h；打开试件出气管阀门，待瓦斯流量稳定后，用位移控制(0.1mm/min)连续施加轴压进行全应 力-应变瓦斯渗流试验。五、实验过程原始记录(数据、图表、 试样长度(mm): 96.8 轴向力轴向变形(kN)(mm)计算等)试样直径(mm):横向变形围压(mm)(MPa)50.0瓦斯流量 (L/Min)3.930020.0125.970.0620.00620.0118.010.1180.01220.01100.1680.01820.009

3、12.030.2160.02520.00814.040.2630.03120.007160.3070.03820.007180.3580.04520.00620.030.4140.05320.00621.990.4630.0620.00524.020.5130.06820.00526.020.5610.07720.00527.990.6060.08620.00530.010.6520.09520.00532.080.6970.10520.00433.970.7380.11520.00436.050.7820.12620.00437.980.8230.13820.00440.020.8680.1

4、5220.00441.980.9130.1720.00443.990.9740.21320.00446.021.0360.24420.00548.131.1480.38120.00745.761.1870.51920.0142.941.1890.62220.0140.761.1890.69120.01237.21.210.86520.12531.631.2450.9920.23129.221.2341.09820.427.071.2141.13820.81325.481.2221.18120.86624.021.2341.23121.07123.011.2791.30721.12322.231

5、.3321.39121.02721.731.3851.4720.96221.51.441.53720.94321.41.4911.60420.94521.361.5461.66720.93121.391.5981.72720.919六、实验结果及分析应差偏偏差应力-应变0 -0.015 -0.01 -0.005 应差偏偏差应力-应变0 -0.015 -0.01 -0.005 00.005 0.01 0.015 0.02.体积应变轴向应变横向应变应变（%）图_轴向变形（）偏差应力瓦斯流量图二偏差应力0.000.000.004).002体积应变（%）图三附表:轴向应力。1 (MPa)偏差应力。1。

6、3(Mpa)轴向应变 1横向应变 3体积应变 v= 1+2 32.00253150.00253150003.04201351.04201350.000640496-3.82E-050.0005644.08149552.08149550.001219008-7.639E-050.0010665.09553.09550.001735537-0.00011460.0015066.12988654.12988650.002231405-0.00015920.0019137.1540825.1540820.002716942-0.00019740.0023228.15286.15280.00317148

7、8-0.00024190.0026889.17197.17190.003698347-0.00028650.00312510.20628658.20628650.00427686-0.00033740.00360211.20500459.20500450.004783058-0.0003820.00401912.23939110.2393910.005299587-0.00043290.00443413.25849111.2584910.005795455-0.00049020.00481514.262304512.26230450.006260331-0.00054750.00516515.

8、291595513.29159550.006735537-0.00060480.00552616.34636414.3463640.007200413-0.00066850.00586417.309413515.30941350.007623967-0.00073210.0061618.369277516.36927750.008078512-0.00080210.00647419.35270917.3527090.008502066-0.00087850.00674520.39219118.3921910.008966942-0.00096770.00703221.39090919.3909

9、090.009431818-0.00108230.00726722.415104520.41510450.010061983-0.0013560.0073523.44949121.4494910.010702479-0.00155340.00759624.524641522.52464150.011859504-0.00242550.00700823.31700821.3170080.012262397-0.00330410.00565421.88007719.8800770.012283058-0.00395980.00436420.76925818.7692580.012283058-0.

10、0043990.00348518.9552616.955260.0125-0.00550680.00148616.117066514.11706650.01286157-0.00630250.00025614.88905112.8890510.012747934-0.0069901-0.0012313.793518511.79351850.012541322-0.0072447-0.0019512.98333410.9833340.012623967-0.0075185-0.0024112.23939110.2393910.012747934-0.0078368-0.0029311.72474559.72474550.01321281-0.0083206-0.0034311.32729659.32729650.013760331-0.0088554-0.0039511.07252159.07252150.014307851-0.0093583-0.0044110.9553258.9553250.0148760