| 并联型软岩温度-渗流-应力耦合三轴流变仪的研制 |
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| 引用本文： | 陈卫忠,李翻翻,马永尚,雷江,于洪丹,邢天海,郑有雷,贾晓东.并联型软岩温度-渗流-应力耦合三轴流变仪的研制[J].岩土力学,2019,40(3):1213-1220. |
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| 作者姓名： | 陈卫忠 李翻翻 马永尚 雷江 于洪丹 邢天海 郑有雷 贾晓东 |
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| 作者单位： | 1. 中国科学院武汉岩土力学研究所 岩土力学与工程国家重点实验室，湖北 武汉 430071；
2. 中国科学院大学，北京 100049；3. 山东大学 岩土与结构工程研究中心，山东 济南 250061；
4. 兖州煤业股份有限公司 济三煤矿，山东 邹城 273512 |
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| 基金项目： | 国家自然科学基金资助项目（No.51479190）；比利时核废料地质处置研究中心（No.EUR-12-110）；中国科学院青年创新促进会资助项目。 |
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| 摘 要： | 为研究温度?渗流?应力耦合条件下软岩的长期力学特性，研制了并联型软岩温度?渗流?应力(THM)耦合三轴流变仪。该仪器适用于开展软岩在不同温度和应力条件下的力学特性的试验研究。仪器通过伺服控制实现试验过程中自动稳压、试验数据自动采集以及温度、水压力和应力独立控制的梯度加载，设备采用高精度的LVDT变形传感器对试样的变形进行精确测量。设备可以完成的试验包括单轴压缩试验、三轴压缩试验、三轴流变试验、循环加卸载试验以及稳态与瞬态条件下的渗透性测试。试验机由于其独特的设置可以同时对2个试样进行相同围压和水压，不同轴压和温度的试验，大大节约了试验的时间成本，尤其是长期力学性能试验，同时更为有效地减少试验的系统误差。近一年的试验，表明该试验机稳定性好，测量精度高，是一套功能齐全，使用方便的试验装置。
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| 关 键 词： | 软岩 流变 温度?渗流?应力耦合 岩石力学 |
| 收稿时间： | 2017-10-13 |
Development of a parallel-linkage triaxial testing machine for THM coupling in soft rock |
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| CHEN Wei-zhong,LI Fan-fan,MA Yong-shang,LEI Jiang,YU Hong-dan,XING Tian-hai,ZHENG You-lei,JIA Xiao-dong.Development of a parallel-linkage triaxial testing machine for THM coupling in soft rock[J].Rock and Soil Mechanics,2019,40(3):1213-1220. |
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| Authors: | CHEN Wei-zhong LI Fan-fan MA Yong-shang LEI Jiang YU Hong-dan XING Tian-hai ZHENG You-lei JIA Xiao-dong |
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| Institution: | 1. State Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan, Hubei 430071, China; 2. University of Chinese Academy of Science, Beijing, 100049; 3. Geotechnical and Structural Engineering Research Center, Shandong University, Jinan, Shandong 250061, China; 4. Jisan Coal Mine, Yanzhou Coal Industry Co., Ltd., Zoucheng, Shandong 273512, China |
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| Abstract: | In order to study the long-term THM coupled behaviour of soft rock, a parallel-linkage triaxial testing machine for THM coupling in soft rock is developed. This machine is particularly applicable to study the mechanical properties of soft rock under different temperatures and various stress conditions. Using the technology of servo-control, this machine can automatically stabilize voltage and record experimental data. It can also achieve temperature gradient loading, pore pressure gradient loading and independent stress gradient loading. Furthermore, high-precision LVDT sensor is also implemented to measure the deformation. This machine can complete these tests including uniaxial compression test, triaxial compression test, triaxial rheological test, cyclic loading and unloading test, penetration test under steady state and transient conditions. It can simultaneously implement the mechanical tests of two samples with the same confining pressure, the same pore water pressure, different axial pressures and different temperatures, thanks to the unique design of this machine. It can save time because of this feature, especially for the long-term mechanical test. In addition, it can also reduce the system errors. The results of these tests during last year show that this machine is a convenient machine with complete functions, good stability and high precision. |
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| Keywords: | soft rock rheology THM coupling rock mechanics |
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