摘要
深部岩石力学是深地工程实践的理论基础,深部环境下岩石剪切强度测试是探索深部岩石力学行为的核心手段之一。该文设计了一套针对圆柱试样的直接剪切实验的新型夹具,该夹具配合MTS 815岩石力学测试系统使用可实现深部岩石力学研究中的高温高压剪切试验、高温条件下的剪切流变测试以及岩石各向异性特征的剪切测试,亦可应用于普通的压力实验机来开展普通直接剪切实验。该新型夹具的设计和使用拓展了大型精密设备的使用功能,使设备资源得到充分利用。在科研层面上满足了深地科学的研究需要;在实验教学层面丰富了实践教学项目,顺应了当下高校实践教学改革的需求,提高了学生创新思维能力、培养了学生以实践需求为导向的解决问题的能力,并进一步推动了创新性实验设计。
Deep rock mechanics is the theoretical basis of deep engineering practice, and implementing shear strength tests of rocks under the deep environment is critical for investigating deep rock mechanic behaviors. A set of fixture is designed for direct shear tests applying to cylindrical specimens. Together with MTS 815 rock mechanics test system, the fixture can realize a series of shear tests under high temperatures and pressures, i.e. shear tests, shear creep tests and shear tests on the anisotropy of rocks. The fixture can also be used in normal press machines to conduct conventional direct shear tests. The design and application of the fixture extends the function of large and sophisticated instruments to fully utilize experimental resources, and serves as an effective tool to study deep rock mechanics. Meanwhile, applying the new fixture in experiment teaching enriches experiment projects, which is in line with practical educational reforms in university. It also nurtures the students’ creative thinking and their ability to solve practical problems, which further facilitates the development of innovative experiment design.
作者
刘洋
艾婷
张朝鹏
覃黎
张茹
LIU Yang;AI Ting;ZHANG Zhaopeng;QIN Li;ZHANG Ru(MOE Key Laboratory of Underground Science and Engineering,Sichuan University,Chengdu 610225,China;College of Hydraulic and Hydroelectric Engineering,Sichuan University,Chengdu 610065,China)
出处
《实验科学与技术》
2020年第5期85-90,共6页
Experiment Science and Technology
基金
四川省青年科技创新研究团队资助项目(2017TD0007)
四川大学“实验技术研究项目”(SCU201104).
关键词
高温
直接剪切测试
夹具
设计
high temperature
direct shear test
fixtures
design
