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自主研制了一种采用侧向和轴向受限实验方法测量膨润土膨胀应力的实验装置,得到了其在恒体积下的轴向和径向膨胀应力,提供了一种可以同时考虑温度、方向性条件影响下的膨润土膨胀力测定的实验装置,填补了土力学实验教学中的空白。实验验证了该装置的适用性和可靠性,便于实验操作。在以往装置的基础上通过分析获取了渗流作用和热环境条件下膨润土的膨胀力发展规律。该装置丰富了实验教学内容,完善了知识框架体系,是对土力学课程内容的拓展补充,有利于培养学生的动手实践能力。
An experimental device for measuring the expansion stress of bentonite by lateral and axial limited experimental methods was independently developed. The axial and radial expansion stress of the bentonite under constant volume was obtained, and an experimental device that can simultaneously consider temperature, directionality Under the influence of conditions, the experimental device for measuring the swelling force of bentonite filled up the gap in experimental teaching of soil mechanics. The experiment verifies the applicability and reliability of the device and facilitates the experimental operation. On the basis of the previous devices, the development of swelling force of bentonite under seepage and thermal environment was obtained through the analysis. The device enriches the content of experimental teaching and perfects the knowledge framework system, which is an extension of the content of soil mechanics and complements the practical practical ability of students.