声发射技术在岩土工程研究生实验教学过程中的应用  

Application of Acoustic Emission Technique in the Experimental Teaching Process for Geotechnical Engineering Postgraduates

作　　者：于洋[1] 洪鹏 刁心宏[1] YU Yang;HONG Peng;DIAO Xinhong(Key Laboratory of Geotechnical Engineering Infrastructure Safety and Control,School of Civil Engineering and Architecture,East China Jiaotong University,Nanchang 330013,China)

机构地区：[1]华东交通大学土木建筑学院岩土工程基础设施安全与控制重点实验室,南昌330013

出　　处：《实验室研究与探索》2020年第7期169-173,共5页Research and Exploration In Laboratory

基　　金：国家自然科学基金项目(51509092);江西省自然科学基金重点研发项目(20181BBG70052);江西省教改课题重点项目(JXJG-18-5-11)。

摘　　要：利用声发射信息采集技术,研究岩石在荷载作用下的应力应变状态,探究岩石损伤的声发射信号特征以及岩石破坏机制。开设科学探究性实验教学项目,让学生了解岩石损伤、破坏下的声发射概念、特征、产生原因及测试方法,学习声发射信息采集系统和常规岩石三轴测试系统配合使用的实验原理和理论方法,掌握声发射仪器设备的操作过程。通过该教学实验和相关的配套设施,培养学生的科研素养和自主探究能力,增强学生的科学探索精神与创新精神。Using acoustic emission information acquisition technology,the stress and strain state of rock under load are studied,and the acoustic emission signal characteristics and rock failure mechanism of rock damage are explored.A scientific inquiry experiment teaching program is developed to let students understand the concept,characteristics,causes and test methods of acoustic emission under rock damage and destruction,and learn experimental principles and theoretical methods for the use of acoustic emission information acquisition system and conventional rock triaxial test system,master proficiently in the operation process of acoustic emission equipment.Through the teaching experiment and related supporting facilities,the students'scientific research and independent inquiry ability will be cultivated,and the students'scientific exploration spirit and innovative spirit will be enhanced.

关 键 词：声发射 岩土工程 应力波 岩石损伤 实验教学 

分 类 号：G642.0[文化科学—高等教育学]