水力发电2018，Vol.44Issue(1)：31-34,4.
微波照射下含水率对岩石强度弱化的影响
Effect of Different Moisture Content on Weakening Strength of Rock under Microwave Irradiation
摘要
Abstract
In order to investigate the influences of different moisture content on the failure characteristics and strength of rock under microwave irradiation,the evolution process of rock internal crack propagation under microwave irradiation is analyzed.The basalt specimens are divided into 4 groups according to different immersion time.Firstly,the microwave irradiation is carried out,and then the CT scanning test and shear strength test are conducted.The results show that,(a) the rock areas contained wave-absorbing materials are damaged under microwave irradiation,and the damage degree is proportional to water content and shows a localized characteristics when in the variation range of designed water content;and (b) with the increase of water content,the shear strength of rock is decreased,and the failure characteristic is that the crack increases near the shear surface of specimen,and after shear failure,the whole rock fracture is aggravated.关键词
岩石力学试验/抗剪强度/微波照射/CT扫描Key words
rock mechanical test/shear strength/microwave irradiation/CT scanning分类
建筑与水利引用本文复制引用
戴俊,李传净,杨凡,师百垒..微波照射下含水率对岩石强度弱化的影响[J].水力发电,2018,44(1):31-34,4.基金项目
国家自然科学基金资助项目(51174159) （51174159）
