文献类型：期刊文献

英文题名：Experimental Rock Stability Assessment Using the Frozen-Thawing Test

作者：Du, Yan[1];Xie, Mo-wen[1];Jiang, Yu-jing[2];Li, Bo[3];Chicas, Santos[2]

机构：[1]Univ Sci & Technol Beijing, Sch Civil Engn, Beijing, Peoples R China;[2]Nagasaki Univ, Grad Sch Engn, Nagasaki, Japan;[3]Shaoxing Univ, Rock Mech & Geohazards Ctr, Shaoxing, Peoples R China

年份：2017

卷号：50

期号：4

起止页码：1049

外文期刊名：ROCK MECHANICS AND ROCK ENGINEERING

收录：SCI-EXPANDED(收录号：WOS:000401440700015)、、EI(收录号：20165103156001)、Scopus(收录号：2-s2.0-85006355842)、WOS

基金：The authors gratefully acknowledge the financial support from the National Natural Science Foundation of China under Grant Nos. 41372370 and 41572274, China Postdoctoral Science Foundation under Grant No. 2016M591078, and the Fundamental Research Funds for the Central Universities of China under Grant No. FRF-TP-16-014A1.

语种：英文

外文关键词：Unstable rock; Stability assessment; Laser Doppler vibrometer (LDV); Strength degradation; Natural vibration frequency

外文摘要：The experiment conducted in this study was called the frozen–thawing test (FTT). In this test, two toughened glass blocks are used, such as the lower glass represents the bedrock and the upper glass the sliding body. A shallow tank was carved on the upper surface of the lower block. Water was injected to fill this tank, and then the upper block was positioned on top of the lower block. Both blocks were placed in a freezer at -20 °C for 48 hours. After several attempts, it was found that for a constant amount of water, the upper block started to slide at almost the same point of the thawing process.