Research on Short-Term prediction precursors of Bedding-Layered sandstone based on strain monitoring

被引:0
作者
Yi, Zhiqiang [1 ,2 ,3 ]
Yin, Yueping [3 ]
Li, Shouding [4 ]
Wang, Wenpei [3 ]
Zhang, Mingzhi [3 ]
Mao, Tianqiao [4 ]
Zhang, Yixiang [3 ]
Wang, Xuebing [5 ]
Gao, Shaohua [3 ]
机构
[1] Chinese Acad Geol Sci, Beijing 100037, Peoples R China
[2] China Univ Geosci Beijing, Sch Engn & Technol, Beijing 100083, Peoples R China
[3] China Inst Geoenvironm Monitoring, Beijing 100081, Peoples R China
[4] Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China
[5] Nanjing Hydraul Res Inst, Nanjing 210029, Peoples R China
基金
中国国家自然科学基金;
关键词
Nonlinear Rock Mechanics; Bedding-Layered Sandstone; Strain Monitoring; Short-Term Prediction Precursors; Advanced Prediction Failure Time; ROCK MASS; EARTHQUAKES;
D O I
10.1016/j.engfracmech.2025.111071
中图分类号
O3 [力学];
学科分类号
08 ; 0801 ;
摘要
This study focuses on short-term prediction precursors for the failure of bedding-layered sandstone. By employing various monitoring techniques, including a testing machine, visible light and thermal infrared cameras, acoustic emission (AE) sensors, and strain gauges. The results indicate that the failure process of bedding-layered sandstone followed a type II rock failure mode, with the main rupture surface forming along bedding planes and releasing frictional heat energy and AE signals. The significant precursors for the failure of bedding-layered sandstone appeared during periods of slow lateral strain increase, with an advanced prediction failure time of 225 s during the stable stage in this study. The findings are valuable for improving predictive capabilities in rock mass system issues, especially for the advance prediction of failure time in high and steep dangerous rocks with well-developed bedding planes.
引用
收藏
页数:12
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