Study on Acoustic Emission In-situ Stress Measurement Techniques Based on Plane Stress Condition
In-situ stress is the key parameter for underground and slope rock engineering design optimization. Hydraulic fracturing method and trepanning stress relieving method are the two main in-situ stress measurement methods for the present, but both of the two methods have some disadvantages such as strict operating conditions, complicated operations, high cost, etc. which have not been overcome till now. With a case of high-steep open pit slope, the paper begins with hydraulic fracturing method to measure the in-situ stress and then, on this basis, based on plane stress condition, the paper adopts acoustic emission method to measure the horizontal maximum principle stress and its direction. It indicates that the test results of acoustic emission are consistent with that of hydraulic fracturing method.
In-situ stress measurement Acoustic emission Plane stress Hydraulic fracturing method Trepanning stress relieving method
QIAO Lan XU Zhen-hua ZHAO Kui LI Yuan LI Yang WANG Ke-jia CAI Hui
University of Science & Technology Beijing, Beijing, 100083, China University of Science & Technology Beijing, Beijing, 100083, China China Nerin Engineering Co., Ltd. Jiangxi University of Science and Technology, Ganzhou, 341000, China
国际会议
The First International Symposium on Mine Safety Science and Engineering (首届矿山安全科学与工程学术会议)
北京
英文
1396-1404
2011-10-27（万方平台首次上网日期，不代表论文的发表时间）