Application of Rock Kaiser Effect in Deep In-situ Stress Test

2018 International Conference on Civil, Architecture and Disaster Prevention

土木建筑工程

Qin, Baohua^1

Infrastructure Department, Henan Medical College, Zhengzhou, Henan

451191, China^1

关键词: Acoustic experiments;    Co-ordinate transformation;    High stress area;    Kaiser effect;    Primary stress;    Relative positions;    Stress values;    Tectonic stress;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/218/1/012119/pdf
DOI  :  10.1088/1755-1315/218/1/012119

学科分类：土木及结构工程学

来源: IOP

【 摘 要 】

In order to solve the serious roadway failure in Yaoqiao coal mine, Kaiser effect was used to measure the in-situ stress in level-800m roadway. Through making samples 6 special directions on the beamed rock cores and doing acoustic experiment, the unilateral plus stress values on each direction are obtained. Through coordinate transformation, the magnitude and direction of the primary stress of the original rock were calculated. The result shows that level-800m belongs to high stress area, and there exists certain tectonic stress. The relative position of horizontal maximum and minimum ground stress is determined, which provides reference for the roadway layout and support in Yaoqiao mine.