摘要
对砂岩、泥岩和混凝土在压、拉状态下的电磁辐射特性、规律进行了实验研究和分析。研究结果表明,砂岩、泥岩和混凝土在压、拉状态下能够产生电磁辐射;电磁辐射与载荷呈现正相关性;岩石电磁辐射具有记忆效应;在受载过程中最大电磁辐射强度与岩石强度间呈现正相关性。电磁辐射在测定原岩应力、测定围岩相对应力分布、评定煤岩体应力状态及其稳定性方面具有非常广阔的应用前景。
Testing study and analysis are carried on EME characteristics and rules of sandstone,modstone and concrete under compressive and tensive states. The results show that the EME of sandstone,modstone and concrete can be produced under the loading. The EME of rock is of positive relevance with the load and memory effect. The biggest intensity of EME is of positive relevance with strength of rock during the loading process. The EME can be applied to determine intact rockmass stress,relative stress distribution of surrounding rockmasses,and evaluate the stress state and stability of coal and rocks.
出处
《岩石力学与工程学报》
EI
CAS
CSCD
北大核心
2002年第10期1472-1477,共6页
Chinese Journal of Rock Mechanics and Engineering
基金
国家自然科学基金重点项目(50134040)
国家杰出青年基金(59925411)
国家"十五"攻关计划(2001BA803B0408)
江苏省自然科学基金(BK2001075)资助项目。
