摘要
从大量的点荷载实验入手,对点荷载实验得到的抗压强度进行了统计分析,同时用相差系数分析了点荷载实验得到的抗压强度与室内实验得到的抗压强度的接近性,并计算分析了点荷载转化系数的特点。研究结果表明,点荷载试验强度与单轴抗压强度之间有良好的相关性,但其转化系数的取值在22周围波动,精确的转化系数需要做一定的试验求得。
The data statistics of rock compression strength ob- tained by a large number of point load tests was made, the prox- imity of rock compression strength obtained by point load experi- ment and that obtained by lab test was analyzed with relative difference coefficient, and the characteristics of strength conver- sion factor for rock point load test were analyzed. The studied re- sults indicated that there was good relativity between rock com- pression strength obtained by point load experiment and that ob- tained by uniaxial compression test, but the value of strength conversion factor varied about 22, and the determination of its exact value need more tests.
出处
《矿业研究与开发》
CAS
北大核心
2012年第3期36-38,共3页
Mining Research and Development
关键词
点荷载强度
单轴抗压强度
相差系数
转化系数
Point load strength, Uniaxial compressive strength,Relative difference coefficient, Conversion factor
