回弹硬度对单轴抗压强度的估算

Estimation of Uniaxial Compressive Strength by Rebound Hardness

单轴抗压强度是岩体最基本的工程参数,在岩土工程中被广泛使用,但获取岩石单轴抗压强度需进行取样制样和试验的大量工作。间接获取岩石单轴强度的方式被广泛讨论和尝试,而通过施密特回弹试验无损条件下获取岩石的回弹值,快速有效的间接方式获取岩石单轴抗压强度的方法被广泛使用。分别对2种不同强度的水泥试件和杏仁玄武岩进行回弹值测定,获取并统计其对应单轴抗压强度值,拟合总结其回弹值与单轴抗压强度之间的关系。

Uniaxial compressive strength is the most basic engineering parameter of rock mass,which is widely used in geotechnical engineering.The indirect method of obtaining uniaxial strength of rock has been widely discussed and tried,and the method of obtaining uniaxial compressive strength of rock in a fast and effective indirect way has been widely discussed and used.In this paper,two kinds of rock-like materials with different strength and almond basalt from baihetan hydropower station were measured for their rebound values,and the corresponding uniaxial compressive strength values were obtained and counted,and the relationship between the rebound values and uniaxial compressive strength was fitted and summarized.