The Analysis of the Relationship between Height-diameter Ratio and Rock Uniaxial Compressive Strength

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外文摘要：Rock uniaxial compressive strength,one of the most important parameters of physical-mechanical properties of rock,which can reflect the hard degree of rock immediately,and height-diameter ratio can reflect rock uniaxial compressive strength as important property.When height-diameter ratio ranges from 2 ～ 2.5 ruled by national standard and ranges from 2.5 ～ 3 ruled by international standard,rock compressive strength is close to the real uniaxial compressive strength gradually.In order to exptore the specific influence from different height-diameter ratio to rock uniaxial compressive strength in detail,in this paper,we had simulation compressive tests to rock samples with different height-diameter ratio in 20 teams based on RFPA2D simulation software.Through the data acquisition,contrast,analysis,finishing,we have got the concrete changing laws of rock compressive strength followed by height-diameter ratio,thus provides powerful evidence to the researching of the hard degree of rock in practical engineering.

外文关键词：

height-diameter ratiocompressive strengthsimulation

作者：

Li Sheng、Zhang Yin、Luo Mingkun、Rong Hai

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作者单位：

College of Mining, Liaoning Technical University, Fuxin, 123000, China

会议名称：

International symposium on rock mechanics and mine dynamic disaster prevention

会议地点：

Fuxin(CN)

会议母体文献：

Proceedings of international symposium on rock mechanics and mine dynamic disaster prevention

页码：

383-388

出版时间：

2013