摘要
抗张强度是《煤矿防治水规程》中防水煤柱重要的计算参数,准确地确定其值对矿井的安全生产和合理开发煤炭资源都具有十分重要的意义。然而,抗张强度和抗拉强度是否指的同一个参数,如何对其进行测试,至今仍困惑着国内很多研究人员。为了说明这个问题,对《煤矿防治水规程》中涉及到抗张强度计算的2个模型进行了受力分析和公式推导,研究得出了规程中所用到的抗张强度参数实质上是指的《岩石力学》中的抗拉强度,规范了该参数的名称,并对岩石和岩体抗拉强度的测试方法进行了评述。
Tension strength is an important calculation parameter in water-proof pillar design stipulated in Water Prevention Regulations for Coal Mine.Its precise value is very important for safety mining and rational coal resource development.However,whether tension strength is tensile strength or not is a problem for many researchers.For the problem,this paper made force analysis and formula deduction of 2 models calculated by tension strength in the Regulation.Result showed that tension strength in the Regulation was actually tensile strength in rock mechanics,which standardized name of the parameter.It also commented test methods for tensile strength of rock and rock mass.
出处
《煤矿开采》
北大核心
2010年第3期18-21,共4页
Coal Mining Technology
关键词
抗张强度
抗拉强度
岩石
岩体
原位测试
tension strength
tensile strength
rock
rock mass
in-situ test
