进来在学习JTG E51-2009,看到关于无侧限抗压强度计算,当变异系数Cv超过规定值时,则需按允许误差10%和90%的概率重新计算所需的试件数量,公式如下·éV+¨FÐobbs.3c3t.comqHE(kÂ=
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n=t1-a/2 Cv│e│·éV+¨FÐobbs.3c3t.comqHE(kÂ=
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假如我做的是小试件,规定Cv≤6%,可我最后算下来是7.5%,请问那我应该怎么计算试件数量n?·éV+¨FÐobbs.3c3t.comqHE(kÂ=
谢谢!·éV+¨FÐobbs.3c3t.comqHE(kÂ=