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6ê)Q[bbs.3c3t.com:Bûô¹5Hþ` 重庆海特小天才数字试验系统软件为您提供.www.hiteksoft.com6ê)Q[bbs.3c3t.com:Bûô¹5Hþ`
6ê)Q[bbs.3c3t.com:Bûô¹5Hþ` 6ê)Q[bbs.3c3t.com:Bûô¹5Hþ`
一、试验目的6ê)Q[bbs.3c3t.com:Bûô¹5Hþ`
6ê)Q[bbs.3c3t.com:Bûô¹5Hþ` 测定基层(或底基层)、砂石路面及路基土的各种材料压实层的密度和压实度。6ê)Q[bbs.3c3t.com:Bûô¹5Hþ` 6ê)Q[bbs.3c3t.com:Bûô¹5Hþ` 二、试验标准6ê)Q[bbs.3c3t.com:Bûô¹5Hþ` 执行规程:《公路路基路面现场测试规程》JTJ 059-19956ê)Q[bbs.3c3t.com:Bûô¹5Hþ` 6ê)Q[bbs.3c3t.com:Bûô¹5Hþ` 三、指标6ê)Q[bbs.3c3t.com:Bûô¹5Hþ` 压实度。6ê)Q[bbs.3c3t.com:Bûô¹5Hþ` 6ê)Q[bbs.3c3t.com:Bûô¹5Hþ` 四、试验方法6ê)Q[bbs.3c3t.com:Bûô¹5Hþ` 1、6ê)Q[bbs.3c3t.com:Bûô¹5Hþ`
计算干密度6ê)Q[bbs.3c3t.com:Bûô¹5Hþ` 6ê)Q[bbs.3c3t.com:Bûô¹5Hþ` ρ——湿密度(g/cm3)6ê)Q[bbs.3c3t.com:Bûô¹5Hþ` mt——试洞中取出的土样质量(g)6ê)Q[bbs.3c3t.com:Bûô¹5Hþ` mb——填满试洞所需砂的质量(g)6ê)Q[bbs.3c3t.com:Bûô¹5Hþ` ρs——量砂密度(g/cm3)6ê)Q[bbs.3c3t.com:Bûô¹5Hþ` ρd——干密度(g/cm3)6ê)Q[bbs.3c3t.com:Bûô¹5Hþ` w——含水率(%)6ê)Q[bbs.3c3t.com:Bûô¹5Hþ` 6ê)Q[bbs.3c3t.com:Bûô¹5Hþ` 2、6ê)Q[bbs.3c3t.com:Bûô¹5Hþ`
计算压实度6ê)Q[bbs.3c3t.com:Bûô¹5Hþ` 压实度 = 干密度 / 最大干密度6ê)Q[bbs.3c3t.com:Bûô¹5Hþ` 6ê)Q[bbs.3c3t.com:Bûô¹5Hþ` 3、6ê)Q[bbs.3c3t.com:Bûô¹5Hþ`
计算代表值、合格率6ê)Q[bbs.3c3t.com:Bûô¹5Hþ` 按照《公路工程质量检验评定标准》附录B。6ê)Q[bbs.3c3t.com:Bûô¹5Hþ` 6ê)Q[bbs.3c3t.com:Bûô¹5Hþ` K——代表值6ê)Q[bbs.3c3t.com:Bûô¹5Hþ` k——平均值6ê)Q[bbs.3c3t.com:Bûô¹5Hþ` ta——保证率6ê)Q[bbs.3c3t.com:Bûô¹5Hþ` S——标准差6ê)Q[bbs.3c3t.com:Bûô¹5Hþ` n——检测点数6ê)Q[bbs.3c3t.com:Bûô¹5Hþ` K0——标准值6ê)Q[bbs.3c3t.com:Bûô¹5Hþ` 6ê)Q[bbs.3c3t.com:Bûô¹5Hþ` 五、合格判定6ê)Q[bbs.3c3t.com:Bûô¹5Hþ` 1、6ê)Q[bbs.3c3t.com:Bûô¹5Hþ`
当代表值大于标准值,且全部单点值大于极值,按不低于规定值减2个百分数的单点值计算合格率。6ê)Q[bbs.3c3t.com:Bûô¹5Hþ` 2、6ê)Q[bbs.3c3t.com:Bûô¹5Hþ`
当代表值小于标准值,或有单点值小于极值,为不合格。QQ:6545905996ê)Q[bbs.3c3t.com:Bûô¹5Hþ` 6ê)Q[bbs.3c3t.com:Bûô¹5Hþ` 6ê)Q[bbs.3c3t.com:Bûô¹5Hþ` 6ê)Q[bbs.3c3t.com:Bûô¹5Hþ` 6ê)Q[bbs.3c3t.com:Bûô¹5Hþ` 6ê)Q[bbs.3c3t.com:Bûô¹5Hþ`