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wæø5Q¤x.bbs.3c3t.comßN¥lFXk} 重庆海特小天才数字试验系统软件为您提供.www.hiteksoft.comwæø5Q¤x.bbs.3c3t.comßN¥lFXk}
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一、试验目的wæø5Q¤x.bbs.3c3t.comßN¥lFXk}
wæø5Q¤x.bbs.3c3t.comßN¥lFXk}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。wæø5Q¤x.bbs.3c3t.comßN¥lFXk}wæø5Q¤x.bbs.3c3t.comßN¥lFXk}二、试验标准wæø5Q¤x.bbs.3c3t.comßN¥lFXk}执行规程:《公路路基路面现场测试规程》JTJ 059-1995wæø5Q¤x.bbs.3c3t.comßN¥lFXk}wæø5Q¤x.bbs.3c3t.comßN¥lFXk}三、指标wæø5Q¤x.bbs.3c3t.comßN¥lFXk}压实度。wæø5Q¤x.bbs.3c3t.comßN¥lFXk}wæø5Q¤x.bbs.3c3t.comßN¥lFXk}四、试验方法wæø5Q¤x.bbs.3c3t.comßN¥lFXk}1、wæø5Q¤x.bbs.3c3t.comßN¥lFXk}
计算干密度wæø5Q¤x.bbs.3c3t.comßN¥lFXk}wæø5Q¤x.bbs.3c3t.comßN¥lFXk}ρ——湿密度(g/cm3)wæø5Q¤x.bbs.3c3t.comßN¥lFXk}mt——试洞中取出的土样质量(g)wæø5Q¤x.bbs.3c3t.comßN¥lFXk}mb——填满试洞所需砂的质量(g)wæø5Q¤x.bbs.3c3t.comßN¥lFXk}ρs——量砂密度(g/cm3)wæø5Q¤x.bbs.3c3t.comßN¥lFXk}ρd——干密度(g/cm3)wæø5Q¤x.bbs.3c3t.comßN¥lFXk}w——含水率(%)wæø5Q¤x.bbs.3c3t.comßN¥lFXk}wæø5Q¤x.bbs.3c3t.comßN¥lFXk}2、wæø5Q¤x.bbs.3c3t.comßN¥lFXk}
计算压实度wæø5Q¤x.bbs.3c3t.comßN¥lFXk}压实度 = 干密度 / 最大干密度wæø5Q¤x.bbs.3c3t.comßN¥lFXk}wæø5Q¤x.bbs.3c3t.comßN¥lFXk}3、wæø5Q¤x.bbs.3c3t.comßN¥lFXk}
计算代表值、合格率wæø5Q¤x.bbs.3c3t.comßN¥lFXk}按照《公路工程质量检验评定标准》附录B。wæø5Q¤x.bbs.3c3t.comßN¥lFXk}wæø5Q¤x.bbs.3c3t.comßN¥lFXk}K——代表值wæø5Q¤x.bbs.3c3t.comßN¥lFXk}k——平均值wæø5Q¤x.bbs.3c3t.comßN¥lFXk}ta——保证率wæø5Q¤x.bbs.3c3t.comßN¥lFXk}S——标准差wæø5Q¤x.bbs.3c3t.comßN¥lFXk}n——检测点数wæø5Q¤x.bbs.3c3t.comßN¥lFXk}K0——标准值wæø5Q¤x.bbs.3c3t.comßN¥lFXk}wæø5Q¤x.bbs.3c3t.comßN¥lFXk}五、合格判定wæø5Q¤x.bbs.3c3t.comßN¥lFXk}1、wæø5Q¤x.bbs.3c3t.comßN¥lFXk}
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。wæø5Q¤x.bbs.3c3t.comßN¥lFXk}2、wæø5Q¤x.bbs.3c3t.comßN¥lFXk}
当代表值小于标准值,或有单点值小于极值,为不合格。QQ:654590599wæø5Q¤x.bbs.3c3t.comßN¥lFXk}wæø5Q¤x.bbs.3c3t.comßN¥lFXk}wæø5Q¤x.bbs.3c3t.comßN¥lFXk}wæø5Q¤x.bbs.3c3t.comßN¥lFXk}wæø5Q¤x.bbs.3c3t.comßN¥lFXk}wæø5Q¤x.bbs.3c3t.comßN¥lFXk}