9ðNô|c bbs.3c3t.com*¡Mí_}
9ðNô|c bbs.3c3t.com*¡Mí_}
9ðNô|c bbs.3c3t.com*¡Mí_}
9ðNô|c bbs.3c3t.com*¡Mí_} 重庆海特小天才数字试验系统软件为您提供.www.hiteksoft.com9ðNô|c bbs.3c3t.com*¡Mí_}
9ðNô|c bbs.3c3t.com*¡Mí_}9ðNô|c bbs.3c3t.com*¡Mí_}
一、试验目的9ðNô|c bbs.3c3t.com*¡Mí_}
9ðNô|c bbs.3c3t.com*¡Mí_}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。9ðNô|c bbs.3c3t.com*¡Mí_}9ðNô|c bbs.3c3t.com*¡Mí_}二、试验标准9ðNô|c bbs.3c3t.com*¡Mí_}执行规程:《公路路基路面现场测试规程》JTJ 059-19959ðNô|c bbs.3c3t.com*¡Mí_}9ðNô|c bbs.3c3t.com*¡Mí_}三、指标9ðNô|c bbs.3c3t.com*¡Mí_}压实度。9ðNô|c bbs.3c3t.com*¡Mí_}9ðNô|c bbs.3c3t.com*¡Mí_}四、试验方法9ðNô|c bbs.3c3t.com*¡Mí_}1、9ðNô|c bbs.3c3t.com*¡Mí_}
计算干密度9ðNô|c bbs.3c3t.com*¡Mí_}9ðNô|c bbs.3c3t.com*¡Mí_}ρ——湿密度(g/cm3)9ðNô|c bbs.3c3t.com*¡Mí_}mt——试洞中取出的土样质量(g)9ðNô|c bbs.3c3t.com*¡Mí_}mb——填满试洞所需砂的质量(g)9ðNô|c bbs.3c3t.com*¡Mí_}ρs——量砂密度(g/cm3)9ðNô|c bbs.3c3t.com*¡Mí_}ρd——干密度(g/cm3)9ðNô|c bbs.3c3t.com*¡Mí_}w——含水率(%)9ðNô|c bbs.3c3t.com*¡Mí_}9ðNô|c bbs.3c3t.com*¡Mí_}2、9ðNô|c bbs.3c3t.com*¡Mí_}
计算压实度9ðNô|c bbs.3c3t.com*¡Mí_}压实度 = 干密度 / 最大干密度9ðNô|c bbs.3c3t.com*¡Mí_}9ðNô|c bbs.3c3t.com*¡Mí_}3、9ðNô|c bbs.3c3t.com*¡Mí_}
计算代表值、合格率9ðNô|c bbs.3c3t.com*¡Mí_}按照《公路工程质量检验评定标准》附录B。9ðNô|c bbs.3c3t.com*¡Mí_}9ðNô|c bbs.3c3t.com*¡Mí_}K——代表值9ðNô|c bbs.3c3t.com*¡Mí_}k——平均值9ðNô|c bbs.3c3t.com*¡Mí_}ta——保证率9ðNô|c bbs.3c3t.com*¡Mí_}S——标准差9ðNô|c bbs.3c3t.com*¡Mí_}n——检测点数9ðNô|c bbs.3c3t.com*¡Mí_}K0——标准值9ðNô|c bbs.3c3t.com*¡Mí_}9ðNô|c bbs.3c3t.com*¡Mí_}五、合格判定9ðNô|c bbs.3c3t.com*¡Mí_}1、9ðNô|c bbs.3c3t.com*¡Mí_}
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。9ðNô|c bbs.3c3t.com*¡Mí_}2、9ðNô|c bbs.3c3t.com*¡Mí_}
当代表值小于标准值,或有单点值小于极值,为不合格。QQ:6545905999ðNô|c bbs.3c3t.com*¡Mí_}9ðNô|c bbs.3c3t.com*¡Mí_}9ðNô|c bbs.3c3t.com*¡Mí_}9ðNô|c bbs.3c3t.com*¡Mí_}9ðNô|c bbs.3c3t.com*¡Mí_}9ðNô|c bbs.3c3t.com*¡Mí_}