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