液塑限自动计算

中铁三局集团第*工程有限公司工程试验中心,,,,,,,,,,,,,,

液塑限联合测定试验报告,,,,,,,,,,,,,,

委托单位:,,,,,,,报告编号:,,,,,,,

工程名称:,,,,,,,委托编号:,,,,,,,

取样深度:,,\,,,,,试验日期:,,,,,,,

使用部位:,,,,,,,报告日期:,,,,,,,

仪器使用情况,名称,,型号,,编号,,示值范围,,分辨力,,温度,,,相对湿度

及环境条件,光电式液塑限测定仪,,FG-Ⅲ型,,—,,—,,—,,23℃,,,65℃

试验结果,,,,,,,,,,,,,,

试验次数,,,,1,,,,2,,,,3,,

入土深度（mm）,,h1,,4.0,,,,7.3,,,,16.2,,

,,h2,,3.9,,,,7.4,,,,16.2,,

,,h=1/2×(h1+h2),,4.0,,,,7.4,,,,16.2,,

含水量,,盒号,,41,,16,,27,,30,,15,,39

,,盒质量(g),,16.44,,15.99,,15.55,,15.70,,16.10,,16.20

,,盒+湿土质量(g),,36.49,,38.19,,37.18,,38.24,,42.74,,41.00

,,盒+干土质量(g),,33.67,,35.06,,33.62,,34.59,,37.61,,36.23

,,水分质量(g),,2.82,,3.13,,3.56,,3.65,,5.13,,4.77

,,干土质量(g),,17.23,,19.07,,18.07,,18.89,,21.51,,20.03

,,含水率ω(%),,16.4,,16.4,,19.7,,19.3,,23.8,,23.8

,,平均含水率(%),,16.4,,,,19.5,,,,23.8,,

直线1-2,,16.2,7.4,,,23.8,19.5,,,,,,,

直线1-3,,16.2,4.0,,,23.8,16.4,,,,,,,

中线,,16.2,2.0,,,23.8,13.9,,,,,,,

曲线方程,,lgh=A*lgw+B,,,,,,,17mm液限WL=,,,24.1,%,

直线1-2A=,,(lgh1-lgh2)/(lgw1-lgw2)=,,3.966008463,B=,-4.250000848,,,10mm液限WL=,,,21.0,%,

,,2mm对应的含水量:,,14,,,,,2mm塑限WP=,,,13.9,%,

直线1-3A=,,(lgh1-lgh3)/(lgw1-lgw3)=,,3.78968736,B=,-4.00728128,,,塑性指数IP=,,,7.1,,

,,2mm对应的含水量:,,13.7,,,,,,,,,,

2mm对应的含水量平均值:,,,,13.9,,差值=,0.3,,,,,,,

中线A=,,(lgh1-lg2)/(lgw1-lgE30)=,,3.86380258,B=,-4.109306584,,,,,,,,

,,2mm对应的含水量:,,13.9,,13.9,,,,17,17.0,1,,

,,10mm对应的含水量:,,21,,,,,,1,24.1,24.1,,

,,17mm对应的含水量:,,24.1,,,,,,10,10.0,1,,

公式推导,,该公式是以10为底的对数,,,lgw=(lgh-B)/A,,,,,1,21.0,21,,

,,,,,W=10(lgh-B)/A,,,,,2,2.0,1,,

,,,,,,,,,,1,13.9,13.9,,

检测评定依据：,,,,,,,试验意见：.,,,,,,,

《铁路工程土工试验规程》TB10