公路路基含水量预估方法研究

为了确定不同降水可靠度条件下的路基含水量变化区间,应用统计学原理对试验路所在地区降水量历史数据进行分析,采用区间估计法计算了不同可靠度条件下的降水量区间。并在试验路段埋设湿度传感器,对同一时期路基含水量和降水量进行同步实时观测,建立了降水量与路基含水量之间的函数关系式。结果表明：路基含水量与降水量之间具有较好的相关性,可靠度为95%、90%、85%时,某地区降水量区间分别为14.8,19.6],15.2,19.2],15.4,19.0]。

Estimate of Subgrade Moisture Content

In order to determine the reliability of different precipitation conditions subgrade water content range, the application of statistical theory test road area on historical precipitation data were ana- lyzed using the interval estimation method under different rainfall reliability interval. The humidity sen- sors were buried in the test roads to observe the subgrade moisture content and precipitation during the same period. Then a function between subgrade moisture content and precipitation was established to ob- tain subgrade moisture content under different rainfall reliability. The results show that there was good correlation between asubgrade moisture content and precipitation, the precipitation interval were 14. 8, 19.6 ], 15.2,19.2 ] and 15.4 , 19. 0 ] with the reliability of 95%, 90%, 85%.