公路路基含水量预估方法研究

Estimate of Subgrade Moisture Content

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]。

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%.