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新疆地区公路路基含水量年变化规律

, PP. 27-32

Keywords: 道路工程,路基含水量,湿度传感器,跟踪观测

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Abstract:

针对路基含水量年变化规律的地区差异性问题,在新疆地区典型路段埋设湿度传感器,对路基含水量进行观测,分析路基含水量随时间变化规律。通过路基含水量观测试验,研究了新疆不同地区路基含水量年变化范围及原因,采用双峰值函数对路基含水量随时间变化关系进行了拟合,得出了新疆各地区路基含水量年变化规律。结果表明东疆、北疆、南疆地区路基含水量变化范围分别为2.47%~5.25%、1.38%~4.90%、2.06%~3.98%;由于新疆地区年降雨量小,蒸发量大,导致路基含水量最大的季节不在雨季,东疆与北疆地区路基含水量较大的季节在春融季节的3月~5月,以及雨季过后蒸发量相对较小的8月~11月,南疆地区路基含水量最大的季节只出现在春融季节的4月~6月。

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