一、概述三叉街至乌龙江公路位于福州市郊,全长11.2公里,是福州至厦门国道线的起点段。随着工农业生产的迅速发展,交通运输日益繁重,混合交通量每昼夜达到4000辆以上,且重型车不断增加,但老路技术状况差,填土高度不足,地下水位高,边沟长期积水,路基下淤泥层深最大 I. Overview Trunk Street to Wulongjiang Road is located in the suburbs of Fuzhou, a total length of 11.2 kilometers, is the starting point of Fuzhou to Xiamen State Line. With the rapid development of industrial and agricultural production, transportation is becoming more and more heavy. The mixed traffic volume reaches more than 4,000 vehicles every day and night and the number of heavy vehicles keeps increasing. However, the old roads have poor technical conditions, lack of filling height, high groundwater level, Under the subgrade silt depth largest