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京沈高速公路宝坻—山海关段(以下简称京秦高速公路)长199km其中有16km软土路基,在建设期进行了技术处理。1999年通车后对这段软土路基在动态荷载作用下沉降规律进行了检测分析,并结合我国其他软土路基高速公路的经验,对其沉降规律进行了研究,为指导道路养护与维修提供科学依据,做到预防性养护。
Beijing-Shenyang Expressway Baodi-Shanhaiguan section (hereinafter referred to as Beijing-Qinhuangdao Expressway) 199km long, of which 16km soft soil subgrade is undergoing technical treatment during the construction period. The settlement law of the soft soil roadbed under dynamic load was tested and analyzed after it was opened to traffic in 1999. Based on the experience of other soft soil subgrade expressways in China, the settlement law of the subgrade was studied to provide scientific guidance for the maintenance and repair of roads Basis for preventive maintenance.