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天津港的陆域基本上是吹填土经真空预压处理形成的,强度仍然较低,压缩性较大。由于车的载重量重、车流量大,该地区的道路在使用两三年左右后,局部出现了较大的不均匀沉降、甚至出现了波浪起伏的状态,严重影响道路的使用功能。为了分析和解决天津港超软土道路存在的问题,本文讨论了超软土道路地基变形的特点;分析探讨超软土地基上修建道路的设计理念问题;通过有限元分析对已建道路的沉降进行分析计算;分析了超软土地基产生波浪状破坏的机理。
The land area of Tianjin Port is basically formed by the vacuum preloading of dredger fill, the strength is still low and the compressibility is relatively large. Due to the heavy load of vehicles and heavy traffic, the roads in the area have been locally unevenly subsided after about two or three years of operation, and even wave undulations have occurred, seriously affecting the service functions of roads. In order to analyze and solve the problems of ultra-soft soil road in Tianjin Port, this paper discusses the characteristics of the deformation of ultra-soft soil roadbed; analyzes the design concept of the road construction on ultra-soft soil; analyzes the settlement of the built road by finite element analysis Analyzed and calculated; and analyzed the mechanism of wavy damage caused by ultra-soft soil foundation.