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通过对常德—张家界高速公路上3个试验路段(弱膨胀土填料路基试验路段、膨胀土改良处理路基试验路段、膨胀土加筋处理试验路段)施工过程中的竖直沉降和水平位移观测,得出膨胀土路基及其改良路基、加筋路基在施工过程中的变形特性规律。
Through the vertical settlement and horizontal displacement observation in the three pilot sections of Changde-Zhangjiajie expressway (weak expansive soil filling embankment test section, expansive soil improvement subgrade test section and expansive soil reinforced treatment test section) during the construction process, The deformation characteristics of the expansive soil roadbed and its improved subgrade and reinforced subgrade during construction are presented.