Application and analysis of reinforcement effect of soil between double-row piles in deep foundation pits located in 1^st terrace near Yangtze River

The cement-stabilized soil is simplified as bar element, and it is connected with double-row piles by a series of horizontal rings. Besides, the bearing moment and shear of cement-stabilized soil are considered too. Based on the model considering the pile-soil interaction of double-row piles, a method for calculating forces and deformation of supporting structure is proposed. In order to verify the correctness and practicality of the proposed method and to provide a useful reference for the design of similar excavations, the calculated result are compared with the observated data in specific deep foundation pits located in 1^st terrace near Yangtze River in Wuhan City.