STUDY ON INTERNAL STABILITY OF SOIL-NAILING WALL WITH LEADING MINI-PILE

With the characteristics such as simplification, promptness, decreasing the deformation of soil, increasing the stability of an excavation, leading mini-piles have been widely used for excavations in soft soil. But for the design of soil-nailing retaining wall with leading mini-piles, the role of leading mini-piles in the internal stability of soil-nail retaining wall is always neglected and design theory has been lagged behind engineering practice. Based on the failure pattern of soil-nail retaining wall with leading mini-piles and its calculation method, the program for calculating internal stability of soil-nail retaining wall with leading mini-piles has been designed.The developed program has been verfied effectively by engineering practice.