Three Rows Micro-piles in Debris Landslide Anti-sliding Mechanism Model Test Research

Abstract. Micro-piles are widely used because of its own advantages, but relatively few theoretical studies about its anti-slide mechanism. Through the different pile spacing under three rows of micro pile reinforcement debris landslide indoor model experiment to study the micro-piles against sliding mechanism. The test results show that: the pile spacing of 5D, three rows of micro piles structure can produce sliding resistance of the biggest and the maximum sliding resistance. Pile been pressure and the bending moment of the piles mainly concentrated distribution within the scope of the sliding surface above 1/3 pile range and closer to the surface greater. Landslide thrust transfer coefficient and respectively in (0.54, 0.71) and (0.27, 0.49) between the value