A Study on Micro Pile Reinforcement Technology for the Accumulative landslide of Expansive Soil

摘要

This paper studies the micro pile technology for the accumulative landslide reinforcement of expansive soil, putting forward the three failure modes of the micro pile strengthening accumulative landslides of expansive soil and design principles of the micro pile, and then illustrating its calculation methods. Those finding have been applied into 22 landslide disasters for the micro pile design, landslide treatment engineering in south mountainous area of Shaanxi Province in China, which attaches theoretical and practical importance to the design and treatment of micro piles reinforcing the same type of landslide.