Abstract:Landslide prevention and control is a point that must be considered in the design and construction of slope engineering. According to the provisions of the new code, the prevention and control measures for the traction-type landslide on the ancient slip mass in the main line K12+400 ~ K12+700 of the national highway G342 are introduced in detail, including the stability of the landslide under various construction conditions after earth clearing and load reduction, and the calculation explanation and rationality verification of the design process such as the size, reinforcement and layout of anti-slide piles. A integrated monitoring system has been established for the subsequent construction and operation of the highway in this section in order to prove the rationality of the treatment scheme for the landslide disposal of the project, and also provide the reference for the landslide disposal in the other related engineering examples.