关键词: 抱龙峪滑坡, 成因, 稳定性, 综合治理

Abstract: This paper presents the case history of Baolongyu landslide in Chang’an District, Xi’an City. The basic characteristics of the subsurface conditions at the landslide site, possible factors that might triggering the landslide are evaluated and the stability of the landslide is also performed through the geotechnical data provided by the investigation and the back analysis. The geotechnical parameters required for the landslide mitigation design are obtained and the mitigation plan is therefore proposed. The research results show that the Baolongyu landslide is a shallow accumulation landslide induced by the rainfall; The landslide is in an unstable state under the natural conditions. According to the stability of the landslide analysis, the concept of comprehensive mitigation: “slope backfill + sheet pile wall + passive protective wire mesh net + reinforced concrete retaining wall + intercepting and drainage” is finally adopted. The wedgeshaped chute is backfilled, the sheet pile wall and the reinforced concrete retaining wall are arranged at the toe of the landslide slope, the passive protective wire mesh net is arranged at the top of the pile and the wall, and the chute and drainage ditch are arranged on the slope to drain the rainwater on the slope and to ensure the stability of the landslide.

Key words: Baolongyu Landslide, Triggering Factors of Hazards, Stability, Comprehensive Mitigation