華清池地すべりの地すべりブロックと対策工の検討

Abstract

本論文は、地表踏査, 既存試料から地質解析を行い、華清池地すべりの地すべりブロックを区分し、運動履歴の多いIブロックについてその規模を特定し、安定解析および対策工の検討を行ったものである。対策工の選定においては、我が国で信頼性, 実績が豊富な深礎杭工+アンカー工法の採用が望まれるが、中国という地域的特徴を考慮し、今回新たに、多段鉄筋コンクリート(RC)杭の「竪坑方式」と「横坑方式」を提案した。

Many faults were developed at Lishan, a hill at the back of the Huaqing Palace. And landslide topography and creep topography restricted by these faults were recognized. Because of these, the existing geology was analyzed this time, landslide blocks were divided by the reconnais-sance of site, the scale of BlockI having significant kinetic hysteresis was specifically designated, and stability analysis and landslide prevention measures were investigated. In the slope stability analysis, investigations were made not only for ordinary times but also for the time of earthquake.Also, in selecting the prevention measures, milti-stage vertical RC piles and horizontal RC piles were proposed by considering the regional characteristics in China.