The Study of the Remediation for the Landslide in Lioushuang Formation by the Free Frame Structure

• Main Authors: Shiuh-WenLin, 林旭紋
• Other Authors: Jing-Wen Chen
• Format: Others
• Language: zh-TW
• Published: 2011
• Online Access: http://ndltd.ncl.edu.tw/handle/72553334922227372474

碩士 === 國立成功大學 === 土木工程學系專班 === 99 === Abstract The deterioration of slope lands from man-made excavations and inadequate maintenance of slope reinforcements in recent years have caused frequent occurrences of debris flow, earth flow and slope erosion during raining seasons. Buildings and their surrounding roads in close proximity to these slopes have seen their foundations tunneled or incurred various damages. The strata of the ground in this study were made up of Liushuang Formation; the age of its formation was fairly recent and the texture of its cemented rocks was loose, which made it structurally unstable. This study utilized the most common slope stabilization method—the free frame structure—to restore the slopes which went through landslides and debris flows. After the completion, a comprehensive monitoring system was implemented to observe and explore the post-completion effects in terms of maintenance, vegetation, stabilization, and economical aspects in order to analyze the feasibility of the aforementioned engineering method in these strata. A slope sliding had occurred during the remediation process in this area which resulted in property loss and construction delay. Using on-site inspection and reliable monitoring system to arrange, categorize, induce, and analyze, not only could the safety of the slopes be projected, the mechanisms and paths of the slopes after the occurrence of disaster could also be established. In terms of the free frame structure on the stabilization of the slope, the STABLE limit equilibrium analysis method was utilized to analyze the stabilization of the slopes in order to evaluate the effectiveness of the completed project, and to interpret the paths of the slope damage and the safety coefficient. It was shown to be an effective way to increase the slope stabilization and the preservation of the ecological system, in addition to establish the remediation model for the slope sliding and to provide references for future studies by scholars and engineering agencies. Keywords: limit equilibrium analysis method, slope stabilization method, free frame structure