| Summary: | 碩士 === 國立中興大學 === 水土保持學系所 === 103 === Hillside is environment sensitive areas, once developed, more hazards caused by, especially among government announcements for landslides and Earth slide in the sensitive area of land, if development time in the act prior to the announcement, how to mend it is worth discussing topics.This study select Nantou City, at Nantou County, as research area, as the area has been
developed in 2009 and the Central Geological Survey, MOEA announced the area for landslides and slide geology-sensitive areas until 2014.This study was designed by geological survey and drilling analysis to explore the natural side of the object, the use of Canada ROCSCIENCE company developed a program in 2005 SLIDE development analysis slope stability planar destruction, can investigate the effects of land development activities due to the slope stability zone may be caused by the results of the analysis of soil and water to make appropriate maintaining the countermeasures to reduce disaster risks. The study area of 0.9 hectares, the area drill core from the Geological Interpretation on the results, SF thickness is 2 ~5m range, Rock is MSs/SS and SSm/Ms and Shear Zone.
Study results showed that regional GEO-environment of the insecurity have consequent slope plane sliding concave bank erosion. The study area in ancient times there had been a similar slope to slide forward, and finally piled into the current state of, and at the toe of the slope under the action of streams cut, the lateral continuity of the slope erosion, resulting in a potential slopes slide . By the results of slope stability analysis shows that research area of the building on the north side slope, earthquake safety factor of 1.25, although compliance with safety specifications will not produce immediate danger, but the future is still the risk of slope instability may occur, must be compatible with soil and water conservation facilities increase regional security research.
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