Green+Engineering+for+Landslide+Restoration+Project

Abstract

本文以台中地區「新庄崩塌地處理二期水土保持修復工程」為研究案例，針對其破壞原因加以剖析與探討並以綠色工程研擬整治與修復方案及成果。研究結果顯示，雨水沖刷及地質之不穩定性係造成本案例發生破壞之主要天然因素。而本案在考量施工、安全、成本、工期、景觀及現地環境條件等因素後，以綠色工程中的「綠色內涵」做為設計原則，最後採用回包式加勁擋土結構配合混凝土壩及基樁等複合工法整治本崩塌地。本工程自民國98年竣工後，經歷多次颱風豪雨，目前結構穩定且坡面植生良好，並增加土地利用面積，且相較單以RC擋土牆整治可減少百分之八十以上之CO2排放量，成果斐然，可供工程界處理類似工程之參考。It has been said that safety is the most important issue that engineers consider restraining landslides. However, ignoring the ecological and landscape impact may cause several island ecological effects and lack of coordination in the scenery. After several natural calamities caused by backlash, some relevant units of the overall considerations for the project from the past, "everything becomes possible" engineering thinking, turning over both safety and environmental friendliness of the "Green Engineering" new thinking. In this paper, the case study of slope rehabilitation is a large landslide in Taichung area. The failure of slope is discussed and analyzed. In addition, the treatment and reconstruction methods are developed by green engineering solutions. The result shows that rainfalls and geologic instability are the major natural factors of slope failure. The main design principle of "Green Connotation" for green engineering which includes that the installation, safety, cost, schedule, landscape and environmental conditions. It presents that using wraparound reinforced retaining structures and combines with concrete structures and driving piles to reconstruct the slope. The result shows that the case with complex reinforced construction method not only performs good structure stability and plentiful vegetation but also increases utilized area of land. Contrary to RC retaining walls, the Green Engineering solutions be able to reduce carbon dioxide emissions more than eighty percent in this case. This case could be the example for dealing with similar projects