近年來台灣遭受了幾次嚴重的水災,隨著大量的降雨,對已經傷痕處處的大自然,施加了強大的壓力,超過環境所能承受的雨量,便隨著溪流狂洩而下淹沒我們居住的土地。也因此隨著政府大力災害搶救及有心倡導推動生態工法,目前國內河溪整治工程大多採用生態工法,生態工法雨後春筍般在全台各地開花結果,有許多傲人的成果,生態工法無疑是工程界的顯學,因此河溪生態工法評估,儼然成為一項研究重點。 但目前對於生態工法仍處於未成熟階段,以致衍生許多爭議及適用性的問題,本研究主要藉由實際河溪生態工法執行成果歸納分析,彙整相關國、內外相關經驗公式及適用參數,來驗證本土生態工法,藉由相關經驗公式分析案例及現況實際執行成果來驗證正設計參數因子並製成安全評估檢核表,以利後續工程人員設計參考。該安全評估檢核表經此研究證明可作為工程完工後河溪生態工法安全檢查之用,並可作為後續研究之參考。
In the recent years, Taiwan has faced several severe floods which made already damaged environment even worse. Severe precipitation often causes rapid flow and large area of inundation. As the government wants to avoid disasters, more and more stream improvement works have been designed using ecological engineering methods. Since ecological engineering practices have resulted in some excellent performance, safety evaluation of stream ecological engineering methods has become a critical focus. However, ecological engineering methods have not yet been fully understood, and therefore a lot of controversial issues exist. This study is to compile local and overseas related formulas for evaluating safety of stream improvement works using ecological engineering methods. An evaluation form was established using various physical parameters, and actual works were evaluated using this form. The safety evaluation form is to be a useful tool for safety evaluation of stream ecological engineering methods, and it can be the reference for research development.