Study on the Evaluation Method of Mountain Road Rerouting-Taking 457k+651 Duyue Bridge on Provincial Highway No. 9 for Example

• Main Authors: Shao, Hsien-Hung, 邵獻弘
• Other Authors: 李錦育
• Format: Others
• Language: zh-TW
• Published: 2014
• Online Access: http://ndltd.ncl.edu.tw/handle/34zycr

碩士 === 國立屏東科技大學 === 水土保持系所 === 103 === In the past, Taiwan had ignored and neglected the environmental, ecological and landscaping problems arising from road development. In terms of highway development, since the cost of design is determined on the basis of mileage, potential rockfall, landslide, debris flow, soil conservation, landscaping and ecological problems were usually overlooked because of insufficient budget or the designer’s routinism. In terms of construction, conventional construction method usually cut into mountains by drilling and explosion, which often loosened the soil, causing landslide and rockfall; dumping waste soil at discretion also caused serious damage to the landscape and environment. Highway route selection aims at identifying the safest, most convenient, economic, easy-to-maintain corridor that meets the design standard for road construction. In this study, the 457k+651 Duyue Bridge on Provincial Highway No. 9 are taken as examples. The bridge is located in Shihzih Township of Pingtung County. In addition to the wriggly and winding line of the existing road, these old bridges fall short of the requirement of the “Specification of the highway route design”. While these bridges are rebuilt, it is hoped that the road line in that area would be improved.