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題 名 | 應用線元素移動方法於受約制豎曲線定位模式之研究=A Study on the Constraint Vertical Curve Fixing Model in Linear Element Movement Method |
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作 者 | 陳春盛; 劉鳴錚; | 書刊名 | 測量工程 |
卷 期 | 41:1 1999.03[民88.03] |
頁 次 | 頁33-52 |
分類號 | 440.9 |
關鍵詞 | 受約制豎曲線; 線元素移動方法; The constraint vertical curve; The linear element movement method; |
語 文 | 中文(Chinese) |
中文摘要 | 在以往對於必須通過特定固定點之受約制豎曲線,其定位計算係使用試誤法或配 合傳統慣用先設定切線坡度後之計算法解算,而在實務定線時,常不能滿足設計需求,例如 切線坡度未知或不易確定時之情形,以線元素移動方法應用於受約制豎曲線通過一個及二個 固定點時,可以避免切線坡度未知時之困擾,並可以免除以傳統計算法計算時,須再校核所 解算出之豎曲線長度或曲率半徑是否符合設計規範之規定等優點,本文將豎曲線之基本型式 分為12個測試模組,藉由基本模組之建立,以提供實務運用時之參考,並以二個應用實例 驗證說明。 |
英文摘要 | The prior fixing method to force a constraint vertical curve passing through a fixed point is utilized the try and error method or traditional method by solving an assumed grade of a tangent. In real case, these methods cannot fulfill the design requirement such as the grade of a tangent is unknown or unsure. The linear element movement method applied in the constraint vertical curve model can pass through one to two fixed points without the forementioned problems. This method is also no need to recheck the length or radius of curvature of the vertical curve to fulfill the design requirement as in the traditional method. The basic modules of vertical curve are divided into 12 modes in this paper. Application in real case can be referenced to these basic modes. Two real examples are also presented to verify this method with good results. |
本系統中英文摘要資訊取自各篇刊載內容。