縦断線形設計におけるデジタル地形データを用いた土量高速計算法

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  • Fast Calculation Method of Earthwork Quantity for Vertical Alignments from Digital Terrain Data
  • ジュウダン センケイ セッケイ ニ オケル デジタル チケイ データ オ モチイタ ドリョウ コウソク ケイサンホウ

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Japan Highway Public Corporation has been developing the “vertical alignment optimization system” to minimize construction cost and earthwork quantity balance that aims at computer support for highway design. In that system, it is necessary to calculate earthwork quantity from digital terrain data for millions of vertical alignments. We couldn't compare many vertical alignments, because it took days to calculate earthwork quantity of each vertical alignment by means of the former average cross section method. In this paper, we propose a new method that can calculate earthwork quantity only within one tenth second for each vertical alignment. By comparing with the average cross section method, we verified availability of our method as for the actual design.

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