Building and civil
Road pavement structure section (N5 traffic, design CBR 6, required TA 21 cm)
A road pavement section stacking surface, binder, upper and lower base courses and subgrade, each with its thickness
This drawing comes from one YAML file. No shape was moved by hand.
Notes in the source (in Japanese)
1 px = 5 mm。断面なので y は深さ(下が深い)
TA(等値換算厚)で確かめる。 TA = Σ(層の厚さ × 等値換算係数)。係数は 加熱アスファルト混合物 1.00、粒度調整砕石 0.35、クラッシャラン 0.25 なので5 + 5 + 15 × 0.35 + 30 × 0.25 = 22.75cm。N5 交通・設計 CBR 6 の必要 TA 21cm を満たす(係数と必要 TA は日本道路協会『舗装設計施工指針』の TA 法の表による。この版の表は確かめていない)。路床は掘らない —— 舗装の下 1m の地盤のことなので、-1,550 は「路床下」で、掘削底ではない。
表層と基層は 50 mm = 10 px しかない。 名前を層の中へ書くと、隣の層の名前とぶつかる(文字は 12 px ある)。縮尺を崩して層を厚く描けば名前は入るが、縮尺が正しいことがこの図の中身なので崩さない。実物の舗装構成図と同じく、薄い層の名前は右の構成表で読む。
Source (YAML)
examples/gallery/43-舗装構成の断面図.zumen.yaml
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