(2)计算方格角点设计标高
根据泄水坡度的要求:ix＝3‰ iy＝2‰计算 则用Hn＝H0?lxix?lyiy
H1＝43.71－40×3‰＋20×2‰ H2＝43.71－20×3‰＋20×2‰ ＝43.71－0.12＋0.04 ＝43.63m H3＝43.71＋20×2‰ ＝43.71＋0.04 ＝43.75m
H5＝43.71＋40×3‰＋20×2‰ ＝43.71＋0.12＋0.04 ＝43.87m H7＝43.71－20×3‰ ＝43.71－0.06 ＝43.65m H9＝43.71＋20×3‰ ＝43.71＋0.06 ＝43.77m
H11＝43.71－40×3‰－20×2‰ ＝43.71－0.12－0.04
＝43.55m H13＝43.71－20×2‰
＝43.71－0.04 ＝43.67m
＝43.71－0.06＋0.04 ＝43.69m
H4＝43.71＋20×3‰＋20×2‰ ＝43.71＋0.06＋0.04 ＝43.81m H6＝43.71－40×3‰ ＝43.71－0.12 ＝43.59m H8＝H0＝43.71m
H10 ＝43.71＋40×3‰ ＝43.71＋0.12 ＝43.83m
H12＝43.71－20×3‰－20×2‰ ＝43.71－0.06－0.04 ＝43.61m
H14＝43.71＋20×3‰－20×2‰ ＝43.71＋0.06－0.04 ＝43.73m
H15＝43.71＋40×3‰－20×2‰ ＝43.71＋0.12－0.04 ＝43.79m
(3)计算各角点的施工高度 根据公式 hn＝Hn－H h1＝43.63－43.24＝＋0.39m h2＝43.69－43.67＝＋0.02m h3＝43.75－43.94＝－0.19m h4＝43.81－44.34＝－0.53m h5＝43.87－44.80＝－0.93m h6＝43.59－42.94＝＋0.65m h7＝43.65－43.35＝＋0.30m h8＝43.71－43.76＝－0.05m
h9＝43.77－44.17＝－0.40m h10＝43.83－44.67＝－0.84m h11＝43.55－42.58＝＋0.97m h12＝43.61－42.90＝＋0.71m h13＝43.67－43.23＝＋0.44m h14＝43.79－43.67＝＋0.06m h15＝43.79－44.17＝－0.38m
