【正文】
w= hf+hj,計算,其中 : 局部水頭損失計算公式為:自流管為鑄鐵管, n取 C= 611Rn = 61 ??????= λ =28cg= ?= hf=λgdlv22 = 2? = 10 局部水頭損失計算公式為: hj=?gv22? 各局部阻力系數查給水排水設計手冊第一冊得到:喇叭口ζ 1=, 900焊接彎頭ζ 2=,蝶閥ζ 3=(全開式蝶閥一般取 ~ ),出口處ζ 4=,局部水頭損失為: hj=?gv22? =(+++) 2? = 則管道總損失為: hw= hf+hj= += 考慮日后因淤積等原因造成管道阻力增大,為避免因此造成流量降低,則管道總水頭損失采用 。 最小淹沒水深 : 取 ‘h =(根據河流航道要求及通行船只吃水深度,最小淹沒 8 深度一般取 ~ ); 進水口下緣距河底 : 39。通常當集水井深度不大,可用大開槽施工時,采用矩形集水井,否則用圓形 。頭部周圍拋石,防止河床沖刷。 河流主流及河床情況 河流近岸坡度較緩,主流離岸約 50— 100m,主流最小水深 — 。 master tool application method. Through the course of the semester learning, on water resources development and utilization of water resources and formation, calculation of evaluation, surface water and underground water engineering, water saving theory and the reuse of reclaimed water have a more prehensive understanding of. By the time of a water head of curriculum design, and I on the water resources utilization and protection of the book knowledge over, for those who originally confused knowledge has a clear understanding of the original, he does not know the content, also have understanding, make oneself more prehensive, system access to water resources for water related 3 knowledge, the bination of theory and practice, better master the knowledge of water. Due to their limited capacity and was the first to design the curriculum, inevitably in the process of design problems, hope that the teacher can be corrected, to promote my future study. 4 目 錄 1 緒論 ………………………… …………………………………… ..5 設計目的 …………………………………………………… .5 設計任務 …………………………………………………… .5 設計時間 …………………………………………………… .5 2 計算說明 ………………………………………………………… ..5 基本資料 ……………………………………… .…………… ..5 構筑物類型確定 ……………………………………… .…… 6 構筑物設計 ………………………………………………… .6 3 結論 ………………………… …………………………………… ..15 參考文獻 …………………………………………………………… ..16 1 緒論 設計目的 對所學知識加以應用和系統(tǒng)化,培養(yǎng)解決實際工程設計問題的能力; 使學生在設計、制圖、查閱資料、使用設計手冊和規(guī)范等基本技能上得到初步訓練。水資源在社會、經濟、生存環(huán)境中占用十分重要的地位,它是建設社會物資文明和精神文明的重要條件,是社會賴以存在和發(fā)展的物質基礎。 2 Preface Water is the