拱式渡槽毕业设计--白莲河龙潭冲(拱式)渡槽设计.doc

学号 200631580223
密级

武汉大学本科毕业生论文
白莲河龙潭冲(拱式)渡槽设计
二○一○年六月
BACHELOR'S DEGREE THESIS
OF WUHAN UNIVERSITY
The aqueduct design of LongTan Chong BaiLian River

June 2010
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摘要
龙潭冲渡槽位于湖北省浠水县白莲河灌区西干渠上游处,桩号为1+800,竣工年限在1961年~1962年,经过三十多年的运行,该渡槽出现严重的老化问题,加之灌区面积增加和流量增大,该渡槽已远远不能担负输水灌溉的任务,根据白莲河水库灌区续建配套与节水改造规划成果(2003年),要求重建白莲河渡槽。考虑到原渡槽所在渠道位于一较大的冲谷处,该段渠道在山洪期间常受洪水危胁。经灌区重新规划,将原山谷下的沿山渠道进行截弯取直,在截弯处新建新的龙潭冲渡槽,工程为III等工程,主要建筑物为3级。
新建的渡槽采用矩形拱式渡槽,拱跨87m,共两跨,,,,,考虑到交通要求,还设有1m宽的人行板。本设计布置等跨的间距为15m的单排架共12跨,与渐变段连接处采用浆砌石槽台。排架与地基的连接采用整体基础。槽身、排架、拱圈以及基础采用预制吊装形式。
关键词:渡槽;悬链线无铰拱;排架;
ABSTRACT
The aqueduct of Longtan Chong is located in upstream of the west main canal, the pile number is 1+800, completion of fixed number of year from 1961~1962. After 30 years of running, the aqueduct appeared serious aging problems, in addition of the irrigation area and rate of flow increased, the aqueduct can not take the task for irrigation any more, requesting reconstruction of the Bailian River aqueduct. In consideration of the channel of the original aqueduct was located in a huge valley, it was often threatened by flood during that period of channels in flash floods. After the irrigation district planning, The channel original Valley channel by bent into straight, the new aqueduct will be built in curved, e
ngineering projects such as the III, the main building to the level 3.
The new aqueduct used rectangular arch aqueduct, the arch span is 87 m, there will be double crosses, the aqueduct at the bottom of a width of ,side wall height ,set a spacing of , the lever of the high-. Considering the traffic requirements, also has 1m wide sidewalks. This design layout, etc. across a 15m of 12 single-bent cross, with the transition section junction with masonry stone runnel pier, bent and gro