1、 毕业生论文毕业生论文 白莲河龙潭冲白莲河龙潭冲( (拱式拱式) )渡槽设计渡槽设计 二一年六月 BACHELORS DEGREE THESIS OF WUHAN UNIVERSITY The aqueduct design of LongTan Chong BaiLian River June 2010 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
2、） ，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，槽底宽为 4.0m，侧墙高 3.92m， 设有间距为 1.5m，高为 0.1m 的拉杆，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：关键词：渡槽；悬链线无
3、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 19611962. After 30 years of running, the aqueduct appeared serious aging problems, in addition of the irrigation area and rate of flow increa
4、sed, 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 V alley channel by bent into straight, the new aqueduct will be built in curved, engineering projects such as the III, the main building
