湖南农业大学东方科技学院 全日制普通本科生毕业设计
平江县大坪乡、虹桥镇等两个乡镇农田水利工程
设计
THE DESIGN OF WATER CONSERVANCY PROJECTS IN TWO TOWNS, SUCH AS DAPING TOWNSHIP AND HONGQIAO
TOWN, PINGJIANG COUNTY
学生姓名: 学 号:
年级专业及班级:2013级水利水电工程(2)班
指导老师及职称:
学 部:东科院理工学部
湖南·长沙
提交日期:2017年5月
目 录
1 前言 ......................................................................................................................................................... 1
设计的必要性 ....................................................................................................................................... 2 设计目标 ............................................................................................................................................... 2 国内外农田节水浇灌现状 ................................................................................................................... 2 2 综合说明 ................................................................................................................................................. 4
灌区概况 ............................................................................................................................................... 4 自然条件 ............................................................................................................................................... 5
地形地貌 ....................................................................................................................................... 5 气象 ............................................................................................................................................... 5 土壤 ............................................................................................................................................... 5 植被 ............................................................................................................................................... 5 水文与水文地质 ........................................................................................................................... 5 工程地质 ....................................................................................................................................... 6 灌区存在问题 ....................................................................................................................................... 6 3 项目区水资源供需平衡分析 ................................................................................................................. 6
浇灌水源 ............................................................................................................................................... 6 供水量分析 ........................................................................................................................................... 6
大坪乡灌区 ................................................................................................................................... 7 虹桥镇灌区 ................................................................................................................................... 7 浇灌需水量预测 ................................................................................................................................... 8 水资源供需平衡分析 ........................................................................................................................... 9
原则与方式 ................................................................................................................................... 9 水资源平衡计算 ........................................................................................................................... 9
4 浇灌与排水工程设计 ........................................................................................................................... 10
浇灌渠道 ............................................................................................................................................. 10 排水工程设计 ..................................................................................................................................... 15
排涝标准 ..................................................................................................................................... 16 排涝流量的设计计算 ................................................................................................................. 16
5 结论 ....................................................................................................................................................... 17 参考文献 ..................................................................................................................................................... 18 致 谢 ..................................................................................................................................................... 19