—MaMvUaa-,天目水库灌区规划及初步设计-1-目录摘要...........................................................4ABSTRACT........................................................5第一章综合说明.................................................6一、工程概况..................................................6（一）流域位置.............................................6（二）自然条件.............................................6二、灌区自然地理概况..........................................7（一）灌区范围和地形.......................................7（二）社会经济资料.........................................8（三）气象资料.............................................8三、灌区开发分析..............................................9（一）必要性分析...........................................9（二）可行性分析..........................................10（三）合理性分析..........................................11第二章水源规划...............................................12一、设计死水位与死库容......................................12（一）自流灌溉要求........................................12（二）养殖要求............................................12（三）泥沙淤积要求........................................12（四）旅游、水生态要求....................................12二、水库的兴利计算..........................................13（一）灌溉设计保证率......................................13（二）年径流的分析........................................13三、防洪计算................................................37（一）防洪设计标准........................................37（二）设计洪水的推求......................................37（三）调洪演算............................................48第三章灌区总体规划...........................................49一、灌区范围的确定..........................................49二、骨干渠沟布置............................................49—MaMvUaa-,天目水库灌区规划及初步设计-2-（一）灌排系统的布置原则..................................49（二）骨干渠沟布置........................................50三、典型田间工程规划......................................52（一）选典型支渠..........................................52（二）农沟间距的确定......................................52（三）典型支渠的斗、农渠布置..............................54四、渠系建筑物布置........................................54（一）配水建筑物..........................................54（二）交叉建筑物..........................................54（三）泄水建筑物..........................................55（四）建筑物统计..........................................55五、交通、林网、居民点布置................................55（一）交通................................................55（二）农田防护林网规划....................................56（三）居民点..............................................57第四章灌溉渠道系统设计......................................58一、渠道流量推算..........................................58（一）选择典型支渠........................................58（二）确定渠道工作制度....................................58（三）典型支渠的流量推求..................................59（四）推求干渠设计流量....................................60（五）推求干渠最小流量....................................63（六）推求干渠加大流量....................................64二、纵横断面设计.............
