ST混凝土重力坝设计正文 - 图文

XX大学

毕业设计（论文）课题任务书

（ 2012---- 2013学年）

学院名称：水利与环境 课题名称 学生姓名 指导教师 XXX XXX 专业 ST混凝土重力坝设计 水利水电工程 任务书下达时间 学号 XXXX 课题概述:（设计型课题包括工程概况，设计的具体内容、步骤；论文型课题包括课题研究要解决的理论或实际问题，研究方法和内容） 本课题以ST水电站为依托。ST水电站位于乌江干流贵州省沿河县城上游约7km处，距乌江口250.5km。ST水电站以发电为主，其次航运，兼顾防洪等综合效益。 根据专业培养的要求和毕业设计的目的，本课题依据混凝土重力坝设计规范(SL319-2005 )，针对ST水电站进行设计。由于毕业设计时间限制，设计内容主要为基于水位-容积曲线及实测洪水过程线进行调洪演算获得设计洪水位和校核洪水位，通过应力分析和抗滑稳定分析确定大坝的基本剖面，其中溢流坝段采用WES剖面的水力设计方法进行设计，同时计算溢流坝段的堰面水面线，另外，还需进行消能防冲设计等。 要求阅读或检索的参考资料及文献（包括指定给学生阅读的外文资料）： 1 SL319-2005 混凝土重力坝设计规范 2 SL252-2000 水利水电工程等级划分及洪水标准 3 水利水电规划设计总院 水工设计手册（基础理论）水利电力出版社，1983 4 水利水电规划设计总院 水工设计手册（砼坝）水利电力出版社，1987 5 水利水电规划设计总院 水工设计手册（泄水与过坝建筑物） 水利电力出版社，1987 6 潘家铮 重力坝的设计和计算 水利电力出版社，1987 7 林继镛 水工建筑物 中国水利水电出版社 2006 8 吴持恭主编 水力学上、下册 高等教育出版社，2005 9 周之豪主编 水利水能规划 中国水利水电出版社，2006 10 王世夏编著 水工设计的理论和方法 水利水电出版社，2000

设计（论文）成果要求： （包括外文翻译、开题报告、设计或论文正文的数量和质量等要求等） 1 开题报告： 不少于2500 字 2 译文： 不少于3000 汉字 3 设计说明书： 50 页 2 万字； 设计计算书： 50 页 图纸： 1号3张 说明书要求文字简洁、论点明确、层次分明、书写清楚，并附有必要的图表。 计算书是说明书的补充文件，应包括计算过程、计算公式、计算依据、计算成果，要求条理分明，书写工整。 其它要求： （如设计型课题的原始资料及主要参数要求或论文型课题的论点、论据、逻辑性要求等） 搜集、阅读与本课题相关的资料，调查研究，独立设计； 根据进度要求按时、按质、按量完成毕业设计。 起止日期 1--1周 要求完成的内容及质量 了解设计任务，熟悉分析相关资料； 坝型选择和枢纽布置； 调洪演算； 非溢流坝剖面设计及应力计算和稳定性分析；溢流坝剖面设计；消能防冲设计等； 整理资料； 评阅及论文答辩。 进度及要求 2—3周 4—5周 6—9周 10—11周 12--14周 审核（教研室主任）

批准（系主任）

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作者签名：_________ 2013 年 月 日 导师签名：_________ 2013 年 月 日

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目 录

摘要 ···································· 1 前言 ···································· 2 第一部分 设计说明书 ···························· 3 1.基本资料 ································· 3 1.1自然条件及工程 ····························· 3 1.1.1流域概况及枢纽布置区的地理位置 ···················· 3 1.1.2水文气象特征 ····························· 3 1.1.2.1水文特征 ······························ 3 1.1.2.2气象特征 ······························ 4 1.1.3地震烈度 ······························· 5 1.2水库及水能主要指标 ··························· 5 2.枢纽布置 ································· 7 2.1枢纽组成建筑物及其等级 ························· 7 2.1.1根据枢纽的任务确定枢纽组成建筑物 ··················· 7 2.1.2确定建筑物等级 ···························· 7 2.2坝址选择 ································ 8 2.3坝型选择 ································ 8 2.3.1坝型选择的原则 ···························· 8 2.3.2坝型比较与选择 ···························· 8 2.4拦河坝布置 ······························· 9 2.4.1布置原则： ······························ 9 2.4.2枢纽的总体布置 ··························· 10 2.4.3泄水建筑物型式选择 ························· 10 2.4.4溢流坝段和非溢流坝段的布置 ····················· 11 2.5水电站建筑物型式选择 ························· 11

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2.6航运建筑物 ······························ 12 3洪水调节 ································ 12 3.1基本资料 ······························· 12 3.1.1洪水过程线的确定 ·························· 12 3.1.2相关曲线图 ····························· 3.2泄流方案 ······························· 3.3调洪演算 ······························· 3.3.1洪水调节基本原则 ·························· 3.3.2堰顶敞开式溢流水力学公式 ······················ 3.3.3列表试算法调洪演算 ························· 3.4调洪计算结果 ····························· 4非溢流坝剖面设计 ···························· 4.1设计原则 ······························· 4.2剖面要素拟定 ····························· 4.2.1坝顶高程的拟定 ··························· 4.2.2坝顶宽度的拟定 ··························· 4.2.3坝坡的拟定 ····························· 4.3非溢流坝抗滑稳定分析与计算 ······················ 4.3.1分析的目的 ····························· 4.3.2滑动面的选择 ···························· 4.3.3对坝基面进行抗滑稳定计算 ······················ 4.4应力计算 ······························· 4.4.1分析的目的 ····························· 4.4.2分析方法 ······························ 4.4.3 材料力学法的基本假设 ························ 4.4.4荷载组合 ······························ 4.4.5应力计算 ······························ 4.4.6 应力指标校核 ····························

14 15 15 16 16 16 17 17 17 18 18 19 19 21 21 21 21 23 23 23 23 24 25 28

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5溢流坝段设计 ······························ 28 5.1泄水建筑物方案比较 ·························· 28 5.1.1布置原则 ······························ 28 5.1.2泄洪方案选择 ···························· 29 5.2工程布置 ······························· 5.2.1溢流表孔 ······························ 5.2.2溢流表孔工作闸门型式选择 ······················ 5.3溢流坝剖面设计 ···························· 5.3.1顶部曲线 ······························ 5.3.2中间直线段的确定 ·························· 5.3.3反弧段 ······························· 5.4挑流消能水力要素的计算 ························ 5.5闸墩的设计 ······························ 6细部构造设计 ······························ 6.1坝顶构造 ······························· 6.2廊道系统 ······························· 6.2.1基础灌浆廊道 ···························· 6.2.2检查排水廊道 ···························· 6.2.3其他廊道 ······························ 6.2.4排水管 ······························· 6.3坝体分缝 ······························· 6.3.1横缝 ································ 6.3.2纵缝 ································ 6.3.3水平施工缝 ····························· 6.4坝体止水与排水 ···························· 6.4.1止水 ································ 6.4.2坝体排水 ······························ 6.5混凝土重力坝的分区 ··························

29 29 29 30 30 32 32 34 36 36 36 37 37 38 39 39 40 40 40 40 41 41 41 42

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7基础处理 ································ 43 7.1坝基开挖 ······························· 43 7.1.1坝基开挖的目的和原则 ························ 43 7.1.2坝基开挖要求 ···························· 43 7.2固结灌浆 ······························· 7.3帷幕灌浆 ······························· 7.4坝基断层及破碎带处理 ························· 7.5软弱夹层的处理 ···························· 7.6溶洞的处理 ······························ 第二部分 设计计算书 ··························· 1洪水调节 ································ 1.1调洪演算 ······························· 1.1.1计算相关数据 ···························· 1.1.2设计洪水和校核洪水过程线 ······················ 1.1.3水位～库容曲线 ··························· 1.2列表试算 ······························· 2非溢流坝剖面拟定 ···························· 2.1设计相关数据 ····························· 2.2坝高的确定 ······························ 2.2.1设计工况： ····························· 2.2.2校核工况 ······························ 2.3上下游坡率的拟定 ··························· 2.4坝顶宽度的拟定 ···························· 3坝基面抗滑稳定性分析 ·························· 3.1计算相关数据 ····························· 3.2设计工况荷载计算 ··························· 3.2.1坝体自重 ······························ 3.2.2静水压力 ······························

44 45 46 46 46 48 48 48 48 48 50 51 56 56 56 56 57 57 58 58 58 59 60 60

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3.2.3扬压力 ······························· 60 3.2.4浪压力 ······························· 60 3.2.5淤沙压力 ······························ 61 3.3校核工况荷载计算 ··························· 61 3.3.1坝体自重 ······························ 3.3.2静水压力 ······························ 3.3.3扬压力 ······························· 3.3.4浪压力 ······························· 3.3.5淤沙压力 ······························ 3.4抗滑稳定性分析 ···························· 3.4.1设计工况 ······························ 3.4.2校核工况 ······························ 4应力分析 ································ 4.1坝基面的应力计算 ··························· 4.1.1设计工况 ······························ 4.1.2校核工况 ······························ 4.2距坝基面10m处截面的应力计算 ····················· 4.2.1设计工况 ······························ 4.2.2校核工况 ······························ 4.3应力指标的校核 ···························· 5溢流坝段设计 ······························ 5.1泄水建筑物方案比较 ·························· 5.1.1布置原则 ······························ 5.1.2泄洪方案选择 ···························· 5.2工程布置 ······························· 5.2.1溢流表孔 ······························ 5.2.2溢流表孔工作闸门型式选择 ······················ 5.3溢流坝剖面设计 ····························

62 62 63 63 63 63 63 64 64 65 65 68 71 71 73 76 77 77 77 77 77 77 78 78

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5.3.1顶部曲线 ······························ 79 5.3.2中间直线段的确定 ·························· 81 5.3.3反弧段 ······························· 81 5.4挑流消能水力要素的计算 ························ 82 5.5闸墩的设计 ······························ 致 谢 ································ 参 考 文 献 ······························

84 85 86

6

凝土重力坝设计

学生：XXX 指导老师：XXX XX大学XX学院

摘要：本课题依据混凝土重力坝设计规范(SL319-2005)，针对ST混凝土重力坝进行设计。设计的目的及意义主要在于巩固所学水利水电理论知识，使其得到实际运用， 并使之系统化，锻炼和培养运用所学专业基础理论知识解决工程实际，并进行设计、计算、制图的能力，提高撰写专业技术报告的水平。主要设计内容为，首先依据水量平衡方程和水库的蓄泄方程进行调洪演算，获得设计洪水位和校核洪水位，然后采用刚体极限平衡法进行抗滑稳定分析，以及采用材料力学法进行应力分析，据此确定重力坝的基本剖面及实用剖面，同时计算确定溢流坝段的堰面水面线等。具体设计详见设计说明书、设计计算书及反映本次设计成果的CAD设计图纸。

Abstract：The title of graduation project is the ST concrete gravity dam design based on concrete gravity dam design criterion(SL319-2005).The purpose and significance of the graduation project is to consolidate the Water Resources and Hydropower theoretical knowledge that we have learned,to make it into practical use,systematize it, and to exercise and train the ability to apply the fundamental theoretical knowledge to solve practical engineering and conduct design, calculation, cartography to improve the level of writing professional and technical report. The main design content are obtaining the design flood level and the check flood level based on flood regulating calculation,which is achieved by water balance equation and water storage and discharge of the reservoir equation,obtaining the basic profile and practical profile of the dam based on stress analysis carried out by mechanics of materials method and sliding stability analysis,calculate and determine the water line of spillway section and so on.

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