混凝土重力坝设计及施工组织设计

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毕业设计(论文)题目铜钱坝水库碾压混凝土重力坝及施工组织设计专业水利水电工程班级工093学生郝晓卫指导教师苗隆德2013 年摘要一个坝址的坝型选择主要取决于地形、地质、水文和气候条件。

本次设计的基本资料来自于勉县地区铜钱坝资料。

经过对几次可建造坝型的比较估算,我们选择碾压混凝土重力坝,方量少、造价低。

碾压混凝土重力坝一般设置坝顶溢流堰,溢流堰为河川水利枢纽之必需泄水建筑物,用以排泄水库多余的水量,必须设计成能泄放最大的来水量,而同时能保持水库的水位在预定的水位以下。

入库设计洪水的选择和确定,需要通过充分的水文流域因素资料来进行分析。

然后才能确定溢流堰尺寸。

对于过坝水流的调蓄,需要有合理审慎的设计,以避免生命财产的损失。

我们是通过调洪演算来确定起调流量和下泄流量从而来设计溢流堰。

接着在满足上下游稳定和应力的条件下,根据大坝基本剖面最小原则来确定该碾压混凝土大坝的剖面和轮廓尺寸,也包括大坝的一些细部结构和对地基的处理等。

在确定完上下游的基本坡度后,用稳定计算和材料力学分别从正常蓄水位、设计洪水位、校核洪水位和地震情况的方面进行稳定计算,来验证和校核剖面的稳定性。

大坝安全也是大坝设计中最重要的控制因素,坝越高越重要。

由于水库蓄水量很大,所以设计时需谨慎小心,以防因失事而造成的生命和财产损失。

小心处理诸多影响运行性能的因素,以确保坝的安全、经济和效用。

通过本次设计,让我了解了碾压混凝土重力坝的设计方法,而且对其他型式的坝型有了初步的了解,知道了关于碾压混凝土重力坝的一些重要特点和设计时应注意的一些问题,完成了专业知识从理论到实际的过渡。

体会到了身为一名水利工程设计者所需要具备的品质和专业知识,更重要的是担负的责任,这对我们以后的工作都是一次提前的操练。

ABSTRACTA dam site of the dam type selection is mainly depends on topography, geology, hydrology and climate conditions. The design of the basic data from MianXian areas copper bar. After comparing several dam type can be built to estimate, we choose our roller compacted concrete gravity dam,little volume, low price.Roller compacted concrete gravity dam crest overflow weir, generally set the overflow weir for necessary drainage river water conservancy hub building, used to drain the reservoir redundant water, must be designed to discharge the biggest inflow, and at the same time to keep the reservoir water level below the predetermined water level. Put in storage, the choice and determination of design flood, need through the full hydrological factors data for analysis. And then to determine the size of overflow weir. Passing the dam for water storage, needs to have a reasonable and prudent design, in order to avoid loss of life and property. We are through the flood regulating calculation to determine the design flow and analyzed so as to adjust to the overflow weir.Then under the condition of satisfy the stability and stress of the upstream and downstream, according to the basic profile minimum principle to determine the roller compacted concrete dam dam profile and dimensions, and also include some of the detail structure of the dam and the foundation treatment etc. After in determining the basic grade of upstream and downstream, with stability analysis and mechanics of materials, respectively, from the normal storage level, design flood level and check flood level and stability of earthquake situation, to verify and check profile stability.Dam safety as well as the most important controlling factor of the dam design, the dam, the higher the more important. Due to reservoir storage capacity is very big, so the design need to be careful, in case of loss of lifeand property due to crash. Carefully deal with many factors, which affect the performance, in order to ensure dam safety, economy and utility. Through the design, let me know the design method of roller compacted concrete gravity dam, but also for other types of dam type have preliminary understanding, to know about some important characteristics of roller compacted concrete gravity dam and when the design should pay attention to some problems, and completed the professional knowledge transition from theory to practice. Realized as a water conservancy project designers need to have the quality and the professional knowledge, more important is the responsibility of the later work for us is a practice ahead of time.目录摘要 (1)第1章铜钱坝工程概述 (6)1.1 工程概况 (6)1.2 工程特征表 (7)第2章水文气象 (8)2.1 流域水文概况 (8)2.2洪水分析计算 (8)第3章兴利调节和调洪计算 (12)3.1 底孔规模及死库容确定 (12)3.2 兴利库容确定 (12)3.3 调洪计算 (13)第4章工程地质 (19)4.1 区域地质概况 (19)4.2 库区工程地质条件 (19)4.3 坝址工程地质条件 (21)4.4 各坝轴线工程地质条件 (23)第5章枢纽布置 (24)5.1 坝址选择 (24)5.2 坝轴线选择 (25)5.3 坝型选择 (25)5.4 枢纽布置 (26)第六章建筑物设计 (28)6.1 非溢流坝段设计 (28)6.1.1坝顶高程确定 (28)6.1.2初拟坝体剖面 (30)6.1.3荷载计算 (30)6.1.4 坝基面稳定计算 (34)6.1.5抗滑稳定与强度验算 (36)6.2溢流坝段设计 (40)6.2.1. 溢流坝堰面体型设计 (41)6.2.2溢流坝面水面线计算 (44)6.2.3消能防冲设计 (49)6.3 排沙底孔设计 (50)6.3.1底孔剖面拟定 (50)6.3.2底孔水力计算 (55)6.3.3工业取水管的设计 (57)第七章构造设计 (58)7.1.坝顶构造 (58)7.1.1廊道系统 (58)7.1.2坝体检查与排水廊道 (58)7.1.3防渗系统 (58)第八章地基处理 (60)8.1地基开挖与清理 (60)8.2帷幕灌浆与固结灌浆 (60)8.2.1固结灌浆 (60)8.2.2帷幕灌浆 (61)8.3断层、软基夹层处理 (61)第九章施工组织设计 (62)9.1 施工组织设计 (62)9.2施工进度计划.............................. 错误!未定义书签。

9.3施工布置原则 (63)致谢 (65)参考文献 (66)第1章铜钱坝工程概述1.1 工程概况铜钱坝水库坝址位于汉江支流玉带河下游,该水库是以供某工厂工业用水年平均流量1.5m3/s为主,兼补偿下游农田灌溉用水3000万m3/s,以及防洪、发电、养鱼等综合利用水利枢纽工程,要求工业供水保证率97%,农田灌溉保证率75%。

该工程属Ⅲ等工程,主要建筑物按3级建筑物设计。

由于下游有重镇,因而设计洪水标准为百年一遇洪水,洪峰流量3100m3/s,校核洪水的洪峰流量4550 m3/s,正常蓄水位605m,死水位588m,相应死库容为1075万m3。