混凝土重力坝设计及施工组织设计汇总 下载本文

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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。

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ABSTRACT

A 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 life

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