2009年全国卷Ⅰ高考数学试题(理数B卷)

喜河斜心墙土石坝水利枢纽设计

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摘 要

在对喜河流域的自然地理，水文气候特征，工程地址及水文地质分析的基础上，通过调洪演算得到堰顶高程及溢流堰孔口净宽，并得到设计水位及其流量、校核水位及其流量。通过对坝址及坝型的定性分析比较，定出坝轴线的位置，其坝型定为土石坝。

通过地质地形，料场位置的分析，最终确定大坝为斜心墙土石坝。并对大坝的基本剖面及轮廓尺寸进行拟定。并对坝体排水及坝坡，粘土防渗墙进行防渗设计。在坝体的渗流计算中，本设计分别选用坝体中间剖面及坝体左右各一个剖面共三个剖面进行设计，计算渗透流量及溢出水深。并验算渗流溢出点的渗透坡降。土石坝易于发生滑动失稳，故要对其稳定性进行计算，确定在各种水位工况下上下游坝坡的最小安全系数。土石坝坝基处理是分析河床部分及坝肩，选择适宜的渗流控制方案。在大坝的细部构造上，分别设计坝防渗体及排水设备。

设计采用隧洞泄洪。隧洞要设计进口部分，洞身尺寸及出口消能。通过隧洞水面线计算最终确定洞身尺寸。

【关键词】：

土石坝设计 洪水演算 枢纽布置 渗流计算 稳定验算 泄水建筑物

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Abstract

As to the Nature, geography, on the hydrlogy weather characteristic engineering sddress and analytic foundation in geology in hydrology of xi river watershed , though adjust calculate to get a high distance and the breath of overflow weir, and be designed water level and its flow. Adjust water level and its discharges,comparaed with the qualitative analysis between site and the type of the dam, settle the linear possition in the stalls of the dam, in the end we make sure the design of the dam is earth-filled dam. Here the foundation is last, outline of arrange to the total proceeding in vital point.

Considered with the geology ,reservoir area economy, anticipata an analysis of position, and comparaed with the technical from some kinds of earth-rock dams, at last I choose the oblique core embankment dam, And proceed the draw——up to basic section and outline sizes of the big dam, drain to the dam and batter. Glue the soil defend the seepage wall proceeds to defend the design of seepage. The neighborhood of site glues the soil anticipates a field and the pebbles anticipates field, through the calculation make sure to glue the soil anticipates field and pebblesses anticipate the field choose to use. The infiltration of the dam flous the calarlation inside, this design chooses to use the dam respectively in the centre section an orso one for each section of the dam with three section proceeds the design totally, calculating to permeate the discharge and overflow the water deep, the painting flous the spillage orders of permeate the batter decline. Earth filled dams are easy to lose steady, so as to calculate the stability, Certain under every kind of water level the minimun

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safety, calculate on and back getthe economic sation. On the minute part in big dam structure, design respectively the dam defend secpage and drain the equipment.

The design use spillway tunnel, which is located with diversion tunnel and air raid shelter. All through the line, it all used reinforced concrete lined tunnel. When design we should take more attention to water-hammer, and should design the aerated slots.

【Key words】:

earth-rock dam； damsite selection； choice of dam type； filtration routing； stability analysis； water release construction.

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目录

第1章 前言 .................................................................................... 1

1.1 设计的对象和背景 .................................................................................... 1 1.2 设计过程和方法 ........................................................................................ 1 1.3 设计任务 .................................................................................................... 2

第2章 工程基本资料 .................................................................... 3

2.1工程概况 .................................................................................................... 3 2.2工程条件 .................................................................................................... 3 2.3 自然条件 .................................................................................................... 7 2.4工程地质 .................................................................................................. 12

第3章 洪水调节计算 .................................................................. 14

3.1 洪水调节计算原理 .................................................................................. 14 3.2 堰顶高程及泄洪孔口的选择 .................................................................. 18 3.3 调洪演算结果与方案选择 ...................................................................... 37

第4章 坝型及枢纽布置 ................................................................ 39

4.1 坝址及坝型选择 ...................................................................................... 39 4.2 枢纽组成建筑物 ...................................................................................... 39 4.3 枢纽总体布置 .......................................................................................... 40

第5章 大坝设计 .......................................................................... 41

5.1土石坝坝型选择 ...................................................................................... 41 5.2 大坝的剖面尺 …… 此处隐藏：8330字，全部文档内容请下载后查看。喜欢就下载吧 ……