羊倌沟水库设计与坝体优化

发布时间：2018-06-13 02:04

本文选题：混凝土面板堆石坝 + 优化设计　；参考：《西北农林科技大学》2014年硕士论文

【摘要】：羊倌沟水库位于青海省西宁市乐都区高庙镇保家庄村附近，是一座IV等小（I）型拦河式水库，组成水库枢纽的主要建筑物有：挡水坝、溢洪道、输水管和冲砂管。主要建筑物按4级建筑物标准设计，次要和临时建筑物级别为5级。其主要功能是以人畜饮水、农田灌溉为主，兼顾防洪。羊倌沟水库挡水坝采用混凝土面板堆石坝，土石坝由于其就地取材、施工方便、工期短、造价低、节约大量水泥、钢材、能适应较差的地质条件、安全性能好等优点，，在国内工程中被广泛的使用。但目前土石坝设计工程中，仍大多采用传统的设计方法，其设计仍处于经验阶段，而且在小型水库设计过程中,不太注重设计总体方案的优化。本文在依据水库基本水文资料及地质条件，对水库进行了供水规划和调洪演算，确定了水库规模，完成了水库枢纽布置及挡水建筑物的主要设计工作，利用ANSYS软件对面板坝进行了渗流稳定分析和应力变形分析。对水库整个设计工作完成两个方面的优化：即总体方案的优化和坝体断面的优化，总体方案的优化是在水库规模不变的情况下，讨论了在抬高水库汛限水位的同时增大水库溢洪道规模，在两者之间追求水库效益最大化；坝体断面的优化是用ANSYS建立坝体模型的基础上，在面板坝结构类型、材料布局已定的情况下，采用造价最低的原则，通过利用数学手段和ANYSY有限元分析软件，来获得结构断面的最优尺寸，两者均有比较重要的现实意义。
[Abstract]:Yanghuigou Reservoir is located near Baojiazhuang Village, Gaomiao Town, Ledu District, Xining City, Qinghai Province. It is a type of block type reservoir. The main buildings that make up the reservoir hub are: dam, spillway, water pipe and sand pipe. Main buildings are designed according to grade 4 building standard, and secondary and temporary buildings grade 5. Its main function is to drink water, farmland irrigation, flood control. The dam of Yanghuigou Reservoir adopts concrete face rockfill dam. The earth-rock dam has the advantages of easy construction, short construction period, low cost, saving a large amount of cement and steel, being able to adapt to poor geological conditions, and good safety performance, etc. It is widely used in domestic engineering. But at present, the traditional design method is still used in the design of earth-rock dam, and its design is still in the stage of experience, and in the process of the design of small reservoirs, little attention is paid to the optimization of the overall design scheme. Based on the basic hydrological data and geological conditions of the reservoir, the water supply planning and flood dispatching calculation of the reservoir are carried out in this paper, the reservoir scale is determined, and the main design work of the reservoir hub layout and water retaining structure is completed. The seepage stability analysis and stress deformation analysis of concrete face dam are carried out by ANSYS software. The whole design of the reservoir is optimized in two aspects: the optimization of the overall scheme and the optimization of the section of the dam. This paper discusses how to increase the scale of the reservoir spillway while raising the flood limit water level of the reservoir, and to pursue the maximum benefit of the reservoir between the two. The optimization of the dam section is based on the establishment of the dam body model by ANSYS, and the structural type of the face slab dam. When the material layout has been determined, the principle of lowest cost is adopted to obtain the optimal size of the structural section by means of mathematical means and ANSYS finite element analysis software. Both of them have important practical significance.
【学位授予单位】：西北农林科技大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TV62;TV641.4

【共引文献】