毕业设计（论文）-青海省沟后水库枢纽土石坝.doc

摘 要 本文主要是有关沟后水库土石坝枢纽的设计，沟后水库土石坝枢纽工程位于青海省共和县恰卜恰镇沟后村附近的黄河一级支流———沟后河上，系小（1） 型四等工程，主要建筑物为三级，由大坝、泄洪兼引水隧洞两部分组成。枢纽的主要任务是以灌溉为主，可灌溉共和县农田二万亩，林地五千亩，同时解决恰卜恰镇三万多居民生活及城镇工业用水，本水库为安置龙羊峡水库库区移民的配套工程。 设计内容主要包括： 一、大坝设计： 充分分析己知资料，确定洪水标准及工程级别，在此基础上进行坝型选择的论证，确定坝型、枢纽布置方案和建筑物形式；在坝型、枢纽布置及建筑物基本尺寸拟定后，进行坝工设计、渗流计算、稳定计算、沉降量计算、细部构造设计，并且做好地基处理，坝与岸和地基的连接工作。 二、遂洞设计： 根据资料分析和设计要求，首先进行隧洞的总体布置（布置在坝区河谷左岸），进口建筑物的型式与布置，出口的消能型式与布置，洞身型式与布置；其次进行水力计算。 关键词：水利枢纽工程 土石坝 隧洞 Abstract After this design mainly is the related ditch the Gou hou stone dam key position design, after the ditch the Gou hou stone dam key project is located the Qing hai Province Gonghe County divination exactly town ditch nearby a village Yellow River level of branches - - Gou hou the river bank, the project for is exactly small (1) four and so on the project, the main building is three levels, by the dam, the flood discharge concurrently derivation tunne ltwo parts is composed. The key position primary mission is by irrigates primarily, may irrigate the Gonghe County farmland 30,000Chinese acres, the forest land 5,000 Chinese acres, simultaneous lysolves exactly the divination exactly town more than 30,000inhabitants lives and the cities process water, it for places the Long yang Xia reservoir storehouse district immigrant's conveyan cesystem. Design features include : The Dams Design : Based on the known information, flood-level standards and engineering analysis, On this basis for dam-choice and comparison, Pa-based, programs and the general layout of buildings form; Pa-prepared, The general layout of buildings and the basic size, calculating its crest elevation, then seepage, the settlement terms, Ground handling, and the sides of dam and foundation work connected. The Tunnels design : Basic the information on the analysis and design of brochures on the request of the tunnel for general layout, will be left in its layout, its import patterns for building layout, export energy type layout. Keywords : dam Seepage calculation Stab