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摘 要
設(shè)計背景：本工程位于江西婺源縣樂安河一級支流小港水的上游約160m處，壩址以上控制流域面積33。本流域上游為中低山區(qū)，山勢陡峭，中下游為低山丘陵區(qū)，山體零亂，沖溝發(fā)育。流域內(nèi)多年平均氣溫,多年平均降雨均值2047.7。徑流主要由降水形成，多年平均流量，多年平均總徑流量4040萬。壩址及庫區(qū)位于相對穩(wěn)定地塊內(nèi)，地震烈度屬七度以下。壩址區(qū)出露的地層古老，經(jīng)歷了多次構(gòu)造運動，斷層裂隙發(fā)育，巖石破碎，巖層褶皺和撓曲常見。地層巖性為前震旦系板溪群第四段綠泥絹云母千枚巖夾雜變質(zhì)砂巖，第四系松散堆積物及變質(zhì)輝長巖，巖性堅硬。
設(shè)計方法：用三角形法擬定洪水過程線，根據(jù)防洪要求，對水庫進行洪水調(diào)節(jié)計算，以確定壩頂高程。對可能的方案進行分析比較，確定主要組成建筑物的形式，輪廓尺寸及布置。詳細做出大壩設(shè)計，擬定細部構(gòu)造，進行水力靜力計算，護坡、趾板和施工組織的專題設(shè)計。本設(shè)計以一般混凝土面板堆石壩和一些已建復(fù)合土工膜堆石壩為參考，在注重各細部獨立分項設(shè)計的同時，綜合考慮整體工程的統(tǒng)一性。
設(shè)計內(nèi)容：本次面板堆石壩設(shè)計的主要內(nèi)容包括調(diào)洪演算，L型擋墻、復(fù)合土工膜設(shè)計，邊坡穩(wěn)定分析，副壩，趾板空間布置，工程量計算，導(dǎo)流施工設(shè)計。
本次設(shè)計我們掌握了堆石壩的設(shè)計方法，而且了解到堆石壩的一些重要的特點和設(shè)計時應(yīng)該注意的地方，并且我本人也在趾板和溢洪道的專題設(shè)計中，掌握了相關(guān)知識。完成了專業(yè)知識從理論學(xué)習(xí)到實際運用的過渡，體會到了作為一名水利工作者所肩負的責(zé)任。并對今后的工作打下了堅實的基礎(chǔ)。
關(guān)鍵詞：堆石壩、復(fù)合土工膜、護坡設(shè)計、趾板、施工組織設(shè)計
Abstract
Design Background: The project is located in Wuyuan, Jiangxi Le'an Hsiaokang River water level upstream tributary about 160, more than control site drainage area 33. The upper reaches of the watershed for the low mountains, steep mountains, the middle and lower reaches for the hilly areas, mountain messy, gully development. Basin for many years the average temperature, average rainfall for many years an average of 2047.7. Formed mainly by the runoff of precipitation, over the average traffic flow for many years an average of 40.4 million total. Dam and reservoir area is located in a relatively stable block, the seismic intensity is 7 degrees Celsius. Dam site the oldest strata exposed, through a number of tectonic movement, fault fracture, rock crusher, rock and flexural folds common. Lithology former Sinian the fourth paragraph of Banxi Group 1000 Green clay sericite metamorphic rock inclusions of sandstone, loose Quaternary deposits and metamorphic gabbro, lithologic hard.
Design Method: Using a triangle to develop flood hydrograph method, in accordance with the requirements of flood control, flood regulation on the calculation of the reservoir to determine the crest elevation. The program may be analyzed to determine the form of the main components of buildings, the outline of the size and layout. Dam made a detailed design, preparation of detailed construction, calculated for static hydraulic, spillway and the themes and designs for the plinth. The design of general concrete faced rockfill dam and a number of composite geomembrane has been rock-fill dam built as a reference, pay attention to detail in the breakdown of the design of an independent at the same time, considering the unity of the overall project. Design elements: The concrete face rockfill dam, including the main elements of design flood calculation, L-type retaining wall, composite geomembrane design, slope stability analysis, auxiliary dam, spillway design, spatial arrangement of the plinth, engineering calculation, lead Construction of the design flow. The design we have a design method of rock-fill dam, rockfill dam and that some of the important characteristics and the design should be noted that the local, and plinth I am also the topics and spillway design, acquire the relevant knowledge . From the completion of the professional knowledge to the practical application of theoretical study of the transition, experienced workers, as a water responsibilities. Future work and laid a solid foundation.
Key Words: rockfill dam, composite geomembrane,slope protection design, toe board, construction of organizational design.