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華北水利水電學院畢業(yè)設計 I 摘要 陵江水利樞紐工程 是位于 陵江上的 Ⅰ級建筑物,由 廠房段壩 段、溢流壩段 大孔口溢流壩段 、 深孔溢流壩和壩后廠房等組成 。 裝機容量 90 萬千瓦( 6 15 萬千瓦),它是一項具有防洪、發(fā)電、灌溉、航運和養(yǎng)殖等綜合效益的改革大自然的偉大工程。 本次的設計的內容包括施工導流和基礎處理設計 。在設計中,我們充分在地分析論證了樞紐處的地形地貌條件,水文地質情況,氣象資料等,結合當?shù)氐氖┕l件,依據(jù)各類水利工程規(guī)范,初步擬定導流方式采用分段圍堰法導流,其導流時段為全年導流。根據(jù)基本資料選定了導流標準為 20 年一遇洪水標準,通過定量 計算,進行了導流方案的經(jīng)濟比較,選擇導流方案為土石圍堰 、 束窄的河床和導流底孔泄流;在導流建筑物的設計中,導流底孔采用矩形,在導流建筑物的施工中,通過各建筑物工程量的計算,確定了各類施工機械的類型及臺數(shù)。在截流設計中通過截流水力計算,確定了在不同流速情況下各截流材料的粒徑大小及其數(shù)量,在基坑排水設計中,通過各期排水量的計算,確定了各期的排水設備。 在基礎處理部分,運用鉆孔爆破的方法開挖壩基,設計具體的爆破參數(shù)及其起爆網(wǎng)絡 .為提高壩基整體性,增強基巖承載力,并增加基巖密實性,減少通過基礎表層巖石滲漏量,還需對壩 基進行固結灌漿和帷幕灌漿,為此設計灌漿的布置方式和基本參數(shù) . 關 鍵詞;水利樞紐,施工導流,基礎處理 華北水利水電學院畢業(yè)設計 II Abstract The Lingjiang Hydrojunction Projects are at I level and located on the Lingjiang River. And the projects are posed of the power plant dam, the overflow dam, the overflow dam with big orifices, the overflow dam with deep orifices and the powerhouse behind dam. The installed capacity is about 900,000 kilowatts (615 ten thousand kilowatts), and it is an item with synthesis benefits, such as the flood prevention, electricity generation, irrigation, shipping and cultivation. It is called to be a great project for nature reform. This design includes the construction diversion and the design for foundation treatment. In the design, we have fully proven the key position terrain landform condition in the place analysis, the hydrology geology situation, and the meteorological data and so on. Considering the local construction condition, the rests on each kind of hydraulic engineering standard, we draw up the conduction current way that is to use the partition coffer dam law conduction current initially, and the conduction current time interval is perennial diversion. The conduction current standard is 20year frequency flood, according to the basic document. Through the quantitative terms and the conduction current plan economical parison, the programmer for diversion is embankment cofferdam, contracted river and the bottom orifice for releases. In the design, we use the rectangle diversion orifice in the diversion. In the construction, we determined the various types of construction machinery and the number by the calculation of works of the 華北水利水電學院畢業(yè)設計 III buildings. In the closure work design, we determined the different particle size and number of river materials the current situation through the river hydro calculation. In the reference pit drainage design, we determined the period’s drainage equipment through the displacement calculation in every period. In basic processing ponent, the use of blast by bore holes to excavate the dam foundation. Blasting parameters and the specific professional work are the main task in this design. To enhance the integrity of the dam foundation, and the bedrock bear, and increase the dense of the bedrock, and reduce leakage through the basic surface rock, we needed the consolidation grouting and the curtain grouting for the dam foundation. Because of the reasons above, this paper designed the layout and the basic parameters of the grouting. Key words: hydraulic engineering construction, the construction diversion, foundation treatment 華北水利水電學院畢業(yè)設計 IV 前 言 為使我們能把理論聯(lián)系實際,加深對所學知識的理解和掌握,為正式踏上工作崗位投入實際水利工程的規(guī)劃,勘測,設計,施工等。學校特意把大四下學期作為同學們畢業(yè)設計時期。根據(jù)學校安排,此次我所作的是實際工程:陵江水利工程施工導流與 基礎處理 。 水利工程施工是一門涉及面較廣、學術性較強、內容組織結構聯(lián)系較緊密的學科。通過對這次畢業(yè)設計使我把大學生活所學到的 零散 理論知識 得到 融會貫通,把書本上的理論知識 用來解決 實際問題,使自己的 理論 知識體系得到了升華。本次設計是在康迎賓 和路志強 的精心指導下 ,我們設計組的成員共同努力 ,完成了 這 次的畢業(yè)設計。 本次設計的主要研究方面主要有:施工導流 和基礎處理 。綜合運用了 水力學 、 水利工程施工 、 水工建筑物 、 水文學 和 大壩灌漿 等各學科知識。 本說明書共分 八 大章節(jié),其中包括:陵江水利樞紐概況、施工導流、導流建筑物設計、導流建筑物施工、截流設計和基坑排水以及 基礎處理 等內容。并對這 幾 大方面分別作了不同程度的介紹。 由于自身水平有限,設計中難免有些疏漏和不足之處,還望老師和同學們給予指正批評。 編者 李 坡 華北水利水電學院畢業(yè)設計 目 錄 1 工程概況 ................................................................................................................................... 1 樞紐地理概況 ..................................................................................................................... 1 工場地及運輸條件 ....................................................................................................... 1 水文氣象 .............................................................................................................................. 1 水文 ............................................................................................................................... 1 氣象 ............................................................................................................................... 2 工程地質及水文地質 .......................................................................................................... 4 當?shù)亟ㄖ牧? ...................................................................................................................... 5 砂礫石料 ....................................................................................................................... 5 粘性土料 ....................................................................................................................... 6 塊石料 ........................................................................................................................... 6 木材 ............................................................................................................................... 6 . 工程量 .......................................................................................................................... 6 2 施工導流設計 ........................................................................................................................... 9 導流方式選擇和導流時段劃分 .......................................................................................... 9 導流方式選擇 ...................................