【正文】 搶險耗費(fèi)的人力、財力折合人民幣高達(dá) 500多萬元，嚴(yán)重地制約著城市經(jīng)濟(jì)發(fā)展。s Bank of a lounge bridges. Keywords BaYinHe, Streamway, Administer, Project 目 錄 緒論 ................................................................................................................................................................ 1 1 概述 ............................................................................................................................................................. 2 水文 .................................................................................................................................................. 2 流域概況 ............................................................................................................................... 2 氣象 ...................................................................................................................................... 2 水文 ...................................................................................................................................... 2 泥沙 ...................................................................................................................................... 2 其他 ...................................................................................................................................... 3 工程地質(zhì) ......................................................................................................................................... 3 地形地貌特征 ....................................................................................................................... 3 河堤工程地質(zhì)條件 ............................................................................................................... 3 天然建筑材料 ....................................................................................................................... 3 結(jié)論 ...................................................................................................................................... 3 工程任務(wù)及建設(shè)規(guī)模 ...................................................................................................................... 4 地區(qū)社會經(jīng)濟(jì)情況 ............................................................................................................... 4 工程建設(shè)的必要性 ............................................................................................................... 4 歷史洪水及災(zāi)情 ................................................................................................................... 4 防洪標(biāo)準(zhǔn) ............................................................................................................................... 4 工程布置及建筑物 ............................................................................................................... 4 2 河道斷面計算 ............................................................................................................................................. 6 工程總體布置 ................................................................................................................................... 6 堤線布置 ............................................................................................................................... 6 防洪堤型選擇 ....................................................................................................................... 6 擋水建筑物型式選擇 ........................................................................................................... 7 河道防洪斷面及堤防型式選擇 ....................................................................................................... 7 行洪斷面設(shè)計 ....................................................................................................................... 7 沖刷計算 ............................................................................................................................... 7 行洪斷面水力計算 ............................................................................................................... 9 河道縱斷面推算 ................................................................................................................. 14 3 防洪堤設(shè)計 ............................................................................................................................................... 16 方案一 ............................................................................................................................................ 16 荷載及其組合 ..................................................................................................................... 17 荷載的計算 ......................................................................................................................... 17 穩(wěn)定計算 ............................................................................................................................. 19 方案二 ............................................................................................................................................ 20 荷載計算 ............................................................................................................................. 20 穩(wěn)定計算 ............................................................................................................................. 21 方案比較 ........................................................................................................................................ 22 4 1﹟ 閘壩的設(shè) 計 ...................................................................................................................................... 23 閘室的總體布置 ............................................................................................................................. 23 閘門的形式 ......................................................................................................................... 23 閘墩的設(shè)計 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