該流域氣候溫和，水量充沛，水面平緩，含砂量小，對(duì)充分開(kāi)發(fā)這一地區(qū)的航運(yùn)具有天然的優(yōu)越條件。流域內(nèi)有耕地700多萬(wàn)畝，礦藏資源十分豐富，工礦企業(yè)較發(fā)達(dá)，有國(guó)家最大的有色金屬冶煉工程銅基地及腹地內(nèi)的建材輕工。原材料及銷(xiāo)售地大部分在長(zhǎng)江流域各省、市地區(qū)，利用水運(yùn)的條件十分優(yōu)越。
流域梯級(jí)開(kāi)發(fā)后，將建成一條長(zhǎng)340km通航千噸級(jí)駁船的航道和另一條長(zhǎng)50km通航300噸級(jí)駁船的航道，并與長(zhǎng)江、淮河水系相互貫通形成一個(gè)江河直達(dá)的上游水路運(yùn)輸網(wǎng)。同時(shí)也為沿江各縣市擴(kuò)大直流灌溉創(chuàng)造有利條件。對(duì)促進(jìn)沿河地區(qū)的工農(nóng)業(yè)發(fā)展具有重要的作用，社會(huì)和經(jīng)濟(jì)效益十分顯著。
1 綜合說(shuō)明………………………………………………………………………………………………..3
1.1工程概況……...…………………………………………………………………………………….3
1.2設(shè)計(jì)依據(jù)……………………………………………………………………………………............4
1.3設(shè)計(jì)成果............................................................................................................................................4
2水文.........................................................................................................................................................10
2.1流域概況..........................................................................................................................................10
2.2氣象..................................................................................................................................................10
2.3洪水..................................................................................................................................................10
3工程地形、地質(zhì)
3.1閘址地形..........................................................................................................................................12
3.2閘址地址..........................................................................................................................................12
3.3當(dāng)?shù)亟ㄖ牧?.................................................................................................................................12
3.4 地震………………………………………………………………….............................................13
4工程布置及建筑物.................................................................................................................................14
4.1設(shè)計(jì)依據(jù)..........................................................................................................................................14
4.1.1工程等級(jí)及建筑物級(jí)別...........................................................................................................14
4.1.2設(shè)計(jì)依據(jù)...................................................................................................................................14
4.1.3設(shè)計(jì)基本資料...........................................................................................................................15
4.2工程總體布置..................................................................................................................................17
4.2.1船閘的布置...............................................................................................................................17
4.2.2水電站的布置...........................................................................................................................18
4.2.3泄水閘的布置...........................................................................................................................18
4.3主要建筑物（泄水閘）..................................................................................................................18
4.3.1閘孔設(shè)計(jì)...................................................................................................................................18
4.3.2消能防沖設(shè)計(jì)...........................................................................................................................22
4.3.3防滲排水設(shè)計(jì)...........................................................................................................................27
4.3.4閘室的布置...............................................................................................................................31
4.3.5閘室穩(wěn)定計(jì)算...........................................................................................................................36
4.3.6閘室底板結(jié)構(gòu)計(jì)算...................................................................................................................40
4.3.7兩岸連接建筑物設(shè)計(jì)...............................................................................................................45
