【正文】 簡(jiǎn)況 .................................................................................................... 8 現(xiàn)場(chǎng)安全檢查 .................................................................................................................10 大壩安全 綜合評(píng)價(jià) ..........................................................................................................12 結(jié)論和建議 ....................................................................................................................18 2 現(xiàn)場(chǎng)安全檢查 ...........................................................................................................................22 現(xiàn)場(chǎng)安全檢查依據(jù)和項(xiàng)目 ...............................................................................................22 存在問(wèn)題 ........................................................................................................................24 結(jié)論和建議 ....................................................................................................................27 大壩安全檢查附件 ..........................................................................................................27 3 工程地質(zhì)勘察與評(píng)價(jià) ................................................................................................................31 前期勘察工作成果 ..........................................................................................................31 本次安全評(píng)價(jià)勘察工作簡(jiǎn)述 ............................................................................................31 區(qū)域地質(zhì)概況 .................................................................................................................31 庫(kù)區(qū)地質(zhì)概況 .................................................................................................................32 工程區(qū)地質(zhì)概況 .............................................................................................................33 大 壩壩體填筑質(zhì)量與評(píng)價(jià) ...............................................................................................34 大壩壩基及壩肩工程地質(zhì)條件與評(píng)價(jià) ..............................................................................35 溢洪道工程地質(zhì)條件與評(píng)價(jià) ............................................................................................35 輸水 建筑物工程地質(zhì)條件與評(píng)價(jià) .....................................................................................35 結(jié)論和建議 ...................................................................................................................35 4 工程質(zhì)量評(píng)價(jià) ...........................................................................................................................37 評(píng)價(jià)依據(jù)及方法 .............................................................................................................37 工程質(zhì)量評(píng)價(jià) .................................................................................................................37 工程質(zhì)量綜合評(píng)價(jià) ..........................................................................................................39 建議 ...............................................................................................................................39 5 水庫(kù)大壩運(yùn)行管理評(píng)價(jià) .............................................................................................................41 管理概況 ........................................................................................................................41 大壩運(yùn)行 ........................................................................................................................41 大壩維修 ........................................................................................................................42 大壩安全監(jiān)測(cè) .................................................................................................................43 大壩運(yùn)行管理綜合評(píng)價(jià) ...................................................................................................43 建議 ...............................................................................................................................44 6 防洪標(biāo)準(zhǔn)復(fù)核 ...........................................................................................................................45 流域基本情況 .................................................................................................................45 水文氣象特性 .................................................................................................................45 基本資料收集整理 ..........................................................................................................45 洪水標(biāo)準(zhǔn) ........................................................................................................................49 設(shè)計(jì)洪水 ........................................................................................................................49 調(diào)洪計(jì)算 ........................................................................................................................61 水庫(kù)抗洪能力復(fù)核 ..........................................................................................................65 泄洪影響復(fù)核 .................................................................................................................68 結(jié)論 ...............................................................................................................................68 7 滲流安全評(píng)價(jià) ...........................................................................................................................69 運(yùn)行中暴露與滲流安全有關(guān)問(wèn)題及處理措施 ...................................................................69 評(píng)價(jià)依據(jù)及方法 .............................................................................................................69 大壩滲流安全評(píng)價(jià) ..........................................................................................................69 繞壩滲流評(píng)價(jià) .................................................................................................................71 溢洪道滲流安全評(píng)價(jià) .....................