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概述

陜南漢(han)江(jiang)流(liu)域出現了(le)一(yi)次(ci)大(da)(da)范圍、高強度(du)降水(shui)過(guo)程。降雨引(yin)起江(jiang)漢(han)干支流(liu)漲水(shui)，漢(han)江(jiang)安康水(shui)庫入庫洪(hong)峰(feng)達到(dao)50年一(yi)遇，安康水(shui)庫迎來建(jian)庫后最大(da)(da)入庫洪(hong)水(shui)。洪(hong)水(shui)過(guo)程峰(feng)高量大(da)(da)，安康水(shui)庫充(chong)分發揮大(da)(da)型水(shui)庫攔洪(hong)、錯峰(feng)、削(xue)峰(feng)作用，取得了(le)顯著防洪(hong)減災效益。

科學調度發揮顯著防洪減災效益

按照省、市防指多次會商研究的(de)調度方案，安(an)(an)(an)(an)康(kang)(kang)水(shui)庫(ku)在漲(zhang)水(shui)時(shi)(shi)(shi)(shi)提前預泄騰出(chu)防洪(hong)庫(ku)容、在洪(hong)峰(feng)(feng)段控(kong)制下(xia)泄量，為下(xia)游(you)(you)(you)(you)抗(kang)洪(hong)搶險(xian)救災創造了有利(li)條件。經(jing)初步分析(xi)計算，這次漢江安(an)(an)(an)(an)康(kang)(kang)段特(te)大(da)洪(hong)水(shui)期間，通(tong)(tong)過(guo)對安(an)(an)(an)(an)康(kang)(kang)水(shui)庫(ku)及(ji)時(shi)(shi)(shi)(shi)、合理調度，實(shi)現了三個(ge)方面(mian)的(de)減災效果。一是通(tong)(tong)過(guo)削峰(feng)(feng)調節將(jiang)(jiang)可能進入安(an)(an)(an)(an)康(kang)(kang)城(cheng)區河段的(de)25537秒(miao)立米(mi)洪(hong)峰(feng)(feng)流量，削減至(zhi)19178秒(miao)立米(mi)，削峰(feng)(feng)6359秒(miao)立米(mi)，降低下(xia)游(you)(you)(you)(you)安(an)(an)(an)(an)康(kang)(kang)站洪(hong)峰(feng)(feng)水(shui)位達(da)3.9米(mi)，避(bi)免了漢江安(an)(an)(an)(an)康(kang)(kang)城(cheng)區南(nan)北兩岸和下(xia)游(you)(you)(you)(you)旬(xun)陽、白河縣城(cheng)發生(sheng)慘重損失。二是通(tong)(tong)過(guo)錯峰(feng)(feng)調節將(jiang)(jiang)安(an)(an)(an)(an)康(kang)(kang)站最大(da)洪(hong)峰(feng)(feng)流量出(chu)現時(shi)(shi)(shi)(shi)間，由18日18時(shi)(shi)(shi)(shi)推(tui)遲至(zhi)18日23時(shi)(shi)(shi)(shi)，滯后5小時(shi)(shi)(shi)(shi)，為安(an)(an)(an)(an)康(kang)(kang)東壩片區3萬余(yu)名群眾全部安(an)(an)(an)(an)全撤離贏得寶貴時(shi)(shi)(shi)(shi)間。三是通(tong)(tong)過(guo)水(shui)庫(ku)攔(lan)(lan)洪(hong)作用(yong)將(jiang)(jiang)洪(hong)水(shui)總(zong)量的(de)28.7%，近5.36億立方米(mi)洪(hong)水(shui)攔(lan)(lan)蓄在庫(ku)內，減小了進入下(xia)游(you)(you)(you)(you)河道洪(hong)水(shui)總(zong)量，有利(li)于下(xia)游(you)(you)(you)(you)洪(hong)水(shui)平穩(wen)通(tong)(tong)過(guo)，起到減少(shao)堤防臨(lin)洪(hong)壓力的(de)作用(yong)。

通過對安康水庫(ku)的科(ke)學調度，優(you)化了天然形(xing)態下的洪水形(xing)態，給漢江安康段防洪搶(qiang)險工作(zuo)帶來(lai)了有效保障與轉(zhuan)變，防洪減災作(zuo)用顯著(zhu)。

目前，水庫壩體穩定，運行良(liang)好。