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概述

陜南漢江流域出現了(le)一(yi)次大(da)(da)范圍(wei)、高強(qiang)度降水(shui)(shui)(shui)(shui)過(guo)程。降雨引起江漢干支流漲水(shui)(shui)(shui)(shui)，漢江安(an)康水(shui)(shui)(shui)(shui)庫(ku)入(ru)(ru)庫(ku)洪(hong)峰(feng)(feng)達到50年一(yi)遇，安(an)康水(shui)(shui)(shui)(shui)庫(ku)迎來建庫(ku)后最大(da)(da)入(ru)(ru)庫(ku)洪(hong)水(shui)(shui)(shui)(shui)。洪(hong)水(shui)(shui)(shui)(shui)過(guo)程峰(feng)(feng)高量大(da)(da)，安(an)康水(shui)(shui)(shui)(shui)庫(ku)充分發揮大(da)(da)型水(shui)(shui)(shui)(shui)庫(ku)攔洪(hong)、錯峰(feng)(feng)、削峰(feng)(feng)作用，取得了(le)顯(xian)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(ci)會商(shang)研究的(de)調(diao)度方案，安(an)康水(shui)庫(ku)在(zai)漲水(shui)時(shi)提前預泄騰出防洪(hong)(hong)(hong)庫(ku)容、在(zai)洪(hong)(hong)(hong)峰段(duan)控(kong)制下(xia)泄量(liang)，為下(xia)游抗洪(hong)(hong)(hong)搶險救災(zai)(zai)創造了(le)(le)有利條(tiao)件(jian)。經初步分析(xi)計算，這次(ci)漢江(jiang)安(an)康段(duan)特大洪(hong)(hong)(hong)水(shui)期間，通(tong)過(guo)(guo)(guo)對安(an)康水(shui)庫(ku)及時(shi)、合理調(diao)度，實(shi)現(xian)了(le)(le)三個方面的(de)減災(zai)(zai)效果。一是(shi)通(tong)過(guo)(guo)(guo)削(xue)峰調(diao)節將(jiang)可能進(jin)入(ru)安(an)康城(cheng)(cheng)區河(he)(he)段(duan)的(de)25537秒(miao)立(li)(li)(li)(li)米(mi)洪(hong)(hong)(hong)峰流量(liang)，削(xue)減至19178秒(miao)立(li)(li)(li)(li)米(mi)，削(xue)峰6359秒(miao)立(li)(li)(li)(li)米(mi)，降低下(xia)游安(an)康站洪(hong)(hong)(hong)峰水(shui)位達3.9米(mi)，避免了(le)(le)漢江(jiang)安(an)康城(cheng)(cheng)區南北兩(liang)岸和下(xia)游旬陽、白(bai)河(he)(he)縣城(cheng)(cheng)發生慘重損失。二是(shi)通(tong)過(guo)(guo)(guo)錯峰調(diao)節將(jiang)安(an)康站最大洪(hong)(hong)(hong)峰流量(liang)出現(xian)時(shi)間，由18日18時(shi)推遲至18日23時(shi)，滯后5小時(shi)，為安(an)康東(dong)壩片(pian)區3萬余名(ming)群(qun)眾全(quan)部(bu)安(an)全(quan)撤離贏得寶貴時(shi)間。三是(shi)通(tong)過(guo)(guo)(guo)水(shui)庫(ku)攔(lan)洪(hong)(hong)(hong)作用將(jiang)洪(hong)(hong)(hong)水(shui)總(zong)量(liang)的(de)28.7%，近5.36億立(li)(li)(li)(li)方米(mi)洪(hong)(hong)(hong)水(shui)攔(lan)蓄在(zai)庫(ku)內，減小了(le)(le)進(jin)入(ru)下(xia)游河(he)(he)道洪(hong)(hong)(hong)水(shui)總(zong)量(liang)，有利于(yu)下(xia)游洪(hong)(hong)(hong)水(shui)平(ping)穩通(tong)過(guo)(guo)(guo)，起到減少堤(di)防臨洪(hong)(hong)(hong)壓力的(de)作用。

通過對安(an)康(kang)水庫的(de)科學調度，優化(hua)了(le)天然形態(tai)下的(de)洪(hong)水形態(tai)，給漢江安(an)康(kang)段防洪(hong)搶險工作帶來了(le)有效保(bao)障與轉變，防洪(hong)減災作用顯著(zhu)。

目前(qian)，水庫壩體穩定，運行良好。