南水北调与水利科技
南水北調與水利科技
남수북조여수리과기
SOUTH-TO-NORTH WATER
2013年
z1期
20-21
,共2页
暴雨%洪水%产流参数%汇流参数%变化
暴雨%洪水%產流參數%彙流參數%變化
폭우%홍수%산류삼수%회류삼수%변화
heavy rainstorm%the flood%flow parameter%confluence parameter%Change
2012年7月21日,海河流域大清河北支水系突降特大暴雨,大清河北支拒马河暴发洪水,拒马河上游张坊水文站最大流量2570 m3/s,南拒马河落宝滩水文站最大流量2520 m3/s,洪水总量5000万 m3,经过40 km下泄到北河店,北河店最大流量降至120 m3/s,洪水总量1862万m3。通过对历史洪水分析,大清河北支流域河道产汇流参数发生了巨大变化,而产汇流参数的变化,直接影响着洪水计算结果。
2012年7月21日,海河流域大清河北支水繫突降特大暴雨,大清河北支拒馬河暴髮洪水,拒馬河上遊張坊水文站最大流量2570 m3/s,南拒馬河落寶灘水文站最大流量2520 m3/s,洪水總量5000萬 m3,經過40 km下洩到北河店,北河店最大流量降至120 m3/s,洪水總量1862萬m3。通過對歷史洪水分析,大清河北支流域河道產彙流參數髮生瞭巨大變化,而產彙流參數的變化,直接影響著洪水計算結果。
2012년7월21일,해하류역대청하북지수계돌강특대폭우,대청하북지거마하폭발홍수,거마하상유장방수문참최대류량2570 m3/s,남거마하락보탄수문참최대류량2520 m3/s,홍수총량5000만 m3,경과40 km하설도북하점,북하점최대류량강지120 m3/s,홍수총량1862만m3。통과대역사홍수분석,대청하북지류역하도산회류삼수발생료거대변화,이산회류삼수적변화,직접영향착홍수계산결과。
On July 21, 2012, heavy rainstorm hit the water system of the northern branch of Daqinghe River in Haihe River Basin. Floods oc-curred at the Jumahe River in the northern branch of DaqingheRiver. The maximum flood flow at Zhangfang Hydrological Station in theupper reachesoftheJumaheRiverwas2570m3/s;themaximumfloodflowatLuobaotanHydrologicalStationinthesouthernJumaheRiverwas2 520m3/swithfloodvolume50millionm3.Whenthefloodwent40kmdownwardstotheBeihedian,itsmaximumflowreducedto120m3/s,and thefloodvolumetherewas18.62millionm3.Accordingtotheanalysisonhistoricalfloods,thetremendouschangesoftheparametersofrunoff yield and flow concentration in the tributaries of the Daqinghe River took place, which could directly influence the calculated flood results.
