CAJ | 학술논문

金沙江向家坝水文站受下游岷江、横江的来水顶托影响，断面水位流量关系复杂，致使水文站洪水预报难度加大。利用2009~2012年向家坝、高场和横江水文站整编及实测的水位流量资料，分析了横江、岷江单独涨水对向家坝水文站水位的顶托影响，并建立了向家坝站水位、流量与横江、岷江流量的三参数相关关系。结果表明：横江、岷江来水越大，金沙江来水越小，则向家坝水文站受到的顶托影响就越大；横江、岷江联合涨水时，对向家坝水文站水位顶托量最大可达4m。
금사강향가패수문참수하유민강、횡강적래수정탁영향，단면수위류량관계복잡，치사수문참홍수예보난도가대。이용2009~2012년향가패、고장화횡강수문참정편급실측적수위류량자료，분석료횡강、민강단독창수대향가패수문참수위적정탁영향，병건립료향가패참수위、류량여횡강、민강류량적삼삼수상관관계。결과표명：횡강、민강래수월대，금사강래수월소，칙향가패수문참수도적정탁영향취월대；횡강、민강연합창수시，대향가패수문참수위정탁량최대가체4m。
Xiangjiaba Hydrological Station is influenced by backwater of Minjiang River and Hengjiang River, and the relation-ship of water level and flow is complicated, which brings difficulty to the flood forecast. By using the measurement data of water level and flow of Xiangjiaba, Gaochang and Hengjiang Hydrological Stations, backwater effect on the water level of Xiangjiaba Hydrological Station was analyzed under the water rising of Hengjiang River and Minjiang River respectively. A three parameters relationship of water level and flow of Xiangjiaba Hydrological Station by consideration of the flow from Hejiang River and Min-jiang River was established. The results show that the backwater effect is more obvious when the incoming flows from Minjiang River and Hengjiang River are larger and the incoming water of Jinsha River is smaller;the backwater level of Xiangjiaba Hydro-logical Station can reach 4 m when the flow from Minjiang River and Hengjiang River rise at the same time.