人民黄河
人民黃河
인민황하
Yellow River
2015年
8期
7-9,12
,共4页
冲淤量%时空分布%排洪能力%黄河下游
遲淤量%時空分佈%排洪能力%黃河下遊
충어량%시공분포%배홍능력%황하하유
scouring and siltation%temporal and spatial distribution%discharge capacity%Lower Yellow River
为了给黄河下游河道整治及滩区治理提供参考,利用实测资料对2000—2013年的黄河下游冲淤特点进行了分析,结果表明:①黄河下游全断面累计冲刷17.162亿m3,冲刷最大年份为2003年;②冲刷在纵向上的分布极不均匀,夹河滩以上河段冲刷面积超过了4000 m2,而艾山以下河段不到1000 m2;③同流量水位降幅上大下小,流量为3000 m3/s时水位降幅为1.33~2.58 m,其中高村以上河段超过2 m、利津河段为1.33 m;④下游河道主槽排洪能力显著增强。
為瞭給黃河下遊河道整治及灘區治理提供參攷,利用實測資料對2000—2013年的黃河下遊遲淤特點進行瞭分析,結果錶明:①黃河下遊全斷麵纍計遲刷17.162億m3,遲刷最大年份為2003年;②遲刷在縱嚮上的分佈極不均勻,夾河灘以上河段遲刷麵積超過瞭4000 m2,而艾山以下河段不到1000 m2;③同流量水位降幅上大下小,流量為3000 m3/s時水位降幅為1.33~2.58 m,其中高村以上河段超過2 m、利津河段為1.33 m;④下遊河道主槽排洪能力顯著增彊。
위료급황하하유하도정치급탄구치리제공삼고,이용실측자료대2000—2013년적황하하유충어특점진행료분석,결과표명:①황하하유전단면루계충쇄17.162억m3,충쇄최대년빈위2003년;②충쇄재종향상적분포겁불균균,협하탄이상하단충쇄면적초과료4000 m2,이애산이하하단불도1000 m2;③동류량수위강폭상대하소,류량위3000 m3/s시수위강폭위1.33~2.58 m,기중고촌이상하단초과2 m、리진하단위1.33 m;④하유하도주조배홍능력현저증강。
For the benefits of river regulation and flood management,the scouring and siltation in the lower Yellow River reach were analyzed with the measured runoff and sediment data during 2000—2013. In the past 14 years,1. 7162 billion m3 sediment has been scoured and the maximum scouring amount occurs in 2003. The scouring area is non-uniform in the longitudinal profile,4 000 m2 from Xixiayuan to Jiahet-an reach and less than 1 000 m2 from Aishan to Lijin reach. The water level of 3 000 m3/s decreases 1. 33~2. 58 m in the lower reaches, which exceeds 2 m in Gaocun Station and 1. 33 m in Lijin Station. Consequently the drainage capacity in the lower Yellow River has been in-creased significantly.