CAJ | 학술논문

针对长江下游苏通大桥桥位河段的水文地质特性，对涨落潮分别采用3种潮流量测验测次分布方案，研究潮流量测次分布对潮量计算精度的影响。以连续实测潮流速资料推算的涨落潮量作为真值，将各不同测次方案下推算出的涨落潮量与之比较，进行误差分析。结果表明：潮量计算精度随着测次的增加而提高；目前感潮河段采用落潮流1h施测1次的常规测次方案较为合理；涨潮流0.5h施测1次会导致涨潮量系统误差偏小，净泄量比实际值偏大，继而影响桥位河段潮量计算精度和水资源量的控制，需要进行误差校正。
침대장강하유소통대교교위하단적수문지질특성，대창락조분별채용3충조류량측험측차분포방안，연구조류량측차분포대조량계산정도적영향。이련속실측조류속자료추산적창락조량작위진치，장각불동측차방안하추산출적창락조량여지비교，진행오차분석。결과표명：조량계산정도수착측차적증가이제고；목전감조하단채용락조류1h시측1차적상규측차방안교위합리；창조류0.5h시측1차회도치창조량계통오차편소，정설량비실제치편대，계이영향교위하단조량계산정도화수자원량적공제，수요진행오차교정。
According to the hydrogeologic properties of the Sutong Bridge location reach of the lower Yangtze River, three types of measurement time distribution were used to analyze the influence of measurement time distribution on tidal discharge measurement precision for flood and ebb tides. Flood and ebb tidal discharge calculated by continuously observed velocity data were selected as the true value and compared with the discharge calculated based on different measurement time distributions. The results show that the tidal discharge measurement precision improved with the addition of measurement times. The commonly used measurement scheme in which the discharge is measured once an hour during ebb tide is more reasonable. Discharge measured every half an hour during flood tide may lead to systematic error. Flood tidal volume is smaller and the sum of tidal volume is larger than the true value, which affects the tidal discharge measurement precision and the control of the water resources quantity. It is necessary to correct the systematic error.