CAJ | 학술논문

近年来,东港冲刷发展,枯水期分流比逐年增大,相应西港分流比减少,西港航道航行条件恶化,对过往船舶的航行安全造成不利影响.为了分析东流西港航道的演变趋势,确定合理的航道维护方案,确保东流水道的畅通,文章建立河道二维水沙数学模型,并采用实测资料进行验证,在此基础上分析了东流水道维护方案的效果.结果表明:当西港航道进行维护性疏浚时,西港航道的通航条件得到了改善,但维护性疏浚停止后,西港航道仍会发生明显的淤积,影响西港枯水期的通航条件.建议尽早安排对东流水道东港航道进口段浅点和礁石进行定点清除,适时开通东港航槽,以满足长江航道通航要求.
근년래,동항충쇄발전,고수기분류비축년증대,상응서항분류비감소,서항항도항행조건악화,대과왕선박적항행안전조성불리영향.위료분석동류서항항도적연변추세,학정합리적항도유호방안,학보동류수도적창통,문장건립하도이유수사수학모형,병채용실측자료진행험증,재차기출상분석료동류수도유호방안적효과.결과표명:당서항항도진행유호성소준시,서항항도적통항조건득도료개선,단유호성소준정지후,서항항도잉회발생명현적어적,영향서항고수기적통항조건.건의진조안배대동류수도동항항도진구단천점화초석진행정점청제,괄시개통동항항조,이만족장강항도통항요구.
In recent years, because of the continuous scour in Donggang channel, the water diversion ratio of the Donggang Channel in Dougliu Waterway in low-water seasons has increased year by year, and that of the Xigang Channel has decreased accordingly, so that the navigation conditions of Xigang channel have began to deteriorate, that have adverse effects on the navigation safety for passing ships. In order to analyze the evolution trend of the Xi-gang Channel, determine a reasonable maintenance scheme for the channel,keep Dongliu waterway clear, a two-di-mensional mathematics model of channel water and sediment was built, which has been validated by measured data. Based on the model, the effects of Dongliu Waterway maintenance scheme have been analyzed. The result show that:When the maintenance dredging proceeds in the Xigang Channel, the navigation conditions will be improved, but still deposit obviously after the maintenance dredging stopped, this will affect the navigation conditions of the Xigang Channel in low-water seasons. Therefore, it is suggested that the targeted elimination of shoal and rocks at the inlet section of the Donggang Channel in Dougliu Waterway should be arranged as soon as possible, and the Donggang lane should be opened timely to meet the requirements of navigation in Yangtze River navigation.