CAJ | 학술논문

长沙枢纽船闸下游引航道口门区连接段处于支流沩水入汇口。对于有支流汇入的连接段航道，其水流条件的优劣除与枢纽河段的平面形态、枢纽平面布置关系密切外，支流汇入角和汇入比往往起到控制作用。试验研究表明：保障支流入汇连接段通航安全，可采取筑堤导流和疏浚引流低水整治措施；在中、洪水期，通过加高河口导流堤高程的工程措施调整支流水流入汇角已经不经济，采取调整连接段船舶进出闸航行线路的非工程措施，可有效解决干、支不利遭遇下船舶安全会遇的问题。
장사추뉴선갑하유인항도구문구련접단처우지류위수입회구。대우유지류회입적련접단항도，기수류조건적우렬제여추뉴하단적평면형태、추뉴평면포치관계밀절외，지류회입각화회입비왕왕기도공제작용。시험연구표명：보장지류입회련접단통항안전，가채취축제도류화소준인류저수정치조시；재중、홍수기，통과가고하구도류제고정적공정조시조정지류수류입회각이경불경제，채취조정련접단선박진출갑항행선로적비공정조시，가유효해결간、지불리조우하선박안전회우적문제。
The connection reach outside the entrance of lower lock of Changsha hydro-junction is in the inflow section of Weishui river. For the connection channel with inflow of a tributary, the flow condition is closely related not only to the plane form of hydro-junction reach and the overall layout of hydro-junction, but also to the junction angle and discharge ratio of tributary. Experimental study shows that the regulation measure of low dike for diver-sion and dredging for drainage can be taken to safeguard the navigation security in inflow section of tributary. But in median water level and flood period, it is not suitable to increase the height of diversion dike for adjustment of tribu-tary junction angle. It can effectively solve the ship safety encounter problems under the condition of disadvanta-geous confluence ratio by non-engineering measures such as adjusting the ship route for getting in and out of ship lock.