犍为枢纽施工期船闸低水通航条件研究

Navigation conditions of ship lock under dry season during construction of Qianwei junction

岷江犍为航电枢纽工程是岷江乐宜段近期渠化的4个梯级中的第3级,对发展岷江航运和流域经济具有重要作用。为保证低水施工时段过闸船舶的安全,通过实船试验测定船闸上下引航道通航水流条件及船舶航行姿态等相关参数,分析低水期船闸通航的可行性及安全性。结果表明,船舶基本可安全进出闸,船闸灌泄水无不良流态,船舶系缆力满足要求,但船闸下游口门区斜流较大,应谨慎驾驶,必要情况下应停航。

The Qianwei navigation and hydropower project of the Minjiang River is the third of the four cascades in the recent channelization of the Leyi section of the Minjiang River.It plays an important role in the development of Minjiang shipping and river basin economy.In order to ensure the safety of ships passing the lock during the dry season period,we apply the actual ship test to determine the navigable current conditionsof the upper and lower approach channels of the ship lock navigable current conditions and ship navigation posture and other relevant parameters,analyze the feasibility and safety of navigable locks during the dry season period.The results show that the ship can basically enter and exit the ship lock safely,there is no bad flow state of the shi plock's filling and discharging water,and the ship's mooring force meets the requirements.However,the sloped current in the downstream entrance area of shiplock is large,so the ship should be steered cautiously,and the navigation should be suspended if necessary.