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南盘江流量小、滩多、坡陡、流急,从开远小龙潭至北盘江汇入口蔗香480多公里河道,若采用整治工程措施,以300马力100吨机驳为通航标准,需整治滩险150余处,修盘驳公路30余公里,盘驳码头六座,绞滩设施五十余处,通航保证率仅25％左右,年通过能力约两万吨,运输成本0.69元/吨公里。显然,用炸礁,疏浚的方法来实现南盘江通航机动船队是不可能的,只能采取梯级渠化工程措施,方能达到目的。天生桥的雷公滩、长约13公里、落差178米,天生桥两级电站水头共350米,航运规划已定为陆路驳运,本文着重就南盘江开远小龙潭至天生桥独立航道段的渠化工程有关的梯级水头、梯级布置原则、船舶过坝方式等问题进行初步探讨,以供有关部门研究参考。
Nanpanjiang small flow, the beach, slope steep, rapid flow, from the North Longtan to North Panjiang import sugar cane more than 480 kilometers of river courses, if the remediation engineering measures to 300 horsepower 100 tons machine barge for navigation standards, Need to rectify more than 150 beach insurance, repair discourse barge highway more than 30 kilometers, pier pier six, beach facilities more than 50, navigable assurance rate of only 25%, the annual capacity of about 20,000 tons, transportation costs 0.69 yuan / Ton km. Obviously, it is impossible to realize the maneuvering fleet of Nanpanjiang by means of reefing and dredging. Only by adopting cascade canalization engineering measures can we achieve our goal. Tianshengqiao Thunder Beach, about 13 km long, a drop of 178 meters, Tianshengqiao two-stage power station total of 350 meters, the shipping plan has been set land by sea, this article focuses on the South Panlongxian Longtan to Tianshengqiao independent channel section of the canal project Cascade head, cascade arrangement principle, the ship through the dam mode and other issues for preliminary study for the relevant departments for reference.