Dam-passing navigation arrangement structure of upstream launching type ship lift

Abstract

The invention relates to a dam-passing navigation arrangement structure of an upstream launching type ship lift. The structure comprises an upper lock head, a ship lift main body section, main liftingequipment and a ship reception chamber, and the ship lift main body section comprises a ship lift ship chamber, a raft foundation, a full-closed cylinder structure, a balance weight well and a main lifting equipment machine room; the main lifting equipment is arranged in the main lifting equipment machine room; a balance weight which vertically ascends and descends is arranged in the balance weight well; the ship reception chamber is arranged in the ship lift ship chamber; when the ship reception chamber is positioned at the lower limit of the ship lift ship chamber, the balance weight is just positioned at the upper limit of the balance weight well; and when the ship reception chamber is positioned at the upper limit of the ship lift ship chamber, the balance weight is positioned at thelower limit of the balance weight well. A navigation line can be flexibly arranged, and the arrangement requirement of a high-water-head arch dam hub is met; the characteristics of large water level variation amplitude, high water level variation rate and the like which are common in hub engineering in alpine and canyon regions can be adapted; meanwhile, extra construction of a large-scale water retaining building and an anti-seepage system can be avoided.

Description

technical field [0001] The invention relates to the technical field of water conservancy and water transport engineering, in particular to an upstream launching type ship lift crossing a dam navigable layout structure. Background technique [0002] Navigable structures such as ship locks and ship lifts can overcome head differences, and are important facilities to ensure the normal navigation of cascade development rivers. For navigation across dams with high water heads, the widely used building type is mainly the vertical ship lift. According to the operating conditions of the ship-bearing compartment, the vertical ship lift is divided into two types: fully balanced type and launching type. The full-balance ship lift cabin is in an anhydrous environment, and the total weight of the ship-bearing box is always the same as that of the counterweight during operation, which has the advantages of low operating cost, mature and reliable technology, etc.; the boat cabin of the la...

AI Technical Summary

Problems solved by technology

However, for dam-type pivot projects such as arch dams and earth-rock dams, the navigation gates cannot be combined with the dam as part of the water-retaining structure, and ships cannot pass through the dam to achieve navigation goals. At the same time, complex terrain and river regimes must be considered Conditions may make it difficult to arrange the axis of navigable buildings near the shore, so navigable buildings can only be arranged separately on the left and right bank abutments by using the terrain

For alpine and canyon areas, since the dam abutment is generally a single-sided mountain terrain, if a fully balanced vertical ship lift is used, special water-retaining structures and anti-seepage systems need to be built, and the project investment is relatively large. In karst-developed areas, anti-seepage Infiltration systems are more difficult to implement

In order to adapt to the fluctuation of the upstream water level, the vertical ship lift adopts the conventional operation mode, and the elevation of the navigation facilities passing through the mountain downstream will be lower than the minimum navigable water level upstream, which will cause a large excavation of the abutment mountain, and even affect the construction of the arch dam hub. Abutment stability

In addition, the construction period of the ship lift arranged upstream may be restricted by the time node of the water storage and power generation of the hub, which requires the implementation of the ship lift to be as simple as possible

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