Engineering structure for improving water and sediment conditions of lock chamber of lock multi-section dispersive water conveyance system

Abstract

The invention discloses an engineering structure for improving water and sediment conditions of a lock chamber of a lock multi-section dispersive water conveyance system, which comprises a branch galleries and lock chamber water outlet holes arranged in the branch galleries. The end-to-end joint of each two adjacent branch galleries is respectively provided with an auxiliary water outlet gallery. Each auxiliary water outlet gallery is of a U shape or a rectangular shape. The minimum inundated depth at the top of each gallery is not less than the sill depth of a lock. The side walls of the auxiliary water outlet galleries are provided with a plurality of water outlet holes. Due to the adoption of the engineering structure, the uniformity of effluent in the lock chamber is effectively improved and the sediment deposition can also be prevented. Moreover, the engineering structure has simple structure and is convenient to construct, the operation and maintenance cost is obviously saved, and the engineering structure has good application prospect.

Description

technical field [0001] The invention relates to an engineering structure capable of improving the water flow conditions and sediment deposition conditions in the lock chamber of the multi-section dispersed water delivery system of the ship lock on a sandy navigable river, in particular to an engineering structure for improving the water flow in the lock chamber of the multi-section dispersed water delivery system of the ship lock. Engineered structures for sandy conditions. Background technique [0002] A ship lock is a ship-passing structure that overcomes the concentrated water level difference formed by the dam (or natural) on the river. It is composed of upper and lower lock heads, gates, and lock chambers. The water delivery system is the key facility to complete the filling and discharging process of the lock chamber so that the ship can overcome the concentrated water level difference and achieve the purpose of passing the dam. According to the requirements of differ...

AI Technical Summary

Problems solved by technology

The sediment deposition in the lock chamber is mainly concentrated in the non-water outlet area, namely the upper and lower lock heads of the ship lock, the first and second diversion ports (the diversion port is between the two water outlet sections), and the maximum sediment deposition thickness up to about 3m, thus reducing the minimum navigable water depth of the lock chamber, affecting the navigation of ships, and also increasing the maintenance workload and prolonging the maintenance time

[0005] Therefore, how to improve the water flow conditions and sediment deposition in the sluice chamber of the multi-section decentralized water delivery system has become a problem of great concern to construction, design and scientific research personnel, but there are few successful cases in this regard at home and abroad for reference

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