Combined type ship lock structure

Abstract

A combined type ship lock structure comprises an integrated structure, connecting pieces and sheet piles. The integrated structure is composed of a lock wall and a flat-bottom-shaped bottom plate. The elevation of the top of each sheet pile is between the original ground elevation and the elevation of the top of the lock wall, the elevation of the bottom of each sheet pile is smaller than or equal to the elevation of a foundation surface, and the elevation of the top face of backfill is smaller than or equal to the elevation of the top of the lock wall. During excavation, lateral bracings are adopted, and a built ship lock is very close to the combined type ship lock. Before construction, the sheet piles, the lateral bracings and the connecting pieces are prefabricated. The connecting pieces are fixed to the sheet piles to connect the sheet piles with the integrated structure, then, the bottom plate is constructed, and finally, the lock wall is constructed. By means of the combined type ship lock structure, the amount of reinforced concrete can be reduced, the stress of the integrated structure can also be improved so that the combined type ship lock structure can meet the requirement of higher filling behind a wall better, the excavated volume of earthwork can also be reduced, and a series of problems caused by stacking of abandoned soil can be avoided. The combined type ship lock structure can expand new study fields for design and type selection of building near ship lock structures.

Description

technical field [0001] The invention relates to the technical field of ship lock engineering, and more specifically relates to a ship lock structure to be built at a position relatively close to an existing ship lock. Background technique [0002] Ship lock is a kind of hydraulic structure set up to overcome the concentrated water level difference on the channel, and it plays a pivotal role in water conservancy and transportation. The integral ship lock structure is a trough-shaped structure connected by lock walls on both sides and a bottom plate, also known as a "U"-shaped structure. The integral ship lock structure can be divided into two types: flat bottom and reverse arch bottom. The flat-bottom integral ship lock structure has the advantages of good integrity, strong anti-seepage, relatively uniform foundation reaction force distribution, and relatively low requirements for foundation bearing capacity. However, when the lock chamber is wide and the fill behind the wal...

AI Technical Summary

Problems solved by technology

For this reason, various measures have been proposed, such as row pile support, rock-socketed double-row support piles, etc. when excavating and constructing adjacent ship locks (see Pan Xuanhe's master's thesis of Changsha University of Science and Technology in 2010 "Foundation with row pile support structure The impact of excavation of pits on adjacent ship locks", Lingwei Master Thesis of Changsha University of Science and Technology in 2013 "Application and numerical analysis of rock-socketed double-row support piles in deep foundation pit engineering adjacent to ship locks") Although the above methods will have some impact on engineering practice Good effect and guiding significance, but when the location of the adjacent ship lock is very close to the existing ship lock (the distance between the axis of the lock chamber is less than 100m), the above methods may not be implemented in engineering practice

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