Self-expansion type anti-blocking flood water drainage dam for water conservancy project

Abstract

The invention discloses a self-expansion type anti-blocking flood water drainage dam for a water conservancy project, and belongs to the field of dams. The self-expansion type anti-blocking flood water drainage dam for the water conservancy project comprises a dam body; a plurality of uniformly distributed water discharge openings are formed in the middle part of the dam body in a cut manner; theinner walls of the water discharge openings are provided with wall-sticking sheath layers; by means of the arrangement of the wall-sticking sheath layers and power hardening layers, under the action of water pressure during floor water drainage, the wall-sticking sheath layers and the power hardening layers can have deformations fitted to the inner walls of the water discharge openings and becomehardened to generate a certain buffer effect on the water pressure, effectively improve the strength of the dam and prolong the service life; meanwhile, under the action of the water pressure, a pre-disintegration layer is gradually disintegrated, and an expansion air bag is exploded, so that a hidden expansion slot is emptied and communicates with the water discharge openings, which realizes expansion of the water discharge openings, effectively increases the flood water drainage volume, increases the flood water drainage speed and relieves the pressure of excessively gathered flood water onthe dam; and therefore, the situation that the dam is destroyed by rush of water is effectively avoided, and the potential safety hazard is reduced.

Description

technical field [0001] The invention relates to the field of dams, in particular to a self-expanding anti-blocking and flood-discharging dam for water conservancy projects. Background technique [0002] The general term of embankments and dams also refers to buildings and structures that are waterproof and water-retaining: for example, it is necessary to step up the construction of dikes and dams to prevent flooding. There are two main types of modern dams: earth-rock dams and concrete dams. In recent years, large-scale dams have adopted high-tech reinforced concrete construction. [0003] Concrete dams are mostly made of concrete, usually in deep and narrow valleys, because only concrete can withstand the high water pressure at the bottom of the dam. Concrete dams can be subdivided into concrete gravity dams, concrete arch dams, concrete buttress dams, etc. The main feature of a concrete dam is to use its own weight to support the pressure of the water body. The main fu...

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Problems solved by technology

[0004] The maximum displacement of the existing built dams is certain, so the flood discharge capacity is limited. When a flood occurs, when the flood volume is too large, huge water pressure will be generated on the dams. When the flood discharge speed of the dams is low When the flood increases, the pressure on the embankment will increase. Under continuous pressure, the embankment will be easily damaged, which will cause great safety hazards to the downstream crops and even the residents themselves.

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