Sunk type gas shield dam

Abstract

The invention provides a sunk type gas shield dam, and relates to a water retaining dam, in particular to the sunk type gas shield dam. The invention provides the sunk type gas shield dam with the advantages that an air bag can be conveniently dismounted and mounted; and a shield plate can be completely placed flatly. The sunk type gas shield dam comprises a concrete foundation, the shield plate and the air bag, wherein the shield plate is hinged onto the concrete foundation; the air bag is arranged at the lower part of the shield plate and drives the shield plate to do turning action; the shield plate is anchored on a shield plate anchoring surface through a first anchoring screw bolt; the air bag is anchored onto an air bag anchoring surface through a second anchoring screw bolt; a lifting machine is vertically placed; and a lifting plate is horizontally placed. The sunk type gas shield dam has the advantages that the structure is simple; the existing gas shield dam is improved; thereplacing work of the air bag is simplified; and meanwhile, the waterflow during dam collapse flow passing of the gas shield dam cannot be influenced.

Description

technical field [0001] The invention relates to a water retaining dam, in particular to a sunken air shield dam. Background technique [0002] Air shield dams are one of the most commonly used retaining dams in river channels, and are widely used in daily river channel management. Such as image 3 As shown in Fig. 1, the shield plate and the air bag of the existing gas shield dam are usually installed on one anchor point (that is, on the same anchor line perpendicular to the flow direction of the river). In this case, if one of the several airbags is damaged and needs to be replaced or repaired, the shield and the airbag must be removed together, because the steel shield is bulky and heavy, and it is troublesome to disassemble and reinstall . [0003] For this reason, for the convenience of maintenance and dismantling of the airbag, some production units have proposed a technical scheme of installing the airbag and the shield plate on two anchor lines respectively, such as...

AI Technical Summary

Problems solved by technology

However, in this technical solution, when the shield plate is leveled, due to the technical height of the anchors (such as bolts, etc.) of the airbag, the shield plate cannot be placed horizontally in theory, and the empty airbag still has a certain volume, which will lead to If the board is placed unevenly, a hidden dam will be formed, which will affect the water flow, especially when the water flow is large (such as floods), it will affect the flow velocity

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