Dam bag mounting construction method for inclined wall type rubber dam

Abstract

The invention discloses a dam bag mounting construction method for an inclined wall type rubber dam, and belongs to the field of water conservancy and hydropower and municipal engineering. During dam bag unfolding, a dam bag is fixed on the dam side, and the whole dam bag is horizontally unfolded along the bottom of the dam; a separating pier is arranged on each of the upper stream and the lower stream of the dam; one end of the dam bag is fixed through the separating piers, and the other end of the dam bag is dragged by two excavators arranged at the upstream and the downstream; an inclined wall embedded part is arranged at a position which is far away from the top end of the dam by 10cm; a hoist crane is fixed on the inclined wall embedded part; the upper end of the dam bag is fixed on the hoist crane, and the lower end of the dam bag is connected with a clamp for clamping the dam bag; operators standing on a step pull the hoist crane simultaneously to upwards lift the dam bag until the dam bag is flatly paved at an inclined wall section; holes are formed in the dam bag according to distances of inclined wall embedded bolts, and the dam bag is fixed through the bolts and nuts. The dam bag mounting construction method is easy to operate and short in working period; engineering cost, such as machinery cost and material cost, is reduced; the dam bag can be positioned in place; the difficulty in spreading and unfolding the dam bag which is heavier than 30 tonnages is avoided, and the problems of non-flat unfolding, movement in a spreading and unfolding process and the like are solved.

Description

technical field [0001] The purpose of the present invention is to provide a new type of inclined wall rubber dam bag installation and construction technology, and apply it to the inclined wall rubber dam with a length of about 100 meters, a relatively spacious construction site, and a water retaining height of 4-5m. The dam belongs to the field of water conservancy and hydropower and municipal engineering. Background technique [0002] In recent years, with the vigorous development of water conservancy construction and the continuous application of new technologies and new processes, rubber dams are used to block water in low-head dams. The rubber dam system consists of rubber dam bags, dam bag anchors, dam bag overflow pipes, water intake and drainage channels, pump rooms, filling and drainage pumps, etc. The water filling pump fills the rubber dam with water, the dam bag stands up, and the upstream water is stored. The drainage pump pumps the water in the rubber dam, and...

AI Technical Summary

Problems solved by technology

In the past, the installation of rubber dams used a hoist and a pulley block. This installation method has disadvantages such as slow expansion of the dam bag; easy deviation of the center line of the dam bag from the axis of the dam; slow movement of the hoist equipment group, etc.

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