Construction method for hoisting and installing prefabricated bagged sand

Abstract

A construction method for hoisting and installing prefabricated bagged sand includes the following steps that (1) sand bags are filled on a deck barge; (2) a crane ship enters a dam construction position; (3) the sand bags are lightered to the crane ship through the deck barge, and the deck barge is berthed; (4) after the deck barge is berthed, pull rings on the two sides of each sand bag are arranged on lifting hooks on the two sides of a hanging bracket in a sleeved mode one by one; (5) after hoisted by the crane ship, the sand bags are shifted into a designated position on an operating water surface; (6) the hanging bracket is folded to a herringbone shape through a crane, and the sand bags slide into designated positions in water; (7) the crane carries with the hanging bracket to return to the position of the sand bags on the deck barge, and the hanging bracket is special for recovery of flat shapes of the sand bags; (8) the steps four to seven are repeated until all the sand bags on the deck barge are hoisted one by one. The method has the advantages that construction efficiency is high, losses are small after a single sand bag is damaged, and the forming speed is high in the shallow water area, and the bagged sand dam core filling construction efficiency of the shallow water area is improved. According to the test, throwing and filling quantity per day can reach 4000 m<3>, and construction efficiency is improved by about 60 percent.

Description

technical field [0001] The invention relates to a construction method for embankment, in particular to a construction method for hoisting and installing prefabricated bagged sand. Background technique [0002] Bagged sand (also known as geotextile bag-filled sand) is a new technology of embankment emerging in recent years. It is widely used in embankment, revetment, roadbed and other projects. It is mainly used as embankment core or main structure. Its characteristics The construction speed is fast, the quality is high, the forming is easy to control, and the overall stability of the structure is good. As the global demand for land resources continues to increase, land reclamation projects are being carried out all over the world. In the past, sand prisms filled with bags were often used in construction projects with shallow water and high beach surface around the coast. , the size of the bag body is relatively small, and the shape of the bag body is relatively easy. In th...

AI Technical Summary

Problems solved by technology

In the traditional process, the method of filling bagged sand with flaps is generally used, and the elevation of -1.0m ~ +1.5m is a difficult point in the construction of bagged sand embankment cores. The construction cannot be carried out due to the limitation of draft requirements, and the efficiency is extremely low even if the construction is carried out during the short high tide

In this range, the bagged sand filling process is not only difficult to fill by ship engine (the ship engine is arranged vertically to the dike body, because the center of the embankment is raised, the draught of the sand ship is not enough), it is also difficult to fill on land (the ship engine "pulls" Bag filling construction, it is difficult to operate on the standing bag manually at low water level)

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