A device and construction method for improving the construction efficiency of ground-wall landfill sand bags

Abstract

The invention discloses a device for improving construction efficiency of diaphragm wall filling sand bags. The device comprises a sand box, a sand discharge control valve, a sand loading platform and a conveying belt, wherein a sand outlet is formed in one side of the sand box; the sand discharge control valve is mounted on the sand outlet; the sand loading platform is arranged just below the sand outlet; and the conveying belt is arranged on one side of the lowest point of the sand loading platform. A method for loading mechanically and throwing the sand bags by the conveying belt replaces manual sand loading and manual sand bag throwing, and is particularly suitable for construction of diaphragm walls which have deep and thick sand layers under the conditions that the construction period is short and the effect is urgently required to be improved, construction time of sand bag throwing for the diaphragm walls is expected to be shortened, and probability of accidents due to poor quality such as necking caused by collapse of slot walls of the diaphragm walls is reduced.

Description

technical field [0001] The invention belongs to auxiliary construction measures for landfilling sand bags in the construction of ground connecting walls, in particular to a device and a construction method for improving the construction efficiency of landfilling sand bags in ground connecting walls. Background technique [0002] In areas with rich groundwater, if the construction of the ground connection wall is not effective, water leakage between the walls after the excavation of the foundation pit, or even water and sand gushing, will result in excessive settlement outside the pit, and even damage to the enclosure structure. I-beam joints are generally used for ground connection walls. How to prevent concrete from flowing around the joints is the key to the success of the construction quality of the underground diaphragm wall. During the construction process, using joint boxes to prevent concrete from flowing around is costly and expensive. The difficulty is high, the con...

AI Technical Summary

Problems solved by technology

At present, the traditional method used at home and abroad is to manually fill sandbags and manually throw sandbags. This operation method needs to arrange workers to fill sandbags first, and then transport them to the ground connection wall before the concrete pouring of the ground connection wall. The disadvantage of this method is that manual work takes a long time to construct. After the reinforcement cage is lowered, such as waiting for the time process of pouring concrete, there is a risk of hole collapse and neck shrinkage, which will affect the construction period.

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