A foundation pit safety protection device based on municipal road engineering

Abstract

The invention provides a novel foundation pit safety protection device based on municipal road engineering, which relates to the technical field of municipal engineering, and includes a first installation column and a second installation column, and the two sides of the second installation column are fixedly connected with two Symmetrical rotating block, the inside of each rotating block is rotatably connected with a rotating plate, a protective pole is provided in the gap between the two rotating plates, and the two ends of the protective pole are rotationally connected with the sides of the two rotating plates that are close to each other . This invention is based on the foundation pit safety protection device for municipal road engineering, by setting the V-shaped design of different orientations of the first installation column, the second installation column, the rotating block, the rotating plate and the protection pole, and the slidable installation of the installation column and the support plate Designed to be used in foundation pits of different shapes, the volume of the protection device is reduced during transportation, which is convenient for storage and transportation. By setting the fixing mechanism and the second conical plug, it solves the problem of some muddy mud in the existing foundation pit protection device When the foundation pit of the road is protected, the base is not fixed stably, which leads to the collapse of the guardrail.

Description

technical field [0001] The invention relates to the technical field of municipal engineering, in particular to a foundation pit safety protection device based on municipal road engineering. Background technique [0002] The foundation pit is an earth pit excavated at the foundation design position according to the base elevation and foundation plane size. If the excavation is not deep, you can use the method of setting the side slope to stabilize the soil slope. The slope size is determined according to the relevant construction regulations. If the excavation is deep and there are buildings nearby, you can use the method of foundation pit wall support, shotcrete retaining method, and large-scale excavation. The foundation pit even adopts methods such as underground diaphragm wall and column-type bored pile interlocking to protect the outer soil layer from collapsing. There is no influence on nearby buildings. The well point method can be used to reduce the groundwater level....

AI Technical Summary

Problems solved by technology

[0002] The foundation pit is an earth pit excavated at the foundation design position according to the base elevation and foundation plane size. If the excavation is not deep, you can use the method of setting the side slope to stabilize the soil slope. The slope size is determined according to the relevant construction regulations. If the excavation is deep and there are buildings nearby, you can use the method of foundation pit wall support, shotcrete retaining method, and large-scale excavation. The foundation pit even adopts methods such as underground diaphragm wall and column-type bored pile interlocking to protect the outer soil layer from collapsing. There is no influence on nearby buildings. The well point method can be used to reduce the groundwater level. Natural air-conditioning freezing method can be used for excavation, etc. Since foundation pits have many safety hazards on the road, foundation pit protection devices need to be erected around foundation pits; since foundation pits are mostly geometric shapes with different shapes, but the existing Most of the protection devices for foundation pits are right-angle fences, which are inconvenient to use, and most of them cannot be stacked when stored after use, occupying a large space, and are not convenient for transportation. Although CN203145488U, CN205713186U, and CN207211951U use wire mesh The mutually rotatable splicing part of the frame solves the technical problem that it cannot be applied to different terrains, but the above solution still has the following technical problems: when the base of the foundation pit protection device protects the foundation pits of some muddy roads, the base The fixation is not stable, resulting in the dumping of the guardrail. In addition, the fine adjustment of the enclosed area cannot be realized after the splicing is completed and initially fixed. As the construction progresses, if you want to expand or reduce the enclosed area, you have to take Pull out all the fences and reposition them. In addition, if the upper part of the foundation pit in the central area of ​​the fence needs to build a sunshade net or a protective net, it needs to use external suspension equipment alone

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