Self-erecting guard wall structure of grid underground wall

Abstract

The present invention discloses a free-standing encasing structure of grid ground wall that consists of inner ground wall, middle ground wall, outer ground wall, punched steel plates and top plates. The section of the inner ground wall is of a serial T-shapes, the section of the outer ground wall is also a series of T shapes and is corresponding to the T-shaped sections of the inner ground wall. Between corresponding T sections is traverse I-shaped middle ground wall that is connected to corresponding T sections via punched steel plates. The top plates are positioned on the top of the inner, middle and outer ground wall. This invention has strong resistance to incline, slide and seepage, meets the needs of structural and environmental safety, and has the advantages of holistic stability, strong resistance to apophysis, little distortion on digging, slight effects on the environment and wide application range.

Description

Technical field: [0001] The invention relates to the technical field of buildings, in particular to a self-supporting retaining wall structure for a lattice-shaped underground wall used as an earth-retaining and water-stopping structure. Background technique: [0002] At present, domestic hydraulic retaining wall structures include caissons, cubes, cylinders, buttresses, etc., most of which are used on good foundations with high foundation bearing capacity; and under soft soil foundation conditions with low foundation bearing capacity, generally Pile buttress structures or anchor sheet pile structures are used. The former is generally arranged under certain water depth conditions, or some large-scale excavation construction is carried out; the latter requires anchor sheet piles and a large number of anchor structures to be arranged in a certain width area. , the project area still needs piling, and there are a lot of excavation and filling works behind the wall, which will h...

AI Technical Summary

Problems solved by technology

When adopting the construction method of setting an external pull-anchor structure outside the pit, a large underground use area is required, which will have an adverse effect on the use of the underground space in the future, and will cause waste of adjacent projects and underground space

When the construction method of setting temporary steel supports or concrete supports in the pit is adopted, the temporary supports must be removed after the excavation of the foundation pit is completed, resulting in waste of resources

Especially the concrete supports used in deep and large-area foundation pits waste a lot of resources, and the demolition process and waste materials will also cause environmental pollution

It is inconvenient to excavate the supporting enclosure structure, and it is necessary to make a trestle for excavation

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