Double-wall type ribbed stone cutoff wall and construction method thereof

Abstract

The invention discloses a double-wall type ribbed stone cutoff wall and a construction method thereof. The double-wall type ribbed stone cutoff wall comprises a strip-shaped basic stone cutoff wall body. A plurality of impact-resistant stone cutoff wall bodies are arranged on the surface, facing a falling stone generating zone, of the basic stone cutoff wall body, and the distances between the impact-resistant stone cutoff wall bodies and the basic stone cutoff wall body are equal. The basic stone cutoff wall body is connected with the impact-resistant stone cutoff wall bodies through connecting parts. When falling stone impacts the wall, because the impact-resistant stone cutoff wall bodies bear a large proportion of impact stress and absorb the vast majority of deformation, the basic stone cutoff wall body which is a basic structure behind the impact-resistant stone cutoff wall bodies is not prone to damage, and the stability and safety of the system are high. The impact-resistant stone cutoff wall bodies bear the major impact stress of the falling stone and thus are prone to damage, but the impact-resistant stone cutoff wall bodies are disconnected, so that only the damaged impact-resistant stone cutoff wall bodies need to be dismounted and reconstructed during maintenance. Meanwhile, the construction method of the stone cutoff wall is further provided. The double-wall type ribbed stone cutoff wall and the construction method thereof have the advantages that construction is fast, post-disaster repairing is easy, and investment is small.

Description

technical field [0001] The invention belongs to the field of rockfall disaster protection engineering, and in particular relates to a double-wall reinforced rock-blocking wall and a construction method thereof. Background technique [0002] Rockfall disaster is one of the common geological disasters in mountainous areas. There are many inducing factors for rockfall disasters in mountainous areas, which are characterized by concealment, uncertainty, and the complexity of residual energy after bouncing and rolling of rockfalls, so it is difficult to completely eliminate them. The appropriate method is mainly to design engineering measures for disaster prevention and disaster reduction based on the understanding of the hazard degree of landslide disasters. [0003] In mountainous areas, when the retaining walls that have begun to function are damaged by external conditions, some traditional methods have certain defects in restoration or reconstruction, specifically in the foll...

AI Technical Summary

Problems solved by technology

[0003] In mountainous areas, when the retaining walls that have begun to function are damaged by external conditions, some traditional methods have certain defects in restoration or reconstruction, which are specifically manifested in the following aspects: 1) Poor stability

Reinforced concrete buttress-type retaining wall, because it requires a large foundation bearing capacity, and because the amount of steel bars per unit area of ​​the wall is high, a small foundation deformation will cause a large number of cracks on the surface of the retaining wall, which will affect its structure. The stability causes secondary damage; while the traditional masonry retaining wall has high requirements for the foundation bearing capacity, and because of the large wall section and high self-weight, when the external conditions change, the settlement joints of the retaining wall The walls at both ends will undergo significant deformation

2) The construction process is more cumbersome

3) Slow construction progress

Traditional retaining wall construction requires a large amount of stone, river sand, cement, water, electricity, mixing equipment, formwork supports, etc., so the construction speed is limited by factors such as the speed of masonry, the speed of materials entering the site, and the height of the daily masonry wall. The construction progress is slow and the construction period is long

4) High construction investment

However, these projects are also prone to damage that is difficult to repair under the action of load, resulting in a large amount of work and slow progress in restoration and reconstruction, and it is also bound to increase economic investment.

[0005] At present, some areas use the traditional reinforced retaining wall structure, which has the characteristics of low cost and high impact resistance. However, because the traditional reinforced retaining wall is a flexible structure, the structure will undergo large deformation under the impact of falling rocks. Usually, the restoration project needs to demolish the part of the large deformation structure as a whole, and then rebuild the masonry

The construction speed is slow, the engineering volume is large, and the economy is poor

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