Connection system and method for self-drilling-type soil nails and reinforced earth retaining wall

Abstract

The invention discloses a connection system and method for self-drilling-type soil nails and a reinforced earth retaining wall. The system comprises a side slope, the reinforced earth retaining wall and a connection component. The several self-drilling-type soil nails are nailed into the side slope, the reinforced earth retaining wall is constructed on a foundation, and reinforced earth retainingwall components of the reinforced earth retaining wall are fixedly connected with the self-drilling-type soil nails through the connection component. The connection component comprises a connection part and vertical connection rods, the connection part is composed of a pressure bearing part and annular holding parts, and the vertical connection rods are tightly and fixedly installed in the annularholding parts. Each reinforced earth retaining wall component comprises a reinforced grid, a horizontal supporting rod, a connection rope and a clamping fixing mechanism, and the horizontal supporting rods are connected to the ends of the reinforced grids and connected with the vertical connection rods through the connection ropes. According to the connection system and method, the stability of the function of a fill subgrade and a steep slope is guaranteed, the loss risk caused by stress concentration generated when a reinforcement material unevenly deposits is reduced, and the constructionquality and reliability of the fill subgrade of the high-grade highways in the loess areas are improved.

Description

technical field [0001] The invention relates to the technical field of slope settlement prevention, in particular to a system and method for connecting a self-drilling soil nail and a reinforced retaining wall. Background technique [0002] my country has a vast territory and complex terrain. With the increasing number of infrastructure construction projects, more and more slope stability management problems are faced in the construction of highway projects. Especially in the construction process of high-grade highways in loess hilly and gully areas, it is inevitable to encounter various high-fill subgrades or fill subgrades across loess gullies. In order to ensure the stability of the subgrade, the general engineering measures are to set up retaining walls to effectively support and protect the subgrade filling or excavating cuttings, so as to prevent soil deformation and damage caused by adverse factors such as rainfall and vibration loads. In the current construction tec...

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Problems solved by technology

[0004] Aiming at the deficiencies in the prior art, the purpose of the present invention is to provide a self-drilling soil nail and reinforced retaining wall coupling system, which solves the problem of traditional reinforced retaining structures in excavated road sections and loess hilly gullies with steep terrain. While ensuring the stability of the junction between the filled subgrade and the steep slope, it reduces the risk of damage to the reinforcing material due to stress concentration caused by uneven settlement, and improves the filling capacity of high-grade highways in loess areas. Construction quality and reliability of subgrade

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