Reinforced soil retaining wall for plateau permafrost regions and construction method thereof

Abstract

The invention relates to a reinforced soil retaining wall for plateau permafrost regions and a construction method thereof. A wall body structure is a multi-layer filling structure formed by filling step by step from bottom to top, and a geogrid composed of tie bars is arranged on the bottom face of each layer of the filling structure; the two sides of the multi-layer filling structure in the transverse direction are slopes, concrete modules are built from bottom to top to cover the surfaces of the slopes, and the tie bars in the filling structure extend into gaps between an upper layer of concrete modules and a lower layer of concrete modules and are fixed through plug pins. A rubble layer is arranged on a basement of the retaining wall, so that the cold reserves of a foundation of the retaining wall are increased advantageously, the ground temperature drops actively, permafrost is protected, and foundation thaw collapse is controlled to be within the overall deformation coordinationcapacity limit of the reinforced soil retaining wall; the rubble layer of the basement is of a flexible structure, the foundation frost heaving force can be damped, and foundation frost heaving is controlled to be within the overall deformation coordination capacity limit of the reinforced soil retaining wall; and a wall module and reinforced bodies are connected through the tie bars, and occurrence of the phenomenon of unstability of the retaining wall caused by breakage of the tie bars can be effectively avoided.

Description

technical field [0001] The invention relates to the technical field of traffic engineering construction, in particular to a reinforced soil retaining wall in plateau permafrost regions and a construction method thereof. Background technique [0002] In order to reduce the land width occupied by the railway embankment in the plateau permafrost area, setting up reinforced earth retaining walls is an important environmental protection measure. The main advantages of reinforced earth retaining walls are simple construction, low cost, less land occupation, beautiful appearance, can adapt to large foundation deformation, and compared with other types of retaining structures, it has good seismic performance. [0003] However, in the permafrost region, due to the influence of climate, ecology, micro-geomorphology, hydrological conditions, human activities and other factors, the permafrost foundation will experience large thawing and frost heave deformation. Reinforced soil retainin...

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Problems solved by technology

[0003] However, in the permafrost region, due to the influence of climate, ecology, micro-geomorphology, hydrological conditions, human activities and other factors, the permafrost foundation will experience large thawing and frost heave deformation. Reinforced soil retaining walls are not feasible

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