Assembled soil nail wall structure and construction method

Abstract

The invention relates to an assembled soil nail wall structure and a construction method. The structure comprises soil nails and prefabricated grid panels, wherein the soil nails are uniformly and fixedly arranged in slope surface soil nail holes in the horizontal direction, the prefabricated grid-shaped panels are arranged on the slope surfaces; and the soil nails and the prefabricated grid-shaped panels are arranged in rows. The construction method comprises the following steps that the slope surface of a first layer is excavated and leveled, the soil nails and the prefabricated grid-shapedpanels are installed on the slope surface of the first layer, and the soil nails and the prefabricated grid-shaped panels connected with a side slope panel of the first layer are connected with the slope surface of a second layer, so that the quality of the panel can be reduced to a great extent by adopting foamed fine stone concrete, transportation is facilitated, installation can be carried outon the construction site, construction is convenient, safe, no field pollution is achieved, and the strength and the steel degree are high. By adopting the construction method, the use of a large machine tool is reduced, dispersed cement, sand and stones are not used, dust pollution is reduced, construction is safe and convenient, and construction and management of small projects are facilitated.

Description

technical field [0001] The invention relates to a structure and construction method of an assembled soil nail wall, which belongs to the technical field of geotechnical engineering foundation pit support, and is suitable for small construction scale, short construction period, good geological conditions, and site conditions that are not suitable for using large equipment and equipment foundation pit support. Background technique [0002] According to the relevant national regulations, special support is required for foundation pits exceeding a certain depth. For some foundation pits that do not exceed a certain depth but due to environmental protection requirements, it is also necessary to prepare a special plan or protect the slope to ensure the safety of the foundation. At the same time , due to the closed protection of the slope, the dust is also reduced and the pollution to the environment is reduced. [0003] Due to the general soil nail wall support structure, when co...

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Problems solved by technology

Due to the use of dry spraying machines, this kind of equipment is relatively small. However, the raw materials used are bulk cement, stones and sand, and the dust pollution is more serious. The more environmentally friendly wet spraying machine has larger equipment and requires concrete. Concrete is transported by tanker, which has a large volume and weight. When the depth of the foundation pit is small and the workload is small, or when the traffic is inconvenient, this kind of equipment is very inconvenient, that is, it is difficult to apply to the support of some small foundation pits.

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