Drainage tubular pile and soil nailing wall composite supporting structure

Abstract

The invention discloses a drainage tubular pile and soil nailing wall composite supporting structure, which consists of a supporting pile, a reinforcing mesh, a soil nail and an anchor rod, wherein the pile body of the supporting pile is provided with an anchor rod hole; the reinforcing mesh is fixed at the end of the anchor rod; the soil nail is arranged on the reinforcing mesh; the supporting pile is vertical to the ground; the anchor rod passes through the anchor rod hole in the supporting pile and is inserted into a supporting body; the end of the anchor rod is fixed by adopting a nut, and the reinforcing mesh is fixed at the end; meanwhile, the soil nail is driven into the supporting body, the reinforcing mesh is hung at the exposed end of the soil nail, and concrete is sprayed to the reinforcing mesh, so that the reinforcing mesh form a supporting panel; and the included angles between the anchor rod and the horizontal plane and between the soil nail and the horizontal plane are 30 to 35 degrees. The supporting pile, the reinforcing mesh, the soil nail and the anchor rod in the structure form a whole to bear the stress together, so that the protection capability for the supporting body is enhanced, the number of the supporting pile is reduced and the construction cost is saved.

Description

Technical field [0001] The invention relates to the field of building construction, in particular to a composite supporting structure of drainage pipe piles and soil nail walls. Background technique [0002] At present, supporting piles or soil nailed walls are widely used in the field of construction to support the slope of the foundation pit to protect the safety of foundation pit operations. In order to prevent the collapse of the supporting body, the supporting piles are generally arranged closely. Although this method can achieve a good supporting effect, it will greatly increase the construction cost of the project. Soil nailing wall operations have emerged in recent years for soil excavation and slope stabilization supporting structures, which are mainly used for foundation pits above the groundwater level, or foundation pits after artificial precipitation. These types of foundation pits are all shallow In deep foundation pits, the abundance of groundwater reduces the fri...

AI Technical Summary

Problems solved by technology

In order to prevent the support body from collapsing, the support piles are generally arranged closely. Although this method can achieve a good support effect, it will greatly increase the construction cost of the project.

The support structure used for soil excavation and slope stability, which has emerged in recent years in soil nailing operations, is mainly used in foundation pits above the groundwater level, or foundation pits after artificial precipitation. These types of foundation pits are all shallow In deep foundation pits, due to the abundance of groundwater, the friction force of soil nails is reduced, which in turn affects its support capacity. Therefore, in deep foundation pits, it is not suitable to use soil nail walls for support, and more pipe piles are used. As a support structure, the water-stop curtain is formed to prevent the support body from collapsing, but this method will directly lead to an increase in engineering construction.

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