Concrete precast block, assembly interlocking apron and construction method of assembly interlocking apron

Abstract

The invention belongs to the field of water conservancy projects and discloses a concrete precast block, an assembly interlocking apron which is mainly used for fine-soil plain area ditch bed or field ditch bottom protection and a construction method of the assembly interlocking apron. Reinforcing steel bars are arranged on the periphery of the inner edge of the concrete precast block; and each reinforcing steel bar is provided with a plurality of steel bar connecting holes protruding out of the upper surface of the block. The assembly interlocking apron is formed by mutually and fixedly connecting multiple concrete precast blocks up and down and left and right, wherein the multiple concrete precast blocks are laid at the ditch bed or field ditch bottom. The overall flexible characteristic of the apron is obvious, high erosion resisting performance, deformation resisting performance and frost heaving and thaw collapse resisting performance are achieved, the apron is overall simple, low in construction cost and good in protection effect, influences on natural geological environments such as the river channel and ditch flood discharge capability, ground surface disturbance and vegetation deterioration are little, and the method is suitable for bottom protection of various river channels, ditches and field ditches distributed in a fine-soil plain area and particularly suitable for shallow buried underground construction protection of perennial water flowing or underground water exposing areas.

Description

technical field [0001] The invention belongs to the field of water conservancy engineering, and in particular relates to a concrete prefabricated block. The invention also relates to an assembled interlocking apron mainly used for protecting the bottom of a river ditch bed or an agricultural canal in a fine soil plain area. The present invention also relates to an assembled interlocking apron. Apron construction method. Background technique [0002] Under the action of long-term water erosion and manual dredging, river trench beds and soil agricultural canals continue to be cut down, seriously threatening the normal operation of projects such as shallow buried pipelines and optical cables. In order to avoid insufficient buried depth or partial exposure of underground facilities such as pipelines and optical cables, it is necessary to lay out anti-scouring and undercut works at the bottom of river trench beds and agricultural canals. [0003] At present, the bottom protectio...

AI Technical Summary

Problems solved by technology

In view of the above unfavorable conditions, the underground anti-scour wall is adopted. It is difficult to excavate the foundation trench and reduce drainage, and the abundant groundwater seriously affects the quality of the project; The high water content of rock and soil makes construction difficult and easily damaged; the use of riprap aprons and gabions, which are large in size, blocks river ditches and agricultural canals, reduces the cross-sectional area of ​​water, and affects flood discharge and flow

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