A hollow slope protection structure for expansive soil slope and its construction method

Abstract

The invention belongs to the field of civil engineering, and in particular relates to a hollow slope protection structure for expansive soil slopes and a construction method thereof. The structure is composed of several slope protection blocks arranged staggered up and down. The slope protection blocks include a horizontal load-bearing plate formed by integral casting and two support plates vertically arranged below the load-bearing plate. The load-bearing plate corresponds to two There is a first countersunk hole extending into the support plate at the middle section of the support plate, a second countersunk hole is opened at the bottom of the support plate corresponding to the first counterbore, the upper and lower adjacent slope protection blocks are arranged alternately and the upper slope protection blocks are two The second counterbore of the support plate is respectively connected with the first counterbore near the two slope protection blocks below by mating with steel bars. The slope protection structure of the present invention has the advantages of low production cost, short construction period, strong overall pressure resistance, greatly simplifies the construction process, and has significant technical progress and market promotion value.

Description

technical field [0001] The invention belongs to the field of civil engineering, and in particular relates to a hollow slope protection structure for expansive soil slopes and a construction method thereof. Background technique [0002] Slope protection of expansive soil slopes is mainly to protect the stability of the soil on the slope surface, to prevent it from being washed by rainwater and to reduce the influence of surface water on the deformation of expansive soil, to prevent and delay the process of water absorption, swelling, softening and slope evolution of expansive soil slopes. Thereby protecting the overall stability of the slope. In the prior art, engineering protection such as sash protection, cover protection or geotextile protection is mostly used for slope protection, but the expansive soil slope protection in the prior art has the following problems: [0003] 1) The use of reinforced concrete frame slope protection not only has a long construction period bu...

AI Technical Summary

Problems solved by technology

[0003] 1) The use of reinforced concrete frame slope protection not only has a long construction period but also cumbersome steps. If anchors are installed, grouting construction is required to further prolong the construction period. The integrity is poor, it is difficult to resist the lateral pressure of expansive soil, and the cost is high;

[0004] 2) The use of block retaining walls or concrete retaining walls requires sealing and hardening of the slope surface, which is not conducive to environmental protection. At the same time, the block retaining wall is heavy and has high requirements for the foundation. Moreover, the drainage effect of the mortar block retaining wall is poor, and the wall It is easy to accumulate water and crack at the back; the dry retaining wall is also not suitable for large deformation of the soil behind the wall

Images