Self-drainage combined landslide retaining structure and construction method

Abstract

The invention discloses a self-drainage combined landslide supporting and retaining structure and a construction method, and belongs to the field of rock and soil supporting and retaining engineering and slope treatment. The slide-resistant pile is composed of a concrete pile, a steel pipe, a drainage hole, inverted filter geotechnical cloth and a drainage gallery installation positioning bracket, and the upper section of the slide-resistant pile is formed by pouring pervious concrete and has water permeability; underground water can permeate into the pile body through the permeable section of the anti-slide pile, flows into the drainage hole through drainage and collection of the inner wall of the steel pipe, and is finally discharged out of a landslide body through the drainage gallery; the drainage gallery is divided into an upper piece and a lower piece, the upper piece is formed by pouring pervious concrete and also has a pervious function, and part of water in the landslide mass can infiltrate into the drainage gallery to be drained away. The two modes are combined, underground water in the landslide mass can be effectively discharged, and the landslide stability and the rainfall resistance are enhanced.

Description

technical field [0001] The invention belongs to rock-soil retaining engineering and slope treatment technology, and particularly relates to a combined landslide treatment and reinforcement structure technology of slope drainage and retaining. Background technique [0002] Geological disasters occur frequently in my country, among which landslide disasters are one of the most important geological disasters, which often cause traffic blockages, river blockages, and lead to a large number of life threats and property losses. Groundwater-related factors such as precipitation or irrigation are one of the main causes of landslide hazards. The rise of the groundwater level can soften the rock and soil and increase the hydraulic gradient. Many landslides have the characteristics of "slippery in heavy rain, lightly slippery in light rain, and not slippery without rain". In fact, it is only an intuitive statement that the landslide is induced by rainfall. Specifically, the landslide...

AI Technical Summary

Problems solved by technology

[0005] To sum up, the existing anti-slide piles with drainage function have complex drainage methods; the drainage corridors installed inside the existing slope have single functions and are difficult to construct; the drainage effect of the surface is not obvious and is ineffective in cold climates

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