Drainage Subgrade and Its Production Technology for Preventing Slipping and Cracking of Railway Filled Shoulder

Abstract

The invention discloses a drainage subgrade for preventing railway filling road shoulders from slipping and cracking and a production process thereof, including a main subgrade, a railway fixed horizontal plate, a horizontal plate bolt, a subgrade fixing seat, an anti-slip cracking shoulder and a road shoulder fixing seat, and the main subgrade adopts upper concrete The rainwater is discharged to the middle waterway through the filling groove, the through opening and the drainage hole. The anti-slip and cracked shoulders on both sides are successively made of soil layer, waterproof coating, anti-cracking brick layer, waterproof coating and The order of reinforcement layers is superimposed, and the concrete shell is poured on the outside, which can effectively improve the anti-sliding fracture ability of the shoulder. It effectively reduces the probability of sliding fractures, and has a strong drainage capacity and wide applicability.

Description

technical field [0001] The invention relates to the technical field of drainage roadbed, in particular to a drainage roadbed for preventing railway filling road shoulders from slipping and a production process thereof. Background technique [0002] The subgrade is a structure that directly supports the track formed by filling or excavation, also called the substructure of the line. The subgrade is connected with bridges and tunnels to form a line together. The subgrade has two basic forms depending on the terrain conditions. They are embankment and cutting, commonly known as filling and excavation. The function of railway subgrade is to directly lay track structure on the subgrade surface, so the subgrade is the foundation of the track. The subgrade load bears the weight of the track structure, that is, the static load, and also bears the train running When the dynamic load transmitted through the track, the line structure formed by the subgrade and the track together is a r...

AI Technical Summary

Problems solved by technology

[0002] The subgrade is a structure that directly supports the track formed by filling or excavation, also called the substructure of the line. The subgrade is connected with bridges and tunnels to form a line together. The subgrade has two basic forms depending on the terrain conditions. They are embankment and cutting, commonly known as filling and excavation. The function of railway subgrade is to directly lay track structure on the subgrade surface, so the subgrade is the foundation of the track. The subgrade load bears the weight of the track structure, that is, the static load, and also bears the train running When the dynamic load transmitted through the track, the line structure formed by the subgrade and the track together is a relatively loosely connected structural form, and the ability to resist dynamic load is weak. Therefore, the roadbed is a kind of geotechnical structure, which is often attacked and damaged by changes in natural conditions such as geology, water, rainfall, climate, and earthquakes, and has poor resistance. Therefore, the roadbed should have sufficient firmness, stability and durability. , for high-speed railways, the subgrade should also have reasonable rigidity to ensure the stability and comfort of trains running at high speed. Landslides are prone to occur after rainwater washing, causing the railway track to tilt and collapse. After a long time of use, the pure concrete shoulder is prone to sliding and fracture, which will also cause the railway track to tilt and collapse. At the same time, the drainage capacity of the railway subgrade is poor, which affects the railway track. normal operation of the

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