Soft soil foundation reinforcing structure under high embankment

Abstract

The invention discloses a soft soil foundation reinforcing structure under a high embankment. The structure comprises a ground beam which is arranged on a foundation and of which the top surface is flush with the surface of the foundation, side pile sets which are located below the two sides of the foundation respectively and are in rigid connection with the ground beam, and a middle pile set which is arranged in the middle of the foundation and located between the two side pile sets. A bearing plate is arranged at the top of the middle pile set, and a mattress layer is arranged between the bearing plate and the top of the middle pile set. A cushion layer is arranged between the top of each side pile set and an embankment. The structure is high in integrity, good in stability and easy to machine and manufacture, the manufacturing cost is saved, and the problem that under the action of high embankment loads, side piles in the composite foundation are prone to bending resistance weakening firstly and gradually lose strength under the action of transverse loads, so that composite foundation pile bodies are damaged successively, and consequently the whole roadbed is unstable is effectively solved. Meanwhile, the problems that the vertical bearing capacity safety reserve of the side piles is too high and the total settlement of the embankment center is relatively large due to the fact that high-strength piles are arranged at equal intervals in the embankment slope and the embankment center are solved.

Description

technical field [0001] The invention relates to the technical field of roadbed engineering, in particular to a soft soil foundation reinforcement structure under a high embankment. Background technique [0002] In recent decades, with the rapid development of social economy, the construction standards of railway and road subgrade engineering have been greatly improved and the construction period has been continuously shortened. , a large number of high-strength pile composite foundation treatment technologies such as CFG piles, reinforced concrete piles, and prestressed pipe piles are an inevitable choice for high-speed railway foundation treatment measures in my country. At present, the high-strength pile composite foundation treatment scheme is the first choice for all the high-speed railway lines under construction and to be constructed in my country. [0003] Although the high-strength pile composite foundation treatment technology adopted on a large scale can generally ...

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to provide a soft soil foundation reinforcement structure under a high embankment to solve the problems of poor bearing capacity and stability of the existing roadbed reinforcement structure and high construction cost

Images