Roadbed reinforcement structure of oblique anchor cable cement earth pile

Abstract

The invention discloses a roadbed reinforcement structure of an oblique anchor cable cement earth pile. The roadbed reinforcement structure comprises a first reinforced concrete slab, a second reinforced concrete slab, a plurality of cement earth piles, an upper anchor head and a lower anchor head, wherein the first reinforced concrete slab and the second reinforced concrete slab are positioned on roadbed side slopes; the plurality of cement earth piles with anchor cables are distributed in a staggered way and positioned inside a roadbed body; the upper anchor head and the lower anchor head are positioned at two ends of each cement earth pile. By arranging the first reinforced concrete slab and the second reinforced concrete slab on the roadbed side slopes on two sides, the roadbed reinforcement structure effectively limits lateral extrusion deformation of the roadbed side slopes, and improves the function of controlling the sedimentation of the roadbed body; by applying the cement earth piles to the parts above the toes of the roadbed side slopes, the roadbed reinforcement structure has an obvious reinforcement effect on the upper middle part of the roadbed body, and the disturbance on optical cables at the lower part by construction is small; by applying prestress to steel strands, the bending rigidity of cement earth piles is enhanced, and the probability of bending cracking of the cement earth piles is reduced, so that the roadbed reinforcement structure has high topographical adaptive capacity during construction and has good popularization and application effects.

Description

technical field [0001] The invention relates to an existing railway roadbed reinforcement technology, in particular to an existing railway roadbed oblique reinforcement technology using prestressed anchor cable piles. Background technique [0002] With the continuous development of my country's railway construction, many passenger railways are gradually converted to freight special lines, the operating load of the lines has greatly increased, and roadbed diseases have also increased. Among them, the subsidence and lateral extrusion of the existing roadbed are the main types of its diseases. Due to the subsidence of the roadbed and the deformation of the lateral extrusion, the upper ballast will settle, causing dislocation or deformation of sleepers and tracks, endangering railway trains Safe to run. Therefore, the reinforcement of the existing line diseased subgrade has been highly valued by the relevant railway operating units, and the research on subgrade reinforcement te...

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Problems solved by technology

[0004] Aiming at the problems existing in the existing oblique cement-soil pile embankment reinforcement structure, which affect the safety of the optical cable, poor lateral deformation control effect of the embankment body, low bending rigidity, and difficulty in the construction of the rotary grouting pile in the mountainous area, a method is proposed. Oblique Anchor Cable Cement Soil Pile Subgrade Reinforcement Structure

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