Opposite-pulling anchor type road double-side widening structure without new land and construction method of opposite-pulling anchor type road double-side widening structure

Abstract

The invention belongs to the technical field of roadbed engineering, and discloses an opposite-pulling anchor type highway double-side widening structure without new land and a construction method.The opposite-pulling anchor type highway double-side widening structure without new land comprises double-side thin plate walls, pulling anchors, sawtooth-shaped excavation lines and filling materials, and a foundation is arranged below the double-side thin plate walls. The anti-sliding and anti-overturning stability is guaranteed, newly-added loads are directly transmitted to the stable foundation on the lower portion through the foundation and the micro piles, the influence on an original embankment is small, it is guaranteed that the whole embankment is safe, new land is not needed, solid waste is fully used, and good economic and ecological benefits are achieved.

Description

technical field [0001] The invention belongs to the technical field of roadbed engineering, and particularly relates to a structure and a construction method for widening both sides of an anchored highway without newly acquiring land. Background technique [0002] With the development of driverless vehicles in China, special lanes need to be built, and existing highways need to be widened, upgraded, and reconstructed. Many existing high-grade highways in the vast area of ​​our country are in the form of embankments higher than the ground surface. Conventional widening methods require new land acquisition according to the original The slope is widened simultaneously up and down. Constrained by factors such as the increasing cost of land acquisition and demolition, the difficulty of coordination, and the inability to discharge solid waste from factories, the cost of road construction is getting higher and higher, and the environment is getting worse and worse. [0003] In orde...

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Problems solved by technology

[0002] With the development of unmanned vehicles in China, special lanes need to be built, existing roads need to be widened and upgraded, and many existing high-grade roads in vast areas of my country are higher than the ground surface in the form of embankments. Conventional widening methods require new land acquisition according to the original The slope ratio is widened up and down simultaneously. Due to the year-by-year increase in land acquisition and demolition costs, the difficulty of coordination, and the inability to discharge solid waste from factories, the cost of road construction is getting higher and higher, and the environment is getting worse.

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