Dual-balance-weight plate column type road cutting supporting and retaining device with diagonal bracing

Abstract

The invention discloses a dual-balance-weight plate column type road cutting supporting and retaining device with diagonal bracing. The device comprises a plurality of columnar supporting and retaining walls which are arranged on the two sides of a road and extend along the road direction, wherein each columnar supporting and retaining wall comprises a columnar retaining wall, an upper balance-weight plate and a lower balance-weight plate; the upper balance-weight plate and the lower balance-weight plate are arranged on the outer side of the columnar retaining wall and are vertical to the columnar retaining wall; the lower balance-weight plate is arranged at the bottom of the columnar retaining wall; the upper balance-weight plate is positioned above the lower balance-weight plate; a slope type wall heel is arranged at the bottom of the columnar retaining wall and comprises a wall heel which is arranged at the bottom of the columnar retaining wall and a wall toe plate which is arranged on the inner side of the bottom of the columnar retaining wall and is vertical to the columnar retaining wall; diagonal bracing strips are arranged above the wall toe plate. According to the dual-weighing plate column type road cutting supporting and retaining device with diagonal bracing provided by the invention, the labor intensity of field workers can be reduced, the operation condition is improved, the effect of environmental protection is improved, and the project cost is reduced.

Description

technical field [0001] The invention relates to the technical field of road cutting engineering, in particular to a double counterweight plate column type road cutting support device with diagonal braces. Background technique [0002] At present, the existing road and railway slope retaining structures often adopt a gravity-type inclined structure. The breast slope in this structure is generally 1:0.1 to 1:0.2, and the construction conditions for it are manual excavation. However, with the popularization of large-scale machinery, all slopes have now been excavated by large-scale machinery, and the slope of the temporary construction slope is much slower than 1:0.2. The rock-soil boundary conditions behind it changed from original surrounding rock to backfill soil, and the earth pressure increased significantly. Because the gravity retaining wall needs to rely on its own gravity to resist the earth pressure, it needs a lot of concrete and stone, and it occupies a large area,...

AI Technical Summary

Problems solved by technology

However, with the popularization of large-scale machinery, all slopes have now been excavated by large-scale machinery, and the slope of the temporary construction slope is much slower than 1:0.2. The rock-soil boundary condition behind has changed from the original surrounding rock to the backfill soil, and the earth pressure has increased significantly

Because the gravity retaining wall needs to rely on its own gravity to resist the earth pressure, it needs a lot of concrete and stone, and it occupies a large area, requires more excavation operations, and has poor environmental protection; in addition, the plain concrete gravity retaining wall has poor seismic performance. It relies on concrete to resist tension, so the material performance cannot be fully utilized, and the economy is poor; while the mortar-built stone retaining wall has even poorer earthquake resistance, and the labor intensity of workers during construction is extremely high, so it is difficult to effectively guarantee the construction quality

The above problems all indicate that the traditional plain concrete or grouted gravel gravity structure has lagged far behind the actual material, design and construction technical conditions, so it is necessary to update the technology

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