Stepped reinforced concrete slab capable of preventing abutment vehicle skips and construction method

Abstract

The invention discloses a stepped reinforced concrete slab capable of preventing abutment vehicle skips and a construction method of the stepped reinforced concrete slab. A transition section is arranged between an abutment and an embankment so that the abutment vehicle skips can be prevented. According to the transition section, the stepped reinforced concrete slabs are mainly adopted, the mode of layered backfill and layered roller compaction is adopted, after roller compaction is carried out on each step layer of backfill, each stepped reinforced concrete slab is arranged on the backfill, each slab surface is made to be a slope, the wheel rolling portion of a rolling machine can fully roll the backfill and the slab surface of each stepped reinforced concrete slab, the problem that due to the facts that the surface of a traditional abutment is perpendicular, and roller compaction of the backfill is limited by the wheel track, the backfill cannot be rolled compactly is solved, the situation that a roadbed or the road surface sinks due to backfill sedimentation caused by roller compaction is prevented, and the probability of the abutment vehicle skips is effectively reduced. A secondary vehicle skip can happen at the position of lap joint between the other end of a traditional bridge abutment butt strap and the backfill, and the problem of secondary abutment vehicle skips can be solved through the stepped reinforced concrete slab capable of preventing the abutment vehicle skips and the construction method of the stepped reinforced concrete slab.

Description

[0001] technical field [0002] The invention relates to a bridge abutment vehicle jumping technology and a construction method. By setting a transition section between the abutment and the embankment, the problem that the surface of the traditional abutment is vertical and the backfill soil is rolled compactly due to the limitation of the wheelbase is reduced. It belongs to the fields of civil engineering, traffic engineering and municipal engineering. [0003] Background technique [0004] With the development of the country's social economy, the transportation construction as an infrastructure has achieved rapid development in recent years. In 2005 alone, the road construction mileage has reached 1.9 million roads, including 40,000 kilometers of expressways, 320,000 bridges, and a cumulative length of 13,370 kilometers. Therefore, the safety, comfort, and service life of traffic construction are becoming increasingly important to the traffic operating environment. Now...

AI Technical Summary

Problems solved by technology

In the transition section between the highway and the bridge, due to the different materials (one soft and one rigid) of the two structures, the difference in stiffness and the uneven settlement of the backfill soil and the roadbed are prone to settlement differences, resulting in unevenness in the connection section between the road surface and the bridge abutment , there is a bridge abutment jumping phenomenon

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