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

Abstract

The invention discloses a stepped reinforced concrete slab for preventing vehicle jumping of a bridge abutment and a construction method thereof. A transition section is set between the bridge abutment and an embankment to prevent vehicle jumping of the bridge abutment. The transition section mainly adopts stepped reinforced concrete slabs, which are backfilled and rolled in layers. After each step layer is backfilled with soil, a stepped reinforced concrete slab is made on it, and the surface of the slab is made into a slope, so that The wheel pressure of the rolling machine can fully roll the filling soil and the stepped reinforced concrete slab surface, reducing the problem that the traditional abutment surface is vertical, and the backfill soil rolling is limited by the wheelbase and the rolling is not compact. In this way, the subsidence of the subgrade and pavement caused by the settlement of the backfill soil caused by the rolling problem can be prevented, and the probability of abutment jumping can be effectively reduced. Aiming at the problem of "secondary vehicle jump" at the joint between the other end of the slab and the backfill soil in the traditional abutment lapping slab, the invention can also prevent the occurrence of the abutment secondary vehicle jumping problem.

Description

technical field [0001] 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. Background technique [0002] 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. Nowadays, the devel...

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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