Anti-scouring construction method adopting steel trestle steel pipe piles on shallow water riverbed thick boulder covering layer

Abstract

The invention provides an anti-scouring construction method adopting steel trestle steel pipe piles on a shallow water riverbed thick boulder covering layer. The anti-scouring construction method comprises a shallow water riverbed thick boulder covering layer clearing construction method, a steel pipe pile construction method, a gabion backfill anti-scouring construction method and the like. The thick boulder covering layer on the surface of a riverbed is cleared away by using an excavator or a grab bucket, the problem that the steel pipe piles in the thick boulder covering layer cannot be inserted into the designed depth is solved, then the gabion backfill method is applied after partial backfill is carried out by utilizing gabions, and the purposes of improving the integrated stability and anti-scouring performance of a steel trestle are realized. The anti-scouring construction method solves the problem that the steel trestle is poor in integrated anti-scouring capacity and prone to collapsing due to the fact that the steel pipe piles on the riverbed thick boulder covering layer cannot be inserted into the designed depth; compared with a traditional construction method that steel pipe piles on a riverbed covering layer are directly stricken and inserted, the anti-scouring construction method has the advantages that two processes of thick boulder covering layer clearing and gabion backfill are added, so the integrated anti-scouring performance of the steel trestle can be improved; the application range of the steel trestle is greatly expanded.

Description

technical field [0001] The invention relates to the field of anti-scouring of riverbeds, in particular to a brand-new construction method for resisting water erosion by using gabion backfilling to reinforce steel trestle steel pipe piles after clearing boulder layers on thick boulder covering layers of shallow water riverbeds. Background technique [0002] In the process of building bridges across rivers, steel trestle bridges are often erected in advance beside the bridges as construction transportation channels. In addition, the steel trestle bridges can also be attached to erect work platforms to realize the transformation from water to land construction operations. The steel trestle bridge is composed of lightweight standardized truss unit members made of high-strength steel, beams, longitudinal beams, bridge decks, bridge seats and connectors, etc., and can be quickly assembled on-site with special installation equipment to be suitable for various spans and loads. The t...

AI Technical Summary

Problems solved by technology

[0008] Aiming at the defects of the prior art, the present invention provides an anti-scouring construction method of steel trestle steel pipe piles on the thick boulder covering layer of the shallow water riverbed. Remove the thick boulder covering layer on the riverbed surface near the steel pipe pile directly on the shallow river bed or on the transport ship, and then use a vibrating hammer to hammer the steel pipe pile to penetrate the boulder layer to solve the problem of steel pipe piles in the thick boulder covering layer. To solve the problem that the pipe piles cannot be inserted to the design depth, use boulders to partially backfill to the design requirements, and then use gabions to backfill, so as to improve the overall stability and erosion resistance of the steel trestle.

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