Railway frame bridge construction method

Abstract

The invention relates to a railway frame bridge construction method which mainly aims at solving the problems that an existing construction method can hardly meet the construction quality requirementand a construction period is long. In a foundation treatment construction method, construction schemes such as a broken-stone-sandwiched sand cushion layer, CFG piles, heavy grinding and dynamic compaction are adopted; in foundation construction, the axis and the side boundaries of a frame bridge are defined through a total station, the elevation is measured through a water level, and an excavation line and the excavation depth are determined; and in bridge body construction, supports and an inner mold are installed, reinforcing steel bars are manufactured and tied, an integrally-combined formwork is adopted as a bridge body outer mold, side wall and top board concrete is poured, edge wall and top board concrete is cured, the formwork is detached, and finally retaining wall construction and settlement joint and waterproof layer construction are conducted. The method has the beneficial effects that the construction speed is high, the quality is good, and a construction period is short.

Description

Technical field: [0001] The invention relates to a construction method of a railway frame bridge. Background technique: [0002] At present, in the process of high-speed railway construction, the bridge structure is relatively complicated due to the requirements of the seamless turnout of the high-speed railway on the bridge structure, which increases the difficulty of construction. It is difficult to meet the construction quality requirements with the current construction methods, and the construction period is long. Therefore, how to choose a reasonable bridge construction method to overcome the high-speed railway seamless turnout requirements for the stiffness of bridge piers and beams, and to facilitate construction, maintenance and improvement. The durability of the structure ensures the service life of the structure, which is one of the key technologies to be studied and solved urgently. Invention content: [0003] The technical problem to be solved by the present i...

AI Technical Summary

Problems solved by technology

[0002] At present, in the process of high-speed railway construction, the bridge structure is relatively complicated due to the requirements of the high-speed railway seamless turnout on the bridge structure, which increases the difficulty of construction

It is difficult to meet the construction quality requirements with the current construction methods, and the construction period is long. Therefore, how to choose a reasonable bridge construction method to overcome the high-speed railway seamless turnout requirements for the stiffness of bridge piers and beams, and to facilitate construction, maintenance and improvement. The durability of the structure ensures the service life of the structure, which is one of the key technologies to be studied and solved urgently