Construction method for building girder bridge across business line

Abstract

The invention discloses a construction method for a building girder bridge across a business line. The construction method comprises the following steps that two rows of steel sheet piles are separately driven at the positions being 3.7m from both sides of an upstream and downstream lines of the business line, and the anchorage depth of steel sheet piles is greater than a predetermined value; adjacent steel sheet pile are interlocked; first layers of concrete of a bearing platform and side walls are poured; the positions of steel sheet piles are backfilled and compacted when the steel sheet piles are removed; steel pipes are driven to be grouted and multiple holes are formed in the steel pipes; connection protection of steel pipe columns is arranged, the bottom is reinforced concrete foundation, and the spacing of the steel pipe and columns is 4.2m, the steel pipe columns are connected by channel steel, and wire mesh is arranged between the steel pipe columns; wall body formworks of the side walls adopt steel and wood composite formworks, and the concrete of the side walls is poured three times; cover plate beams are erected by a crane, an overhead bridge is installed by adopting aseparable combination mode; and a temporary traffic crossing is arranged. According to the construction method for the building girder bridge across the business line, the amount of construction blockade of the business line is reduced, the construction period is shortened, and the cost is saved.

Description

technical field [0001] The invention relates to a construction method for constructing a girder bridge across a business line. Background technique [0002] The cover slab girder bridge of the railway comprehensive freight yard project needs to be built across the railway line. [0003] Due to the high traffic density and heavy traffic on the railway line, the construction near and across the railway line will have a great impact on the safety of railway operation, and the construction is difficult due to the impact of the business line. Therefore, under the condition of ensuring the safe operation of the commercial line railway, minimizing the impact on the operation of the commercial line, speeding up the construction progress, and reducing the cost expenditure are technical problems that need to be solved urgently. Contents of the invention [0004] The invention proposes a construction method for building a girder bridge across the business line. During the constructi...

AI Technical Summary

Problems solved by technology

[0003] Due to the high traffic density and heavy traffic on the railway line, the construction near and across the railway line will have a great impact on the safety of railway operation, and at the same time, the construction is difficult due to the impact of the business line