The invention relates to the technical field of
bridge engineering, and particularly relates to a bridge
abutment construction method. In the prior art, a bridge
abutment entering tunnel bottom is excavated to the bottom at one time, excavation height is large, construction site is large, if the side slope is loose,
slump is easily caused. The bridge
abutment construction method is characterized by comprising the following steps: cleaning tunnel outer side upward slope dangerous rock; carrying out anchor-plate retaining on the outer side slope of the tunnel; constructing foot locking anchor pipes on second lining portions on the two sides of an abutment front beam groove, additionally arranging temporary supports on the left side wall and the right side wall of a tunnel second lining, adopting step-by-step excavation for bridge abutment construction in the tunnel, adopting a concrete
retaining wall excavation scheme for hole digging piles from left to right, carrying out segmental excavation, excavating one support , and carrying out concrete pouring after excavation to the designed elevation; pouring bearing platform concrete at a time, and arranging surface protection ribs on four side faces of the bearing platform; and pouring the platform body concrete in two times, wherein the first pouring height is the height of the bottom surface of the padstone, and the second pouringheight reaches the designed elevation. The method has the advantages that the construction site is small, and the
slump phenomenon is prevented in segmented construction.