Abstract: After years of service period, some of the gravity abutments demonstrate various degrees of performance issues that might be adversely affect the safe operation of highways. The lattice bean with ground anchor is a relatively popular and matured method and is widely applied in various mitigation projects. The tension ground anchor with lattice beams at both sides of abutment approach is rarely used. A tilted gravity abutment wingwall at Station K153+478 of YongTaiWen Expressway was rehabilitated by using this technique. The design and construction procedures of the tensioned ground anchor with lattice beam are introduced in this paper and the results are satisfactory.

Key words: Gravity Bridge Abutment, Tilted Wingwall, Cracked Surface, Bore Holes, Prestressed Ground Anchors