Abstract
Large differential settlement (e.g., >30 mm) of bridge approaching embankments behind abutments in service has caused difficult travel for vehicles. The current techniques to reduce large settlements such as pavement refilled are still ineffective and less sustainable. Jet Grouting has high potential application to treat large settlements but has limit applications. This paper attempted applying the Jet Grouting to reinforce bridge approaching embankments in Vietnam. The Tam Bang and Vam Dinh bridges on the DT852 highway in Dong Thap province were investigated and reinforced using the Jet Grouting technology. The primary consolidation settlement analysis indicates that (1) the Jet Grouting technology has full capacity of mitigating large differential settlements of the Tam Bang and Vam Dinh bridges, (2) The proposed solutions can gain public trust, (3) Jet Grouting technology has high potential applications to reinforce differential settlement of bridge abutments in the Mekong Delta.
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