Construction method for treating vehicle jump at bridge head in highway
A bridge head jumping and construction method technology, which is applied in bridge engineering and road engineering fields, can solve problems such as the inability to solve the compactness of the abutment back, the limitation of the use of large compactors, and the narrow construction space of the abutment back, etc., to reduce the settlement difference , low cost, stable foundation effect
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[0022] See figure 1 , The construction method of the present invention for treating road bridge head bumping includes roadbed treatment, base course treatment and pavement construction, and specifically includes the following steps.
[0023] Step A. Use plain soil or light-weight materials to fill the back of the platform in layers. The compaction thickness of each layer should not exceed 20cm, and the compactness is greater than 95% at the best moisture content, and the filling height is 2~3m and the subgrade elevation The surface is tamped with a strong tamping machine to form a stable subgrade 70 on the back of the platform. The light-weight material refers to a filler with a low density. Due to the low density of the filler, the settlement caused by the weight of the bridge head is small, which can greatly reduce the pressure applied to the foundation, thereby helping to solve the technical problem of the bridge head jumping.
[0024] The compactness of the compaction is greate...
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