Design of Bridge Reconstruction Scheme in Narrow Section
In order to finish the bridge reconstruction work in the limited site and solve the problem of the influence of the narrow sec-tion on the bridge reconstruction effect and investment,the bridge reconstruction scheme in the narrow section is put forward under the consideration of the surrounding environment.A bridge project in eastern Jinan was taken as the research object,and the original bridge was demolished by a small wind drill combined with manual excavation.The reconstruction of bridge in narrow section is realized by excavating backfill and preloading foundation,construction of bearing and grouting,setting up bored pile and planting steel bar.Through the analysis of the actual measurement,the conclusion is drawn that the average deformation of the bridge reconstruction result is al-ways lower than the preset value through the implementation of the bridge reconstruction and design plan in the narrow area,the dura-tion and cost of the reconstruction project are 16.7 months and 326,000 yuan respectively.
narrow sectionbridge constructionreconstruction plan
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