Study On The Key Techniques For Rebuilding Of Qing-lian Old Cement Concrete Pavement

Overlaying new concrete slab is an important means to rebuild old cement concrete pavement. For special design specification is not still introduced, the relating criterion has not satisfied the need of old pavement investigation and the analysis on typical overlaying sturcture was not perfect. So the significant extent difficult is exist in old concrete pavement overlaying and it is necessary to research the technology of overlaying concrete surface on old cement pavement systemicly.On the investigation and research on a great deal technology of rebuilding old concrete pavement, the means of investigation old pavement are researched systemicly relying on the project example. The field measurement data is analyzed in-depthly using the means which combine nondestructive test and destructive test. The means of applying nondestructive test on old pavement investigation is perfected. The applied method of evaluate crashing result of old concrete pavement is suggested on the relating research in construction insu. Using the finite elment analysis method and different influencing factor considered, the typical structure is plotted in detail and the influencing rules is gained. The influence of longitudinal seam and transverse seam are considered in analytical process so the actual mechanics case is more approched. The analytic result have more important guidance signification to the construction practice.