STUDY ON THE STANDARD OF NON-EVEN SETTLEMENT FOR DRIVING COMFORTABLENESS OF EXPRESSWAY

摘要

There is no uniform standard in the settlement of highway construction process. The driving comfort will not be affected if non- even settlement is controlled within a certain range. In order to achieve this requirement the formation of 3-meter straightedge lar the slope caused by non- even settlement is limited to 0.47% when driving at the speed of 110km / h, road excitation wavelength is 60m, and regard this index as the non- even settlement standard for expressway. The restriction of non- even settlement is calculated and is 14.1cm according to the model. Examined by the project, this model and standard can be used for guiding the newly-built highway to subside stability controlling.