Analysis Of Slip Resistance And Noise Characteristics Of Cement Concrete Pavement Of Road Tunnel

The concrete pavement of road tunnel is mostly constructed by cement concrete pavement under the influence of climate and construction conditions.The interior environment of the tunnel is relatively closed.Pumping noise and aerodynamic noise generated between tire and road surface during vehicle driving propagate in the form of vibration wave in the tunnel.After multiple reflection,resonance and superposition,the noise propagates in the long tunnel in a form close to the horn effect,resulting in the noise level in the tunnel is much higher than that in the general section.Psychoacoustics research shows that drivers are prone to fatigue in the environment with high noise level for a long time,which will have a negative impact on the driver's psychological and physical health.This paper systematically investigates and analyses the anti-sliding and noise reduction functions of common road tunnel cement concrete pavement.Through the analysis of the characteristics of anti-sliding and road noise of tunnel concrete pavement,this paper mainly discusses the anti-sliding and noise reduction functions of tunnel concrete pavement.Through friction test and anti-sliding characteristic test combined with related methods,the anti-sliding construction level is studied.By establishing the finite element model of Abaqus finite element anti-skid performance,the anti-skid performance of tunnel cement concrete pavement is analyzed when different groove forms and groove spacing are adopted.The influence of contact conditions between tires and pavement on anti-skid performance is analyzed,which provides theoretical reference for texture Optimization of tunnel grooved cement concrete test section.The noise characteristics of road tunnel concrete pavement with different anti-sliding textures are compared and studied.The noise characteristics of road tunnel concrete pavement,such as A-weighted sound pressure level and 1/3 times frequency spectrum,are quantitatively analyzed by using the on-board sound intensity method.The noise characteristics of pavement are tested,and the relationship between the texture of tunnel concrete pavement and noise is analyzed,which has an important guiding role for engineering practice.It provides theoretical basis and technical reference for realizing the goal of "safety,anti-sliding and low noise" of concrete pavement of road tunnel in China.