

Similarly, various studies reported the problems associated with the traffic induced vibration. DIN 4150 (1999) recommended the tolerance limits of vehicle induced vibration for safeguarding the structures and human beings. Miller and Pursey (1955) reported the distribution of total induced energy as 67% Rayleigh waves, 26% shear waves, and 7% compression waves. As a result, the body waves attenuate earlier than the surface waves. In an elastic half space, surface waves are exclusively propagate along the surface, and body waves propagate in the form of spherical wave front in all directions. The vibration energy emanated from the traffic is transmitted through the ground in the form of surface and body waves ( Woods, 1968 Ujjawal et al., 2019). In overall, the amplitude response predicted from the numerical and analytical studies were found to be in good agreement with the experimental results. Whereas, mass spring dashpot analogy was followed for the analytical evaluation. The geocell was modeled according to its honeycomb shape to acquire the accurate response of geocell reinforced section. FLAC3D was used for performing the numerical investigation. frequency response of reinforced soil sections. Further, analytical and numerical approaches were used to predict the displacement amplitude vs. The improvement in elasticity of the subgrade was observed maximum when the geocell was placed at a depth of 0.1 B from the ground surface. The vibration mitigation efficacy of geocell was improved significantly at the shallow depth of placement of geocell mattress. The inclusion of geocell was found effective in reducing the induced vibration based on the experimental results. The effect of depth of placement of geocell on the mitigation of vibration parameters was studied. The displacement amplitude and peak particle velocity were measured to understand the vibration mitigation efficacy of geocell. The vibration caused by the vehicular movement was simulated over the unreinforced and geocell reinforced sections using a mechanical oscillator. This paper describes the potential use of geocell reinforcement in mitigating the traffic induced vibration. Department of Civil and Environmental Engineering, Indian Institute of Technology Patna, Patna, India.Amarnath Hegde * and Hasthi Venkateswarlu
