Abstract:There is still not any specific experiment and theory to explain that impact roller vibration has effected on the buried optical fiber cables. And this has restricted applying impact compaction technology to the highway section with buried optical fiber cable. In order to solve this issue, based on practical project parameter, according to the relative hypothesis and simulating the multi-cycle loading mode of impact compaction construction, a 3-D finite element model was developed. The vibration effects on different optical fiber cable caused by impact compaction construction were analyzed with the Ansys software, and the results show that impact compaction construction has little effect on the optical fiber cable in 60cm buried depth. The impact of the construction on the cable was larger when the location of the cable gradually nears the direction of the pavement. The compressive stress of Z direction and the tensile stress of X direction came to the allowed values respectively when the cable buried up to 0.1 meter and 0.14 meter of the bottom of the subgrade, then the cable was destroyed