| 摘要 |
The present invention relates to a noise reduction material, which is made from a thread strengthened by twisting fibers, and a pile driving structure using the noise reduction material. The noise reduction material according to the present invention is provided to be installed in between the noise reduction material, which is made by twisting fibers, and a cap, thereby minimizing loss of striking energy when a pile-driving work is performed; to absorb the predetermined amount of impact of a pile-driving hammer, thereby solving damage to a nailhead; to attenuate vibration, thereby significantly reducing striking sound and settling a civil complaint caused by generation of noises; to contain only fibers, thereby facilitating production and remarkably reducing production costs; and to be composed of a natural material, thereby facilitating waste disposal after use. |
