This paper reviews the requirements of the sound - absorbing block for the maintenance of the concrete track and suggests ways to solve it. It is applied to the design and production by preparing the shape improvement plan so that the cracks of the road can be observed. In order to secure safety by tunnel lift in the tunnel, the lift generated by computational fluid dynamics analysis is examined to confirm the safety of the sound absorption block.

Abstract
 1. 서 론
 2. 본 문
  2.1 콘크리트 도상의 균열 양상 및 관측 방안
  2.2 터널 내 발생 양력 검토 및 안전성 확보 방안
 3. 결 론
 참고문헌

• 손동기((주)지이티-피씨 푸른환경기술연구소) | Son, Dong Ki
• 심규철((주)지이티-피씨 푸른환경기술연구소) | Shim, Kyu Cheol