On the cable Tunnel works. Cautious blasting works were so effective and carried out. The vibration record were under 0.4cm / sec and blasting noise are under 75dB Which it was measured at the ground of Tailor House. As a result cautious blasting works under above allowable value, are not Influenced the structure of house and living. On the architechtural survey, there were some hair crack on the wall but this was not crack from recently blasting work.