STRUCTURE FOR UNDERWATER BLASTING AND BLASTING METHOD THEREWITH

摘要

PURPOSE: An underwater blasting structure and an underwater blasting method using the same are provided to accurately and safely load explosives in holes bored on bedrocks and to prevent the explosives from being remained due to dead pressure. CONSTITUTION: An underwater blasting structure comprises a pipe body (10), upper and lower caps (20A,20B), a loading part (30), and a tamping part (40). The top and the bottom of the pipe body are opened. The upper and lower caps seal the pipe body. The loading part is inserted in the lower part of the pipe body and receives explosives. The tamping part is loaded in the upper part of the pipe body to cover the loading part. Multiple leaf springs (S) are installed on the outer circumference of the lower cap. A sleeve is installed in the outside of the leaf springs.