Test of pressure load on surface of typical concrete structure caused by underwater explosion

Abstract

To study the pressure load of the underwater explosion on the typical surface of a concrete structure, composition B were used to explode in water, and the shock wave pressure on the front, side, top and back of the concrete pile was measured. The theoretical peak pressure of shock wave at the same distance in infinite water was calculated. The results show that the peak pressure of reflected shock wave at the front of concrete pile is the largest, which is nearly twice the theoretical value of the peak pressure of reflected shock wave at the same distance in infinite water. When the shock wave continues to propagate on the side and top surface, the peak pressure on the side is higher than that on the top surface. The peak pressure of the shock wave diffused from the side and top surfaces on the back is smaller than that of the other surfaces.