Underwater energy-gathered blasting device and blasting method

Abstract

The invention relates to an underwater energy-gathered blasting device. The invention provides the underwater energy-gathered blasting device and a blasting method. The underwater energy-gathered blasting device and the blasting method are used for improving a use ratio of blasting energy in underwater blasting, and meanwhile preventing an energy-gathered dynamite package from drifting or toppling under the action of water flow. The technical scheme includes that the underwater energy-gathered blasting device is characterized by comprising an energy-gathered dynamite package structure body and a support which is connected with the energy-gathered dynamite package structure body in a rigid mode, and is used for improving stability of a whole structure, wherein the energy-gathered dynamite package structure body comprises a cylindrical side wall, a top plate arranged at the top end of the side wall, and a sealed base arranged at the bottom end of the side wall, a semi-spherical dynamite type cover is arranged at the bottom of a cavity which is defined by the side wall, the top plate and the base, a semispherical energy-gathered cavity is formed between the semi-spherical dynamite type cover and the base, dynamite is filled in the cavity and the energy-gathered cavity, and meanwhile a detonator hole is formed in the top plate. The underwater energy-gathered blasting device and the blasting method are applicable to removal of obstacles such as hard reefs in a complicated underwater environment of a sea.

Description

technical field [0001] The invention relates to an underwater energy-gathering blasting device and a blasting method, which are mainly suitable for removing hard reefs and other obstacles in the complex underwater environment of the ocean. Background technique [0002] The ocean is an important base for human survival and sustainable social development, and the development of the ocean has far-reaching strategic significance. Due to the promotion of marine economic needs, marine engineering construction is becoming more and more frequent. my country has a long coastline, complex geological conditions, and harsh underwater operating environment. The existence of obstacles such as large underwater reefs and underwater shipwrecks will bring difficulties to our engineering construction. In the early stage of project construction, effective measures need to be taken to remove these underwater obstacles, and underwater blasting technology is an effective technical means. Existin...

AI Technical Summary

Problems solved by technology

Existing engineering practices have shown that: (1) The strength of underwater reefs is often high. Using traditional underwater exposed blasting technology requires a large amount of explosives and limited blasting depth. The blasting efficiency is low and has a great impact on the surrounding marine environment.

(2) The characteristics of the marine environment are complex, and the explosive package is easy to drift and dump under the action of water flow, and the inaccurate positioning of the explosive package will often cause serious safety hazards

Therefore, the applicability of traditional underwater blasting technology is limited to a certain extent. It is necessary to adopt special blasting technologies such as energy-gathering blasting, improve and optimize the design of energy-gathering blasting devices, make full use of the explosive power of explosives, and concentrate the explosion energy to the greatest extent. Remove obstacles while reducing the impact on the marine environment to better adapt to blasting operations in complex marine environments

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