5 results about "Underwater blast" patented technology

The application discloses a mapping method for evaluating human body impact damage degree based on animal injury condition equivalence, and belongs to the technical field of impact damage biomechanics, and comprises the following steps: constructing a whole-body high-fidelity biomechanical model of different species, applying underwater explosion vibration impact loads with different intensities to the model to obtain damage modes; statistically classifying the damage modes, integrating the damage modes to form a damage database, quantitatively calculating the damage in the damage database by using a new damage severity scoring system, selecting multiple physical factors affecting the biological damage degree, screening out two key physical quantities with the highest contribution rate to define scaling coefficients, and drawing a mapping atlas for evaluating the human body impact damage degree based on animal injury condition equivalence; the mapping atlas of the injury condition across species is established by constructing the multi-species biomechanical model and combining principal component analysis, and the accurate evaluation from animal experimental data to the human body damage degree under the underwater explosion vibration impact environment is systematically realized.

The application provides a controllable underwater explosion ice-breaking bomb, and belongs to the technical field of ocean and inland ice-breaking. The application solves the problems that the existing ice-breaking device cannot independently complete the ice-breaking task and the operation stability is difficult to guarantee. The controllable underwater explosion ice-breaking bomb comprises a shell, a composite cable, a pay-off device, a control module, floating material and an operation part. The bottom of the shell is provided with an opening. A rack is arranged on the outer side wall of the shell. The pay-off device, the control module, the floating material and the operation part are arranged in the shell. The pay-off device is arranged at the top of the inner cavity of the shell. The composite cable is arranged in the pay-off device. A first mounting plate is arranged below the pay-off device. The control module is arranged on the first mounting plate. The floating material is arranged at the bottom of the first mounting plate. A second mounting plate is arranged below the floating material. The operation part is arranged below the second mounting plate. A plurality of electromagnetic locks are arranged at the bottom of the second mounting plate. The controllable underwater explosion ice-breaking bomb is mainly used for ocean and inland ice-breaking.

The application provides a self-expanding bubble curtain damping device and damping method for underwater blasting, and relates to the technical field of underwater borehole blasting. The damping device is installed in a damping hole drilled in the water bottom, and releases high-pressure gas during operation. The cavity effect of the damping hole can preliminarily reflect and attenuate the shock wave. The device generates a conical bubble curtain in the hole and the water area outside the hole through the gas release assembly and the diffusion cover. The diffusion cover can expand the range of bubble generation. The conical bubble curtains generated by multiple parallel devices overlap with each other at the edges during the rising process, forming a bubble wall with wide coverage, continuity and density. The bubble wall can greatly enhance the absorption, reflection and energy dissipation capacity of the underwater blasting shock wave, providing more sufficient protection for underwater facilities.

This application relates to the field of underwater environmental protection, and in particular to a method for underwater blasting environmental protection. It includes sequentially deploying a bubble curtain and an antifouling curtain around a predetermined blasting zone; placing a package containing a water treatment flocculant within the blasting zone or in the water immediately above it; linking the release trigger condition to the blasting operation; and implementing underwater blasting to trigger the release of the flocculant, allowing it to mix with suspended sediment. The bubble curtain weakens the shock wave and, in conjunction with the antifouling curtain, hinders sediment diffusion, while the flocculant promotes the settling of suspended solids. The application also describes the flocculant composition, packaging material and placement method, the formation and fixing method of the bubble curtain and antifouling curtain, their placement distance, and the steps of monitoring water turbidity and replenishing flocculant. This application achieves the technical effects of weakening underwater shock waves, hindering the diffusion of suspended sediment, accelerating the settling of fine suspended solids, and realizing rapid water purification after blasting.

The utility model discloses an underwater liquid oxygen gas explosion induced fracturing device of high efficiency and simple and convenient belongs to underwater blasting technical field, including the fracturing device pipe body of the hot melt material, and the upper pipe cap and lower pipe cap of same material are hot melt welded with fracturing device pipe body two ends respectively, and the pipe wall of upper pipe cap is equipped with the opening, and the hole wall of opening is hot melt welded with the fracturing device exhaust pipe of same material. The fracturing device pipe body of the utility model adopts the hot melt material to make, not only low temperature performance is good, can ensure the effective volume in fracturing device pipe body, can also improve the security of blasting operation, all components adopt same material to make, and the body connecting mode of hot melt welding is used between all components, and welding is firm, and the integrity and the sealing property are good, and the fracturing device material basically has no toxicity, and the harmful effect to person and environment is all smaller, the fracturing device structure of the utility model is simple, and the material source is extensive, and is easy to process and make, and the cost is lower, and is favorable to the application of underwater gas explosion operation large -scale engineering.