Mechanical expansion type hole-sealing and grouting integrated large-aperture static rock breaking device and application method thereof

Abstract

The invention discloses a mechanical expansion type hole-sealing and grouting integrated large-aperture static rock breaking device and an application method thereof. The static rock breaking device comprises a hole-sealing plug and a one-way grouting valve. The using method of the static rock breaking device comprises the following steps of (1) constructing a drilling hole for an object to be blasted according to construction design requirements; (2) placing the static rock breaking device into a drilling hole, and screwing an adjusting valve to enable an expansion body to open a rubber pipeuntil the static rock breaking device cannot be pulled out of the drilling hole, and then stopping screwing the adjusting valve; (3) mixing a static crushing agent with water according to a certain weight ratio, stirring the mixture into slurry, and injecting high-pressure slurry into the drilling hole through a first through hole; (4)after completing the injection of high-pressure slurry in step(3), and injecting high-pressure warm water with a certain temperature into the drilling hole through the first through hole so as to accelerate the reaction of a static crushing agent; (5) and aftercompleting the blasting of the to-be-blasted object, unscrewing the adjusting valve, and pulling out the static rock breaking device. The mechanical expansion type hole-sealing and grouting integratedlarge-aperture static rock breaking device is safe and reliable, moreover, the static rock breaking device is convenient to be detached and cleaned, and can be repeatedly used.

Description

technical field [0001] The invention belongs to the technical field of static blasting, and in particular relates to a large-aperture static rock-breaking device integrated with mechanical expansion type hole sealing and grouting and a use method thereof. Background technique [0002] The crushing agent used in static blasting is mainly silent crushing agent, which is also called static crushing agent. The main component of the blasting agent is an inorganic compound calcined at high temperature with calcium oxide as the main body, mixed with an appropriate amount of admixture and ground together. Non-explosive crushing powder material with high expansion performance. Static blasting does not produce noise, vibration, dust and other public hazards, and can crush and disintegrate rocks or concrete structures calmly and safely. It has been widely used in the demolition of urban buildings and structures, mining of precious stones, and tunneling without blasting. [0003] The e...

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Problems solved by technology

[0003] The expansion process of the static breaking agent is a complex chemical reaction process. If a certain link is not well controlled, the phenomenon of spray holes will easily occur. blindness; therefore, the requirements for the use of static breaking agents are relatively high, and the potential safety hazards in the operation process are relatively large. Due to the current research on the sealing process of static breaking agents is relatively small, and there is a lack of special sealing devices, during the operation of static breaking agents There is almost no sealing in the hole, even if the hole is sealed, it is randomly sealed with general items, which has a great disadvantage to the safe and efficient use of the static breaking agent, and there are technical problems such as large safety hazards.

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