Concrete beforehand pore-forming static breaking technology

Abstract

The invention provides a concrete beforehand pore-forming static breaking technology. A plurality of containers with a certain sizes, shapes and amounts are embedded in a concrete member before the concrete is cast, a plurality of orifices are arranged above the containers, the inner diameters of the orifices are less than the inner diameters of the containers, and the orifices are extended to the edge of the concrete member. When the concrete member needs to be disassembled, the expanding agent is filled into the containers along with the orifices, the expanding agent is chemically reacted in the containers to generate the expansibility, the concrete member is expanded to be broken, and the whole process is free of noise, vibration and slungshots. Compared with the normal pore-forming type static breaking technology, the expansibility is larger, the expanding agent can be effectively avoided to be sprayed out of the orifices, and the construction is safe and environment-friendly; and the drilling working capacity is eliminated, so that the cost can be reduced, and the disassembly construction period can be shortened, therefore, the technology is suitable for the static breaking of engineering temporary facilities.

Description

[technical field] [0001] The invention relates to a concrete demolition technique, in particular to a concrete pre-hole static crushing technique. [Background technique] [0002] At present, static crushing technology is mainly used in rock mining, and a small part is used in the demolition of engineering projects that have special requirements for the surrounding environment. The main reason why static crushing technology for reinforced concrete structures has not been widely used is that the borehole diameter should not be too large , and is limited by many factors such as component reinforcement and drilling conditions. In fact, the demolition of temporary facilities can completely avoid such constraints. Temporary facilities in the project, such as construction roads, deep foundation pit horizontal support or temporary reinforcement measures for structural repairs, etc., need to be dismantled when the construction progresses to a certain extent. It's blasting with expl...

AI Technical Summary

Problems solved by technology

[0009] In order to overcome the disadvantages of static crushing concrete technology, such as high drilling cost, great influence from the surrounding environment, small expansion force, and easy spray holes to hurt people, the present invention provides a pre-formed hole static crushing technology for the demolition of temporary facilities. Flexible technical hole setting, large expansion force and safe construction, no noise and vibration, can significantly speed up the progress and reduce the cost of concrete crushing

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