Large-aperture static breaking agent oriented rock breakage and spraying hole prevention integrated device and construction method thereof

Abstract

The invention discloses a large-aperture static breaking agent oriented rock breakage and spraying hole prevention integrated device and a construction method thereof. The device comprises a sleeve, alower blockage head, an upper blockage head and a water injecting pipe; the lower blockage head is fixedly arranged at the lower part in the sleeve; two oriented breakage gaps are formed in the wallof the sleeve from top to bottom in the axial direction, and are symmetrically arranged about the center line of the sleeve; the upper blockage head is coaxially assembled in an upper port of the sleeve; a static breaking agent filling cavity is formed between the upper blockage head and the lower blockage head in the sleeve; the upper blockage head is provided with a guide hole penetrating up anddown in the center line direction; the water injecting pipe is inserted in the guide hole; and the lower end of the water injecting pipe extends into the static breaking agent filling cavity. The device is simple in structure, convenient to manufacture and install, capable of being recycled and low in construction cost, can achieve such functions as efficient rock breakage by a static breaking agent, oriented rock breakage and spraying hole prevention, and effectively relieves the constraints of the aperture and the construction environment temperature on the rock breaking effect by the static breaking agent.

Description

technical field [0001] The invention belongs to the technical field of civil engineering construction, and in particular relates to an integrated device for large-aperture static breaking agent for directional rock breaking and blowout prevention holes and a construction method thereof. Background technique [0002] Static breaking agent is referred to as static breaking agent, which belongs to chemical and physical rock breaking methods. The crushing method is to drill a hole on the object to be crushed (rock or concrete), and fill the hole with a static crushing agent slurry; as the hydration reaction proceeds, expansion and hardening occur simultaneously, generating expansion pressure, thereby realizing crushing Body cracking and fragmentation. The static crushing method has the advantages of no vibration, no noise, no flying stones, no dust, and no pollution. It is suitable for crushing construction in towns, factory building expansion, building demolition, mining of pr...

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Problems solved by technology

[0003] Studies have shown that the higher the water temperature, the larger the diameter of the drill hole, the greater the expansion pressure generated by the breaking agent, the greatly reducing the breaking time, and the high breaking efficiency, but at the same time it will also bring about the defects of the spray hole.

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