High-strength rock splitting method and device based on static and dynamic alternating coupling

Abstract

The invention discloses a high-strength rock splitting method and device based on static and dynamic alternating coupling. The method comprises the following steps: measuring the position parameter and the dimension parameter of a high-strength rock; determining at least one static force rock breaking area; enabling a dynamic force rock breaking area to be adjacent to the static force rock breaking area to cause the dynamic force rock breaking area and the static force rock breaking area to be alternate; placing a plurality of static force rock breaking hole sites in the static force rock breaking area; on the basis of the static force rock breaking hole sites, punching to form static force rock breaking holes; placing a plurality of dynamic force rock breaking hole sites in the dynamic force rock breaking area; on the basis of the dynamic force rock breaking hole sites, punching to form dynamic rock breaking holes; filling the static force rock breaking holes to close the holes with apreset quantity of static disintegrating agent; enabling the static disintegrating agent to fully react to split the static force rock breaking area; inserting a single-pole rock breaking column intothe dynamic force rock breaking hole to enable a rock breaking pole axis to face the static force rock breaking area; pushing the rock breaking pole axis by hydraulic pressure to split the dynamic force rock breaking area until high-strength rock is completely split.

Description

technical field [0001] The invention relates to the technical field of rock non-explosive fracturing, in particular to a high-strength rock splitting method and a splitting device based on static-dynamic alternating coupling. Background technique [0002] At present, blasting is still the most economical and quickest way to break rocks. However, during the blasting process, harmful effects such as blasting vibration, blasting flying stones, and toxic gases may occur. equipment is affected. In recent years, with the strengthening of people's awareness of self-protection and environmental protection, people pay more and more attention to the hazards of blasting, especially when the blasting area is very close to buildings (structures). For disputes caused by blasting, some construction units do not use conventional blasting methods, but tend to apply non-blasting excavation rock breaking technology. These requirements have also prompted people to conduct in-depth research on...

AI Technical Summary

Problems solved by technology

[0007] However, for large-volume rock mass, the simple static crushing method requires a large amount of reagents, and the blasting cycle is long, and the effect on hard rock is poor.

Although the carbon dioxide cracker is a non-explosive method, it will still generate shock waves during the implementation process and affect the surrounding rock mass. It cannot be used in areas with strict requirements for formation disturbance.

However, the above-mentioned non-explosive method has low crushing efficiency and can split rocks whose strength is lower than 50MPa, and there is still a lack of better construction methods for ultra-high-strength rocks whose strength exceeds 100MPa.

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