Control technology for preventing damage caused by blasting of rolling stones

Abstract

The invention discloses a control technology for preventing damage caused by the blasting of rolling stones. A reserved stone ridge (3) is reserved on a side slope adjacent to the blasting boundary area of a blasting mining area (2); a row of drill holes are dug on a slope rock (1) which is certain distance away from the downhill direction of the reserved stone ridge (3); rigid pillars (4) are placed into the drill holes one by one and the embedded part is fixed by pouring concrete; a stone protective net (5) is fixed on the rigid pillars (4) by steel wire; one end of a fixing anchor rope (6) is connected with the rigid pillars (4), while the other end is fixed in the slope rock (1) by a short anchor rod (7); the blasting mining area (2) adopts a loose micro differential controlled blasting technology; hydraulic breaking, knocking and hammering are performed close to the reserved stone ridge (3). The control technology has the advantages that the reserved stone ridge (3) and the stone protective net (5) play a double protection role to enhance the protection effect for the blasting of rolling stones, so that the slope rolling stone can be stopped safely and effectively, and accidents caused by the blasting of rolling stone are avoided.

Description

technical field [0001] The invention relates to a control technology for intercepting and blocking blasting rolling rocks, which is especially suitable for intercepting and protecting blasting rolling rocks during open-pit steep slope blasting construction, and can be widely used in engineering blasting in open-pit mines and other non-mine fields. Background technique [0002] With the rapid development of our country's economic construction, some open-pit mines in our country are gradually moving towards the edge of villages and towns, making the mine blasting environment more and more complicated, and the risk of blasting hazards is increasing, which directly affects the living and working of the people around the mine. Steep slope open-pit mines Blasting and rolling stones are a major risk factor when mining with help. If it cannot be effectively controlled, it will easily lead to blasting safety accidents, threatening the lives and property safety of people and enterprise...

AI Technical Summary

Problems solved by technology

However, the above measures are only suitable for earthwork controlled blasting beside the existing railway line, and are not suitable for blasting on steep slopes in the open air.

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