Deep hole blasting construction method for high slope under complicated environment

Abstract

The invention discloses a construction method for deep hole blasting on a high slope in a complex environment, which comprises the following steps: 1) drafting an overall blasting construction plan, 2) calculating the maximum amount of charge in a section, 3) reasonably determining blasting technical parameters, 4) Drilling, 5) charge and blockage, 6) connection to the detonation network and detonation, 7) blasting effect check and vibration test; adopt "layering in the hole, slight difference inside and outside the hole, multiple sounds in one hole, and charge the air column at intervals" "blasting method, the blasting technical parameters include blasting hole diameter, hole depth, hole spacing, row spacing, explosive unit consumption and single hole charge, the drilling equipment is a self-propelled medium and deep hole drilling rig, and the charge structure is an air column spacer medicine. The invention adopts the shock absorption measures of the air column spaced at the bottom of the hole and the uncoupled charge structure to control the blasting vibration, monitors the blasting vibration for each blasting, and optimizes the blasting parameters in time, effectively guiding the complex environment such as adjacent buildings and residential areas. Under blasting construction.

Description

technical field [0001] The invention relates to a construction method for high slope deep hole blasting in a complex environment, and belongs to the technical field of engineering blasting and rock mechanics. Background technique [0002] With the vigorous development of economic construction, my country's infrastructure construction is changing with each passing day. The number of construction projects such as industrial and civil buildings, mining and water conservancy and hydropower projects is increasing. High slope projects in my country's complex environment, especially rocky high slope projects, are facing a lot of opportunities and challenges. [0003] Blasting technology has been widely used in slope engineering such as industrial and civil construction, open-pit mining and water conservancy and hydropower engineering. The complex blasting environment has become more and more an obstacle in engineering construction. The blasting of high slopes in a complex environm...

AI Technical Summary

Problems solved by technology

The existing construction technology of deep hole blasting on high slopes in complex environments usually opposes the harmful control of secondary disasters, and the control of blasting vibration and blasting scatter is insufficient, which is likely to cause great economic losses and bring adverse negative effects

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