Filling body low-disturbance blasting method under large-diameter deep hole two-step recovery

Filling body low-disturbance blasting method under large-diameter deep hole two-step recovery

The invention discloses a filling body low-disturbance blasting method under large-diameter deep hole two-step recovery, and relates to the technical field of mine blasting. The filling body low-disturbance blasting method under large-diameter deep hole two-step stoping comprises the following speci...

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Hauptverfasser: LAI ZHONGSHAN, TAO LEI, WANG JICHENG, XI TINGTANG, ZHANG QIANG, WANG YUFU, ZHOU LIN, LIU ZHIYONG, TIAN QIZHI, LI WANGBING, XIE BINGXIANG, WANG NANNAN, WEN ZHENGFA
Format: Patent
Sprache:chi ; eng
Schlagworte:
AMMUNITION
BLASTING
HEATING
LIGHTING
MECHANICAL ENGINEERING
WEAPONS
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creator LAI ZHONGSHAN
TAO LEI
WANG JICHENG
XI TINGTANG
ZHANG QIANG
WANG YUFU
ZHOU LIN
LIU ZHIYONG
TIAN QIZHI
LI WANGBING
XIE BINGXIANG
WANG NANNAN
WEN ZHENGFA
description The invention discloses a filling body low-disturbance blasting method under large-diameter deep hole two-step recovery, and relates to the technical field of mine blasting. The filling body low-disturbance blasting method under large-diameter deep hole two-step stoping comprises the following specific operation steps: step 1, determining an actual boundary: after stoping in the step 1 is finished, scanning a goaf by utilizing a laser scanning technology, and establishing a goaf three-dimensional model so as to determine the boundaries of ore bodies on two sides; according to the filling body low-disturbance blasting method under large-diameter deep hole two-step recovery, the stress wave propagation range is improved in the mode that the main blasting holes and the buffer holes are arranged in the vertical direction; the intensity of blasting stress waves is reduced by reducing the charge density of the buffer holes; and meanwhile, through the mode of hole-by-hole detonation of the main blasting holes and mi
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subjects AMMUNITION
BLASTING
HEATING
LIGHTING
MECHANICAL ENGINEERING
WEAPONS
title Filling body low-disturbance blasting method under large-diameter deep hole two-step recovery
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