Full rock gangway small-section roadway blasting hole arrangement manner and blasting hole construction method

• Main Authors: CHEN ZAIBING, HU YUNJIANG, LIU DEBING, QIN LE, WANG JIAN, CHEN ZHIKUN, ZHOU FEI, XU GANG, LEI HONGBO, HUANG SONG, FAN YUANCHANG, ZHANG FENGQIN
• Format: Patent
• Language: Chinese; English
• Published: 27.03.2020
• Subjects: AMMUNITION; BLASTING; EARTH DRILLING; FIXED CONSTRUCTIONS; GALLERIES; HEATING; LARGE UNDERGROUND CHAMBERS; LIGHTING; MECHANICAL ENGINEERING; MINING; SHAFTS; TUNNELS; WEAPONS

The invention belongs to the technical field of mining excavation, and provides a full rock gangway small-section roadway blasting hole arrangement manner. The full rock gangway small-section roadwayblasting hole arrangement manner includes 14 crushing holes, 10 slotted holes, 15 peripheral holes, 5...