矿业工程
礦業工程
광업공정
MINING ENGINEERING
2015年
4期
57-59
,共3页
岩巷%预掏槽%斜眼深孔楔形掏槽%空气间隔装药%光爆
巖巷%預掏槽%斜眼深孔楔形掏槽%空氣間隔裝藥%光爆
암항%예도조%사안심공설형도조%공기간격장약%광폭
stone drift%pre cutting%inclined deep hole wedge-shape cutting%air-separated charging%light explosion
为提高岩石巷道的爆破效果和掘进速度，针对岩巷掘进中爆破自由面少，提出预掏槽的概念，阐述了预掏槽的破岩机理，对岩巷预掏槽做了可行性分析，以斜眼深孔楔形掏槽形式对预掏槽进行了设计。
為提高巖石巷道的爆破效果和掘進速度，針對巖巷掘進中爆破自由麵少，提齣預掏槽的概唸，闡述瞭預掏槽的破巖機理，對巖巷預掏槽做瞭可行性分析，以斜眼深孔楔形掏槽形式對預掏槽進行瞭設計。
위제고암석항도적폭파효과화굴진속도，침대암항굴진중폭파자유면소，제출예도조적개념，천술료예도조적파암궤리，대암항예도조주료가행성분석，이사안심공설형도조형식대예도조진행료설계。
In order to improve the exploration effect and advance rate of stone drifts,focusing on the concept that the free face of explosion in stone drifts advance is little,the paper puts forward the pre cutting concept,describes the rock breaking mechanism of pre cutting,and makes feasibility analysis of pre cutting of stone drifts. It also design for the inclined deep hoe wedge-shape cutting,and conducts ten times cycling tests for light explosion in stone drifts.
