束状深孔拉槽爆破参数优化研究

金属矿山 ›› 2011, Vol. 40 ›› Issue (05): 4-8+11.

束状深孔拉槽爆破参数优化研究

刘优平¹，张鸿¹，黄刚海²

1.南昌工程学院；2.中南大学

出版日期:2011-05-12 发布日期:2011-05-12
基金资助:
国家自然科学基金项目(编号：50969007)，江西省教育厅青年科学基金项目(编号：GJJ10272)。

Research of Blasting Parameter Optimization for Bunch-deep-holes Cutting

Liu Youping¹，Zhang Hong¹，Huang Ganghai²

1.Nanchang Institute of Technology；2.Central South University

Online:2011-05-12 Published:2011-05-12

摘要/Abstract

摘要： 凡口铅锌矿间柱采场受过去采矿扰动影响，矿岩破碎，掘进切割天井困难。借鉴束状孔爆破的原理，采用束状深孔对间柱采场进行拉槽，取代天井为后续爆破提供自由面和补偿空间。采用ANSYS/LS-DYNA对拉槽孔爆炸应力场进行分析，确定合理拉槽爆破参数。研究结果取得良好现场应用效果。采矿工程|束状孔拉槽|ANSYS/LS-DYNA|装药结构

Abstract: Due to the disturbance by the former mining，it was difficult to crush rocks and cut the shafts for pillars' mining in Fankou Lead-zinc mine.Referring to the principle of bunch-holes blasting，the bunch-deep-hole technique was adopted to cut the pillar stope and to provide free surfaces and compensated space for later blasting instead of the shaft.Then，ANSYS/LS-DYNA was used to analyze the blast stress field of cutting holes to determine the parameters for cutting blasting.This research got well result in practical application.

Key words: Mining engineering, Bunch-holes cutting, ANSYS/LS-DYNA, Charging structure

刘优平, 张鸿, 黄刚海. 束状深孔拉槽爆破参数优化研究[J]. 金属矿山, 2011, 40(05): 4-8+11.

LIU You-Ping, ZHANG Hong, HUANG Gang-Hai. Research of Blasting Parameter Optimization for Bunch-deep-holes Cutting[J]. Metal Mine, 2011, 40(05): 4-8+11.

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