杨永琦，金乾坤，杨仁树，张奇，高全臣，刘绍发，宋浩，贾云峰
Yang Yongqi;Jin Qiankun;Yang Renshu;Zhang Qi;Gao Quanchen(Beijing Graduate School, China University of Mining and Techiiology)Liu Shaofa; Song Hao; Jla Yunfeng(Datong Mining Bureau)

• 1:中国矿业大学北京研究生部，大同矿务局

摘要(Abstract)：

采用光电量测技术，在实验室模型试验研究基础上，测定和分析了定向断裂爆破炮孔周围应力场特征，对光面爆破炮孔应力场作了分析对比，提出了相邻炮孔贯穿机理；优选了较为实用有效的定向断裂爆破方法，证实了应用于巷道生产的可行性。经大同矿务局马脊梁矿运输大巷４３个正规作业循环实践表明：在ｆ＝６～８的砂岩中掘进断面１２．３９ｍ￣２的巷道时，在现有气腿式凿岩机、耙斗式装岩机和矿车运输条件下，采用定向断裂爆破新工艺、三角复式掏槽、中深孔爆破，可以取得良好的爆破效果。周边眼痕率提高到９６％，不平整度小于１００ｍｍ，炮眼利用率达９８％，彻底解决了目前光面爆破难以达到质量指标这一问题。这一新工艺的实施，对改进光面爆破技术、提高岩巷施工速度提供了新途径。
Based on lab study of model tests, stress field characteristics around the boreholes of dlrectioval fracture blasting have been measured and analyzed using photoelectric measuring techrjiques. The penetrating me-chanism of adacent boreholes has been presented with conmparatively praticaland effective directional fracture blasting method optimized and the feasibili-ty of drift working confirmed. Practice of 43 regular operation cycles in atransportation drift at Maiiliang Mine of Datong Mining Bureau shows thatin the sandstone( f=6～8 ) drift(driving section 12.39m￣2)using the new tech-nology of directional fracture blasting triangular compound cutting and me-dium-length bole blasting can give good blasting effect under the conditionof tbe existing air-leg rock drills, scraper rock loaders and mine-car trans-portation. The circumferential hole mark ratio comes to 96%and the irregu-larity is less than 100mm, borehole utilization ratio reaching 98%. Difficul-ties with quality index for smooth blasting are solved thorouglily. Implemn-tati0n of the new technology opens up broad prospects for improving smoothblasting techniqtie and raising the construction speed of rock drifts.

关键词(KeyWords)： 岩巷定向断裂爆破，炮孔应力场，周边控制爆破
Rock drift directional fracture blasting stress field around boreholes Cirumferential controlled blasting

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金,煤炭科学基金资助项目

作者(Authors): 杨永琦，金乾坤，杨仁树，张奇，高全臣，刘绍发，宋浩，贾云峰
Yang Yongqi;Jin Qiankun;Yang Renshu;Zhang Qi;Gao Quanchen(Beijing Graduate School, China University of Mining and Techiiology)Liu Shaofa; Song Hao; Jla Yunfeng(Datong Mining Bureau)

参考文献(References)：

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