1) long and medium hole drilling and blasting
中深孔凿岩爆破
1.
According to the mining conditions of inclined,broken orebody with medium thickness and lower grade in Nalin Gold Mine, sill-free sublevel caving method and long and medium hole drilling and blasting were applied in research experiment.
针对广西凤山县那林金矿在倾斜、破碎、中厚、低品位的矿体开采中,试验研究采用无底柱分段崩落采矿法,使用中深孔凿岩爆破。
2) mid-deep borehole drilling
中深孔凿岩
1.
According to the actual situation of a Mo mine which will employ multi-stage mining and the occurrence morphology of orebody which is deep and large,the paper introduces sublevel stoping mining method drilled by mid-deep borehole drilling machine and loaded by electric-rake.
针对某钼矿分期开采的实际情况以及矿体的厚大特征,选用中深孔凿岩、电耙出矿的分段凿岩阶段矿房法进行开采,有效地提高了矿块生产能力。
3) Medium-length hole blasting
中深孔爆破
1.
Practice of reducing tight bottom block of medium-length hole blasting
降低中深孔爆破大块根底的实践
2.
In this paper, the application and improvement of medium-length hole blasting in Piaotang mine area are introduced, the main problems of applying medium-length hole blasting in Piaotang mine area are pointed out and analysed, and some measures of improving blasting quality are put forward.
概述了漂塘矿区中深孔爆破的应用与改进,分析指出了漂塘矿区中深孔爆破中存在的主要问题,并提出了提高中深孔爆破质量的有关措施。
3.
The paper analyse the mechanism of hole-bottom detonating and set forth the crushing mechanism of hole-bottom detonating in medium-length hole blasting decrease the production of big block ores.
分析了孔底起爆的作用机理 ,阐述了孔底起爆在上向扇形中深孔爆破中能降低大块产出的破碎机理 ;提出了在工业爆破中具体实施该技术之前应解决的问题 ,介绍了具体的操作办法 ,同时也列举了可能出现问题的注意事项。
4) medium and deep hole blasting
中深孔爆破
1.
The traditional method of hole-location in medium and deep hole blasting were according to engineer′s rough estimation for blasting region landform by eyenaked or with some simple measures, by this mean the parameters were made out and then adjusted in practice.
哈尔乌素项目部采用现代电子测绘技术与爆破技术相结合,提出一种中深孔爆破炮孔精确定位的新方法,很好地解决了这一问题。
2.
The basic theories of layered charging and layered tamping and the influences of explosive specific charge on distribution of explosive rock blocks for medium and deep hole blasting are discussed.
以两个装药层为例阐述中深孔爆破中分层装药分层填塞的基本原理以及炸药单耗对分层装药结构和爆岩块度的影响,并借助爆炸应力波理论和爆生气体膨胀理论分析合理进行分层装药分层填塞对于中深孔控制松动爆破爆炸效果的影响。
5) middle-deep hole blasting
中深孔爆破
1.
Apply "three small" technology and technology of middle-deep hole blasting to realize fast excavation in rock roadway;
应用“三小”技术及中深孔爆破技术实现岩巷快速掘进
6) medium-deep hole blasting
中深孔爆破
1.
After explosive properties and charging explosive structure are changed,for decreasing the big blasting block of medium-deep hole blasting the Houzhuang mine destrict of Jinling iron mine has taken some steps,for example to increase properly density factor value of blasting hole,etc The big block ratio is decreased from 25% to below 10
金岭铁矿侯庄矿区在炸药性能和装药结构发生变化后，为减少中深孔爆破大块，采取了适当加大炮孔密集系数ｍ值，采用孔底起爆加孔内双起爆药包相向同段起爆等措施，大块率由２５％左右降低到１０％以下。
2.
As a case study on slope improvement in a scrap mine,the design of medium-deep hole blasting parameter of network and safety proofreading are mainly presented,and the blasting results are analyzed.
以一具体废弃矿山边坡治理为例,论述了中深孔爆破孔网参数设计、安全技术措施,并对爆破效果进行了分析,说明中深孔爆破技术在废弃矿山边坡治理中可以取得良好效果。
补充资料：泸州使君岩在城南一里深三丈有泉出其左音中
【诗文】：
云间刁斗过边州，沙际丘亭舣客舟。
涨水方忧三峡嶮，短筇犹作两岩游。
蛟龙矫矫拏云起，琴筑泠泠绕榻流。
未死人生谁料得，会来携客试茶瓯。
【注释】：
【注释】：原题：泸州使君岩在城南一里深三丈有泉出其左音中律吕木龙岩相距亦里许黄太史所尝游憩也
【出处】：
云间刁斗过边州，沙际丘亭舣客舟。
涨水方忧三峡嶮，短筇犹作两岩游。
蛟龙矫矫拏云起，琴筑泠泠绕榻流。
未死人生谁料得，会来携客试茶瓯。
【注释】：
【注释】：原题：泸州使君岩在城南一里深三丈有泉出其左音中律吕木龙岩相距亦里许黄太史所尝游憩也
【出处】：
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条