1) toe rock
根底
1.
Some measures of lessening large fragment and toe rock in medium-length hole blasting as well as their effects in Yongping Copper Mine are described.
介绍江西铜业公司永平铜矿针对中深孔爆破采矿中出现大块和根底现象所采取的措施及其效果。
2.
Base on the opencast mine explosive theory research and practice in Gan chong Limestone Mine,the main reasons for toe rock occurring in deep hole bench blasting is checked out,then effective technical measures to eliminate toe rock blasting are proposed,which achieve good results in the application,and can provide reference for the mine blasting design and blasting operation.
通过对露天矿山爆破作用机理的理论探讨和在甘冲石灰石矿的应用实践,指出影响山坡露天矿台阶深孔爆破产生根底的主要原因,并提出有效消除爆破根底的技术措施,在应用中取得了良好的效果,为矿山进行爆破设计和爆破作业提供参考。
2) Bedrock
[英]['bedrɔk] [美]['bɛd'rɑk]
根底
1.
Production practice argues that these steps to improve the quality of the blasting,reducing the rate of bedrock and the bulk,and create stable support for the production the open-pit mine production cycle.
结合鞍钢矿业公司大孤山铁矿的生产实践,对露天矿中深孔爆破中大块和根底产生的原因进行了具体的分析和总结,并针对产生根底大块的具体原因,提出了切实可行的解决方案。
3) toe
[英][təʊ] [美][to]
根底
1.
Elimination methods of blasting toes in open stope of Tiegukeng mine;
铁古坑矿露天采场爆破根底的消除方法
4) toes after blasting
爆后根底
1.
Six causes were analyzed, which are connected with toes after blasting: including geological condition, insufficience in terms of plugging length, burden, charge quantity and subdrilling, and unreasonable initiation technology.
以在水泥矿山露天台阶式开采的经验和相关理论为主 ,分析了与产生根底有关的六个方面的原因 :地质条件恶劣、堵塞长度不足、抵抗线太小、装药量不足、超深不足、起爆技术不合理 ,并提出了相应的减少爆后根底的一些对策 ,并列举了一个工程实例。
5) Bench root
台阶根底
补充资料:根底
根底
toe rock
gend-根底(t oe rock)爆破后残留在露天台阶底部,超过下部台阶水平的岩体部分。露天台阶爆破时,有无根底产生是衡量爆破质量优劣的一个重要指标,有根底的爆堆,使挖掘机生产能力下降、增加设备故障和机件磨损、降低设备利用率,同时打乱采场的正常作业循环。为防止产生根底,应适应岩石结构,采用合理的孔网参数、正确的起爆顺序、足够的药量和防止拒爆等。在难爆矿岩或抵抗线过大爆破时,还应采取增加孔底药量或用高威力炸药等综合措施。消除已产生的根底,通常采用浅眼爆破法。 (曾世奇)
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参考词条