Drillers and blasters often perform both drilling and blasting activities.
钻井工人和爆破手经常进行钻探及爆破活动。
All these tunnels have been excavated by methods of drilling and blasting.
所有这些隧道都是用钻爆法进行开挖的。
Drilling and blasting are important components in mine construction design.
钻眼爆破工作是矿山施工设计的重要组成部分。
At present, drilling and blasting method is mainly used in the shaft excavation.
目前，天井的掘进方法，主要采用钻爆法。
They are employed by mining, quarrying and construction companies and by drilling and blasting contractors.
他们受雇于采矿，采石和建筑公司，也受雇于钻孔和爆破承包商。
In this paper, the technique of drilling and blasting dealing with the disconnected side under shallow water is studied.
文章通过分析现有浅水钻孔爆破的现状，对处理浅水间断面水下爆破技术进行了研究。
It emphases introduces the way and the effect of drilling and blasting construction at the bedrock section of main shaft.
重点介绍了井筒基岩段钻眼爆破施工方法及效果。
This unit group includes excavating, grading, paving, drilling and blasting contractors who own and operate their own business.
本单元组包括拥有和经营自己生意的挖掘，分级，铺路，钻井和爆破承建商。
The technique of primary drilling and blasting is an effective way to solve the problem of crushing, caving and transportation.
该方法的初采钻爆技术是解决顶煤破碎与顺利放出的有效途径之一。
This unit group includes excavating, grading, paving, drilling and blasting contractors who own and operate their own business.
该项包括那些拥有和经营自己企业的承包商，涉及的范围有挖掘，分级，铺砌，凿岩爆破这些方面。
The investigation showed that the bad rock and unreasonable drilling and blasting were the main inducing factor of stope collapse.
调查表明，岩性变差与凿岩爆破工艺不合理是采场跨塌的主要诱因。
During different working conditions, we need repeated experiment and optimization for getting the best results of drilling and blasting method.
在不同的工作环境中，需经反复的试验与优化，才能使钻爆法施工获得最佳效果。
The study of Rock drillability and blastibility is a basic topic in the fields of drilling and blasting, it has important practical meaning also.
岩石可钻性和可爆性研究是凿岩爆破领域的基础性课题，同时也具有重要的实际意义。
With the rapid development of railway engineering construction, drilling and blasting method will be widely used to excavation of railway tunneling.
随着铁路工程建设的迅猛发展，钻眼爆破法将会越来越多地被应用于铁路隧道的开挖。
To make their design rational, a knowledge based shaft drilling and blasting design expert system (SDBES) was developed using OEC, a tool for expert system.
为使其设计合理，利用专家系统工具o EC开发了立井钻眼爆破设计专家系统(S DBES)。
For the frozen weathered bedrock, sandy gravel and pebble bed, it is more suitable to use drilling and blasting method than to use the frozen soil excavator.
对冻结风化基岩、砂砾层或卵石层，冻土挖掘机效率低，宜采用钻眼爆破法，采用抓岩机装载冻土。
The 1~(st) domestic hydraulic umbrella drill is therefore introduced to accelerate drilling velocity with obvious effect as a new breakthrough for drilling and blasting.
为了更好地加快施工进度，在打眼爆破方面要有新的突破，引进国内首台液压伞钻，大大提高了的打眼速度，效果显著。
The main methods for the construction of tunnel are usually both the traditional drilling and blasting method and the modern method of TBM, which have their own applicable conditions concerned.
隧洞施工的主要施工方法是传统的钻爆法和现代的掘进机法，各个方法均有其不同的适用条件。
Serial blasting crater test method was used in underground medium and deep hole mining of Dahongshan copper mine for determining drilling and blasting parameters, and good results were obtained.
大红山铜矿地下中深孔采矿中，采用系列爆破漏斗试验方法确定中深孔采矿凿岩爆破参数，取得了较好的效果。
On the other hand, drilling and blasting are main construction method of the underground project excavation, it can't be ignored that the vibration response of surrounding rocks on dynamical loads.
另一方面，钻爆法仍然是地下工程开挖的主要施工方法，围岩在动态荷载作用下的振动响应也是一个不可忽视的问题。
Open-pit mining follows the same sequence of oprations as underground mining: drilling, blasting, and loading and removing waste and ore.
露天采矿遵循与地下采矿相同的作业顺序：钻孔、爆破、装载并运走废料和矿石。
Open-pit mining follows the same sequence of operations as underground mining: drilling, blasting, and loading and removing waste and ore.
露天采矿遵循与地下采矿相同的作业顺序：钻孔、爆破、装载并运走废料和矿石。
Drillers in this unit group operate mobile drilling machines to bore blast holes in open-pit mines and quarries and to bore holes for blasting and for building foundations at construction sites.
该项中的钻探工人操作移动钻孔机实施露天矿和采石场的钻孔爆破以及建筑工地的建筑物基础设施的爆破工作。
Through example, applications of blasting technology in drilling construction are introduced, and provided method use for reference to resolve similar problems in drilling construction from now on.
通过实例，介绍了钻探施工过程中，爆破技术的应用，为解决今后钻探施工的类似问题，提供了可借鉴的方法。
The undermine method of well drilling technology once of blasting is put forward as well as the calculation of blasting parameters and the demand of implementation for hole.
介绍了爆破一次成井技术在漂塘钨矿的应用实践，提出了爆破一次成井的掏槽方式，爆破参数的设计计算方法和炮孔的施工要求。
How to lower the blasted Boulder yield is an important problem in rock's blasting excavation and ore's drilling blasting.
降低爆破大块率是岩石爆破开挖和矿岩凿岩爆破中的一个重要课题。
How to lower the blasted Boulder yield is an important problem in rock's blasting excavation and ore's drilling blasting.
降低爆破大块率是岩石爆破开挖和矿岩凿岩爆破中的一个重要课题。
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