For making up examination holes, exploratory pits are elementarily used as a supplemental way examining the effects of earth-fill dam grouting testing.
坑探作为检查土坝灌浆试验效果的一种辅助方法,目的在于弥补检查孔的不足,通过工程实践,对其应用的优越性进行探讨。
By using drilling in pit,ore reserve classification is increased,risks of underground mining engineering are reduced and avoided.
主要阐述了矿区通过实施坑内钻探,提高储量级别,降低和避免井下采矿工程风险,节约了成本,增加了效益。
Combining with a tunnel construction case,an ordinary method of ascertaining Optimum hole depths in small exploration tunnel drivage is discussed.
结合一坑道施工实例,论述了小型探矿坑道确定最优炮眼深度的一般方法。
ventilation and drainage of exploratory tunnel
坑探勘探坑道通风排水
Special drilling or adits outside orebody may be required.
可能要求在矿体外作专门钻探或坑探。
Further work will involve more detailed mapping, pitting, trenching.
进一步工作就是指更详细的填图，坑探，槽探等。
Prospecting Implementation of Drills Replaced by Pit and the Combination of Pit with Drills in the Mine
以钻代坑及坑钻组合探矿方式在矿山的实施
DISCUSSION ON SOME PROBLEMS IN THE EARTH ANCHOR ROD FOR DEEP FOUNDATION PIT SUPPORT
土锚杆深基坑支护中几个问题的探讨
Calculation Model for Deep Foundation Pit Side Wall Retaining Design
深基坑边坡支护设计计算模式的探讨
To Inquire into Quantity of Zhao s War Prisoners Killed by Qin after Campaign of Changping During Warring States;
战国长平之战赵降卒被秦坑杀数新探
An Inquirty into the Ancient Couplets of Liukeng;
村中古韵 联中奇葩——流坑古楹联探析
DISCUSS OF THE CONSTRUCTION AND DESIGN OF BRACING STRUCTURE FOR FOUNDATION PIT
探讨漳州某基坑支护工程设计与施工
DEEP FOUNDATION DITCH SUPPORT DESIGN AND CONSTRUCTION IN HEFEI
合肥地区深基坑支护设计与施工初探
DISCUSSION ON SEVERAL ISSUES OF SEEPAGE STABILITY OF DEEP FOUNDATION PIT IN MULTILAYERED FORMATION
多层地基深基坑的渗流稳定问题探讨
Pine Wilt Disease of the Safe Use of Wood Prop
松材线虫病疫木作坑木安全利用初探
Open pit iron ore 35kV power supply substation
露天铁矿35kV坑内变电站供电初探
The boys went exploring in some disused workings, eg the shafts of an old tin mine.
那些男孩子到一些废弃的矿坑去探险（如旧锡矿的竖坑中）.
The discussion on several problems of foundation pit bracing engineering in taiyuan
太原市基坑支护工程中若干问题的探讨
Strength Analysis of Screw Sufface and Structure Parameters Study of Auger of Mounted Hole Digger
挖坑机钻头螺旋面强度分析及结构参数探讨
Discussion about relation between the rate of supporting pit roof and supporting effect of backfilling mass
坑采充填接顶率与充填体承载效果关系探讨
The discussion of the cause of split and resolution programme on foundation pit bracing of Baishida garder
佰仕达花园基坑支护裂缝成因及处理方案探讨