It is difficult to control the hole and the slope during frozen drill in profundity surface soil, this text bring forward some experience of manage ment and construction.
针对深厚表土层中冻结钻孔存在的钻孔深、偏斜率难控制等施工存在的问题,提出了一些施工与管理的经验。
The freezing trench of Gubei Colliery was constructed parallelly and crossly with the freezing hole boring, which combining with mechanization reduced the transition time from freezing hole boring to freezing process.
顾北矿井冻结沟槽施工采用与冻结孔钻进平行交叉作业的施工方式,使用机械化作业代替人工作业,钻孔结束至正式开机送冷仅用5 d时间,对缩短建井工期,使井筒提前开挖起到了重要作用。
Analysis and Application of Horizontal Ground Freezing Drilling-hole Trajectory in Construction of Metro Bypass
地铁旁通道水平冻结钻孔轨迹分析及应用
Analysis of Program of Deviation Prevention and Control in Freezing Hole Construction
冻结孔钻孔过程中的防偏及控偏方案浅析
Analysis on Bearing Capacity of Refreezing Process of Cast-in-place Bored Pile in Permafrost Region;
多年冻土地区钻孔灌注桩回冻过程承载力分析
Research of Bored Pile Vertical Carrying Capacity in Permafrost Region;
多年冻土地区钻孔灌注桩竖向承载力研究
Finite Element Analysis of Bored Pile in Permafrost Region;
多年冻土地区钻孔灌注桩的有限元分析
Cast-in-place Pile Construction Technique in Permafrost Regions of Chadaer-Muli Railway
柴木铁路多年冻土区钻孔灌注桩施工技术
Clinical research on application of electic burr to pyelolithotomy
复杂性肾结石电钻钻孔碎石的临床研究
Study on Pores Structure of Freeze-casting Formed Porous Ceramics from Water-based Slurry
水基料浆冷冻浇注成型多孔陶瓷孔结构研究
The Technology of Ground Freezing Drilling-hole of Subway Bypass in Complex Stratum
复杂地层地铁旁通道冻结孔施工技术
On design of fiber-optic gyroscope for inclinometer of freeze-hole
冻结孔测斜用光纤陀螺仪的设计研究
Application of screw refrigerator into freezing drilling industry for coal mine
螺杆制冷机在煤矿冻结钻井行业中的应用
tap(ping) drill
螺丝孔钻，螺丝底孔钻
The sorker was drilling.
此工人在用钻孔机钻孔。
Construction Technology of the deep bedrock freeze- hole in ventilation shaft in Hu Jiahe Coal
胡家河煤矿风井深厚基岩冻结孔施工技术
Technique of Theodolite for the Horizontal Ground Freezing Hole in Construction of Metro Bypass
隧道旁通道工程水平冻结孔经纬仪测斜技术
Any of numerous hand tools for boring holes.
钻孔工具，手钻钻孔用的手持工具
The correctness of the result was proved by some underground boreholes.
经过少量的井下钻孔验证，证实了结果的正确性。
Identification of coal block tcxture with core and application
用钻孔煤心鉴别煤层煤体结构及其应用