The Improvement Design on the Inner Structure of Subterrene
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摘要: 热熔钻进是一种新式钻进技术。自从2 0世纪6 0年代,美国Los Alamos National Laboratory (LANL)开始研究热熔器钻具以来,对热熔器的结构及材料的选择一直没有完全定位。我国在这方面的研究进行的比较晚。作者在试验结果研究的基础之上以ϕ80mm热熔器为例对其内部加热电阻进行了改进设计。Abstract: The subterrene drilling method is a new excavation technology Since the 60's of 20 centuries when the United States started studying drilling exploring,the structure design and material choice of subterrene has not been determined unanimously Studies of our country in this respect are late Based on the results of experimental study,the author take thesubterrene with 80mm diameters as an example to proceed the improvement design on its inner heating resistor structure
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Key words:
- subterrene material /
- heating resistor /
- improvement design
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