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Repacking practice for G-3 engineering driller power unit with drive shaft of dual channel reverse circulation |
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| Authors: | Lihong ZHU Kun YIN Qingyan WANG Yong HUANG College of Construction Engineering Jilin University Changchun China |
| Institution: | College of Construction Engineering, Jilin University, Changchun 130026, China |
| Abstract: | In order to satisfy operating requirements for constant core drilling technology in reverse circulation with hollow-through DTH,the power unit of G-3 engineering driller was ameliorated. The new one with dual channel drive shaft, achieved the perfect assemble with transmission structure of the original power unit. It could interconvert according to need by using two sets of drive shafts with direct and reverse circulation. The repacked G-3 engineering driller carried on experiment in the field test in Luanc... |
| Keywords: | power unit drive shaft reverse circulation constant core drilling technique G-3 engineering driller |
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