Experimental study on large diameter drilling in hard rock annular coring

Yinzhu WU;Guochun YANG;Wenchen WANG

Global Geology ›› 2008, Vol. 11 ›› Issue (1) : 32-36.

PDF(162 KB)
PDF(162 KB)
Global Geology ›› 2008, Vol. 11 ›› Issue (1) : 32-36.

Experimental study on large diameter drilling in hard rock annular coring

  • Yinzhu WU;Guochun YANG;Wenchen WANG
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Yinzhu WU;Guochun YANG;Wenchen WANG. Experimental study on large diameter drilling in hard rock annular coring[J]. Global Geology. 2008, 11(1): 32-36
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