›› 1986, Vol. 7 ›› Issue (2): 79-85.

• Fundamental Theroy and Experimental Research • Previous Articles     Next Articles

The Principle and Its Application of Type WRM-3 Multi-point Borehole Extensometer

Gu Zhimeng; Bai Shiwei; Xin Zhijian;   

  • Online:1986-10-20 Published:2017-05-17

Abstract: The design idea, principle of measurement, structural feature and some results obtained from the field measurements in hard intact and cracked soft rock masses are introduced in this paper.

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