Journal of Sensors / 2019 / Article / Fig 9

Research Article

Experimental Study on the Application of BOTDA in the Overlying Strata Deformation Monitoring Induced by Coal Mining

Figure 9

The picture of the model’s overlying strata structure.
(a) The initial overburden structure
(b) The structure after face 1 mining
(c) The structure after face 2 mining

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