Experimental Study on Deformation and Acoustic Emission Characteristics of Arch Roadway under Different Unloading Rates

<div>The arrangement of strain gauges. (a) The arrangement at the vertical section. (b) The arrangement at the cross section.</div>

Advances in Civil Engineering

Figure 1: Experimental Study on Deformation and Acoustic Emission Characteristics of Arch Roadway under Different Unloading Rates 