Study on the Applicability of an Improved Pile-Beam-Arch Method of Metro Station Construction in the Upper-Soft and Lower-Hard Stratum

<div>Experimental process of rock mass in the station. (a) Rock specimen collection and preparation. (b) Triaxial experimental instrument.</div>

Advances in Civil Engineering

Figure 5: Study on the Applicability of an Improved Pile-Beam-Arch Method of Metro Station Construction in the Upper-Soft and Lower-Hard Stratum 