Advances in Materials Science and Engineering / 2018 / Article / Fig 4

Research Article

Elastic Analysis of Nonhomogeneous Frozen Wall under Nonaxisymmetric Ground Stress Field and in State of Unloading

Figure 4

Schematic diagram of finite-element model: (a) before freezing; (b) after freezing and before excavation; (c) after excavation. 1, unfrozen rock; 2, frozen wall; 3, rock to be excavated.
(a)
(b)
(c)