Finite Element Optimised Back Analysis of In Situ Stress Field and Stability Analysis of Shaft Wall in the Underground Gas Storage

Figure 9

von Mises stress distribution of the shaft wall in well UGS1.

(a) 0.00 m around the shaft wall

(b) 0.60 m around the shaft wall

(c) 1.05 m around the shaft wall

(d) 1.65 m around the shaft wall

(e) 2.55 m around the shaft wall