Stability Analysis on the Long-Term Operation of the Horizontal Salt Rock Underground Storage

Figure 15

Plastic zone distribution map of double-cavern horizontal salt rock underground storage with different pillar widths (20a). (a) d = 40 m; (b) d = 80 m; (c) d = 100 m; (d) d = 120 m; (e) d = 140 m; and (f) d = 180 m.

(a)

(b)

(c)

(d)

(e)

(f)