A Practical Swelling Constitutive Model of Anhydrite and Its Application on Tunnel Engineering

Figure 1

(a) One result of X-ray diffraction analysis. All four anhydrite samples for quantitative analysis show similar peaks as above (a). There are differences between X-ray diffraction analysis result of anhydrite in this paper and that reported by [18]. (b) An anhydrite sample after processing which is bluish-grey.

(a)

(b)