Settlement of terrain behind the shoring structure is calculated according to the following formula in case of parabolic method:
area formed by deformed structure and un-deformed structure
range of settlement
settlement at each point within the range of settlement
distance between the calculation point and the edge of the foundation pit
horizontal displacement at the top of the structure
horizontal displacement at the bottom of the structure
Note: δmax is calculated from Peck theory, while δ(x) is assumed as a parabolic curve. It’s obvious that the maximum value of δ(x) is not equal to δmax, but the maximum settlement is still considered as δmax.
Note: Calculation method for the range of settlement x0 is as same as in case of .