Settlement of the terrain behind the shoring structure is calculated according to the DG/TJ08-61-2010 (Technical code for excavation engineering in Shanghai) and it is suitable for use in soft soils.
Settlement behind the sheeting differs in two parts - main influence area and secondary influenced area.
Maximum settlement δmax is calculated as follows:
maximum horizontal displacement of the structure
The range of settlement x0 is calculated as follows:
range of settlement
depth of excavation
Settlement at each point δ(x) in range of settlement x0 is calculated as follows:
for x ≤ 0.5H
for 0.5H < x ≤ 2H
for 2H < x ≤ 4H
settlement at each point within the range of settlement or influenced area
distance between the calculation point and the edge of the foundation pit
DG/TJ08-61-2010 (Technical code for excavation engineering in Shanghai)