DG/TJ08-61-2010
Settlement of 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 using 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:
where: | δmax | - | maximum settlement |
δhm | - | maximum horizontal displacement of structure |
The range of settlement x0 is calculated as follows:
where: | x0 | - | range of settlement |
H | - | depth of excavation |
Settlement at each point δ(x) in range of settlement x0 is calculated as follows:
for x ≤ 0.5H |
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for 0.5H < x ≤ 2H |
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for 2H < x ≤ 4H |
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where: | δ(x) | - | Settlement at each point within the range of settlement or influenced area |
x | - | Distance between the calculation point and the edge of the foundation pit |
Literature:
DG/TJ08-61-2010 (Technical code for excavation engineering in Shanghai)