JOURNAL OF YANGTZE RIVER SCIENTIFIC RESEARCH INSTI ›› 2009, Vol. 26 ›› Issue (8): 51-53.

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Analysis on In-situ Settlement Measurement of Sluice without Piles Located on ③ Soil Stratum in Shanghai

  

  • Online:2009-08-01 Published:2012-07-03

Abstract: On the basis of the measured displacements from the chamber of a check sluice in Zhujia Harbor, the total settlements obtained from the time settlement curve and hyperbolic matching method were compared. The relationship between displacement and foundation resistance was analyzed. The check sluice was built directly on the 3rd stratum of Shanghai clay with no piles underneath. The results showed that: (1) the sluice settlement during construction period was about -40 mm; (2) a typical pseudo-convergence would occur on the time settlement curve during the first month after the sluice running; (3) the settlement data predicted by the hyperbolic matching method indicated the transient (elastic/elastoplastic) settlement was about 25%~50% of the total settlement, of which the rest will appear again in a long time after construction; (4) the measured resistance in the 3rd stratum of Shanghai clay was concordant with the measured displacement.