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Discussion on the Modification of Settlement Calculation Parameters for Structural Soft Soil, Considering Structure Damage

Excerpt

For the natural structural soft soil, the destabilization and loading may damage its structure, which is called structure damage. The structure damage will lead to the degradation of strength, the increment of compressibility and the multiplication of soft foundation settlement. But the compressibility parameters, obtained from the desk compression tests, can not reflect the deformation characters of the preloading and draining soil very well; therefore, the calculated settlement is not usually consistent with the practical settlement. In order to set the desirable method to determine the compressibility parameters of soil layer, based on analysis of the deformation characters and deformation caused by structure damage, this paper proposed a calculation parameter modification method for calculating settlement in the preloading and drainage of structural soft soil. Based on filling sea project in west cannels of Shenzhen, a compression index and compression modulus inquired into from the measuring settlement value were used for modifying parameters of compression index and compression modulus obtained by desk test, so the reliability of the settlement calculation could be increased and the method introduced in this paper has some reference significance for the engineering practice.

  • Abstract
  • Introduction
  • Deformation Influences on the Characteristic of Soft Soil and Structure Damage
  • Modification of Structural Soft Soil Consolidation Settlement Parameters
  • Case Study
  • Conclusion
  • References

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