Calculation Method on the Horizontal Bearing Capacity of the Stiffened Deep-Cement-Mixing Monopile Based on m Method

Abstract

The existing calculation methods of the horizontal bearing capacity(HBC) on the stiffened-deep-cementmixing(SDCM) monopile in relevant design codes are not very clear. The value range of key parameters in different codes diversifies greatly, which leads to the design inconvenience. Based on the summarizations on the existing HBC computation methods for the SDCM monopile derived from domestic design codes, m method is utilized to discuss the influence effects for the pile bending stiffness, the HBC, the main parameters details including m with the contribution of the cement soil to the pile bending stiffness. The analysis shows that the cement soil as a part of pile is reasonable for the bending stiffness of the SDCM monopile. The proportional coefficient of horizontal resistance coefficient of foundation soil, m, can be decided by improving a category of soils in accordance with the suggestion values in Technical Code for Building Pile Foundations(JGJ94-2008).

Keywords

• stiffened deep-cement-mixing pile
• m method
• horizontal bearing capacity
• pile bending stiffness