Model Test and Numerical Simulation of the Mudcake Thickness Effect on the Bearing Capacity of Vertically Loaded Single Piles

Abstract

Mudcake is an important factor affecting the bearing capacity of vertically loaded single piles. The model test and numerical calculation were used to analyse the stress and displacement characteristics of vertically loaded single piles under the conditions of different mudcake thickness and loading capacity. The effect of mudcake thickness on bearing capacity has been analyzed systematically, and its mechanism and changing laws were revealed. Eventually, the concept of the mudcake thickness effect was proposed, which must be considered fully during the construction of mud protection bored piles. The research results have important scientific value and guiding significance for understanding of the influence of pile side mudcake on the bearing capacity of vertically loaded single piles.

Model Test and Numerical Simulation of Water Conservancy Foundation Bearing Capacity

“…The slip line method divides the soil into two parts, plastic zone and rigid zone. According to the stress yield condition, equilibrium equation, and stress boundary condition, the different distributions of stress, displacement, and velocity in the plastic zone can be solved, and the boundary stress within the foundation can be calculated [ 8 ]. In the ideal case, the exact solution of the slip line without soil weight has been proved to be a complete solution.…”

Model Test and Numerical Simulation Study on the Effect of Mudcake and Length‐Diameter Ratio on the Bearing Capacity of Bored Cast‐in‐Place Piles

“…Mudcake is a layer of sticky clay between the pile and the soil on the side of the pile [14]. e mudcake is taken from the site of the second section of the south extension project of a highway in Hefei, and it is evenly brushed on the pile by brush.…”

“…In summary, the research on the bearing capacity of bored piles under the combined influence of mudcake and pile length-diameter ratio is still insufficient. e test of bearing capacity of piles with mudcake thickness has been done, which was introduced in [14].…”