The ultimate axial bearing capacity (UABC) of a single pile is an important parameter in design. BP neural network (BPNN) has strong nonlinear mapping ability and can effectively predict the UABC pile. However, frequent immersion unstable search results with local vibration leads BPNN to less usable solution. weights biases model are optimized using improved radial movement optimization (IRMO) ...

In the field of PHC pile joints, it is important that prestressed high-strength concrete pipe piles are referred to as piles. conventional hoops, bamboo-like joints protrude from joint position at surface pile. Driving in, disturbing soil around pile, and affecting frictional resistance serious issues. To address such issues, herein, a new type clamping proposed. A method presented determine si...

The determination of the bearing capacity pile foundations is very important for their design. Due to high uncertainty various factors between and soil, many methods predicting ultimate focus on correlation with field tests. In recent years, artificial neural networks (ANN) have been successfully applied types complex issues in geotechnical engineering, among which back-propagation (BP) method ...

Abstract in geotechnical engineering, foundation piles are ideal for deep foundations that cannot bear higher loads. This architectural expansion places a great deal of responsibility on the engineer to anticipate appropriate load constructor. Unfortunately, calculations pile’s bearing capacity not accessible. It has always been source concern engineers, as structure’s safety depends and gives ...

The principle and method of self-balancing test are introduced briefly. In this article, through comparison common Q-S curve equivalent transformation to transform from the balance measured load-displacement for traditional load - displacement curve, puts forward advantages disadvantages each, three bored piles in static pile reaction detect vertical compressive ultimate bearing capacity single...

Abstract In the present study, a small piled raft foundation has been simulated numerically through PLAXIS 3-D software. The objective of this study was to investigate effect governing parameters such as pile length, spacing, diameter, and number piles on settlement load-bearing behavior raft, so achieve optimum design for configurations. An optimized is defined with allowable center differenti...

This paper proposes an analytical method based on drained solutions of cavity expansion and contraction in a unified clay sand model to investigate tunnel–soil–pile interactions. Cavity analyses are used evaluate the effects pile installation ground stresses determine end-bearing capacity distribution shaft friction. methods were adopted replicate tunnel convergence–confinement response using s...

The tandem compound piles are a combination of granular column in the deep section and concrete pile shallow section. This method effectively utilizes consolidation densification effects column, as well cementation strength material. acts path, aiding surrounding soil. On other hand, prevents bulging deformation that commonly happens columns during field construction. To study bearing capacity ...