With the continuous development of urbanization and rapid science technology, requirements for foundation pit engineering are getting higher higher. Foundation is gradually developing in direction larger area deeper excavation. In examples, combined supporting structure a pile–brace pile–anchor pits widely used, while examples supported by pile–anchor–brace system less frequently used. Based on...

Pile foundation systems are used in India many projects such as metro and railways, flyovers, multi-story buildings. The pile transfers superstructure load to the substructure, i.e. rock layers by means of skin resistance end-bearing resistance. In this study, an attempt is made observe performance socketed piles soft rock. A series small-scale model laboratory studies have been conducted using...

High-speed railways are built in deep soft-soil foundations interlayered with hard materials. However, the layers cannot be penetrated by conventional foundation treatment. Moreover, project cost is sometimes prohibitive, which an issue for post-construction subsidence control. The bag grouting pile a special grouting-pile-reinforcement technique treating This paper conducted tests on Ningbo-Ta...

In this paper, the lateral limiting pressure on square pile groups in undrained soil is explored using two-dimensional finite-element modelling. A parametric study conducted to assess role of pile–soil adhesion, group size and spacing capacity corresponding failure mechanisms. Results from output show that large closely spaced piles exhibit significant reductions compared equivalent single valu...

The pile–beam–arch method (PBA) is increasingly being used in the construction of metro stations with complex traffic conditions. rise–span ratio arch not only affects height station, but also rationality design subway and safety construction. mechanical response steel pipe piles different ratios effect controlled surface settlement have been investigated interactions involved pile–soil system....

In order to investigate the influence of different diameters on pile end resistance, side axial force and transmission law jacked penetration, two pairs embedded sensitized microfiber grating sensors were installed by slotting body. The pile-jacking process static-pressing viscous foundation soil with closed-tube model piles was successfully monitored. test results show that pressure, resistanc...

Considering viscoelastic saturated soil, The transient dynamic response of an elastic pile is studied. The pile-soil system is divided into thin layers, the control equations of the soil are solved respectively by using Laplace transform. Considering the mixed boundary-value conditions at the interface of pile and soil, expression is derived to describe the relationship between the inner force ...