English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

This paper develops a general and complete solution for the undrainedcylindrical cavity expansion problem in non-associated Mohr-Coulomb soil undernon-hydrostatic initial stress field (i.e., arbitrary K_0 values of the earthpressure coefficient), by expanding a unique and efficient graphical solutionprocedure recently proposed by Chen & Wang in 2022 for the special in situstress case with K_0 = 1. The new generalized, graph-based theoreticalframework contains two essential components: the geometrical analysis to trackthe stress path trajectory/evolution in different sectors of the deviatoricplane; and a full Lagrangian formulation of both the constitutive relationshipand radial equilibrium equation to analytically determine the representativesoil particle responses at the cavity surface. It is interesting to find thatthe cavity expansion deviatoric stress path is always composed of a series ofpiecewise straight lines, for all different case scenarios of K_0 beinginvolved. The salient advantage/feature of the present general graphicalapproach lies in that it can deduce the cavity expansion responses in fullclosed form, nevertheless being free of the limitation of the intermediacyassumption for the vertical stress and of the difficulty existing in thetraditional zoning method that involves cumbersome, sequential determination ofdistinct Mohr-Coulomb plastic regions. The analytical closed-form solutionsdeveloped herein can be regarded as a definitive one for the undrained cavityexpansion problem in classical Mohr-Coulomb materials without theapproximations and simplifications in previous solutions, and will be of greatvalue for the interpretation of pressuremeter tests in cohesive-frictionalsoils.

A Complete Graphical Solution for Undrained Cylindrical Cavity Expansion in K_0-Consolidated Mohr-Coulomb Soil