SANISAND-CH: A high-pressure bounding surface model for cemented sand, including methane hydrate-bearing sediments

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388998%3A_____%2F25%3A00618131" target="_blank" >RIV/61388998:_____/25:00618131 - isvavai.cz</a>

Result on the web

<a href="https://www.sciencedirect.com/science/article/pii/S0266352X2400925X" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0266352X2400925X</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.compgeo.2024.106986" target="_blank" >10.1016/j.compgeo.2024.106986</a>

Result language

angličtina

Original language name

SANISAND-CH: A high-pressure bounding surface model for cemented sand, including methane hydrate-bearing sediments

Original language description

This paper introduces a new constitutive model capable of predicting both the shear and compressive stress response of common cemented sand and methane hydrate-bearing sediments (MHBS) under high pressures. This model extends the SANISAND-H model, which is designed for the high-pressure response of clean sand, and incorporates specific constitutive elements from the SANISAND-C model, tailored for cemented sand under normal stress levels. It refines the narrow, closed conical yield surface of the SANISAND-H model by incorporating a bonding strength variable that diminishes with plastic strains. Furthermore, it modifies the critical state lines, reference compression curve, elastic parameters, state parameter, flow rule, and hardening law of SANISAND-H model to account for the cementing and densifying effects of cementitious materials. To capture the effects of temperature, pore pressure, and salinity on the behavior of MHBS, the model includes a condition parameter, influencing the critical state and bonding strength. Validation through laboratory tests confirms the model’s accuracy in simulating the enhanced shear strength, dilatancy, and softening behavior, as well as the reduced compressibility of cemented sand. Moreover, it accurately captures the mechanical responses induced by particle crushing under high pressures.

Czech name

—

Czech description

—

Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

20302 - Applied mechanics

Project

<a href="/en/project/GA23-05338S" target="_blank" >GA23-05338S: Mechanical and structural properties of additively manufactured AlSi10Mg alloy with effect of powder recycling</a><br>

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2025

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Computers and Geotechnics

ISSN

0266-352X

e-ISSN

1873-7633

Volume of the periodical

179

Issue of the periodical within the volume

March

Country of publishing house

GB - UNITED KINGDOM

Number of pages

22

Pages from-to

106986

UT code for WoS article

001401450600001

EID of the result in the Scopus database

2-s2.0-85213071718