3D DEM modeling of biocemented sand with fines as cementing agents

H Wu, W Wu, W Liang, F Dai, H Liu… - International Journal for …, 2023 - Wiley Online Library
Microbially induced calcium carbonate precipitation (MICP) has attracted much attention as
a promising green technique for soil improvement. Despite the significance of precipitation …

[HTML][HTML] Experimental study on mix proportion optimization of anti-calcium dissolution shotcrete for tunnels based on response surface methodology

C Tian, Y Tong, J Zhang, F Ye, G Song, Y Jiang… - Underground …, 2024 - Elsevier
Aiming at the issue of crystallization and blockage of drainage system due to the massive
calcium loss from the tunnel shotcrete, a self-designed tunnel seepage crystallization …

Spatiotemporal evolution of biomineralization in heterogeneous pore structure

G Ma, X He, Y Xiao, J Chu, H Liu… - Canadian …, 2023 - cdnsciencepub.com
A fundamental understanding of the CaCO3 precipitation process in the pore network of
geomaterials is important to uncover the mechanism behind the evolution of the engineering …

The failure type-dependent characterization of liquefaction resistance by small-strain shear modulus for saturated sand

XH Zhou, YG Zhou, YM Chen - Engineering Geology, 2024 - Elsevier
In this study, a re-visit of existing laboratory tests was carried out to study the relationship
between the liquefaction resistance (CRR) and the small-strain shear modulus (G max) of …

Optimization of biocementation responses by artificial neural network and random forest in comparison to response surface methodology

VL Pacheco, L Bragagnolo, F Dalla Rosa… - … Science and Pollution …, 2023 - Springer
In this article, the optimization of the specific urease activity (SUA) and the calcium
carbonate (CaCO3) using microbially induced calcite precipitation (MICP) was compared to …

Sand stiffness variability induced by stochastic distributions of calcite precipitates: a Monte Carlo-DEM study

M Sun, P Liu, Y Chen, B Bate, F Xue - Acta Geotechnica, 2025 - Springer
The inclusion of calcite precipitates (CaCO3) in soft soil can improve the mechanical
properties. Understanding the variability in sand stiffness due to heterogeneous precipitates …

Dispersion of particle spin waves in granular materials: Micromorphic modeling and DEM simulation

P Yu, Y Liu - Computers and Geotechnics, 2025 - Elsevier
Particle spin waves in granular materials play a crucial role in understanding material
properties at the microscale, yet their behavior remains poorly understood. This study …

A One-Dimensional Reactive Transport Model for Microbially Induced Calcium Carbonate Precipitation (MICP) in Phreeqc

MA Razbani, A Røyne, E Jettestuen - Geomicrobiology Journal, 2024 - Taylor & Francis
Microbially induced calcium carbonate precipitation (MICP) is a geotechnical solution with a
low ecological footprint. Conducting MICP inside a porous medium can be used for …

Analysis of the breakage of the bio-cementation generated on glass beads during a direct shear test using a DEM model

M Valencia-Galindo, E Sáez, M Kozakovic… - Computational Particle …, 2024 - Springer
The improvement of soil behaviour by the bacterial precipitation of calcium carbonate has
been extensively studied in geotechnical engineering. However, the evolution of bio …