What does this research mean for the field?

During bentonite slurry penetration in porous media, the slurry's yield stress has a more pronounced effect on the pressure drop across the infiltration zone than its viscosity, and together with sand properties, determines the final infiltration distance. Novelty: ClaimNovelty.INCREMENTAL. Consensus alignment: ConsensusAlignment.NEUTRAL.

What question did this study set out to answer?

The study aims to identify the key factors influencing the infiltration of bentonite slurry in porous media.

May 17, 2026Journal of Geotechnical and Geoenvironmental Engineering

Experimental Investigation of Bentonite Slurry Infiltration through Porous Media: Governing Factors and Applications in Tunnel Boring Machine Drilling

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Authors

CZChenghao ZhangUniversity of Macau ABAdam BezuijenUniversity College Ghent

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Implication

Experimental investigation demonstrates how bentonite slurry infiltration is influenced by various factors, informing tunnel boring applications.

Key Points

The study aims to identify the key factors influencing the infiltration of bentonite slurry in porous media.
Conducted infiltration experiments using various combinations of slurries, sands, pressures, and setups.
Monitored pore water pressure variations with sensors during infiltration.
Developed analytical models to estimate pressure drop, infiltration velocity, and distance.
Yield stress of bentonite slurry significantly affects pressure drop across the infiltration zone.
Lower driving pressure, reduced sand permeability, or longer sand length leads to decreased infiltration velocity.
Analytical models accurately predict infiltration velocity and distance, correlating well with experimental data.

Cite This Study

Zhang et al. (2026) studied this question.

synapsesocial.com/papers/6a095c3f7880e6d24efe2618 https://doi.org/10.1061/jggefk.gteng-14329

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Implication

Experimental investigation demonstrates how bentonite slurry infiltration is influenced by various factors, informing tunnel boring applications.

Experimental Investigation of Bentonite Slurry Infiltration through Porous Media: Governing Factors and Applications in Tunnel Boring Machine Drilling

Discussion

Member takes

Implication

Key Points

Cite This Study

Experimental Investigation of Bentonite Slurry Infiltration through Porous Media: Governing Factors and Applications in Tunnel Boring Machine Drilling

Discussion

Member takes

Implication

Key Points

Cite This Study

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