Ground improvement engineering – the state of the US practice: part 1. Methods

Munfakh, George A.

doi:10.1680/gi.1997.010402

Cited by 22 publications

(3 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Improving soils has numerous objectives including strength increase, settlement reduction, and increasing durability. Various studies have investigated different additives such as cement, lime, bitumen, fly ash, and so on, which have been used to improve soil behavioral properties (Lin et al, 2007;Munfakh, 1997;Hausmann, 1990;Chu and Rujikiatkamjorn, 2005;Lo and Wardani, 2002).…”

Section: Introductionmentioning

confidence: 99%

Evaluating the Effect of Environment Acidity on Stabilized Expansive Clay

Jahromi

Noori

2023

Studia Geotechnica Et Mechanica

View full text Add to dashboard Cite

In this article, the effects of environmental acidity on the mechanical and volumetric properties of cement-stabilized clay soils have been investigated through various tests on experimental scale. In this study, a problematic clay was chemically stabilized by cement under three treatment conditions including short term, medium term, and long term with different conditions varying from acid to alkaline environments, which were tested by different methods to evaluate their mechanical and volumetric behavior and properties. Mechanical characteristics assessment tests in this study include compaction tests, and unconfined compressive strength, which was conducted on samples under different conditions in terms of acidity and treatment time. The results of the study indicated that soil improvement by cement increases the mechanical strength and decreases the rate of soil swelling over time and treatment duration. However, the degree of acidity of the environment affects the chemical reactions of soil and cement, especially cement hydration, which causes changes in soil strength and volume variation due to swelling.

show abstract

Section: Introductionmentioning

confidence: 99%

Evaluating the Effect of Environment Acidity on Stabilized Expansive Clay

Jahromi

Noori

2023

Studia Geotechnica Et Mechanica

View full text Add to dashboard Cite

show abstract

“…Andreou et al, 2008). It has been used to improve the foundation soil for the wastewater treatment plant in California (Mitchell and Huber, 1982) and strengthening of cellular structure dredged material disposal facility in Baltimore (Munfakh, 1997). In Japan, extensive application has been made in the Osaka Bay to construct the Kansai International Airport (Aboshi et al, 1979).…”

Section: Introductionmentioning

confidence: 99%

Behaviour of clay reinforced by sand compaction pile with smear

Juneja

Mir

2012

Proceedings of the Institution of Civil Engineers - Ground Impr

View full text Add to dashboard Cite

In the design practice for sand compaction piles (SCPs), it is usually assumed that the state of in situ soil does not change during the installation. In fact, there is evidence to suggest that extensive remoulding of the preferred soil fabric occurs within the zone immediately surrounding the SCP. Properties of the soil within this heavily disturbed zone can affect the pore pressure dissipation, and hence the time after which the ultimate strength of the composite ground would be available. In this study, the effect of smear zone around SCPs is modelled in the laboratory using triaxial tests. SCPs of 25–80 mm diameter were installed in 100 mm diameter cylindrical samples. The sand columns were installed by pre-drilling a hole and then backfilling it with well-compacted sand. The smear zone was created by using a rough casing to drill the hole. The effect of the smear zone on SCP was investigated by observing the change in pore pressure during consolidation and the undrained shear strength of the composite sample. Although the shear-induced pore pressures and the undrained shear strength of the composite samples could reasonable be predicted, wide scatter still existed in the relationship between the stress concentration factor and the area replacement ratio.

show abstract

“…It improves mechanical characteristics and soil permeability after hardening (Cambefort, 1967;Gouvenot, 1998;Munfakh, 1997;Schlosser, 1997;Welsh, 1998).…”

Section: Introductionmentioning

confidence: 99%

Comparison of Creep Behaviour and Fatigue Behaviour of Grouted Sand

Delfosse-Ribay

Djéran-Maigre

Cabrillac

et al. 2007

Soils and Foundations

View full text Add to dashboard Cite

An experimental study aimed at comparing of creep and fatigue behaviour of grouted sand is presented. Unconˆned creep tests and cyclic tests were performed to highlight the creep and the fatigue behaviour of Fontainebleau sand grouted with three types of grout: a silicate grout, a micro-ˆne cement-based grout and a mineral-based grout. Creep and fatigue results were compared in terms of strain rate, creep slope or fatigue slope, and creep limit strength or fatigue limit strength. Some analogies were observed between the creep and the fatigue behaviours. These behaviours can be compared from a qualitative point of view, since creep and fatigue curves have the same shape (both showing primary and tertiary behaviour), and from a quantitative point of view, under certain loading conditions.

show abstract

Ground improvement engineering – the state of the US practice: part 1. Methods

Cited by 22 publications

References 0 publications

Evaluating the Effect of Environment Acidity on Stabilized Expansive Clay

Evaluating the Effect of Environment Acidity on Stabilized Expansive Clay

Behaviour of clay reinforced by sand compaction pile with smear

Comparison of Creep Behaviour and Fatigue Behaviour of Grouted Sand

Contact Info

Product

Resources

About