Efficiency of Vacuum Preloading on Consolidation Behaviour of Cochin Marine Clay

Krishnapriya, P.B.; Sandeep, M. N.; Antony, Jency

doi:10.1016/j.protcy.2016.05.034

Cited by 6 publications

(2 citation statements)

References 3 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The impact of vacuum preloading on the consolidation behaviour of Cochin marine clay was studied and it was reported that there is a substantial increase of 60% in the coefficient of consolidation with vacuum preloading while the time for 90% consolidation is reduced by 70% (Kirshnapriya et al, 2016).…”

Section: Claymentioning

confidence: 99%

Studies on Characteristics, Applications and Strength Improvement of Marine Clay: A Review

Saisubramanian¹,

Murugaiyan²,

Sundararajan³

2019

GEP

View full text Add to dashboard Cite

Strength assessment and improvement of strength parameters are essential to design the foundation in clay and marine clay. Several studies have been made in this aspect. Marine clay is also a potential material for use as liner material to contain landfill leach ate. The applications include use of marine clay for transforming waste into light weight aggregates and thus create better environment. The physical parameters such as Atterberg limits, California Bearing Ratio (CBR) value, dry density, specific gravity, free swell, chemical properties such as p H value, cation exchange capacity, organic matter content, calcium carbonate, and mineralogical composition using X-ray diffraction analysis are studied. The consolidation characteristics, determination of strength improvement strategies using admixtures at different proportions are frequently adopted. Commonly used admixtures are lime, limes mixed with cement, coir, shredded plastics. The consolidation studies are very vital and play an important role.

show abstract

Section: Claymentioning

confidence: 99%

Studies on Characteristics, Applications and Strength Improvement of Marine Clay: A Review

Saisubramanian¹,

Murugaiyan²,

Sundararajan³

2019

GEP

View full text Add to dashboard Cite

show abstract

“…Therefore, rapid treatment of dredged mud Water 2023, 15, 4206 2 of 17 slurry has become a common challenge faced by coastal and inland cities during their development. Due to its low unit cost and high construction efficiency, vacuum preloading technology is widely used in the treatment of dredged mud slurry [5][6][7][8][9][10]. Through vacuum preloading, negative pressure is applied to create a pressure gradient between the prefabricated vertical drains (PVD) and their surrounding dredged mud slurry, thus continuously extracting pore water from the dredged mud slurry and accelerating its consolidation.…”

Section: Introductionmentioning

confidence: 99%

Clogging Behaviors in PVD and Their Evaluation Criteria for Dredged Mud Slurry

Bao,

Guo,

Dong

et al. 2023

Water

View full text Add to dashboard Cite

During the consolidation period of vacuum preloading drainage of dredged mud slurry, the clogging behaviors of the filter drainage structural layers and the core boards of prefabricated vertical drains (PVD) determine the drainage capacities of PVD. However, currently, there is a lack of comprehensive research on the evaluation criteria for these two clogging behaviors. Therefore, based on typical dredged mud slurry, typical geomembranes, and raw material core boards with different bending forms, relevant macro and micro-scale experimental studies have been carried out in this study. The research results show that (1) with the application of the gradient ratio test method, the clogging behaviors of filter membranes of PVD under graded vacuum preloading can be effectively simulated. Also, in the design of graded vacuum preloading, characteristics of equivalent pore sizes and pore structures should be emphasized to investigate the suitability of filtration and drainage performance of PVD filter membranes. (2) The compressive yield strength of core board grooves is a key factor influencing the reduction rate of flow capacity. The reduction rate of flow capacity and well resistance increment can be used as comprehensive indicators reflecting the clogging behaviors of core boards, while the bending angles and bending rates of core boards can be used as specific technical indicators. (3) The proposed clogging evaluation criteria for PVD are as follows: a filter membrane gradient ratio (GR) > 4.0, a core board bending rate >60% and a core board bending angle < 45°, or a reduction rate of flow capacity of bending drainage board > 90% or well-resistance increment > 9. Also, these criteria can be incorporated into the control indicators for drainage performance of PVD used in such types of foundations.

show abstract

A new analytical model to predict the effect of suction removal on vacuum preloading of fine copper tailings

Ahmadi

Bazaz

2023

Engineering Geology

View full text Add to dashboard Cite

Efficiency of Vacuum Preloading on Consolidation Behaviour of Cochin Marine Clay

Cited by 6 publications

References 3 publications

Studies on Characteristics, Applications and Strength Improvement of Marine Clay: A Review

Studies on Characteristics, Applications and Strength Improvement of Marine Clay: A Review

Clogging Behaviors in PVD and Their Evaluation Criteria for Dredged Mud Slurry

A new analytical model to predict the effect of suction removal on vacuum preloading of fine copper tailings

Contact Info

Product

Resources

About