Consolidation Clay Radial

The Radial Consolidation of Clay Soils | Géotechnique

25-5-2015· Synopsis. The radial consolidation theory of Barron (1948) and McKinlay (1961) has been extended to take account of smear at the drainage boundaries, a decreasing permeability and compressibility and non-linear structural viscosity for an homogeneous anisotropic clay.

Radial consolidation of PVD-Installed normally ...

Fig. 9 shows the variation of average degree of radial consolidation in PVD-installed soft deposit according to disturbance degree of hydraulic conductivity caused by PVD installation (α = k h w / k h). In agreement with Nguyen and Kim (2018), the results indicated that degree of radial consolidation reduced as the α value decreased.

Laboratory study on radial consolidation and deformation ...

Laboratory study on radial consolidation and deformation in clay reinforced with stone columns. Ana Cimentada, a Almudena Da Costa, a Jorge Cañizal, a César Sagaseta a. a Geotechnical Engineering Group, Department of Ground Engineering and Materials Science, University of Cantabria, Avda. de Los Castros, s/n, 39005, Santander, Spain.

Radial consolidation of clay using compressibility indices ...

Request PDF | Radial consolidation of clay using compressibility indices and varying horizontal permeability | A system of vertical drains with surcharge load to accelerate consolidation by ...

Consolidation of a Clay Cylinder with External Radial ...

The rate of consolidation for a clay cylinder with external radial flow of water is usually analyzed by the solution, which is presented by I. Da Silveira as a solution of the consolidation equation of Terzaghi in radial case, independent of the deformation condition of a clay cylinder.

Radial consolidation of clay using compressibility indices ...

RADIAL CONSOLIDATION OF CLAY USING COMPRESSIBILITY INDICES AND VARYING HORIZONTAL PERMEABILITY Buddhima Indraratna PhD, DIC, MSc (Lond.), FIEAust., FASCE Professor of Civil Engineering, Faculty of Engineering, University of Wollongong, Wollongong City, NSW 2522, Australia Tel: +61-2-4221-3046; Fax: +61-2-4221-3238 E-mail: [email protected]

Nonlinear Radial Consolidation Analysis of Soft Soil with ...

This paper presents analytical solutions for nonlinear radial consolidation of soft soil with vertical drains under various cyclic loadings. By considering the ...

(PDF) Theoretical Equations of Vertical and Radial ...

In radial consolidation, ... On the other hand, no secondary compression may arise during primary consolidation when a clay stays in an apparently over-consolidated state. Read more.

Horizontal Coefficient of Consolidation of Soft Bangkok Clay

SEAH ET AL. ON SOFT BANGKOK CLAY 3 FIG. 2—Relationship among α, β, and n. (1948) to determine the horizontal coefficients of consolidation and permeability under radial flow condition. For CRS tests with radial drainage, the horizontal coefficient of permeability can be estimated from the following equation: k h = α v pγ wr 2 e u bH (9)

UNDAMENTALS OF ONSOLIDATION - uml.edu

Revised 03/2013 Slide 2 of 74 14.330 SOIL MECHANICS Consolidation CLAY SAND SAND DEPTH (Vertical Stress Increase) after Figure 7.1a. Das FGE (2005). At Time of Initial Loading (t = 0) Pore water takes initial change in

Radial consolidation of clay using compressibility indices ...

Request PDF | Radial consolidation of clay using compressibility indices and varying horizontal permeability | A system of vertical drains with surcharge load to accelerate consolidation by ...

Radial consolidation of clay using compressibility indices ...

The conventional radial consolidation theory (including smear and well resistance) has been commonly used to predict the behaviour of vertical drains in soft clay. Its mathematical formulation is based on the small strain theory; and for a given stress range, a constant volume compressibility ( m v ) and a constant coefficient of horizontal permeability ( k h ) are assumed.

Radial consolidation of clay using compressibility indices ...

The conventional radial consolidation theory (including smear and well resistance) have been commonly employed to predict the behaviour of vertical drains in soft clay. Its mathematical formulation is based on the small strain theory, and for a given stress range, a constant volume compressibility (mv) and a constant coefficient of lateral permeability (kh) are assumed.

consolidation clay radial - stavrekopraha.cz

The Radial Consolidation of Clay Soils Géotechnique. 25/05/2015 Synopsis The radial consolidation theory of Barron (1948) and McKinlay (1961) has been extended to take account of smear at the drainage boundaries, a decreasing permeability and compressibility and non-linear structural viscosity for an homogeneous anisotropic clay.

A large-strain radial consolidation theory for soft clays ...

A large-strain radial consolidation theory for soft clays improved by vertical drains X. GENG and H.-S. YU† A system of vertical drainswith combinedvacuum and surcharge preloading is an effective solution for promoting radial flow, accelerating consolidation. However, when a mixture of soil and water is

Consolidation of Soft Clays through Radial Flow Using ...

Shah, M.V., Shroff, A.V.: Effect of ratio of influence zone and type of vertical drain on consolidation of soft clay due to radial flow. In: Proc. Fourth International Conference on Soft- Soil Engineering, Canadian Geotechnical Society, University of Alberta, Canada, vol. I, pp. 765–773 (2006) Google Scholar

CONSOLIDATION CHARACTERISTICS OF KAOLINITIC CLAY …

Consolidation characteristics of kaolinitic clay through radial drainage using geometrical vertical sand drains 0 20 40 60 80 100 0.1 10 1000 (1-Ur/Uo)% Time in min r1 r2 r3 Fig. 4 Dissipation of excess pore water pressure vs. log’t’ in min for three radial points at 160KPa (n=11.04, bsd) 0 20 40 60 80 100 0.1 1 10 100 1000 10000 (1-Ur/Uo ...

RADIAL CONSOLIDATION OF LIGHTLY OVERCONSOLIDATED …

Radial consolidation of lightly OC Clays ³ and higher values of W ³ e w e w r r o f r r o s e e r dr e e r dr U S S 2 2 (8) with eo e PCc log>@1 SIR(1 W) for OC phase, (9) ¼ º « ¬ ª ¿ ¾ ½ ¯ ® ­ OCR SIR W eo e Cc OCR (1) Plog log for NC

Horizontal Coefficient of Consolidation of Soft Bangkok Clay

SEAH ET AL. ON SOFT BANGKOK CLAY 3 FIG. 2—Relationship among α, β, and n. (1948) to determine the horizontal coefficients of consolidation and permeability under radial flow condition. For CRS tests with radial drainage, the horizontal coefficient of permeability can be estimated from the following equation: k h = α v pγ wr 2 e u bH (9)

10. CONSOLIDATION - University of Melbourne

10.3 CONSOLIDATION AS A SEEPAGE PROBLEM The seepage of water from the soil during consolidation may be represented by means of a head diagram of the type shown in Fig. 5.5. The problem will be illustrated for the situation shown in Fig. 10.5., in which a compressible clay is sandwiched between two relatively

CONSOLIDATION CHARACTERISTICS OF KAOLINITIC CLAY …

Consolidation characteristics of kaolinitic clay through radial drainage using geometrical vertical sand drains 0 20 40 60 80 100 0.1 10 1000 (1-Ur/Uo)% Time in min r1 r2 r3 Fig. 4 Dissipation of excess pore water pressure vs. log’t’ in min for three radial points at 160KPa (n=11.04, bsd) 0 20 40 60 80 100 0.1 1 10 100 1000 10000 (1-Ur/Uo ...

THE RADIAL CONSOLIDATION OF CLAY SOILS - trid.trb.org

the radial consolidation of clay soils. the radial consolidation theory of barron (1948) and mckinlay (1961) has been extended to take account of smear at the drainage boundaries, a decreasing permeability and compressibility, and non-linear structural viscosity for an homogeneous anisotropic clay.

Comparison of Radial Consolidation Behavior of Clay …

"Comparison of Radial Consolidation Behavior of Clay under Three Types of Cyclic Loading". Civil Engineering Infrastructures Journal , 51, 1, 2018, 17-33. doi: 10.7508/ceij.2018.01.002 HARVARD

(PDF) Radial consolidation of clay using compressibility ...

Radial consolidation of clay using compressibility indices and varying horizontal permeability

"Radial consolidation of clay using compressibility ...

Radial consolidation of clay using compressibility indices and varying horizontal permeability. Canadian Geotechnical Journal, 42 1330-1341. Abstract. A system of vertical drains, with surcharge load to accelerate consolidation by shortening the drainage path, is one of the most popular methods of soft ground improvement.

Radial consolidation of clay using compressibility indices ...

The conventional radial consolidation theory (including smear and well resistance) have been commonly employed to predict the behaviour of vertical drains in soft clay. Its mathematical formulation is based on the small strain theory, and for a given stress range, a constant volume compressibility (mv) and a constant coefficient of lateral permeability (kh) are assumed.

Radial consolidation of clay using compressibility indices ...

The conventional radial consolidation theory (including smear and well resistance) has been commonly used to predict the behaviour of vertical drains in soft clay. Its mathematical formulation is based on the small strain theory; and for a given stress range, a constant volume compressibility (mv) and a constant coefficient of horizontal permeability (kh) are assumed.

Consolidation behavior of clayey soils under radial ...

For Barren's degree of consolidation, U-r, versus the time factor, T-r, relationship for soils undergoing consolidation with radial drainage for the equal vertical strain condition, a simple method has been developed to determine the value of the coefficient of consolidation with radial drainage c(r). Theoretical log(10)(d(e)(2)/t) versus U-r curves where d(e) is the diameter of influence and ...

Consolidation for Radial Drainage underTime-Dependent ...

Four different loading rates were applied in the consolidation tests on three types of remolded clay with various plasticity indices tostudy the behavior of radial consolidation. The variation of the coefficient of radial consolidation versus effective stress was determined byexplicitly performing falling head radial permeability tests at ...

Consolidation theory - slideshare.net

Consolidation theory 1. Slide 1 of 74Revised 03/2013 14.330 SOIL MECHANICS Consolidation FUNDAMENTALS OF CONSOLIDATION CLAY SAND SAND DEPTH (Vertical Stress Increase) CONSOLIDATION: Volume change in saturated soils caused by …