A Method for Plane Strain Testing of Sand

Mochizuki, Akitoshi; Min, Cai; Takahashi, Shinichi

doi:10.2208/jscej.1993.475_99

Cited by 2 publications

(6 citation statements)

References 11 publications

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“…Compared to the specimen under the tri axial of test NR, the bi axial specimen of test NC had higher shear strength along the vertical strain. This is in consistent with the founding of Mochizuki et al [16].…”

Section: Test Results and Discussionsupporting

confidence: 94%

“…Compared to the "intact" specimen testing without rigid wall of test NR, not only had higher peak stress, the specimen of test NC also had higher shear strength along the vertical strain. This is in well agreement with the founding of Mochizuki et al [16]. Figure 4 presents the influence of matric suction on volume change of the specimen.…”

Section: Test Results and Discussionsupporting

confidence: 91%

“…In addition to foundations, retaining walls and cuts in slope and other light structures are generally designed such that they are under unsaturated conditions as they remain above the water table. Mochizuki et al [16] reported that when soil is tested under plane strain conditions, it, in general, exhibits a higher compressive strength and lower axial strain. Most of the plane strain apparatus used by previous researchers [3,10,11,16,19], had the common feature of using rigid walls and tie-rods to impose a zero strain boundary condition in one of the principle axes.…”

Section: Introductionmentioning

confidence: 99%

“…Mochizuki et al [16] reported that when soil is tested under plane strain conditions, it, in general, exhibits a higher compressive strength and lower axial strain. Most of the plane strain apparatus used by previous researchers [3,10,11,16,19], had the common feature of using rigid walls and tie-rods to impose a zero strain boundary condition in one of the principle axes. This method was found to be satisfactory, and friction between the rigid wall and test specimen could be adequately mitigated.…”

Section: Introductionmentioning

confidence: 99%

“…The Behaviour of fined grained sands tested under plane conditions has been reported [9,10,12,16,17] and the plane strain testing of clay has been initiated recently [3][4][5]14]. However published data of such tests especially for hard clay material and unsaturated soil are very limited.…”

Section: Introductionmentioning

confidence: 99%

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The behaviour of unsaturated compacted clay under plane strain condition

Fauziah¹,

Nikraz²

2008

WIT Transactions on the Built Environment

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The behaviour of unsaturated soil is quite different from those of saturated soil because of the influence of suction. Although soils are generally assumed fully saturated below the groundwater table, they may be semi saturated near the state of full saturation under certain conditions. The situation of partial saturation may be caused by several factors, such as variation of water table level due to natural or manmade processes. This study was undertaken to delineate the effects of soil water suction on the behaviour of kaolin clay under plane strain condition, as more geotechnical problems in the field such as slope failure, earth retaining structures, and shallow foundation basically occur in plane strain conditions rather than tri axial condition. The biaxial apparatus, which was used in this study, is a modification of the conventional tri axial apparatus. Cell pressure from the tri axial compression test and a rigid loading platen are used to apply the minor (σ 3 ) and major (σ 1 ) principle stresses, respectively, to the clay specimen. The specimen is mounted inside the device, which fully restrains any out-of-plane deformation by the use of a pair of rigid perspex wall. The volume change of the sample was measured by local strain devices and laser sensor while the water volume change was recorded by a volume gauge. Results from the tests were compared with the theoretical analysis within the elasto-plastic critical state model for unsaturated soil.

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Section: Test Results and Discussionsupporting

confidence: 94%

Section: Test Results and Discussionsupporting

confidence: 91%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

The behaviour of unsaturated compacted clay under plane strain condition

Fauziah¹,

Nikraz²

2008

WIT Transactions on the Built Environment

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Testing Unsaturated Soil for Plane Strain Conditions: A New Double Wall Biaxial Device

Schanz¹,

Alabdullah²

Springer Proceedings in Physics

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In geotechnical practice most soils are in unsaturated conditions, for instance the compacted soils used in several engineering constructions (such as earth dams, highways, embankments, and airport runways). In fact, testing the soil in unsaturated conditions is not common in soil mechanics laboratory. Plane-strain (biaxial) test is also not common in soil mechanics laboratory tests. Even though, in reality, the state of deformation of several structures (e.g., long retaining walls and strip foundations) is plane-strain state. The biaxial testing procedures are more complex compared to triaxial tests. Several researchers have extensively studied the strain localization in biaxial tests for dry or saturated soils. But there is no study concerning the effect of soil suction on the characteristics of shear bands in unsaturated conditions.

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A Method for Plane Strain Testing of Sand

Cited by 2 publications

References 11 publications

The behaviour of unsaturated compacted clay under plane strain condition

The behaviour of unsaturated compacted clay under plane strain condition

Testing Unsaturated Soil for Plane Strain Conditions: A New Double Wall Biaxial Device

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