Lateral earth pressure at rest and compressibility of municipal solid waste

2000 ◽  
Vol 37 (6) ◽  
pp. 1157-1165 ◽  
Author(s):  
A O Landva ◽  
A J Valsangkar ◽  
S G Pelkey
Keyword(s):  
Municipal Solid Waste ◽  
Solid Waste ◽  
Laboratory Testing ◽  
Earth Pressure ◽  
Split Ring ◽  
One Dimensional ◽  
Large Size ◽  
Lateral Earth Pressure ◽  
Marine Clays ◽  
Compressibility Characteristics

The paper presents the results of laboratory testing of municipal solid waste samples subjected to one-dimensional compression with measurement of lateral stresses. The details of a large-size split-ring apparatus specially developed for this research are presented along with the data on earth pressure at rest and compressibility characteristics. The results show the influence of fibre content on the coefficient of earth pressure at rest in waste materials. The "delayed compression" behaviour observed in the laboratory is shown to be similar to the concepts developed by Bjerrum for normally consolidated sensitive marine clays. Issues such as validity of laboratory testing and sample-size effects are also discussed.Key words: earth pressure at rest, municipal solid waste, compressibility.

One-dimensional model for municipal solid waste (MSW) settlement considering coupled mechanical-hydraulic-gaseous effect and concise calculation

2011 ◽  
Vol 31 (12) ◽  
pp. 2473-2483 ◽  
Author(s):  
Xiaodong Liu ◽  
Jianyong Shi ◽  
Xuede Qian ◽  
Yadong Hu ◽  
Gongxun Peng
Keyword(s):  
Municipal Solid Waste ◽  
Solid Waste ◽  
Dimensional Model ◽  
One Dimensional

Total Earth Pressure Cells for Measuring Loads in a Municipal Solid Waste Landfill

2011 ◽  
Vol 30 (1) ◽  
pp. 95-105 ◽  
Author(s):  
Jason Timmons ◽  
Young Min Cho ◽  
Timothy Townsend ◽  
Nicole Berge ◽  
Debra Reinhart
Keyword(s):  
Municipal Solid Waste ◽  
Solid Waste ◽  
Earth Pressure ◽  
Municipal Solid Waste Landfill ◽  
Waste Landfill

K0 of sand measured by a plane-strain apparatus

2007 ◽  
Vol 44 (8) ◽  
pp. 1006-1012 ◽  
Author(s):  
Dariusz Wanatowski ◽  
Jian Chu
Keyword(s):  
Linear Relationship ◽  
Plane Strain ◽  
Void Ratio ◽  
Earth Pressure ◽  
Triaxial Tests ◽  
Preparation Methods ◽  
One Dimensional ◽  
Lateral Earth Pressure ◽  
Compression Behaviour ◽  
The One

Experimental results are presented in this note to study the coefficient of lateral earth pressure at rest, K0, of sand measured using a plane-strain apparatus. The data are also compared with the K0 measured by triaxial K0 consolidation tests. The test data show that the K0 values measured for specimens prepared using the water sedimentation method vary little with the void ratio of the soil, and therefore do not agree with the K0 values calculated using Jaky’s equation, which uses the peak friction angles obtained from either plane-strain or triaxial tests. The K0 values measured for specimens prepared using the moist tamping method follow a linear relationship with the void ratio. However, this relationship does not agree with Jaky’s equation either. The K0 values obtained from tests on the specimens prepared using the two different preparation methods are different, which may reflect the influence of soil fabrics or structures on the one-dimensional compression behaviour of soil.

scholarly journals Evolution of the coefficient of lateral earth pressure at rest with interparticle friction: a numerical study

2021 ◽  
Vol 249 ◽  
pp. 08015
Author(s):  
Hoang C Nguyen
Keyword(s):  
Discrete Element Method ◽  
Numerical Study ◽  
Earth Pressure ◽  
Normal Contact ◽  
Normal Contact Force ◽  
One Dimensional ◽  
Lateral Earth Pressure ◽  
Sample Density ◽  
Confining Pressures ◽  
Interparticle Friction

The grain-scale nature of evolution of the coefficient of lateral earth pressure at rest (K0) with interparticle friction (µp) is poorly understood. This study aims to use discrete element method simulations of vertical one-dimensional compression on both face centred cubic (FCC) samples and random monodisperse (RM) samples to link K0 and µp, and the results show that K0 increases with reductions in interparticle friction. Although K0 is dependent upon the sample density, patterns of evolutions with strain levels are likely to be unchanged with initial confining pressures. The stress-induced fabric becomes more anisotropic for samples with high values of the interparticle friction. The percentage of particles with a high value of the normal contact force increases with increasing strain levels as the interparticle friction increases in the simulations.

Effect of particle fabric on the coefficient of lateral earth pressure observed during one-dimensional compression of sand

2013 ◽  
Vol 50 (5) ◽  
pp. 457-466 ◽  
Author(s):  
Sheri Northcutt ◽  
Dharma Wijewickreme
Keyword(s):  
Relative Density ◽  
Stress Measurement ◽  
Earth Pressure ◽  
Friction Angle ◽  
Fraser River ◽  
Initial Particle ◽  
River Sand ◽  
One Dimensional ◽  
Lateral Earth Pressure ◽  
The One

The effect of initial particle fabric on the one-dimensional compression response of Fraser River sand was investigated. One-dimensional compression with lateral stress measurement was carried out on reconstituted Fraser River sand specimens using an instrumented oedometer. Laboratory specimens were reconstituted by air pluviation, tamping, and vibration and were prepared with an initial relative density ranging from medium loose to very dense. For Fraser River sand in one-dimensional compression, air-pluviated specimens yielded the highest values for the coefficient of lateral earth pressure at rest (Ko), tamped specimens produced the lowest Ko values, and vibrated specimens produced intermediate Ko values. The results from the present study demonstrate that specimens resulting from different laboratory reconstitution methods (i.e., different initial particle fabrics) exhibit different one-dimensional compression responses and produce different Ko values. A “fabric factor” was introduced to account for the effect of the initial particle fabric on the measured coefficient of lateral earth pressure at rest. Using the fabric factor, the constant volume friction angle, and the specimen relative density, a new empirical equation defining the coefficient of lateral earth pressure at rest during normally consolidated loading is proposed.

Laboratory testing of a densified municipal solid waste in Beijing

2013 ◽  
Vol 20 (7) ◽  
pp. 1953-1963 ◽  
Author(s):  
Yu-xin Jie ◽  
Wen-jie Xu ◽  
Danzeng Dunzhu ◽  
Yi-feng Wei ◽  
Tao Peng ◽  
...  
Keyword(s):  
Municipal Solid Waste ◽  
Solid Waste ◽  
Laboratory Testing
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