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Full-Text Articles in Engineering
Non-Linear, Elastic - Plastic Response Of Steel Fibre Reinforced Shotcrete To Uniaxial And Triaxial Compression Testing, Hla Aye Saw, Ernesto Villaescusa, Christopher R. Windsor, Alan G. Thompson
Non-Linear, Elastic - Plastic Response Of Steel Fibre Reinforced Shotcrete To Uniaxial And Triaxial Compression Testing, Hla Aye Saw, Ernesto Villaescusa, Christopher R. Windsor, Alan G. Thompson
Shotcrete for Underground Support XI
Understanding the complete stress-strain behavior of shotcrete is extremely important in ground support design; especially in cases where large deformations are expected such as around mine excavations at great depth. The application of non-linear numerical modeling to mining industry problems has increased in recent years. More realistic stress-strain response and failure criteria in complex plasticity models are also being used in the design of the larger, deeper mines. One of the factors to improve the reliability of numerical modeling is to properly define geotechnical parameters for both the rock mass and shotcrete surface support. Uniaxial and triaxial compression tests on …
Shear Strength Of Oil Palm Shell Foamed Concrete Beams, Hilmi Mahmud
Shear Strength Of Oil Palm Shell Foamed Concrete Beams, Hilmi Mahmud
Hilmi Mahmud
Four reinforced oil palm shell foamed concrete (OPSFC) beams were fabricated, and their shear behaviour was tested. The OPSFC has a target density of approximately 1600 kg/m3 and a 28-day compressive strength of about 20 MPa. Two beams were cast with shear reinforcements while the other two were cast without such reinforcements. For comparison, four reinforced normal weight concrete (NWC) beams were also cast. The beams that contained shear links failed in flexure mode, while those without links failed in shear mode. The experimental results indicated that the shear capacities of OPSFC beams without shear links are higher than those …
Tensile Strength And Failure Criterion Of Analog Lithophysal Rock, James A. Nott
Tensile Strength And Failure Criterion Of Analog Lithophysal Rock, James A. Nott
UNLV Theses, Dissertations, Professional Papers, and Capstones
This project determines the tensile strength of lithophysal analog rock and presents failure criteria that can be used by geotechnical engineers to evaluate underground structures in rock. The physical and mechanical properties that are related to the failure criterion, such as porosity, compressive strength and modulus of elasticity, are also discussed. Experimental tensile tests were made using direct uniaxial and indirect Brazilian tests. Three 4-inch specimens were fabricated and tested in direct uniaxial tensile tests using Hydro-Stone TB. The results showed that the elastic tensile modulus of elasticity was within two percent of existing data for the compressive modulus of …