Results 151 to 160 of about 33,535 (201)
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Identifying fatigue damage of mudded intercalations based on dynamic triaxial test
Engineering Geology, 2021Abstract Fatigue damage caused by cyclic dynamic loading may deteriorate strength parameters of mudded intercalations. This research work aimed at defining a new fatigue damage variable expression and revealing the fatigue damage evolution laws of mudded intercalations by conducting dynamic triaxial tests.
Changbin Yan +3 more
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Servo-controlled equipment for dynamic triaxial testing of soils
Géotechnique, 1972THIS NOTE OUTLINES THE DETAILS OF THE LATEST SERVOCONTROLLED HYDRAULIC TYPE OF MACHINE FOR SOIL TESTING. TWO IMPORTANT FEATURES OF THIS TYPE OF APPARATUS ARE THAT PROGRAMMED STRESS CHANGES WITH TIME CAN BE APPLIED WITHOUT BEING AFFECTED BY CHANGES IN SAMPLE BEHAVIOR DURING THE TEST, AND THAT ANY TYPE OF COMPLEX WAVEFORM OF LOADING CAN BE READILY ...
G. Cullingford +2 more
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Large triaxial test study on dynamic characteristics of round gravel
Arabian Journal of Geosciences, 2020A series of large-scale drained dynamic triaxial tests were conducted on Nanning saturated gravel soil to investigate dynamic characteristics. The effects of relative density, dynamic stress amplitude, and the number of load cycles on the pore pressure, accumulation strain, and stress–strain hysteresis loops of saturated round gravel soil were analyzed.
Shaokun Ma +4 more
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Dynamic soil property measurements during triaxial testing
Géotechnique, 1989Offshore site investigations are discussed, and a description is given of a method of measuring the compression wave velocity, the shear wave velocity, and hence G sub max (initial tangential shear modulus of a soil), simultaneously with the routine investigation of soil properties using the triaxial cell.
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Dynamic Triaxial Test Research of Stage Change of Cohesive Soil
Applied Mechanics and Materials, 2013With the STX-50 pneumatic-typed dynamic triaxial system, the undrained dynamic triaxial tests on the saturated cohesive soil are performed to study the dynamic strength properties. The changing process of the dynamic strength, backbone curve and the soil deformation of the cohesive soil under dynamic load are zoom analysis by stages to get their ...
Xiao Yang Rong +4 more
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Hopkinson Techniques for Dynamic Triaxial Compression Tests
2006A modified Hopkinson technique is developed to simultaneously load a sample in both the axial and radial directions. This is accomplished by using a composite incident-bar and a composite transmission-bar system. The incident-bar system consists of a large-diameter bar, followed by a small-diameter bar that fits inside a tube whose outside diameter is ...
Jacob Rome, Jon Isaacs, Sia Nemat-Nasser
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Dynamic Stress-Strain Relationship of Saturated Clay by Dynamic Triaxial Test
Advanced Materials Research, 2011Subgrade diseases are exposed more and more serious with raising speed of existing railway in wide range. Fro the complexity of dynamic stress-strain relationship of soil, dynamic triaxial test was used to analyze .the dynamic mechanics behavior under cyclic train load for saturated soft clay in Yangtze Delta region.
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Triaxial experiments are a common method for measuring shear strength. Usually the loading in the shear phase in these experiments are done at a quasi-static rate but in many real instances the loading is dynamic in nature. Therefore, a triaxial setup has been developed based on a Kolsky bar experimental technique to characterize the shear response of ...
Md. E. Kabir, Weinong W. Chen
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Md. E. Kabir, Weinong W. Chen
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Dynamic properties of polyurethane foam-sand mixtures using cyclic triaxial tests
Construction and Building Materials, 2016Abstract Reducing the static and seismic earth pressures on geotechnical structures, such as retaining walls, bridges abutments and buried pipes, using compressible materials is a novel idea which has received increased consideration during recent years.
Iman Golpazir +3 more
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Dynamic properties of Malan loess based on triaxial shear tests
Geological JournalMalan loess possesses unfavourable engineering mechanical properties that may vary depending on the geological context in which it exists. In the context of roadbed loading, the structural characteristics of the loess roadbed often result in uneven settlement, which significantly impacts transportation safety.
Haifeng Li +9 more
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