نتایج جستجو برای: confining pressure

تعداد نتایج: 412023  

Journal: :Journal of the Mining and Metallurgical Institute of Japan 1985

Journal: :Nature 2021

The mechanical properties of chain mail have been revisited. findings reveal that, under confining pressure, chain-mail-inspired materials can switch from pliable to stiff structures that outstanding load-bearing capacities. Pliable undergo a jamming transition.

2012
Alberto Roman Goodarz Ahmadi Kathleen A. Issen Duane H. Smith

An elastic-plastic model was developed to describe the deformation and permeability of fractured rocks under confining pressure. Elastic and elastic-plastic contact models were used in the model to analyze the deformations of a representative element containing a single fracture under various confining pressures. The present work utilized elements from contact mechanics and viscous flows to der...

2016
Junbao Wang Xinrong Liu Baoyun Zhao Zhanping Song Jinxing Lai

In order to investigate the mechanical properties of lime mudstone, conventional triaxial compression tests under different confining pressures (0, 5, 15 and 20 MPa) are performed on lime mudstone samples. The test results show that, from the overall perspective of variation law, the axial peak stress, axial peak strain and elastic modulus of lime mudstone tend to gradually increase with increa...

Journal: :Journal of the Mining and Metallurgical Institute of Japan 1982

Journal: :Journal of the Mining and Metallurgical Institute of Japan 1980

Journal: :international journal of civil engineering 0
a.a. heshmati assistant professor, school of civil engineering, iran university of science and technology a.r. tabibnejad ph.d. student, school of civil engineering, iran university of science and technology h. salehzadeh assistant professor, school of civil engineering, iran university of science and technology s. hashemi tabatabaei assistant professor, department of geotechnical engineering, road, housing & urban development research center

to investigate the saturation induced collapse deformation behavior of rockfill material, a set of large-scale triaxial tests were conducted in saturated and dry-saturated conditions. specimens were tested under various confining pressures. for dry-saturated tests, specimens were sheared in various stress levels. results of all dry saturated tests indicate a sudden reduction in the specimen vol...

2016
Minoru Sato Masaji Kato Manabu Takahashi

The evaluation of hydraulic constants is generally one of the main components of reservoir engineering projects such as the development of radioactive waste disposal sites or the construction of underground CO2 storage. In the example presented here, flow pump experiments were conducted for the Horonobe mudstone to evaluate specific storage and hydraulic conductivity. The flow pump experiments ...

2012
Yang Gu Wenlong Ding Shuai Yin Shaogui Deng Yunyun Hu Dong Chen Jixin Deng Shangxu Wang Xiucheng Wei Zhou Feng Li Juan

In order to study the impact of microfractures on the elastic wave velocity, multi-azimuth elastic wave velocity experiments were performed with coal rock samples under a confining pressure similar to the one in the buried coal strata of the Qinshui basin. The results indicate that (1) the microfractures in coal rock reduce the elastic wave velocity. In the experiments, the velocity was increas...

1998
CHRISTIAN SCHMIDT I-MING CHOU ROBERT J. BODNAR WILLIAM A. BASSETT

The hydrothermal diamond-anvil cell (HDAC) was employed as a pressurized fluid inclusion heating stage to determine temperatures of phase transitions in synthetic fluid inclusions in quartz. Using this technique, the common problem of decrepitation or stretching of inclusions having high internal pressures was eliminated. Homogenization temperatures of pure H2O synthetic inclusions determined i...

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