Geotechnical Engineering Commons^™

Mechanical Properties And Damage Constitutive Model Of Coal Under The Coupled Hydro-Mechanical Effect, Bo-Bo Li, Zhong-Hui Wang, Chong-Hong Ren, Yao Zhang, Jiang Xu, Jian-Hua Li

Rock and Soil Mechanics

In order to explore the impact of moisture on the mechanical properties of coal, the triaxial compression tests of raw coal with different moisture contents are carried out by using the triaxial servo-controlled seepage equipment for thermal-hydro- mechanical coupling in coal containing methane. Based on elastic damage mechanics, the damage variables of coal with different moisture contents are deduced, and the damage constitutive model of coal under hydro-mechanical coupling is established, the deformation characteristics of coal with different moisture contents are obtained. The results show that: (1) the deformation and failure process of coal under different moisture contents are similar, …

Simulations Of Temperature Effects On Seepage And Deformation Of Coal Micro- Structure Based On 3d Ct Reconstruction, Gang Wang, Xiang-Jie Qin, Cheng-Hao Jiang, Zhen-Yu Zhang

Rock and Soil Mechanics

In order to investigate the influence of temperature in deep coal mining area on coal seepage and pore fracture structure deformation, 3D CT reconstruction technology and ANSYS were used to simulate the process of conjugate heat transfer and thermal deformation of coal microstructure respectively. The conjugate heat transfer simulation results show that water was initially injected into the 80℃ coal wall at 20℃ was heated to 37.13℃ when it flows out. The temperature of the coal gradually decreases along the wall facing the fluid center. Pore fracture structure has an important influence on the velocity and the temperature of the …

Slides: Impacts Of Oil Shale On Carbon Emissions, Jeremy Boak

The Promise and Peril of Oil Shale Development (February 5)

Presenter: Dr. Jeremy Boak, Center for Oil Shale Technology & Research, Colorado School of Mines

43 slides

Slides: Promise Or Peril: Shale Oil, Energy, And The Region, Chase Huntley

The Promise and Peril of Oil Shale Development (February 5)

Presenter: Chase Huntley, Policy Adviser for Energy & Climate Change, The Wilderness Society

8 slides

Slides: The Peril Of Energy Usage, Mike Tupper

The Promise and Peril of Oil Shale Development (February 5)

Presenter: Mike Tupper, Executive Vice President, Composite Technology Development, Inc.

9 slides

Slides: The Elusive Bonanza, Randy Udall

The Promise and Peril of Oil Shale Development (February 5)

Presenter: Randy Udall, Co-founder, Association for the Study of Peak Oil-USA

62 slides

Slides: Water For Oil (Shale)?, Bart Miller

The Promise and Peril of Oil Shale Development (February 5)

Presenter: Bart Miller, Water Program Director, Western Resource Advocates

10 slides

Waste Or Wasted? Rethinking The Regulation Of Coalbed Methane Byproduct Water In The Rocky Mountains: A Comparative Analysis Of Approaches To Cbm Produced Water Quantity Legal Issues In Utah, New Mexico, Colorado, Montana And Wyoming, Thomas F. Darin

Coalbed Methane Development in the Intermountain West (April 4-5)

30 pages.

Contains 13 pages of references.

Coalbed Methane Development In Wyoming’S Powder River Basin, Diana Hulme

Coalbed Methane Development in the Intermountain West (April 4-5)

21 pages (includes color illustrations and maps).

Contains endnotes.