Coupled thermo-mechanical and poro-mechanical response evaluations associated with underground coal conversion. Final report, June 1982-December 1985

Technical Report · Tue Apr 01 00:00:00 EST 1986

OSTI ID:5548515

Advani, S H; Lee, J K; Min, O K; Chen, S M; Tseng, Y P; El Rafei, Al; Aboustit, B L; Chen, K S; Kitamura, M; So, J Y

Research investigations on hygrothermomechanical response modeling associated with underground coal conversion processes are reported. In particular, stress mediated cavity shapes and subsidence profiles for several field experiments are evaluated from the developed thermostructural models. These finite element codes utilize temperature dependent material properties with different constitutive characterizations, depending on the desired predictive capabilities and field applications. On the basis of the conducted thermo-elastic, thermo-elastoplastic, thermal consolidation, cavity spalling model, and parametric sensitivity simulations, criteria related to UCC site selection, cavity roof, and subsidence response prediction are identified and discussed. 15 refs., 11 figs.

• Research Organization: Ohio State Univ., Columbus (USA). Dept. of Engineering Mechanics
• DOE Contract Number: AS20-82LC10886
• OSTI ID: 5548515
• Report Number(s): DOE/LC/10886-2048; ON: DE86001092
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
CAVITIES
GEOMETRY
GROWTH
IN-SITU GASIFICATION
GROUND SUBSIDENCE
SITE SELECTION
COAL
COAL GASIFICATION
FINITE ELEMENT METHOD
FORECASTING
MATHEMATICAL MODELS
MECHANICAL PROPERTIES
OVERBURDEN
ROCKS
STRESSES
TEMPERATURE DEPENDENCE
TEMPERATURE EFFECTS
CARBONACEOUS MATERIALS
ENERGY SOURCES
FOSSIL FUELS
FUELS
GASIFICATION
IN-SITU PROCESSING
MATERIALS
MATHEMATICS
NUMERICAL SOLUTION
PROCESSING
THERMOCHEMICAL PROCESSES
010404* - Coal
Lignite
& Peat- Gasification