Master environmental control and mine system design simulator for underground coal mining. Volume V. Subsidence subsystem. Final report

Technical Report · Sun Jun 30 04:00:00 EDT 1974

OSTI ID:7223787

Manula, C B; Mozumdar, B; Jeng, D K

This report is volume 5 of an 11-volume report on a dynamic general purpose computer simulation model for underground coal mining. This volume describes the subsidence subsystem of the Master Design Simulator. This subsystem uses the finite method to simulate ground movement caused by an advancing mining face in an underground coal mine. The model is structured around the concept that the ground mass is a layered media of different thicknesses and material properties. Gob areas are considered to be unfilled with broken rock at the beginning of mining. After mining starts, the gob areas are filled with broken material which provides resistance to the lowering of the overlying strata. The model is tied to the geology and reserves subsystem, but it can also operate as a free-standing routine. A case study is presented illustrating the application of the model. A detailed user's manual, including a program listing, is included in the appendices. (GRA)

• Research Organization: Pennsylvania State Univ., University Park (USA). Coll. of Earth and Mineral Sciences
• OSTI ID: 7223787
• Report Number(s): PB-255425
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
012000* -- Coal
Lignite
& Peat-- Mining
COAL MINING
COMPUTER CALCULATIONS
COMPUTER CODES
FINITE ELEMENT METHOD
GROUND SUBSIDENCE
MINING
NUMERICAL SOLUTION
SIMULATION
UNDERGROUND MINING