Design optimization in underground coal systems
Subtitle: section 1 -longwall mining system strata simulator and structural parameters of coal measure rocks; section 2 - design criteria for underground roof-truss support systems; section 3 - VENT-CONTRL
By: by C. Haycocks [et.al.]
Contributors: Haycocks, C; United States. Office of Coal Research; Virginia Polytechnic Institute and State University
Series: Research and development report -- no. 91, interim report no. 1; Research and development report (United States. Office of Coal Research) -- no. 91, interim report no. 1
Publisher: Office of Coal Research : for sale by the Supt. of Docs., U.S. Govt. Print. Off.
Published: 1974
Place of publication: Washington
Language: eng
Number of pages: 73
Subjects: Mining engineering; Pillaring (Mining); Mine ventilation
Notes: Interim report no. 1 for the period December 1973 to July 1974

Prepared for Office of Coal Research, Department of the Interior under contract no. 14-32-001-1231 by Virginia Polytechnic Institute and State University

Includes bibliographies