West Virginia University
Development of new protocols to evaluate the transverse loading of mine ventilation stoppings
Abstract
dc:description.abstractThe transverse loading requirement for stoppings as specified in the current Code of Federal Regulations is 39 psf. This measure is based on physical testing of a freestanding wall in accordance with ASTM E 72 specifications, where the dominant parameter is the tensile strength of the sealant. A new protocol based on rigid arching is proposed to determine the true transverse load capacity of stoppings. Arching is achieved by the restraint of the stopping against the mine roof and floor, whereby compressive forces are developed within the wall. A laboratory procedure using the NIOSH Mine Roof Simulator (MRS) to simulate rigid-arching of stoppings was developed and verified through full-scale in-mine tests. The rigid arching tests have demonstrated transverse load capacities more than an order of magnitude higher than the current 39-psf requirement. More importantly, the load capability is dependent on the physical properties of the block and not the sealant.
Degree
thesis:*- Name thesis:degree_name
- MS
- Level thesis:degree_level
- Thesis
- Discipline thesis:degree_discipline
- Mining Engineering
- Year dc:date.available
- 2004
Author and committee
dc:creator, dc:contributor.*- Author dc:creator
-
- Barczak, Thomas M.
- Contributors dc:contributor
-
- Syd S. Peng.
Subjects
dc:subject × 1Identifiers
dc:identifier.*- Identifier
- https://researchrepository.wvu.edu/etd/1528
- OAI identifier oai:identifier
- oai:researchrepository.wvu.edu:etd-2531