Modeling gap effects in jointed rock

Joints represent planes of discontinuity in homogeneous media. The purpose of this investigation is to model joints and determine the e\ufb00ects on waves as they propagate through joints in rock. Properties of interest include energy dissipation, energy transmission, and changes in peak stress and impulse as waves propagate through one or more joints. Rather than combining rock joints into the constitutive model of the parent rock as typically done, this research seeks to model joints discretely. By capturing the behavior of individual rock joints, discrete e\ufb00ects on wave propagation are gathered. The ability to lump multiple joints into one equivalent joint is also explored. The key result is that joints a\ufb00ect short duration pulses more than long duration pulses. A single equivalent joint transmits less energy than a set of multiple joints.

Name thesis:degree_name

Mechanical Engineering

Level thesis:degree_level

Masters

Discipline thesis:degree_discipline

Mechanical Engineering

Year

2012

Author dc:creator

• Baker, Tyler

Contributors dc:contributor

• Khraishi, Tariq
• Schreyer, Howard
• Sulsky, Deborah

• Joints (Geology)--Mathematical models
• Elastic wave propagation--Mathematical models.

Language dc:language

English

Identifier

https://digitalrepository.unm.edu/me_etds/55

OAI identifier oai:identifier

oai:digitalrepository.unm.edu:me_etds-1054