Fracture testing in modes I, II, and III on escabrosa limestone

K. Roth, John M Kemeny, A. Cheesman

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

An on-going project at the University of Arizona is using Kartchner Caverns in Benson, Arizona as a natural analog to study time-dependent rock failure with subcriticai crack growth modeling. Various material properties of the Escabrosa limestone composing the caverns are required for input into the damage model. Central among these properties are the subcriticai crack growth parameters n and A, which can be calculated from modes I, II, and III fracture toughness tests conducted at different loading rates. This paper presents the results of modes I, II, and III testing on Escabrosa limestone, providing the material properties necessary for the larger goal of modeling breakdown in Kartchner Caverns and applying the model to the long-term stability of rock excavations. Additionally, fracture test results are compared with a previous study by Tae Young Ko at the University of Arizona, which tested Coconino sandstone and determined that the subcriticai crack growth parameters were consistent among modes. This study expands upon Ko's work by adding the characterization of a second rock material in all three modes; preliminary results indicate that for Escabrosa limestone the subcriticai crack growth parameters are not consistent among modes.

Original languageEnglish (US)
Title of host publication49th US Rock Mechanics / Geomechanics Symposium 2015
PublisherAmerican Rock Mechanics Association (ARMA)
Pages2765-2770
Number of pages6
Volume4
ISBN (Print)9781510810518
StatePublished - 2015
Event49th US Rock Mechanics / Geomechanics Symposium - San Francisco, United States
Duration: Jun 29 2015Jul 1 2015

Other

Other49th US Rock Mechanics / Geomechanics Symposium
CountryUnited States
CitySan Francisco
Period6/29/157/1/15

Fingerprint

Fracture testing
Calcium Carbonate
limestone
Crack propagation
cavern
crack
cracks
Rocks
rocks
Materials properties
rock
growth modeling
natural analog
Time and motion study
fracture toughness
Sandstone
loading rate
Excavation
excavation
Fracture toughness

ASJC Scopus subject areas

  • Geophysics
  • Geochemistry and Petrology

Cite this

Roth, K., Kemeny, J. M., & Cheesman, A. (2015). Fracture testing in modes I, II, and III on escabrosa limestone. In 49th US Rock Mechanics / Geomechanics Symposium 2015 (Vol. 4, pp. 2765-2770). American Rock Mechanics Association (ARMA).

Fracture testing in modes I, II, and III on escabrosa limestone. / Roth, K.; Kemeny, John M; Cheesman, A.

49th US Rock Mechanics / Geomechanics Symposium 2015. Vol. 4 American Rock Mechanics Association (ARMA), 2015. p. 2765-2770.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Roth, K, Kemeny, JM & Cheesman, A 2015, Fracture testing in modes I, II, and III on escabrosa limestone. in 49th US Rock Mechanics / Geomechanics Symposium 2015. vol. 4, American Rock Mechanics Association (ARMA), pp. 2765-2770, 49th US Rock Mechanics / Geomechanics Symposium, San Francisco, United States, 6/29/15.
Roth K, Kemeny JM, Cheesman A. Fracture testing in modes I, II, and III on escabrosa limestone. In 49th US Rock Mechanics / Geomechanics Symposium 2015. Vol. 4. American Rock Mechanics Association (ARMA). 2015. p. 2765-2770
Roth, K. ; Kemeny, John M ; Cheesman, A. / Fracture testing in modes I, II, and III on escabrosa limestone. 49th US Rock Mechanics / Geomechanics Symposium 2015. Vol. 4 American Rock Mechanics Association (ARMA), 2015. pp. 2765-2770
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