Brendan Casey
Brendan Casey, Ph.D., P.E.
Senior Engineer
Civil Engineering
Natick

Dr. Casey specializes in geotechnical site investigations, geomechanics, construction induced vibrations, slope failures, stormwater management and site drainage. He has performed analysis on topics including subsidence, differential settlement, characterization of soil and rock behavior, as well as the effect of construction induced vibrations on nearby structures, such as those caused by pile driving or rock crushing. He has analyzed the stability of tailings dams and been involved in the causation analysis of tailings dam and natural slope failures. Dr. Casey has provided expert testimony on the functioning of a large stormwater management and detention system as well as on issues related site excavation.

Dr. Casey has evaluated the stability of retaining walls, soil displacements due to nearby pile driving, foundation settlement, as well as drained and undrained earth responses. Prior to joining Exponent, Dr. Casey was a research assistant in the Department of Civil and Environmental Engineering at the Massachusetts Institute of Technology (MIT). His doctoral research focused primarily on an experimental investigation into the strength and consolidation properties of clayey soils and mudrocks up to very high effectives stresses. His research also included the development of laboratory equipment, specifically a high pressure triaxial system together with auxiliary equipment for the testing of soils and soft rocks. He has developed models to estimate the permeability of mudrocks for situations in which field testing is infeasible and to predict horizontal stresses in deep basins based on sediment composition. He has assisted in teaching an undergraduate course on the mechanics of solids and soils, as well as a graduate level class on advanced laboratory testing of soil. He has also worked on a model to predict multi-phase fluid flow for conventional reservoir rocks.

CREDENTIALS & PROFESSIONAL HONORS

  • Ph.D., Civil and Environmental Engineering, Massachusetts Institute of Technology (MIT), 2014
  • M.S., Civil and Environmental Engineering, Massachusetts Institute of Technology (MIT), 2011
  • B.S., Civil and Environmental Engineering, National University of Ireland, 2009, First Class Honors
  • First prize winner of the Northeastern Geotechnical Graduate Research Symposium Abstract Competition, 2012

    Winner of the Institute of Civil Engineers (ICE) Graduates and Students Papers Competition, 2009

LICENSES & CERTIFICATIONS

Licensed Professional Engineer, Maine, #PE14381

Licensed Professional Engineer, Massachusetts, #53503

Blasting Certificate of Competency, Massachusetts, #BL-007253

Publications

Deirieh A, Casey B, Germaine JT, Guangping X. The integration of magnifications: A novel approach to obtain representative information about the pore space of mudrocks from SEM images. Applied Clay Science 2017; 154:73-82

Casey B, Germaine JT, Flemings PB, Fahy BP. In situ Stress State and Strength in Mudrocks. Journal of Geophysical Research 2016; 121(8): 5611–5623. doi:

Casey B, Germaine J, Abdulhadi N, Kontopoulos N, Jones C. Undrained Young’s Modulus of fine-grained soils. Journal of Geotechnical and Geoenvironmental Engineering 2015; 10.1061/(ASCE)GT.1943-5606.0001382.

Casey B, Germaine JT, Flemings PB, Fahy BP. Estimating horizontal stresses for mudrocks under one-dimensional compression. Marine and Petroleum Geology 2015; 65:178–186. http://dx.doi.org/10.1016/j.marpetgeo.2015.02.001

Casey B, Germaine JT. An evaluation of three triaxial systems with results from 0.1 to 100MPa. Geotechnical Testing Journal 2014; 37(6). DOI: 10.1520/GTJ20130178.

Casey B. The consolidation and strength behavior of mechanically compressed fine-grained sediments. Ph.D. thesis, Massachusetts Institute of Technology, Cambridge, MA, 2014.http://hdl.handle.net/1721.1/90039

Casey B, Germaine JT. The stress dependence of shear strength in fine-grained soils and correlations with liquid limit. Journal of Geotechnical and Geoenvironmental Engineering 2013; 139(10):1709–1717. doi: 10.1061/(ASCE)GT.1943-5606.0000896

Casey B, Germaine JT, Flemings PB, Reece JS, Gao B, Betts W. Liquid limit as a predictor of mudrock permeability. Journal of Marine and Petroleum Geology 2013; 44:256–263. http://dx.doi.org/10.1016/j.marpetgeo.2013.04.008

Casey B. The significance of specimen end restraint in high pressure triaxial testing of cohesive soil. S.M. thesis, Massachusetts Institute of Technology, Cambridge, MA, 2011. http://hdl.handle.net/1721.1/66857

Presentations


Vytiniotis A, Casey B, Sykora DW. Lateral soil movements due to pile driving: a case study in soft clays. International Foundations Congress and Equipment Expo, Orlando, FL. March 5-10, 2018.

Sykora DW, Casey B, Vytiniotis A. Principles of construction vibrations. Seismic and Construction-Induced Vibrations: State of the Art and Practice One-Day Seminar, BSCES Geo-Institute, Tufts University, Medford, MA. January 27, 2018.

Casey B. The consolidation and strength behavior of mechanically compressed fine-grained sediments. University of Massachusetts, Amherst, MA. March 2, 2018.

Casey B, Germaine JT, Fahy BP. Effects of salinity on the compression and shear behavior of offshore Gulf of Mexico sediments. Geotechnical Frontiers, GSP 280, pp. 306-316. Orlando, FL, March 12-15, 2017.

Casey B, Germaine JT, Reynolds RT. The strength behavior of resedimented Presumpscot Clay and a comparison with intact behavior. 2nd Symposium on the Presumpscot Formation: Advances in Geotechnical, Geologic, and Construction Practice, Landon ME, Nickerson C (eds), Portland, ME, October 28, 2015.

Casey B. The link between strength properties and horizontal stresses in mudrocks, and their evolution with stress level. UT GeoFluids Annual Meeting, Austin, TX, February 26, 2015.

Casey B, Germaine JT, Flemings PB, Fahy BP. Variations in shear strength properties of clay-rich sediments over the effective stress range of 0.1 to 100 MPa. Poster presentation, American Geophysical Union, December 2014.

Casey B. Liquid limit as a predictor of fine-grained soil strength. Northeast Geotechnical Graduate Research Symposium (NGGRS), University of Massachusetts Amherst, October 26, 2012.

Casey B, Fahy BP, Flemings PB, Germaine JT. Shear strength of two Gulf of Mexico mudrocks and a comparison with other sediments. 4th EAGE Shale Workshop, Porto, Portugal, April 6–9, 2014. doi: 10.3997/2214-4609.20140029.

Casey B, Germaine JT. Variation of cohesive sediment strength with stress level. Multiphysical Testing of Soils and Shales, Springer Series in Geomechanics and Geoengineering 2013. doi: 10.1007/978-3-642-32492-5

Academic Appointments

Part-time Faculty, Department of Civil and Environmental Engineering, Tufts University, Medford, MA, 2018

Professional Affiliations

American Society of Civil Engineers—ASCE

American Geophysical Union—AGU

ASTM International

  • Committee D18 on Soil and Rock
  • Subcommittee F16.65 on Land Drainage

Sigma Xi

European Association of Geoscientists and Engineers—EAGE

CREDENTIALS & PROFESSIONAL HONORS

  • Ph.D., Civil and Environmental Engineering, Massachusetts Institute of Technology (MIT), 2014
  • M.S., Civil and Environmental Engineering, Massachusetts Institute of Technology (MIT), 2011
  • B.S., Civil and Environmental Engineering, National University of Ireland, 2009, First Class Honors
  • First prize winner of the Northeastern Geotechnical Graduate Research Symposium Abstract Competition, 2012

    Winner of the Institute of Civil Engineers (ICE) Graduates and Students Papers Competition, 2009

LICENSES & CERTIFICATIONS

Licensed Professional Engineer, Maine, #PE14381

Licensed Professional Engineer, Massachusetts, #53503

Blasting Certificate of Competency, Massachusetts, #BL-007253