Expert Details
Geotechnical Engineering, Earthquakes, Landslides, Subsidence, Soil Heave, Vibrations, Foundations.
ID: 731104
California, USA
Expert has 25 years of experience in the field of geotechnical engineering. He has performed investigations and analyses of landslides, dams & building foundations. Also he has been involved in earthquake investigations and studies.
Performed static analyses using finite differences (FLAC) for the design of a deep-soil-mixing cut-off wall, jet grouting, and braced excavation system of the proposed cut-and-cover station and portal structures for the tunnel alignment.Performed seismic analyses.Performed static and dynamic analyses for firm.Performed vibration study for firm.
Education
| Year | Degree | Subject | Institution |
|---|---|---|---|
| Year: 1989 | Degree: Certificate of Postdoctoral Studies | Subject: Geotechnical Engineering | Institution: University of California, Los Angeles |
| Year: 1987 | Degree: P.hD | Subject: Soil Mechanics and Foundation Engineering | Institution: University of Tokyo |
| Year: 1982 | Degree: Diploma of Civil Engineering | Subject: Civil Engineering | Institution: Swiss Institute of Technology, Lausanne |
Work History
| Years | Employer | Title | Department |
|---|---|---|---|
| Years: 2011 to Present | Employer: Undisclosed | Title: Principal Engineer | Department: Torrance |
Responsibilities:Expert leads the forensic and numerical modeling groups. |
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| Years | Employer | Title | Department |
| Years: 1997 to 2011 | Employer: Praad Geotechnical Inc. | Title: Chief Engineer | Department: N.A. |
Responsibilities:Lead technical position in the company. |
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| Years | Employer | Title | Department |
| Years: 1988 to Present | Employer: Undisclosed | Title: Adjunct Associate Professor | Department: Civil Engineering Dept. |
Responsibilities:Professor and researcher |
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| Years | Employer | Title | Department |
| Years: 1989 to 1997 | Employer: Lockwood-Singh | Title: Senior to Chief Engineer | Department: N.A. |
Responsibilities:Lead technical position in the company. |
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| Years | Employer | Title | Department |
| Years: 1982 to 1984 | Employer: Motor Columbus | Title: Civil Engineer | Department: Dams |
Responsibilities:Design of dams and related infrastructure. |
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International Experience
| Years | Country / Region | Summary |
|---|---|---|
| Years: 2004 to 2006 | Country / Region: Japan | Summary: Geotechnical investigation of the causes of settlement and design of remediation using piles for a tract of homes near Tokyo, Japan (for American Homes of Japan). |
| Years: 2011 to 2011 | Country / Region: Japan | Summary: Tohoku Earthquake Post eartquake evaluation of damage (Tsunami, liquefaction, landslides, dam and levee failures) caused by the Magnitude 9.0 earthquake of March 11, 2011. |
| Years: 1983 to 1984 | Country / Region: Ecuador | Summary: Paute Mazar Gravity Dam, Expert performed static and dynamic analyses for the stability of the rock abutments. He used Finite Element results to evaluate the stresses and water pressures in the rock mass and performed three-dimensional rock mechanics stability analyses to determine the potential for three-dimensional discrete geologic block failures in the rock abutments. |
| Years: 1982 to 1984 | Country / Region: Peru | Summary: Yuracmayo Earth Dam, Expert performed numerical deformation analyses to evaluate the dynamic performance of the dam and predict displacements of the dam under various Earthquake scenarios. The large predicted displacements resulted in significant changes to the dam cross-section to reduce the potential for a major failure due to seismic events. |
| Years: 1982 to 1984 | Country / Region: Honduras | Summary: EL Cajon Arch Dam, Expert performed static and dynamic analyses using Finite Elements for the design of the bottom outlet and elevator towers. After a portion of the upper left abutment was lost during blasting during construction, Expert performed numerical analyses to verify that stress redistribution would not significantly overstress the arch dam and rock abutments. Additional analyses included design of instrumentation to evaluate the performance of the grout and drainage curtains and rock abutments. |
Career Accomplishments
| Associations / Societies |
|---|
| American Society of Civil Engineers, American Society of Testing Materials, International Society of Soil Mechanics and Foundation Engineering, Structural Engineers Association of Southern California, Swiss Society of Engineers and Architects, Swiss Society of Soil and Rock Mechanics, International Code Council, Forensic Expert Witness Association. |
| Licenses / Certifications |
|---|
| - Registered Geotechnical Engineer, State of California - Registered Civil Engineer, State of California - Registered Civil Engineer, State of Nevada - Registered Civil Engineer, State of Hawaii - Registered Engineer, Switzerland - Diplomate of ASCE’s Academy of Geo-Professionals - California Post-Disaster Safety Assessment Program |
| Professional Appointments |
|---|
| Multiple. |
| Awards / Recognition |
|---|
| Award for thesis at the Swiss Institute of Technology in Lausanne, Switzerland. |
| Publications and Patents Summary |
|---|
| 30+ publications |
Additional Experience
| Expert Witness Experience |
|---|
| 25+ trials 75+ depositions. Numerous mediations and arbitrations. |
| Training / Seminars |
|---|
| Geotechnical Engineering, Landslides, Earthquakes, Dams and levees, Foundations, Retaining walls, Subsidence. |
Language Skills
| Language | Proficiency |
|---|---|
| Spanish | Native level |
| French | Native level |
| Japanese | Intermediate level |