Civil Engineering

Soil and Rock Mechanics

Finite Element Analysis

EDUCATION

• Ph.D., CIVIL ENGINEERING, Massachusetts Institute of Technology, 1972
• M.S., CIVIL ENGINEERING, Massachusetts Institute of Technology, 1969
• B.S., CIVIL ENGINEERING, University of Puerto Rico, 1966

REGISTRATION/LICENSES

• Licensed Profession Engineer, Florida, Dominican Republic, Puerto Rico

PROFESSIONAL ASSOCIATIONS

• Colegio Dominicano de Ingenieros, Arquitectos y Agrimensores
• Colegio de Ingenieros, Arquitectos y Argimensores de Puerto Rico
• Florida Engineering Society
• National Society of Professional Engineers
• American Society of Civil Engineers (ASCE)
• International Society of Soil Mechanics and Foundation Engineers
• American Society of Soil Mechanics and Foundation Engineers
• American Society for Testing and Materials (ASTM)
• The Tau Beta Pi Engineering Honor Society
• The Chi Epsilon Honorary Society of Civil Engineers
• The Sigma Xi Scientific Honorary Society

LANGUAGES

• English and Spanish as native speaker.

PROFESSIONAL SUMMARY

Dr. Paniagua is a soil - structure interaction expert. He personally performs finite element analysis of concrete and steel structures that interact with soil and rock to analyze how the entire system will perform under both static and dynamic loading. Types of finite element projects have been concrete tunnel and tieback anchor interaction, combination cantilever H-pile and Mechanically stabilized earth support structure and shotcrete lining of tunnels.

Dr. Paniagua has been a Professor of Soil Mechanics and Foundation Engineering at the University of Puerto Rico, Mayaguez, and the Universidad Central del Este in the Dominican Republic. He has been the Director of Community Development Programs, General Manger of the National Electrical Utility Company and Presidential Advisor for Energy Development Projects, all in the Dominican Republic.

Dr. Paniagua has been a consultant for thirteen large dam projects in the Dominican Republic and one in Puerto Rico, principally in the areas of borrow excavations, geophysical and geotechnical investigations, embankment fill design and construction, tunnel design and construction, and instrumentation design and installation. He has been a consulting engineer for aqueduct and sewer projects, highways, bridges, high-rise building foundations, deep excavations, dewatering systems, analysis and design of large cuts in residual soils, and feasibility studies and design of electrical power plant installations, transmission and distribution power-lines.

RELEVANT EXPERIENCE

• Sturctural soil interaction consultant for correction repair of Tunnel #4 near Elko, NV. Moving concrete liner was stabilized by tieback anchors.
• Cow Creek combination retaining wall design, BNSF double track project, Bonners Ferry , ID.
• Rock cut stability analysis using rock bolts, BNSF double track project, near Bonners Ferry , ID.
• Friction pile interaction analysis, BNSF double track project, near Troy, MT.
• Special Geotechnical Consultant for the construction of the Cerrillos Dam, Ponce, Puerto Rico
• Special Geotechnical Consultant for the construction of the Sabana Yegue Dam, Dominican Republic
• Geotechnical and seismic survey studies for the following large dam projects: Htillo, Bao, Los Mesas, Los Negros, Sabaneta, Los Limones, Redondo and El Cacao.
• Design of three flood control dams for the El Coqui Project, San Juan, Puerto Rico.
• Feasibility study and design of a private electric power generation and transmission system for the Dominican Telephone Company.
• Regional study of river aggregate resources, Dominican Republic
• Design of two dry dock pier facilities and three docking piers, one syncrolift platform, port dredging and all shops and utilities for the San Pedro Shipyard, Dominican Republic
• Design of the reclamation plan for two large gypsum tailings stacks and process water ponds at phosphate fertilizer plants.
• Foundation recommendations for the San Jose Lagoon Bridge, San Juan, Puerto Rico.
• Foundation recommendations for three bridge crossing of the main transmission pipes; engineering geology study and design recommendations for the transmission tunnel; and engineering geology, geotechnical studies and construction recommendations for 4.5 km of side-slope cuts for the installation of the main transmission pipes. Valdesia-Santo Domingo Aqueduct, Dominican Republic.Responsible for studies, design, specifications and construction supervision of the excavation of the 1700-meter-long, 3.1-meter-diameter pressure tunnel and three river crossing structures for the 1.7-meter-diameter main aqueduct pipe. Design of all major excavation cuts along the 40 km route of the main aqueduct pipe Design of a soil-nail and micro-pile system for the stabilization of the tunnel portals in coluvial talus deposits, and gabion walls and stabilization procedures for high-cut slopes in calcareous soils at the Noriega Treatment plant. Design of the contact and consolidation grounting and the penstock and reinforced concrete lining of the tunnel. Foundation design of a pumping station structure in the Lopes Reservoir. Cibao Central Aqueduct, Dominican Republic.
• Studies and foundation design for the Haina River diversion dike and pumping station at Manoguayabo, Dominican Republic. Design of the river diversion channel and cofferdams.
• Design of a sheetpile double-walled cofferdams for the crossing of the Manoguayabo-Santo Domingo main aqueduct pipe under the Haina River. Design of the sheetpile scour protection wall and all the specifications and procedures for construction.
• Preliminary geotechnical and geologic evaluations of 11 km of tunnel alignments and dam sites for a rockfilled dam for the Joca River Projects.
• Design of erosion control measures and structures for the Valdesia-Santo Domingo Aqueduct, the Manoguayabo-Santo Aqueduct and the Cibao Central Aqueduct.
• Analysis of a slope failure in residual soils, and design of a tieback system to stabilize slopes, Las Colinas Development, San Juan Puerto Rico.
• Design modifications for the stability of slopes under particularly unfavorable geologic conditions, Highway PR-10, Puerto Rico.
• Foundation conditions for long viaduct bridge on Highways PR-9, PR-22 and PR-9 in Puerto Rico.
• Ground penetrating radar survey and geotechnical evaluation of the pavement foundation conditions of the main runway of the Las Americas airport in Sano Domingo, Dominican Republic.
• Analysis of a well pumping test and evaluation of a groundwater plan for the design of system to remediate contamination, City of Surfside, Florida.
• Foundation design for a large number of high-rise buildings, highway bridges, underground pump houses, main water-lines and land development projects.

SELECTED RECENT CLIENTS

• Dillingham Construction Company, Pleasanton, California
• Guy F. Atkinson Company, San Francisco, California
• Technoconsult, S.A., Caracas Venezuela
• Falconbridge Dominicana, Dominican Republic
• General Electric Company, Dominican Republic
• Caribbean Soil Testing, Puerto Rico
• Soiltech Corporation, Puerto Rico

PUBLICATIONS AND PRESENTATIONS

1. “ A Durability Test for Stabilized Soils”, U.S. Army Corps of Engineers Waterways Experiment Station, June, 1968.
2. “ Effects of Molding Conditions of the Effective Stress-Strength Behavior of Stabilized Soils”, U.S. Army Corps of Engineers Waterways Experiment Station, January, 1970.
3. “ The Effect of Mixing Conditions, Method of Compacting and Curing Conditions on the Effective Stress-Strength Behavior of Stabilized Soils”, U.S. Army Corps of Engineers Waterways Experiment Station, 1972.
4. “ The Effect of Repeated Loading on the Stress Strength Behavior of Stability Soils”, U.S. Army Corps of Engineers Waterways Experiment Station, 1972.
5. “ Fatigue Behavior of Soil-Cement”, Ph.D. Thesis, Massachusetts Institute of Technology, September, 1972.
6. “ Failure of Two Bridge Abutments Due to Negative Skin Friction”, American Society of Civil Engineers, Paper No. 3759, October, 1979.
7. “Estrategia Para el Desarrollo del Sector Energia Electrica de la Republica Dominicana, 1981-1991. Falconbridge Dominicana. Febrero, 1981.
8. “Estudio de la Situacion de Suministro de Agregados Para la Industria de la Construccion en el Area Metropolitana de Santo Domingo, Fuentes Disponibles y Calidad Obtenible”, Camara Dominicana de la Contruccion, Enero, 1987.
9. “ Participacion de la Empresa Privada en la Produccion Distribucion y Comercializacion de Energia Electrica en la Republica Dominicana”, Camara Americana de Comercio, Octubre, 1987.
10. “ Characteristics of the Rocks from the Spillway Excavation Zone in the Cerrillos Dam Project”, Dillingham Construction International, November, 1990.
11. “Study of the Compaction Characteristics of the Clay Borrow Soils for the Cerrillos Dam and Their Relationship to Testing Procedures”, Dillingham Construction International, July, 1991.