STATEMENT OF QUALIFICATIONS STRUCTURAL ENGINEERING OF WIND … › docs › soq_wind_tf.pdf ·...

KHATRI INTERNATIONAL, INC. CIVIL & STRUCTURAL ENGINEERS

3579 E. Foothill Blvd., #736, Pasadena, CA 91107

www.khatrinternational.com

[email protected]

Tel. (626) 351-4830; Cell 626-475-7660

STATEMENT

OF QUALIFICATIONS

STRUCTURAL ENGINEERING OF

WIND TOWERS and FOUNDATIONS

http://www.khatrinternational.com/

KHATRI INTERNATIONAL, INC.

2 | P a g e STATEMENT OF QUALIFICATIONS – WIND TOWERS and FOUNDATIONS

TABLE OF CONTENTS

SECTION TITLE

1.0 INTRODUCTION AND EXECUTIVE SUMMARY

2.0 PROJECT TEAM

3.0 EXPERIENCE AND PROJECTS

4.0 CLIENT REFERENCES



1.0 INTRODUCTION AND EXECUTIVE SUMMARY

We are pleased to introduce our firm, KHATRI International, Inc., to your

organization. Khatri Int. Inc. is a civil and structural engineering company based

in Pasadena, California. Our project experience covers general building design,

structural engineering, seismic design, structural tower design, civil engineering

and infrastructure work including pipeline, reservoir design, flood control facilities,

storm drain, water pump stations, and construction management aspects.

Over the past ten years we have developed a specialization in wind tower design

and analysis with a particular emphasis on the design of wind tower foundations.

We are well versed in all types of wind tower foundations, from spread footings to

designs utilizing rock anchors. Our unique experience gives us the ability to

value engineer the most cost effective foundation solution for an individual site,

and then implement that solution through final design and construction.

We have worked on over 2000 MW of wind tower projects in the US and Canada

and signed as Engineer of Record for the towers and foundation systems. We

maintain PE licenses in 32 states, and Canadian Provinces.

.



2.0 PROJECT TEAM

KHATRI INT. INC.: Structural Engineering, Planning, Project Management, Scheduling, Cost Estimating; STAFF of 4 Engr/Drafting Techs for this project

South Coast Geotechnical: Geotechnical Engrs, Geologists, Material Testing

Contech: Proprietary patent holder of the GVF foundation system



RESUMES

Dilip Khatri, PhD, SE Responsibilities: Provide expert consultation services related to Seismic and

Structural Analysis, Project Management, Structural Design, and overall project direction.

Qualifications: 25 years of professional civil engineering experience

involving structural analysis, construction management, infrastructure design.

Professor of Civil Engineering at Cal Poly Pomona from

1991-1997 Licenses: PE # 40833 in California SE # 4391 in CA General Contractor B 555505 in CA Education: PhD Structural Engineering, USC, 1998 MBA, Finance, USC, 1988 MS Structural Engineering, CALTECH, 1985 BS Civil Engineering, CAL STATE LA, 1983 Books: Structural Design of Masonry Design, published by ICC,

2004 Masonry Problem Solver, published by ICC, 2003 Publications: 25 published articles and papers in various ASCE journals,

Structure Magazine



CARL D. SCHRENK SOUTH COAST GEOTECHNICAL SERVICES EDUCATION AND LICENSES

State of California Certified Engineering Geologist, No. 900 State of California Registered Geologist, No. 3101 State of Arizona Registered Geologist, No. 7156 State of Utah Professional Geologist, No. 7153623-2250 BS, Geology, University of Utah, Salt Lake City, Utah As Branch Manager and senior engineering geologist of (ESSW), Mr. Schrenk oversaw the operations of the San Juan Capistrano office. He is experienced in performing and coordinating geologic/geotechnical exploration field studies, evaluating and preparing samples for laboratory testing, analyses and report preparation, review and performing services during construction. He has over 38 years of professional experience in all phases of geotechnical engineering from project inception to construction. Mr. Schrenk was also responsible for new client development for the office

SELECT PROJECT EXPERIENCE

Marriott Hotel and Time Share, Park City, Utah

Slope stability issues resulted in using rock bolts to anchor the highly fractured and clay filled adversely dipping limestone to competent rock. This entailed evaluating the rock bolt spacing, length and angle of drilling. Mr. Schrenk provided quality control services during rock bolt installation and evaluation of the extent of installation.

Leisure World, Vista/Oceanside, California

Geologic and geotechnical field studies involving rock rippability studies to evaluate the rock hardness, provided geologic qualitative analysis on slope stability, alluvium removals, sub-drain design information, grading plan review, and review project quality control during grading. City of Lake Elsinore, California

Principal geologist in the preparation of a comprehensive geologic hazard study text and map for the City of Lake Elsinore. Included in the study was the identification of potential areas of liquefaction, rock fall hazards, debris flow, fault hazard issues and areas of high groundwater. University of California at Irvine

Responsible for the geotechnical exploration and preparation of a comprehensive geotechnical report for the multi-story physical science building and several other major buildings on campus.



3.0 EXPERIENCE AND PROJECTS

Figure 1: Khatri International Inc. a has designed numerous wind tower foundations for projects across the country. Our designs utilize various foundation systems, including spread footings, and foundation anchor systems. The foundation shown here is a spread footing for a 500 kW Vestas turbine installed at a manufacturing plant in Illinois in October of 2009. A rock anchor type foundation was considered for this project, but the spread footing was determined to be the most economical solution.



Figure 2: We have worked in the Wind Tower industry designing wind towers for 10 years. These projects involve large scale steel tubular tower structures worth $100 Million dollars per project. Our team develops structural designs, cost estimates, and works directly with construction teams to assure these towers are built in accordance to design plans and specifications. Following is a list of wind farms projects we have been involved with:

Altamont Wind Farm, Patrick and Henderson, Inc.: Performed structural and foundation design for 80 meter towers mounted with NEG MICON Turbines for a 110 MW wind farm.

Argonne Mesa Wind Project, Patrick and Henderson, Inc.: Performed structural and foundation design for 69 meter tower mounted with a MHS 1 MW Turbine.

Buffalo Gap Wind Farm, Patrick and Henderson, Inc.: Performed structural finite element analysis of soil structure interaction for the foundation of a 78 meter tower mounted with a Vestas V80-1.8MW Turbine.

Combine Hill, Oregon; Patrick and Henderson, Inc.: Performed structural and foundation design for 55 meter tower mounted with a MH 1 MW Turbine.



Coram Energy II Wind Farm, Kern Co., California; Patrick and Henderson, Inc.: Performed structural and foundation design for 63.1 meter tower mounted with a GE 1.5 MW Turbine.

Crescent Ridge Wind Farm, Illinois; Patrick and Henderson, Inc.: Performed structural and foundation design for 80 meter NEG Micon Tower mounted with a NEG Micon 1.65MW Turbine.

Guantanamo Navy Base, Cuba; Patrick and Henderson, Inc.: Performed structural and foundation design for 55 meter HH Tower mounted with a 950 kW NEG Micon Turbine.

Evanstan, Wyoming; Patrick and Henderson, Inc.: Performed structural and foundation design for 67 meter Vestas Tower mounted with a Vestas V80 Turbine.

Germanischier Lloyd, Hamburg Germany; Patrick and Henderson, Inc.: Performed structural finite element analysis, dynamic analysis, and nonlinear analysis on the foundation and soil-structure interaction to obtain GL Certification for P&H Wind Tower Foundation System.

Yawdeck Failure Analysis, FPL Energy: Performed structural finite element nonlinear analysis using ANSYS to determine the cause of structural cracking in the yawdeck.

Wind Tower-Foundation Dynamic Analysis Study; FPL Energy: Performed analysis of multiple tower-foundation sites located North Dakota, South Dakota, New Mexico, Pennsylvania, Illinois, and Texas. This study comprised working with a Dynamics Test Lab to evaluate the structural-foundation response of towers in various soil conditions and the impact of soil on the frequency response behavior of wind towers.

Hopkins Ridge Wind Farm, Columbia County, Washington; Patrick and Henderson, Inc.: Performed structural and foundation design for 67 meter HH Tower mounted with a Vestas V80 Turbine.

Horse Hollow Wind Project, Texas; Patrick and Henderson, Inc.: Performed structural and foundation design for 80 meter Tower mounted with a Siemens 2.3 MW Turbine.

Wigton Jamaica; Patrick and Henderson, Inc.: Performed structural and foundation design for 50 meter Tower mounted with a NEG Micon 900 kW Turbine.

Java, South Dakota; Patrick and Henderson, Inc.: Performed structural and foundation design for 78 meter Tower mounted with a Vestas V80 1.8MW Turbine.

Kettle Hill Wind Farm, Pnicher Creek, Alberta, Canada; Patrick and Henderson, Inc.: Performed structural and foundation design for 67 meter Tower mounted with a Vestas V80 1.8MW Turbine.

Mars Hill Wind Project, Mars Hill, Maine; Patrick and Henderson, Inc.: Performed structural and foundation design for 80 meter HH Tower mounted with a GE 1.5MW Turbine.

McBride Lake, Alberta, Canada; Patrick and Henderson, Inc.: . Performed nonlinear analysis work on the foundation-tower response and evaluated bursting stress issues for 50 meter Tower mounted with a Vestas V-47 660kW Turbine.

McDonald Ranch Wind Project, Sterling, Texas; Patrick and Henderson, Inc.: Performed structural and foundation design for 80 meter Tower mounted with a Siemens 2.3 MW Turbine.



Mexico City, Mexico; Patrick and Henderson, Inc.: Performed structural evaluation and seismic analysis on 60 meter tower mounted with a MHI 1 MW Turbine.

Meyersdale, Pennsylvania; Patrick and Henderson, Inc.: Performed structural and foundation design for 80 meter NEG Micon Tower mounted with a NEG Micon 1.5 MW Turbine.

Mountaineer Backbone Project, West Virginia; Patrick and Henderson, Inc.: Performed finite element analysis and structural tower foundation study for FPL Energy on 72 meter Tower mounted with a NEG Micon 72C/1500 W Turbine.

Rock River 1, Arlington, Wyoming; Patrick and Henderson, Inc.: Performed structural and foundation design for 60 meter Tower mounted with a MH 1 MW Turbine.



Figure 3: We have extensive experience in Finite Element Analysis and Structural Solutions for complex components and structural design. We have been working with sophisticated Finite Element Software programs to perform Linear, Nonlinear, Dynamic, and Plastic Analysis of various buildings, towers, and structures for 20 years.

We are proficient in the following FEA packages:

1. COSMOS

2. ANSYS

3. ETABS

4. RISA-3D

5. ULARC- Collapse Analysis Software

6. SAP2000 (linear and nonlinear packages).



Figure 4: Our firm has designed pipeline support structures and worked with local water departments.



Figure 5: Our firm has worked with the Nuclear Power industry to develop seismic and blast analysis of reinforced concrete Nuclear Towers. These Blast Resistant Enclosures (BREs) were designed using nuclear shock wave analysis for towers up to 60m tall. This work was done under the direction of The Washington Group and in conjunction with Patrick and Henderson, Inc., in 2004-05.



Figure 6: Dr. Khatri has written two books on Masonry Design and seismic retrofit methods. This book is published by the International Code Council ICC.

. Figure 7: Dr. Khatri wrote this book with specific examples and problem solving methods for Masonry and Seismic Design, published through ICC.



5.0 CLIENT REFERENCES

Khatri International Inc., Inc. is pleased to provide the following references:

a) Mr. Kent Pedersen Avanti Wind Systems, Inc. 5150 S. Towne Dr. New Berlin, WI 53151 (262) 641-9101

b) Mr. Louis Rigaud Halus Power Systems 25352 B Cypress Avenue Hayward, CA 94544 (510) 780-0591

c) Mr. Allan Henderson Patrick and Henderson 1965 Airport Drive Bakersfield, CA 93308 (661) 391-9854

d) Mr. Lem Paco, PE City of Los Angeles Public Works (213) 482-7049

e) Mr. Ross Denny, Laurel Canyon Development

Best Choice Properties, LLC 2487 So. Gilbert Rd. Ste 106-418 Gilbert, AZ 85296 (602) 230-4346

STATEMENT OF QUALIFICATIONS STRUCTURAL ENGINEERING OF WIND … › docs › soq_wind_tf.pdf ·...

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