2017 SD AIRPORTS CONFERENCE. Highland Conference Center Mitchell, South Dakota March 29 30, 2017

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1 2017 SD AIRPORTS CONFERENCE Highland Conference Center Mitchell, South Dakota March 29 30, 2017

2 Geotechnical Engineering; from design through construction Collaborating with your engineering team.

3 What we do Geotechnical Engineering Environmental Consulting Structures Evaluation Building Sciences Construction Materials Testing Materials Laboratory Nondestructive Examination Drilling 3

4 Braun Intertec Overview Founded in 1957 Serving the public and private sectors 100% employee-owned More than 1,000 employees specialize in over 50 technical disciplines September 25, 2015 Acquired Apex Geoscience (Offices across TX and LA) 30 offices IA, KS/MO, LA, MN, ND, TX, WI 4

5 Airport Project Locations 5

6 What is Geotechnical Engineering? Geotechnical engineering is a branch of civil engineering that determines the engineering behavior of earth materials. 6

7 Principles of soil and rock mechanics are used to investigate subsurface conditions and materials to: Determine the relevant physical/mechanical and chemical properties of these materials; Evaluate stability of natural slopes and manmade soil deposits; Assess risks posed by site conditions; Design earthworks and structure foundation; Monitor site conditions, earthwork and foundation construction. Geotechnical Engineering 7

8 Geotechnical Evaluation Goals Develop an accurate & thorough evaluation of site characteristics (good data) Effectively communicate data to owner s agent Offer professional opinions regarding results parameters used in design process Become a trusted partner early carry through to project completion 8

9 Methods & Process Type of Project Civil Building Tools for collecting data Soil Borings Falling Weight Deflectometer (FWD) Asphalt & Concrete Coring Various Types of Rigs 9

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11 Good Data In = Good Design Soils Type Pavement Condition Best cost effective options 11

12 Evaluating Soil Types Sieve/Hydrometer Atterberg Limits Standard/Modified Proctor California Bearing Ratio Moisture Condition Blow Counts 12

13 Evaluating Pavement Types Pavement Cores Raveling Stripping Fatigue & Stress Cracking Falling Weight Deflectometer Review Pavement Condition Index On-Site Visual & Photos of Existing Pavement Corner DLH Crack- lund Asphalt Stripping core- Lund 13

14 Interpretations & Use Reporting results to engineer Outcome determines course of action Runway shot? 14

15 Typical Courses of Action Runways Mill & Overlay Pavement Reclamation Rehabilitation Complete Reconstruction Buildings Pre-existing Fill Deep foundations Suitable Soil Conditions Soil Correction as needed 15

16 Construction Start to Finish A PERFECT DESIGN IS ONLY AS GOOD AS HOW YOU CONSTRUCT IT 16

17 Airport Project Goals Keeping construction costs in budget and completion on time Meeting Project Specifications for QA/QC Collaboration with owner, engineer, and testing firm Communication with Contractor and project team Great final product 17

18 Types of Airport Projects Runways Taxiways Aprons Perimeter Roads Tunnels Terminal Buildings Hangars Access Roads Parking Structures 18

19 Successful Project Start Up Thorough plan and spec review Pre-Construction Meeting, Logistics, and Construction Safety Phasing Plan Discussions Building a good working relationship with your Airport, Engineering Consultant & Contractor. Constant Communication with Project Team 19

20 Construction Materials Testing During the construction phasing, the project engineer and testing group oversees your project so it will; Comply with the design and specifications as well as FAA, state, and local regulations. Provide certified staff to evaluate, test, and report results during all phases of the project. Assure accredited labs are performing acceptance testing per project specifications. Comply with all Safety hazards and concerns at all times. 20

21 Quality Control Testing (Contractor) Contractor s Quality Control Plan Laboratory Source Material Quality Compaction and MC of various lifts Concrete & Asphalt Mix Designs 21

22 Quality Acceptance Testing (Owner) Aggregate & Soils Material Quality Verification Moisture Content Compactions Concrete Pavement (PCC) Accepted Concrete Design Monitoring Air, Slump, and Temperature During Placement Compressive or Flexural Strength Testing Concrete Pavement Thickness Verification 22

23 Quality Acceptance Testing Cont. Asphalt Pavement (HMA) Accepted Pavement Design Mixture Property Analysis (Air Voids) Pavement Compaction and Thickness (Pavement Cores) Reporting Timely Reporting of Test Results Percent Within Limits (PWL) Calculations Report results in Accordance to FAA & State Specifications Submit Final Project Summary Report 23

24 Pavement Management Tip Communication with Project Team Developing a Suitable Maintenance Schedule to Prolong your projects Life 24

25 Questions? Wes Dickhut, PE Senior Engineer Aaron Tast, Aviation Sector Leader 25