Understanding Overdredging - Using Technology to Enhance Efficiency and Profitability - Western Dredging Association
←
→
Page content transcription
If your browser does not render page correctly, please read the page content below
Presented By:
Jonathan White
Understanding Overdredging
Using Technology to Enhance Efficiency and Profitability
© 2021 Trimble, Inc - All Rights Reserved - Confidential and Proprietary Information
Jonathan White
● Trimble Marine Construction
systems product manager
● Background in GNSS, LiDAR,
dynamic positioning and
machine guidance technology
● Focus on Marine and
offshore or nearshore
construction projects
Trimble Inc
Transforming the Way the World Works
At Trimble, we have been in the
business of crafting confidence for
Position
customers for over 35 years.
Founded on the core principles of
triangulation, we stand for: Position,
Information and Communication.
Information Where all points unite, you’ll find
Trimble - with innovation and
technology for the future.
Communication
Trimble Marine Construction
Domain Multi-tier
Depth and Solutions
Breadth
History of OEM Partnerships
Innovation & Mixed Fleet
Global Reach & Integrated
Local Support Solutions
Image credit: Veit Construction, Kingsbury
Bay – Grassy Point Habitat, MN
Upcoming bridge construction boom
The U.S. has been underfunding its roadway maintenance for years,
which the ASCE says has resulted in a $786B backlog of
road and bridge capital needs.
The bulk of the backlog ($435B) is in repairing existing roads,
while $125B is needed for bridge repair, $120B for targeted system
expansion and $105 billion for targeted system enhancement
(which includes safety enhancements, operational improvements
and environmental projects).
www.forconstructionpros.com/infrastructure/news/21440197/i40-bridge-closure-puts-the-cost-of-doing-nothing-to-repair-infrastructure-on-display
Plan calls for $17 billion for ports, and inland waterways
What Work do you Want?
And what is within your capacity...
The Stakes How well prepared are you to bid and
win?
are High What equipment and skills do you need in
place now?
Can You Complete the Work on time and
Profitably?
Winning contractors will leverage technology
to ensure this happens.
Marine Construction
Industry Challenges
Tougher bid competition / Faster project completion
profit margins
Doing more with constrained Health, Safety and Environmental
resources (higher compliance
productivity per machine
hour)
Aging workforce/ staff
Machine shortages
retention/ staff recruitment
Questions to ask ourselves Dredge efficiency and safety ● Where can we build competitive advantage? ● Are we achieving maximum efficiency? ● Are we at maximum uptime? ● Can we reduce re-work? ● Where can we improve site safety? ● Where are the areas to improve our profitability?
Paid or unpaid overdepth
Dredge tolerance imprecision can represent the profit for a project
Figure 1, USACE (2006)...precision dredging, reducing that tolerance as much as possible,
is important, especially in environmental dredging.
There are several issues. For example, if required to remove
two million cubic yards, an owner does not want the
dredge operator to remove anything more because of sediment management
costs. Anything technology developers can do to
improve the process and reduce excess dredging, is valuable.
Dr. Donald Hayes, Research Environmental Engineer,
U.S. Army Engineer Research and Development CenterUSACE Regulation No. 1130-2-520
(29 Nov 1996)
https://www.publications.usace.army.mil/Portals/76/Publications/EngineerRegulations/er_1130-2-520.pdf
Now, technology can achieve dredge tolerance within inches.Dredging Challenges
● Sub-surface visibility / Working in the blind
● Monitoring project progress
● High processing and dump costs for contaminated material
● Limited safe working hours by daylight
● Challenging safety environment e.g. divers
● Guesswork > multiple passes to collect objects
● Rework of missed high spots/ slumping
● Mistakes can be costly
● Overwork > inefficiency
● Work interruptions for new survey verification
Image credit: WEDA
Technology can significantly reduce these challenges, using visualizationThe Visualization Advantage Multiple options
The Visualization Advantage
Real-time surface updates
Green/red
Design
and
actualBackhoe Excavator Dredge System
Attachment Stick Sensor Boom Sensor Attitude Marine Grade GNSS Antennas x2
sensor Sensor
GNSS Receiver
Submersible
Enclosure
Visualization
Dredge Head Rotation
Software
(optional)Wire Crane Dredging system Marine Grade
GNSS Antenna
GNSS Receiver Sensors Cable Drums - multi-turn or
proximity / friction wheel
Marine Grade Sensors Cable Drums -
GNSS Antenna multi-turn or proximity
Inclinometer
Inclinometer
Proximity Sensors - Option Visualization
SoftwareCutter Suction Dredge System
Marine grade GNSS Antennas x2
Visualization Software
Submersible Enclosure
Inclinometer Inclinometer
GNSS ReceiverHydrographic Survey
Project planning, as-built data updates and volume calculations
“We were able to identify
pieces of concrete the size
of a football”Ad-hoc hydrographic drone survey Unmanned Autonomous or Remote Operated Survey Vessels
(Optional) Real-Time Verification As-building
Real Time Verification Know the job is done before you move to the next location
Customer Success: Precise and
efficient debris
removal with
Tappan Zee enhanced safety“We have a full 3D image of what is happening under the surface. This system is going to change everything”
Customer Success: Document Project
Progress
Tappan Zee
Image credit:
Measutronics Corp.Why digitize?
● Accuracy: Higher precision relative to design
● Productivity: Operator experience is not essential. New operators can be trained
quickly and become productive faster.
● Consistency: Reliable, repeatable results
● Safer: Traditional methods may involve assistance from personnel outside the safety
of the machine cabin
● Flexibility: Machine Guidance systems can allows 24-hour operation, day or night
● Auditable: For insurance or billing disputes, keep a digital record/trail
● Lower costs: Reduce the need for frequent third party surveys
● Confidence: Know that the work has been completed before moving.
● Win bids: bid accurately and protect bid marginsAdvantages of Cloud Collaboration
Solving Challenges ● High-definition sub-surface visibility ● Real-time project progress visibility ● Clear identification of foreign objects ● Eliminate excess material dredged ● More predictable machine payload ● No daylight limitations ● Situational awareness in horizontal and vertical space ● Reduced need for divers ● Single pass to identify and collect foreign objects ● Reduce or eliminate rework / no high spots ● Real-time seafloor visibility (with sonar) ● Reduced potential for human error ● Target zero overwork
Buyers Checklist ❏ Easy to use ❏ Integrated system (hardware, software) ❏ Rugged and reliable solution (limited downtime) ❏ Trusted technology partner ❏ Compatible across multiple machine-types ❏ Installation, training, support from one provider ❏ Local support ❏ Return on investment
Next steps
● Request the Overdredging whitepaper
● Research new workflows (videos, datasheets, case
studies, free ‘Marine construction productivity’)
● Talk to Trimble, marine@trimble.com or
jonathan_white@trimble.com
● Discuss 10~15% improvement with your estimating
team
● Embed tech cost in project bidsThank You Questions? © 2021 Trimble, Inc - All Rights Reserved - Confidential and Proprietary Information
You can also read
