Featured Laser Scanning Projects

West Phoenix Topographic Scan

Darling Geomatics helped a Phoenix engineering firm recently by providing a topographic survey. Utilizing the P20 laser scanner, Darling provided a detailed scan of the lot. Several erosion issues were present around a retention basin, and were damaging an existing fence line.

Darling utilized laser scanning and conventional GPS survey techniques for this project. The point clouds were registered to local survey control provided by our GPS survey. Other improvements were also included in the final deliverable including curb and gutter, electrical boxes, water mains and culvert pipe iinverts.

Engineering Customer benefits:

• Highly detailed surface model
• Fast turn around time (1 week)
• TruView bubble views reduce site visits
• Complete documentation of the site

 

Phoenix Mayo Clinic Hospital

Darling Geomatics provided accurate 3D CAD drawings for the expansion of laboratory facilities at the Mayo Clinic Hospital in north Phoenix.

Darling laser scanning crews utilized two scanners and worked at night to avoid interfering with critical lab operating procedures. One of the scanners was put on our telescoping tripod to reach above existing ceiling tiles in order to capture existing infrastructure.

All of the point cloud data from both scanners was linked together to provide engineers and construction managers the data necessary to complete the work.

Construction Manager Customer benefits:

• Detailed background model for clash detection & routing
• 3D model for all trades to use at the onset of the project
• TruView bubble views reduce site visits
• 3D visualization for customer review

 

Banner Alzheimer's Institute - Phoenix

Darling Geomatics assisted with the refurbishment of an existing area of Banner Alzheimer’s Institute. The existing interior was removed, leaving the structural and MEP infrastructure in place. Darling’s crew scanned the area and provided the client with an accurate 3d model showing the spatial dimensions of the existing infrastructure.

This data was used in the rebuild, showing existing conditions and how these conditions compared to the new design.

Construction Manager Customer benefits:


• Detailed background model for clash detection & routing
• Significantly decrease RFIs and rework during construction
• 3D model for all trades to use at the onset of the project
• TruView bubble views reduce site visits
• 3D visualization for customer review

 

Power Generation Plant

Darling Geomatics was tasked to provide a 3d Model of one unit of a four unit coal fired power facility. With many power generation facilities upgrading to cleaner technology, having an accurate 3d as built of existing conditions is essential for replacing components in a large, complex structure.

Darling sent two scanning crews and one survey crew to cover the 150,000 square feet of area that also covered five vertical levels. We completed the scanning in four days, for a total of 61 days from the first scan to the final delivered 3d CAD model.

The model consisted of over 14,000 individually modeled steel beams and over 3,000 secondary structural support elements.

This technology will be used to help with the demolition of existing equipment as well as the installation of newer technologies.

Power Engineer Customer benefits:

• Detailed background model for clash detection & routing
• Significantly decrease RFIs and rework
• 3D model for all trades to use at the onset of the project
• TruView bubble views reduce site visits
• Able to benefit from more fabrication, less field welding

San Francisco International Airport - Terminal 2


Project Overview

Turner Construction Company required pipe mapping and as-built drawings of concrete structure as they performed phased demolition on Terminal 2 of the San Francisco International Airport. This project was on 2 levels—the crawlspace and main floor ofTerminal 2, connected together through survey control. Since the structure was constructed in the 1950’s, no accurate plans were available.

Project Execution

Darling's first deployment involved two, 2-man scan crews and a 2-man survey crew. Scan Crew 1 utilized the Leica ScanStation with self traversing functionality. Scan Crew 2 utilized the Leica High Definition Scanner 6000 (HDS 6000) in tandem with the survey crew, which used a Trimble Reflectorless Robotic total station to carry control. All crews focused on the crawl space beneath the terminal during the first deployment. Confined spaced certifications were necessary to work within the area. Approximately 97,000 square feet of crawl space was scanned over a period of 16 field days.

Darling's second deployment to the site involved a one man scan crew using the HDS 6000 working in tandem with a 2-man survey crew using the Trimble robotic total station. Working on the first floor of Terminal 2, the crews covered an additional 97,000 square feet (approx.) in 6 field days.

The end deliverable was an ACAD drawing of both of the level’s structure and piping, TruView functionality to create Building Information Models (BIM), and a three dimensional model that can be used for future measuring using Cyclone Viewer software.

Client Comments

“This service has been invaluable to the quality of our project. Darling crews performed scanning in an extremely difficult environment in the confined spaces of the crawl space, did it in ¼ of the time and delivered 10 times the accuracy than any other method we could have used. This as-built model has helped us greatly accelerate the design phase on our project and move it way forward on the schedule. There has been and will continue to be increased cost savings in RFI’s and fabrication for the duration of the project...a dollar value of the savings is not available but it will be significant.”

Schiller Power Station - Portsmouth, New Hampshire

Project Overview

Alstom Power was contracted to replace six 11.75 inch (11" inside diameter) pipes in a coal powered power station. The piping ran through 4 floors, within extremely congested areas. There was other piping, steel, structure and equipment within close (sometimes 0.5 inch) proximity that would make conventional spatial measurement nearly impossible.

Project Execution

Darling Geomatics (Darling) was assigned the task of scanning the six coal pipes as they went from the pulverizers to the burners. The target pipes were modeled along with all existing conditions that fell within an approximate two foot radius of each pipe. Darling scanned up stairways and across walkways to enable all scans to be registered together. This way, floor thickness and other structural elements (like steel) that traversed across more than one level were captured.

Client Comments

“Darling...worked on a job for Application Engineering at Alstom Power. They scanned a piping system for a coal fired boiler. The quote associated with the project was fair and accurate. They were very professional and proficient with the scanning. The information provided to engineering was very well put together. They were very accommodating when engineering asked for more information, which was never provided to them during the original quote. After the parts were installed at the customer’s site, the fit up was great; therefore, the scan was very accurate. I recommend Darling Environmental & Surveying for boiler pipe scan projects."


Electrical Substation Scan - Tucson, Arizona

Project Overview

Tucson Electric Power (TEP) enlisted Darling to help them with upgrades and changes to one of their central Tucson power substations. TEP was planning to replace outdated assets; and they needed accurate, detailed models of the remaining assets to help with the design process. They also wanted to show the local community what the newer, less visible assets would look like.

Project Execution

Darling sent out a combined 4 person scanning and GPS Survey crew in order to complete the scanning and survey work required for this project. The scope included scanning roughly 63,000 square feet to capture all existing assets, and tying that information to GPS control. This was completed in only 5 hours of field time.  Once back in the office, the data was processed and modeled in about 3 weeks, and 3D AutoCad drawings were delivered to TEP. These were used for both design and public relation purposes.


Darling can scan and model assets in great detail from a safe distance. Laser scanners can capture detail that conventional survey equipment could never acquire. The need for site visits is greatly reduced, as is design time. The cost savings for the client more than pays for the cost of scanning.

Client Comments

"Darling has performed 3D scanning and modeling of two substations for TEP.  Darling's 3D as-built service has…decreased our design time, reduced costly site visits by survey crews, and aided in creating realistic simulations that will be used in public meetings. We definitely plan to have more substations scanned for future projects."

UNLV Biotech Research Building - Las Vegas, NV

Project Overview

Laser scan data collection was performed to capture all structure, piping, HVAC, and conduit in a 30,000 square foot area of the UNLV Shadow Lane Campus Biotech Research Building. The modeled data was then exported to 3D ACAD and Revit for use in clash detection.

Project Execution

A total of 3 days field time was required to complete the project.  The data was linked to column grid lines provided by a local surveyor.

Client Comments

“The way we figure, with the amount of conflicts we caught ahead of time out here at UNLV we probably saved around 30-50 RFI's (requests for Information) sent to the Architect.  As these conflicts would likely not have been discovered until we were in the process of building, it would have likely cost the project a few weeks and an estimated $20-70K in rework, by the time it was all settled.  Instead we were able to pre-fabricate our ductwork gaining productivity, and convince the client to lower ceilings ahead of time at virtually no cost to the project.  We also identified and developed a plan to relocate about $50K in existing conduit runs and fire sprinkler lines that would have been in the way of new work.  This was done early enough to not cost the project any time, and the clash detection made it easy to show the client the need for the rework and to justify the cost.”

 

Copper Floatation Mill

Project Overview

A copper mining company planned on renovating and retrofitting new equipment into their existing floatation mill. Accurate as-built drawings were not available. Engineers at the site required spatially accurate models of the plant in order to determine future equipment placement while not interfering with current operations, which would ultimately pay for these improvements.

Project Execution

Darling deployed a 2-man scan crew with a Leica High Definition Scanner 6000 (HDS 6000) in tandem with a 2-man survey crew using a Trimble Reflectorless Robotic total station, to perform a complete as-built of the plant. Approximately 81,000 square feet, at multiple levels, were scanned in a period of 10 field days. The data was used to create an ACAD drawing containing steel structure, piping, equipment, and contours of the mill floor at 0.1 foot intervals. Three dimensional models and Cyclone Viewer software were provided to the client to permit measuring. Darling also provided TruView functionality which allows the user to mark up areas of interest and add information about existing equipment.

Client Comments

“We were able to import the design of our new circuit into the AutoCAD model easily and used it extensively for clash detection. We used the model to perfect the planned installation schedule and were able to determine how to perform the installation minimizing the plant down time. Plant downtime cost is estimated at $50,000 per operating hour. We continue to use the model throughout the plant for installation of new pipe runs, circuits, and structure improvements. It has become a very valuable tool in our planning process.”

 

 

Point cloud data showing erosion and damaged fenceline

 

 

Model and Point Cloud - Phoenix Mayo Clinic Hospital

 

 

Piping and support - Banner Alzheimer's Institute

 

 

 

3D Model - Power Generation Plant

 

 

 

 

 

 


Piping and ductwok at SFO Terminal 2

 

 

 

 

 

 

 

 

 

Scan and model of Schiller Station

 

 

 

 

 

 

 

 

Power Substation Model - Tucson

 

 

 

 

 

 

 

Building Model - UNLV Biotech Research Building

 

 

 

 

 

 

Model of Copper Floatation Mill

 

 

 

 

 

 

 

 

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