CUSTOMER EXPERIENCE“When one of the machines was finished working, all its recorded
data would be synced to the CIS immediately,” says Lv. “Thesite supervisor could check and report on the work.” BusinessCenter - HCE was sometimes used to review and evaluate the final
construction results.

THE RESULTS
By using the most advanced construction technology tointegrate construction and operations, BNAH is constructing theairport more safely and efficiently, managing transparently, andmaximizing construction quality.
The accurate, stakeless navigation of the dynamic compaction
process ensured maximum efficiency and productivity, andconsistent compaction throughout the job site. Navigation toeach drop location was faster, so more drops could be performed
in a day. The system also prevented errors and avoided rework,
creating yet another avenue for saving valuable construction timeand reducing costs.
Safety was improved on the site through not needing personnel
to stand near the machine installing stakes. The system eveneliminated blind spots by notifying operators of areas to avoid.

The automatic as-built recording that took place with every
action of the machines generated accurate reports to track
drop counts, displacement, and energy for each drop location.
BNAH contractors must provide detailed documentation toprove that target compaction levels have been met. So thecapability of Trimble-equipped machines to collect and document
comprehensive, real-time compaction data is invaluable. The
information can be analysed and used to generate detailed
reports and documentation.

New Airport’s Queenly Curves
Rest on a Firm Foundation

NEXT STEPSBNAH is now in the material and pipeline phase of construction,and it is looking to deploy Trimble technology more widely
throughout the new airport project. Approximately 15 more onmachine guidance systems have been ordered. “For example, theTrimble CCS900 will be widely used for cement-stabilised layercompaction,” says Lv.
When Beijing Daxing Airport opens in late 2019, BNAH–and themillions of travellers arriving and departing–will have peace ofmind that not only is the airport’s foundation solid; the processes
used to construct the airport were solid too.

RESULTS“Trimble digital construction solution has helped the owner to clearly andimmediately know onsite construction status, which is a first in China airport
construction projects.”
LI QIANG

Chief Engineer of BNA

orontenNORTH AMERICA
Trimble Inc.
10368 Westmoor Drive
Westminster CO 80021
USA
800-361-1249 (US Toll Free)+1-937-245-5154 Phone
construction_news@trimble.com© 2017 Trimble Inc. All rights reserved. Trimble, the Globe & Triangle logo, Update with SITECH, Cat andAccuGrade are trademarks of Trimble Inc., registered in the United States and in other countries. All othertrademarks are the property of their respective owners. PN 022482-3898 (12/17)

TRANSFORMING THE WAY THE WORLD WORKS

022482-3898_Beijing_New_Airport_CST_USL_1217.indd 1-2

Beijing’s Daxing Airport was designed
in collaboration with the late Dame
Zaha Fahid, who was widely known asarchitecture’s “Queen of Curves”.
When it opens in 2019, this beautiful and very busy
airport will reside on solid ground–its flat, compact
and reliable base prepared with the help of Trimble
dynamic compaction technology.

Solution
Trimble® DPS900 Machine
Control System, CCS900
Compaction Control System,
Zephyr 2 Rugged Antenna,SPS855 GNSS Modular
Receiver, SPS555H GNSS
Heading Add-on Modular
Receiver and SPS855 base.
Find out more atconstruction.trimble.com

TRANSFORMING THE WAY THE WORLD WORKS

14/03/2018 2:35:14 PMoverview
Beijing Daxing Airport, which is currently under construction, wasdesigned by airport specialists ADPI in collaboration with renowned
architect Dame Zaha Hadid. When completed, the new airport willcomprise a striking organic-looking central hub with six sweeping
curved spokes. Its total floor area will reach 700,000 m2 (2,300,000ft); an 80,000 m2 (262,470 ft) ground transportation centre will linkto high-speed rail, metro, expressways, buses and an inter-airport
transportation system. By 2025 Daxing Airport is projected to handle
approximately 72 million travelers, 2 million tons of shipping and620,000 flights per year. The Daxing Airport site is located 67 km(220 mi) from BCI and 46 km (151 mi) north of Tian-an-men Square.

Location

Beijing, China

Beijing’s Daxing Airport will feature the world’s largest single terminal.

HIGHLIGHTS:►► Optimal construction efficiency►► Accurate measurement of weight drop displacement►► Minimal personnel required onsite for a safer workflow►► Accurate recording of machine coverage, speed, andcompaction quality
Since 2010 Beijing has boasted the world’s second busiest
airport in terms of passenger traffic. And since 2013 that airport,Beijing Capital International (BCI), has been running at full design
capacity. Fortunately, the construction of a supporting second
Beijing airport was proposed back in 2008.

construction methods to record and track quality, progress, andefficiency,” said Lv. So when BNAH’s technology solution tender
was created it included tightly defined requirements for dynamic,impact and vibration compaction; field supervision survey tools;concrete vehicle tracking; and all relevant software.
BNAH chose to partner with Trimble, because it was the only
solution able to meet every requirement of the tender.

Before construction of an airport of these dimensions could
commence, an enormous amount of land preparation work had
to be carried out, including a long process of engineered soil
compression to form a solid base. This process would involve
adding new soil material to the site then compacting the area tothe desired firmness.
“To ensure accuracy and the best efficiency on the airport project,
BNAH required all companies and contractors to digitally control

The Trimble DPS900 system included two Trimble Zephyr 2Rugged Antennas and two receivers: the Trimble SPS855 GNSS
Modular Receiver and the Trimble SPS555H GNSS Heading Addon Modular Receiver for heading. GNSS corrections were received
from an SPS855 base that installed in the site.
Construction plans designed in AutoCAD software were imported
into Business Center - HCE software, edited and processed intothe Trimble design format, then wirelessly sent to the Trimble
Site Tablet inside the crane via China Unicom cellular channels.
The DPS900 system then guided the rig operator to each drop
location–navigation was as simple as the operator following acrosshair on the Site Tablet’s screen. No stakes were ever needed;each hammer drop was automatically recorded.

THE CHALLENGE
Daxing Airport is owned by Beijing New Airport Headquarters(BNAH); three supervisory companies under BNAH oversee 14
airport construction contractors for flight zone construction. “It’sa massive project,” says Michael Lv, a Trimble project manager on
the new airport. “The airport, which will feature the world’s largest
single terminal, will comprise four runways and eight taxiways
built on 2,400 ha (5930 ac). It has an unprecedented amount ofcivil aviation investment by the Chinese government.”

intervals–the impact of each drop would create stress waves thatpenetrated the soil up to 10 m (33 ft), causing it to densify.

Accurate spacing between hammer drops was critical, but with a GNSS onmachine guidance system the compaction team easily achieved the accuracy
they needed without stakes.

THE SOLUTION
At the Daxing site, excavators and dozers performed cut/fill work
first. Then soil compaction commenced using a mix of dynamic
and roller compaction methods. For the dynamic method, a crane
was equipped with a GNSS-guided Trimble® DPS900 Machine
Control System to ensure maximum efficiency. The crane would
drop a heavy weight (hammer) on the ground at regularly spaced

In dynamic compaction, the first drop penetrates to the greatest
depth; the following drops compact the shallower layers. The
weight used and the height from which it is dropped determine
the degree of compaction, along with the spacing of the drops. ForDaxing Airport, there are two kinds of dynamic construction levels:
1000 kN and 2000 kN for different flight zone regions.
The dynamic process was followed by impact compaction usingtractors, then soil compaction with rollers. These machines wereinstalled with the Trimble CCS900 Compaction Control System.
This solution enables compaction teams to compact surface
material to a target density and check finished grade accuracy inthe same process. “The CCS900 technology really helps impact
and roller compaction by accurately recording machine coverage,speed, and compaction quality,” says Lv.

Other heavy machines for compaction were guided by the Trimble CCS900Compaction Control System.

Accurate spacing between hammer drops was critical, but with aGNSS on-machine guidance system the compaction team easily
achieved the accuracy they needed without stakes.
At the Daxing site the first compaction pass lowered the original
ground surface by 3 m (10 ft), at which time new material (soiland crushed stones) was added and the compaction process wasrepeated. Ultimately, the compaction team added 8-25 layers (soillifts) of new material all over the airport site in order to achieve thedensity defined by its geotechnical engineers.
Another critical component of the technology solution at theDaxing site was the Trimble Construction Information System(CIS), a web-based, real-time information exchange platform thatwas created for BNAH. Using the CIS, various airport stakeholders
could share information at every stage of the compaction process.

TRANSFORMING THE WAY THE WORLD WORKS

022482-3898_Beijing_New_Airport_CST_USL_1217.indd 3-4

14/03/2018 2:35:14 PM

overview
Beijing Daxing Airport, which is currently under construction, wasdesigned by airport specialists ADPI in collaboration with renownedarchitect Dame Zaha Hadid. When completed, the new airport willcomprise a striking organic-looking central hub with six sweeping
curved spokes. Its total floor area will reach 700,000 m2 (2,300,000ft); an 80,000 m2 (262,470 ft) ground transportation centre will linkto high-speed rail, metro, expressways, buses and an inter-airport
transportation system. By 2025 Daxing Airport is projected to handle
approximately 72 million travelers, 2 million tons of shipping and620,000 flights per year. The Daxing Airport site is located 67 km(220 mi) from BCI and 46 km (151 mi) north of Tian-an-men Square.

Location

Beijing, China

Beijing’s Daxing Airport will feature the world’s largest single terminal.

HIGHLIGHTS:►► Optimal construction efficiency►► Accurate measurement of weight drop displacement►► Minimal personnel required onsite for a safer workflow►► Accurate recording of machine coverage, speed, andcompaction quality
Since 2010 Beijing has boasted the world’s second busiest
airport in terms of passenger traffic. And since 2013 that airport,Beijing Capital International (BCI), has been running at full design
capacity. Fortunately, the construction of a supporting second
Beijing airport was proposed back in 2008.

construction methods to record and track quality, progress, andefficiency,” said Lv. So when BNAH’s technology solution tender
was created it included tightly defined requirements for dynamic,
impact and vibration compaction; field supervision survey tools;
concrete vehicle tracking; and all relevant software.
BNAH chose to partner with Trimble, because it was the only
solution able to meet every requirement of the tender.

Before construction of an airport of these dimensions could
commence, an enormous amount of land preparation work had
to be carried out, including a long process of engineered soil
compression to form a solid base. This process would involve
adding new soil material to the site then compacting the area tothe desired firmness.
“To ensure accuracy and the best efficiency on the airport project,
BNAH required all companies and contractors to digitally control

The Trimble DPS900 system included two Trimble Zephyr 2Rugged Antennas and two receivers: the Trimble SPS855 GNSS
Modular Receiver and the Trimble SPS555H GNSS Heading Addon Modular Receiver for heading. GNSS corrections were received
from an SPS855 base that installed in the site.
Construction plans designed in AutoCAD software were imported
into Business Center - HCE software, edited and processed into
the Trimble design format, then wirelessly sent to the Trimble
Site Tablet inside the crane via China Unicom cellular channels.
The DPS900 system then guided the rig operator to each drop
location–navigation was as simple as the operator following acrosshair on the Site Tablet’s screen. No stakes were ever needed;each hammer drop was automatically recorded.

THE CHALLENGE
Daxing Airport is owned by Beijing New Airport Headquarters(BNAH); three supervisory companies under BNAH oversee 14
airport construction contractors for flight zone construction. “It’sa massive project,” says Michael Lv, a Trimble project manager on
the new airport. “The airport, which will feature the world’s largest
single terminal, will comprise four runways and eight taxiways
built on 2,400 ha (5930 ac). It has an unprecedented amount ofcivil aviation investment by the Chinese government.”

intervals–the impact of each drop would create stress waves thatpenetrated the soil up to 10 m (33 ft), causing it to densify.

Accurate spacing between hammer drops was critical, but with a GNSS onmachine guidance system the compaction team easily achieved the accuracy
they needed without stakes.

THE SOLUTION
At the Daxing site, excavators and dozers performed cut/fill work
first. Then soil compaction commenced using a mix of dynamic
and roller compaction methods. For the dynamic method, a crane
was equipped with a GNSS-guided Trimble® DPS900 Machine
Control System to ensure maximum efficiency. The crane would
drop a heavy weight (hammer) on the ground at regularly spacedIn dynamic compaction, the first drop penetrates to the greatest
depth; the following drops compact the shallower layers. The
weight used and the height from which it is dropped determine
the degree of compaction, along with the spacing of the drops. For
Daxing Airport, there are two kinds of dynamic construction levels:
1000 kN and 2000 kN for different flight zone regions.
The dynamic process was followed by impact compaction using
tractors, then soil compaction with rollers. These machines wereinstalled with the Trimble CCS900 Compaction Control System.
This solution enables compaction teams to compact surfacematerial to a target density and check finished grade accuracy inthe same process. “The CCS900 technology really helps impact
and roller compaction by accurately recording machine coverage,speed, and compaction quality,” says Lv.

Other heavy machines for compaction were guided by the Trimble CCS900
Compaction Control System.

Accurate spacing between hammer drops was critical, but with a
GNSS on-machine guidance system the compaction team easily
achieved the accuracy they needed without stakes.
At the Daxing site the first compaction pass lowered the original
ground surface by 3 m (10 ft), at which time new material (soiland crushed stones) was added and the compaction process wasrepeated. Ultimately, the compaction team added 8-25 layers (soillifts) of new material all over the airport site in order to achieve thedensity defined by its geotechnical engineers.
Another critical component of the technology solution at theDaxing site was the Trimble Construction Information System(CIS), a web-based, real-time information exchange platform thatwas created for BNAH. Using the CIS, various airport stakeholders
could share information at every stage of the compaction process.

TRANSFORMING THE WAY THE WORLD WORKS

022482-3898_Beijing_New_Airport_CST_USL_1217.indd 3-4

14/03/2018 2:35:14 PMCUSTOMER EXPERIENCE

data would be synced to the CIS immediately,” says Lv. “Thesite supervisor could check and report on the work.” Businessconstruction results.

THE RESULTS
By using the most advanced construction technology tointegrate construction and operations, BNAH is constructing themaximizing construction quality.
The accurate, stakeless navigation of the dynamic compaction
consistent compaction throughout the job site. Navigation toeach drop location was faster, so more drops could be performed
in a day. The system also prevented errors and avoided rework,
creating yet another avenue for saving valuable construction timeand reducing costs.
Safety was improved on the site through not needing personnel
to stand near the machine installing stakes. The system eveneliminated blind spots by notifying operators of areas to avoid.

The automatic as-built recording that took place with every
action of the machines generated accurate reports to track
drop counts, displacement, and energy for each drop location.
BNAH contractors must provide detailed documentation toprove that target compaction levels have been met. So thecapability of Trimble-equipped machines to collect and document
comprehensive, real-time compaction data is invaluable. The
information can be analysed and used to generate detailed
reports and documentation.

New Airport’s Queenly Curves
Rest on a Firm Foundation

NEXT STEPSBNAH is now in the material and pipeline phase of construction,and it is looking to deploy Trimble technology more widely
throughout the new airport project. Approximately 15 more onmachine guidance systems have been ordered. “For example, theTrimble CCS900 will be widely used for cement-stabilised layercompaction,” says Lv.
When Beijing Daxing Airport opens in late 2019, BNAH‒and themillions of travellers arriving and departing‒will have peace ofmind that not only is the airportʼs foundation solid; the processes
used to construct the airport were solid too.

RESULTS“Trimble digital construction solution has helped the owner to clearly andconstruction projects.”

LI QIANG

Chief Engineer of BNA

Beijingʼs Daxing Airport was designed
in collaboration with the late Dame
Zaha Fahid, who was widely known asarchitectureʼs “Queen of Curves”.

orten

When it opens in 2019, this beautiful and very busy
© 2017 Trimble Inc. All rights reserved. Trimble, the Globe & Triangle logo, Update with SITECH, Cat andAccuGrade are trademarks of Trimble Inc., registered in the United States and in other countries. All othertrademarks are the property of their respective owners. PN 022482-3898 (12/17)

TRANSFORMING THE WAY THE WORLD WORKS

022482-3898_Beijing_New_Airport_CST_USL_1217.indd 1-2

and reliable base prepared with the help of Trimble
dynamic compaction technology.

SolutionTrimble ® DPS900 MachineControl System, CCS900
Compaction Control System,Zephyr 2 Rugged Antenna,
SPS855 GNSS ModularReceiver, SPS555H GNSS
Heading Add-on Modular
Receiver and SPS855 base.
Find out more atconstruction.trimble.com

TRANSFORMING THE WAY THE WORLD WORKS

14/03/2018 2:35:14 PM