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Description
Helical PilesCondition: BRAND NEW ISBN: 9780470404799 Year: 2009 Publisher: John Wiley & Sons Inc (US) Pages: 528 Description: An unbiased, comprehensive review of helical pile technology and applications Helical piles have risen from being merely an interesting alternative for special cases to a frequently requested, more widely accepted deep foundation adopted into the 2009 International Building Code. The first alternative to manufacturer produced manuals,
Condition: BRAND NEWISBN: 9780470404799
Year: 2009
Publisher: John Wiley & Sons Inc (US)
Pages: 528
Description:
An unbiased, comprehensive review of helical pile technology and
applications
Helical piles have risen from being merely an interesting
alternative for special cases to a frequently requested, more
widely accepted deep foundation adopted into the 2009 International
Building Code. The first alternative to manufacturer-produced
manuals, Howard Perko's Helical Piles: A Practical Guide to
Design and Installation answers the industry's need for an
unbiased and universally applicable text dedicated to the design
and installation of helical piles, helical piers, screw piles, and
torque anchors.
Fully compliant with ICC-Evaluation Services, Inc.,
Acceptance Criteria for Helical Foundation Systems and
Devices (AC358), this comprehensive reference guides
construction professionals to manufactured helical pile systems and
technology, providing objective insights into the benefits of
helical pile foundations over driven or cast foundation systems,
and recommending applications where appropriate. After introducing
the reader to the basic features, terminology, history, and modern
applications of helical pile technology, chapters discuss:
Installation and basic geotechnics
Bearing and pullout capacity
Capacity verification through torque
Axial load testing, reliability, and sizing
Expansive soil and lateral load resistance
Corrosion and life expectancy
Foundation, earth retention, and underpinning systems
Foundation economics
Select proprietary systems
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4.7 ★★★★★
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Product Reviews
★★★★★ 1
NO DELIVERY DO THEY EVEN HAVE THE PRODUCT TO SELL??
Size: 5 Panels, Color: Grey
There is a problem with the Seller delivering on the products sold. Or someone is selling on behalf of the seller and not being able to deliver. Purchased 3-part panels used no problem, and are nice, but we also needed the 5-panel divider. which has been promised twice for delivery and NOT delivered without explanation. We'll have to send the other back as we'll need something that match.
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Reviewed in the United States on May 1, 2026
★★★★★ 5
5-Panel Office Privacy Divider
Size: 5 Panels, Color: Grey
The Natwind 5-panel partition is a practical solution for creating privacy or dividing space in offices, studios, or shared rooms. Measuring 122.8" x 71", it provides generous coverage, while the foldable design makes it easy to set up, move, or store. The freestanding panels are sturdy and offer some acoustic dampening to reduce noise. A versatile and portable divider that works well for temporary or flexible room layouts. Solid quality and sturdy.
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Reviewed in the United States on September 14, 2025
★★★★★ 3
Not bad. Not great.
Size: 5 Panels, Color: Grey
This was very heavy. It wasn't too hard to assemble but you do need two people. Sadly did not help with the noise I was hoping it would. For the money I spent I was hoping for more.
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Reviewed in the United States on October 2, 2025
★★★★★ 1
It has no sound insulation function at all
Size: 5 Panels, Color: Grey
I purchased this soundproof partition with the expectation of creating an independent and quiet office environment. However, the product does not deliver effective sound insulation. The ambient conversation noise outside the partition measures 50 decibels, and the noise level inside remains unchanged at 50 decibels. Given this lack of performance, I would like to inquire about the actual acoustic value of this partition. This constitutes a clear case of misleading advertising.
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Reviewed in the United States on September 30, 2025
★★★★★ 5
Partition Divider
Size: 5 Panels, Color: Grey
The Natwind 5-panel portable partition is ideal for creating privacy and dividing office space. At 122.8" x 71", it provides substantial amount of coverage, and the folding design makes it easy to set up, move, or store as needed. The freestanding structure is stable. The acoustic panels are quite thick at about 1/2in thick and help reduce noise. Its neutral color and design blends well with most office interiors. Overall, this partition is a convenient and effective choice for temporary or flexible workspace layouts.
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Reviewed in the United States on September 5, 2025