CHANCE Helicals
CHANCE Helical Piling & Anchoring Systems
Intech Anchoring Systems is proud to represent the industry leading helical pile manufacturer in the world, HubbellPower Systems, A.B.CHANCE. The CHANCE® brand originated with the 1907 founding of A. B. Chance Company. Acquired by Hubbell® in 1994, the CHANCE brand is proudly manufactured in Centralia, Missouri. Hubbell Power Systems is the world’s leading manufacturer of helical piles and helical anchors, featuring the CHANCE brand system for the civil construction, electric utility, and telecommunications markets.
The CHANCE Company product line is perfect for a wide range of commercial, industrial, institutional and residential applications—from residential homes and commercial and industrial structures to earth shoring walls, communication towers, and bridges.
Founded in 1907, the A. B. CHANCE Company has been the international leader in earth anchoring. The CHANCE product line is a diverse deep foundation solution offering a wide variety of pile sizes. Offering numerous size allows you to customize the solution that best for project needs. All of them are also ISO 9000 certified and building code approved.
All CHANCE products are manufactured in the heartland of the United States in Centralia, Missouri. CHANCE is the oldest, largest, and most experienced helical pile manufacturer in the country. Intech Anchoring Systems maintains significant inventories of CHANCE products ready to ship to your next project. CHANCE helical piles are approved by all national building code agencies.
The CHANCE Helical Pile system offers a well-recognized and extremely cost-effective alternative to other pile systems and is backed by over 100 years of engineering experience. High-mobilization costs associated with driven piles, drilled shafts, or auger-cast piles are eliminated with the A.B. Chance product line. There is an instant torque-to-capacity feedback for production control.
CHANCE Helical Anchors are commonly used for tiebacks in earth shoring systems. In addition, helical anchors are used in anchoring basement foundation wall that are rotating under the forces of soil pressure. The versatility and cost effectivness of the CHANCE helical anchor make it an excellent option to consider for your next tieback or wall anchoring project.
CHANCE Helical Piles are used worldwide to secure residential and commercial buildings, tower foundations, heavy equipment foundations, and many other deep foundation applications. CHANCE Helical Pile systems are used to transfer the building’s weight to bearing “helical” plates driven into stable soil/strata. This patented system brings an economical solution to the underpinning industry. Fast, predictable, and with measurable installation torque are just three advantages of this building code evaluated, proven and widely accepted system.
The CHANCE Helical Pier Foundation System offers a technically superior and cost-effective alternative to other remedial systems. Our system is backed by more than 100 years of engineering experience and successful installations worldwide.
The CHANCE Helical Pulldown Micropile from Intech Anchoring introduces grout to form a column around the shaft of a conventional Helical Pile Foundation System. The CHANCE Helical Pulldown Micropile (HPM) brings the advantages of the pre-engineered helical pile to higher load applications, providing compression loads ranging up to 400,000 lbs. per pile. In addition, grout around the steel helical element provides for added corrosion protection which can be valuable where aggressive soil conditions exist.
Products & Applications
Intech Anchoring offers a wide variety of CHANCE products, including:
- Helical Anchors and Tiebacks
- Helical Piles
- Repair Brackets
- Helical Brackets
- Pile Caps
- Helical Piers
- Helical Pulldown Micropiles
The CHANCE product line can be utilized in the following applications:
- Foundation Underpinning
- Piling Systems
- Deep Foundation Systems
- Earth Shoring and Retention Systems
- Tieback Anchors
- Tiedowns
- Guy Anchoring
- Mooring
- Bulkheads and Seawalls
- Soil & Ground Screws
- New Construction
- Micropile Systems
- Wall Repair and Anchoring
- Retrofit Foundation Construction and Repair
Chance Traceability Advantage
Beyond all of the applications of their foundation technologies, the CHANCE Company also comes with the inherent benefit of traceability. This means that they have tracking methods in place to know where and when every batch of products came from. If there is ever an issue or concern with the quality of their products, they can trace every piece back to the facility where it was manufactured. This layer of quality control adds security and peace of mind for our partners.
To take advantage of Intech Anchoring’s expertise and find out which CHANCE products are right for your project, contact us today.
CHANCE Helical Anchors
CHANCE Helical Anchors extend bearing plates “helicals” through soft, loose, or expansive surface soils into stable strata with minimal disturbance. Discover the predictable, cost-effective, quickly installed alternative to traditional uplift restraint methods.
Helical anchors are commonly selected for earth anchoring applications because they are quick to install and can be proof-tested and loaded immediately with no concrete to cure, spoils to manage or de-watering of the excavation. Helical anchors are often chosen over traditional anchoring methods such as concrete deadmen or grouted anchors to overcome limited accessibility or the presence of a high water table.
Helical Tiebacks from CHANCE
A helical tieback anchor is a segmented deep foundation system with helical bearing plates welded to a central steel shaft. The load is transferred from the shaft to the soil through these bearing plates.
Tieback anchors are installed by rotating the anchors into the ground with rotary drilling equipment. Once the minimum depth is reached, the capacity can be determined by reading the installation torque and correlating it to the holding capacity of the pile.
Benefits of Using CHANCE Helical Anchors
- High production capabilities
- Predictable results
- Cost-effective
- Minimal vibration or displacement of soil during installation
- Minimal site disturbance
- Instant loading capability
- Installation Torque continuously monitored
- No spoils removal (ideal for contaminated site conditions)
- Easily installed in areas with limited access
Helical Anchor Installation
CHANCE Helical Anchor Installation Overview
A helical anchor can be used to resist tensile loading. For these tension-specific anchor applications, square shaft helical anchors are the logical choice. The helical anchor is segmented with helical bearing plates welded to a central steel square shaft.
The load is transferred through the shaft to the soil through the bearing plates. Anchors are coupled together with integrated couplings, and the only limits to installation depth for these anchors are soil conditions such as density. Intech Anchoring has an engineering team available to review soil data to help determine the right helical configuration and the proper depth required for a successful installation.
The helical plates are formed with a proper pitch so they do not auger but rather screw into the soil with minimal disturbance. Helical bearing plates have a standard 3″ pitch with engineered spacing between the helix plates to enable each plate to bear their load independently of one another. This helical spacing on the lead segment of the pile is critical so that the load capacity of one helix is not influenced by adjacent plates.
CHANCE Helical Wall Anchoring System
The success of the Helical screw anchors is based on decades of similar use of CHANCE anchors by electrical utilities. The proven reliability and engineered predictability of the system’s performance give you anchors that are permanent, economical, and hassle free. Engineered for dependability and long-term stability, the CHANCE Helical Wall Anchor System features exclusive anchoring techniques, tools, designs, and sizes that make other foundation methods a thing of the past. It provides a smart, cost-effective solution for bulging, bowing, or cracked basement and foundation walls.
There is no grout required, so installed anchors can be tested immediately, and concrete trucks or grout pumps are not necessary as with other systems. They can be installed in almost any weather using conventional drilling equipment. CHANCE Anchors from Intech Anchoring have predictable holding strength in all soils.
The A.B. Chance Helical Wall Anchor System components for residential basement and foundation wall repair include a Lead Helix Plate, Segmented Extension(s), Anchor Termination, and Wall Plate (or steel beam for concrete block foundations).
Typical installation steps for Residential Basement Wall Repair include:
- The foundation is prepared for anchor installation by drilling 3″ diameter holes at each anchor location from the inside to the outside.
- A segmented extension is inserted through the cored hole where a helix plate is bolted to the extension shaft.
- After the helical anchor is screwed into the inactive soil zone and proper installation torque is achieved, it is then extended through the drilled hole in the wall where it can be terminated.
- From the inside, a steel wall plate (or a steel beam for blocked foundations) is attached to the anchor and tightly secured.
