CHANCE Helical Tiebacks
Since the early 1960s, CHANCE Helical Anchors have been used in the electric transmission industry as the primary guy anchor solution. Today, CHANCE Helical Anchors are finding increasing popularity in civil construction applications because of the versatility and cost effectiveness of this uplift (tension) restraint solution.
Helical Tiebacks from CHANCE
Benefits of Using CHANCE Helical Anchors
Helical Anchor Installation
CHANCE Helical Anchor Installation Overview
A helical anchor is used to resist tensile loading. For these tension-only anchors, 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 couplings, and the only limits to installation depth for these anchors are soil conditions such as density. Engineers can achieve whatever depth makes sense economically.
Since the plates are helical, they do not auger but rather screw into the soil with minimal disturbance. Helical bearing plates have a standard 3″ pitch and are spaced at far enough distances that they bear load independently of one another; therefore, the load capacity of one 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 walls.
There is no grout used, so installed anchors can be tested immediately, and concrete trucks or grout pumps are not required. They can be installed in almost any weather using conventional drilling equipment. CHANCE Anchors from Intech Anchoring Systems have predictable holding strength in all soils.
The CHANCE Helical Retaining Wall Anchor System components include Lead Helix, Extension(s), Anchor Termination, and Wall Plate (or C-channel for blocked foundations).
The installation steps include:
To learn more about the details and applications of CHANCE Helical Anchors, contact Intech Anchoring Systems today.