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Tag Archives: home foundation repair Montgomery County MD

Helical Pier Technology & How Helical Tiebacks Work

Helical piers are so important we are revisiting this blog topic with some new information.

When your home settles, there is an engineered repair method for home foundation support. Most home foundations will settle after several years or decades depending on the weather, soil or quality of workmanship.

helical piers used in construction

The helical pier technology underpins a settling structure by raising it and supporting it. If the house is heavy, piers will be closely spaced. Load-bearing walls are heavier to underpin, too.

Also, the placement of the helical piers depends on the weight of the home, home foundation condition and the type of pier. Your home foundation repair contractor will consult you on the proper helical pier to use.

One method of helical piers technology is known as “helical tie backs”. Tiebacks anchor or support basement walls that are bowing, leaning or unsound.

Helical tiebacks are installed like this:

  1. A hole is drilled into the basement wall and a helical shaft is inserted.
  2. Then a helical screw anchor is installed.
  3. After finding the correct bearing depth, the wall plate is installed.
  4. The plate is tightened against the helical anchor bringing the wall back to its original location.
  5. The soil is then backfilled to the basement wall.

Helical tiebacks are an effective method of supporting damaged walls. They do not support a home foundation that is settling. You will need to work with a home foundation engineer to correct that. (We covered that topic in this blog.)

However, helical tiebacks are usually installed quickly and efficiently. They are load tested to verify the capacity and they can be loaded immediately after being installed. If your soil is sinking or unstable, helical tiebacks can also be installed.

Helical pier technology has many advantages and methods, more of which we will cover in future blogs. Consult your licensed home foundation engineer for the best method for your home foundation.

M Taylor Enterprise installs both helical piers and helical tiebacks. Call our experienced engineers for a consultation. We will analyze your home foundation issue and efficiently repair it. Call us for a consultation at (301) 649-3406 or email us at matt@mtaylorenterprise.com. We serve the Montgomery County, MD area.