Micropiles are applicable when there are problems with using conventional deep foundation systems. These problem conditions include: obstructions, adjacent structures, limited access job sites, and other shaky areas like caves, sinkholes, underground rivers. For example, micropiles are commonly the preferred foundation choice in the challenging areas that feature nearby buildings and difficult access.

The unique characteristics of micropile offers advantages when other deep foundation systems are not applicable include:

• Limited access situations due to size of equipment
• Environmentally sensitive projects because they create relatively little disturbance to the surrounding area
• Seismic Retrofit
• Arresting Structural Settlement
• Resisting Uplift/Dynamic Loads
• Underpinning
• Reticulated Pile Wall

Installation techniques vary depending on the load bearing specifications of the project. The selection of the installation technique depends largely on soil conditions and load transfer requirements.

Common Uses of Micropiles

• To replace deteriorating foundation systems
• To provide extra support for structures during renovation
• To provide pile foundations where access, geology or environment prevent the use of other methods
• To support structures affected by adjacent excavation, tunneling or de-watering activities
• To provide a fast, effective alternative to more traditional underpinning methods

MICROPILE CASING

Micropiles, also called mini piles, are often used for underpinning. They are also used to create foundations for a variety of project types, including highway, bridge and transmission tower projects. They are especially useful at sites with difficult or restricted access, or with environmental sensitivity. Micropiles are typically steel pipe with diameters 8-5/8",9-5/8",13-5/8” diameter and larger with usually several wall sizes for each diameter. Pipe can be plain ends or threaded sections. Various grades and strengths of steel are available. Pipe can be prime mill certified, new mill secondary, or used. Installation of micropiles through soil, sand, gravel and cobbles and rock can be achieved via many methods including Rotary drilling, impact driving, jacking, and vibrating.

Available size

PIPE CASING STARTER 9-⅝” X 0.472” wall, available Length 10'

PIPE CASING MALE X FEMALE 9-5/8"X 0.472" wall, available length 5' , 10' ,15'

PIPE CASING STARTER 9-5/8 X 0.545" wall, available length 10'

PIPE CASING MALE X FEMALE 9-5/8 X 0.545" wall, available length 5' , 10' ,15'

PIPE CASING STARTER 8-5/8 X 0.5" wall, available length 10'

PIPE CASING MALE X FEMALE 8-5/8" X 0.5" wall, available length 5' , 10' ,15'

PIPE CASING STARTER 13-3/8" X .514" Wall, available length 10', 20'

PIPE CASING MALE X FEMALE 13-3/8" X .514" Wall, available length 10', 20'

PIPE CASING RAW 13-3/8" X .514" Wall available length 40'