SCOPE OF SERVICES

NDRC	MICRO TUNNELING PIPE JACKING TRUST BORING
PILED FOUNDATION	BORED PILE (FULL LENGTH ROTARY CASING METHOD) BORED PILE (KELLY DRILLING METHOD) MICRO PILE BARRETTE PILE UNDER PINNING PILE DRIVEN PILE
SLOPE STABILITY	DYNAMIC COMPACTION VIBRO COMPACTION CEMENT PRESSURE GROUTING CHEMICAL GROUTING JET GROUTING
BASEMENT CONSTRUCTION	EARTH WORKS PILE CAP WORKS R.C. WORKS
RETAINING SYSTEMS	CONTIGUOUS PILE WALL SECANT PILE WALL DIAPHRAGM WALL SOLDIER PILED WALL SHEET PILED WALL JET GROUTED WALL TIE BACK ANCHOR INTERNAL STEEL STRUT
SLOPE STABILITY	SOIL NAIL ROCK ANCHOR

Pile caps distribute axial loads evenly over individual piles in a group. However when a group of piles is subjected to a lateral load or a combination of vertical and lateral loads the resulting moment forces are taken into account during calculation of load distribution. Several factors are taken into consideration when designers select pile types, grouping and distribution:

The loads that the foundation system will carry (magnitude and direction)
Load-bearing capacity of the foundation soil and all other pertinent geotechnical data
Safety factors to be incorporated into the design
The type of structure being built
Special design needs, such as resistance to vessel impact or seismic forces
All relevant codes, standards and project specifications
All applicable statuary and regulatory requirements.

Pile foundations develop their load carrying capacity by transferring the loads to the bearing ground. End-bearing piles transfer these loads to the hard strata or rock where it rests, while friction and cohesion piles transfer loads to the adjacent ground grabbing the surface of the pile through skin friction. Designers rely on any or a combination of both of these supports in their design.