Center-hole load cells are designed to measure loads in tiebacks, rock bolts, and cables.

Typical applications include:

• Proof testing and performance monitoring of tiebacks, rock bolts, and other anchor systems.
• Monitoring loading of vertical supports in underground openings.

Total pressure cells measure the combined pressure of effective stress and pore-water pressure. In general, pressure cells are used to verify design assumptions and to warn of soil pressures in excess of those a structure is designed to withstand.

Typical applications include:

• Determining the distribution, magnitude, and directions of total stresses in an embankment or in the clay core of a dam.
• Confirm that tailings material is densifying at design rate.
• Estimate overburden pressure acting on foundation.
• Measure contact pressures in abutments and foundations.
• Measure stress fields in shotcrete.