Static load tests can be performed to validate foundation design assumptions regarding the axial compression or axial tension resistance provided by a deep foundation element, or its deflected shape under a lateral load.
PDI's SLT automatically obtains and records reliable readings at programmable load intervals during a static load test. The system allows for monitoring of up to 256 independent channels (192 analogue and 64 digital) taken from traditional pile-top measurements or from embedded sensors connected to PDI data acquisition box with smart universal inputs.
Each data acquisition box can accept up to 16 independent channels with up to 16 data acquisition boxes connected together to the SLT at once with wireless configuration for easy set up and remote operation. This automatic data collection and display allow real-time monitoring, analysis and interpretation of results.
Conventional readings of the applied load determined from the jack pressure gage and load cell, and deep foundation head movement determined by LVDTs, digital dial gages or mechanical dial gages can be combined with the SLT to determine the capacity or nominal soil resistance, the load-transfer behaviour under axial loads, or deflected shape under lateral loads. The SLT also reads strain gages and Vibrating Wire gages.
The SLT Tablet is equipped for high-speed internet access and remote operation, error checking and updating. Offering real-time graphical presentation of load, strain, displacement and pressure measurements, the SLT operates in traditional, SI or metric units.