Monitoring the Performance of Mechanically Stabilized Earth (MSE) Walls
A research is underway in the University of Texas at Arlington to monitor the performance of Mechanically Stabilized Earth (MSE) walls. This research aims to develop a methodology to be used for that purpose. The proposed concept consists of using the following techniques:
The following techniques and tests were performed:
3D Robotic Laser “SX 10” Scanner:
This machine will be used to record the movement on a timely basis of the precast concrete panels that exhibit significant movement. It will be achieved through installing control points and back-sights on fixed objects for the instrument setup, and targets on the critical panels.
Crack-Meters:
The relative movement between the critical panels will be recorded using this device.
Resistivity imaging (RI):
This technique will be used to obtain soil profiles of the backfill soil and check whether it has a good drainage system or not. For that purpose, multiple RI scans will be conducted at different times throughout the year to check for presence of water pockets.
Backfill Soil Testing:
Boreholes will be drilled atop the MSE walls and soil samples will be obtained for testing. The performance of MSE walls may be affected by the status of the backfill soil. Therefore, the backfill soil must be checked with its corresponding soil specifications.
