Abstract:
This presentation will demonstrate some recent advancements in the applications of Project Information
Systems (PIMS) technology to seepage barrier walls in the context of evolving Owner Specifications. The
use of geospatial technology in particular is used to track, visualize, and analyze data from a variety of
sources and serve those data to contractors and owners via dashboards and as-built drawings. Data
describing the geometry of construction elements (including diaphragm panels, secant piles, and jet grout
columns) is of particular importance on these projects, and this presentation will include case studies in the
United States of how these data are used to determine if a barrier wall is constructed as designed and if it
meets the owner specifications with respect to tolerance (i.e., if each element is sufficiently close to vertical)
and overlap (i.e., do adjacent elements overlap sufficiently to prevent leakage).