Monitoring of construction operations by an experienced engineer or technician is an effective method for detecting construction materials problems, identifying inappropriate construction methods or assessing future performance of constructed components. In addition, many designs and remediation methods must be modified in the field based on observed conditions unique to each situation or not ready identifiable by prior exploration. Construction elements monitored by GEM include:
Shot-Rock Fill Placement –With full-time monitoring, we can evaluate the suitability and acceptability of durable shot-rock as a structural fill, provide alternatives for construction equipment/procedures, and solutions to problem areas.
Deep Foundations – We monitor the installation of drilled piers (caissons), steel H-piles, displacement piles, auger-cast piles, and wood timber piles, as well as load tests on the installed product in accordance with recognized industry standards.
Specialty Pile Installation – These services involve monitoring and observation of micro (mini) piles, helical piles, stone columns, and other speciality piles. Our experience with these types of piles provides us the ability to evaluate their acceptability through the use of industry standards and proprietary methods.
Post-Tensioned Concrete – We observe tension cable layout, form clearance, steel reinforcement size and pattern prior to and during concrete placement as well as concrete quality control testing. We monitor post stressing activities and document cable elongation for subsequent evaluation.
Ground Improvements – We monitor and document deep, soil improvement procedures (soil grouting, deep dynamic compaction, vibro-densification, etc.) and subgrade improvement methods (lime/cement stabilization, geotextiles and grids).
Geosynthetic Liner Installation – We monitor various types of geosynthetic clay liner, and high density polyethylene liner systems. GEM involvement with these systems includes the underlying clay support systems, the monitoring and testing of the geosynthetic and HDPE liner systems during installation including laboratory analysis.