Vertical Wall with Concrete Panels Facing and Geostrips Reinforcement: Instrumentation and Data Reduction

摘要

Vertical walls with concrete panels facing and polyester geostrips reinforcement is an emerging technology in USA and commonly used technology in many countries worldwide. To facilitate the acceptance of such a wall system in the USA, reinforcement wall has been fully instrumented in the State of Delaware. The instrumented wall is part of an abutment in a complex new interchange constructed in Christiana which is subjected to heavy traffic The instrumentation program included: a 4 bars soil extensometers; load cells at facing panels - geostrips connections; load cells on geostrips; pressure cells horizontally placed at the bottom of the reinforced soil structure; pressure cells vertically placed against the concrete panels; and temperature sensors. The paper describes this advanced instrumentation program, provides a synthesis of monitoring the first stage of construction and presents a first interpretation of data.