Improvement for Underground Construction: The Good, the Bad and the UglyGround Improvement for Groundwater ControlFreezing Under the Fraser RiverDepression at Nesbitt Dam

Ground Improvement for Groundwater Control

This informative article discusses how understanding of the behavior of soils and groundwater is crucial to allow the right ground improvement choices to be made and presents available methods and their suitability to site-specific conditions.

Freezing Under the Fraser River

A detailed discussion of the design, construction and complex logistics involved in emergency liquid nitrogen ground freezing deep under the Fraser River in Vancouver, Canada, to stabilize the face of a stalled TBM and allow safe access for repairs to be conducted.

Depression at Nesbitt Dam

An in-depth presentation of the emergency response dewatering and grouting required to remediate and restore stability to an earthen dam structure.