The Christ Church City Council has issued a notice banning entry to over 500 homes because of risks associated with rockfall, landslides, cliff collapse and other geotechnical problems exacerbated by recent earthquakes. [Source: Scoop News]
Links
California Geotechnical Engineers Association
With over 100 member firms from both northern and southern California, CGEA is California’s premier organization for geotechnical firms. Visit California Geotechnical Engineers Association
Standards and Codes
ASTM Updates September 2009
This post contains a summary of geotechnical, materials testing, geosynthetic and related testing standards that were updated by ASTM during the month of September. This month there were not as many updates as the last couple, but a few that caught my eye are a new standard for measuring geosynthetic-soil resilient interface shear stiffness, a revision to the standard practice for laboratories testing concrete and concrete aggregates for use in construction and criteria for laboratory evaluation and a revision to the standard for measuring slump flow of self-consolidating concrete.
Geologic Hazards
Video of Buildings Swaying in Manila During Earthquake
The Philippines was hit by a 6.3 magnitude earthquake on April 22, 2019 and there is some interesting video of high-rise buildings swaying and of water from a rooftop pool cascading down to the ground. […]