I came across this interesting product for structural/geotechnical monitoring of cracks in 3 dimensions. Most crack monitors are designed for monitoring in 2 dimensions, this one can measure movement out of the plane of monitoring. I like that the markings are laser-etched so the simple device should last for a long time. Price is $40/each from Quality Plus Engineering, LLC.
Project Related
Video: DeWind One-Pass Trenching – Hill AFB Contamination Project
This project video seems a few years old, but it’s relatively new on YouTube and it’s a fantastic case study of the slick method of installing groundwater interception trenches using DeWind’s remarkable one-pass trenching technology. […]
Available Resources
2014 Seed Lecture – Developments in the Assessment of Liquefaction Potential and Its Consequences
2014 Seed Lecture: Developments in the Assessment of Liquefaction Potential and its Consequences, presented by W.D. Liam Finn, Ph.D.,P.Eng., Life.M.ASCE, Professor Emeritus, University of British Columbia at the 2014 Geo-Congress in Atlanta, GA, USA. [Source: […]
Failures
Tunnel Collapse Caught on Video
According to the site Geotechpedia, this tunnel failure occurred on November 29, 2016 around 9am (local time?). The tunnel is located in Yusufeli district of Erzurum in northeastern Turkey. It is somehow related to the […]