Faelinn Alexandria’s Post

Surface roughness is a key parameter in terrain analysis, offering insights into natural processes and geophysical features. Our survey highlights areas of high roughness, depicted in purple on the map, indicating increased landslide risk due to unsettled terrain. #SurfaceRoughness #TerrainAnalysis #LandslideRisk #infrastructure #construction

This 'Guess the Location' is set quite distinctively at a train station in the UK, but which one is it? We've recently worked nights here last week, and have all the information coming this week! 🚆 1. There's a secret train service called a 'parliamentary train service', which runs from this station to West Ruislip once a day on weekdays. It's unadvertised and unannounced, and usually is a ghost train, as only one or two civilians ever use the service. It's actually ran to keep certain lines open, without them, the train operators would have to close the route, something that is costly and has to go through parliament, hence the name. 2. When this station was opened in 1854, the roof consisted of three arches, or spans, making it the largest train shed roof in the world at the time. In 1916, cover was needed for platforms 9-12 (now 9-16), so a fourth span was added. Surprisingly, Brunel's original glass roof survived until the 1990s, when it was replaced by polycarbonate panels in a refurbishment. 3. There are steep wooden ramps opposite the station, particularly the Mint Wing. They're remnants from the days when the building housed multi storey stables for the horses that worked on the railways - up to 600 horses at any one time. The building remained as stables until the 1950s when it became a research laboratory. So there you have it, if you haven't heard about our latest travels already, then give this one a go! Or just sit back and admire the unusual facts. Good luck! #AGS #AGSGroundSolutions #geotechnical #civilengineering #landscape #guessthelocation #geotechnicalengineering #structuralengineering #geotechnics #geology #surveying #geotech

The part of the highway that failed was fill dirt. They're replacing it with fill dirt, but adding a buttress half-way down the slope. This is an engineer's solution, constrained by budget. A geologist's solution would be a more expensive bridge -- we know how soft fill is. What do you think? #landslide #teton #highway #geology #geologist #civilengineering https://lnkd.in/gJ7bz4K8

The recent completion of the Rockfall Mitigation Project along US 340 in West Virginia marks a significant milestone in enhancing safety and connectivity in the region. Led by Access Limited, a prominent rockfall mitigation firm, and Triton Construction Inc., the project was finished nearly two weeks ahead of schedule despite expanded scope requirements. Activities encompassed stabilizing the corridor through rock slope scaling, hazard removal, and rock bolting, along with repairing damaged pavement and guardrails. Additional measures like draped and pinned mesh, ground-level rockfall barriers, and on-slope attenuator systems were installed to minimize future rockfall risks. With the area's historical importance and high traffic volume, the project aimed to ensure safe passage for the estimated 24,500 daily vehicles, including commuters and tourists. Access Limited Construction, now a part of GeoStabilization International®, showcased its expertise and commitment to safety, completing the project efficiently while contributing to reduced carbon emissions from diverted traffic. #rockfallmitigation #geology #geotechnical #geotechnicalengineering

The landslides in Rancho Palos Verdes are a dramatic example of Southern California's unstable soil and geologic conditions. Since much of Southern California was developed before the advent of current planning restrictions, building codes and geotechnical analytical tools, many of us live in homes with the potential for long-term foundation problems. Cracks in your floors and walls, soil moving away from your foundation, and sticking doors and windows are all signs that the ground below your home or business may be moving or settling. Usually, these issues are local in nature or result from poor construction and can be mitigated with foundation reinforcement or retrofitting. However, as in Rancho Palos Verdes, there are also early signs of areal movement, affecting multiple properties and causing significant damage. Be aware of changes in your home, business and property that could indicate ground movement. Consult with an experienced geologist or #geotechnicalengineer if you need to, and trust your gut! #SouthernCalifornia #UrbanPlanning

Isle of Wight Confronts Major Landslide Threat Background: Bonchurch, Ventnor, on the Isle of Wight, experienced a massive landslide on 10th December, Scale: The landslide affected a 42ha area, displacing about 14M.m3 of material. Approximately 20 properties evacuated. Impact: The Isle of Wight Council warns of potential further ground movements. While most residents returned home, a few still face displacement risks. Response: Ongoing monitoring and emergency measures are in place. Another landslide hit nearby Luccombe village, highlighting the area's geological vulnerability. Cause: Prolonged wet weather and stormy seas have weakened the cliffs, raising the risk of more landslides. Historical Context: The area is a known landslide hotspot, with a history dating back to the Last Glacial Period, 11,700 years ago. Expert Insight: Prof. Roger Moore, Jacobs' geoscience expert, highlights the correlation between rainfall and landslide occurrences in the region. Advice: The council urges people to avoid landslide sites for safety. #civilengineering #isleofwight #geotechnicalengineering [Source: New Civil Engineer]

Analyzing slope values is pivotal in understanding terrain characteristics and landslide susceptibility. Our survey reveals that areas with high slope values, depicted in purple on the map, are prone to landslides due to the steep terrain. #SlopeAnalysis #LandslideSusceptibility #TerrainCharacteristics #infrastructure #construction #Satellite

The New Austrian Tunneling Method (NATM) is an innovative approach to tunnel construction that leverages the geological conditions and inherent strength of the surrounding rock mass to stabilize the tunnel. Developed in the 1950s, NATM emphasizes the importance of monitoring and adapting to the actual ground conditions encountered during excavation. Key features of the method include the use of shotcrete (sprayed concrete), rock bolts, and steel ribs to support the tunnel, while the deformation of the surrounding rock is carefully observed and measured. This observational approach allows for adjustments in support systems as needed, optimizing safety and cost-efficiency. NATM is particularly effective in heterogeneous and challenging geological environments, making it a widely adopted technique in modern tunneling projects. https://lnkd.in/gzX2Qi8w

Terns Appreciate the Rubble.  With the end of MSC’s aerology program on Sable Island in 2019, the building housing the hydrogen generator and the balloon inflation room was no longer in use. During October 2023, the structure was demolished, and most materials were shipped off the island for disposal. Only the foundation - a concrete platform, as well as concrete blocks and chunks - was left at the site to reduce exposure of unvegetated sand surfaces and to provide enhanced nesting habitat for terns and petrels. Mission accomplished! The rubble is busy with terns nesting, chicks hiding, and adults standing about surveying their domain. And at night the calls of the gentle Leach’s Storm-petrels indicate they are in the area (although perhaps keeping clear of the terns). The large input of tern feces ensures that there will be a burst of enthusiastic vegetation growing in and around the site next summer. The first photo (July 2016) shows MSC summer tech Kathryn Binnema preparing a hydrogen-filled balloon for a morning radiosonde launch.  Photos Zoe Lucas.  For more about the aerological program on Sable Island: https://lnkd.in/eK8T5VCc #SableIsland #NorthAtlantic #Terns #nestinghabitat #demolition #habitatrestoration  #radiosonelaunch #aerologyprogram  #MeteorologicalService #MeteorologicalServiceofCanada       #sableislandnpr #parkscanada  #sableislandnationalparkreserve

"In the so-called critical sections of the river, intensive morphological changes are observed and the trajectory of the shipping route often changes. Forecasting sediment movement would help: For timely moving of the marking signs according to the greatest depths. To assess the need for future dredging activities. To assess the needs for trawling and cleaning the waterway. To design engineering facilities. To select a location for seizing alluvial deposits from the Danube River for commercial purposes. For all permits related to the use of a water body, predicting the location of anchorages, winter shelters, etc." https://lnkd.in/dNdbR9zM