Ariane Locat’s Post

Proceedings of 1st International Conference on Geotechnics of Tailings and Mine Waste

In this month’s GRACast, John Lambie and I will present results of work we did using #TEM, #CPT, and #NMR logging to evaluate managed aquifer recharge viability at a field site in California’s Central Valley. Managed aquifer recharge techniques have gained a lot of attention as a tool for meeting groundwater sustainability goals, and geophysical tools can help us implement these techniques in a responsible manner. Check it out! Register here: https://lnkd.in/gRYYbBwb #TEM, #NMR, #CPT, #geophysics, #MAR, #hydrogeology

[ALPINISTIC ENGINEERING-GEOLOGICAL MAPPING] This autumn, we visited the beautiful town of Omiš, where we conducted alpinistic engineering-geological mapping of unstable blocks on the cliffs along the county road. 👷♂️ 👉 The cliffs reach heights of up to 200 meters, and their specific geometry, geological characteristics of the rock mass (including the orientation and condition of discontinuities and block size), and external erosive factors influence the occurrence of potential instabilities. Based on the collected data and analysis, we made an engineering-geological report, which will serve as the basis for the slope protection design. 🤓 #geotechnicalenginnering #geotechnics #mapping #cliffs #instabilities #slopeprotection #geotech

I will present my paper in GeoMontreal and will be happy to see you there! #GeoMontreal2024 #Geotechnical #Hydrogeology #Environmental #Ontario

This will be a really interesting talk looking at the potential pitfalls in topographic surveys and how to get what you need from your survey.

Kelford (Kel) Mitchel, part of RRG Nature Based Solutions's water team, joined the world's top experts in groundwater recharge at the Biennial Symposium on Managed Aquifer Recharge (BSMAR) in Tucson, AZ. During the symposium, Kel engaged in discussions on a variety of cutting-edge topics, including: 💧 Advanced methods for assessing land suitability for recharge potential using geophysics. 💧 Innovative solutions to address regional groundwater declines amidst climate change challenges. 💧 Case studies on enhancing the productivity of aging recharge facilities. Technical sessions were led by renowned hydrogeologists, well-drillers, and researchers from across the globe. It's events like BSMAR that keep Kel and our team at the forefront of groundwater management, ensuring we're equipped to help our clients face the growing challenges to their groundwater resources. This knowledge is crucial for meeting our clients' needs in combating the global strain on groundwater resources and ensuring the sustainability of operations that depend on this vital resource. Arizona Hydrological Society #NatureBasedSoultions #GroundwaterManagement #GroundwaterRecharge #ClimateChangeMitigation

The recent #floods in Poland unfortunately remind us of the need to #monitor and #diagnose #safety-critical #infrastructure such as #dams, #levees and #reservoirs. To assess their technical #condition after these extreme events, we need effective #diagnostic solutions that can provide a comprehensive picture of the structural #integrity of large-scale facilities - not just at selected points. Among other things, this will help to detect #leakages at an early stage. Our team headed by Szymon participated in two research projects that resulted in two papers on #distributed #acoustic #sensing (#DAS) to monitor the condition of #earth #structures. This innovative approach is a step towards safer and more resilient #infrastructure. 📖 Imaging of Temporal Changes in Large Scale Critical Objects – Earthfill Dam in Rybnik https://lnkd.in/di6yAD-B 📖 Multi Survey Investigation of Active Seismic Techniques for Environmental Seismology https://lnkd.in/dVFj4_bf #safetyfirst #opticalsensors #distributedsensing #monitoring #structuralmonitoring #healthmonitoring #earthstructures #flood #leak #leakdetection #damagedetection #vibration #technicalassesment #diagnostics

On the road to Lisbon! #ECSMGE2024 Stopover #2/8: Consolidation For geotechnical practicioners, CESAR offers drained or undrained conditions or fully-coupled consolidation for settlements analysis. In this tutorial, we are detailing how to generate this type of analysis with CESAR 2D. Link: https://lnkd.in/e_2aJVMT #ecsmge2024 #geotechnics #feaforgeotechnics #soilmechanics SPG Sociedade Portuguesa de Geotecnia International Society for Soil Mechanics and Geotechnical Engineering (ISSMGE)

“Origin of the Amazon River”   At the confluence of the Marañón and Ucayali rivers lies the origin of the mighty Amazon River. Remote sensing and detailed hydrodynamics, sediment transport and bed morphology analysis under different hydrological conditions have been recently applied to better understand the control mechanisms of the modern confluence. Results showed that: 1) meandering confluences existed when bifurcated meandering channels from the Marañón River joined the meandering Ucayali River; 2) far-field scale provided the boundary conditions for the near-field scale processes; In the case of the Marañón River, the spatial frequency and displacement of incoming anabranching structures to the confluence location set the boundary conditions for the near-field scale.  For the Ucayali River, hydrodynamics and bed morphology are governed by far-field processes such as the occurrence of cutoffs. 3) high intensity secondary flows at large rivers were observed at both far- and near-field scales, where previous studies have reported weak secondary flows, weak or nonexistent flows, or those mainly occurring downstream of confluences; and, 4) even though the Marañón River is larger compared with the Ucayali River, the confluence hydrogeomorphology is governed by the Ucayali River because of more developed and stronger secondary flows. Please see Guerrero et al. (2024) in Earth Surface Processes and Landforms, “Hydrogeomorphology of the origin of the Amazon River, the confluence between the Marañón and Ucayali rivers”

𝐔𝐧𝐝𝐞𝐫𝐬𝐭𝐚𝐧𝐝𝐢𝐧𝐠 𝐭𝐡𝐞 𝐎𝐜𝐞𝐚𝐧 𝐅𝐥𝐨𝐨𝐫: 𝐀 𝐂𝐫𝐢𝐭𝐢𝐜𝐚𝐥 𝐒𝐤𝐢𝐥𝐥 𝐟𝐨𝐫 𝐒𝐮𝐫𝐯𝐞𝐲𝐨𝐫𝐬 As a surveyor, having a deep 𝐠𝐞𝐨-𝐮𝐧𝐝𝐞𝐫𝐬𝐭𝐚𝐧𝐝𝐢𝐧𝐠 𝐨𝐟 𝐭𝐡𝐞 𝐨𝐜𝐞𝐚𝐧 𝐟𝐥𝐨𝐨𝐫 is crucial for a variety of applications, from safe navigation to resource exploration and environmental conservation. The complexity of undersea terrain, such as ridges, trenches, and submarine channels, influences everything from the placement of underwater infrastructure to the success of environmental management projects. For instance, in a recent 𝕠𝕗𝕗𝕤𝕙𝕠𝕣𝕖 𝕨𝕚𝕟𝕕 𝕗𝕒𝕣𝕞 𝕡𝕣𝕠𝕛𝕖𝕔𝕥, accurate bathymetric surveys and an understanding of the ocean floor's geomorphology were essential. These surveys were critical in determining the optimal locations for turbine foundations, ensuring they were built on stable, low-risk areas with minimal environmental impact. Without a thorough understanding of seabed conditions, the project could have faced costly delays, increased risk to infrastructure, and potential harm to marine ecosystems. 📖 Reference: Calder, B. R., & Gardner, J. V. (2007). "Seafloor Mapping: Future Directions and the Role of Geomorphology." Marine Geology, 242(1). #OceanMapping #Surveying #Hydrography #Geoscience #Bathymetry #MarineGeology #OffshoreProjects #SustainableDevelopment