Varicon Aqua’s Post

❗❗Thermokarst project ❗❗ #Ventilated caves and the epikarst fractures are representatives of karstification processes which are the interplay of water and airflow with karst massifs. Understanding these karst systems can provide important information about the structural, hydrogeological and geothermal features of underground processes. The #thermokarst_project aims to investigate these thermal aspects of karst. Through the systematic comparison between the field data, gathered in different Swiss caves, and the numerical modelling this project wants to quantify the amount of energy exchanged within cave systems, especially between cave walls and air. #Caves can be seen as an interface between the atmosphere outside and the atmosphere deep within the karst massif. These two atmospheres have different physical characteristics, such as temperature, density and pressure, and tend to balance each other. Warm air has a lower density than cold air, so a volume of warm air immersed in a cold atmosphere will tend to rise. Conversely, a volume of cold air immersed in a volume of warm air will tend to "fall". In winter, the temperature of the atmosphere inside a cave is higher than the temperature outside, so the atmosphere in the cave is this volume of warm air immersed in a volume of cold air, and will therefore tend to rise. If the cave has several entrances at different heights, the warm air inside will begin to rise towards the highest entrance of the cave until it emerges into the outside atmosphere. So, in winter, the highest inlets will blow the warm air from the cave outwards, while the lowest inlets will draw in cold air from outside to replace the air that escapes. In summer, however, exactly the opposite happens: when the outside air is warmer, the cold air in the cave tends to 'fall' towards the lower inlets and escape. This phenomenon is reflected in the air currents inside the cave. Unlike many drill holes showing the vertical #temperature gradients in non-karstic rocks is close to 3 ℃/100m, this value is 0.4 ℃/100m on average in karst vadose zones c. This gradient corresponds to a normal adiabatic gradient for humid air. This can increase the probability of the claim that the airflow convective heat flux is dominant in ventilated caves. This flux, in turn, can propagate into surrounding rock and change the temperature gradient for a certain distance. Additionally, the presence of a thin water layer on the cave wall produces evaporation cooling or condensation warming. These coupling mechanisms encourage us to generalize a conceptual thermal model for qualitative evaluations and after that develop a numerical model for quantitative analysis. ❗❗ New article by Claudio Pastore as part of the Thermokarst Project  : Dispersion of artificial tracers in ventilated caves ❗❗ Link : https://lnkd.in/eJ72KkTw

📎 Vibroflotation, also known as vibroflot, is one of the methods of ground improvement that involves the use of a stone column equipment to compact and densify the soil or foundation material. 📎 Vibro compaction top feed technique is convenient for medium to coarse-grained sand with silt content 📎 The compression quality can be monitored with a ”datalogger", so that depth, compression ratio, time-dependent compression and tensile processes, as well as the sand volume, can be measured and monitored. For Further Info: 📧 oms@omsvibro.de 🌍 www.omsvibro.com . . . . . . #VibroCompation #Vibroflotation #GroundImprovement #SoilImprovement  #ground #engineering #foundation #vibroreplacement #topfeedmethod #bottomfeedmethod #topfeed #bottomfeed #stonecolumnmethod #stonecolumnequipment #stonecolumn #omsvibro #construction #constructionmachinery #settlement #liquefaction #steelsheetpile #deepfoundation #excavationworks #piledriving #heavycivil #sheetpiling #steelpipe #heavyconstruction #groundworks #earthmoving

I officially present to you my bread and butter of storm inlet calculations, the Rational Rational Method (Dynamo Version). This workflow has taken WEEKS off of my storm design and I hope it does the same for you. The video may be a little long but I promise it is worth it. The four steps to optimize your rational process are: 1. Define Impervious Cover for your site 2. Calculate the time of concentration for each basin 3. Calculate 'c' values and flows by intersecting basins with your defined impervious cover 4. Export to hydraflow storm sewers to size your pipes Now available at https://lnkd.in/gse2Hpry #DynamoBIM #Civil3D #Hydrology #StormDesign #Autodesk Retrieve Technologies, Inc.

Introducing PRD Ultra Foam; Enhance your drilling efficiency with Ultra Foam – the advanced solution designed for superior lubrication and pressure control. Engineered to minimize friction and maximize drill bit performance, Ultra Foam ensures cleaner operations and longer-lasting equipment. Optimize your drilling process and reduce operational costs with Ultra Foam. Trusted by industry leaders, ready for your toughest challenges. Contact us; Tel; +255 749 490 890 Email; mohagachi@prdrigs.com . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . #UltraFoam #WaterWellDrilling #DrillWithEase #EfficientDrilling #AdvancedDrilling #SuperiorLubrication #PressureControl #MaximizePerformance #DrillingInnovation #IndustryLeaders #DrillSmarter #EcoFriendlyDrilling #HighPerformanceDrilling #CostEffectiveDrilling #DrillingEquipment #WellDrilling #WellDrillingTech #GroundwaterDrilling #DrillRig #DrillingOperations #SustainableDrilling #DrillBits #EnvironmentalDrilling #EcoDrilling #GreenDrilling #WaterResources #Groundwater #SustainableWater #WaterManagement #WaterIndustry #Hydrology #GeotechnicalEngineering #Geology #EarthSciences #CleanWaterSolutions #WaterConservation #WaterSupplySolutions #WaterWellSystems #DrillingSafety #SafeDrilling #FieldOperations #EnvironmentalImpact #Sustainability #RenewableEnergy #EnergyEfficiency #tanzania #kenya #uganda

Stope Atlas and Stope Notes in Sublevel Stoping: An example of a Stope Atlas for Longitudinal Stoping for those interested. 🙂 #UndergroundMining #GTE https://lnkd.in/gM2sT8M8

✨ 𝐖𝐡𝐞𝐧 𝐄𝐚𝐫𝐭𝐡 𝐒𝐡𝐨𝐰𝐬 𝐈𝐭𝐬 𝐏𝐨𝐰𝐞𝐫: 𝐓𝐡𝐞 𝐂𝐮𝐫𝐢𝐨𝐮𝐬 𝐂𝐚𝐬𝐞 𝐨𝐟 𝐂𝐨𝐧𝐟𝐢𝐧𝐞𝐝 𝐀𝐪𝐮𝐢𝐟𝐞𝐫𝐬 ✨ Imagine this: you're drilling a tube well in a dry area, and suddenly — boom! — an unexpected surge of water starts gushing out like a mini geyser. Looks dramatic, right? Well, this isn’t a freak accident. It’s a textbook example of groundwater science in action! 🔍 𝐖𝐡𝐚𝐭'𝐬 𝐡𝐚𝐩𝐩𝐞𝐧𝐢𝐧𝐠 𝐡𝐞𝐫𝐞? This scenario, captured during a tube well excavation in Mohangarh, Jaisalmer, is tied to a concept called 𝐜𝐨𝐧𝐟𝐢𝐧𝐞𝐝 𝐚𝐪𝐮𝐢𝐟𝐞𝐫𝐬. Here’s the science behind it: • 🌄 Confined aquifers are underground water reservoirs trapped between two impervious layers (like clay or dense rock). • 🔧 These layers keep the water under pressure — called artesian pressure. • 🏃♂️ When the upper layer is punctured (e.g., during drilling), the pressurized water flows upward, often with surprising force! 🤔 𝐖𝐡𝐲 𝐝𝐨𝐞𝐬 𝐢𝐭 𝐦𝐚𝐭𝐭𝐞𝐫? Understanding confined aquifers is critical for: • 📊 Groundwater management: Knowing where and how to tap into these resources sustainably. • 🏞️ Infrastructure safety: Avoiding damage caused by sudden water surges during construction projects. • 🌱 Agricultural planning: Ensuring reliable irrigation in water-scarce regions. 🖌 𝐊𝐞𝐲 𝐭𝐚𝐤𝐞𝐚𝐰𝐚𝐲𝐬: • 🌍 Confined aquifers highlight the interconnectedness of geological formations and water flow. • ⏳ Groundwater under pressure can be a boon or a challenge depending on how it’s managed. • 🚨 Events like these remind us why understanding hydrogeology is vital for engineers, scientists, and policymakers alike. 🎥 Unknown (DM for credits). *𝘊𝘰𝘱𝘺𝘳𝘪𝘨𝘩𝘵𝘴 𝘧𝘰𝘳 𝘵𝘩𝘪𝘴 𝘷𝘪𝘥𝘦𝘰 𝘣𝘦𝘭𝘰𝘯𝘨 𝘵𝘰 𝘵𝘩𝘦 𝘳𝘦𝘴𝘱𝘦𝘤𝘵𝘪𝘷𝘦 𝘰𝘸𝘯𝘦𝘳. 𝘍𝘰𝘳 𝘢𝘯𝘺 𝘪𝘯𝘲𝘶𝘪𝘳𝘪𝘦𝘴, 𝘤𝘭𝘢𝘪𝘮𝘴, 𝘰𝘳 𝘳𝘦𝘮𝘰𝘷𝘢𝘭 𝘳𝘦𝘲𝘶𝘦𝘴𝘵𝘴, 𝘱𝘭𝘦𝘢𝘴𝘦 𝘧𝘦𝘦𝘭 𝘧𝘳𝘦𝘦 𝘵𝘰 𝘤𝘰𝘯𝘵𝘢𝘤𝘵 𝘮𝘦. ----------------- 👇👇👇𝑰𝒇 𝒚𝒐𝒖'𝒓𝒆 𝒊𝒏𝒕𝒆𝒓𝒆𝒔𝒕𝒆𝒅 𝒊𝒏 𝒔𝒊𝒎𝒊𝒍𝒂𝒓 𝒑𝒐𝒔𝒕𝒔, 𝒑𝒍𝒆𝒂𝒔𝒆: 🔍 Follow Karoline Qasem, PhD, PE, PMP, CFM, #20MinRule 🔔 Click the bell icon on my profile 👍 Like 🔁 Repost --------------- #Hydrogeology #WaterEngineering #Groundwater #Sustainability #ConfinedAquifer #EngineeringChallenges #WaterScience #AquiferManagement #GeologicalEngineering #ArtesianPressure #WaterResources

Polyester Geogrid known as PET Grid is woven by high strength polymer yarns as per desired mesh sizes and strength from 20kN/m to 800kN/m(Biaxial type), 40-25kN/m to 600-400kN/m(Uniaxial type). Polyester geogrid is created through interlacing, usually at right angles, two or more yarns or filaments. Exterior of PET Grid is coated with polymer or nontoxic substance material for UV, acid and alkali resistance and prevents the bio-decomposition.

[RECYCLED MATERIALS IN GEOTECHNICS] Recycled materials, such as crushed concrete or asphalt, are increasingly used in geotechnics as a sustainable alternative to natural stone materials. 🧐 Their use reduces the exploitation of natural resources and helps lower CO₂ emissions. Properly processed materials can ensure satisfactory mechanical properties, such as load-bearing capacity or compressibility, especially in embankments as well as subbase and foundation layers. With appropriate laboratory testing and quality control, recycled materials become a sustainable alternative that not only reduces construction costs but also contributes to the sustainable development of the construction sector. 🙂 #geotechnicalengineering #geotechnics #geology #recycled #stone #sustainability #geotech

Exciting News! New Thermal Integrity Profiling Equipment Acquired We are thrilled to announce that PrairieGeo has acquired state-of-the-art Thermal Integrity Profiling (TIP) equipment! This advanced technology enhances our ability to evaluate the structural integrity of deep foundations, ensuring the highest standards of safety and performance in geotechnical projects. What is Thermal Integrity Profiling? TIP is an innovative method that uses heat generated by curing concrete to assess the quality and uniformity of drilled shafts, bored piles, and other concrete foundations. By measuring temperature variations along the length of the foundation, TIP can: • Detect anomalies such as voids, necking, or inclusions. • Confirm proper concrete coverage around rebar. • Provide real-time data to optimize foundation performance. With this cutting-edge equipment, PrairieGeo continues to lead in delivering reliable, efficient, and accurate geotechnical solutions. We’re committed to leveraging the best tools to serve our clients and elevate project outcomes. Stay tuned for more updates as we implement TIP in our upcoming projects! If you’d like to learn more or discuss how TIP can benefit your project, feel free to reach out. #GeotechnicalEngineering #Innovation #ThermalIntegrityProfiling #PrairieGeo

Soil structure interaction can be case-specific in deep alluvial basins. There are several contrasting evidences. Using system identification, we found soil structure interaction is more realistic for #elevated #water tank. We consider three reservoir conditions for system identification (full, half, and empty). NB: Slender structures can have different stories, so the use of structural dynamics in design/assessment enhances reliability. The paper is open access, feel free to download and read. #WaterTank #SystemIdentification #SoilStructureInteraction #OMA https://lnkd.in/eDjBruGg