Marshall GeoScience’s Post

🔥 Borehole drilling allows geotechnical engineers to examine soil and rock layers deep below the surface. This data guides foundation choices and identifies potential challenges, providing essential information for safe and efficient project planning. #boreholedrilling #geotechnicalengineering #soilandrockanalysis #foundationdesign #subsurfaceinvestigation #engineeringdata #constructionplanning #projectefficiency #soilstability #EngineeringInsights 🔥 Website: https://marshallgeo.com/

By utilizing high-frequency vibrations, sonic drilling can penetrate various types of subsurface materials with minimal disturbance, preserving the integrity of the samples retrieved. ≚🔺 This method offers several advantages over traditional drilling techniques, including faster drilling rates, reduced environmental impact, and the ability to access challenging terrains. ≚🔺 The high-quality samples obtained through sonic drilling provide valuable data for geotechnical engineers to assess soil and rock properties, evaluate site conditions, and make informed decisions for construction projects, environmental assessments, and resource exploration. ≊ ≊ ≊ 🔺👷♂️ #drilling #geotechnical #civilengineering

From the basics of site characterization to questions about automated injection and how it works, these are the most sought out resources of 2024. 1. The Basics of High Resolution Site Characterization - https://lnkd.in/gX9NxEQD 2. What is Automated Injection and How Does It Work? - https://lnkd.in/grz_VGZ9 3. What is Split Spoon Sampling? - https://lnkd.in/gRJ53vW2 4. Is Rotary Drilling Right for Your Project? - https://lnkd.in/gTKG_3zC 5. Drilling 102: Introduction to Environmental & Geotechnical Drilling Methods - https://lnkd.in/g7MkuYHK #SiteCharacterization #AutomatedInjection #RotaryDrilling #EnvironmentalDrilling #GeotechnicalDrilling

Damage Detection of a structure: deflection: Is it a settlement or swelling? A significant deflection was reported in a structure. We all were curious about the type of deflection and the reason(s). In this project I led a group of profession engineer to find it and the results surprised me. In damage detection, depending on the project, generally I follow these steps: -First Step: Site Visit and collecting data -Second Step: Monitoring the structure for at least 6 month -Third Step: Geotechnical Investigation (During the monitoring) -Forth Step: Trench and Foundation Investigation (During the monitoring and drilling) -Fifth Step: Analyzing and controlling geotechnical bearing capacity of foundation -Sixth Step: Finding the cause -And finally: Feasibility study and proposing the best solution method

Rock bolting is a crucial technique used in geotechnical engineering and construction to enhance the stability and structural integrity of rock and soil formations. With the use of anchor bolts, grouting, and drilling, rock bolting provides a reliable and long-lasting solution to stabilize various types of rock masses.

Drilling rock bolts in a road tunnel project in Turkey. Rock bolts support the ground by transferring loads from the unstable or fractured rock mass to a more stable zone. They are typically installed into the rock mass using drilling equipment, and then grouted in place to provide additional anchorage. Once installed, the rock bolts effectively "stitch" the rock mass together, creating a reinforced structure that resists deformation and collapse. We have covered all tunnel construction techniques in our Online Tunnel Engineering course. Click the link below to find out more and register for the course 👇 https://lnkd.in/ePXRpUk5 Video credit: IG yusuferkkk #rockbolt #drilling #tunnelcourse #tunnellingcourse #tunnelingcourse #turkey #tunnrlengineeringcourse #tunneleducation #tunnellingpage #tunelfuturistico #tunelizacion #tunelfuturistico #tunnelengineering #artoftunnelling #tunnel #tunnelengineeringisthefuture #tunnel #tunnelling #tunneling #tunel #civilengineering #miningengineering #knowledge #learntunnelling #geotechnicalengineering #geologist #undergroundconstruction #undergroundspace

When it comes to understanding soil behavior under pressure, Pressure Meter Testing (PMT) is one of the most effective processes. By expanding a cylindrical cavity in the ground, it measures the soil's strength and stiffness, helping engineers gain essential insights into how a site will perform under load. Benefits of PMT: ✔️ Flexible and Efficient: Can be performed with existing drilling equipment, making it a versatile option for various projects. ✔️ Precise Data: Offers accurate readings for designing foundations, from shallow to deep, with a focus on both lateral and vertical capacities. ✔️ Reliable Long-Term Results: Models time-dependent settlement to support structure stability for years to come. GTA’s Drilling and Subsurface Exploration services utilize PMT to provide the detailed information needed to design safe, stable foundations. For more of our services and projects, visit: https://lnkd.in/euxvXBHm #GeoTechnologyAssociates #GTA #EnvironmentalConsulting #GeotechnicalEngineering #GeotechnicalServices #ConstructionServices #EnvironmentalServices #DrillingServices #GeoTechnical #Engineers #Construction #PressureMeterTesting

Tunnel Diaries :-I see core discing in the core correct me if I am wrong … means there is brittle rock and high insitu stress ….This failure mode has been recognized as an important index for assessing underground projects under high in situ stresses. In vertical boreholes, core discing is a result of high horizontal stresses. As maximum horizontal stress increases, the average disc thickness consistently declines. In vertical boreholes, discing can determine the direction and approximate ratio of the horizontal principal stresses. Any asymmetry in the disc can give a measure of the inclination of the principal stress away from the vertical.Reposting it for a greater benefit…..Knowledge not shared is knowledge lost ….

𝑮𝒆𝒐𝒕𝒆𝒄𝒉𝒏𝒊𝒄𝒂𝒍 𝑰𝒏𝒔𝒊𝒈𝒉𝒕 𝒇𝒓𝒐𝒎 𝒕𝒉𝒆 𝑭𝒊𝒆𝒍𝒅! Check out this impressive rock core retrieved from the latest geotechnical drilling project! 🪨👷♂️ Here's why RQD (Rock Quality Designation) and Core Recovery are crucial in geotechnical engineering: 𝑹𝒐𝒄𝒌 𝑸𝒖𝒂𝒍𝒊𝒕𝒚 𝑫𝒆𝒔𝒊𝒈𝒏𝒂𝒕𝒊𝒐𝒏 (𝑹𝑸𝑫): 📏 Measures the quality and degree of jointing or fracturing in a rock mass. 🧱 Helps in assessing the suitability of rock for construction purposes. 🌟 High RQD values indicate good quality rock, essential for stable foundations and underground excavations. ——————————————————— 📌 𝑪𝒐𝒓𝒆 𝑹𝒆𝒄𝒐𝒗𝒆𝒓𝒚: 📊 Represents the percentage of the drilled core that is successfully retrieved. 💡 Indicates the integrity and condition of the rock mass. 🚧 High core recovery rates suggest minimal disturbance and reliable data for engineering analysis. ——————————————————— Understanding these parameters is key to ensuring the safety and stability of construction projects. Stay tuned for more updates from the field! 🛠️ ===================== #geotechnicalengineering #construction #rockcore #RQD #corerecovery #geologist #earthscience #rocks #engineeringgeology

Tunnel drilling. We drilled the tunnel 1.8m below the road carriageway as directed by KeNHA and the tunnel is 41m long. Geological investigations and geotechnical interpretation play a crucial role in drilling of the tunnel. The prime purpose of any tunnel site investigation should be to obtain the maximum amount of information on rock characteristics, structural systems and groundwater conditions. This information is important to the tunnel designer in that it should enable him to anticipate the behaviour of the rock .  The information is also important to the contractor in that it should provide him with a basis for establishing the optimum tunnelling method and the type of services which he will require in order to meet the construction schedules.