Engineering Consultancy Services

Ground condition surprises torch budgets. Here's a 4-step cure that prevents claims: After 35 years of ground condition claims, I've developed a proven playbook. Early Contractor Involvement applied to site investigation from day one. These steps don't cost too much but reduce ground claims significantly. Step 1: Ask shortlisted bidders what results they REALLY need to know from the ground investigation Their site investigation assessment often beats a consultant's desk study. Too often consultants, constrained by budget, instruct bare minimum investigation. $1 spent on verified ground data has a $100 payback on claim avoidance. Step 2: Target your investigation for maximum results Fund extra boreholes, CPTs, test pits as early works if contractors ask for them. At Lucky Bay, we engaged the contractor to carry out an early works geotechnical campaign. Nailed exactly what the soil was down to required excavation depth. Ensured a firm price lock-in. Step 3: Consider a Geotechnical Baseline Report Co-author it with your shortlisted contractor. A joint GBR turns "unknown" into "known" and kills unforeseen conditions claims. Step 4: Embed schedule of rates for true unknowns Stiff clay, rock, rock-ripper hours - price risk and rates upfront, don't litigate afterwards. Consultants owe clients transparent, realistic pricing structures. Contractors welcome it. Clients gain cost certainty and a de-risked project. This is your margin insurance. Consultants - we owe clients this diligence. Shape the investigation, share risk, slash dispute risk. Clients and contractors - this four-move playbook works. From scoping investigations to negotiating fair risk balance. P.S. Want to discuss your ground conditions exposure? Drop me a message and let's see how we can save you money and avoid nasty claims on your next project.

🌄 How We “Read the Mountains” Before Building Roads Behind the Scenes of Geotechnical Site Investigation for Slope Stability Once, I was standing at the edge of a steep cut, watching our team drill the first borehole. Someone asked me: “Why do we spend so much time testing before we start construction?” My answer was simple: Because in such steep location, the ground is the biggest risk. When you are designing a road that cuts through a mountain area, the slope doesn’t forgive mistakes. A single weak layer or uncertainty can cause a disaster … A mismatched soil–rock interface… → and you get a landslide that cost the entire road. That’s why we approach geotechnical investigation for slope stability like a medical diagnosis: 🟩 1. Understand the Geology — The Mountains Always Tell a Story Identify rock types, weathering grade, fault zones Map discontinuities (dip/dip direction, spacing, aperture) Check for old landslide scars Mountains keep records of previous failures. You just need to read them. 🟦 2. Drill Smart, Not Just Deep Typical investigation: Boreholes along the road alignment SPT in residual soils Rock Core Logging (RQD, RMR, GSI) Standpipe or piezometers for groundwater And sometimes you need inclined boreholes to hit the critical joints. 🟧 3. Test What Matters for Stability Direct Shear / Triaxial CU-CD for soil parameters Point load & UCS for rock strength Permeability for seepage Laboratory mapping of shear strength at the soil–rock interface Slope stability depends on one thing: Shear strength versus driving forces. 🟥 4. Assess Hazards Using Real Models 2D/3D Slope Stability (PLAXIS, GeoStudio) Rock kinematics (wedge, planar, toppling) Rainfall infiltration & groundwater rise Dynamic loading for seismic zones The target isn’t FS = 3… The target is zero surprises during construction. 🏗️ Geotechnical Engineering is Not Just Drilling — It’s Risk Control Before any road is built in mountain terrain, a solid geotechnical investigation is the difference between a safe alignment and a future landslide. And this is why I love our profession: Every mountain has a different personality. Every slope has a secret. And it’s our job to find it before it finds us. #Geotechnical #SlopeStability #GeotechEngineering #SoilMechanics #RockMechanics #Geology #SiteInvestigation #SlopeFailure #PLAXIS #GeoStudio #EngineeringDesign #InfrastructureProjects #TransportationEngineering #Earthworks #ConstructionManagement #InfrastructureDevelopment #STEM #Innovation #Sustainability #ProjectManagement #Leadership #Technology #EngineeringCommunity #EngineeringLife #SaudiArabia #MiddleEastProjects #FutureOfEngineering

GEOTECHNICAL RISK - HOW MANY BOREHOLES SHOULD I DO? I've been having quite a few conversations lately about geotechnical investigation scopes with our clients. We have discussed how the geotechnical risk is communicated to them (our client) and how they might communicate this to their client. All too often, communicating the risk in a proposal and trying to explain why you have chosen to do certain things is difficult and sometimes not understood or appreciated. So PRICE, not VALUE becomes the driving factor. To try and better communicate this, we have developed a tool that will help. We have developed an ISO31000 Risk Management framework to provide a geotechnical risk assessment of the site and proposed development in order to establish the requirements for the geotechnical investigation. We follow these steps: 🔵 Look at factors that affect the likelihood of negative outcomes and score them on a 1-3 scale. These include things like geological complexity, groundwater conditions, geohazards and the like. 🔵 Look at factors that could affect the consequence of a negative outcome and score them on a scale of 1-3. These include things like the importance of the structure or development and the number of occupants, the sensitivity of the structure and things like adjacent constraints, structures and asset values. 🔵 Each of the Risk Factors are weighted to provide an overall Likelihood and Consequence score and definition. 🔵 An ISO 31000 5 x 5 risk matrix is used to derive an overall risk. This is a great first outcome for communicating risk in a consistent and familiar way. But we take it a step further. 🔵 Based on the Consequence Score, a BS EN 1990 Consequence Class can be derived (CC0 to CC4) 🔵 Based on the Likelihood Score, a BS EN 1997 Geotechnical Complexity Class can be derived (GCC1, GCC2 or GCC3) 🔵 Using these two classes a Geotechnical Category can be derived (GC1, GC2, GC3) 🔵 And finally a recommended geotechnical investigation can be recommended based on the guidance provided in BS EN 1997. This is used as a starting point for us to derive our site and project specific scope. Although we (in Australia) do not have specifications or specific prescriptive requirements to adhere to when it comes to scoping geotechnical investigations, adopting the processes in other standards and communicating them is important. Using a tool like this is beneficial to our clients to offer a simple, robust, and consistent approach for assessing, demonstrating and communicating risk so that they can make the most informed choices. PTG Consulting #geotechnical #engineering #geology

🌧️ Rainfall data analysis as a fundamental input for advanced hydrological modelling . Rainfall data is the governing variable in hydrological studies, as it directly affects the estimation of surface runoff, the hydrological response of basins, and the accuracy of mathematical model outputs used in flood risk assessment and water infrastructure design. 📊 The hydrological importance of rainfall analysis Accurate analysis of rainfall data aims to: Describe the statistical characteristics of rainfall (frequency, intensity, variability) Represent the temporal and spatial distribution of precipitation Identify design storms Reduce uncertainty in hydrological models. 🧠 Advanced statistical analysis of rainfall The choice of statistical method depends on the nature of the data and the length of the time series. The most prominent methods are: 🔹 Frequency Analysis Application of probability distributions such as: Gumbel Extreme Value Type I Log-Pearson Type III Generalised Extreme Value (GEV) Goodness of Fit test using: Kolmogorov–Smirnov Chi-Square Anderson–Darling. 🔹 Intensity-Duration-Frequency (IDF) Curves Derivation of mathematical relationships between intensity (I), duration (D), and frequency (T) Form the basis for the design of stormwater drainage networks and urban infrastructure. ⏱️ Temporal Analysis Time series analysis to detect: Long-term trends (Trend Analysis) Climate changes and their impact on precipitation patterns Use of tests: Mann–Kendall Sen’s Slope Estimator. 🌍 Spatial Rainfall Analysis Due to the heterogeneity of precipitation, rainfall is spatially represented using: Thiessen Polygons Inverse Distance Weighting (IDW) Kriging (Geostatistical Methods) Integration with geographic information systems (GIS) is an essential step in improving rainfall representation at the catchment level. 💧 Linking rainfall and hydrological models Rainfall analysis results are used directly in: Rational Method (for small basins with rapid response) SCS Curve Number Method for estimating loss and surface runoff Rainfall–Runoff Models such as: HEC-HMS WMS SWMM ⚠️ Technical challenges Incomplete or irregular rainfall records High spatial variability of storms The impact of climate change on the stability of statistical assumptions (Stationarity). Any hydrological model, regardless of its computational accuracy, remains dependent on the quality of the rainfall data analysis input into it. Rainfall analysis is not a preliminary step, but rather the essence of the entire hydrological process.

How do we evaluate a aging bridge without drawings? When I was a junior engineer, I was once assigned to a project to demolish an overpass that was over 40 years old(Cheonggyecheon viaduct in Korea). I remember we didn’t have any of the necessary information such as blueprints or material specifications so we had to carry measuring tapes, climb up on a cherry picker, and measure the dimensions of the bridge section by section to complete the project. This is a video of a recent aging bridge collapse in China. The safety evaluation of aging bridges must be conducted periodically, and a detailed diagnosis is especially essential to identify potential defects. For bridges without design documents, this detailed diagnosis must be performed through rigorous field measurements and a Reverse Engineering approach, following the procedures below. Detailed Diagnosis & Technical Evaluation Procedure - Geometry Restoration (As-built Generation): The absolute priority is direct and precise field measurement using tape measures and surveying instruments to understand the structural framework. Then, 3D laser scanners and drone photogrammetry are utilized as supplementary tools to digitize the overall geometry and generate drawings. - Material Property Investigation (NDT & Destructive Testing): Non-Destructive Testing (NDT) like GPR must be accompanied by destructive testing. This includes concrete coring to verify actual compressive strength and direct chipping of critical sections to quantitatively check rebar spacing and corrosion levels. - Static & Dynamic Load Testing: Restored dimensions alone cannot guarantee the load-bearing capacity. Real-vehicle load testing using dump trucks must be conducted to measure the bridge's actual behavior (deflection, strain) for verification. - Structural Analysis & Rating: Performing Finite Element Method (FEM) analysis based on the collected field data to evaluate the load-carrying capacity. Applicable International Codes In a global project delivery environment, the following international standards are applied to ensure the reliability of the evaluation. - AASHTO MBE (Manual for Bridge Evaluation): Standards for load rating and material testing of bridges without drawings. - ISO 13822 (Assessment of existing structures): Performance-based procedures and reliability verification for assessing existing structures. - FHWA Guidelines: Guidelines for detailed inspection and field sampling, including coring. The most critical question is: "How much additional safety factor is applied when evaluating based on data estimated without drawings?" In short, the code mandates a system that translates the risk of information scarcity into a structural safety margin.

🔍 #Geotechnical_Drilling… the true foundation of every successful project Geotechnical drilling is one of the most critical early stages of any construction project. It aims to accurately understand soil and rock conditions before design and execution, reducing risks and ensuring long-term structural safety. 🛠️ *Procedures followed in geotechnical drilling works:* Accurate identification of borehole locations in coordination with the survey team. Verification that the site is free of underground services. Site preparation and securing the area in accordance with safety requirements. Executing drilling using specialized equipment based on soil or rock conditions. Field logging of soil and rock layers in the geotechnical log. Collecting samples (soil samples & rock cores) and preserving them according to standards. Transporting samples to the laboratory for required testing. 🧱 *Types of cores used in rock drilling:* *NX Core:* Commonly used, providing a good balance between sample quality and drilling speed. *HQ Core:* Larger diameter, provides higher-quality samples and is used for detailed investigations. *PQ Core:* Very large diameter, used for special projects and advanced studies. Core quality is evaluated using indicators such as: ✔️ RQD (Rock Quality Designation). ✔️ Core recovery percentage. ✔️ Condition of joints and fractures. 📊 All this data is later used in foundation design, determining foundation type, depth, and bearing capacity in a safe and economical manner. Geotechnical engineering is not just drilling… It is a precise interpretation of what lies beneath the ground before building above it.

After talking with Robbie Bent last week, I’m convinced every digital worker should hire a personal AI consultant. I know I will. The irony? Robbie’s company, Othership, is an antidote to tech—a social bathhouse where phones are banned to encourage presence and human connection. Yet, he’s deeply focused on technology and how it can improve the way he runs his business. After hours of hearing about AI’s potential in tech podcasts, Robbie wanted to move beyond ChatGPT and integrate AI into his workflows. He realised trying out all the latest tools himself was going to be a full-time job, and that’s when he decided to hire a personal AI consultant—someone who could analyze his processes and identify how AI could drive real efficiency gains. The goal was to eliminate busywork and free up his time for higher level decision-making. Think Accenture, but for the entrepreneurial age. He had four criteria for the person he wanted to work with: 🏗️ Strong engineering background  🥷 Startup experience  🎖️ 10-12 existing clients who had already implemented successful AI solutions  💰 High consulting rates ($500-$1,000/h) to signal expertise and focus on ROI They started by spending an hour reviewing Robbie’s workflow and focused on the highest leverage areas, including recruiting & hiring automation, sales & outreach and negotiation coaching. One interesting industry-specific use case they came up with was to train a model on all the construction-related meetings and documents to have it extract key takeaways, flag issues and track progress, eventually helping them minimize risk in their expansion, a critical challenge for brick & mortar businesses. The consultant then went in implementation mode, testing AI integrations in real time. This typically involved stitching together different AI models, workflow automations, and tools. Robbie didn’t stop at his own workflow. He decided to give all his senior leaders access to this personal AI consultant, so they too could optimize their own processes. The goal is to make AI a core part of how everyone in the company operates. It’s not a “once and done” type of project. AI capabilities are growing so fast, that what isn’t possible today may become possible in six months. Robbie plans to repeat this process annually, ensuring his company is always operating at the cutting-edge. His key takeaways from his first-hand experience so far: 1️⃣ AI is not replacing jobs per se but multiplying the effectiveness of great employees 2️⃣ While brick-and-mortar locations won’t see major AI-driven changes, corporate HQ roles could be optimized, potentially reducing the need for middle management 3️⃣ AI tools aren’t fully automated yet 4️⃣ Employees need AI training: how to integrate AI into daily workflows, what data to input for optimal results, when to trust vs. refine AI-generated content, etc. Drop a comment if you’d like me to share details on the AI consultant he’s been working with!

1️⃣ What is a Geotechnical Investigation ? Is it just drilling boreholes and logging samples ? Not even close … After working on dozens of field projects over the past 6 years, I’ve come to appreciate how geotechnical investigation is more than just a site activity, it's a structured, critical process that impacts the safety and success of every project. Here’s how I define it in the real world: 🔍 1- Desk Study Before the rig even touches the ground, we analyze geology, satellite maps, nearby case studies, and history data. You can't understand the site if you don't study its history. ⛏ 2- Field Investigation This is the action phase: • Drilling boreholes • Performing in-situ tests (SPT, CPT, PMT...) • Sampling soil and rock • Installing instruments This is where theory meets reality, and it often surprises you. 🔬3- Laboratory Testing Soil strength, classification, permeability, consolidation... Lab results confirm (or sometimes challenge) field expectations. 📊 4- Data Interpretation & Reporting** Raw numbers become actionable insights. We provide recommendations that help clients, structural engineers, and designers make smarter decisions, about foundations, stability, water control, and more. 💡 It’s not just about collecting data — it’s about understanding “what the ground is telling us”, and helping others build on it with confidence. #FieldNotes #GeotechnicalEngineering #SiteInvestigation #SoilTesting #EngineeringInsights #Ahmed_Khatab_FieldSeries

Orycta’s 5 cents on helping clients choose the right soil investigation partners. Anyone working in the UAE and GCC knows that our ground conditions are anything but straightforward. We often deal with medium dense to dense sands transitioning into sandstone or calcarenite with varying degree of cementation. It’s that grey zone between soil and very weak rock, that makes interpretation and design tricky. When it comes to standard investigations (boreholes, SPTs, basic coring) most contractors can produce decent results. But once you move into geophysical, pressuremeter or advanced testing or even CPTs, the difference between an average and a great soil investigation company becomes clear. At that level, data quality, equipment, calibration, operator skill, and interpretation experience directly influence the parameters that go into foundation design. Small errors in core recovery, understanding cementation or stiffness transitions can lead to major misjudgments in foundation behavior, settlement, or retaining wall performance. You will always pay for your soil investigation. Either upfront, by choosing a competent and experienced team, or later, through redesigns, claims, delays, and costly surprises on site. And as goes with almost everything nowadays, the cheapest option is rarely the best investment. #SoilInvestigation #geotechnicalTesting #Foundation #UAEConstruction #ConstructionCost #ValueEngineering #Orycta #Geotechnical #Consulting

𝗚𝗲𝗼𝘁𝗲𝗰𝗵𝗻𝗶𝗰𝗮𝗹 𝗜𝗻𝘃𝗲𝘀𝘁𝗶𝗴𝗮𝘁𝗶𝗼𝗻 𝗗𝗲𝘀𝗶𝗴𝗻/𝗚𝗲𝗼𝘁𝗲𝗰𝗵𝗻𝗶𝗰𝗮𝗹 𝗜𝗻𝘁𝗲𝗿𝗽𝗿𝗲𝘁𝗶𝘃𝗲 𝗥𝗲𝗽𝗼𝗿𝘁 𝗪𝗿𝗶𝘁𝗶𝗻𝗴 Conducting site geotechnical investigation is just the tip of the iceberg. The unseen but equally important part is the 𝗚𝗲𝗼𝘁𝗲𝗰𝗵𝗻𝗶𝗰𝗮𝗹 𝗜𝗻𝘃𝗲𝘀𝘁𝗶𝗴𝗮𝘁𝗶𝗼𝗻 𝗗𝗲𝘀𝗶𝗴𝗻 or 𝗜𝗻𝘁𝗲𝗿𝗽𝗿𝗲𝘁𝗶𝘃𝗲 𝗥𝗲𝗽𝗼𝗿𝘁, which requires both technical accuracy and professional presentation. The report must clearly communicate 𝐬𝐢𝐭𝐞 𝐜𝐨𝐧𝐝𝐢𝐭𝐢𝐨𝐧𝐬, 𝐝𝐞𝐬𝐢𝐠𝐧 𝐚𝐩𝐩𝐫𝐨𝐚𝐜𝐡, 𝐚𝐧𝐝 𝐫𝐞𝐜𝐨𝐦𝐦𝐞𝐧𝐝𝐚𝐭𝐢𝐨𝐧𝐬 to the client and stakeholders. Depending on project requirements, it typically includes: 1. 𝗘𝘅𝗲𝗰𝘂𝘁𝗶𝘃𝗲 𝗦𝘂𝗺𝗺𝗮𝗿𝘆 – provides the most important findings in a short and simple manner. 2. 𝗜𝗻𝘁𝗿𝗼𝗱𝘂𝗰𝘁𝗶𝗼𝗻 – gives the project background, purpose of the investigation, and scope of services. 3. 𝗣𝗿𝗼𝗷𝗲𝗰𝘁 𝗗𝗲𝘀𝗰𝗿𝗶𝗽𝘁𝗶𝗼𝗻 – shows the site location, borehole positions, and the geology and seismology of the area. Geological profiles and cross-sections are included in the appendix. 4. 𝗚𝗿𝗼𝘂𝗻𝗱 (𝗙𝗶𝗲𝗹𝗱) 𝗜𝗻𝘃𝗲𝘀𝘁𝗶𝗴𝗮𝘁𝗶𝗼𝗻 – outlines the program, methodology, in-situ testing, and instrumentation. Design parameters, correlations, and summary of results are presented here, while detailed logs and computations appear in the appendix. 5. 𝗟𝗮𝗯𝗼𝗿𝗮𝘁𝗼𝗿𝘆 𝗧𝗲𝘀𝘁𝗶𝗻𝗴 – summarizes the tests performed and key findings, with full details in the appendix. 6. 𝗚𝗲𝗼𝘁𝗲𝗰𝗵𝗻𝗶𝗰𝗮𝗹 𝗥𝗶𝘀𝗸𝘀 𝗮𝗻𝗱 𝗠𝗶𝘁𝗶𝗴𝗮𝘁𝗶𝗼𝗻 𝗠𝗲𝗮𝘀𝘂𝗿𝗲𝘀 – describes potential hazards such as slope failures, liquefaction, and problematic soils, along with mitigation strategies. 7. 𝗥𝗲𝗰𝗼𝗺𝗺𝗲𝗻𝗱𝗮𝘁𝗶𝗼𝗻𝘀 – provides guidance on material use, foundation options, and solutions to geotechnical challenges. 8. 𝗥𝗲𝗳𝗲𝗿𝗲𝗻𝗰𝗲𝘀 – cites the sources forming the basis of the evaluation and analyses. 9. 𝗔𝗽𝗽𝗲𝗻𝗱𝗶𝗰𝗲𝘀 – include borehole logs, field test sheets, instrumentation results, geological profiles and cross-sections, laboratory results, detailed analyses and calculation sheets. A well prepared interpretive report ensures timely, informed decisions, helping clients 𝗿𝗲𝗱𝘂𝗰𝗲 𝗰𝗼𝘀𝘁𝘀 𝗮𝗻𝗱 𝗮𝘃𝗼𝗶𝗱 𝗽𝗿𝗼𝗷𝗲𝗰𝘁 𝗱𝗲𝗹𝗮𝘆𝘀 𝗰𝗮𝘂𝘀𝗲𝗱 𝗯𝘆 𝘂𝗻𝗳𝗼𝗿𝗲𝘀𝗲𝗲𝗻 𝗴𝗲𝗼𝘁𝗲𝗰𝗵𝗻𝗶𝗰𝗮𝗹 𝗿𝗶𝘀𝗸𝘀. 👉 For 𝗚𝗲𝗼𝘁𝗲𝗰𝗵𝗻𝗶𝗰𝗮𝗹 𝗜𝗻𝘃𝗲𝘀𝘁𝗶𝗴𝗮𝘁𝗶𝗼𝗻 𝘀𝗲𝗿𝘃𝗶𝗰𝗲𝘀 including Field Investigation, Design, and Technical Writing, connect with me to make your project a success. Your success is our success. #Geotechnical_Investigation #Technical_Writing #Geotechnical_Design #Construction #Freelancing