Geophysical methods can also provide subsurface information in remote and inaccessible areas. When combined with traditional methods, site characterization of a project can be greatly improved. Our intrusive methods are complemented by non-intrusive geophysical methods. Our highly qualified geophysicists routinely work with a broad spectrum of clients to provide necessary geophysical information for the exploration, planning, design, locating, and evaluation of a wide variety of project sites.
The Pre-Geo step combines extensive subsurface data with public domain information. Our local, experienced geotechnical engineer uses their understanding of the area, in combination with predictive analysis and historical data, to provide you with an opinion of: expected subsurface site-conditions
design and construction considerations a plan to confirm expectations.
This unique subsurface characterization process streamlines site selection, aids in preliminary design, and provides a strategic field exploration plan. You receive a conceptual geotechnical model of your project’s subsurface conditions, ultimately saving you time and money, before geotechnical field exploration takes place.
Our Report of Expected Geotechnical Conditions (REGC) takes advantage of GIS to easily store, retrieve, and interpret the massive amount of data we have accumulated. We take historic data and overlay it onto published geologic and soil survey information. The final step of our REGC process is to have one of our geotechnical engineers with local project site expertise review the data and geologic setting to develop an opinion of the conditions expected to be encountered at a particular site. This unique approach to predicting subsurface conditions provides: low cost preliminary evaluations, confidence predictions, constructability evaluations and smart work plan development which leads to faster decision.
We utilize Ground Penetrating Radar (GPR), seismic refraction, electrical resistivity imaging, ground conductivity meters, down hole testing, and ultrasonic testing, among others. Some applications include: contaminated sites, vital infrastructure (pipelines, transportation, dams), geological characterization (sinkholes, landslides, bedrock topography), buried objects (utilities, storage tanks, debris), vibration monitoring, and deep foundation surveys.
We are focused on safe exploration practices.
Our laboratory professionals combine materials expertise, sophisticated testing equipment, and a rigorous quality management system to deliver accurate, precise, timely results – along with the confidence that comes with them. Our national laboratory resources allow us to process large volumes of test specimens quickly, reducing the risk of delays to your critical project timelines. With a local presence, we have in depth familiarity with the specifications of numerous state and federal agencies. Offering includes: advanced shear strength, swell/consolidation, petrographic, steel, wood, geo-synthetics, and rock mechanics test data.
We deploy various geotechnical instrumentation types includes standpipe piezometers to optical time domain reflectory. Our geotechnical expertise allows us to select a combination of equipment and sensors for determining and monitoring the critical soil or rick parameters, as well as terrain and structure movement. With installation of automated data acquisition systems or remote telemetry stations, we can monitor and analyze remotely and in real-time with web-hosted data.
Subsea Protection Cover
Pipeline Protection Covers should be used when there is a requirement for no-contact protection of subsea pipelines. The GRP Covers are installed in areas were there are determined a risk for dropped object or trawl activities. By using GRP Covers over the pipeline in expansion loop areas, the pipeline can move freely within the protection structures. The GRP Pipeline Protection Covers can be designed for straight spools, Z-spools, L-Spools and flexible spools. The parabolic trough technology is currently the best proven and most used technology, even though the live steam parameters are lower than in solar power tower plants.
Subsea Structure Foundation
Support foundations are designed to distribute the weight of a heavy subsea structure in areas where seabed conditions are challenging. The Support foundation can provide the functionalities such as low submerged weight – high payload, skirts for stability, ability to bolt to structure prior to deployment, interface to be designed for any structure and low friction layer.
GRP Foundations are used for buckling mitigation for pipelines to provide a low friction area in which the pipeline will be allowed to expand. The expansion in the pipeline due to temperature variations will then occur in area of the foundations and the risk of the pipeline buckling is removed.
CSUB has supplied several catenary supporting structures in GRP. A catenary support in GRP can provide the following benefits: reduce HUB load, no sharp edges to cause fatigue on out sheath of pipe, can be designed with skirts for fixed foundation or as sledge for flexible foundation
Crossing Structures can be designed for flexible flowlines/umbilicals or rigid pipelines. The crossing structures have the following benefits: low impact to soil, simple installation and low friction.
Wellhead Protection Cover
The structure has features such as: self penetrating skirts for stabilization – skirt height approx 1.5m depending on soil conditions, large openings on every side for good ROV access, top hatches providing access for well operations and removable bridge design allowing for spool installation post protection structure installation.
This new GRP Single Well Protection Structure has the following advantages compared to a traditional steel design: cheaper to manufacture, less deck space required, crane maneuver-friendly and easy installation/removal/retrieval.