One of the most important things to consider with deep foundation design is the sediment type and conditions. Determining the quality and strengths of the sediment will reduce your risk and aid in determining load bearing capacity. This information is critical in deep foundation design as the load capacity of the sediment will determine the size and type of foundation that can be used. Keep reading to learn about Cone Penetration Testing (CPT) and how it can benefit your deep foundation design.
The Need for CPT in Deep Design
CPT is an advanced method of geotechnical investigation that uses a sensored probe with a conical tip (cone) that collects in-situ tip resistance, sleeve friction, and pore water pressure. The probe is statically advanced via a hydraulic system to the desired depth and data can be collected as frequent as every five millimeters. This information can be used to characterize the density, strength, and moisture content of the sediments. Concerning deep foundation design, CPT allows engineers to assess in-situ sediment conditions with various tools such as shear wave seismic and pore pressure dissipation tests. All this information helps to inform and make considerations with deep foundation design.
Benefits of Deep Foundation Design
Compared to other sediment sampling methods such as Standard Penetration Testing (SPT), CPT is much less disruptive and more efficient to collect in-situ data. This is exceptionally beneficial in deep foundation design as it allows engineers to assess the sediment conditions and complement other tools used to assess the site to inform your deep foundation design. CPT is also a relatively quick and easy way to identify schedule risks or potential hazards that need to be considered for the site stakeholders.
By incorporating as much site characterization data as possible, design firms can better understand the sediment conditions and mitigation of subsurface risks. For example, if the sediment conditions are not suitable for a traditional foundation, CPT can help engineers assess the feasibility of using alternative sediment stabilization technologies and foundation tools such as piles or caissons.
Vertek CPT has experience helping government agencies, engineering companies, and drilling companies with cone penetration testing for deep foundation design. CPT is a valuable tool that can be used in deep foundation design. By understanding the sediment conditions, CPT can help engineers make more informed decisions about the site characterization risks. Without a comprehensive site investigation prior to the design of a deep foundation could lead to greater challenges in construction and longevity of your structure.
Get in touch with us today if you would like to learn more about how CPT can be used in deep foundation design or if you need assistance with your project. We would be happy to discuss your needs and provide you with the CPT technology and services you need to ensure the success of your project.