This bulletin provides a framework for classifying different types of tailings based on their geotechnical properties and provides typical geotechnical parameters for the different tailings types. It also presents technologies for dewatering tailings from thickening to filtration.
This webinar will continue from the Introduction to CPT and takes a more in-depth look at CPT interpretation and application to estimating soil parameters.
This webinar will continue from the Introduction to CPT and take a more in-depth look at interpretation and application to estimating soil parameters for coarse grained soils.
This webinar continues from CPT Interpretation and takes a more in-depth look at interpretation and application to estimating soil parameters for fine-grained soils.
The manual presents the requirements and procedures for the collection of geologic data obtained by the Bureau of Reclamation. The intent is to establish common guidelines, procedures, and concepts for the collection, evaluation, and presentation of geologic information.
The purpose of this guide is to provide a concise resource for the application of the CPT to geotechnical engineering practice. This guide is a supplement and update to the book CPT in Geotechnical Practice by Lunne, Robertson and Powell (1997). Recommendations are provided on applications of CPT data for soil profiling, material identification and evaluation of geotechnical parameters and design.
The purpose of this guide is to provide a concise resource for the application of the CPT for geo-environmental projects. This guide is a supplement to the book CPT in Geotechnical Practice by Lunne, Robertson and Powell (1997). Basic recommendations are provided on applications of CPT data for soil profiling, material identification, evaluation of geotechnical parameters and application of CPT technology to geo-environmental projects.
?It has been determined, after a technical feasibility study, that ultrasonic is the best alternative to characterize slurry flows in tailings flumes, by using the Ultrasonic Velocity Profile (UVP) technique, which among its many advantages it has shown not to be invasive, to have a high sample frequency, to have the ability to make measurements in opaque means, to have portability, and also that its implementation in existing structures is not complex, nor that it requires special permissions like other technologies do (based on radiation). In the Investigation Centre JRI (CI-JRI), two measurement UVPs prototypes have been designed, built and set up in transport systems of flumes on a laboratory scale. These prototypes have also been able to perform ultrasonic measurements that have got to a correct estimation of the velocity profile, together with an ad hoc post-processing methodology, outcomes that allow projecting applications at an industrial level and that would generate meaningful benefits in the operation. The future challenges aim to higher scale tests and the development of a given post-processing methodology that would let determine inline, and with a precision over 1%, associated values to the concentration of solids in the fluid, the velocity profile of the fluid in the flume and rheological parameters, all essential to a correct controlling of stages in the transportation of tailing slurries with high concentration.
This report summarizes the basic chemistry associated with mineral dissolution, weathering, biotic processes and mixing, all of which may contribute to changes in seepage chemistry during structural transit. This report also provides references, overviews of planning, sampling, quality assurance, and interpretation of seepage chemistry investigations, and examples from successful seepage investigations performed over the past 20 years by Bureau of Reclamation Dam Safety Program professionals. Summary references are also recommended for the reader who wishes to investigate specific topics more thoroughly.
This webinar will discuss the use of the Seismic Cone Penetration Test (sCPT) as well as interpretation of the data.