What is the purpose of soil boring and borehole logging?
What is the purpose of soil boring?
Soil boring is a practice of geotechnical investigations whose purpose is to determine the soils load-bearing capabilities, water table and chemical contamination.
Boring is important because (1) it helps to determine the capacity of the soil to provide support to the structures on the surface, (2) it reveals the permeability of the soil to establish if it will percolate satisfactorily for an onsite septic system, (3) it is crucial observing leakages from underground storage tanks or contaminants (McCarthy & McCarthy, 1977).
What is Borehole logging?
A borehole log is a record, made by the driller or geologist, of the rocks found and penetrated in the borehole. As the drill cuts through rock at an identified depth, the type of rock in the cuttings that come up to the top of the well is removed and described. When there is a change in the type of rock along the depth, the material reaching the top changes, and the change is also recorded. This is continuous until the well depth has been touched. The log, therefore, provides precise details of the various formations and any events that are faced in the drilling process.
What is a borehole log used for?
A borehole log is used to provides key pieces of information such as the type of soil-cohesive (clays) or non-cohesive (sands and gravels), water table, and consistency of the soil. The information gathered is useful in determining the desirability of the identified formations depending on the type of well. The data is also essential in informing the drillers if water from the boreholes should receive additional treatment before it is used commercially.
When is a borehole log used?
A borehole log is used when crucial data about soil cohesiveness, water table and soil consistency is needed. It is important to note that bore logs are not only used in water wells but also oil wells.
Who uses borehole logs and why?
Borehole logs are used by geologists, geoscientists, geotechnical engineer or other drilling experts. These experts use the bore logs while drilling to determine a well's suitability and to record any events, such as any problems that occur, along with what kind of formations are being drilled through. Scientists also use bore logs to conduct geothermal, geotechnical, and ecological studies (Raymond, 2018).
What is borehole log software?
Borehole log software is software that helps users to create soil borehole logs. It is specially adjusted for the Geotechnical Engineers.
What are the advantages of using borehole log software?
- Easy-to-use, particularly by the experts
- It has a flexible log layout and intuitive data editor.
- Allows for easy smoothing and filtering operations
- Allows for easy plotting of calibration curves, correlation functions, and ratios.
Free Borehole Log Software
ESdat, environmental data management software, produces free borehole log software called ESlog for the reporting of boring and well log data. ESlog is simple, fast and intuitive web-based software. Environmental data can be typed directly into ESlog or is exported from ESdat. https://esdat.net/ESlog_borelog_presentation_software.aspx
A complete electronic field data collection to report solution is available comprising PLog for electronic borehole data collection in the field, which synch's the data back to ESdat for the population of ESlog. This means Project Managers can be reviewing logs while staff are still onsite.
McCarthy, D. F., & McCarthy, D. F. (1977). Essentials of soil mechanics and foundations (p. 505). Virginia: Reston Publishing Company.
Raymond, J. (2018). Colloquium 2016: Assessment of subsurface thermal conductivity for geothermal applications. Canadian Geotechnical Journal, 55(9), 1209-1229.