How do you approach engineering geology site investigation and data collection?

2 Review existing data

A good way to start a site investigation is to review the existing data and information about the site and its surroundings, such as geological maps, reports, boreholes, aerial photos, satellite images, and historical records. This will help you gain a general understanding of the geological setting, features, and processes that may influence the site, as well as identify any data gaps or uncertainties that need further investigation.

3 Conduct fieldwork

Fieldwork is the core of site investigation, as it involves collecting primary data and observations from the site itself. Depending on the objectives and conditions of the project, fieldwork may include various techniques, such as surface mapping, sampling, testing, geophysical surveys, drilling, logging, and monitoring. The fieldwork should be conducted by qualified and experienced engineering geologists, who can apply their skills and judgment to select the best methods, locations, and procedures for data collection.

4 Analyze and interpret data

Once the fieldwork is completed, the next step is to analyze and interpret the data collected from the site. This may involve laboratory testing, numerical modeling, statistical analysis, and geological synthesis. The aim is to evaluate the engineering properties and behavior of the geological materials and structures, such as strength, stiffness, permeability, stability, and deformation. The data analysis and interpretation should also consider the uncertainties and limitations of the data, such as errors, variability, and representativeness.

5 Report and communicate results

The final step of site investigation is to report and communicate the results and findings to the relevant stakeholders, such as engineers, designers, contractors, regulators, and clients. The report should present the data and information in a clear, concise, and logical manner, using appropriate formats, diagrams, maps, tables, charts, and graphs. The report should also highlight the main conclusions and recommendations for the engineering project, such as the geotechnical design parameters, criteria, assumptions, and constraints.

Engineering geology site investigation and data collection is a complex and dynamic process that requires careful planning, execution, analysis, and reporting. By following these steps and tips, you can ensure that you collect reliable and relevant data that can support your engineering project and reduce geotechnical risks.

6 Here’s what else to consider

This is a space to share examples, stories, or insights that don’t fit into any of the previous sections. What else would you like to add?