Drilling applied to environmental studies and investigation - Core Case

Drilling applied to environmental studies and investigation

Investigative probes consist of drilling holes in the ground or rock, to capture information about the studied region. Thus, its application is highly advantageous for environmental studies.

Drilling can be used as study strategies during all phases of an environmental investigation, varying the type of Drilling to be carried out according to the project´s final purpose.

Would you like to know more about this topic? Read to the end!

What are the phases that make up environmental research?

Drilling can contribute in different ways to environmental studies, depending on the research phase in which they are used. Generally, its use occurs more frequently in the phase of confirmatory environmental investigation, due to the phase´s purpose.  Check it out below:

Preliminary Evaluation

At the preliminary phase, environmental research is based on the definition of possible human interference that could trigger environmental damages.

The studies in this phase are developed with on-site visits, document collection and history of activities developed in the area and, if there is suspicion of environmental damage, a second evaluation phase is developed.

Confirmatory Environmental Investigation

In this phase we seek to confirm the suspicions that occurred in the previous phase, making use of analysis methods such as soil sampling through surveys at strategic points in the study area.

The Drilling methods more used in environmental studies are:

  • For soil drilling, the percussion method (SPT) is recommended, since it is capable of providing information about the compactness and consistency of soil layers;
  • For rocks, the most used method is the rotary Drilling by obtaining coring, reaching great depths and enabling analysis as to the degree of alteration, schistosity and quality index, for example.

Detailed investigation

In cases where environmental damage is confirmed in the study area, a detailed investigation is carried out to delimit the damage potential occurred and its zone of influence, as well as possible intervention measures aimed at the area rehabilitation.

How to analyze which type of Drilling should be applied to the environmental study?

Investigative studies through soundings enable knowing the area characteristics in relation to the water table level, the local geological composition in detail, as well as other specific information relevant according to the type of study.

Therefore, the choice of Drilling type to be used in an environmental study should be based mainly on the evaluation interest purposes.

Drilling focusing on environmental studies

The drilling of soils with a view to environmental collection follows ABNT NBR 15492 standard and can be carried out manually, with the percussion method, or using an auger, and can also occur mechanically, using a helical or rotary Auger.

The collection and storage of environmental soil samples is carried out according to ABNT 16434 standard, with the help of liner that ensures the preservation of possible liquid and volatile contaminants for future analysis.

In the case of water samples, the procedures follow ABNT 15847 and ABNT 16435 standards, aiming at greater control and lower contamination of both samples and soil and aquifer characteristics. 

How can Core Case help you?

Our company aims to promote planet preservation and, to guarantee this commitment, we are always investing in innovations and technologies that favor a sustainable and responsible exploration!

Learn more about our products! We develop several models of boxes for storage of survey coring that are environmentally sustainable!

We have specialized service for mining companies, drilling, geotechnical, engineering, environmental and related companies.

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