Engineering-geological survey

We conduct all exploration methods, either with our own equipment or in collaboration with trusted suppliers. These include core drilling, vibratory narrow-profile drilling, penetration tests, accredited laboratory tests, geophysical surveys, field tests, and other specialized methods.

Inquiry and contacts

up to 500: millimeters of borehole diameter
up to 500: meters of borehole depth
1 000+: completed boreholes
30+: years of experience

Professional drilling rigs

We have our own drilling equipment needed for geological boreholes, and we can handle challenging terrain or confined spaces.

Authorization and certification

The work is supervised, performed, and evaluated by a qualified expert in the fields of engineering geology, hydrogeology, and others. We are authorized to carry out mining activities.

Poradíme si s náročným terénem

Disponujeme vlastními vrtacími soupravami a další profesionální technikou, se kterou dokážeme provést vrt i ve špatně přístupném místě nebo obtížně vrtaném podloží.

Field equipment and probes

We are equipped with field detectors and devices that automatically collect and store measured values, enabling us to quickly obtain and process highly accurate data, for example, for foundation soils.

Cleanliness and precision

During our work, we strive to minimize site contamination, prioritize environmental protection, and ensure that the entire area is restored to its original condition upon project completion.

Poradíme si s náročným terénem

Disponujeme vlastními vrtacími soupravami a další profesionální technikou, se kterou dokážeme provést vrt i ve špatně přístupném místě nebo obtížně vrtaném podloží.

Safe building foundation

A high-quality, detailed survey and data evaluation by an experienced expert is essential for the subsequent design and construction of the building.

Petr Veleba

Project Manager

In the field of engineering geology, we conduct boreholes for any purpose

Exploratory boreholes for building foundations (residential and commercial buildings, industrial facilities, and shopping centers)
Exploratory boreholes for new water structures and their reconstruction
Exploratory boreholes to determine rock properties
Sampling boreholes for soil and groundwater sampling

How we work

Preparatory and research work

We first conduct an archival review of the existing geological survey data for the area. We then perform terrain reconnaissance and prepare an exploration plan, including marking locations for exploratory probes to avoid conflicts with existing utility networks.

Execution of field exploration work and evaluation

We drill exploratory probes, conduct penetration tests, and apply additional geophysical methods as needed. All geological work is documented, and we ensure the collection of necessary soil samples (disturbed, undisturbed, and others) and groundwater.
During fieldwork, we also perform additional required tasks as needed, such as contamination surveys, hydrogeological surveys, radon measurements, and other specific work.

Final report

We evaluate all data from fieldwork, archival research, and other sources in accordance with applicable ČSN standards and compile it into a textual report with additional attachments.
Descriptions of drill cores, penetration probes, and geological sections, processed in AutoCAD, Geo5, and other programs, are provided in electronic and paper formats (per client requirements).

Drilling rigs for various geological conditions

Drilling rig ZIF 650 M

The drilling rig is designed for both core and non-core rotary drilling with fluid flushing. The maximum initial drilling diameter is 425 mm, and the maximum depth reach is 500 m.

Drilling rig HVS 496

A medium drilling rig on a steel crawler chassis, equipped for core, percussion-rotary, and spiral drilling, designed for drilling holes with a diameter of 112–195 mm to a depth of up to 30 m.

Drilling rig HVS 497

A medium drilling rig on a steel crawler chassis with rotary percussion drilling is designed for non-core drilling with a diameter of 123–254 mm to a depth of up to 150 m.

Drilling rig WIRTH B1A

A mobile medium drilling rig is designed for core rotary drilling in dry conditions or core and non-core drilling with fluid flushing to a depth of up to 200 m.

Drilling rig HVS 09/WIRTH B2

A medium-heavy rotary drilling rig on a wheeled chassis, capable of dry drilling or drilling with fluid or air flushing, with core drilling (up to 500 mm) and rotary-percussion drilling (up to 305 mm).

Drilling rig UGB 1 VS

A drilling rig on a wheeled chassis capable of rotary core and non-core drilling, both dry and with fluid flushing, with a diameter of 275 mm to a depth of 50 m.

Drilling rig Geoprobe 7822 DT

A multifunctional drilling rig equipped with a hydraulic hammer featuring built-in rotational capability, along with a separate rotary head for spiral drilling.

Comacchio 900 P

A mobile drilling rig with a compact design, crawler chassis, and hydraulic system, suitable for core drilling, installation of monitoring wells, grouting, and remediation.

Chosen projects

Copa Center Národní - Quadrio

Demolition of the metro vestibule and escalator tunnel at the Národní Třída station

More information

Demolition of boiler room K2, including technologies

Demolition of the pump station and boiler room building and associated administrative buildings in Kladno-Dubí

More information

Administrative and commercial center Rustonka

Demolition of the boiler house, including the chimney and administrative buildings in Prague 8

More information

Do you have a question or would you like to order our services straight away?

We are happy to answer your questions and prepare a tailored solution. Please fill out a simple form, and we will contact you within 24 hours.

You can also reach us by phone: +420 235 522 252
or via e-mail at info@dekonta.cz