Laboratory for Engineering Geology and Hydrogeology

Lab activity

Laboratory for Engineering Geology and Hydrogeology is used for education and for research in the framework of scientifi c and professional projects.
Within the courses, the soil samples collected in the fi eld are identified and equipment for geotechnical investigations is presented to the students. Granulometric analysis and preparation of samples for testing of hydraulic conductivity in the permeameter, experiments determining the hydrogeologic parameters (porosity, specifi c provision, dispersion), and display of equipment and work with equipment for hydrogeological fi eld investigations are also performed within the courses.
In addition, for scientifi c research purposes as well as for cooperation with the industry, the laboratory engages in determining of the core drilling samples, sampling for the purpose of engineering geological testing, storage of hydrogeological equipment, preparation of the equipment for fi eld work and storage of samples taken in the fi eld, for further hydrogeological research in the Laboratory.

Head of the Lab: This email address is being protected from spambots. You need JavaScript enabled to view it., Assoc. Prof., PhD

Services:

  • The lab does not provide individual services; it is used for engineering geological and hydrogeological projects.
Analytical procedure and test method
Analytical procedure

Test method


 

 

 

 

 

 

 

Small and medium sized equipment
Name inventory Tech.characteristics Application Image

Geological compass Brunton

 

Geological mapping

Geoloski kompas

Landrover Defender 110 TD5

2495 ccm; 90 KW; 122 PS

Transportation of people and equipment

Landrover

Portable press for soil

 

Soil clasification

Mala presa

Gauge the level of groundwater

 

Measuring the levels of groundwater

Mjerac RPV

Flourometar

Allows simultaneous use of three tracers and independent turbidity measurement.

Tracing experiments 

Flourometar

HOBO loger – electrical conductivity meter

Memory - 18,500 temperature and conductivity measurements
Sample rate - 1 second to 18 hrs
Calibrated Range - Conductivity: Low Range: 0 to 1,000 µS/cm; Full Range: 0 to 10,000 µS/cm - Temperature: 5 to 35C (41 to 95F)

Automated measurements of electrical conductivity and temperature of ground water in piezometers

Mjerac el vodljivosti

HOBO loger – gauge the level of groundwater

Operation Range - 0 to 207 kPa (0 to 30 psia); approximately 0 to 9 m (0 to 30 ft) of water depth at sea level, or 0 to 12 m (0 to 40 ft) of water at 3,000 m (10,000 ft) of altitude
Water Level Accuracy - Typical error: ±0.05% FS, 0.5 cm (0.015 ft) water
Maximum error: ±0.1% FS, 1.0 cm (0.03 ft) water

Automated measurements of ground water levels in piezometers

Mjerac razine podzemne vode

Permeameter with variable levels

Cell - Plated seamless tube 100 mm diameter x 130 mm height
Base -  Porous plate with three tie rods
Top plate - Machined to accept smaller tubes
Weight 3.4 kg

For materials with low permeability (K=10-5-10-9 m/s)

Permeametar

Set sampling aqueous soil porous plates

Dimension of plate: 50 x 50 cm
Membrane material: polyamide
Pore size: 0,45 μm

Field measurements
Leaching, transport
studies, model calibration
Ecological impact studies
Agricultural or forestal studies

Prozirne ploce

Probes for electro conductivity

Probes lenght: 45 cm
Measuring range: 0 μS/cm ... 20000 μS/cm

Field measurements
Leaching, transport
studies, model calibration
Ecological impact studies
Agricultural or forestal studies

Sonde za el vodljivost

Tenziometer T4

Measuring range: +100 kPa ... -85 kPa
Accuracy: ±0.5 kPa
Shaft: Ø 25 mm
Shaft lengths: 10 ... 200 cm
Porous ceramic: Ø 24 mm; length 60 mm

Field measurements
Water balance, leaching, transport
studies, model calibration
Ecological impact studies
Agricultural or forestal studies
In-situ retention curves

Tenziometar

Instrument for determining the strength of the point

 

Rock classification

Aparat za određivanje čvrstoće u točki

Polarizing microscope Leica DMLP with camera DFC280

Source of transmitted and reflected light, magnification up to 400×

Microscopic and petrographic recognition of minerals and rocks with camera for photomicrography

Polarizacijski mikroskop

Soil sampling kit

7,5 m

Soil sampling

Sampling kit

Schmidtov hammer

tip L 0,74 Nm

Schmidt strength rock for rocks classification and joint wall strenth

Schmidt

GeoCollector

Rugged handheld computer, GIS fiel mapping software, Global Navigation Satellite System (GNSS) receiver with professional-grade accuracy
416 MHz processor running the Microsoft Windows Mobile 5.0 software
512 MB memory
802.11b wireless LAN connectivity
Bluetooth
Rechargeable battery for all-day useGeological mapping

Geološko kartiranje

GeoCollector

Trinocular loupe Optika SZ-T1

45x magnification, digital camera 5 Mpix

Stratigraphic determination of fossils and extraction of vulcanic ash and mineral in fine grained fraction

Trinokularna lupa Optika

Portable rock tester

120 000 kg

Rock classification

Velika presa

Teaching in the laboratory

Teaching in the laboratory (students' practical work) in 2016/2017

Course title

Mandatory or Elective course

Number of hours of practical work in lab

Number of students per group

Number of groups

Dynamics of groundwater flow 1

Mandatory

4

13

2

Hydrogeology 2

Mandatory

4

13

2

Borehole and water well construction

Elective

4

12

1

Designing of Research in Hydrogeology

Elective

2

7

1

Teaching in the laboratory (Students scientifice research)

 Teaching in the laboratory in 2016/2017 (Students scientifice research)

Name and surname of student

Thesis title

MSc thesis

Marija Čambala

Determination of hydraulic conductivity using permeameter with constant head on the left hinterland of the eastern part of Zagreb aquifer

Projects in the laboratory

Projects in the laboratory in 2016/2017 

Scientific research (including University support)

Estimation of nitrate origin in Zagreb aquifer system

Quantification of effective infiltration by establishing a research polygon

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NAVIGATION