“ENGINEER – GEOLOGIST” LLC has been started its activity since February 03, 2016. Since the beginning of its activity, without any distinction between some clients, it successfully serves all its clients from small enterprises to large government agencies.
The activities of the company comprise engineering and geodesic works, engineering and geological survey works, engineering and hydrogeological survey works and geophysical works based on the license no. 088249 on the permit for “Engineering survey works of the buildings and wells which the permission is required for construction” issued by the Ministry of Economy of the Republic of Azerbaijan.
Engineering survey works serve the substantiation of construction and engineering defense measures of the facilities before the project and during designing and comprehensive study of engineering and geological conditions of regions and platforms where the construction is designed. As a result of these surveys, the study of the relief, geological structure, geomorphological, hydrogeological conditions of the territory, as well as, the composition, physical and mechanical properties of rocks in lithological cuts, the depth which underground waters are spread, specification of chemical composition of waters and exogenous and geological processes that may cause hazard.
“ENGINEER – GEOLOGIST” LLC provides topographic and geodesic services, drilling of engineering and geological wells, rock sample taking (by means of one layer, two layer, three layer and “Shellby tube” type sample takers, with broken and intact structure), spread of longitudinal and transverse waves on soils by geophysical methods – determination of seismicity, study of underground water spread by hydrogeological works, determination of chemical composition of underground waters, implementation of laboratory studies on the rock samples taken and other works which comprise the basis of modern engineering geology within the requirements of existing local and international standards for the purposes of the evaluation of engineering and geological conditions of the areas where designed buildings, plants and structures will be constructed (installed), study of the strength indicators of rocks which will play the role of foundation in future and detection of landslide zones that can be found in the area, karst gaps, mud volcanic breccias and other anomalous conditions that may have an impact on the stability of the construction.
● Driling works
● Topographic – Geodesic works
● Hydrogeological works
● Geotechnical studies
● Geophysical works
● Laboratory works
Our mission: Be as a continuous choice of clients with our professional workforce.
Our target: Become known as a company rendering high-level engineering and geological services while protecting the environment.
Safety: The main priority in our work is to maintain the highest level of security and prevent any accident.
Quality: Our focus is on providing high quality engineering, geological, hydrogeological data acquisition, processing and inspection.
Customer orientation: We meet and exceed the expectations of our customers at a high level to maintain long-term cooperation.
Innovation: We provide our employees with the latest technological equipment to enable them to do their works with better quality and create a business environment that gives rise to new promising ideas.
Topographic and geodesic works
Topographic and geodesic works are carried out using KC09 electronic tachometer at the construction and residential areas, water reservoirs and engineering structures, settlements and town neighborhoods. Information is processed and interpreted in AutoCad.
Accurate topoplan is used for any geological points seen, including for the purposes of development of general plan and implementation of the project during construction works.
Topogeodesic works carried out by the enterprise aim followings:
● Creation of topographic basis
● Topographic planning
● Marking facilities and linear devices and conversion in kind
● Conducting field inspections
Geological exploratory works are implemented by drilling exploratory wells. Drilling of wells is conducted by drilling devices of URB – 2A2 and UGB – 1VS brand mounted in the chassis of Kamaz – 43114 and Gaz – 66.
These field works are a major part of engineering and geological studies and serve to study the soils spread on the upper parts of earth’s crust.
Merely as a result of drilling, geological – lithological cuts of the areas where buildings and structures will be located at, including the depth of spread of layers, their thickness, and lithological composition are studied and rock samples are taken from the soils found for the purposes of laboratory study.
Rock sampling from wells is carried out by means of one layer, two layer and “Shelby tube” type sample taker during drilling.
Our geotechnical laboratory carries out the study and test of soils and water with high professionalism in accordance with standards ASTM, BS and GOST. The management of our laboratory gives instructions according to the highest quality standards while operating in compliance with standards “ISO 17025”, General requirements for the competence of testing and calibration laboratories” certifying that the laboratory is a ‘Testing laboratory”.
The following tests are conducted for soils:
- These tests are conducted by the standard ГОСТ.
- 1. Granulometric composition (sand, dust, clay fraction)
- 2. Natural humidity
- 3. Dense (volume weight), in natural and dry forms
- 4. Dense of solid particles
- 5. Porosity in % and the coefficient of porosity
- 6. Full moisture capacity
- 7. Humidity rate
- 8. Fluidity limit, Plasticity number and plasticity limit
- 9. Consistency (the indicator of fluidity)
- 10. Relative swelling
- 11. Sedimentation or tendency to sedimentation
- 12. Slope angle in sands
- 13. Relative deformation mm/mm
- 14. Deformation module kgg/cm²
- 15. Sedimentation module
- 16. R0 – Conditional and calculation pressure
- 17. Cohesive force
- 18. Internal friction angle
- 19. Chemical analysis of aqueous extract (SO4 and Cl aggressiveness) salinity, hardness
- 20. Chemical analysis of water
- 21. One axis rock
- These tests are conducted by standards ASTM and BS.
- Direct shear
- Triaxial compression
- Unconfirmed test of rock
By means of these surveys, it is possible to study the depth of spread of underground water, the thickness and composition of water layer. Piezometers are used for the determination of hydrogeological parameters in water horizons in the studies. The application of piezometers enables to determine the piezometric level in the point where the filter is placed.
For this purpose, hydrogeological exploration wells were drilled in the allocated areas and the depth of underground water, lithological composition of horizon and its thickness are determined. Successively, water intake tests are carried out, the debit of underground waters, the productivity of the layer and the filtration coefficient are calculated.
On the other hand, the source of supply of water horizon, its origin, level amplitude are determined, as a result of chemical analysis of water samples taken, their aggressive features against construction materials (structures made of reinforced concrete) are specified.
The deformation module of rock and disperse rock are determined up to a depth of 50 m through Menard Pressuremeter which is manufactured by APAGEO.
Pressuremeter tests are conducted as follows: camera with elastic walls are launched to the finished well. Then, this camera is filled up with water and determined pressure is applied to the soil. Later, deformation property (deformation module) is determined through measuring cylinder.
We’d like to mention additionally about pressuremeter that the strength and deformation properties of sandy and gravel – clay soils (with gravel mixture up to 30%) are evaluated more effectively by means of it.
The theoretical justification of the pressuremeter method lies in the fact that the deformation of soil occurs by the effect of stamp.
Increasing the pressure of pressuremeter on the well’s wall causes the deformation of mountainous rocks and this process occurs at 3 stages: compression, local displacement and disintegration. It is mainly intended that the deformation shall occur at 2 stages in soils for the development of calculation scheme: compression characterized with linear dependence of the deformation depending on the impact, including disintegrations happening from local displacements occurred depending pressure and deformation.
These surveys were implemented in accordance with the requirements of GOST 30672-99 (Soils. Field tests. General conditions) mainly under field conditions.
Geophysical surveys were conducted using seismological device “SARA RS232 electronic instruments”. Different points are used as a source energy along the profile by a blow with a hammer in order to get information.
Seismological software “DoReMi” was used under field conditions and SEİSMOWIN, PICWIN and PLOTREFA software was used for the processing and interpretation of received seismic information.
Using Refracted waves method (RWM) and Multichannel Analysis of Surface Waves (MASW), the borders and thicknesses of the layers were determined. MASW is also able to reflect the speed typical in this area and determine deceptive layers. It should be noted that the speed of discontinuous waves was found by MASW method and the speed of refracted waves by VS and Poisson ratio.
The purpose of seismic survey works is to determine longitudinal Vp and transverse Vs waves in the rocks forming the cut, separate layers according to the difference of velocities of the spread of P and S waves in the profile and track the cut in the field to the depth.
As a result of seismic survey works, the Poisson and Jung module of elasticity coefficients were calculated.