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Kemal Gutic

University of Tuzla, Faculty of Mining, Geology and Civil Engineering, Tuzla, Undergraduate

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Kemal S. Gutić is a professor, and the Dean of Faculty of Mining, Geology and Civil Engineering Tuzla, University of Tuzla. He was born on June 1,1968. in Omazići, Bosnia and Herzegovina, and graduated from the Faculty of Mining in Tuzla, University of Tuzla, on March 20, 1992. with further education in Austria, Poland, Germany, Slovenia, USA. He received his doctorate at the University of Tuzla in 2004 with the underground mineral resource exploitation as the narrow scientific field.

He has contributed to the organization of regional and world seminars, as well as being an author and co-author of many scientific and professional papers in the field of Economy, Mining, Geotechnics, Geology, Security, Construction. He coordinated the following projects: Erasmus BESTSDI, BAEKTEL, WUS AUSTRIA , TEMPUS, KA171 Higher Education Staff mobility, AGH University Krakow, Poland. IPA Interreg, - CBC RESPONSa, - LADY 2019-2026. Croatia-Bosna and Herzegovina-Montenegro, KIC RawMaterials, RIS - RESTORE EU 2022. Recovery of Mining District Network, Proposal reference: OC-2022-1-25985 COST Action CA 22138/ 2023-2027. REMINDNET REcovery MINing Districkt NET work.

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Papers by Kemal Gutic

THE ROLE AND IMPORTANCE OF PREVENTIVE SAFETY MEASURES AT WORK DURING THE PRODUCTION AND PROCESSING OF TECHNICAL STONE AT THE QUARRY

by Ekrem Bektasevic and Kemal Gutic

15th Scientific/Research Symposium with International Participation „METALLIC AND NONMETALLIC MATERIALS“ B&H, 24th and 25th April 2025, 2025

Quarries are surface mines where construction stone is exploatation and processed. Ensuring worke... more Quarries are surface mines where construction stone is exploatation and processed. Ensuring worker safety in quarries and preventing injuries are crucial for creating a safe working environment and maintaining a productive workplace. In this paper, the critical role and necessity of implementing preventive measures in the production and processing of technical stone in quarries are emphasized to enhance occupational safety measures. The identification of hazards and an accurate assessment of safety risks are fundamental to the success of any safety program. Based on identified potential hazards and risks, it is essential to define all necessary technical and organizational preventive measures. A key component in injury prevention and the mitigation of occupational illnesses is the education and training of workers to ensure safe and healthy work practices. Workers must be fully informed about all hazards and risks associated with their assigned tasks, as well as any potential dangers that may arise during movement and presence within the quarry. If training is limited to formal classroom instruction, workers may lack the ability to recognize all hazards and risks present in the quarry, both at their specific workplaces and within the broader operational environment.

Simpozijum metalicnih i nemetalicnih materijala

by Ekrem Bektasevic and Kemal Gutic

15th Scientific/Research Symposium with International Participation „METALLIC AND NONMETALLIC MATERIALS“ B&H, 24th and 25th April 2025, 2025

Quarries are surface mines where construction stone is exploatation and processed. Ensuring worke... more Quarries are surface mines where construction stone is exploatation and processed. Ensuring worker safety in quarries and preventing injuries are crucial for creating a safe working environment and maintaining a productive workplace. In this paper, the critical role and necessity of implementing preventive measures in the production and processing of technical stone in quarries are emphasized to enhance occupational safety measures. The identification of hazards and an accurate assessment of safety risks are fundamental to the success of any safety program. Based on identified potential hazards and risks, it is essential to define all necessary technical and organizational preventive measures. A key component in injury prevention and the mitigation of occupational illnesses is the education and training of workers to ensure safe and healthy work practices. Workers must be fully informed about all hazards and risks associated with their assigned tasks, as well as any potential dangers that may arise during movement and presence within the quarry. If training is limited to formal classroom instruction, workers may lack the ability to recognize all hazards and risks present in the quarry, both at their specific workplaces and within the broader operational environment.

Seismic Impact Assessment of Blasting on Surrounding Population Using Geophysical Methods

by Ekrem Bektasevic and Kemal Gutic

Engineering and Technology Journal e-ISSN: 2456-3358, 2025

The seismic impact of blasting on surrounding structures and population presents a significant en... more The seismic impact of blasting on surrounding structures and population presents a significant engineering and ecological challenge. This study utilizes geophysical methods to assess vibrations generated by blasting, analyzing factors influencing wave propagation, including geological characteristics of the terrain and distance of structures from the explosion source. Instrumental measurements show that vibrations do not always decrease proportionally with distance, but rather depend on the properties of the soil and mass of explosives. Timely informing the population about the timing and intensity of blasting is crucial to minimize negative effects and enhance safety. The research results emphasize the need for precise vibration and noise measurements, optimal placement of measuring devices, and expert coordination to minimize risks of damage to structures and negative impacts on people. These findings can serve as guidelines for assessing seismic effects of blasting in similar environments.

Research on the phenomenon of increasing borehole diameter at the installation of rod anchors in marl using wet technology compared to dry drilling procedure

by Ekrem Bektasevic and Kemal Gutic

Global Journal of Engineering and Technology Advances, 2025

The excavation of the "Kobilja Glava" tunnel takes place in a complex geological environment and ... more The excavation of the "Kobilja Glava" tunnel takes place in a complex geological environment and in a highly urbanized zone with an extremely large number of residential buildings located above both tunnel pipes, as well as in the very close distance of them. More exactly, at the entrance and exit tunnel portals there is a decaying crust whose thickness varies from 3.50 to 6.0 meters. It is an extremely incoherent material that is exposed to significant degradation processes under the influence of atmospheric conditions, which significantly create difficulties while prediction of the actual characteristics of material. Also, the excavation job is being carried out in a substrate that is made of marl, dark gray colour with a distinctly layered structure. For the purposes of this work, exploratory drillholes were drilled using two different technologies. The first implies that the drillholes are made using a wet procedure (flushing of the material from drillhole is done using water under pressure), with the measurement of the diameter of the drillhole at three reference locations inside the drillhole. For this technology the reference value of the drillhole diameter would be achieved by statistical processing. The second technology implied that the drilling of exploratory drillhole was carried with the same equipment, using a dry method (the mud of the material is carried out using compressed air), and that the diameter of the drillhole was recorded in the same way, under identical conditions. The aim of research was to establish how the applied wet drilling method affect to the degradation of the physical-mechanical characteristics of the marl, which has a several chain effects on the construction of the tunnel itself (increasing convergence due to the decreasing the physical-mechanical characteristics of the rock mass, the need for by applying additional supporting elements, increased consumption of injection mixture that results in an increase of negative impact on the environment, etc.

UNAPREĐIVANJE MJERA ZAŠTITE NA RADU U KAMENOLOMIMA PRI PROIZVODNJI I PRERADI TEHNIČKOG KAMENA

by Ekrem Bektasevic and Kemal Gutic

RUDARSKO-GEOLOŠKI GLASNIK, 2024

SAŽETAK Radnici u kamenolomima koji se bave eksploatacijom i preradom tehničkog kamena su izložen... more SAŽETAK
Radnici u kamenolomima koji se bave eksploatacijom i preradom tehničkog kamena su izloženi raznim opasnostima koje mogu uzrokovati ozljede, te povećanje rizika od razvoja zdravstvenih problema. U cilju unapređivanja mjera zaštite na radu u kamenolomima ovaj rad ukazuje na nekoliko radnji koje je neophodno provesti za unapređivanje sigurnosti i zaštite na radu. Poseban značaj ima procjena svih potencijalnih opasnosti po sigurnost i zdravlje uposlenih u kamenolomima, te na osnovu utvrđenih potencijalnih opasnosti i rizika sprovesti detaljno upoznavanje svakog radnika o opasnostima specifičnim za njegovo radno mjesto, kao i svim potencijalnim opasnostima koja se mogu desiti u toku kretanja i boravka u kamenolomu. Sve vidove obuka treba provoditi s radnicima a ne na radnicima u vidu teoretske i praktične obuke. Ukoliko se obuka svede samo na formalnu obuku u učionici radnici neće biti u mogućnosti prepoznati sve opasnosti i rizike koji se mogu javiti na kamenolomu, kako na svom radnom mjestu, tako i u kompletnom krugu kamenoloma.

Exploitation and Processing of Technical Stone from Quarries Plješevac Near Kiseljak

Glasnik Rudarsko-geološko-građevinskog fakulteta/Glasnik rudarsko-geološko-građevinskog fakulteta, Jul 1, 2024

Today, technical stone is a material that is used on a huge scale, and its annual consumption in ... more Today, technical stone is a material that is used on a huge scale, and its annual consumption in the world is expressed in thousands of millions of tons. The demand for construction, such as houses, hospitals, hotels, schools and so on, has expanded, especially in developing countries. One of the key elements that increases the demand for such products is the numerous government infrastructure projects and maintenance programs. All levels of government in Bosnia and Herzegovina strive to implement good infrastructure, because in this way they enable trade, support industry, connect workers with jobs, and in this way bring hope for prosperity in these areas. The paper gives a brief overview of the production and processing of dolomite from the "Plješevac" quarry near Kiseljak as a positive example from the practice of "production and processing from raw material to final product".

Recycling of Materials from the Excavation of the "Počitelj" Tunnel and Incorporation of the Obtained Products in the Tunnel Through Concrete and Blinding Layer

Glasnik Rudarsko-geološko-građevinskog fakulteta/Glasnik rudarsko-geološko-građevinskog fakulteta, Jul 1, 2024

In civil engineering or road construction, especially when constructing tunnels, large quantities... more In civil engineering or road construction, especially when constructing tunnels, large quantities of excavated material are created. In many cases, this material, if properly treated and processed, can be recycled and reused on site. If this material is not treated as planned from the beginning of the project, but is taken to the landfill and mixed with bad material or construction waste, then when the need for it arises, it is difficult to separate it and return it to the construction process. In the simplest case, the material can be used as an embankment to the extent that it meets the requirements regarding the quality of the embankment material. Better quality material can often be recycled to make fractions for various types of concrete, buffer aggregates or decorative stone walls (architectural stone). In the current example of the "Počitelj" tunnel, through tests of fractions, definition of recipes, recycled material from tunnel excavation was successfully used as aggregate for shotcrete, concrete for inner lining and construction, buffer, bedding for laying pipes and making front slopes from crushed stone. This reduced the purchase and transport of aggregates from local quarries to the minimum possible, thus saving resources, with financial benefit. In summary, through this example, it can be noted that the reuse of tunnel excavation will play an important role for future tunnel projects due to environmental and economic reasons.

Application of seismic methods for determining the depth of the rock mass damage zone around the excavation profile by blasting

by Kemal Gutic and Ekrem Bektasevic

Global Journal of Engineering and Technology Advances, Mar 30, 2024

Research and determination of the blasting damage zone around the profile of tunnels or undergrou... more Research and determination of the blasting damage zone around the profile of tunnels or underground structures is a platform that would serve to confirm or correct blasting parameters and underground assemblies, that is, geotechnical and main tunnel projects. From the obtained research, the stability of the excavation profile, as well as the safety risk for equipment and personnel on the construction site, would be better understood. Considering the importance of the size of the damage zone of the rock mass in terms of its influence on stability, the amount of primary support elements required to achieve the stability of the excavated space, and the additional costs of stabilization of the excavation and the safety of people and equipment, the aforementioned problem was investigated and processed for specific cases and for the rock mass characteristic for the location in question. From the described research, the change in the elastic characteristics of the rock mass and the depth of the damage zone around the tunnel excavation profile were measured and calculated.

Analysis of the Groundwater Influence on the Categorization of the Rock Mass and Support Type of the Zenica Tunnel on the Route of the VC Corridor

by Ekrem Bektasevic and Kemal Gutic

Journal of Faculty of Civil Engineering, Dec 31, 2022

The Zenica tunnel is located as part of the highway on the Vc corridor, Ponirak section-southern ... more The Zenica tunnel is located as part of the highway on the Vc corridor, Ponirak section-southern exit from the Zenica tunnel. The tunnel is a two-tube with a length of about 3.300 meters. During the excavation of the Zenica tunnel, large amounts of groundwater were recorded in several sections in both tunnel pipes, from wet to flowing. During the tunnel excavation, the engineering-geological data on the rocks through which the excavation was carried out was regularly recorded, and on the basis of these data, the RMR classification of the rock mass was determined. The paper presents one of the possible solutions to control the inflow of groundwater during tunnel excavation by making subhorizontal wells and installing self-drilling anchors for the purpose of directing groundwater into drainage pipes or tunnel sides. The main goal of controlling the groundwater inflow is to reduce the impact of groundwater on further tunnel excavation and to modify the category of rock mass (additional benefit), and thus to reduce the unit price of tunnel excavation.

Influence of Dust Emission Emitted from the Surface Quarry of Technical Stone on Air Quality

Engineering and technology journal, Dec 7, 2023

The impacts of exploitation and processing of technical stone on the environment can have differe... more The impacts of exploitation and processing of technical stone on the environment can have different levels of emissions and environmental devastation depending on the applied technological process for obtaining rock mass and production of stone aggregates, relief, climatic conditions, applied environmental protection measures and technological discipline. The primary impact of work processes on the environment during surface exploitation and processing of technical stone is manifested through emissions of mineral dust. In order to determine the impact of the exploitation of technical stone on air pollution, a dust emission calculation was performed according to the EPA methodology from an open pit mine that occasionally or never uses dust emission control during the process of production and processing of technical stone in order to assess its impact on air quality.

Numeričke Analize Stabilnosti Iskopa Tunela Ibarac I Stabilizacija Urušenog Dijela, Parking Niše

Prilikom iskopa tunela u u stijenskoj masi dolazi do promjene naponskog stanja, odnosno do pojave... more Prilikom iskopa tunela u u stijenskoj masi dolazi do promjene naponskog stanja, odnosno do pojave koncentracije napona oko konture iskopa. U radu je prikazano naponsko-deformacijsko stanje u stijenskoj masi i analiza zona tunela u kojima je već izveden iskop i primarna podgrada, a na kojima su deformacije znatno uvećane. Proračun, na bazi Metode konačnih elemenata (MKE), proveden je primjenom kompjuterskog programa PLAXIS 2D. Pomoću programa RocLab posebno su definisani ekvivalentni Mohr-Coulombovi parametri čvrstoće za svaku zonu i nastupajuću geološku jedinicu. Postupak/faze stabilizacije urušenog dijela tunela rađen je na primjeru tunela Ibarac. Ove analize stabilnosti ukazuju na područja u kojima se može očekivati lom stijenskog materijala, odnosno na mjesta na kojima treba poduzeti odgovarajuće mjere osiguravanja.

Determining the Optimal Method of Excavation of the Zenica Tunnel as a Function of Minimal Damage to Rock Mass of Poorer Quality Outside the Excavation Profile

by Kemal Gutic and Ekrem Bektasevic

Glasnik Rudarsko-geološko-građevinskog fakulteta, Sep 30, 2023

Corridor Vc enhances the connection of Bosnia and Herzegovina with neighboring countries and impr... more Corridor Vc enhances the connection of Bosnia and Herzegovina with neighboring countries and improves the potential for economic development. The Corridor Vc motorway in Bosnia and Herzegovina stretches from the northern border with the Republic of Croatia from Svilaj to Čapljina on the southern border with the Republic of Croatia, in Bijača. The Zenica tunnel is part of the Corridor Vc motorway in the municipality of Zenica and is currently the longest excavated tunnel with a total length of 3,330 meters. Excavation works were performed by a combination of blasting and machine excavation. The excavation of the tunnel was performed in sedimentary formations (flysch-like Upper Vranduk series 2 JK). Excavation of tunnels by blasting with adjusted drilling and blasting parameters in rock mass of poorer quality achieves better results in relation to machine excavation.

Excavation of the foundation of piers S1L and S1R of the Vranduk I bridge by controlled blasting on the motorway route: Zenica Municipality Northern Administrative Boundary - Zenica North

e-zbornik. Elektronički zbornik radova Građevinskog fakulteta, Dec 20, 2023

The Vranduk I bridge is located on the motorway route, on the part of the subsection: Zenica Muni... more The Vranduk I bridge is located on the motorway route, on the part of the subsection: Zenica Municipality Northern Administrative Boundary-Zenica North. The bridge consists of two parallel structures, one for the left side, and the other for the right side of the motorway. The Vranduk I bridge rests on three piers. The paper deals with the excavation of the pier site S1R and S1L by controlled blasting. By correctly choosing the equipment for drilling blast holes, defining the drilling and blasting parameters and excavation steps, a minimal zone of damage to the surrounding rock outside the line of excavation of pier sites S1R and S1L, which is inevitable during blasting excavation, has been achieved, which has the effect of preserving the bearing capacity of the rock mass as the most important supporting element.

EXPLOITATION AND PROCESSING OF TECHNICAL STONE FROM QUARRIES PLJEŠEVAC NEAR KISELJAK

by Ekrem Bektasevic, Kemal Gutic, and Valjevac Mujo

JOURNAL OF FACULTY OF MINING, GEOLOGY AND CIVIL ENGINEERING, 2024

Today, technical stone is a material that is used on a huge scale, and its annual consumption in ... more Today, technical stone is a material that is used on a huge scale, and its annual consumption in the world is expressed in thousands of millions of tons. The demand for construction, such as houses, hospitals, hotels, schools and so on, has expanded, especially in developing countries. One of the key elements that increases the demand for such products is the numerous government infrastructure projects and maintenance programs. All levels of government in Bosnia and Herzegovina strive to implement good infrastructure, because in this way they enable trade, support industry, connect workers with jobs, and in this way bring hope for prosperity in these areas. The paper gives a brief overview of the production and processing of dolomite from the "Plješevac" quarry near Kiseljak as a positive example from the practice of "production and processing from raw material to final product".

RECYCLING OF MATERIALS FROM THE EXCAVATION OF THE "POČITELJ" TUNNEL AND INCORPORATION OF THE OBTAINED PRODUCTS IN THE TUNNEL THROUGH CONCRETE AND BLINDING LAYER

by Ekrem Bektasevic and Kemal Gutic

JOURNAL OF FACULTY OF MINING, GEOLOGY AND CIVIL ENGINEERING, 2024

In civil engineering or road construction, especially when constructing tunnels, large quantities... more In civil engineering or road construction, especially when constructing tunnels, large quantities of excavated material are created. In many cases, this material, if properly treated and processed, can be recycled and reused on site. If this material is not treated as planned from the beginning of the project, but is taken to the landfill and mixed with bad material or construction waste, then when the need for it arises, it is difficult to separate it and return it to the construction process. In the simplest case, the material can be used as an embankment to the extent that it meets the requirements regarding the quality of the embankment material. Better quality material can often be recycled to make fractions for various types of concrete, buffer aggregates or decorative stone walls (architectural stone). In the current example of the "Počitelj" tunnel, through tests of fractions, definition of recipes, recycled material from tunnel excavation was successfully used as aggregate for shotcrete, concrete for inner lining and construction, buffer, bedding for laying pipes and making front slopes from crushed stone. This reduced the purchase and transport of aggregates from local quarries to the minimum possible, thus saving resources, with financial benefit. In summary, through this example, it can be noted that the reuse of tunnel excavation will play an important role for future tunnel projects due to environmental and economic reasons.

TEHNOLOGIJA ISKOPA CESTOVNOG TUNELA HRANJEN MEHANIZOVANIM KONCEPTOM

Nauka+Praksa , 2024

Bosna i Hercegovina je zemlja u kojoj uglavnom preovladava brdsko planiniski reljef, pa izrada no... more Bosna i Hercegovina je zemlja u kojoj uglavnom preovladava brdsko planiniski reljef, pa izrada nove putne infrastrukture ne predstavlja nimalo jednostavan zadatak, odnosno u manjoj ili većoj mjeri ovisno od konfiguracije terena nameće se kao potreba stalna izrada nadzemnih i podzemnih objekata kao što su mostovi, vijadukti i tuneli. Izrada cestovnog tunela Hranjen kao sastavnog dijela buduće brze ceste Prača-Hranjen-Goražde u istočnom dijelu zemlje predstavlja jedan od najzahtjevnijih projekata posljednih decenija, a u momentu završetka izrade sa dužinom od preko 5.500,0 m tunel Hranjen predstavljati će najduži cestovni tunel u zemlji. S obzirom na složenost i kompleksnost koja proizilazi iz uslova radne sredine, odnosno izmjenjenih geoloških uslova sa kojima se učesnici u izradi susreću u odnosu na projektom predviđene uslove, daje se prikaz tehnologije njegove izrade, u konkretnom slučaju iskopa tunela primjenom mehanizovanog koncepta.

ODREĐIVANJE DUBINE ZONE OŠTEĆENJA STIJENSKE MASE OKO PROFILA ISKOPA MINIRANJEM SEIZMIČKOM CROSS-HOLE TOMOGRAFIJOM U TUNELU "ŠUBIR" NA AUTOCESTI ZAGREB-SPLIT

by Ekrem Bektasevic and Kemal Gutic

Nauka+Praksa, 2024

Miniranje je široko primijenjena metoda iskopa u podzemnoj gradnji u I, II, III i IV kategoriji s... more Miniranje je široko primijenjena metoda iskopa u podzemnoj gradnji u I, II, III i IV kategoriji stijenske mase. Međutim, vibracije izazvane eksplozijom, ako nisu pravilno kontrolisane, mogu negativno utjecati na stijensku masu koja okružuje tunel. Nekvalitetan iskop primjenom tehnike miniranja može uzrokovati povećani prekoprofilni iskop i prekomjerno rastresanje okolnog stijenskog masiva te smanjenje nosivosti stijene koja je osnovni podgradni element. Određivanje dubine zone oštećenja stijenske mase oko profila iskopa miniranjem seizmičkom cross-hole tomografijom imala su za cilj odrediti dubinu zone oštećenja i promjene fizičko-mehaničkih svojstava materijala oko konturne površine podzemnog iskopa u III kategoriji stijenske mase, odnosno odrediti intenzitet oštećenja unutar poremećene zone ovisno o udaljenosti od minskog polja i parametara bušenja i miniranja.

Road and Rail Infrastructure VIII

by Ekrem Bektasevic and Kemal Gutic

CETRA 2024, 2024

The problem of large deformations is very pronounced when excavating longer tunnels in poorer roc... more The problem of large deformations is very pronounced when excavating longer tunnels in poorer rock mass, which can result in serious potential hazards to safety, costs and time of tunnel construction. Taking the Golubinja tunnel, located on the route of corridor Vc, as an engineering background, displacement monitoring was carried out on a certain section of the right tunnel tube with a length of approximately m'. Displacement monitoring was carried out in relation to different distances during the excavation of the top heading-bench and the bench-primary invert in a poorer rock mass with a defined RMR of to points. The designed tunnelling method is based on the principles of the New Austrian Tunnelling Method "NATM". The results show that in complex geological conditions, displacements can be effectively controlled by defining the optimal distance between the excavation phases of the top heading-bench and the bench-primary invert. Through a detailed analysis of the collected data, the mathematical functions of the dependence of the displacement in relation to the distances between the excavation phases of the top heading-bench and the bench-primary invert were obtained. The functions can be used as a tool for a quick and simple analysis of displacements depending on the distance between the excavation phases of the top heading-bench, and the bench-primary invert in a poor rock environment.

Determining the optimal method of excavation of the Zenica tunnel as a function of minimal damage to rock mass of poorer quality outside the excavation profile

by Sead Kadric, Kemal Gutic, and Ekrem Bektasevic

E-Zbornik, elektronički zbornik radova Građevinskog fakulteta

Corridor Vc enhances the connection of Bosnia and Herzegovina with neighboring countries and impr... more Corridor Vc enhances the connection of Bosnia and Herzegovina with neighboring countries and improves the potential for economic development. The Corridor Vc motorway in Bosnia and Herzegovina stretches from the northern border with the Republic of Croatia from Svilaj to Čapljina on the southern border with the Republic of Croatia, in Bijača. The Zenica tunnel is part of the Corridor Vc motorway in the municipality of Zenica and is currently the longest excavated tunnel with a total length of 3,330 meters. Excavation works were performed by a combination of blasting and machine excavation. The excavation of the tunnel was performed in sedimentary formations (flysch-like Upper Vranduk series 2 JK). Excavation of tunnels by blasting with adjusted drilling and blasting parameters in rock mass of poorer quality achieves better results in relation to machine excavation.

Application of seismic methods for determining the depth of the rock mass damage zone around the excavation profile by blasting

by Ekrem Bektasevic and Kemal Gutic

Global Journal of Engineering and Technology Advances, 2024

Research and determination of the blasting damage zone around the profile of tunnels or undergrou... more Research and determination of the blasting damage zone around the profile of tunnels or underground structures is a platform that would serve to confirm or correct blasting parameters and underground assemblies, that is, geotechnical and main tunnel projects. From the obtained research, the stability of the excavation profile, as well as the safety risk for equipment and personnel on the construction site, would be better understood. Considering the importance of the size of the damage zone of the rock mass in terms of its influence on stability, the amount of primary support elements required to achieve the stability of the excavated space, and the additional costs of stabilization of the excavation and the safety of people and equipment, the aforementioned problem was investigated and processed for specific cases and for the rock mass characteristic for the location in question. From the described research, the change in the elastic characteristics of the rock mass and the depth of the damage zone around the tunnel excavation profile were measured and calculated.