Ground support for tunnels in rock

(29 student reviews)

50 hours / 6 weeks

Online course

Dates: 18th of April to 30th of May

Standard Unemployed Or Student
$322 $253

Introduction

One of the most important tasks of a tunneling/mining professional is to develop construction and ground support methods that achieve safe underground excavations. Safety must be guaranteed not only throughout the design life of the structure (long-term) but also during construction (short-term). To successfully complete this task, engineers must have, as a minimum, basic knowledge of the design principles associated with ground support. The purpose of this course is to provide the learner with easy-to-understand introductions to some of the knowledge required to design ground support for tunnels in rock.

Firstly, it is essential to understand what failure mechanisms need to be addressed via design. In rock tunnels, these failure mechanisms are different than those observed in soft ground tunneling and soil mechanics due to the discontinuous nature of rock masses. One must consider and understand the inherent inter-relation between these failure mechanisms and the three basic ground support principles in rock tunneling: (a) suspension, (b) reinforcement and (c) surface retention. Secondly, the designer must also understand the inter-relationship between these failure mechanisms and construction methods. For example, the same ground support could be either safe or unsafe depending on the time of its installation (advance and support sequence) or if the tunnel has been excavated in full face or multiple headings (excavation sequence). Another example is the method of excavation and its associated impacts on ground support performance. For example, mechanized excavation methods such as roadheaders are much less likely to disturb the rock mass around the excavation opening than in drill and blast operations which certainly improve the performance of both reinforcing and surface retention elements (e.g. rockbolts and sprayed concrete linings)

Last, but not least, engineers must understand the most fundamental difference between the concepts used in the design of ground support and those used in the design of other structures, such as bridges or buildings, particularly when using a Load and Resistance Factor Design (LRFD) approach. The main component that loads a tunnel support is the ground or rock mass which also provides resistance. In other words, load and resistance are interdependent. With some exceptions, this also means that the design of ground support is inherently associated with displacement-controlled failure mechanisms where loads are not constant but a function of deformation. This also explain why some yielding is acceptable in ground engineering whereas it is avoided in other fields of engineering where failure mechanisms are load-controlled, e.g. the structural design of bridges.

 

Objectives

By the end of this course, you will have the needed background and basic knowledge to understand:

  • The typical failure mechanisms in rock tunnels and how to address them
  • The inter-dependency between loads and resistance and its impact on design
  • The basic ground support design principles in rock tunneling: (a) suspension, (b) reinforcement and (c) surface retention.
  • The detailed design of rockbolts and sprayed concrete linings
  • The impact of construction methods and excavation sequence

All subjects will be explained with easy to understand examples. Lessons will mainly focus on practical aspects of actual designs such that the contents of this course cannot be found in a single textbook. Where applicable and possible, design tools in the form of spreadsheets and trial period of useful programs will also be provided.

 


Limited places.

Module 1: Brief overview of Rock Mechanics

  • – Rock classification
  • – Strength and deformability of intact rock
  • – Strength and deformability of rock discontinuities
  • – Strength and deformability of rock masses
  • – Continuum versus discontinuum modelling

Module 2: Ground Behaviour and Ground-Structure Interaction

  • – Failure Mechanisms and their impact on ground support
  • – Displacement-controlled versus load-controlled mechanisms
  • – Design Principles: (a) suspension, (b) reinforcement and (c) surface retention
  • – Use of numerical methods

Module 3: Design of rock bolts

  • – Types of rockbolts
  • – Suspension effect
  • – Reinforcement effect
  • – Use of numerical methods

Module 4: Design of sprayed concrete linings

  • – Impact on global or large-scale stability
  • – Design against local instability or small rock wedges
  • – Fibre versus mesh reinforcement
  • – Basics design requirements for fibre-reinforced sprayed concrete linings

Module 5: Effect of construction methods and excavation sequence

  • – Advance length, unsupported ground and personnel re-entry requirements
  • – 3D effects on support installation
  • – Impact of excavation sequence on support performance
  • – Need for pre-support or pre-reinforcement

David Oliveira

David is a Chartered Professional Engineer and Fellow of Engineers Australia (FIAust) with over 20 years of experience in geotechnical and civil engineering and highly regarded technical competence. He is passionate about innovation and intelligent risk taking in ground engineering and focus on delivering the highest levels of service and quality engineering to clients.

David is also an Adjunct Principal Fellow at the University of Wollongong, casual Lecturer at the University of Sydney and reviewer of International Journals such as the Canadian Geotechnical Journal, Computers and Geotechnics, International Journal of Rock Mechanics and Mining Science, Rock Mechanics and Rock Engineering and Proceedings of the Institution of Civil Engineers (UK)-Civil Engineering. He provides Technical Expertise and Advice on Underground Space Geomechanics, Ground Behaviour, Rock Mechanics and Numerical Modelling issues.

David is the receipient of a few technical awards such as the 2016 Australian Geomechanics Award while in 2012 he received the distinguished Coffey Medal Award for Technical Excellence in Consulting, a global award within Coffey. In 2009 he also received the David Sugden Award from the Australasian Tunnelling Society for young tunnelling engineers.

David has been involved on a broad range of projects varying from complex open pit designs and deep and highly stressed underground mines to major infra-structure civil projects within densely populated cities (tunnels, motorways, etc.).

The course is delivered online through our easy-to-use Virtual Campus platform. For this course, a variety of content is provided including:

– eLearning materials
– Videos
– Interactive multimedia content
– Live webinar classes
– Texts and technical articles
– Case studies
– Assignments and evaluation exercises

Students can download the materials and work through the course at their own pace.
We regularly update this course to ensure the latest news and state-of-the-art developments are covered, and your knowledge of the subject is current.

Live webinars form part of our course delivery. These allow students and tutors to go through the course materials, exchange ideas and knowledge, and solve problems together in a virtual classroom setting. Students can also make use of the platform’s forum, a meeting point to interact with tutors and other students.

The tutoring system is managed by email. Students can email the tutor with any questions about the course and the tutor will be happy to help.

This course is aimed at professionals who have some undergraduate understanding of soil mechanics or geomechanics, such as:

  • – Geology, Geological, Mining and Geotechnical/Civil Engineering post-graduate students interested in learning the principles of ground support for support
  • – Geology, Geological, Mining and Geotechnical/Civil Engineering professionals who want to pursue or transition into a tunneling career
  • – Tunneling practitioners (technicians and engineers alike) who need to refresh or update their knowledge of ground support for tunnels in rock
  • – Structural Engineering professionals who want to have a more comprehensive understanding of Ground Support Design for tunnels in rock

Once a student finishes the course and successfully completes the assignments and evaluation tests, they are sent an accreditation certificate. The certificate is issued by Ingeoexpert to verify that the student has passed the course. It is a digital certificate that is unique and tamper-proof – it is protected by Blockchain technology. This means it is possible for anyone to check that it is an authentic, original document.

You will be able to download the certificate in an electronic format from the Virtual Campus platform. The certificate can be forwarded by email, shared on social networks, and embedded on websites. To see an example, click here.

Underground structures are one of the best solutions for urban problems and for interurban links in mountainous landscape. A wide range of underground structures are continuously needed to improve living conditions in cities. Tunnels for transportation (motorways, metros) and for public utilities (water supply, sewerage, electrical and telephone cables) are a priority in most developing countries, and underground structures for city center revitalization and for public use (libraries, museums, car parking, entertainment and leisure facilities) are of great interest in developed countries. Whatever the type of underground structures in an urban environment, they all aim to free surface space for more noble human needs, improving the living conditions of our cities. In the case of interurban links, long-length tunnels are justified by saving time and reducing costs (shorter journeys and less energy consumption), maximizing safety and minimizing environmental impacts. There has never been a better time to become a tunneling engineer and this video by the ITA-AITES explains it well: https://www.youtube.com/watch?v=hvDhlSpfjC0

Introduction

One of the most important tasks of a tunneling/mining professional is to develop construction and ground support methods that achieve safe underground excavations. Safety must be guaranteed not only throughout the design life of the structure (long-term) but also during construction (short-term). To successfully complete this task, engineers must have, as a minimum, basic knowledge of the design principles associated with ground support. The purpose of this course is to provide the learner with easy-to-understand introductions to some of the knowledge required to design ground support for tunnels in rock.

Firstly, it is essential to understand what failure mechanisms need to be addressed via design. In rock tunnels, these failure mechanisms are different than those observed in soft ground tunneling and soil mechanics due to the discontinuous nature of rock masses. One must consider and understand the inherent inter-relation between these failure mechanisms and the three basic ground support principles in rock tunneling: (a) suspension, (b) reinforcement and (c) surface retention. Secondly, the designer must also understand the inter-relationship between these failure mechanisms and construction methods. For example, the same ground support could be either safe or unsafe depending on the time of its installation (advance and support sequence) or if the tunnel has been excavated in full face or multiple headings (excavation sequence). Another example is the method of excavation and its associated impacts on ground support performance. For example, mechanized excavation methods such as roadheaders are much less likely to disturb the rock mass around the excavation opening than in drill and blast operations which certainly improve the performance of both reinforcing and surface retention elements (e.g. rockbolts and sprayed concrete linings)

Last, but not least, engineers must understand the most fundamental difference between the concepts used in the design of ground support and those used in the design of other structures, such as bridges or buildings, particularly when using a Load and Resistance Factor Design (LRFD) approach. The main component that loads a tunnel support is the ground or rock mass which also provides resistance. In other words, load and resistance are interdependent. With some exceptions, this also means that the design of ground support is inherently associated with displacement-controlled failure mechanisms where loads are not constant but a function of deformation. This also explain why some yielding is acceptable in ground engineering whereas it is avoided in other fields of engineering where failure mechanisms are load-controlled, e.g. the structural design of bridges.

 

Objectives

By the end of this course, you will have the needed background and basic knowledge to understand:

  • The typical failure mechanisms in rock tunnels and how to address them
  • The inter-dependency between loads and resistance and its impact on design
  • The basic ground support design principles in rock tunneling: (a) suspension, (b) reinforcement and (c) surface retention.
  • The detailed design of rockbolts and sprayed concrete linings
  • The impact of construction methods and excavation sequence

All subjects will be explained with easy to understand examples. Lessons will mainly focus on practical aspects of actual designs such that the contents of this course cannot be found in a single textbook. Where applicable and possible, design tools in the form of spreadsheets and trial period of useful programs will also be provided.

 


Limited places.

Read more

Module 1: Brief overview of Rock Mechanics

  • – Rock classification
  • – Strength and deformability of intact rock
  • – Strength and deformability of rock discontinuities
  • – Strength and deformability of rock masses
  • – Continuum versus discontinuum modelling

Module 2: Ground Behaviour and Ground-Structure Interaction

  • – Failure Mechanisms and their impact on ground support
  • – Displacement-controlled versus load-controlled mechanisms
  • – Design Principles: (a) suspension, (b) reinforcement and (c) surface retention
  • – Use of numerical methods

Module 3: Design of rock bolts

  • – Types of rockbolts
  • – Suspension effect
  • – Reinforcement effect
  • – Use of numerical methods

Module 4: Design of sprayed concrete linings

  • – Impact on global or large-scale stability
  • – Design against local instability or small rock wedges
  • – Fibre versus mesh reinforcement
  • – Basics design requirements for fibre-reinforced sprayed concrete linings

Module 5: Effect of construction methods and excavation sequence

  • – Advance length, unsupported ground and personnel re-entry requirements
  • – 3D effects on support installation
  • – Impact of excavation sequence on support performance
  • – Need for pre-support or pre-reinforcement

Read more

David Oliveira

David is a Chartered Professional Engineer and Fellow of Engineers Australia (FIAust) with over 20 years of experience in geotechnical and civil engineering and highly regarded technical competence. He is passionate about innovation and intelligent risk taking in ground engineering and focus on delivering the highest levels of service and quality engineering to clients.

David is also an Adjunct Principal Fellow at the University of Wollongong, casual Lecturer at the University of Sydney and reviewer of International Journals such as the Canadian Geotechnical Journal, Computers and Geotechnics, International Journal of Rock Mechanics and Mining Science, Rock Mechanics and Rock Engineering and Proceedings of the Institution of Civil Engineers (UK)-Civil Engineering. He provides Technical Expertise and Advice on Underground Space Geomechanics, Ground Behaviour, Rock Mechanics and Numerical Modelling issues.

David is the receipient of a few technical awards such as the 2016 Australian Geomechanics Award while in 2012 he received the distinguished Coffey Medal Award for Technical Excellence in Consulting, a global award within Coffey. In 2009 he also received the David Sugden Award from the Australasian Tunnelling Society for young tunnelling engineers.

David has been involved on a broad range of projects varying from complex open pit designs and deep and highly stressed underground mines to major infra-structure civil projects within densely populated cities (tunnels, motorways, etc.).

Read more

The course is delivered online through our easy-to-use Virtual Campus platform. For this course, a variety of content is provided including:

– eLearning materials
– Videos
– Interactive multimedia content
– Live webinar classes
– Texts and technical articles
– Case studies
– Assignments and evaluation exercises

Students can download the materials and work through the course at their own pace.
We regularly update this course to ensure the latest news and state-of-the-art developments are covered, and your knowledge of the subject is current.

Live webinars form part of our course delivery. These allow students and tutors to go through the course materials, exchange ideas and knowledge, and solve problems together in a virtual classroom setting. Students can also make use of the platform’s forum, a meeting point to interact with tutors and other students.

The tutoring system is managed by email. Students can email the tutor with any questions about the course and the tutor will be happy to help.

Read more

This course is aimed at professionals who have some undergraduate understanding of soil mechanics or geomechanics, such as:

  • – Geology, Geological, Mining and Geotechnical/Civil Engineering post-graduate students interested in learning the principles of ground support for support
  • – Geology, Geological, Mining and Geotechnical/Civil Engineering professionals who want to pursue or transition into a tunneling career
  • – Tunneling practitioners (technicians and engineers alike) who need to refresh or update their knowledge of ground support for tunnels in rock
  • – Structural Engineering professionals who want to have a more comprehensive understanding of Ground Support Design for tunnels in rock

Read more

Once a student finishes the course and successfully completes the assignments and evaluation tests, they are sent an accreditation certificate. The certificate is issued by Ingeoexpert to verify that the student has passed the course. It is a digital certificate that is unique and tamper-proof – it is protected by Blockchain technology. This means it is possible for anyone to check that it is an authentic, original document.

You will be able to download the certificate in an electronic format from the Virtual Campus platform. The certificate can be forwarded by email, shared on social networks, and embedded on websites. To see an example, click here.

Read more

Underground structures are one of the best solutions for urban problems and for interurban links in mountainous landscape. A wide range of underground structures are continuously needed to improve living conditions in cities. Tunnels for transportation (motorways, metros) and for public utilities (water supply, sewerage, electrical and telephone cables) are a priority in most developing countries, and underground structures for city center revitalization and for public use (libraries, museums, car parking, entertainment and leisure facilities) are of great interest in developed countries. Whatever the type of underground structures in an urban environment, they all aim to free surface space for more noble human needs, improving the living conditions of our cities. In the case of interurban links, long-length tunnels are justified by saving time and reducing costs (shorter journeys and less energy consumption), maximizing safety and minimizing environmental impacts. There has never been a better time to become a tunneling engineer and this video by the ITA-AITES explains it well: https://www.youtube.com/watch?v=hvDhlSpfjC0

Read more

29 reviews for Ground support for tunnels in rock

  1. Rasmus Bjoerkman

    This course helped me immensely on how to adopt different approaches, fundamental principles and common rock engineering tools compared to how I’m used to adopt these. Most of my background is from Stockholm(Hard crystalline rock environment) and being put in a completely new geological environment here in Sydney(Sedimentary rock environment) has been challenging. The basic principles are the same but being provided key papers and having crucial tweaks to theories explained to you in person make all the difference.

    I’m now in a much better position to proceed my career as a Tunnel Engineer in Australia.

    Thank you David!

  2. Sina

    David is an excellent instructor and researcher. What I most appreciate about him is his different thinking method about the tunnel/rock mechanics problems. He has always something new to teach/discuss. I really enjoyed this online course and would definitely participate in other more advanced geotechniocal/tunnel courses proposed by him in the future.
    Thank you so much David

  3. Alex

    I highly recommend Dr. Oliveira`s course. The course modules are explained in detail and all aspects of tunnelling design are covered, including cutting edge case studies and numerical modelling.
    Dr. Oliveira is highly skilled in numerical modelling and other design software (such as the ones developed by Rocscience Inc.) which have been used to carry out course related design. Answers and explanations have been provided to all questions.

  4. Yucânia Da Cruz

    Just like the rest of the class said, David is an excellent instructor.
    Being a engineer geologist with a short experience in tunneling surveillance, the course helped me to gain a geotechnical knowledge and to understand the geotechnical side during design phase.
    David made an extraordinary work to make us understanding the importance of numerical modeling while providing us practical/realistic cases.
    Thank you!

  5. Wei She

    Great course by master David. Highly recommend.

  6. Desmond Vlietstra

    This course has an excellent balance of background, theory and practical information and is extremely well presented I would highly recommend this course, regardless of your level of knowledge there is something here for anyone from young graduates to long practicing practitioners and anyone in between.

    David is an outstanding presenter and happy to share his immense knowledge.

  7. Howard Toi

    Excellent course delivered by David for both students and tunnel professionals to improve their knowledges on tunneling in rock. The course covers fundamentals, some latest development in tunneling, numerical modelling and very useful industry practices. I would highly recommend anyone who is interested in tunneling.

  8. Esteban Litvin

    Great course and better instructor!!! Very practical course covering all aspects from fundamental rock mechanics all the way to tunnel construction methodologies.

  9. Bruno Ferraz

    Indispensable learning for everyone involved in this market, our teacher Dr. David successfully managed to gather in a few hours a large volume of important information that is already making a difference in my day.

    Thank you David and thank you Ingeoexpert for this opportunity.

  10. Ahmet Sefa Ozer

    Excellent course with excellent instructor. Thank you David. I would highly recommend anyone who is interested in.
    Thank you again

  11. Priscila Ferraz

    Amazing course, especially for me, new on this industry. I’ve learned a lot with Dr. David and his support during all course was essential for my learning! Thank you David!

  12. Anna Zuin

    It was a pleasure to take part to the course. I have learned so much from it and it gives me the opportunity to improve my knowledge in tunnelling that, until now, was only academic. I highly recommend it because it deals with practical aspects of excavation.

  13. VALERIO GIORDANO

    I signed up for this online course because I wanted to deepen my knwoledges in tunnelling especially from the practical and designing side.
    There are no many courses which covering this fascinating topic (except the full time Masters with a typical one year duration), and most of them are much theoretical. But this one did not dissappoint my expecations. The lecturer, David, shared with us all his expertise and know how, and this was magnificent because he is a “egnineer on field”, so he could share his direct experience with us as well.
    Practical cases of ground support, technical insights on rock bolting (that for me has been very precious), rock classifications, lining design, tutorials on how to use FEM softwares, etc. have been faced.
    Therefore, this is a really well done course for all those who wants to approach to tunnelling world.

  14. Michele Camin

    Very interesting, useful and pragmatic course. Professor David is very expert and to show it during the video lessons and the webinars. Highly recommend.

  15. Harry Asche

    Excellent and detailed course. I would highly recommend it. The course demonstrates David’s knowledge, patience and generosity.

  16. Jacek Rachocki

    Excellent course delivered by a very passionate and extremely knowledgeable tunnel engineer. Course has been prepared to the highest standard with theory and practice being linked extremely well. I can highly reccomend it to engineers involved in the tunnelling industry.

  17. Thanh Nguyen

    This is a brilliant course thanks to David for his enthusiastic, active and superior leadership. The course is an excellent combination between fundamental background of rock mechanics and practical applications in tunnels. I have transformed myself from zero of rock tunneling to a certain degree of confidence in this field. David has a fabulous knowledge and experience in tunneling, but more importantly, he is very passionate and willing to share with learners through various exercises and discussions. Furthermore, David truly understands how busy we are nowadays, and he has made a great approach to optimize the learning curve.

    Again thanks David for giving and leading this course.

  18. Ramtin Tajeddin

    Highly recommended. David is very knowledgeable, good instructor, well organized and generous in sharing his knowledge.

  19. ALI K E N E T I

    It is a great course concisely summarizing basic design concepts required for tunneling in hard rocks. David is a well-known expert in practical rock engineering, a well resourced teacher who perfectly delivers this course in a friendly atmosphere, and an approachable professional for any questions you might have. I recommend this course particularly to people with rock mechanics background to shape their knowledge and enhance their understanding of different aspects of tunneling. For those with less exposure to geomechanical designs or theories, this course certainly exposes you to wide range of topics you might explore further using the complementary references provided by David.

  20. Gustavo Ranalli

    This is an excellent course, with right balance between theoretical and practical subjects. I have found it very well arranged, with a focus on all those issues that matter at design and construction stage. The lessons are very clear and the support in terms of tools, softwares, and relevant papers is good and useful for the scope. Dr. David Olivera is an excellent teacher and an experienced professional. He is always available, his lessons are interesting, and the regular webinars are a good opportunity for the attendees to go deeper in some topics or to discuss some key issues of the exercises. Highly recommended.

  21. Arya Predana

    Amazing course with exceptional learning materials. Dr. David Oliveira is successfully providing both theory and practical things on site which is important to have deeper understanding on tunneling specifically in rocks. As a postgraduate student who is keen to learn more on tunneling, this course really helps me to explore more on this particular topic. Well done and highly recommended!

  22. Sani Ibric

    The entire course was a wonderful experience, very well structured with valuable learning outcomes for a broad range of engineering audiences. David as a presenter is very dedicated and always able to make complex subject matter easy understandable for everyone involved. His decades of experience as a tunnel designer (both from a design and practical perspective) are well implemented throughout the entire course providing a great learning outcome and a valuable take away for everyone involved. Very well done, thanks David.

  23. Ahsan Tahir

    This course has been great for my learning as it has helped me gain understanding of some of the tunneling concepts for ground support in rock. The format of online lectures and recordings is great as you can rewind and re watch the lectures again if you don’t understand something the first time. Highly recommended!!

  24. Simon Yau

    This training course has exceeded my original expectations where I found it informative and useful. The course (in five modules) was well structured starting from a basic introduction to deeper end of tunnel engineering encompassing both design and construction issues. Thank you David!

  25. Pawel Kozak

    An amazing course where experienced tunnel engineers can refresh their memory or, as was the case in my case, join all the dots, which I thought I understood but not necessarily in the right context. David, who is very passionate about tunneling, covers a wide range of topics related to tunneling in rock and at varying difficulty levels so everyone, from a graduate or a student indeed, to an experienced tunneller will find something for themselves. The live seminars are invaluable as you can ask David your own questions, whether they are related to the written assignments or not. After the course, you will able able to keep David’s presentations with enough information in them to write a tunnel design book.

  26. Adrian Tola

    I recommend the course to all the colleagues that are working on tunnelling or would like to work on tunnelling projects. The structure of the course was perfect and the professor has enough experience to answer all the questions.

  27. Rogerio Aguirre Dias

    “The course was very good, excellent teacher to all professionals working in underground and civil and mining operations”

  28. Petrina Kontrec Sahin

    Excellent course! I recommend it to everyone who wants to get a deep knowledge of rock tunnels. Dr. Oliveira has done a great job organizing this course.

  29. Sirous Agha Amiri

    I’ve really could find this course useful and I am recommending it to engineering geologists, geotechnic and rock mechanic engineers.

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