Construction Practices in Tunnels

Program Description

The course on "Tunnel Construction Practices" provides a comprehensive and interdisciplinary exploration of tunnel engineering. Beginning with an in-depth understanding of tunnel components and the intricacies of the design process, the course covers failure types and emphasizes the critical importance of safety. It delves into various excavation methods, considering geological factors, and explores the types of supports crucial for tunnel stability. The modules further cover design methodologies, instrumentation, monitoring strategies, and the application of tunnel boring machines. Through a holistic approach, learners gain practical insights into the planning, design, and construction of tunnels, ensuring a well-rounded skill set for successful and safe tunnel construction practices

Course Objectives

  • To explore the concepts of Deep excavations and Pre-excavation support systems
  • Discuss the tunnel construction methods and support systems
  • Discuss the various types of TBMS
  • Emphasis and explain the significance and methods of tunnel monitoring

Key Highlights

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Deep excavations.

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Pre Excavation support systems.

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Tunnel construction methodologies.

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TBM machines.

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Tunnel Support Systems.

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Instrumentation and Monitoring in tunnels.

Course enrollment data

Learning Format

Online

Duration

6 Units

Certified by

IITM Pravartak Technologies Foundation
Technology Innovation Hub (TIH) of IIT Madras and
L&T EduTech

Program Fee

₹1900 (inclusive of tax)

Downloads

Program Description

Education Qualification

Students pursuing Diploma/ UG /PG Programs in Civil Engineering

Suggested Prerequisites

Soil Mechanics, Foundation Engineering, Structural Analysis

Teaching Hours

8 hours

Lead Faculty

Dr. G .D Raju Chief Geotechnical Engineering Manager, L&T Construction

Dr. G.D Raju is a Rock & geomechanics Engineer and a former Scientist at “National Institute of Rock Mechanics” . He earned his PhD from McGill University, Canada and has experience in working in projects across India, Canada, Singapore and Bhutan. With extensive experience of over 25 years in the field of Mining, tunneling, oil and natural gas and Civil construction he heads the geotechnical division of Heavy Civil Infrastructure at Larsen and Toubro. He and his team are involved in design of tunnels, caverns, Foundation of bridges and geotechnical aspects of nuclear reactor projects.

Learning Schedule

General Description of Various Tunnels and other underground structures, Introduction to caverns and their uses, Introduction to shafts and their applications, Stress aound an underground opening, Introduction to Site Investigation, Surface investigation, Subsurface investigation-, In situ testings – Soil, Insitu testings – Rock, Sampling Techniques, Lab testing methods- Soil -I Lab testing methods- Rock

Rock mass classification, Methods of excavation, Introduction to Pre excavation support systems ,Purpose of Pre excavation support systems ,Ground Freezing method ,Umbrella arch method ,Face grouting ,Pre grouting ,Types of Pre grouting

Introduction and different types of retaining structure ,Applicability of Temporary & permanent retaining Structures, Contiguous pile an overview and their Applicable areas ,Secant pile an overview and their Applicable areas, Soldier pile an overview and their Applicable areas, Sheet pile an overview and their Applicable areas, D-wall an overview and their Applicable areas

Analysis Techniques, Visualisation Techniques, Case study on Monitor and Control Schedule, Cost, Resources, Quality and risks

A brief history of mechanized tunnelling, Types of TBM, Essential components of TBM,Selection of TBMs,Stages of TBM construction, Different project details related to TBM,Design in TBM Tunnels,Numerical modelling and analysis of TBM tunnel,Design checks,Construction impact assessments, Problems and its mitigation in TBM tunnellingA brief history of mechanized tunnelling, Types of TBM, Essential components of TBM,Selection of TBMs,Stages of TBM construction, Different project details related to TBM,Design in TBM Tunnels,Numerical modelling and analysis of TBM tunnel,Design checks,Construction impact assessments, Problems and its mitigation in TBM tunnelling

Introduction and purpose of instrumentation and monitoring, Instrumentation and monitoring planning, Typical geotechnical measuring systems for underground tunnels ,Typical geotechnical measuring systems for underground tunnels ,Loads and stresses in support system and water pressure monitoring, Project case study , Trigger limits and monitoring plan



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