Deep Tunnels & Underground Drainage Systems
Deep Tunnels & Underground Drainage Systems
Course Objectives:
- Understand the role of deep tunnels and underground drainage systems in urban flood control and wastewater management.
- Master geotechnical and structural design principles for deep tunnel construction.
- Learn advanced tunneling techniques, including Tunnel Boring Machine (TBM) and microtunneling.
- Optimize hydraulic performance and maintenance strategies for underground drainage networks.
- Implement smart monitoring and control systems for deep tunnel operations.
Course Outline (5 Days):
Day 1: Introduction to Deep Tunnels & Underground Drainage Systems
- Importance of deep tunnels in urban drainage and flood control.
- Types of underground drainage systems: gravity tunnels, pressurized tunnels, and combined sewer tunnels.
- Geotechnical considerations: soil and rock mechanics for deep tunneling.
- Key design parameters: tunnel diameter, depth, slope, and hydraulic capacity.
- Case studies of major deep tunnel drainage projects worldwide (e.g., Chicago Deep Tunnel, Kuala Lumpur SMART Tunnel).
Day 2: Tunnel Design & Construction Techniques
- Structural considerations: concrete lining, segmental rings, and tunnel support systems.
- Tunneling methods:
- Tunnel Boring Machine (TBM) applications in deep drainage.
- Microtunneling and pipe jacking for small-diameter tunnels.
- Drill-and-blast method for rock tunnels.
- Groundwater control and dewatering techniques during construction.
- Seismic and climate resilience considerations in deep tunnel design.
- Safety protocols and risk management in tunnel construction.
Day 3: Hydraulics & Flow Management in Deep Drainage Systems
- Hydraulic principles of underground drainage tunnels.
- Flow control structures: drop shafts, surge chambers, and energy dissipation systems.
- Combined sewer overflow (CSO) management in deep tunnel systems.
- Modeling tunnel flow using hydraulic software (e.g., HEC-RAS, MIKE URBAN, SWMM).
- Maintenance challenges: sediment buildup, clogging, and inspection techniques.
Day 4: Smart Monitoring, Maintenance & Asset Management
- Real-time monitoring of deep tunnels using IoT sensors and SCADA systems.
- AI-based predictive maintenance for tunnel drainage infrastructure.
- Inspection technologies: robotic crawlers, drones, and LiDAR scanning.
- Emergency response planning for tunnel flooding and blockages.
- Regulatory compliance and environmental impact assessment.
Day 5: Case Study – Design & Operation of a Mega Deep Tunnel System
- Scenario: Designing a deep tunnel drainage system for a flood-prone metropolis.
- Data Analysis: Evaluating hydrological data, urban runoff, and population growth projections.
- Solution Development: Selecting tunnel diameter, depth, and flow control systems.
- Simulation & Modeling: Running hydraulic simulations for peak flow scenarios.
Discussion: Reviewing financial feasibility, operational challenges, and long-term sustainability