How This Calculator Works
This tool estimates fuel or energy consumption, cost, and CO₂ emissions for tunnel boring machines (TBMs) based on operating hours and fuel type.
Fuel Calculation Formula:
Fuel/Energy Used = Operating Hours × Consumption Rate (liters or kWh per hour)
CO₂ Emissions = Fuel/Energy Used × Emission Factor
Emission Factors:
- Diesel: 2.68 kg CO₂/liter
- Electric: 0 kg CO₂/kWh (assuming renewable energy source)
About Tunnel Boring Machines
Tunnel Boring Machines (TBMs) are powerful construction equipment used to excavate tunnels through soil and rock with minimal disturbance. They are widely used in metro, road, and waterway tunneling projects.
- Small TBM 400 HP: Suitable for small-scale tunneling and urban infrastructure projects.
- Medium TBM 800 HP: Commonly used in metro tunnels and medium-depth projects.
- Large TBM 1200 HP: Designed for large-scale underground infrastructure such as highways and rail tunnels.
- Electric TBM: Energy-efficient, low-emission alternative ideal for modern sustainable tunneling projects.
Fuel-Saving Tips:
- Optimize machine operating cycles to reduce unnecessary fuel consumption.
- Maintain cutting heads and hydraulic systems for higher efficiency.
- Use electric TBMs where feasible to minimize emissions.
- Schedule tunneling operations to avoid long idle periods.
