Tunnel Engineering Insights
Discover the definition, advantages, disadvantages, classification, shapes, surveying, and construction aspects of tunnel engineering. Explore the necessity, benefits, and challenges of underground passages for various purposes, such as transportation and conveyance of resources. Gain insights into different types of tunnels and their features.
Download Presentation
Please find below an Image/Link to download the presentation.
The content on the website is provided AS IS for your information and personal use only. It may not be sold, licensed, or shared on other websites without obtaining consent from the author. If you encounter any issues during the download, it is possible that the publisher has removed the file from their server.
You are allowed to download the files provided on this website for personal or commercial use, subject to the condition that they are used lawfully. All files are the property of their respective owners.
The content on the website is provided AS IS for your information and personal use only. It may not be sold, licensed, or shared on other websites without obtaining consent from the author.
E N D
Presentation Transcript
Definition & necessity Underground passage which are constructed without disturbing the ground surface route to be connected by shorter distance Conveying water for power generation To avoid acquisition of valuble land Protection againt landslide, snow fall Coneveying water,oil,gas
Advantages The connect terminal station by short route Less route length result in less transportation cost They carry railway, road and water, oil, gas Avoiding holding up of traffic for long time To avoid acquisition of valuble land Protection againt landslide, snow fall
Disadvantages Require skilled labour & supervision Require Special equipment Costly in construction Require more time May cause suffocation if ventilation not provided properly
Classification According to purpose i) Traffic tunnel 1. Railway 2. Highway 3. Navigation 4. Subway 5. Pedestrain ii)Conveyance tunnel 1. Water supply 2. Hydropower 3. Sewage 4. Tunnel for industrial use According to type of material 1. In hard rock 2. In soft rock 3. In quick sand 4. Uder river bed According to position of alignment 1. Base tunnel 2. Spiral tunnel 3. Slope
Shape tunnel Shape Rectangular tunnel Segmental Circular Horse shoe Egg shape Elliptical
Tunnel surveying Involve the following operation 1. Location center line on the ground 2. Construction of shaft over center line 3. Transferring the center line inside the tunnel
Shaft When the length of tunnel is small, it can be constructed by excavation The vertical opening along the alignment
