Title
Numerical Modelling for NATM in Soft Ground,Used
Delivery time: 8-12 business days (International)
The use of numerical methods to analyse tunnels; particularly groundlining interaction and surface and subsurface settlement have been escalated due to rapid development of computer technology. Two and three dimensional Finite Element Analysis (FEA) often predicts the general consequences and the potential dangers for the tunnelling process without using any macro analysis techniques such as trial tunnels. However, any prediction from numerical analysis is highly dependent on the model adopted for modelling the soil/rock behaviour. This book focuses on application of 2D and 3D FEA for modelling of a specific tunneling method; New Austrian Tunneling Method (NATM). Hypothetical Modulus of Elasticity (HME) soft lining approach was used to consider deformations prior to lining installation in 2D FEA and a practical method to estimate HME is proposed for different face advance sequences. In order to validate the FEA,field data from the Heathrow Trial Tunnel excavated in London Clay were used in the analysis.
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Shipping & Returns
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We ship your order within 2–3 business days for USA deliveries and 5–8 business days for international shipments. Once your package has been dispatched from our warehouse, you'll receive an email confirmation with a tracking number, allowing you to track the status of your delivery.
Returns
To facilitate a smooth return process, a Return Authorization (RA) Number is required for all returns. Returns without a valid RA number will be declined and may incur additional fees. You can request an RA number within 15 days of the original delivery date. For more details, please refer to our Return & Refund Policy page.
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Warranty
We provide a 2-year limited warranty, from the date of purchase for all our products.
If you believe you have received a defective product, or are experiencing any problems with your product, please contact us.
This warranty strictly does not cover damages that arose from negligence, misuse, wear and tear, or not in accordance with product instructions (dropping the product, etc.).
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Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.
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