Title
Prediction of Displacements in Tunnelling: Extension of Closed Form Solutions for Estimation of Longitudinal Displacement Profil,Used
Delivery time: 8-12 business days (International)
When dealing with tunnels in difficult ground conditions, the ability to correctly predict the development of displacements, their magnitude and spatial orientation is of tremendous importance for a save and economical tunnel design. One of the major shortcomings of 2D approaches for underground excavation design is the (mostly) inadequate modelling of the effects of the face advance. Although they may roughly estimate the evolution of the displacements towards their final value, none of the 2D solutions provide information about the prerelaxation the ground has undergone. The method presented in this book represents an easytoimplement tool allowing fast assessment of displacement development for a circular cavity in a MohrCoulomb material under hydrostatic loading. A numerical parametric study on a 3D model has been performed. Based on the displacement data the respective fictitious support pressures have been backcalculated, using a closedform solution, thus allowing the establishment of three interpolation relationships. The knowledge of the shape parameters for an arbitrary set of mechanical parameters allows the calculation of the displacement path.
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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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