Tunset
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Associated Products

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Tunset

Tunset predicts the ground movements induced by:

  • tunnels
  • mines
  • embedded wall excavations

Tunset analyses ground movements in terms of three-dimensional displacements and horizontal strains. It allows subsequent building damage assessments to be carried out from the calculated displacements.

Tunnels and Mines

Tunnels are taken as cylindrical excavations in soil. Several methods of solution are available to define the profile of the settlement curves. The equations used are based on the normal probability (Gaussian) distribution theory. The user is required to define the estimated volume loss above the tunnel due to deformation. Tunset will then use this to define the settlement profile at the surface or specified depth.

Mines are taken as excavations of rectangular cross-section in rock. Only one method of solution is available. The equations used are based on an influence function/zone area approach to subsidence and horizontal displacement prediction. Stochastic influence functions are used.

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Embedded Wall Excavations

Embedded wall excavations are described in plan as polygons with a level at each corner. Each is assigned horizontal and vertical surface movement curves that are used to calculate soil displacements. Settlements and horizontal ground displacements may be calculated for the construction of retaining walls and for excavation in front of the retaining walls to form restrained cuts or basements.

Total displacements are calculated by summing those that result from each tunnel and embedded wall excavation.

Building Damage Assessment

Building Damage Assessment is calculated using the Burland (1997) assessment method. Buildings are specified by their locations and bending properties and associated with lines of displacement points and a set of damage category tensile strains that define the thresholds of each damage category.

Program Features

  • single or dual layered soils
  • inclined or horizontal soil interfaces
  • surface or sub-surface results
  • excavations with inclined bases
  • multiple mines, or multiple excavations, tunnels and buildings
  • plan views of results' contours and vectors
  • line graphs of settlements and horizontal displacements
  • assessment of building damage resulting from soil movements
  • building damage interaction charts
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You can purchase Tunset as part of a Geotechnical software bundle. To view the bundles go to our online store for more details.