Analysis of Subsidence Trough in Depth
Linear interpolation between the maximal value of the settlement Smax at a terrain surface and the displacement of roof excavation ua is used to calculate the maximum settlement S at a depth h below the terrain surface in a homogeneous body.
Analysis of subsidence trough at a depth
The width of subsidence trough at an overburden l is provided by:
where: | L | - | length of subsidence trough at terrain surface |
r | - | excavation radius | |
Z | - | depth of the center point | |
z | - | analysis depth |
The values l and S are then used to determine the shape of subsidence trough in the overburden above an excavation.