Mine Subsidence Analysis and Remediation
GeoStructures’ site investigations and risk assessments of mines begin with research of historic mine maps, followed by a program of deep test borings, geologic mapping, and delineating subsurface openings through geophysical techniques. Our subsurface investigations assign risk-levels based on controlling parameters such as the ratio of overburden to void height. An added comfort level can be gained by using the finite element method (FEM) to model underground stresses and deformations due to surface loads and site-specific subsurface factors.
For stabilizing ground above old mines, compaction grouting is used. Low slump concrete mixes are initially injected as a barrier before using less expensive, high-slump/low-strength cement and fly ash. The grout fills mine openings in the area of the collapse and also builds columns from the floor of the mine to the ground surface.
For inquiries related to Mine Subsidence Analysis and Remediation, please contact Eric Seksinsky (firstname.lastname@example.org).
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