Seepage Grouting Mechanism for Foundations in Goaf Sites considering Diffusion Paths

Figure 11

Schematic diagram of formation lithology in goaf. Note: (1) the loose deposit of the Quaternary; (2) Permian sand shale; (3) mudstone; (4) Carboniferous limestone; (5) clay rock; (6) bauxite; (7) Ordovician limestone.