METHOD FOR CASCADE DEHYDRATION OF LANDSLIP BODY OF SLOPES OR WALLS Russian patent published in 2016 - IPC E21C41/26 E02D17/20 

FIELD: construction; mining.

SUBSTANCE: invention can be used for reinforcement of mine slopes or walls exposed to ground waters. Method for cascade dehydration of a landslip body of slopes or walls comprises geological and hydrogeological survey for detecting landsliding bodies, then performing biolocation survey, results of which are used to determine underground water courses and their characteristics to determine number and location of through filters, further, slopes or pit walls are divided into stages or ledges along vertical line depending on presence of a landslip body, further, from foot of each cascade or ledge extending horizontal gallery with an inclination i = 0.005 beyond landslip body, then from it in both opposite sides extending perpendicular tunnels also with inclination i = 0.005 towards water flow, then from surface of each cascade or ledge, wells under filters, water monitoring wells and vent wells are drilled, wherein vent wells and wells under filters are drilled to interface with tunnels and water monitoring wells are drilled outside tunnels, horizontal tunnels are connected with water bypass pipeline laid on surface of mountain slope or pit wall from top to bottom cascade or ledge, wherein outside body of a landslip, trenches or sumps are made for collection of water drain pipe connected to water bypass pipeline.

EFFECT: reliable prevention of formation of landslides by cascade discharge of surface and underground water from landslip body of slopes or walls.

3 cl, 2 dwg