The invention relates to a device (1) for producing a hollow-cylindrical concrete lining (50) on shaft walls (100) of vertical shafts (101), having at least one shuttering element (2) which is radially spaced from the shaft wall (100) and forms a concrete shuttering, a supporting ring (3) at the lower end of the shuttering element (2), and a sealing assembly (4) in the region of the supporting ring (3) to seal the concrete shuttering relative to the shaft wall (100), wherein the sealing assembly (4) is formed by a plurality of drawers (5, 5a, 5b) which can be extended radially against the shaft wall (100).

The invention relates to a device (1) for producing a hollow-cylindrical concrete lining (50) on shaft walls (100) of vertical shafts (101), having at least one shuttering element (2) which is radially spaced from the shaft wall (100) and forms a concrete shuttering, a supporting ring (3) at the lower end of the shuttering element (2), and a sealing assembly (4) in the region of the supporting ring (3) to seal the concrete shuttering relative to the shaft wall (100), wherein the sealing assembly (4) is formed by a plurality of drawers (5, 5a, 5b) which can be extended radially against the shaft wall (100).

An anti-seismic support method for a mine shaft includes: providing a circular support groove in a liquefaction-prone layer of the mine shaft; providing horizontal support holes in a groove wall, and fixing an outer support spring steel cylinder against the groove wall; drilling vertical support holes at a groove bottom, anchoring a vertical anchor rod group into the vertical support holes, and injecting an expansion anchoring slurry into the vertical anchor rod group; making a lower positioning support ring abut against an upper end of the vertical anchor rod group and an inner wall of the outer support spring steel cylinder; fixing an anti-seismic connecting rod group between lower and upper positioning support rings; making an outer wall of an inner support spring steel cylinder abut against the upper and lower positioning support rings; and providing an upper support cover seat atop the outer and inner support spring steel cylinders.

An anti-seismic support method for a mine shaft includes: providing a circular support groove in a liquefaction-prone layer of the mine shaft; providing horizontal support holes in a groove wall, and fixing an outer support spring steel cylinder against the groove wall; drilling vertical support holes at a groove bottom, anchoring a vertical anchor rod group into the vertical support holes, and injecting an expansion anchoring slurry into the vertical anchor rod group; making a lower positioning support ring abut against an upper end of the vertical anchor rod group and an inner wall of the outer support spring steel cylinder; fixing an anti-seismic connecting rod group between lower and upper positioning support rings; making an outer wall of an inner support spring steel cylinder abut against the upper and lower positioning support rings; and providing an upper support cover seat atop the outer and inner support spring steel cylinders.

An anti-seismic support method for a mine shaft includes: providing a circular support groove in a liquefaction-prone layer of the mine shaft; providing horizontal support holes in a groove wall, and fixing an outer support spring steel cylinder against the groove wall; drilling vertical support holes at a groove bottom, anchoring a vertical anchor rod group into the vertical support holes, and injecting an expansion anchoring slurry into the vertical anchor rod group; making a lower positioning support ring abut against an upper end of the vertical anchor rod group and an inner wall of the outer support spring steel cylinder; fixing an anti-seismic connecting rod group between lower and upper positioning support rings; making an outer wall of an inner support spring steel cylinder abut against the upper and lower positioning support rings; and providing an upper support cover seat atop the outer and inner support spring steel cylinders.

An anti-seismic support method for a mine shaft includes: providing a circular support groove in a liquefaction-prone layer of the mine shaft; providing horizontal support holes in a groove wall, and fixing an outer support spring steel cylinder against the groove wall; drilling vertical support holes at a groove bottom, anchoring a vertical anchor rod group into the vertical support holes, and injecting an expansion anchoring slurry into the vertical anchor rod group; making a lower positioning support ring abut against an upper end of the vertical anchor rod group and an inner wall of the outer support spring steel cylinder; fixing an anti-seismic connecting rod group between lower and upper positioning support rings; making an outer wall of an inner support spring steel cylinder abut against the upper and lower positioning support rings; and providing an upper support cover seat atop the outer and inner support spring steel cylinders.

The invention relates to a device (1) for producing a hollow-cylindrical concrete lining (50) on shaft walls (100) of vertical shafts (101), having at least one shuttering element (2) which is radially spaced from the shaft wall (100) and forms a concrete shuttering, a supporting ring (3) at the lower end of the shuttering element (2), and a sealing assembly (4) in the region of the supporting ring (3) to seal the concrete shuttering relative to the shaft wall (100), wherein the sealing assembly (4) is formed by a plurality of drawers (5, 5a, 5b) which can be extended radially against the shaft wall (100).

The invention relates to a device (1) for producing a hollow-cylindrical concrete lining (50) on shaft walls (100) of vertical shafts (101), having at least one shuttering element (2) which is radially spaced from the shaft wall (100) and forms a concrete shuttering, a supporting ring (3) at the lower end of the shuttering element (2), and a sealing assembly (4) in the region of the supporting ring (3) to seal the concrete shuttering relative to the shaft wall (100), wherein the sealing assembly (4) is formed by a plurality of drawers (5, 5a, 5b) which can be extended radially against the shaft wall (100).

An underground support system having an underground reinforcement system that is at least partially encapsulated with concrete or a cement material. The underground reinforcement system includes a flexible wire mesh having a matrix of longitudinally and transversely extending metal wires. The matrix of longitudinally and transversely extending metal wires has at least one three-dimensional sheet, each sheet having at least one raised corrugation, positioned along the length of an underground space. The raised corrugation acts as a template depth girder for application of concrete or cement material at a defined depth such that the underground reinforcement system is at least partially encapsulated with the concrete or cement material.

An underground support system having an underground reinforcement system that is at least partially encapsulated with concrete or a cement material. The underground reinforcement system includes a flexible wire mesh having a matrix of longitudinally and transversely extending metal wires. The matrix of longitudinally and transversely extending metal wires has at least one three-dimensional sheet, each sheet having at least one raised corrugation, positioned along the length of an underground space. The raised corrugation acts as a template depth girder for application of concrete or cement material at a defined depth such that the underground reinforcement system is at least partially encapsulated with the concrete or cement material.