A method of lining a pipe with a lining mixture formed from a dry component and a liquid is discussed. The method includes placing the dry component in a dry component surface container located above ground, conveying the dry component from the dry component surface container to a dry component subterranean supply container located underground, conveying the dry component from the dry component subterranean supply container to a mixer located underground, mixing the dry component with the liquid to form the lining mixture, and applying the lining mixture to the pipe with a mixture applicator.

A method of lining a pipe with a lining mixture formed from a dry component and a liquid is discussed. The method includes placing the dry component in a dry component surface container located above ground, conveying the dry component from the dry component surface container to a dry component subterranean supply container located underground, conveying the dry component from the dry component subterranean supply container to a mixer located underground, mixing the dry component with the liquid to form the lining mixture, and applying the lining mixture to the pipe with a mixture applicator.

An infrared ray radiated from a region of a surface of an object to which a coating film (20) of a coating material is provided is detected by an infrared sensor (42). The coating film (20) includes a porous ceramic particle (22) and a binder (24), and the ceramic particle (22) includes a compound represented by a compositional formula of any of A.sub.aR.sub.bAl.sub.cO.sub.4, A.sub.aR.sub.bGa.sub.cO.sub.4, R.sub.x, Al.sub.yO.sub.12, and R.sub.xGa.sub.yO.sub.12. Here, A is one or more elements selected from a group consisting of Ca, Sr, and Ba, and R is one or more elements selected from a group consisting of rare earth elements. Also, a is equal to or greater than 0.9 and equal to or less than 1.1, b is equal to or greater than 0.9 and equal to or less than 1.1, c is equal to or greater than 0.9 and equal to or less than 1.1, x is equal to or greater than 2.9 and equal to or less than 3.1, and y is equal to or greater than 4.9 and equal to or less than 5.1. A porosity of the ceramic particle (22) is equal to or greater than 20% and equal to or less than 40%.

An asymmetric coordinated support device for gob side entry is provided. The device includes an inner support board, an outer roadway side support assembly, an outer roof support assembly, and a flexible reinforcement layer, wherein the inner support board is supported to an innermost side closest to a rock layer to be supported in an extending direction of the roadway, and wherein a side of the inner support board remote from the rock layer is provided with the outer roadway side support assembly extending along the roadway direction and the outer roof support assembly located on a roof of the outer roadway side support assembly.

The present invention disclose a tunnel wall element comprising a lightweight body element coated with a fire resistant coating providing increased mechanical integrity of the tunnel wall element. The present invention is also related to a method of building road and railway tunnels with the lightweight coated tunnel element.

A polymer mesh for skin control in hard rock mining conditions is provided. The polymer mesh is manufactured using a knitted or woven design that further includes one or more pairs of solid cut-resistant bands. The bands are positioned in pairs, each band in a pair having a width of at least about 2.5 and being generally parallel with the other band. The bands are spaced from one another at a distance of between about 1.5 and about 4 to create a reinforced aperture between the bands. One or more reinforcement bolts are installed within the aperture with the bands on opposing sides of each bolt buffering the edges of the steel plates associated with the bolts to prevent the plates from tearing the polymer mesh.

A panel system for the containment of landslides caused by partial collapses and also by rock breakdowns, for use in the fortification of mining tunnels, hillsides and roads, together with anchor bolts and plates, comprising a network constituted by straps of metal or other material resistant to traction or with the capacity of tearing along the strap (1) (2) (3), with each node of this network firmly linked with a buckle (6) (7) (8) (16) and with a frame (20) attached to this network, where the frame comprises flat tendons (17) near the perimeter of the panel, linked to plates with lugs (D11) or with flat connectors (12) (13) (14) (15) which go beneath the normal plates.

A rock bolt and meshing assembly is arranged for installation of a meshing sheet against a surface of rock strata. The rock bolt includes an adapter having a first portion connectable to a trailing end of an elongate shaft of the rock bolt and means configured to receive and mount a meshing clamp to overlay a second section of meshing sheet against an already laid first section of meshing sheet.

A method of lining a pipe with a lining mixture formed from a dry component and a liquid is discussed. The method includes placing the dry component in a dry component surface container located above ground, conveying the dry component from the dry component surface container to a dry component subterranean supply container located underground, conveying the dry component from the dry component subterranean supply container to a mixer located underground, mixing the dry component with the liquid to form the lining mixture, and applying the lining mixture to the pipe with a mixture applicator.

The present invention disclose a tunnel profile element (10, 20A, 20) comprising a lightweight body constituted by foam glass panels sprayed with unbroken polyurea layer providing a fire resistant coating, and which is providing increased mechanical integrity of the tunnel profile element (10, 20A, 20).