摘要:
A liner plate structure, system and method is provided for lining of mine shaft bores, tunnels and the like. The liner plate structure includes a primary plate portion and at least one flange disposed at a side edge of the primary plate portion. A polymer seal element extends along a recess within an exterior surface of the flange.
摘要:
In various embodiments, lined underground reservoirs and/or insulated pipeline vessels are utilized for storage of compressed fluid in conjunction with energy storage and recovery systems.
摘要:
Methods, apparatus and systems including a computer comprising at least one hardware processor, at least one tangible storage medium (memory), and at least one input/output (I/O) interface for evaluating a quality of a locate and/or marking operation. First information relating to the locate and/or marking operation is compared to second information relating to one or more environmental landmarks. One or more indications of a quality assessment of the locate and/or marking operation is automatically generated based on such a comparison, and the one or more indications of the quality assessment are electronically stored on the at least one tangible storage medium, and/or electronically transmitted via the at least one I/O interface, so as to provide an electronic record of the quality assessment.
摘要:
A method of designing supports for an underground mine opening comprising the steps of: receiving mine slope information including at least one of site location, entry length, entry grade, entry orientation, size of opening, surface topology, adjacent borehole data and rock mechanics test data, historical roof fall height, and expected steel set support capacity; conducting stress and geological condition evaluation of the mine opening using a finite element computer modeling program based on the mine opening information; and designing structural supports for the mine opening utilizing the stress and geological condition evaluation of the mine opening.
摘要:
An apparatus for assembling a liner from a plurality of longitudinal sections of flexible material having longitudinal edges adapted to be joined one to another to form the liner includes a path means along which the longitudinal sections of flexible material can be conveyed in a laterally reduced condition, an assembly zone at which the longitudinal edges can be joined together to form the liner, and a guide structure about which the flexible material can turn upon exiting from the path means to provide an inner section and an outer section turned back with respect to the inner section. The guide structure presents a guide, surface over which the longitudinal sections of flexible material can pass, the surface being configured to facilitate spreading of each longitudinal section from the laterally reduced condition.
摘要:
A method comprises providing a liner to at least a portion of at least one surface, the liner comprising the product of reaction of (a) at least one polymer selected from the group consisting of polyurethanes, polyureas, polythiocarbamates, and combinations thereof; and (b) at least one polymerizable reactive diluent; wherein the surface comprises at least one inorganic mineral other than a metal or a glass, with the proviso that the surface is a surface other than a trafficable surface.
摘要:
A method of, and apparatus for, lining the interior surface (13) of a passageway (15) such as a pipeline, involving progressive installation of a liner (11) on the interior surface (13) of the passageway (15) or on a substrate applied to the interior surface of the passageway by adhesively bonding the liner (11) in position. The liner (11) is bonded to the inner surface (13) of the passageway (15), or onto a substrate applied to the inner surface of the passageway, using a substance which hardens and which together with the liner (11) forms a rigid structure. The apparatus (10) includes a body (23) adapted to be moved along the passageway (15) to progressively install the liner (11). The body (23) also applies the adhesive for the bonding process.
摘要:
The present invention is directed, inter alia, to devices and methods for excavating valuable materials, particularly soft ores such as oil sands, oil shales, and the like, that use one or more of a number of features, including backfilling for ground support, a small trailing access tunnel, processing of the valuable material in the excavation with the tailings optionally being used as backfill and the valuable material being transported to the surface, a plurality of movable shields for ground support, and/or a movable tail shield to provide interim support to the backfill while additional liner sections are installed and/or formed.
摘要:
A reusable mine and underground roof, floor and rib support system including a horizontal chamber or entry and a tail assembly. The horizontal chamber is composed of individual pieces assembled to form sections of the horizontal chamber which can easily be disassembled and reused. The tail assembly is an individual and separate unit located at the end of the horizontal chamber adapted to accommodate dismantling the horizontal chamber sections using jack and cable winch systems. The combination of horizontal chamber and tail provides a underground entry that will allow roof collapse, floor heave and rib failure and remain usable.
摘要:
In a process and a winding device for lining elongated spaces such as tunnels or ducts of circular and non-circular cross-sections, especially for canal and tunnel construction band is employed. Tubes with various diameters and different cross-sections, but mainly with circular and egg-shaped cross-sections, may be created from the band by the winding device.