First, the bolt support
At present, there are many applications of wedge-and-slit, tube-and-tube anchors that are easy to apply.
The ore roof to the horizontal layering method, when using metal bolting, after falling ore, these metal rods from the mixed explosive buried ore heap, need further root pick addition, the impact ore stingy operation. Daye Nonferrous Metals Company recorded a steel mountain copper mine, has conducted technology trials anchor explosive combination of good test results. The so-called anchor-explosion combination is to install explosives in the cavity of the pipe-drilled drill pipe, and to crush the pipe-slot anchors during the mining to facilitate the mining operation. Drilling can be used to install anchors. The rod can be used for charging during blasting, and the two operations are combined.
Second, a metal mesh supporting a metal mesh screen may be used a commercially available lead of various diameters prepared from a lead wire machine, the extent of fragmentation depends on the mesh size of the ore rock roof may be, typically 20 * 20,50 * 50,100 * 100mm , mining may also be suitable bar diameter self-welded.
The metal mesh is usually fixed on the surface of the reinforced rock by anchor bolts to form a bolt metal mesh joint roof. The bolts are preferably slotted, riser, and wedge-stitched because they are quick to install and can be loaded immediately. For example, spraying concrete on a metal mesh to form a spray anchor with the same support has better effect, but it is rarely used in stope support, and plain spray concrete is often used.
The bottom column is taken back by the lower middle section. Combined with stope guard short length anchor bolt and a top plan, i.e. before stoping preinstalled long cable in the Ready courtyard in the center of each of the stope, the top of the slate layer is preconsolidated, recovery time with the working face propulsion, followed face to install a tubular metal wedge anchor stem, and according to the design of the network encryption mortar anchor, in case of faults and joints fractured rock crushing area, adding the appropriate long cable, or leaving in small pillars maintenance roof.
At present, there are many applications of wedge-and-slit, tube-and-tube anchors that are easy to apply.
The ore roof to the horizontal layering method, when using metal bolting, after falling ore, these metal rods from the mixed explosive buried ore heap, need further root pick addition, the impact ore stingy operation. Daye Nonferrous Metals Company recorded a steel mountain copper mine, has conducted technology trials anchor explosive combination of good test results. The so-called anchor-explosion combination is to install explosives in the cavity of the pipe-drilled drill pipe, and to crush the pipe-slot anchors during the mining to facilitate the mining operation. Drilling can be used to install anchors. The rod can be used for charging during blasting, and the two operations are combined.
Second, a metal mesh supporting a metal mesh screen may be used a commercially available lead of various diameters prepared from a lead wire machine, the extent of fragmentation depends on the mesh size of the ore rock roof may be, typically 20 * 20,50 * 50,100 * 100mm , mining may also be suitable bar diameter self-welded.
The metal mesh is usually fixed on the surface of the reinforced rock by anchor bolts to form a bolt metal mesh joint roof. The bolts are preferably slotted, riser, and wedge-stitched because they are quick to install and can be loaded immediately. For example, spraying concrete on a metal mesh to form a spray anchor with the same support has better effect, but it is rarely used in stope support, and plain spray concrete is often used.
The bottom column is taken back by the lower middle section. Combined with stope guard short length anchor bolt and a top plan, i.e. before stoping preinstalled long cable in the Ready courtyard in the center of each of the stope, the top of the slate layer is preconsolidated, recovery time with the working face propulsion, followed face to install a tubular metal wedge anchor stem, and according to the design of the network encryption mortar anchor, in case of faults and joints fractured rock crushing area, adding the appropriate long cable, or leaving in small pillars maintenance roof.
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