CN202381110U - Long anchor rod pre-supporting device applied in unstable stope roof - Google Patents
Long anchor rod pre-supporting device applied in unstable stope roof Download PDFInfo
- Publication number
- CN202381110U CN202381110U CN201120416413XU CN201120416413U CN202381110U CN 202381110 U CN202381110 U CN 202381110U CN 201120416413X U CN201120416413X U CN 201120416413XU CN 201120416413 U CN201120416413 U CN 201120416413U CN 202381110 U CN202381110 U CN 202381110U
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- hole
- diameter
- long anchor
- anchor rod
- supporting device
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Abstract
The utility model discloses a long anchor rod pre-supporting device applied in an unstable stope roof, which is used for pre-supporting of the stope roof, the broken hanging wall of the ore body and local crushed zone of roadway of an underground mine. The long anchor rod pre-supporting device is characterized by consisting of a deformed steel bar (3), a binding rope (4), a vent hole (5), a gas-guide pipe (6), a wood stopper for plugging holes (7) and a grouting pipe (8). The deformed steel bar is 16 to 20mm in diameter and 12 to 25mm in length; the gas-guide pipe is 10mm in diameter; the wood stopper for plugging holes is made of solid wood, and the upper cross section and the lower cross section are round platforms which are 60mm and 80mm in diameter and are both 17.5mm in dip length; a grouting hole (9), a deformed steel bar hole (10) and a gas-guide pipe hole (11) are drilled in the wood stopper for plugging holes and are 25mm, 20mm and 10mm in diameter respectively; the grouting pipe is 25mm in diameter. The long anchor rod pre-supporting device is simple in structure, safe and convenient in operation and reliable in performance.
Description
Technical field
The utility model belongs to sub-terrain mines mountain region pressure-controlled and roadway support technical field, especially a kind ofly is applicable to that the long anchor pole in the stope top board built on the sand pays protection unit in advance to what the local zone of fracture in dish and tunnel in stope top board, the ore body fragmentation in the underground mining carried out supporting.
Background technology
On the in-vein preparatory work in the mine of horizontal cut and fill stoping exploitation; Owing to be exposed under the stope top board for a long time; Adopt the supporting measure supporting roof again after the intact filling of each slicing, being difficult to provides sufficient supporting or reinforcing to rock mass after the stope excavation at once; In sublevel open stope method exploitation, on coil paying in advance of the plane of disruption and protect also extremely important.If possess suitable condition, before excavation, take reinforcement measure in advance, let rock mass according to the distortion of a kind of controlled way and utilized self intensity of rock mass, suppress rock plane of weakness and " triangle " rock contingent loosening be very effective supporting measure.Therefore, be necessary existing mine support device is improved, develop and a kind ofly be applicable to that the long anchor pole in the stope top board built on the sand pays protection unit in advance, the stability of enhancing rock mass.
Summary of the invention
The utility model technical problem to be solved provides and a kind ofly is applicable to that the long anchor pole in the stope top board built on the sand pays protection unit in advance; Let rock mass according to the distortion of a kind of controlled way and utilized self intensity of rock mass, it is contingent loosening to suppress rock plane of weakness and " triangle " rock.
In order to solve the problems of the technologies described above; The utility model provides a kind ofly is applicable to that the long anchor pole in the stope top board built on the sand pays protection unit in advance; Be made up of screw-thread steel, binding rope, venthole, wireway, plug-hole stopper, Grouting Pipe six parts, the screw-thread steel diameter is 16 ~ 20mm, and length is 12 ~ 25m; The wireway diameter is 10mm; The plug-hole stopper is processed up and down by solid wood, and cross section diameter is 60mm, 80mm; The round platform of oblique long 17.5mm, 3 diameters of Drilling are respectively injected hole, screw-thread steel hole, the air guide pore of 25mm, 20mm, 10mm in the plug-hole stopper, and the Grouting Pipe diameter is 25mm.Use a kind of when being applicable to that long anchor pole in the stope top board is built on the sand paid protection unit in advance; Drilling upper centripetal deep hole in the stope top board; With screw-thread steel rust cleaning, oil removing, while 10cm before the screw-thread steel end uses the binding rope to bind the end has sheared the wireway of giving vent to anger and has sent in the construction boring well also along to boring with scissors.Wireway that the aperture is exposed and screw-thread steel insert respectively in screw-thread steel hole in the plug-hole stopper, the air guide pore, and the plug-hole stopper is struck tightly in hell, Grouting Pipe are inserted in the injected hole of plug-hole stopper installation.
The utility model compared with prior art has following advantage: simple in structure, and handling safety, convenience, dependable performance.
Description of drawings
Fig. 1 is the structural representation of the utility model
Fig. 2 is the A-A sectional drawing of plug-hole stopper
Fig. 3 is the B-B sectional drawing of plug-hole stopper
Fig. 4 is the C-C sectional drawing of plug-hole stopper
Among the figure: 1. stope top board, 2. upper centripetal deep hole, 3. screw-thread steel, 4. binding rope, 5. venthole, 6. wireway, 7. plug-hole stopper, 8. Grouting Pipe, 9. injected hole, 10. screw-thread steel hole, 11. air guide pores.
The specific embodiment
Below in conjunction with on accompanying drawing and the Shandong gold group San-Shan-Dao Gold Mine in-vein preparatory work in horizontal cut and fill stoping the specific embodiment the utility model is further specified.
Referring to accompanying drawing 1, Fig. 2, Fig. 3, Fig. 4; When the long anchor pole of installation is paid protection unit in advance; Adopting YGZ-90 rig Drilling hole depth in stope top board (1) is the vertical upper centripetal deep hole (2) of 12m, if special circumstances are arranged, like triangle joint, People's Bank of China's vent (-escape) raise etc.; Dip angle of hole can be done suitable adjustment, and the boring allowable variation is ± 50mm.Under the firm situation of stope top board, boring net degree is 5m * 5m, and general stope net degree is 3m * 3m, and stope smashed to pieces according to the top board actual conditions, also can suitably be encrypted, and staggered plum blossom layout is adopted in the long anchor cable supporting.Before the long anchor pole of medium-length hole Drilling intact installation reduced form is paid protection unit in advance; Measuring technique personnel answer inspection eye position, aperture, hole depth and arrangement form; Ponding, aggregate chips and rock dust answer purge clean in the hole; And carry out record of acceptance, the hole that the does not reach designing requirement processing of will doing over again is until reaching designing requirement.With length is that the diameter of 12.5m is straight screw-thread steel (3) rust cleaning, the oil removing of 16 ~ 20mm, and the diameter that 10cm has sheared venthole (5) with scissors before the end is bound with binding rope (4) in the screw-thread steel end simultaneously is that the wireway (6) of 10mm is sent in the good boring of construction and outside extremely hole.Processing solid wood up and down, cross section diameter is 60mm, 80mm; The plug-hole stopper (7) of the truncated cone-shaped of oblique long 17.5mm, 3 diameters of Drilling are respectively injected hole (9), screw-thread steel hole (10), the air guide pore (11) of 25mm, 20mm, 10mm in the plug-hole stopper.Wireway that the aperture is exposed and screw-thread steel insert respectively in screw-thread steel hole (10) that plug-hole stopper interior diameter is 10mm, 20mm, the air guide pore (11), and the plug-hole stopper is struck tightly in hell.With diameter be the Grouting Pipe (8) of 25mm to insert plug-hole stopper interior diameter be in the injected hole (9) of 25mm, connect that to adopt water/binder ratio behind the slurry filling machine be that 0.45 ~ 0.5 neat slurry carries out slip casting, grout material intensity must not be less than 20MPa.During slip casting, treat that mortar fills with boring, and when excessive, can stop slip casting, installation by stack.After slip casting was accomplished, intensity reached before the requirement, must not arbitrarily knock long anchor pole.
Claims (1)
1. one kind is applicable to that the interior long anchor pole of stope top board is paid protection unit in advance built on the sand; It is characterized in that: form by screw-thread steel (3), binding rope (4), venthole (5), wireway (6), plug-hole stopper (7), Grouting Pipe (8) six parts; The screw-thread steel diameter is 16 ~ 20mm, and length is 12 ~ 25m, and the wireway diameter is 10mm; The plug-hole stopper is processed up and down by solid wood, and cross section diameter is 60mm, 80mm; The round platform of oblique long 17.5mm, 3 diameters of Drilling are respectively injected hole (9), screw-thread steel hole (10), the air guide pore (11) of 25mm, 20mm, 10mm in the plug-hole stopper, and the Grouting Pipe diameter is 25mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120416413XU CN202381110U (en) | 2011-10-27 | 2011-10-27 | Long anchor rod pre-supporting device applied in unstable stope roof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120416413XU CN202381110U (en) | 2011-10-27 | 2011-10-27 | Long anchor rod pre-supporting device applied in unstable stope roof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202381110U true CN202381110U (en) | 2012-08-15 |
Family
ID=46629623
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120416413XU Expired - Fee Related CN202381110U (en) | 2011-10-27 | 2011-10-27 | Long anchor rod pre-supporting device applied in unstable stope roof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202381110U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110145348A (en) * | 2019-05-05 | 2019-08-20 | 中交第三公路工程局有限公司 | Long system anchor bolt construction method under a kind of Europe superscript New Austrian Tunneling Method standard |
| CN113266406A (en) * | 2021-07-06 | 2021-08-17 | 山东黄金矿业股份有限公司新城金矿 | Anchor cable trolley |
-
2011
- 2011-10-27 CN CN201120416413XU patent/CN202381110U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110145348A (en) * | 2019-05-05 | 2019-08-20 | 中交第三公路工程局有限公司 | Long system anchor bolt construction method under a kind of Europe superscript New Austrian Tunneling Method standard |
| CN113266406A (en) * | 2021-07-06 | 2021-08-17 | 山东黄金矿业股份有限公司新城金矿 | Anchor cable trolley |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120815 Termination date: 20131027 |