CN107905825A - It is a kind of new for no coal pillar mining and erosion control yield timbering - Google Patents
It is a kind of new for no coal pillar mining and erosion control yield timbering Download PDFInfo
- Publication number
- CN107905825A CN107905825A CN201711042768.5A CN201711042768A CN107905825A CN 107905825 A CN107905825 A CN 107905825A CN 201711042768 A CN201711042768 A CN 201711042768A CN 107905825 A CN107905825 A CN 107905825A
- Authority
- CN
- China
- Prior art keywords
- pier stud
- steel pipe
- hollow
- hollow pier
- timbering
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000003245 coal Substances 0.000 title claims abstract description 14
- 230000003628 erosive effect Effects 0.000 title claims abstract description 13
- 238000005065 mining Methods 0.000 title claims abstract description 13
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 132
- 239000010959 steel Substances 0.000 claims abstract description 132
- 238000003466 welding Methods 0.000 claims description 15
- 239000000463 material Substances 0.000 claims description 5
- 241000124033 Salix Species 0.000 claims description 3
- 239000002023 wood Substances 0.000 claims description 3
- 239000002689 soil Substances 0.000 claims description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
- 239000002002 slurry Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 229910052742 iron Inorganic materials 0.000 description 3
- 241001270131 Agaricus moelleri Species 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000007569 slipcasting Methods 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 229920002472 Starch Polymers 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D15/00—Props; Chocks, e.g. made of flexible containers filled with backfilling material
- E21D15/02—Non-telescopic props
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The present invention relates to a kind of new for no coal pillar mining and erosion control yield timbering,Steel pipe lower end closed in hollow pier stud,Steel pipe upper end opening in hollow pier stud,Hollow pier stud outer steel pipe lower ending opening,Hollow pier stud outer steel pipe upper end sets the closed plate with closed plate spout hole,Round log in pier stud is set in hollow pier stud outer steel pipe,The hollow cavity of the hollow pier stud outer steel pipe is stretched into the upper end of steel pipe in the hollow pier stud,And offset with round log in pier stud,Round log center offers central through hole corresponding with closed plate spout hole in pier stud,Outer wall of steel pipe is welded to connect in the bottom of the hollow pier stud outer steel pipe and the hollow pier stud,Pier stud grouting port is offered in hollow pier stud on steel pipe,Grouting port gate valve is provided with pier stud grouting port,Steel pipe bottom sets steel pipe pier stud skate in hollow pier stud,The hollow cavity of steel pipe is concrete accommodating space in hollow pier stud.
Description
Technical field
The present invention relates to mine roadway support field, more particularly to a kind of new allowed for no coal pillar mining and erosion control to press branch
Column.
Background technology
Concrete filled steel tube pier stud, is widely used in coal mine gob-side entry retaining prop, the supporting of all kinds of mine roof crackings band, colliery
The geotechnical engineering strengthening supporting such as bump roof timbering and tunnel.Traditional concrete filled steel tube pier stud support is big there are intensity
When bore top, intensity it is small when the problem of bent or even fractureing.
The content of the invention
The technical problems to be solved by the invention are：Solve traditional concrete filled steel tube pier stud support strength it is big when bore top,
The problem of bent or even fracture when intensity is small.
The present invention is to solve the problems, such as that used technical solution set forth above is：
It is a kind of it is new for steel pipe 1 in no coal pillar mining and erosion control yield timbering, including hollow pier stud, hollow pier stud outer steel pipe 2,
Round log 3, pier stud grouting port 8, grouting port gate valve 9 and steel pipe pier stud skate 11 in pier stud, 1 lower end closed of steel pipe in hollow pier stud,
1 upper end opening of steel pipe in hollow pier stud, hollow 2 lower ending opening of pier stud outer steel pipe, hollow 2 upper end of pier stud outer steel pipe, which is set, has envelope
The closed plate 12 of closing plate spout hole 13, sets round log 3 in pier stud in hollow pier stud outer steel pipe 2, steel pipe 1 in the hollow pier stud
The hollow cavity of the hollow pier stud outer steel pipe 2 is stretched into upper end, and offsets with round log in pier stud 3, and 3 center of round log is opened in pier stud
Equipped with central through hole 14 corresponding with closed plate spout hole 13, the bottom of the hollow pier stud outer steel pipe 2 and the hollow pier stud
Interior 1 outer wall of steel pipe is welded to connect, and offers pier stud grouting port 8 in hollow pier stud on steel pipe 1, note is provided with pier stud grouting port 8
Starch mouth gate valve 9,1 bottom of steel pipe sets steel pipe pier stud skate 11 in hollow pier stud, and the hollow cavity of steel pipe 1 is mixed in hollow pier stud
Solidifying soil accommodating space.
3 upper surface of round log offsets with closed plate 12 in the pier stud.
The closed plate spout hole 13 is coaxially disposed with central through hole 14.
Place freezes and has welding between 1 outer wall of steel pipe in the bottom of the hollow pier stud outer steel pipe 2 and the hollow pier stud
Material.
The welding material is pier stud outer and inner tube welding wire 6.
The pier stud outer and inner tube welding wire 6 is diameter 5-10mm steel wires, and steel inside and outside connection sealing is played after welding
The purpose of pipe.Meanwhile pressure it is big when before steel pipe bent steel wire crack first, ensure pier stud it is indeformable.
It is provided with pier stud top cap 5 in the closed plate 12, pier stud top cap 5 is the low convex configuration of middle high surrounding, pier
Pier stud top spout hole 4 is offered on capital cap 5.
Steel pipe pier stud handgrip 10 is provided with the hollow pier stud on the outer wall of steel pipe 1,
The bottom of steel pipe 1 is equipped with downwardly convex pier stud convex surface bottom 7,11 upper surface of steel pipe pier stud skate in the hollow pier stud
With groove 15, pier stud convex surface bottom 7 is engaged with the groove 15.
Round log 3 is slightly softer platane wood or willow in the pier stud.
The pier stud top cap 5 can make of slightly bigger anchor rod pallet board.
The grouting port gate valve 9 is an iron plate gate valve, first plugs gate valve before Grouting Pipe is extracted, prevents slurries from outflowing,
Extracted after concrete setting, it is ensured that concrete fills steel pipe pier stud, proof strength.
Steel pipe 1 and hollow pier stud outer steel pipe 2 are hollow circular tube in the hollow pier stud, central through hole 14 it is a diameter of
50mm。
The operation principle of the present invention：Round log in pier stud is set in hollow pier stud outer steel pipe, the upper end of steel pipe in hollow pier stud
Portion stretches into the hollow cavity of the hollow pier stud outer steel pipe, and offsets with round log in pier stud, is equipped with according to the ratio requirement of regulation
Concrete slurry, the concrete slurry being stirred is injected in hollow pier stud in steel pipe by spray pump, until overflowing from pier stud top
Discharge orifice flows out, while plugs grouting port gate valve, completes the slip casting of a concrete filled steel tube pier stud.This design makes pier stud by complete
" rigidity " is changed into having certain " contractibility ", adds " allow pressure " space of steel pipe pier stud, while circular arc type top, bottom ensure that pier
Column stress all the time uniformly, along pier stud center line, ensure that pillar using effect.
The beneficial effects of the present invention are：1st, it is simple in structure, it is easy to process, it is telescopic by the way that traditional pier stud is processed into
Two-section simultaneously stays round-meshed round log in steel pipe among increase, allowed when increase pier stud is be subject to high pressure and press space；2nd, pass through by
The flat-top steel plate processing camber that steel pipe bottom is common in traditional pier capital cap and hollow pier stud, ensures that top pressure transmits downwards
It is uniform along pier stud center line, while ensure transmission flexible rotating of the pier stud bottom with top pressure.3rd, ensure for 2 points more than
Steel pipe pier stud will not bent or even fracture easily when being subject to high pressure, and effect is fairly obvious.4th, pier stud outer and inner tube welding steel
Pier stud outer and inner tube can be fixed together by silk, be disconnected when pier stud is pressurized and reaches a certain level, outer steel pipe and more yielding
Round log push to be formed it is certain allow pressure space, so as to ensure that steel pipe pier stud is indeformable.4th, the bottom of steel pipe is set in hollow pier stud
There is downwardly convex pier stud convex surface bottom, steel pipe pier stud skate upper surface has groove, pier stud convex surface bottom and the fit depressions,
Steel pipe pier stud skate agrees with completely with pier stud convex surface bottom, ensures the rigidity of pier stud support and rotates flexibility.
Brief description of the drawings
Fig. 1 is the structure diagram of the present invention.
Wherein, steel pipe in the hollow pier studs of 1-, the hollow pier stud outer steel pipes of 2-, round log in 3- pier studs, 4- pier studs top spout hole,
5- pier stud top caps, 6- pier stud outer and inner tube welding wires, 7- pier studs convex surface bottom, 8- pier stud grouting ports, 9- grouting port gate valves, 10-
Steel pipe pier stud handgrip, 11- steel pipe pier stud skates, 12- closed plates, 13- closed plate spout holes, 14- central through holes, 15- grooves.
Embodiment
The embodiment of the present invention is further illustrated below in conjunction with the accompanying drawings.
It is a kind of new for no coal pillar mining and erosion control yield timbering described in present embodiment with reference to Fig. 1, including
Steel pipe 1 in hollow pier stud, hollow pier stud outer steel pipe 2, round log 3, pier stud grouting port 8, grouting port gate valve 9 and steel pipe pier stud in pier stud
Skate 11,1 lower end closed of steel pipe in hollow pier stud, 1 upper end opening of steel pipe in hollow pier stud, hollow 2 lower end of pier stud outer steel pipe is opened
Mouthful, hollow 2 upper end of pier stud outer steel pipe sets the closed plate 12 with closed plate spout hole 13, is set in hollow pier stud outer steel pipe 2
Round log 3 in pier stud, the hollow cavity of the hollow pier stud outer steel pipe 2 is stretched into the upper end of steel pipe 1 in the hollow pier stud, and with
Round log 3 offsets in pier stud, and 3 center of round log offers central through hole 14 corresponding with closed plate spout hole 13 in pier stud, in described
1 outer wall of steel pipe is welded to connect in the bottom of empty pier stud outer steel pipe 2 and the hollow pier stud, is offered in hollow pier stud on steel pipe 1
Pier stud grouting port 8, grouting port gate valve 9 is provided with pier stud grouting port 8, and 1 bottom of steel pipe sets steel pipe pier stud iron in hollow pier stud
Footwear 11, the hollow cavity of steel pipe 1 is concrete accommodating space in hollow pier stud.
3 upper surface of round log offsets with closed plate 12 in the pier stud.
The closed plate spout hole 13 is coaxially disposed with central through hole 14.
Place freezes and has welding between 1 outer wall of steel pipe in the bottom of the hollow pier stud outer steel pipe 2 and the hollow pier stud
Material.
The welding material is pier stud outer and inner tube welding wire 6.
The pier stud outer and inner tube welding wire 6 is diameter 5-10mm steel wires, and steel inside and outside connection sealing is played after welding
The purpose of pipe.Meanwhile pressure it is big when before steel pipe bent steel wire crack first, ensure pier stud it is indeformable.
Arc-shaped pier stud top cap 5 is provided with the closed plate 12, pier stud top spout hole 4 is offered in pier stud top cap 5.
Steel pipe pier stud handgrip 10 is provided with the hollow pier stud on the outer wall of steel pipe 1,
The bottom of steel pipe 1 is equipped with downwardly convex pier stud convex surface bottom 7,11 upper surface of steel pipe pier stud skate in the hollow pier stud
With groove 15, pier stud convex surface bottom 7 is engaged with the groove 15.
Round log 3 is slightly softer platane wood or willow in the pier stud.
The pier stud top cap 5 can make of slightly bigger anchor rod pallet board.
The grouting port gate valve 9 is an iron plate gate valve, first plugs gate valve before Grouting Pipe is extracted, prevents slurries from outflowing,
Extracted after concrete setting, it is ensured that concrete fills steel pipe pier stud, proof strength.
Steel pipe 1 and hollow pier stud outer steel pipe 2 are hollow circular tube in the hollow pier stud, central through hole 14 it is a diameter of
50mm。
The operation principle of present embodiment：Round log in pier stud is set in hollow pier stud outer steel pipe, steel in hollow pier stud
The hollow cavity of the hollow pier stud outer steel pipe is stretched into the upper end of pipe, and offsets with round log in pier stud, according to the proportioning of regulation
It is required that being equipped with concrete slurry, the concrete slurry being stirred is injected in hollow pier stud in steel pipe by spray pump, until from
The spout hole outflow of pier stud top, while grouting port gate valve is plugged, complete the slip casting of a concrete filled steel tube pier stud.This design makes pier stud
It is changed into having certain " contractibility " from complete " rigidity ", adds " allow pressure " space of steel pipe pier stud, while circular arc type top, bottom guarantor
Demonstrate,proved pier stud stress all the time uniformly, along pier stud center line, ensure that pillar using effect.
The beneficial effect of present embodiment is：1st, it is simple in structure, it is easy to process, by the way that traditional pier stud is processed into
Telescopic two-section simultaneously stays round-meshed round log in steel pipe among increase, allowed when increase pier stud is be subject to high pressure and press space；
2nd, by the way that the common flat-top steel plate of steel pipe bottom in traditional pier capital cap and hollow pier stud is processed camber, top pressure is ensured
That transmits downwards is uniform along pier stud center line, while ensures transmission flexible rotating of the pier stud bottom with top pressure.3rd, more than
2 points ensure that steel pipe pier stud will not bent or even fracture easily when being subject to high pressure, and effect is fairly obvious.4th, steel inside and outside pier stud
Pier stud outer and inner tube can be fixed together by pipe welding wire, pier stud be pressurized reache a certain level when disconnect, outer steel pipe and
More yielding round log push to be formed it is certain allow pressure space, so as to ensure that steel pipe pier stud is indeformable.4th, steel pipe in hollow pier stud
Bottom be equipped with downwardly convex pier stud convex surface bottom, steel pipe pier stud skate upper surface has a groove, pier stud convex surface bottom with it is described recessed
Groove is engaged, and steel pipe pier stud skate agrees with completely with pier stud convex surface bottom, is ensured the rigidity of pier stud support and is rotated flexibility.
The specific embodiment of the present invention is not construed as limiting the invention, every similar structure using the present invention and change
Change, within the scope of the present invention.
Claims (7)
- It is 1. a kind of new for no coal pillar mining and erosion control yield timbering, it is characterised in that：Including steel pipe in hollow pier stud（1）、 Hollow pier stud outer steel pipe（2）, round log in pier stud（3）, pier stud grouting port (8), grouting port gate valve (9) and steel pipe pier stud skate (11), steel pipe (1) lower end closed in hollow pier stud, steel pipe (1) upper end opening in hollow pier stud, under hollow pier stud outer steel pipe (2) End opening, hollow pier stud outer steel pipe (2) upper end set the closed plate (12) with closed plate spout hole (13), the outer steel of hollow pier stud Manage and round log (3) in pier stud is set in (2), the hollow pier stud outer steel pipe is stretched into the upper end of steel pipe (1) in the hollow pier stud (2) hollow cavity, and offset with round log in pier stud (3), round log (3) center offers and closed plate spout hole (13) in pier stud Corresponding central through hole (14), steel pipe (1) outer wall welding in the bottom of the hollow pier stud outer steel pipe (2) and the hollow pier stud Connect, offer pier stud grouting port (8) on steel pipe (1) in hollow pier stud, pier stud grouting port is provided with grouting port gate valve on (8) (9), steel pipe (1) bottom sets steel pipe pier stud skate (11) in hollow pier stud, and the hollow cavity of steel pipe (1) is mixed in hollow pier stud Solidifying soil accommodating space.
- It is 2. as claimed in claim 1 a kind of new for no coal pillar mining and erosion control yield timbering, it is characterised in that：Described Round log (3) upper surface offsets with closed plate (12) in pier stud.
- It is 3. as claimed in claim 1 a kind of new for no coal pillar mining and erosion control yield timbering, it is characterised in that：Described Place freezes and has welding material between steel pipe (1) outer wall in the bottom of hollow pier stud outer steel pipe (2) and the hollow pier stud.
- It is 4. as claimed in claim 1 a kind of new for no coal pillar mining and erosion control yield timbering, it is characterised in that：Described It is provided with pier stud top cap (5) in closed plate (12), the low convex configuration of high surrounding among pier stud top cap (5), in pier stud top cap (5) Offer pier stud top spout hole (4).
- It is 5. as claimed in claim 1 a kind of new for no coal pillar mining and erosion control yield timbering, it is characterised in that：Described The bottom of steel pipe (1) is equipped with downwardly convex pier stud convex surface bottom (7) in hollow pier stud, and steel pipe pier stud skate (11) upper surface has Groove (15), pier stud convex surface bottom (7) are engaged with the groove (15).
- It is 6. as claimed in claim 1 a kind of new for no coal pillar mining and erosion control yield timbering, it is characterised in that：Described Round log (3) is slightly softer platane wood or willow in pier stud.
- It is 7. as claimed in claim 1 a kind of new for no coal pillar mining and erosion control yield timbering, it is characterised in that：Described Steel pipe (1) and hollow pier stud outer steel pipe (2) are hollow circular tube in hollow pier stud, a diameter of 50mm of central through hole (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711042768.5A CN107905825A (en) | 2017-10-31 | 2017-10-31 | It is a kind of new for no coal pillar mining and erosion control yield timbering |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711042768.5A CN107905825A (en) | 2017-10-31 | 2017-10-31 | It is a kind of new for no coal pillar mining and erosion control yield timbering |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107905825A true CN107905825A (en) | 2018-04-13 |
Family
ID=61843142
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711042768.5A Pending CN107905825A (en) | 2017-10-31 | 2017-10-31 | It is a kind of new for no coal pillar mining and erosion control yield timbering |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107905825A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE507988A (en) * | ||||
| DE633478C (en) * | 1936-07-28 | Gewerk Eisenhuette Westfalia | Resilient pit stamp | |
| GB498676A (en) * | 1937-07-08 | 1939-01-09 | Ernest John Egerton Boys | Improvements in and relating to pit and like props |
| CN1959063A (en) * | 2006-10-17 | 2007-05-09 | 中国矿业大学(北京) | Supporting device |
| CN103168147A (en) * | 2010-08-02 | 2013-06-19 | 克雷格·道格拉斯·巴奈特 | An improved prop for mining, construction and the like |
| CN103485801A (en) * | 2013-08-26 | 2014-01-01 | 中国矿业大学(北京) | Roadway support device for dynamic pressure roadway and retaining roadway along goaf |
| EP2698500A2 (en) * | 2012-08-17 | 2014-02-19 | Mine Support Products (pty) Ltd | Prop |
| US20150147122A1 (en) * | 2013-11-22 | 2015-05-28 | Fci Holdings Delaware, Inc. | Yieldable Prop with Yieldable Insert |
-
2017
- 2017-10-31 CN CN201711042768.5A patent/CN107905825A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE507988A (en) * | ||||
| DE633478C (en) * | 1936-07-28 | Gewerk Eisenhuette Westfalia | Resilient pit stamp | |
| GB498676A (en) * | 1937-07-08 | 1939-01-09 | Ernest John Egerton Boys | Improvements in and relating to pit and like props |
| CN1959063A (en) * | 2006-10-17 | 2007-05-09 | 中国矿业大学(北京) | Supporting device |
| CN103168147A (en) * | 2010-08-02 | 2013-06-19 | 克雷格·道格拉斯·巴奈特 | An improved prop for mining, construction and the like |
| EP2698500A2 (en) * | 2012-08-17 | 2014-02-19 | Mine Support Products (pty) Ltd | Prop |
| CN103485801A (en) * | 2013-08-26 | 2014-01-01 | 中国矿业大学(北京) | Roadway support device for dynamic pressure roadway and retaining roadway along goaf |
| US20150147122A1 (en) * | 2013-11-22 | 2015-05-28 | Fci Holdings Delaware, Inc. | Yieldable Prop with Yieldable Insert |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180413 |
|
| RJ01 | Rejection of invention patent application after publication |