CN102733831A - Forepoling bar forpoling construction method and device used - Google Patents
Forepoling bar forpoling construction method and device used Download PDFInfo
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- CN102733831A CN102733831A CN2012101873491A CN201210187349A CN102733831A CN 102733831 A CN102733831 A CN 102733831A CN 2012101873491 A CN2012101873491 A CN 2012101873491A CN 201210187349 A CN201210187349 A CN 201210187349A CN 102733831 A CN102733831 A CN 102733831A
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- forestope
- forepoling
- top plate
- bar
- construction method
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Abstract
The invention discloses forepoling bar forpoling construction method and a device used. The method comprises the steps of: reserving 30-50cm length of a thread exposed end of an anchor rod at the top of a laneway during one-time spraying poling of the anchored net for the laneway, enabling the thread head of the anchor rod to be exposed out of the surface of the polling, installing front and rear suspension rings with adjustable heights through the thread head of the anchor rod, inserting forepoling bars into the two suspension rings, forward extending to a working surface, cushioning a sole timber in a clearance between the forepoling bar and a top plate, and adjusting the heights of the two suspension rings, thus adjusting the extending angle of the forepoling bar and enabling the front end of the forepoling bar to support the suspended top plate. The construction method enables the forepoling bar to move forward to the greatest extent, and maximizes the construction operation space of the anchored net, thus facilitating construction for workers; and the forepoling part of the forepoling bar is clung to the top plate, thus enhancing the whole supporting action of the forepoling bar, and being capable of effectively supporting the top plate even under the condition small inbreak or underbreak of the top plate.
Description
Technical field
Temporary lining when the present invention relates to tunnelling.
Background technology
At present, the spray of anchor net has become the development trend of roadway support technology.It has, and support cost is low, supporting effect good, singly advance the speed advantages of higher.In the process of anchor net spray support process development, corresponding supporting temporary lining is also being brought in constant renewal in, like wooden fore-set, band cap point post, forestope advance support etc.The forestope advance support has certain superiority when especially crossing tomography and incompetent bed zone of fracture.The technology relevant with the application is forestope advance support technology.
Find that in the tunnelling supporting practice itself still there are two drawbacks in forestope advance support technology.The one, forestope can not directly hold top board, does not have support action to a certain extent, only can play cushioning effect to the cash that collapses, and can not play the protective effect of essence to staff under the forestope; The 2nd, in the last driving of going down the hill, forestope is sliding to be prone to take off hurt sb.'s feelings.
Summary of the invention:
In order to improve the safe coefficient of forestope advance support technology, the object of the present invention is to provide a kind of forestope advanced supporting construction method and application apparatus.
A kind of forestope advanced supporting construction method is characterized in that, when the anchor net sprays once supporting in the tunnel; The screw thread exposed junction of tunnel roll bolt is reserved 30cm-50cm length, make the thread head of anchor pole expose the supporting surface, again the thread head through anchor pole; Install the suspension ring of former and later two adjustment heights, forestope is inserted in two suspension rings, and spy reaches work plane forward; Chock in the gap of forestope and top board, filling up again; Regulate two suspension ring height, thereby regulate the angle that forestope stretches out, and make the forestope front end hold unsettled top board.
In order to prevent the forestope slippage, retaining head and chaining should be established in the forestope rear end.
In order to realize said method, the device that the present invention uses is:
A kind of forestope advance support application apparatus is characterized in that it is the suspension ring of an adjustment height; The structure of suspension ring is ability of the top side of montant welding and the supporting attaching nut of roof timbering anchor pole, to be with sleeve on the montant; One face down bonding of sleeve is connected to the steel plate in band circle hole; Diameter and the external diameter of forestope in circle hole are complementary, and the lower end of montant is processed with screw thread and pallet is installed, through the screw thread adjustment nut of screwing on.
When using this device; Through the attaching nut it is suspended on the top board; Every forestope need suspend two in midair, then forestope is penetrated in former and later two circle holes, and pad is gone up chock in the gap of forestope and top board; Adjust and choose angle on the forestope through the adjustment nut, make forestope hold unsettled top board.
Advantage of the present invention is:
(1) support process is simple, and workload is little, and structure is drawn materials and moved forward conveniently;
(2) forestope can move forward as far as possible, makes anchor net construction operation space reach maximization, makes things convenient for the workman to construct;
(3) visit part before the forestope and be close to top board, strengthened the whole support action of front-probe support, under the small-sized inbreak of top board or the situation of owing to dig, also can carry out effective support top board;
(4) visiting partial-length before the forestope can change and adjustment flexibly according to construction advance of working cycle and back situation;
When going down the hill tunnelling (5), when forestope glided under action of gravity, sleeve rotated thereupon, formed auto-lock function;
Description of drawings
Fig. 1 is the present invention's sketch map of constructing;
Fig. 2 is to use the front view of device suspension ring.
Marginal data: 1-anchor pole; The 2-suspension ring; The 3-forestope; The 4-chock; 5a-keeps off head; The 5b-chaining; The 6-montant; 7-attaching nut; The 8-sleeve; The 9-pallet; 10-adjusts nut; The 11-steel plate; 12-circle hole.
The specific embodiment
As shown in Figure 1, a kind of forestope advanced supporting construction method, it is when the anchor net sprays once supporting in the tunnel; The screw thread exposed junction of tunnel roll bolt 1 is reserved 30cm-50cm length, make the thread head of anchor pole 1 expose the supporting surface, pass through the thread head of anchor pole 1 again; Install the suspension ring 2 of former and later two adjustment heights, forestope 3 is inserted in two suspension rings 2, and spy reaches work plane forward; Chock 4 in the gap of forestope 3 and top board, filling up again; Regulate two suspension rings, 2 height, thereby regulate the angle that forestope 3 stretches out, and make forestope 3 front ends hold unsettled top board; In order to prevent the forestope slippage, a retaining 5a and chaining 5b should be established in the forestope rear end.In order to prevent that forestope 2 from hanging over chaining 5b on the suspension ring 2 to retrolisthesis, keep off 5 prevention forestope 2 slippage forward during the driving go-downhill roadway during driving bord-up.
In order to realize said method, the suspension ring device that the present invention uses is as shown in Figure 2:
When using this device; Through attaching nut 7 it is suspended on the top board; Every forestope 3 needs two suspension rings 2 of suspention, then forestope 3 is penetrated in former and later two circle holes 12, and pad is gone up chock 4 in the gap of forestope 3 and top board; Adjust on the forestope 3 and choose angle through adjustment nut 10, make forestope 3 hold unsettled top board.
Claims (3)
1. a forestope advanced supporting construction method is characterized in that, when the anchor net sprays once supporting in the tunnel; The screw thread exposed junction of tunnel roll bolt is reserved 30cm-50cm length, make the thread head of anchor pole expose the supporting surface, again the thread head through anchor pole; Install the suspension ring of former and later two adjustment heights, forestope is inserted in two suspension rings, and spy reaches work plane forward; Chock in the gap of forestope and top board, filling up again; Regulate two suspension ring height, thereby regulate the angle that forestope stretches out, and make the forestope front end hold unsettled top board.
2. forestope advanced supporting construction method as claimed in claim 1 is characterized in that, the forestope rear end is provided with retaining head and chaining.
3. suspension ring that is used for the said method of claim 1; It is characterized in that it is ability of the top side of montant welding and the supporting attaching nut of roof timbering anchor pole, is with sleeve on the montant; One face down bonding of sleeve is connected to the steel plate in band circle hole; Diameter and the external diameter of forestope in circle hole are complementary, and the lower end of montant is processed with screw thread and pallet is installed, through the screw thread adjustment nut of screwing on.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210187349.1A CN102733831B (en) | 2012-05-31 | 2012-05-31 | Forepoling bar forpoling construction method and device used |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210187349.1A CN102733831B (en) | 2012-05-31 | 2012-05-31 | Forepoling bar forpoling construction method and device used |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102733831A true CN102733831A (en) | 2012-10-17 |
| CN102733831B CN102733831B (en) | 2014-10-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210187349.1A Expired - Fee Related CN102733831B (en) | 2012-05-31 | 2012-05-31 | Forepoling bar forpoling construction method and device used |
Country Status (1)
| Country | Link |
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| CN (1) | CN102733831B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102900445A (en) * | 2012-11-12 | 2013-01-30 | 淮南矿业(集团)有限责任公司 | Temporary supporting device for anchor net roadway |
| CN104763451A (en) * | 2015-04-16 | 2015-07-08 | 刘允勇 | Adjustable front canopy clamping cable |
| CN108361053A (en) * | 2018-03-13 | 2018-08-03 | 山东里能鲁西矿业有限公司 | A kind of roadway support front cantilever apparatus and method |
| CN109630169A (en) * | 2018-11-09 | 2019-04-16 | 新汶矿业集团有限责任公司 | A kind of full cable bolting laneway temporary support front canopy suspension device and application |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4630974A (en) * | 1985-03-13 | 1986-12-23 | Price & Adams | Roof support system for a mine and method for providing the same |
| CN1580491A (en) * | 2003-08-01 | 2005-02-16 | 新汶矿业集团汶南煤矿有限责任公司 | Advanced supporting and protecting technology for cracked top plate of digging operation face |
| CN200955402Y (en) * | 2006-09-29 | 2007-10-03 | 永城煤电集团有限责任公司 | Probing-beam fixing device in front of anchor-net lane temporary support |
| CN201620898U (en) * | 2010-02-10 | 2010-11-03 | 孙森 | Double-wing lifting type front canopy hoisting ring device |
| CN202596751U (en) * | 2012-05-31 | 2012-12-12 | 山东科技大学 | Front canopy advance support using device |
-
2012
- 2012-05-31 CN CN201210187349.1A patent/CN102733831B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4630974A (en) * | 1985-03-13 | 1986-12-23 | Price & Adams | Roof support system for a mine and method for providing the same |
| CN1580491A (en) * | 2003-08-01 | 2005-02-16 | 新汶矿业集团汶南煤矿有限责任公司 | Advanced supporting and protecting technology for cracked top plate of digging operation face |
| CN200955402Y (en) * | 2006-09-29 | 2007-10-03 | 永城煤电集团有限责任公司 | Probing-beam fixing device in front of anchor-net lane temporary support |
| CN201620898U (en) * | 2010-02-10 | 2010-11-03 | 孙森 | Double-wing lifting type front canopy hoisting ring device |
| CN202596751U (en) * | 2012-05-31 | 2012-12-12 | 山东科技大学 | Front canopy advance support using device |
Non-Patent Citations (1)
| Title |
|---|
| 杨国华: "锚网喷巷道掘进临时支护工艺探讨", 《矿业安全与环保》 * |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102900445A (en) * | 2012-11-12 | 2013-01-30 | 淮南矿业(集团)有限责任公司 | Temporary supporting device for anchor net roadway |
| CN102900445B (en) * | 2012-11-12 | 2015-10-21 | 淮南矿业(集团)有限责任公司 | Tunnel temporary support device |
| CN104763451A (en) * | 2015-04-16 | 2015-07-08 | 刘允勇 | Adjustable front canopy clamping cable |
| CN108361053A (en) * | 2018-03-13 | 2018-08-03 | 山东里能鲁西矿业有限公司 | A kind of roadway support front cantilever apparatus and method |
| CN108361053B (en) * | 2018-03-13 | 2019-11-05 | 山东里能鲁西矿业有限公司 | A kind of roadway support front cantilever apparatus and method |
| CN109630169A (en) * | 2018-11-09 | 2019-04-16 | 新汶矿业集团有限责任公司 | A kind of full cable bolting laneway temporary support front canopy suspension device and application |
| CN109630169B (en) * | 2018-11-09 | 2020-10-09 | 新汶矿业集团有限责任公司 | Full-anchor-cable supporting roadway temporary supporting forepoling beam suspension device and application |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102733831B (en) | 2014-10-22 |
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