CN101982644A - Continuously progressive yielding anchor plate - Google Patents
Continuously progressive yielding anchor plate Download PDFInfo
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- CN101982644A CN101982644A CN 201010515672 CN201010515672A CN101982644A CN 101982644 A CN101982644 A CN 101982644A CN 201010515672 CN201010515672 CN 201010515672 CN 201010515672 A CN201010515672 A CN 201010515672A CN 101982644 A CN101982644 A CN 101982644A
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- pallet
- allowing
- pressure
- yielding
- groove
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Abstract
The invention discloses a continuously progressive yielding anchor plate, comprising a dish-shaped plate body, wherein the thickness of the plate body gradually increases from the edge to the center and changes between 5mm and 50mm; the bottom surface of the dish-shaped plate body is provided with a plurality of circles of ring-shaped yielding grooves; the depth of the yielding grooves is 1-3mm; the interval between the yielding grooves is 2-4mm; the starting yielding grooves on the outmost edges are arranged on the curve starting lines contacted with the rock walls; and the terminating yielding grooves are arranged on the shoulders of the plate. The plate has strong adaptability to surrounding rock deformation, can yield continuously progressively, has high later bearing capacity and is better matched with the high strength anchor bolts.
Description
Technical field
The present invention relates to the anchor rod system that mine working, traffic tunnel, the supporting of water conservancy culvert are used, relate in particular to the pallet on the anchor pole.
Background technology
In the underground passage bolt support, pallet is a vitals in the bolt support system.Because the power that anchor pole acts on the surface, tunnel is that a centrostigma carries, will produce great stress and concentrate if anchor nut directly acts on country rock, be easy to penetrate country rock and cause anchor pole to lose efficacy, adopt pallet to connect the realization Load Transfer for this reason, play the carrying effect.Can also realize the even distribution of anchor pole load by pallet, it is stressed to optimize termination point of anchor rod, enlarges the bolt support scope, has strengthened the reliability of supporting simultaneously.
The pallet of colliery use at present mainly contains plate shaped pallet, cast iron pallet, butterfly pallet and M shape pallet etc.Relevant with the present invention is the butterfly pallet.Because present butterfly pallet is to use the steel plate of uniform thickness to be stamped to form, consistency of thickness, fragility is big, distortion unloading suddenly or fracture easily when roadway deformation pressure is big, it is poor to adapt to deformability, continues to allow a little less than the pressure energy power, is difficult to coupling with High strength bolt.
Summary of the invention
The invention provides the progressive pressure-relieving achor bar pallet of a kind of sustainability, thereby solve in the supporting of high-ground stress roadway bolt and continue the progressive pressure problem that allows, can guarantee to form high-strength anchored force after this anchor pole is installed, and suitable for surrounding rock distortion to greatest extent, can effectively control country rock and continue progressive stress release, ensure roadway support safety.
The structure of the progressive pressure-relieving achor bar pallet of continuation of the present invention is: it comprises the butterfly pallet body, it is characterized in that, to the center progressive additive, the varied in thickness scope is 5～50mm to the thickness of tray body from the edge; Be provided with the circular pressure groove that allows of multi-turn in the bottom surface of butterfly pallet body, allowing and pressing the degree of depth of groove is 1～3mm, every circle groove is 2～4mm at interval, and initial the allowing at wherein edge presses channel layout on the curved surface start line that contact with crag, stops allowing the shoulder of pressure channel layout at pallet.
The press reason that allows of the present invention is: for the high-ground stress tunnel of bolt support, should control surrouding rock deformation, need discharge stress again, to reach the strength and stiffness coupling of country rock and anchor pole.When country rock discharges when heavily stressed, the initial stage is big, the later stage is less, and discharging stress needs " allowing " big the time, needs " resisting " in the time of little.Because progressive the allowing of this continuation presses the thickness of pallet progressively to increase to the center from the edge, and allow and press groove to play initiatively to allow the effect of pressing, but drag increases gradually, not only " has allowed " but also " resisting ", convenient realization continues, the progressive pressure that allows, and guarantees the safe and effective of bolt support structure.
The advantage of the progressive pressure-relieving achor bar pallet of continuation of the present invention is: the suitable for surrounding rock deformability is strong, the sustainable progressive pressure that allows, and the later stage supporting capacity is big, and better and high strength anchor bar is complementary.
Description of drawings
Fig. 1 is the front view of the progressive pressure-relieving achor bar pallet of continuation.
Marginal data: 1-butterfly pallet body; 2-allows the pressure groove; The initial pressure groove that allows of 3-; 4-stops allowing the pressure groove.
The specific embodiment
As shown in Figure 1, the present invention includes butterfly pallet body 1, to the center progressive additive, the varied in thickness scope is 5～50mm to the thickness of butterfly pallet body 1 from the edge; Be provided with circular the allowing of multi-turn in the bottom surface of butterfly pallet body 1 and press groove 2, allowing and pressing the degree of depth of groove 2 is 1～3mm, every circle allows presses groove 2 2～4mm at interval, initial the allowing at wherein edge presses groove 3 to be arranged on the curved surface start line that contact with crag, stops allowing pressure groove 4 be arranged in the shoulder of butterfly tray body 1.
Claims (1)
1. progressive pressure-relieving achor bar pallet of continuation, it comprises the butterfly pallet body, it is characterized in that, to the center progressive additive, the varied in thickness scope is 5～50mm to the thickness of tray body from the edge; Be provided with the circular pressure groove that allows of multi-turn in the bottom surface of butterfly pallet body, allowing and pressing the degree of depth of groove is 1～3mm, every circle groove is 2～4mm at interval, and initial the allowing at wherein edge presses channel layout on the curved surface start line that contact with crag, stops allowing the shoulder of pressure channel layout at pallet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105156728A CN101982644B (en) | 2010-10-16 | 2010-10-16 | Continuously progressive yielding anchor plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105156728A CN101982644B (en) | 2010-10-16 | 2010-10-16 | Continuously progressive yielding anchor plate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101982644A true CN101982644A (en) | 2011-03-02 |
| CN101982644B CN101982644B (en) | 2012-10-31 |
Family
ID=43619551
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010105156728A Active CN101982644B (en) | 2010-10-16 | 2010-10-16 | Continuously progressive yielding anchor plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101982644B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108386213A (en) * | 2018-04-23 | 2018-08-10 | 同济大学 | A kind of duct pieces of shield tunnel Varying-thickness steel loop |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4112693A (en) * | 1976-09-30 | 1978-09-12 | Kaiser Steel Corporation | Mine roof support plate |
| GB2292199A (en) * | 1994-08-02 | 1996-02-14 | Ani Corp Limited The | Bearer plate for rock bolts |
| CN1144876A (en) * | 1996-03-08 | 1997-03-12 | 李占英 | Equi-strength prop pressure-relieving achor bar for expansive soft rock |
| DE102006006748A1 (en) * | 2006-01-16 | 2007-07-19 | Berwald, Werner P., Dipl.-Ing. | In-liner hollow rod compound anchor for installation in mountains, tunnels and rock constructions has no boring dust suction channel or inner adhesive magazine tube |
| CN201377330Y (en) * | 2009-03-17 | 2010-01-06 | 山东恒达矿山支护有限公司 | Wing compressible pallet and horseshoe cushion |
| CN201826870U (en) * | 2010-10-16 | 2011-05-11 | 山东科技大学 | Tray of continuously progressively yielding anchor rod |
-
2010
- 2010-10-16 CN CN2010105156728A patent/CN101982644B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4112693A (en) * | 1976-09-30 | 1978-09-12 | Kaiser Steel Corporation | Mine roof support plate |
| GB2292199A (en) * | 1994-08-02 | 1996-02-14 | Ani Corp Limited The | Bearer plate for rock bolts |
| CN1144876A (en) * | 1996-03-08 | 1997-03-12 | 李占英 | Equi-strength prop pressure-relieving achor bar for expansive soft rock |
| DE102006006748A1 (en) * | 2006-01-16 | 2007-07-19 | Berwald, Werner P., Dipl.-Ing. | In-liner hollow rod compound anchor for installation in mountains, tunnels and rock constructions has no boring dust suction channel or inner adhesive magazine tube |
| CN201377330Y (en) * | 2009-03-17 | 2010-01-06 | 山东恒达矿山支护有限公司 | Wing compressible pallet and horseshoe cushion |
| CN201826870U (en) * | 2010-10-16 | 2011-05-11 | 山东科技大学 | Tray of continuously progressively yielding anchor rod |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108386213A (en) * | 2018-04-23 | 2018-08-10 | 同济大学 | A kind of duct pieces of shield tunnel Varying-thickness steel loop |
| CN108386213B (en) * | 2018-04-23 | 2024-05-31 | 同济大学 | Variable-thickness steel ring of shield tunnel segment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101982644B (en) | 2012-10-31 |
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Effective date of registration: 20210105 Address after: No. 1501, Beixin West Road, Tengzhou City, Shandong Province 277599 Patentee after: TENGZHOU INSTITUTE OF PRODUCT QUALITY SUPERVISION AND INSPECTION Address before: 266510 Shandong University of Science and Technology, Shandong, Qingdao, 579 Bay Road, economic and Technological Development Zone Patentee before: Shandong University of Science and Technology |