CN104805837A - Tube seam grouting combined anchor rod body - Google Patents
Tube seam grouting combined anchor rod body Download PDFInfo
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- CN104805837A CN104805837A CN201410044516.6A CN201410044516A CN104805837A CN 104805837 A CN104805837 A CN 104805837A CN 201410044516 A CN201410044516 A CN 201410044516A CN 104805837 A CN104805837 A CN 104805837A
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Abstract
The invention discloses a tube seam grouting combined anchor rod body and relates to an anchor rod body with a tube seam anchor rod used as a grouting tube or a grouting tube anchor rod of geotechnical engineering support. The combined anchor rod body aims at overcoming the defects that primary support tube seam anchor rods and secondary rock and soil grouting reinforcement grouting tubes or grouting tube anchor rods in prior geotechnical engineering support are not considered as a whole, a plurality of rock and soil support reinforcement construction links are included, the technological process is complex, conventional tube seam anchor rod bodies are opening non-closed rings and cannot be used as grouting tubes, and prior conventional tube seam anchor rod anchor force is low. The anchor rod body comprises a section local concave hollow high-strength thin-wall steel tube, a hollow steel tube bolt and hole sealing materials. An inner groove is formed along the overall length longitudinal direction, the hollow steel tube bolt is connected and fixed with an outer end opening of the section local concave hollow high-strength thin-wall steel tube, and the hole sealing material is disposed in an outer end opening longitudinal groove of the thin-wall steel tube. The anchor rod body is used for primary tube seam anchor rod support and later secondary rock and soil grouting reinforcement and used as a grouting tube or a grouting tube anchor rod, the anchor force is large, the rock and soil reinforcement effect is good, and the construction process is simple.
Description
Technical field
The present invention relates to the mine underground tunnels such as a kind of colliery, metallurgy and foundation ditch, the pipe seam anchor bar device of slope retaining and the Grouting Pipe of grouting and reinforcing or Grouting Pipe anchor rod device, especially a kind of pipe seam anchor bar of geotechnical engineering supporting doubles as the Grouting Pipe of grouting and reinforcing or the anchor rod body of Grouting Pipe anchor pole compound action.
Background technology
At present, the known conventional pipe seam anchor bar body of rod is the high tensile steel tube longitudinally cracked along total length rolled by thin steel band, and steel pipe cross section of cracking is for opening annulus jaggy " C ".Operating principle be pipe seam anchor bar squeezed into bore diameter 1-3mm less of anchor bar body external diameter by external force ground boring in or directly squeeze in soil layer, the elasticity along the longitudinal steel pipe that cracks of total length is utilized to produce radial pressure to hole wall, in body of rod length range, make anchor pole and hole wall produce frictional resistance, add the supporting force of anchor bar body outer end pallet, thus play the object that the effect of reinforcing ground reaches stable supporting.
The Grouting Pipe of known rock-reinforcing be generally an outer end be processed with screw thread and in section tube wall is processed the seamless circular steel pipe of more pulp aperture, seamless circular steel pipe inserts has constructed in the boring of slip casting in ground, injected hole diameter is greater than seamless circular steel pipe Grouting Pipe external diameter 3-12mm and is convenient in Grouting Pipe insertion injected hole, sealing material is inserted in the injected hole hole wall in slip casting aperture and the gap of seamless circular steel pipe Grouting Pipe, play injecting paste material when sealing slip casting aperture prevents slip casting to leak outside, and effect Grouting Pipe is fixed in rock mass, during slip casting, the slurries of grouting and reinforcing flow into from the seamless circular steel pipe Grouting Pipe outer end mouth of pipe of ground inlet well orifice position, the inner end mouth of pipe in ground deep has been inserted and pulp aperture flows out and infiltrates ground crack from seamless circular steel pipe Grouting Pipe, seamless circular steel pipe completes the grouting and reinforcing of ground as Grouting Pipe.
Known Grouting Pipe anchor pole is that the slip casting that seamless circular steel pipe Grouting Pipe is carried out terminates, after slurry consolidation, seamless circular steel pipe Grouting Pipe has been bonded and fixed in ground, install pallet and nut in the seamless circular steel pipe outer end as Grouting Pipe, seamless circular steel pipe Grouting Pipe plays Simple anchor rod effect.Seamless circular steel pipe Grouting Pipe outer end after this slip casting in early stage, later stage slurry consolidation being provided with to pallet and nut is referred to as Grouting Pipe anchor pole, and in industry, Grouting Pipe anchor pole is also referred to as grouted anchor bar.
In the mine underground such as colliery, metallurgy tunnel and foundation ditch, slope retaining, in existing geotechnical engineering first time supporting pipe seam anchor bar and the Grouting Pipe of secondary ground grouting and reinforcing or Grouting Pipe anchor pole integrally do not consider, ground support reinforcement construction link is many, workload large, technical matters is more complicated; The supporting of later-stage secondary ground grouting and reinforcing, needs newly to beat injected hole again, new Grouting Pipe or Grouting Pipe anchor pole is installed in processing.Conventional pipe seam anchor bar is by the body of rod along total length longitudinal opening, and section non-closed circular ring structure limits, and can not use as Grouting Pipe; Existing conventional pipe seam anchor bar anchored force is lower.
Summary of the invention
In order to the Grouting Pipe or Grouting Pipe anchor pole that overcome the conventional pipe seam anchor bar of first time supporting in existing geotechnical engineering support reinforcement and secondary ground grouting and reinforcing are not integrally considered, ground support reinforcement construction link is many, workload large, technical matters is more complicated, and the conventional pipe seam anchor bar body of rod is that opening non-closed annulus can not use as Grouting Pipe, the shortcoming that existing conventional pipe seam anchor bar anchored force is lower, the invention provides a kind of pipe seam slip casting Composite Bolt rod device.When this device doubles as the body of rod of pipe seam anchor bar and rock-reinforcing Grouting Pipe or Grouting Pipe anchor pole, construction link reduces, technique is simple, workload reduces, and after slip casting, anchor-holding force of anchor bolt increases further, and rock-reinforcing is effective; Be installed in the boring slightly less than pipe seam slip casting Composite Bolt body of rod caliber or directly squeeze in soil layer, anchored force is large, supporting intensity is high.
Technical scheme of the present invention is: the pipe seam slip casting Composite Bolt body of rod is by the high-strength thin-walled steel pipe of section local inner concave hollow longitudinally forming inner groovy along total length, and the hollow steel tube bolt to be connected and fixed with the external port of the high-strength thin-walled steel pipe of this section local inner concave hollow, and the sealing material in the external port section longitudinal fluting of the high-strength thin-walled steel pipe of this section local inner concave hollow is formed, this is the section of close ring local inner concave along the longitudinal high-strength thin-walled steel pipe of section local inner concave hollow forming inner groovy of total length, the high-strength thin-walled steel pipe of section local inner concave hollow is the conventional pipe seam anchor bar body of rod having breach non-closed annulus compared with section, deformation behavior improves, the high-strength thin-walled penstock installation of section local inner concave hollow is in the boring that aperture is slightly little or directly squeeze in soil layer, to the radial elastic pressure increase that ground hole wall produces, the frictional resistance produced with ground hole wall in the high-strength thin-walled steel pipe length range of section local inner concave hollow increases, anchored force increases, the high-strength thin-walled steel pipe external port of section local inner concave hollow has been connected and fixed hollow steel tube bolt, the pallet that hollow steel tube bolt is used for skyhook is convenient to be connected peripheral grouting equipment as Grouting Pipe with when nut and later stage grouting and reinforcing, hollow steel tube bolt is subdivided into again external thread section and pedestal section, the pedestal section of hollow steel tube bolt and the external port of the high-strength thin-walled steel pipe of section local inner concave hollow are connected and fixed, the external thread section section external diameter of hollow steel tube bolt, be less than the pedestal section section external diameter of hollow steel tube bolt, the rounded step-like transition of this position outer surface, step cutting pattern is convenient to apply to install external force to the high-strength thin-walled steel pipe of section local inner concave hollow, be installed in the slightly little boring in aperture or directly squeeze in soil layer, in the high-strength thin-walled steel pipe of section local inner concave hollow, section tube wall processes more pulp aperture, when the later stage carries out geotechnical engineering grouting and reinforcing, the section local inner concave hollow high-strength thin-walled steel pipe inner end mouth of pipe and the pulp aperture that have inserted ground deep are convenient in slurries infiltration ground crack, grouting serous fluid solidifies rear slurry and the high-strength thin-walled steel pipe of section local inner concave hollow and ground hole wall is consolidated, the anchored force of the high-strength thin-walled steel pipe of section local inner concave hollow increases further, the cross dimensions compared with normal cross dimensions of this section local inner concave hollow high-strength thin-walled steel pipe inner end mouth reduces tapered, be convenient to the high-strength thin-walled penstock installation of section local inner concave hollow in the boring that aperture is slightly little or directly squeeze in soil layer, sealing material is had in the external port section longitudinal fluting of the high-strength thin-walled steel pipe of section local inner concave hollow, during slip casting, sealing material plays sealing slip casting aperture, prevent the effect that injecting paste material leaks outside.
The invention has the beneficial effects as follows: in the mine underground such as colliery, metallurgy tunnel and foundation ditch, slope retaining, the pipe seam slip casting Composite Bolt body of rod is integrally considered the Grouting Pipe of conventional for first time supporting pipe seam anchor bar and secondary ground grouting and reinforcing or Grouting Pipe anchor pole, overcome existing ground supporting and grouting and reinforcing construction link is many, workload is large, technical matters is more complicated, and conventional pipe seam anchor bar can not use as Grouting Pipe, the shortcoming that conventional pipe seam anchor bar anchored force is lower.After pipe seam slip casting Composite Bolt body of rod once supporting, later-stage secondary ground grouting and reinforcing doubles as Grouting Pipe or Grouting Pipe anchor pole, does not need newly to beat injected hole again, new Grouting Pipe or Grouting Pipe anchor pole are installed in processing, and construction link reduces, technique is simple, workload reduces; And the pipe seam slip casting Composite Bolt body of rod and ground hole wall are consolidated after slip casting, pipe seam slip casting Composite Bolt body of rod anchored force increases further, and rock-reinforcing is effective.The pipe seam slip casting Composite Bolt body of rod is installed in the slightly little boring in aperture or directly squeezes in soil layer, and the anchored force of more conventional pipe seam anchor bar increases, supporting intensity improves;
Accompanying drawing explanation
Figure l is the front view of the pipe seam slip casting Composite Bolt body of rod.
Fig. 2 is the A-A sectional drawing of pipe seam slip casting Composite Bolt body of rod local.
Fig. 3 is the B-B sectional drawing of pipe seam slip casting Composite Bolt body of rod local.
Fig. 4 is the C-C sectional drawing of pipe seam slip casting Composite Bolt body of rod local.
The high-strength thin-walled steel pipe of 1. section local inner concave hollow in figure, 2. hollow steel tube bolt, 3. pulp aperture, 4. sealing material.
Detailed description of the invention
Below in conjunction with drawings and Examples, the present invention is further described.
Figure l is the front view of the pipe seam slip casting Composite Bolt body of rod, and Fig. 2 is the A-A sectional drawing of pipe seam slip casting Composite Bolt body of rod local, and Fig. 3 is the B-B sectional drawing of pipe seam slip casting Composite Bolt body of rod local, and Fig. 4 is the C-C sectional drawing of pipe seam slip casting Composite Bolt body of rod local.
Figure l, Fig. 2, Fig. 3, in Fig. 4, the pipe seam slip casting Composite Bolt body of rod is by the high-strength thin-walled steel pipe of the section local inner concave hollow (1) longitudinally forming inner groovy along total length, and the hollow steel tube bolt (2) to be connected and fixed with the external port of this high-strength thin-walled steel pipe of section local inner concave hollow (1), and the sealing material (4) in the external port section longitudinal fluting of this high-strength thin-walled steel pipe of section local inner concave hollow (1) is formed, this section being close ring local inner concave along the longitudinal high-strength thin-walled steel pipe of the section local inner concave hollow (1) forming inner groovy of total length, the high-strength thin-walled steel pipe of section local inner concave hollow (1) is the conventional pipe seam anchor bar body of rod having breach non-closed annulus compared with section, deformation behavior improves, anchored force increases, the high-strength thin-walled steel pipe of section local inner concave hollow (1) external port has been connected and fixed hollow steel tube bolt (2), hollow steel tube bolt (2) is convenient to be connected peripheral grouting equipment as Grouting Pipe with when nut and later stage grouting and reinforcing for the pallet of skyhook, hollow steel tube bolt (2) is subdivided into again external thread section and pedestal section, the pedestal section of hollow steel tube bolt (2) and the external port of the high-strength thin-walled steel pipe of section local inner concave hollow (1) are connected and fixed, the external thread section section external diameter of hollow steel tube bolt (2), be less than the pedestal section section external diameter of hollow steel tube bolt (2), the rounded step-like transition of this position outer surface, step cutting pattern is convenient to apply to install external force to the high-strength thin-walled steel pipe of section local inner concave hollow (1), the high-strength thin-walled steel pipe of section local inner concave hollow (1) inner section tube wall processes more pulp aperture (3), when the later stage carries out geotechnical engineering grouting and reinforcing, section local inner concave hollow high-strength thin-walled steel pipe (1) the inner end mouth of pipe and the pulp aperture (3) that have inserted ground deep are convenient in slurries infiltration ground crack, grouting serous fluid solidifies rear slurry and the high-strength thin-walled steel pipe of section local inner concave hollow (1) and ground hole wall is consolidated, the anchored force of the high-strength thin-walled steel pipe of section local inner concave hollow (1) increases further, the cross dimensions compared with normal cross dimensions of this section local inner concave hollow high-strength thin-walled steel pipe (1) inner end mouth reduces tapered, be convenient to the high-strength thin-walled steel pipe of section local inner concave hollow (1) be installed in the slightly little boring in aperture or directly squeeze in soil layer, sealing material (4) is had in the external port section longitudinal fluting of the high-strength thin-walled steel pipe of section local inner concave hollow (1), during slip casting, sealing material (4) plays sealing slip casting aperture, prevent the effect that injecting paste material leaks outside.
Claims (1)
1. a pipe seam slip casting Composite Bolt rod device, its technical characteristic is: the pipe seam slip casting Composite Bolt body of rod is by the high-strength thin-walled steel pipe of the section local inner concave hollow (1) longitudinally forming inner groovy along total length, and the hollow steel tube bolt (2) to be connected and fixed with the external port of this high-strength thin-walled steel pipe of section local inner concave hollow (1), and the sealing material (4) in the external port section longitudinal fluting of this high-strength thin-walled steel pipe of section local inner concave hollow (1) is formed, this section being close ring local inner concave along the longitudinal high-strength thin-walled steel pipe of the section local inner concave hollow (1) forming inner groovy of total length, the high-strength thin-walled steel pipe of section local inner concave hollow (1) external port has been connected and fixed hollow steel tube bolt (2), hollow steel tube bolt (2) is subdivided into again external thread section and pedestal section, the pedestal section of hollow steel tube bolt (2) and the external port of the high-strength thin-walled steel pipe of section local inner concave hollow (1) are connected and fixed, the external thread section section external diameter of hollow steel tube bolt (2), be less than the pedestal section section external diameter of hollow steel tube bolt (2), the rounded step-like transition of this position outer surface, the high-strength thin-walled steel pipe of section local inner concave hollow (1) inner section tube wall processes more pulp aperture (3), the cross dimensions compared with normal cross dimensions of this section local inner concave hollow high-strength thin-walled steel pipe (1) inner end mouth reduces tapered, sealing material (4) is had in the external port section longitudinal fluting of the high-strength thin-walled steel pipe of section local inner concave hollow (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410044516.6A CN104805837B (en) | 2014-01-24 | 2014-01-24 | The pipe seam slip casting Composite Bolt body of rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410044516.6A CN104805837B (en) | 2014-01-24 | 2014-01-24 | The pipe seam slip casting Composite Bolt body of rod |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104805837A true CN104805837A (en) | 2015-07-29 |
| CN104805837B CN104805837B (en) | 2017-06-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410044516.6A Expired - Fee Related CN104805837B (en) | 2014-01-24 | 2014-01-24 | The pipe seam slip casting Composite Bolt body of rod |
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| Country | Link |
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| CN (1) | CN104805837B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106555399A (en) * | 2017-01-23 | 2017-04-05 | 贵州正业工程技术投资有限公司 | A kind of carbonate rock area Pulling-Resistant Anchor Rod slip casting drainage arrangement and its construction method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4511289A (en) * | 1981-10-19 | 1985-04-16 | Atlas Copco Aktiebolag | Method of rock bolting and rock bolt |
| CN1771380A (en) * | 2004-01-28 | 2006-05-10 | 电气化学工业株式会社 | Expandable injection bolt and grouting method using same |
| CN201125742Y (en) * | 2007-12-19 | 2008-10-01 | 中国葛洲坝集团股份有限公司 | Expansion sheath type anchor rod |
| WO2010090500A2 (en) * | 2009-02-09 | 2010-08-12 | 주식회사 상신산업 | Expandable rock bolt tube |
-
2014
- 2014-01-24 CN CN201410044516.6A patent/CN104805837B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4511289A (en) * | 1981-10-19 | 1985-04-16 | Atlas Copco Aktiebolag | Method of rock bolting and rock bolt |
| CN1771380A (en) * | 2004-01-28 | 2006-05-10 | 电气化学工业株式会社 | Expandable injection bolt and grouting method using same |
| CN201125742Y (en) * | 2007-12-19 | 2008-10-01 | 中国葛洲坝集团股份有限公司 | Expansion sheath type anchor rod |
| WO2010090500A2 (en) * | 2009-02-09 | 2010-08-12 | 주식회사 상신산업 | Expandable rock bolt tube |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106555399A (en) * | 2017-01-23 | 2017-04-05 | 贵州正业工程技术投资有限公司 | A kind of carbonate rock area Pulling-Resistant Anchor Rod slip casting drainage arrangement and its construction method |
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| Publication number | Publication date |
|---|---|
| CN104805837B (en) | 2017-06-27 |
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Granted publication date: 20170627 Termination date: 20200124 |