CN103850694B - The grouting cable anchor that slip casting both sides, a kind of one side are fastening and grouting method - Google Patents
The grouting cable anchor that slip casting both sides, a kind of one side are fastening and grouting method Download PDFInfo
- Publication number
- CN103850694B CN103850694B CN201410101095.6A CN201410101095A CN103850694B CN 103850694 B CN103850694 B CN 103850694B CN 201410101095 A CN201410101095 A CN 201410101095A CN 103850694 B CN103850694 B CN 103850694B
- Authority
- CN
- China
- Prior art keywords
- grouting
- anchor cable
- slip casting
- anchor
- cable
- 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.)
- Expired - Fee Related
Links
Landscapes
- Piles And Underground Anchors (AREA)
Abstract
The invention discloses the fastening grouting cable anchor in slip casting both sides, a kind of one side and grouting method, it comprises for the anchor cable through country rock, wherein, the two ends of anchor cable are provided with fixed structure, slip casting core pipe and grouting port is provided with in anchor cable, slip casting core pipe is connected with grouting port, the length of slip casting core pipe is 2/3rds of anchor cable length, residue anchor cable is solid, in anchor cable 1/2nd length, place is provided with grout outlet, grout outlet is connected with slip casting core pipe, and slurries inject in country rock from grout outlet, and grouting method.Slurries shutoff wall-rock crack can be utilized, isolated air, prevents country rock weathering, and country rock can be prevented to be soaked in water and to reduce the intensity of country rock own, both possessed the effect of grouting and reinforcing cranny development and loose and soft surrounding rock, increased substantially again the non-deformability of both sides country rock.
Description
Technical field
The present invention relates to the fastening grouting cable anchor in slip casting both sides, a kind of one side and grouting method.
Background technology
Cable bolting adopts to have certain bending flexible steel strand, is anchored at country rock deep in some way by the boring got out in advance, and exposed junction carries out a kind of supporting means of reinforcing to country rock by lockset compression pallet.Traditional grouting cable anchor structure is provided with slip casting core pipe at the center of steel strand, bottom, hole is " the Anchor Agent anchoring section " of not establishing slip casting core pipe, be characterized in that anchoring radius is large, supporting capacity is high, reinforcing scope is wide, and larger pretightning force can be applied, thus can obtain more satisfactory supporting effect.Along with the increasing of extensive mining and mining depth, deep closely adjacent chamber group and alcove passage etc. continues owing to being subject to high-ground stress, weak broken swollen property country rock, working face extraction and country rock the impact that stream becomes for a long time, cause surrounding rock supporting difficulty, affect mine normal production.
Summary of the invention
In view of above-mentioned the deficiencies in the prior art, the grouting cable anchor that a kind of slip casting both sides provided by the invention are fastening and grouting method, both possessed the effect of grouting and reinforcing cranny development and loose and soft surrounding rock, increased substantially again the non-deformability of both sides country rock.
For solving the problems of the technologies described above, the present invention program comprises:
The grouting cable anchor that slip casting both sides, a kind of one side are fastening, it comprises for the anchor cable through country rock, wherein, the two ends of anchor cable are provided with fixed structure, are provided with slip casting core pipe and grouting port in anchor cable, slip casting core pipe is connected with grouting port, the length of slip casting core pipe is 2/3rds of anchor cable length, and residue anchor cable is solid, and in anchor cable 1/2nd length, place is provided with grout outlet, grout outlet is connected with slip casting core pipe, and slurries inject in country rock from grout outlet.
Described grouting cable anchor, wherein, above-mentioned fixed structure comprises pallet, packing ring and rigging, pallet is positioned at inside anchor cable, withstands on country rock for card, and packing ring is arranged on the anchor cable on the left of pallet, rigging is arranged on the anchor cable on the left of packing ring, for lock washer and pallet.
Described grouting cable anchor, wherein, the anchor cable of grouting port one end is provided with stop grouting plug, on the anchor cable of stop grouting plug between pallet and country rock.
Use a grouting method for described grouting cable anchor, it comprises the following steps:
Construction grouting layer: first repair country rock, reject the sprinkler body of cracking, find dangerous cash alive with long handle instrument, then carries out just spray, and just spray thickness is 10mm ~ 50mm, as grouting layer during slip casting;
Beat anchor cable eye: utilize anchor cable rig at alcove side construction anchor cable hole, anchor cable hole runs through both sides country rock and forms anchor cable eye, and the eye position error of anchor cable eye can not more than 50mm, and the eye of anchor cable eye must not be greater than ± 20mm to position;
Anchor cable is installed: grouting cable anchor is loaded the anchor cable hole accomplished fluently in advance, two ends anchor cable protruded length is 150mm ~ 250mm; After grouting cable anchor installs, difference mount fixing structure on the revealed section of anchor cable two ends, tensioning is fixed;
Slip casting: be connected with grouting pump by grouting port, by grouting pump to slip casting in slip casting core pipe, grouting pressure 3MPa ~ 5MPa, breaking surrounding rock to both sides diffusion, is cemented to an entirety after grout cures by slurries in the middle part of country rock.
The grouting cable anchor that slip casting both sides, a kind of one side provided by the invention are fastening and grouting method, slurries shutoff wall-rock crack can be utilized, isolated air, prevent country rock weathering, and country rock can be prevented to be soaked in water and to reduce the intensity of country rock own, both the effect of grouting and reinforcing cranny development and loose and soft surrounding rock had been possessed, increase substantially again the non-deformability of both sides country rock, and the country rock of loose crushing is cemented to entirety by slip casting rear slurry, improve rock mass strength and cohesive strength, angle of internal friction and modulus of elasticity, thus improve rock mass strength; Fastening especially by two ends, effectively can guarantee surrounding rock stability, grouting cable anchor structure of the present invention is simple, and cost is low, dependable performance, and strong to tunnel controllability, easy to operate, easily construct, supporting effect is good, has broad applicability.
Accompanying drawing explanation
Fig. 1 is the structural representation of grouting cable anchor in the present invention.
Detailed description of the invention
The invention provides the fastening grouting cable anchor in slip casting both sides, a kind of one side and grouting method, for making object of the present invention, technical scheme and effect clearly, clearly, the present invention is described in more detail below.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
The invention provides the fastening grouting cable anchor in slip casting both sides, a kind of one side and grouting method, as shown in Figure 1, it comprises for the anchor cable 1 through country rock 6, wherein, the two ends of anchor cable 1 are provided with fixed structure, be provided with slip casting core pipe 2 and grouting port 3 in anchor cable 1, grouting port 3 can arrange grouting port nut 4, be used to open or close grouting port 3.Slip casting core pipe 2 is connected with grouting port 3, the length of slip casting core pipe 2 is 2/3rds of anchor cable 1 length, and residue anchor cable 1 is solid, and in anchor cable 1/1st two length, place is provided with grout outlet 5, grout outlet 5 is connected with slip casting core pipe 2, and slurries inject in country rock 6 from grout outlet 5.
In another preferred embodiment of the present invention, above-mentioned fixed structure comprises pallet 7, packing ring 8 and rigging 9, pallet 7 is positioned at inside anchor cable 1, country rock 6 is withstood on for card, packing ring 8 is arranged on the anchor cable 1 on the left of pallet 7, and rigging 9 is arranged on the anchor cable 1 on the left of packing ring 8, for lock washer 8 and pallet 7, at rigging 9 with under the chucking power of country rock 6, firmly fix the position of anchor cable 1.
Further, the anchor cable 1 of grouting port 3 one end is provided with stop grouting plug 10, on the anchor cable 1 of stop grouting plug 10 between pallet 7 and country rock 6, the gap between blocking anchor cable 1 and country rock 6, makes slurries better be dispersed in country rock 6.
Present invention also offers a kind of grouting method using described grouting cable anchor, it comprises the following steps:
Construction grouting layer: first repair country rock before construction grouting cable anchor, reject the sprinkler body of cracking, find dangerous cash alive with long handle instrument, then carries out just spray, and just spray thickness is 10mm ~ 50mm, as grouting layer during slip casting;
Beat anchor cable eye: utilize anchor cable rig at alcove side construction anchor cable hole, anchor cable hole runs through both sides country rock and forms anchor cable eye, and the eye position error of anchor cable eye can not more than 50mm, and the eye of anchor cable eye must not be greater than ± 20mm to position; Anchor cable hole runs through country rock 6, beats in anchor cable construction process will reduce error as far as possible
Anchor cable is installed: grouting cable anchor is loaded the anchor cable hole accomplished fluently in advance, two ends anchor cable protruded length is 150mm ~ 250mm; After grouting cable anchor installs, difference mount fixing structure on the revealed section of anchor cable two ends, tensioning is fixed;
Slip casting: slip casting 3 be connected with grouting pump, by grouting pump to slip casting in slip casting core pipe, grouting pressure 3MPa ~ 5MPa, breaking surrounding rock 6 to both sides diffusion, is cemented to an entirety after grout cures by slurries in the middle part of country rock 6.
Certainly; more than illustrate and be only preferred embodiment of the present invention; the present invention is not limited to enumerate above-described embodiment; should be noted that; any those of ordinary skill in the art are under the instruction of this manual; made all equivalently to substitute, obvious variant, within the essential scope all dropping on this manual, protection of the present invention ought to be subject to.
Claims (1)
1. one kind uses the grouting method of grouting cable anchor, grouting cable anchor comprises for the anchor cable through country rock, it is characterized in that, the two ends of anchor cable are provided with fixed structure, are provided with slip casting core pipe and grouting port in anchor cable, slip casting core pipe is connected with grouting port, the length of slip casting core pipe is 2/3rds of anchor cable length, and residue anchor cable is solid, and in anchor cable 1/2nd length, place is provided with grout outlet, grout outlet is connected with slip casting core pipe, and slurries inject in country rock from grout outlet;
Above-mentioned fixed structure comprises pallet, packing ring and rigging, and pallet is positioned at inside anchor cable, withstands on country rock for card, and packing ring is arranged on the anchor cable on the left of pallet, and rigging is arranged on the anchor cable on the left of packing ring, for lock washer and pallet;
The anchor cable of grouting port one end is provided with stop grouting plug, on the anchor cable of stop grouting plug between pallet and country rock;
Grouting method comprises the following steps:
Construction grouting layer: first repair country rock, reject the sprinkler body of cracking, find dangerous cash alive with long handle instrument, then carries out just spray, and just spray thickness is 10mm ~ 50mm, as grouting layer during slip casting;
Beat anchor cable eye: utilize anchor cable rig at alcove side construction anchor cable hole, anchor cable hole runs through both sides country rock and forms anchor cable eye, and the eye position error of anchor cable eye can not more than 50mm, and the eye of anchor cable eye must not be greater than ± 20mm to position;
Anchor cable is installed: grouting cable anchor is loaded the anchor cable hole accomplished fluently in advance, two ends anchor cable protruded length is 150mm ~ 250mm; After grouting cable anchor installs, difference mount fixing structure on the revealed section of anchor cable two ends, tensioning is fixed;
Slip casting: be connected with grouting pump by grouting port, by grouting pump to slip casting in slip casting core pipe, grouting pressure 3MPa ~ 5MPa, breaking surrounding rock to both sides diffusion, is cemented to an entirety after grout cures by slurries in the middle part of country rock.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410101095.6A CN103850694B (en) | 2014-03-19 | 2014-03-19 | The grouting cable anchor that slip casting both sides, a kind of one side are fastening and grouting method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410101095.6A CN103850694B (en) | 2014-03-19 | 2014-03-19 | The grouting cable anchor that slip casting both sides, a kind of one side are fastening and grouting method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103850694A CN103850694A (en) | 2014-06-11 |
| CN103850694B true CN103850694B (en) | 2016-04-06 |
Family
ID=50858787
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410101095.6A Expired - Fee Related CN103850694B (en) | 2014-03-19 | 2014-03-19 | The grouting cable anchor that slip casting both sides, a kind of one side are fastening and grouting method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103850694B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107575244A (en) * | 2017-07-12 | 2018-01-12 | 临沂大学 | A kind of deep closely pump house surrounding rock of chamber supporting grouting method |
| CN110094216B (en) * | 2019-05-31 | 2024-05-03 | 中铁第四勘察设计院集团有限公司 | Separated tunnel stratum compensation grouting system |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0089656A2 (en) * | 1982-03-24 | 1983-09-28 | International INTEC Company Establishment | Injection anchorages to be put in predrilled holes |
| CN201121521Y (en) * | 2007-11-30 | 2008-09-24 | 中国矿业大学 | Opposite pull anchor wire |
| CN201982124U (en) * | 2011-01-18 | 2011-09-21 | 李文惠 | Improved grouting anchor rope |
| CN103016034A (en) * | 2012-11-03 | 2013-04-03 | 孟钧 | Mining hollow grouting anchor cable |
| CN103244141A (en) * | 2013-05-17 | 2013-08-14 | 山东科技大学 | Super close overlapping roadway reinforcing support method |
| CN103557012A (en) * | 2013-11-19 | 2014-02-05 | 河南理工大学 | Large deformation tunnel surrounding rock grouting fastening bearing structure and construction method |
| CN103615258A (en) * | 2013-12-06 | 2014-03-05 | 中国矿业大学(北京) | Supporting structure and method of middle rock pillar of roadway junction point |
| CN203835420U (en) * | 2014-03-19 | 2014-09-17 | 山东科技大学 | Grouting anchor cable carrying out grouting on one side and fastening on two sides |
-
2014
- 2014-03-19 CN CN201410101095.6A patent/CN103850694B/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0089656A2 (en) * | 1982-03-24 | 1983-09-28 | International INTEC Company Establishment | Injection anchorages to be put in predrilled holes |
| CN201121521Y (en) * | 2007-11-30 | 2008-09-24 | 中国矿业大学 | Opposite pull anchor wire |
| CN201982124U (en) * | 2011-01-18 | 2011-09-21 | 李文惠 | Improved grouting anchor rope |
| CN103016034A (en) * | 2012-11-03 | 2013-04-03 | 孟钧 | Mining hollow grouting anchor cable |
| CN103244141A (en) * | 2013-05-17 | 2013-08-14 | 山东科技大学 | Super close overlapping roadway reinforcing support method |
| CN103557012A (en) * | 2013-11-19 | 2014-02-05 | 河南理工大学 | Large deformation tunnel surrounding rock grouting fastening bearing structure and construction method |
| CN103615258A (en) * | 2013-12-06 | 2014-03-05 | 中国矿业大学(北京) | Supporting structure and method of middle rock pillar of roadway junction point |
| CN203835420U (en) * | 2014-03-19 | 2014-09-17 | 山东科技大学 | Grouting anchor cable carrying out grouting on one side and fastening on two sides |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103850694A (en) | 2014-06-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105569049B (en) | High artesian deep foundation pit support anchor rod construction method | |
| CN107130979A (en) | A kind of shield sky pushes through the section of jurisdiction float Structure and construction method of Tunneling by mining method | |
| CN105604593B (en) | A kind of three stages anchoring Combined hollow grouted anchor bar | |
| CN104895072B (en) | A kind of prestress anchorage cable and prestress anchorage cable one-pass molding construction method | |
| CN102900446B (en) | Step-by-step strengthening method by anchoring and forming hole in downward sleeve of cracking medium | |
| CN103711507B (en) | A kind of many steel strand wires combination supporting device controls the method for big relaxation zone roadway deformation | |
| CN104747216B (en) | Ultra-soft cracked coal and rock mass drill and grouting integrated fractional grouting method | |
| CN103089276B (en) | Deep-shallow hole and high-low pressure coupling grouting technology | |
| CN203742612U (en) | Rapid construction supporting system for deep coal mine roadway with weak and broken surrounding rock | |
| CN105422128A (en) | Method for preventing goaf gas leakage in deep shaft gob-side entry driving | |
| CN105201514A (en) | Water-bearing rock stratum borehole wall structure and construction method | |
| CN102635327A (en) | Grouting method and system of cracked coal rock mass | |
| CN205025479U (en) | Administer bottom plate support system of soft rock tunnel pucking | |
| CN104653206A (en) | Prestress full-length anchoring anchor rope construction method based on common anchor rope construction | |
| CN107165661A (en) | A kind of high-ground stress weak surrounding rock large deformation tunnel overlength enlarged footing anchor cable construction method | |
| CN204456100U (en) | A kind of part adhesive type prestress anchorage cable with outer anchoring section | |
| CN104405424A (en) | Full-length-anchoring anchor rod and anchoring method | |
| CN103850694B (en) | The grouting cable anchor that slip casting both sides, a kind of one side are fastening and grouting method | |
| CN205117379U (en) | Let pressure stock from advancing formula large deformation | |
| CN203835420U (en) | Grouting anchor cable carrying out grouting on one side and fastening on two sides | |
| CN103147777B (en) | Pumping paste prestress full bolting anchor rod/cable supporting method | |
| CN107023299B (en) | One kind is neighbouring and sets tunnel and construction method | |
| CN205189918U (en) | Intumescent cavity slip casting stock | |
| CN204327134U (en) | A kind of prestressing force balance anchor cable | |
| CN204436425U (en) | A kind of two fluid grouting mixing arrangement |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160406 Termination date: 20170319 |