CN103883339B - A kind of cable bolting method repeating Shi Hanzhang - Google Patents
A kind of cable bolting method repeating Shi Hanzhang Download PDFInfo
- Publication number
- CN103883339B CN103883339B CN201410144433.4A CN201410144433A CN103883339B CN 103883339 B CN103883339 B CN 103883339B CN 201410144433 A CN201410144433 A CN 201410144433A CN 103883339 B CN103883339 B CN 103883339B
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- CN
- China
- Prior art keywords
- anchor cable
- anchor
- sleeve pipe
- anchored
- shi hanzhang
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- 238000007569 slipcasting Methods 0.000 claims abstract description 21
- 238000007789 sealing Methods 0.000 claims abstract description 12
- 238000009434 installation Methods 0.000 claims abstract description 9
- 238000004519 manufacturing process Methods 0.000 claims abstract description 5
- 239000002002 slurry Substances 0.000 claims description 11
- 238000004873 anchoring Methods 0.000 claims description 9
- 239000004568 cement Substances 0.000 claims description 4
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminum Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 229920000915 polyvinyl chloride Polymers 0.000 claims description 3
- 239000011440 grout Substances 0.000 claims description 2
- 239000011435 rock Substances 0.000 description 12
- 230000000694 effects Effects 0.000 description 5
- 238000005065 mining Methods 0.000 description 3
- 210000004911 Serous fluid Anatomy 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 239000003245 coal Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000002965 rope Substances 0.000 description 2
- 210000001847 Jaw Anatomy 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229920000591 gum Polymers 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000003014 reinforcing Effects 0.000 description 1
- 238000010125 resin casting Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D20/00—Setting anchoring-bolts
- E21D20/02—Setting anchoring-bolts with provisions for grouting
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D21/00—Anchoring-bolts for roof, floor in galleries or longwall working, or shaft-lining protection
Abstract
The invention discloses a kind of cable bolting method repeating Shi Hanzhang, anchor cable comprises anchor cable body, anchored end anchor device, supporting plate, lockset, described anchor cable body is positioned at boring outer end and is provided with supporting plate and lockset successively, it is characterized in that: in anchor cable boring, outer end place is also provided with a T-shaped pressure pipe, supporting plate is pressed against on the wing plate of T-shaped pressure pipe, at anchor cable body, described anchored end anchor device is set by boring the inner, the anchor cable body of a distance, described anchored end anchor device top arranges a sleeve pipe, an annular space is formed between this sleeve pipe and anchor cable body, sleeve pipe is provided with flexible stop grouting plug near one end of described anchored end anchor device, after anchor cable installation, one end sealing that described T-shaped pressure pipe is positioned at boring is resisted against on described sleeve pipe, described anchored end anchor device can provide enough anchored force, repetition Shi Hanzhang is carried out to meet anchor cable.Mainly there is fabrication and installation anchor cable, first slip casting, secondary grouting, repetition Shi Hanzhang step.Cable bolting method of the present invention can have a repeated Shi Hanzhang of the anchored end of sufficient intensity at not disturbance total length slip casting consolidated structure.
Description
Technical field
The present invention relates to mine surrounding rock supporting field, particularly a kind of mine laneway repeats the cable bolting method of Shi Hanzhang.
Background technology
Mine surrounding rock supporting is subterranean resource exploitation extremely important, the essential aspect lacked, field, coal mining Frequent Accidents in recent years, the accidents such as landslide, roof fall are continuous, to be that technical measures are not in place cause these accidents, effective technical measures or technical measures are not taked effectively not to perform, and pit mining surrounding rock supporting is enough, the accident that the country rocks such as landslide produce can be avoided.In prior art, reinforce adjoining rock Main Means is bolting and rope support, grouting support, combined support with bolt-net-cable, hydraulic support stand, column supporting, reserved coal pillar or ore pillar, gob side entry retaining etc., Anchor cable-rod supporting is the general supporting means of this area, so those skilled in the art are always continuous in improvement Anchor cable-rod supporting performance, improve supporting effect, arranging prestress anchorage cable bolt support is a major technique direction.
Current China mine enters deep mining, surrounding rock supporting is even more important in recovery process, but at enforcement anchor pole, during cable bolting, for increasing anchor pole, the supporting effect of anchor cable, often one end slip casting of anchor pole rope is fixed on country rock deep, then full-length prestress is applied, but often need first slip casting anchoring anchor cable boom end in prior art during Shi Hanzhang, then first Shi Hanzhang, and then implement total length slip casting, finally carry out outer end mounting plate Shi Hanzhang, like this can repeatedly disturbance surrounding rock supporting, and the injection slurry that solidified and anchor cable bar can be made to produce loosen, destroy slip casting slurry consolidated structure, bolt-grouting support effect structure is unsatisfactory.
Summary of the invention
For solving the technical problem that prior art exists, the object of the invention is to provide a kind ofly has the supporting method of the anchor cable of the repeated Shi Hanzhang of the anchored end of sufficient intensity at not disturbance total length slip casting consolidated structure.
For solving the problems of the technologies described above, the present invention adopts following technical scheme:
Repeat a cable bolting method for Shi Hanzhang, it comprises the steps:
1) fabrication and installation anchor cable: the anchor cable that can repeat Shi Hanzhang comprises anchor cable body, anchored end anchor device, supporting plate, lockset, described anchor cable body is positioned at boring outer end and is provided with supporting plate and lockset successively, in anchor cable boring, outer end place is also provided with a T-shaped pressure pipe, supporting plate is pressed against on the wing plate of T-shaped pressure pipe, at anchor cable body, described anchored end anchor device is set by boring the inner, the anchor cable body of a distance, described anchored end anchor device top arranges a sleeve pipe, an annular space is formed between this sleeve pipe and anchor cable body, sleeve pipe is provided with flexible stop grouting plug near one end of described anchored end anchor device, when anchor cable is finally in installation state, one end sealing that described T-shaped pressure pipe is positioned at boring is resisted against on described sleeve pipe,
2) anchor end of anchorage cable of slip casting anchoring first: in above-mentioned steps 1) after fabrication and installation are good, drive anchored end anchor device in running order, carry out slip casting anchoring by Grouting Pipe to anchor cable body bottom portion, described anchored end anchor device and grout cures one, for anchor cable improves enough anchored force;
3) secondary grouting: after wait anchored end slurries fully solidify, continue to carry out total length slip casting to the annular space between sleeve pipe and drill hole wall, carry out full length fastening;
4) Shi Hanzhang is repeated: after above-mentioned steps is implemented, repeatedly Shi Hanzhang can be repeated period in different supporting by lockset and draw-off gear in the outer end of anchor cable body, can not produce the injecting cement paste applied and destroy and disturbance, prevent supporting from loosening or lost efficacy, effectively safeguarding supporting and protection structure body.
Described anchored end anchor device in step 1) comprises the first fixed block, sliding shoe, the hook wing, the first support bar, first fixed block be fixed on described anchor cable body deeply hole in the inner, sliding shoe is slidably arranged on the anchor cable body body of rod between sleeve pipe and the first fixed block, and the first support bar and the first fixed block, the hook wing and movable block, the first support bar and the hook wing all carry out being articulated and connected in relative rotation.
Described anchored end anchor device in step 1) also comprises the second fixed block and the second support bar, second fixed block is close first fixed block place between the first fixed block and sliding shoe, second support bar one end is hingedly connected on the pin joint of the first support bar and the hook wing, and the other end is hingedly connected on the second fixed block.
Step 2) described in driving anchored end anchor device in running orderly to comprise: by applying jacking force to pressure pipe and/or making its lower end contact with sliding shoe by drawing anchor cable body, the hook wing and the first support bar is driven to open, the crotch of the hook wing is " U " shape to hell direction, when the hook wing is in running order against drill hole wall, slip casting is carried out to the anchored end of anchor cable body, after slurry solidifies, the hook wing and the first support bar will firmly be anchored at boring inner end, provide enough anchored force.
Step 2) described in driving anchored end anchor device in running orderly to comprise: by applying jacking force to pressure pipe and/or making its lower end contact with sliding shoe by drawing anchor cable body, the hook wing, the first support bar and the second support bar is driven to open, the crotch of the hook wing is " U " shape to hell direction, when the hook wing is in running order against drill hole wall, slip casting is carried out to the anchored end of anchor cable body, after slurry solidifies, the hook wing, the first support bar and the second support bar will firmly be anchored at boring inner end, provide enough anchored force.
Described flexible stop grouting plug is flexible sealing rubber, and described sleeve pipe is pvc pipe or aluminum pipe.
Described T-shaped pressure pipe and sleeve pipe abutment end are provided with flanging outside managing, and described flanging is provided with the annular groove docked with sleeve pipe, is provided with sealing ring in groove, and pressure pipe is connected with bobbin seal.
Also be provided with a sealing mat between shown T-shaped pressure pipe and boring country rock wall, make grouting serous fluid to ooze out outside boring in a large number, play plugging action.
The invention has the beneficial effects as follows: one does not carry out disturbance destruction to total length grouting and reinforcing body when being and anchor cable can being made to repeat Shi Hanzhang by sleeve pipe, enable like this solidified slurry fully and the country rock bodily form integrally, integrally bear pressure from surrounding rock; One is that anchor end of anchorage cable adopts the scalable hook wing, both in having facilitated anchor cable deeply to hole, simultaneously when carrying out resin or slip casting anchoring, tightly be anchored at foot of hole, for anchor cable repeatedly Shi Hanzhang enough anchored force are provided, and anchored end structure is simple, contribute to anchor cable installation deeply boring, simultaneously can abundant anchoring anchor cable.The enough strong anchored force that anchored end anchor device provides and anchor cable are implemented to repeat prestressing force and are complemented each other, and do not have enough anchored force, anchored end will be subject to heavy damage, be difficult to effectively form prestress anchorage cable.
Accompanying drawing explanation
Fig. 1: Shi Hanzhang anchor cable structure schematic diagram can be repeated.
Fig. 2: T-shaped pressure pipe structural representation.
Fig. 3: anchored end anchor device modified node method schematic diagram.
Detailed description of the invention
Embodiment 1: shown in Fig. 1-2, anchor cable of the present invention is a kind of prestressing anchor support method that can repeat to apply to need in not disturbance injecting cement paste situation, described anchor cable comprises: anchor cable body 1, anchored end anchor device, sleeve pipe 6, pressure pipe 7, supporting plate 8, lockset 9, stop grouting plug 10, described anchored end anchor device comprises the first fixed block 2, sliding shoe 3, the hook wing 5, first support bar 4, first fixed block 2 is fixed on the inner in the deep boring of anchor cable body 1, sliding shoe 3 is slidably arranged on anchor cable body 1 body of rod between sleeve pipe 6 and the first fixed block 2, sleeve pipe 6 is arranged on a distance, movable block 3 upper end, to have enough sliding extension distances when movable block 3 is in anchor cable is deeply holed, be convenient in anchor cable deeply holes.As shown in Figure 1, the first support bar 4 and the first fixed block 2, the hook wing 5 all carry out relatively turnable being articulated and connected with movable block 3, first support bar 4 and the hook wing 5.Sleeve pipe 6 is provided with stop grouting plug 10 near sliding shoe 3 one end, prevent the slurries when bored grouting from entering in sleeve pipe 6, pressure pipe 7 is pressed against sleeve pipe 6 upper end, by applying jacking force to pressure pipe 7 or making sleeve pipe 6 lower end contact with sliding shoe 3 by primary drawing anchor cable body 1, the hook wing 5 and the first support bar 4 is driven to open, the crotch of the hook wing 5 is " U " shape to hell direction, when the hook wing 5 is against drill hole wall, first slip casting is carried out to the anchored end of anchor cable body 1, after slurry solidifies, the hook wing 5 and the first support bar 4 will firmly be anchored at boring inner end, enough anchored force are provided.
After wait anchored end slurries enough solidify, continue to carry out total length slip casting to the annular space between sleeve pipe 6 and drill hole wall, by sleeve pipe 6, pressure pipe 7 and the tightly anchoring of boring country rock, due to the extension of pressure pipe 7 outside the oriented hole of drill end mouthpiece, according to needing at the extension of pressure pipe 7 and sealing mat 11 to be added between wing plate and wall, make grouting serous fluid to ooze out outside boring in a large number like this, play plugging action, obtain better slip casting effect.
After above-mentioned all slip casting terminates, repeatedly repeat Shi Hanzhang in the outer end of anchor cable body 1 by lockset 8 and draw-off gear, can not produce the injecting cement paste applied like this and destroy and disturbance, effectively safeguard supporting and protection structure body.
Stop grouting plug 10 adopts flexible sealing block, such as, adopt caulking gum, and such anchor cable is when repeating Shi Hanzhang, and stretcher strain amount is unlikely to stop grouting plug 10 to destroy, and it allows anchor cable body 1 to carry out longitudinal stretching.
Sleeve pipe 6 can adopt pvc pipe, aluminum pipe or other lightweight tubing; Pressure pipe 7 is teeprofiles, and pipe thickness is more bigger than sleeve pipe 6, and pressure pipe 7 can arrange flanging with sleeve pipe 6 contact jaw outside managing, and flanging is provided with the annular groove docked with sleeve pipe, is provided with sealing ring in groove, and pressure pipe is connected with bobbin seal.Sealing mat 11 is circular middle through holes with the diameter substantially equal with pressure pipe 7 external diameter.
Embodiment 2: shown in composition graphs 3, improve further the anchored end anchor device in embodiment 1, other parts are identical with embodiment 1.Described anchored end anchor device is except comprising the first fixed block 2, sliding shoe 3, the hook wing 5, first support bar 4, also comprise the second fixed block 13 and the second support bar 12, second support bar 12 one end is hingedly connected to the first support bar 4 with on the pin joint of the hook wing 5, and the other end is hingedly connected on the second fixed block 13.By adding the second support bar 12 and the second fixed block 13, making the hook wing 5 can have enough support forces makes the hook wing 5 against hole wall, meanwhile, when anchored end slip casting anchoring, the second support bar 12, second fixed block 13 also provides stronger with the anchored force combined together that is slurries.
Claims (3)
1. repeat a cable bolting method for Shi Hanzhang, it comprises the steps:
1) fabrication and installation anchor cable: the anchor cable that can repeat Shi Hanzhang comprises anchor cable body (1), anchored end anchor device, supporting plate (8), lockset (9), described anchor cable body (1) is positioned at boring outer end and sets gradually described supporting plate and lockset, in anchor cable boring, outer end place is also provided with a T-shaped pressure pipe (7), supporting plate is pressed against on the wing plate of T-shaped pressure pipe, be positioned at boring the inner at anchor cable body and described anchored end anchor device is set, the anchor cable body of a distance, described anchored end anchor device top arranges a sleeve pipe (6), an annular space is formed between this sleeve pipe and anchor cable body, sleeve pipe is provided with flexible stop grouting plug (10) near one end of described anchored end anchor device, when anchor cable is finally in installation state, one end sealing that described T-shaped pressure pipe is positioned at boring is resisted against on described sleeve pipe,
2) anchor end of anchorage cable described in slip casting anchoring first: in above-mentioned steps 1) after fabrication and installation are good, drive anchored end anchor device in running order, by Grouting Pipe, slip casting anchoring is carried out to anchor cable body bottom portion, described anchored end anchor device and grout cures are integrated, for anchor cable provides enough anchored force;
3) secondary grouting: after wait anchored end slurries fully solidify, continue to carry out total length slip casting to the annular space between sleeve pipe (6) and drill hole wall, carry out full length fastening;
4) Shi Hanzhang is repeated: after above-mentioned steps is implemented, repeatedly Shi Hanzhang can be repeated period in different supporting by lockset (9) and draw-off gear in the outer end of anchor cable body (1), it can not produce the injecting cement paste applied and destroy and disturbance, prevent supporting from loosening or lost efficacy, effectively safeguarding supporting and protection structure body.
2. the cable bolting method repeating Shi Hanzhang as claimed in claim 1, it is characterized in that: described flexible stop grouting plug is flexible sealing rubber, described sleeve pipe is pvc pipe or aluminum pipe.
3. one kind is repeated the cable bolting method of Shi Hanzhang as claimed in claim 1, it is characterized in that: described T-shaped pressure pipe and sleeve pipe abutment end are provided with flanging outside managing, described flanging is provided with the annular groove docked with sleeve pipe, is provided with sealing ring in groove, and T-shaped pressure pipe is connected with bobbin seal.
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410144433.4A CN103883339B (en) | 2014-04-11 | 2014-04-11 | A kind of cable bolting method repeating Shi Hanzhang |
| CN201610022872.7A CN105649663B (en) | 2014-04-11 | 2014-04-11 | One kind, which has, to be repeated to apply prestressed cable bolting method |
| CN201610022873.1A CN105673054B (en) | 2014-04-11 | 2014-04-11 | A kind of repetition applies the method for protecting support of prestressed anchor cable |
| CN201610022874.6A CN105507929B (en) | 2014-04-11 | 2014-04-11 | A kind of method that repetition applies prestressed cable bolting |
| CN201610022871.2A CN105626109B (en) | 2014-04-11 | 2014-04-11 | It is a kind of that there is the method for repeating to apply prestressed cable bolting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410144433.4A CN103883339B (en) | 2014-04-11 | 2014-04-11 | A kind of cable bolting method repeating Shi Hanzhang |
Related Child Applications (4)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610022871.2A Division CN105626109B (en) | 2014-04-11 | 2014-04-11 | It is a kind of that there is the method for repeating to apply prestressed cable bolting |
| CN201610022873.1A Division CN105673054B (en) | 2014-04-11 | 2014-04-11 | A kind of repetition applies the method for protecting support of prestressed anchor cable |
| CN201610022872.7A Division CN105649663B (en) | 2014-04-11 | 2014-04-11 | One kind, which has, to be repeated to apply prestressed cable bolting method |
| CN201610022874.6A Division CN105507929B (en) | 2014-04-11 | 2014-04-11 | A kind of method that repetition applies prestressed cable bolting |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103883339A CN103883339A (en) | 2014-06-25 |
| CN103883339B true CN103883339B (en) | 2016-03-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610022874.6A Active CN105507929B (en) | 2014-04-11 | 2014-04-11 | A kind of method that repetition applies prestressed cable bolting |
| CN201410144433.4A Active CN103883339B (en) | 2014-04-11 | 2014-04-11 | A kind of cable bolting method repeating Shi Hanzhang |
| CN201610022871.2A Active CN105626109B (en) | 2014-04-11 | 2014-04-11 | It is a kind of that there is the method for repeating to apply prestressed cable bolting |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201610022874.6A Active CN105507929B (en) | 2014-04-11 | 2014-04-11 | A kind of method that repetition applies prestressed cable bolting |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610022871.2A Active CN105626109B (en) | 2014-04-11 | 2014-04-11 | It is a kind of that there is the method for repeating to apply prestressed cable bolting |
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| CN (3) | CN105507929B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106638625B (en) * | 2016-11-02 | 2018-08-17 | 中国十七冶集团有限公司 | After a kind of failure of prestressd anchor cable can tensioning again construction method |
| CN108756973B (en) * | 2018-08-08 | 2023-09-08 | 中国矿业大学(北京) | Split full-length anchoring flexible grouting anchor rod and grouting anchoring method |
| CN109235455A (en) * | 2018-10-31 | 2019-01-18 | 中国三冶集团有限公司 | A kind of double anchors expansion self-locking devices of soil anchor |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN105626109B (en) | 2017-09-15 |
| CN105626109A (en) | 2016-06-01 |
| CN105507929A (en) | 2016-04-20 |
| CN105507929B (en) | 2017-09-01 |
| CN103883339A (en) | 2014-06-25 |
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Effective date of registration: 20201229 Address after: 224005 building 1-2 (7), 266 Xinye Road, Yancheng City, Jiangsu Province Patentee after: JIANGSU WANHE COATING MACHINE Co.,Ltd. Address before: No. 159, Daijia village, Xinxin street, Kecheng District, Quzhou green industry cluster district, Quzhou City, Zhejiang Province Patentee before: QUZHOU YOUDE INDUSTRIAL DESIGN Co.,Ltd. |
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