CN102367736A - Full-length blocking of drilling free sections of anchor rod and anchor rope by using polyurethane foamed bags - Google Patents
Full-length blocking of drilling free sections of anchor rod and anchor rope by using polyurethane foamed bags Download PDFInfo
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- CN102367736A CN102367736A CN2011102217160A CN201110221716A CN102367736A CN 102367736 A CN102367736 A CN 102367736A CN 2011102217160 A CN2011102217160 A CN 2011102217160A CN 201110221716 A CN201110221716 A CN 201110221716A CN 102367736 A CN102367736 A CN 102367736A
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- anchor
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- anchor cable
- polyurethane foam
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Abstract
The invention relates to full-length blocking of the drilling free sections of an anchor rod and an anchor rope by using polyurethane foamed bags, which relates to means and methods for full-length anchoring and blocking of drilling of an anchor rod and an anchor rope underground coal mines. In order to overcome the defects of the existing anti-corrosion means and methods for the anchor rod and the anchor rope, the invention provides a means and a method for carrying out full-length blocking on the drilling free sections of the anchor rod and the anchor rope which are simple to operate, so as to prevent an anchor rod body and an anchor rope body from corroding. Firstly, the polyurethane foamed bags are forwardly bound on the free section of the anchor rod body or the free section of the anchor rope body by using rubber bands; then, isolation middle seals of the polyurethane foamed bags are burst through in a manual manner, further, materials in the bags are sufficiently mixed and then rotate into a drilling hole along with the anchor rod or the anchor rope. With the adoption of the means and the method provided by the invention, the full-length blocking of the drilling free sections of the anchor rod and the anchor rope can be realized, so as to achieve the aim of effectively supporting enclosing rocks of a lane cave. The means and the method are mainly applied to the blocking operations of the underground coal mines, underground works, highways, dam bodies and the like.
Description
Affiliated technical field
The present invention relates to the means and the method for full length fastening and shutoff anchor pole and the free section of anchor cable boring under a kind of coal mine,, stably safeguard lane cave country rock to prevent anchor bar body and the corrosion of anchor cable body and to break inefficacy.Be mainly used under the coal mine, anchoring shutoff operation such as underground construction, highway, dam body.
Background technology
Using anchor pole and anchor cable that lane cave country rock is carried out anchoring support under the coal mine is necessary means.With anchor bar body or anchor cable body and lane cave country rock borehole wall anchoring bond, form anchoring section through the anchoring agent.But because the anchoring agent can't be accomplished full length fastening, longer not anchorage part has just formed free section in boring.The anchor bar body and the very easily corrosion of anchor cable body of free section, intensity reduces, so that loses efficacy, thereby has lost the maintenance to lane cave country rocks such as top boards, and consequence is serious.Many factors such as amount of flow of oxidation-reduction potential, water content, salt content, pH value, organic content, the oxygen all corrosion with anchor bar body, anchor cable body are relevant.Although adopted multiple means and method both at home and abroad, the effect of its anti-corrosion is undesirable.Known protection anchor pole, the means of anchor cable corrosion and method have following several kinds: (1) stopping off.According to national standard, paint ingredient and coating layer thickness etc. all there is strict demand.No matter that still to be cost be used under the coal mine its practicality is neither desirable.(2) use plastic pipe sleeve or antirust sleeve.This type of antirust sleeve very easily damages thereby does not have and desires to reach effect during underground work.(3) in boring, inject cement mortar.Clumsy and the consumption worker consuming time of this kind technology, main is that cement mortar can form the crack, does not have protective action.(4) injection ring epoxy resins in boring.The same consumption worker consuming time of this kind method, the waste material, cost is also high.
Summary of the invention
In order to overcome the deficiency of existing anchor pole and anchor cable anti-corrosion means and method; The present invention provides a kind of use polyurethane foam bag total length shutoff anchor pole simple to operate and the method for the free section of anchor cable boring; Do not suffer corrosion with protection anchor bar body and anchor cable body, thereby reach the purpose of effective support lane cave country rock.
The technical solution adopted for the present invention to solve the technical problems is: forward the polyurethane foam bag is twined along anchor bar body or anchor cable body with adhesive tape and tie up on the free section of anchor bar body or anchor cable body.50-70cm place below anchoring section whenever twines at a distance from about one meter and ties up one bag.Twining the method for tying up is: be trapped among an end of polyurethane foam bag ringwise on anchor bar body or the anchor cable body earlier, tie up about 3cm place to the top of polyurethane foam bag again with adhesive tape around twining.Tie, do not come off when making it with anchor pole or anchor cable hand-hole and rotation.Do circumference whipping along with anchor pole, rotating up of anchor cable for fear of the polyurethane foam bag in that boring is outer, need tie the bottom of polyurethane foam bag on anchor pole, anchor cable with it with adhesive tape equally.Next step, both hands are held and are held the polyurethane foam bag, make in the isolation of bag seal and be between two hands, and two hands are slightly firmly held to hold to wash open in the isolation and are sealed, and the interior two types of materials of bag just mix.Two hands are held fast in succession successively respectively and are held, and two types of materials are fully mixed in bag.Next be anchor pole or anchor cable spiral hand-hole.Anchoring agent is in short-term solidified.In the free section, the mass expanded in the polyurethane foam bag, and with the bag spalling, material overflows, and is full of the free section of boring, the shutoff of boring full length fastening just can realize.Anchor pole or anchor cable might scratch bag when taking bag rotation hand-hole, do not influence anchoring and shutoff quality.It may be noted that width, the length of polyurethane foam bag, what and material formula of charging all have certain requirement, should be complementary, guarantee anchoring shutoff length and anchoring shutoff quality again with anchor pole, anchor cable bore diameter.
Explain: polyurethane foam bag system involved in the present invention " the on-the-spot polyurethane foam bag of the hand " (patent No.: ZL200620118135.9) with " a kind of sack that is used for on-the-spot synthetic mining the polyurethane foam " (patent No.: ZL201020248940.X)
The invention has the beneficial effects as follows: the present invention can carry out the total length shutoff to anchor pole and the free section of anchor cable boring effectively; The corrosion of free section anchor bar body or anchor cable body in both having prevented to hole; Can increase bond-anchorage power to a great extent again; Superperformance with full length fastening, and do not influence the normal operation that anchor shaft anchor cable is installed.In addition, manual operations is simple, not consumes energy.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the present invention is further specified.
Fig. 1 twines the elevation of tying up on anchor pole or anchor cable with the polyurethane foam bag.
Fig. 2 twines the anchor pole of tying up the polyurethane foam bag or the borehole sections figure behind the anchor cable hand-hole.
Fig. 3 is anchor pole or the anchor cable borehole sections figure after the anchoring shutoff.
1. anchor poles or anchor cable among the figure, 2. with adhesive tape twine the polyurethane foam bag top of tying up, 3. envelope in the isolation of polyurethane foam bag, 4. the polyurethane foam bag, 5. twine the polyurethane foam bag bottom of tying up, 6. anchoring agent, 7. boring, 8. lane cave country rock, 9. free section, 10. anchoring section, 11. pallets with adhesive tape.
The specific embodiment
In Fig. 1, polyurethane foam bag (4) forward twined along anchor bar body or anchor cable body with adhesive tape tie up on anchor pole or anchor cable (1).Twine tying, polyurethane foam bag (4) does not misplace, does not come off when anchor pole or anchor cable (1) hand-hole and rotation.Before anchor pole or anchor cable (1) rotation hand-hole section twine the polyurethane foam bag of tying up can only twine tie up bag top (2) to the 3cm place, bag the bottom can twine and ties up.But the bottom (5) that twines the bag of tying up before the rotation on the non-hand-hole section should be used adhesive tape to twine and tied, and is got rid of to avoid anchor pole or anchor cable polyurethane foam bag when holing inner rotary.
Equally, in the embodiment shown in fig. 1, it be the two parts up and down on boundary with envelope (3) in isolating that both hands are held polyurethane foam bag (4) respectively, makes to seal (3) in the isolation and be between two hands.Two hands are slightly firmly held to hold and are washed middle envelope open, and two types of materials just mix in the bag, and two hands are held fast in succession successively respectively and held, and two types of materials are fully mixed in bag.
In Fig. 2, will twine and tie up polyurethane foam bag (4), (at this moment the bag in material by abundant mixing), anchor pole or anchor cable head into boring (7) to anchoring agent (6).Along with anchor pole or the spiral propelling of anchor cable, anchoring agent (6) is stirred by moment and is solidified.Material in the polyurethane foam bag (4) in the boring also reacts expansion, and with the bag spalling, material overflows, and continues to expand.
In Fig. 3, the anchoring agent has formed anchoring section (10) after stirring on anchor pole or anchor cable (1) screw.The material that the expansion of polyurethane foam bag is overflowed has been full of free section (9).
Claims (2)
1. the present invention uses the technical characterictic of the free section of polyurethane foam bag total length shutoff anchor pole and anchor cable boring to be: forward the upper end of polyurethane foam bag is twined with adhesive tape along anchor pole or anchor cable earlier and tie up on anchor bar body or anchor cable body; Wash open with manual mode again and seal or untie outside spacer assembly in the isolation, and get into boring with anchor bar body or anchor cable body after two types of materials of polyurethane fully mix in the bag through holding to hold to make.
2. tie on anchor bar body or anchor cable body for avoiding polyurethane foam bag whipping that rotates up along with anchor bar body or anchor cable body outside boring, need twining with adhesive tape the lower end of polyurethane foam bag with it equally.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102217160A CN102367736A (en) | 2011-07-19 | 2011-07-19 | Full-length blocking of drilling free sections of anchor rod and anchor rope by using polyurethane foamed bags |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102217160A CN102367736A (en) | 2011-07-19 | 2011-07-19 | Full-length blocking of drilling free sections of anchor rod and anchor rope by using polyurethane foamed bags |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102367736A true CN102367736A (en) | 2012-03-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011102217160A Pending CN102367736A (en) | 2011-07-19 | 2011-07-19 | Full-length blocking of drilling free sections of anchor rod and anchor rope by using polyurethane foamed bags |
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| Country | Link |
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| CN (1) | CN102367736A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105442447A (en) * | 2015-11-17 | 2016-03-30 | 江苏中矿大正表面工程技术有限公司 | Isolation and protection structure of profile steel anchoring system of suspension bridge |
| CN109653199A (en) * | 2019-01-21 | 2019-04-19 | 吉林建筑大学 | The partition method of cement base Prestressed Rock soil anchor bolt and anchor rod anchored section and free segment |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4443132A (en) * | 1978-06-22 | 1984-04-17 | Bayer Aktiengesellschaft | Anchoring of tension members |
| DE4023627A1 (en) * | 1990-07-25 | 1992-01-30 | Lu Hsi Huan | METHOD AND DEVICE FOR THE AIR-ASSISTED PRODUCTION OF AN ANCHOR |
| CN2415159Y (en) * | 2000-01-25 | 2001-01-17 | 葛新 | Polyurethane resin anchoring agent anchor rod |
| CN101886531A (en) * | 2010-06-14 | 2010-11-17 | 阳泉煤业（集团）有限责任公司 | Drilling and sealing method for gas drainage from coal seam |
| CN101956546A (en) * | 2010-09-14 | 2011-01-26 | 中国矿业大学 | Method for improving crossing-hole gas extraction concentration |
| CN102052087A (en) * | 2010-06-24 | 2011-05-11 | 阜新库乔聚氨酯发展有限公司 | Polyurethane foaming bag blocked gas drainage hole |
| CN102052082A (en) * | 2010-08-05 | 2011-05-11 | 国风 | Implosion type expansion plugging bag |
-
2011
- 2011-07-19 CN CN2011102217160A patent/CN102367736A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4443132A (en) * | 1978-06-22 | 1984-04-17 | Bayer Aktiengesellschaft | Anchoring of tension members |
| DE4023627A1 (en) * | 1990-07-25 | 1992-01-30 | Lu Hsi Huan | METHOD AND DEVICE FOR THE AIR-ASSISTED PRODUCTION OF AN ANCHOR |
| CN2415159Y (en) * | 2000-01-25 | 2001-01-17 | 葛新 | Polyurethane resin anchoring agent anchor rod |
| CN101886531A (en) * | 2010-06-14 | 2010-11-17 | 阳泉煤业（集团）有限责任公司 | Drilling and sealing method for gas drainage from coal seam |
| CN102052087A (en) * | 2010-06-24 | 2011-05-11 | 阜新库乔聚氨酯发展有限公司 | Polyurethane foaming bag blocked gas drainage hole |
| CN102052082A (en) * | 2010-08-05 | 2011-05-11 | 国风 | Implosion type expansion plugging bag |
| CN101956546A (en) * | 2010-09-14 | 2011-01-26 | 中国矿业大学 | Method for improving crossing-hole gas extraction concentration |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105442447A (en) * | 2015-11-17 | 2016-03-30 | 江苏中矿大正表面工程技术有限公司 | Isolation and protection structure of profile steel anchoring system of suspension bridge |
| CN105442447B (en) * | 2015-11-17 | 2017-10-24 | 江苏中矿大正表面工程技术有限公司 | A kind of suspension bridge shaped steel anchor system isolating and protecting structure |
| CN109653199A (en) * | 2019-01-21 | 2019-04-19 | 吉林建筑大学 | The partition method of cement base Prestressed Rock soil anchor bolt and anchor rod anchored section and free segment |
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Application publication date: 20120307 |