CN2073475U - Anchor rolling rod made of superrapid-hard common cement - Google Patents
Anchor rolling rod made of superrapid-hard common cement Download PDFInfo
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- CN2073475U CN2073475U CN90214539U CN90214539U CN2073475U CN 2073475 U CN2073475 U CN 2073475U CN 90214539 U CN90214539 U CN 90214539U CN 90214539 U CN90214539 U CN 90214539U CN 2073475 U CN2073475 U CN 2073475U
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- cement
- portland cement
- ultrafast
- anchor
- utility
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Abstract
The utility model relates to an anchor rod used for anchoring rock mass in underground engineering, which is particularly suitable for supporting tunnels in various underground mining. The utility model takes general 525 type portland cement as a base material, NX cement ultra-fast hardening agent with certain proportion is added, cement rolls padded via sandwich mode is utilized, and the problem that ordinary cement is taken as the base material for quickly coagulating and anchoring is successfully solved. The utility model has the advantages of quick coagulation and rapid hardness, high primary strength, no poison, no powder dust, low cost, wide range of materials, simple processing, etc. The anchor rod can meet different requirements for construction.
Description
A kind of anchor pole that is used for the underground construction Bolted Rock Masses is applicable to the rock mass supporting of underground constructions such as mine, tunnel, chamber, is specially adapted to the tunnel supporting of all kinds of mineral products underground minings.
The anchor pole that is used for the supporting rock mass both at home and abroad has resin anchor, metal friction anchor pole and portland cement anchor rolling rod, the most close with the present invention is portland cement anchor rolling rod, and this anchor pole partly is made up of the body of rod and anchoring agent two, and the body of rod is a Metallic rod, the anchoring agent is a special cement, and the anchoring agent is contained in the paper web standby.This portland cement anchor rolling rod advantage is that cost is lower, easy to use, and shortcoming is as anchoring agent special cement, because of few, the easy deliquescence in its place of production lost efficacy, transportation stores difficulty, has influenced use.
This is novel to aim to provide a kind of improved portland cement anchor rolling rod, can overcome the disadvantage of existing portland cement anchor rolling rod, extensive use.
This novel ultrafast hard ordinary Portland cement volume anchor pole comprises the body of rod and anchoring agent two partly.The body of rod is the Y type body of rod that screw-thread steel or plain steel-bar are made.Characteristic is that the anchoring agent is a base-material with the 525# portland cement, is equipped with the ultrafast hardener of 10-20%NX cement; Two kinds of component sandwiches are loaded into the cement volume, and core is the ultrafast hardener of NX cement, and skin is the 525# portland cement.
Details are as follows for this novel feature situation:
As the material of anchoring agent, just adhesive material is to be base-material with common 525# portland cement, adds the ultrafast hardener of NX cement, and the effect that makes it to reach the rapid condensation sclerosis is feature of the present invention.Base-material 525# portland cement accounts for 80-90% in the anchoring agent, and the ultrafast hardener of NX cement accounts for 10-20%, can control firm time by regulating both ratios.The commercial goods that this ultrafast hardener of NX cement that uses is produced as chemical plant, Pei County, Jiangsu, main component is CaO, Al
2O
3, CaSo
4, mix on a small quantity promptly and in 1 minute, condense, can obtain the 170-200 kilograms per centimeter in 2-3 hour
2Compressive strength.
The type of feed of cement volume is another feature of the present invention.Two kinds of raw materials in the cement volume be designed to the sandwich filling (see Fig. 1 a) core material be the ultrafast hardener 2 of NX cement, skin is 525# portland cement 1, between the two with paper separation, soaking type structure.3 is inner fiber container among Fig. 1 a, and 4 is outer fiber container, and both all make with long fibered paper.This sandwich cement volume good water permeability vertically has certain intensity, easily stirs brokenly again, and two kinds of material are evenly mixed.
Owing to selected suitable adhesive material material for use and be designed to the cement volume that sandwich is loaded, successfully solved with fast the coagulate anchoring material problem of ordinary Portland cement as base-material, make the present invention have following advantage:
1, have fast coagulating and first, the very approaching characteristics of final set, can regulate time of setting with the ultrafast hardener incorporation of NX cement difference, and hour compressive strength can reach 7.0-30.0MPa, can reach 76.2MPa in 28 days.
2, anchoring agent sclerosis back volume contraction is little, and the later stage is microdilatancy, to the effect of reinforcing bar non-corroding, and intensity stabilization, temperature is little to the influence of intensity.
3, early strength height just had 22.4-34.9 thousand newton's anchored force in 15 minutes, had realized that the short time has the purpose of bearing capacity.Can be used for anchor pole end anchorage or full length fastening, applicability is wide.
4, material source is extensive, and manufacture craft is simple, and cost is low, compares cheap (seeing Table 1) with the metal friction anchor pole with resin anchor.
Several anchor pole prices of table 1
| Title | Unit price (unit/cover) |
| Resin anchor | 14 |
| The metal friction anchor pole | 13 |
| Ultrafast hard ordinary Portland cement volume anchor pole | 5.95 |
Ultrafast hard ordinary Portland cement volume anchor pole is formed (shown in Figure 1) by the two large divisions, i.e. sandwich cement volume and Y type anchor pole.Wherein sandwich cement volume describes in detail at characteristic.
The body of rod of Y type anchor pole (seeing Fig. 1 b) is selected 16 millimeters reinforcing bars of φ (also can select the plain steel-bar of indented bars or larger diameter for use) for use.Adopt total length or two kinds of forms of end anchorage during use.Full length fastening body of rod length is selected 1.5-2.0 rice for use, and an end is flattened jag.The body of rod of end anchorage can be selected jag and anti-twist shape end point for use, and the packing ring (grout stop) of burn-oning from 350-450 millimeter place, termination gets final product.The body of rod comprises that also a supporting plate and nut (see Fig. 2-c).
Ultrafast hard ordinary Portland cement volume anchoring process is seen schematic diagram 2.Cement volume 7 immersion back orders are sent in the hole 6; Driving the body of rod 5 with aerofoil machine 8 all sends into it in hole; The cement volume is stirred into cement paste 9, press upper padding plate 10 again, tighten with nut 11.Whole process is only used two minutes.
The present invention is on probation at Taojiang manganese ore and the southern manganese ore of bucket, proves and adopts this type of anchor pole to safeguard stope top board and tunnel, and safe and reliable, technology is reliable, and is easy and simple to handle, with low cost, and wide adaptability can satisfy different construction requirements, welcome by the workman.If 100,000 anchor poles of expense replace the metal friction anchor pole with the present invention per year, annual 800000 yuan of the economic benefits that just can obtain.
Description of drawings:
Fig. 1 is ultrafast hard ordinary Portland cement volume anchor pole schematic diagram.A: sandwich cement volume; B:Y type anchor pole.
The 1-525# portland cement; The ultrafast hardener of 2-NX cement; The 3-inner fiber container; The 4-outer fiber container; 5-indented bars anchor pole.
Fig. 2 is ultrafast hard ordinary Portland cement volume anchor pole work schematic diagram.A: in the hole, load cement; B: the rotation body of rod volume that mixes cement; C: upper padding plate tightening nuts.
The 6-bolthole; 7-sandwich cement volume; 5-Y type anchor pole; 8-aerofoil machine; The cement paste that 9-has stirred; The 10-backing plate; The 11-nut.
Claims (3)
1, a kind of portland cement anchor rolling rod that comprises metallic rod body, cement anchoring agent, its feature anchoring agent composition is 525# portland cement and the ultrafast hardener of NX cement; Both are seated in the paper web in sandwich mode, and the tube core is the ultrafast hardener of NX cement, and skin is the 525# portland cement, and paper web skin and sandwich skin are long fibered paper;
2, portland cement anchor rolling rod as claimed in claim 1, its feature anchoring agent charge ratio is 525# portland cement 80-90%, the ultrafast hardener 20-10% of NX cement.
3, portland cement anchor rolling rod as claimed in claim 2, its firm time is recently adjusted by the batching of 525# cement and the ultrafast hardener of NX cement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN90214539U CN2073475U (en) | 1990-09-17 | 1990-09-17 | Anchor rolling rod made of superrapid-hard common cement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN90214539U CN2073475U (en) | 1990-09-17 | 1990-09-17 | Anchor rolling rod made of superrapid-hard common cement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2073475U true CN2073475U (en) | 1991-03-20 |
Family
ID=4893915
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN90214539U Withdrawn CN2073475U (en) | 1990-09-17 | 1990-09-17 | Anchor rolling rod made of superrapid-hard common cement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2073475U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101048574B (en) * | 2004-10-21 | 2011-11-02 | 米诺华国际有限公司 | Method for embedding rock anchors |
| CN108035753A (en) * | 2017-12-13 | 2018-05-15 | 河南理工大学 | A kind of Anchor Agent leakproof orientation method |
-
1990
- 1990-09-17 CN CN90214539U patent/CN2073475U/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101048574B (en) * | 2004-10-21 | 2011-11-02 | 米诺华国际有限公司 | Method for embedding rock anchors |
| CN108035753A (en) * | 2017-12-13 | 2018-05-15 | 河南理工大学 | A kind of Anchor Agent leakproof orientation method |
| CN108035753B (en) * | 2017-12-13 | 2019-11-01 | 河南理工大学 | A kind of Anchor Agent leakproof orientation method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |