CN209025322U - A kind of fibre reinforced composites linked system based on cement base cementing medium - Google Patents
A kind of fibre reinforced composites linked system based on cement base cementing medium Download PDFInfo
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- CN209025322U CN209025322U CN201821569748.3U CN201821569748U CN209025322U CN 209025322 U CN209025322 U CN 209025322U CN 201821569748 U CN201821569748 U CN 201821569748U CN 209025322 U CN209025322 U CN 209025322U
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- grout sleeve
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Abstract
The utility model provides a kind of fibre reinforced composites linked system based on cement base cementing medium, including full grout sleeve, grout hole and plasma discharge hole are equipped at the top of full grout sleeve, full grout sleeve inner wall is equipped with shear connector, it is inserted with the first anchor pole and the second anchor pole respectively in full grout sleeve, it is set with outside first anchor pole for stopping the first seal that stream of slurry goes out in full grout sleeve, it is set with outside second anchor pole for stopping the second seal that stream of slurry goes out in full grout sleeve, the first anchor pole and the second anchor pole are made of fibre reinforced composites；The utility model connects fibre reinforced composites, and safer and more reliable, efficient and easy to operate, durability is good, applicability is wide, engineering practicability is strong.
Description
Technical field
The utility model relates to the interconnection techniques of fibre reinforced composites, are bonded more particularly to one kind based on cement base
The fibre reinforced composites linked system of medium.
Background technique
Grout sleeve connection type original is used to solve reinforcing bar connectivity problem, and principle is that principal rod is worn from sleeve both ends open
Enter sleeve inner, the strength cement-based grouting material of microdilatancy is perfused between principal rod and sleeve, the connection of principal rod can be completed.It connects
The mechanism connect is to be enhanced itself and stress by the confinement effect of sleeve and the micro-expansion characteristics itself having by grouting material
Positive acting power between on the inside of muscle, sleeve, the frictional force generated by the positive force and rough surface, to transmit stress.Make at present
Sleeve grouting material mostly using ordinary cement slurry as cementing medium, prepare, using simplicity and with good by ordinary cement slurry
Stability and durability, but its adhesion strength is lower causes anchorage length too long, and concrete castability is limited by particle size.
In order to meet modern structure to large span, towering, heavily loaded and job development under severe conditions needs, with steel
Muscle is compared, and fibre reinforced composites FRP (Fiber Reinforced Polymer) is big, steady with its lightweight, high-strength, specific modulus
Qualitative good, corrosion resistance and it is applied to the features such as durability is good, thermal expansion coefficient and concrete are close more and more widely each
In kind engineering structure.Wherein, fibrous material includes carbon fiber, glass fibre, aramid fiber, is referred to as CFRP (Carbon
Fiber Reinforced Polymer)、GFRP(Glass Fiber Reinforced Polymer)、AFRP(Aramid
Fiber Reinforced Polymer).However, FRP material cannot be as reinforcing bar using welding or straight screw sleeve connection
Etc. traditional mechanical connection manner, therefore it is badly in need of a kind of reliable connection type and solves its connectivity problem.
A kind of patent document " rock anchor based on Fiber Reinforced Polymer Anchors Yu ultrahigh-performance cement-based bond-anchorage medium
The preparation method of system " (CN102493451B) disclose it is a kind of based on Fiber Reinforced Polymer Anchors and ultrahigh-performance cement-based
The preparation method of the rock anchor system of bond-anchorage medium, the preparation method include following implementation steps: Step 1: determining anchor pole material
Material and anchoring bond medium；Step 2: design anchoring system；Step 3: anchorage anchoring rod both ends；Step 4: anchor pole dispatches from the factory
It examines；Step 5: rock anchor system in-site installation；Step 6: anchor pole tensioning；Step 7: sealing off and covering anchorage.Since rock anchor system of the present invention is adopted
Use fiber reinforced plastic rod as anchor pole, Cement-base material with ultra-high performance as both ends cementing medium, using the group specially designed
Anchor anchorage designs anchorage-tapered cap assembly in lower end with being used as ground upper end anchorage, anchor pole, has played the excellent of two kinds of high performance materials
Different feature overcomes existing rock anchor system Structural Endurance Problem as caused by steel bar corrosion, injecting cement paste aging.But the device
Structure is complicated, and implementation process is cumbersome, is mainly used in rock anchor system, and application range has limitation.
Utility model content
In order to solve the problems existing in the prior art, that the utility model proposes a kind of structures is simple, durability is good, safe and efficient
The fibre reinforced composites linked system based on cement base cementing medium.
The utility model includes full grout sleeve, and grout hole and plasma discharge hole are equipped at the top of the full grout sleeve, described complete
Grout sleeve inner wall is equipped with shear connector, is inserted with the first anchor pole and the second anchor pole, first anchor respectively in the full grout sleeve
It is set with outside bar for stopping the first seal that stream of slurry goes out in full grout sleeve, is set with outside second anchor pole for hindering
The second seal that stream of slurry goes out in full grout sleeve is kept off, first anchor pole and the second anchor pole are by fibre reinforced composites
It is made.
Further, the depth of shear connector distance between full grout sleeve inner wall and the first anchor pole or the second anchor pole
Half.
Further, the shear connector is symmetrical on full grout sleeve inner wall, and along full grout sleeve axial direction
Equipped with several columns.
Further, the first seal and second seal are fixedly mounted respectively on the first anchor pole and the second anchor pole,
Also have the function of limiting anchorage length.
Further, the first seal and second seal outer diameter are greater than full grout sleeve internal diameter.
Further, the axis of the full grout sleeve, the first anchor pole and the second anchor pole is overlapped.
Further, the grout hole and plasma discharge hole are respectively close to full grout sleeve both ends.
Further, there are certain gap between first anchor pole and the second anchor pole, the gap is greater than two anchor poles
The larger value of diameter.
The utility model also provides a kind of fibre reinforced composites linked system implementation based on cement base cementing medium
Method, comprising the following steps:
1) type and specification as the first anchor pole of connecting object and the second anchor pole determine according to actual needs；
2) raw material and proportion of slurry determine according to actual needs；
3) anchorage length according to the specification of the first anchor pole of step 1) and the second anchor pole and its in the slurry, is selected matched
Full grout sleeve specification；
4) the first anchor pole and the second anchor pole are inserted into from full grout sleeve both ends respectively, by anchorage length requirement in step 3)
It is fixed in full grout sleeve, and full grout sleeve is sealed respectively with first seal and second seal；
5) slurry is poured into the full grout sleeve of step 4) by grout hole, vibrate slurry, arranges to slurry from plasma discharge hole
Terminate to be in the milk when out；
6) the full grout sleeve for completing grouting to step 5) conserves, and reaches desired strength to it.
Further, the full grout sleeve, the first anchor pole and the second anchor pole are horizontally mounted.
Further, the slurry is starched as made from Reactive Powder Concrete or high-densit ultra-fine grain material and swelling agent
Material siccative is made by adding water and stirring.
Further, the design length of full grout sleeve is determined also according to the different type of slurry.
Reactive Powder Concrete RPC (Reactive Powder Concrete) system is based on maximum closely knit in the utility model
A kind of ultra-high performance concrete that topology degree is prepared, principle are by improving the fineness of its component and activity, reducing internal lack
It falls into, to obtain the maximum load capacity and excellent durability that are determined by its component material.Compared with normal concrete, RPC is not
Containing coarse aggregate (raw material average grain diameter is at 0.1 μm between 1.0mm), in addition, the addition of steel fibre, ultra-fine grain silicon ash and stone
The use of English powder, so that its compression strength (100-180MPa can reach higher containing steel fibre) with superelevation and higher anti-
Thus tensile strength, good toughness, excellent durability, RPC are also considered as cement-based material of new generation, related RPC material
National standard " Reactive Powder Concrete " (GB/T 31387-2015) has been issued and implemented.
High-densit ultra-fine grain material DSP (Densified Small Particles) uses original in the utility model
Reason is (1- to be differed between two kinds of particles using the gap between ultra-fine grain (such as silicon ash) filling bulky grain (such as cement granules)
2 orders of magnitude), the voidage of material is greatly reduced, to reach closestpacking state.It is in the milk compared to common cement-base
Material has many advantages, such as that low water binder ratio, intensity are high, durability is good, stability is good, and has preferable workability.
The utility model compared with the existing technology, the advantage is that:
1, the utility model is used with lightweight, high-strength, specific modulus is big, stability is good, corrosion resistance and durability are good, hot
The fibre reinforced composites for the features such as coefficient of expansion and concrete are close can satisfy large span, towering, heavily loaded and disliking
The needs of development under the conditions of bad；Use the Cement-base material with ultra-high performance-of actual application prospect great in civil engineering
Reactive Powder Concrete or the equal cloth material of high-densit ultra-fine grain make material internal by improving the fineness and activity of component
Defect is preferably minimized, and can get the maximum load capacity and excellent durability determined by its component material, has intensity high, tough
Property big and good durability distinguishing feature.Fibre reinforced composites and Reactive Powder Concrete or high-densit ultra-fine grain is equal
Cloth material in conjunction with and form advanced fiber reinforced composites connection structure and have advantage functions reliably and efficiently, applicability is wide, work
Journey is practical.
2, the utility model integrated fiber enhances the characteristics of composite material and Cement-base material with ultra-high performance, redesigns fine
Dimension enhancing composite material linked system, including full grout sleeve, full grout sleeve top is equipped with grout hole and plasma discharge hole, complete to be in the milk
Sleeve lining is equipped with shear connector, is inserted with the first anchor pole and the second anchor pole in full grout sleeve respectively, use is set with outside the first anchor pole
In stopping the first seal that stream of slurry goes out in full grout sleeve, it is set with outside the second anchor pole for stopping full grout sleeve entoplasm
The second seal that stream goes out, the first anchor pole and the second anchor pole are made of fibre reinforced composites, which overcomes fibre
It cannot lacking using traditional mechanical connection manner such as welding or straight screw sleeve connection in dimension enhancing composite material connection procedure
Point, and structure is simple, it is convenient to operate；Cooperate Cement-base material with ultra-high performance as cementing medium, obtain higher adhesion strength,
The anchorage length of the first anchor pole and the second anchor pole is reduced, and then reduces the design length of sleeve, full grout sleeve can be direct
Select the various model sleeves on existing market, without being specifically designed, save the cost.
3, the utility model is using fibre reinforced composites as the first anchor pole and the second anchor pole, ultrahigh-performance cement-based
The cementing medium of material-Reactive Powder Concrete or the equal cloth material of high-densit ultra-fine grain as sleeve, so that the utility model
Connect that safer and more reliable, efficient while easy to operate, durability is good, applicability is wide, engineering practicability is strong；Sleeve connection is set
Setting sealing element has the function of sealing and fastening positioning, be conducive to the utility model connection procedure connecting object to just, simultaneously
It is equipped with shear connector in full grout sleeve, when the shearing that linked system is subject to is excessive, shear connector can guarantee slurry and full grouting
Sleeve will not occur to slide greatly, guarantee stability, and be able to carry out fracture, elimination shearing, and then protect its of the utility model
His component, extends the service life of the utility model.
Detailed description of the invention
It, below will be to needed in embodiment description in order to illustrate more clearly of the technical solution of the utility model
Attached drawing is briefly described, it should be apparent that, be described below in the attached drawing of related the utility model be only the utility model
Some embodiments for those of ordinary skill in the art without creative efforts, can also basis
These attached drawings obtain other attached drawings.
FIG. 1 is a schematic structural view of the utility model.
1 full grout sleeve in the figure, 2 grout holes, 3 plasma discharge holes, 4 shear connectors, 5 first anchor poles, 6 second anchor poles, 7 slurries,
8 first seals, 9 second seals.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Detailed description, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole implementation
Example.Based on the embodiments of the present invention, those of ordinary skill in the art institute without making creative work
The every other embodiment obtained, fall within the protection scope of the utility model.
As shown in Figure 1, the utility model includes full grout sleeve 1,2 He of grout hole is equipped at the top of the full grout sleeve 1
Plasma discharge hole 3, complete 1 inner wall of grout sleeve are equipped with shear connector 4, are inserted with the first anchor pole 5 and the in the full grout sleeve 1 respectively
Two anchor poles 6, first anchor pole 5 is set with outside for stopping the first seal 8 that slurry 7 flows out in full grout sleeve 1, described
It is set with outside second anchor pole 6 for stopping the second seal 9 that slurry 7 flows out in full grout sleeve 1,5 He of the first anchor pole
Second anchor pole 6 is made of fibre reinforced composites.
The utility model is used with lightweight, high-strength, specific modulus is big, stability is good, corrosion resistance and durability are good, heat is swollen
The fibre reinforced composites for the features such as swollen coefficient and concrete are close can satisfy large span, towering, heavily loaded and severe
Under the conditions of development needs；First anchor pole 5 and the second anchor pole 6 are made of fibre reinforced composites, the utility model
Overcoming cannot be using traditional mechanical connection such as welding or straight screw sleeve connection in fibre reinforced composites connection procedure
The shortcomings that mode, and structure is simple, it is convenient to operate；Full grout sleeve 1 can directly select the various model sets on existing market
Cylinder, without being specifically designed, save the cost；Sleeve connection setting sealing element has the function of sealing and fastening positioning, it is therefore prevented that slurry
The leakage of material 7, be conducive to the utility model connection procedure connecting object is equipped with shear connector to just, while in full grout sleeve 1
4, when the shearing that the utility model is subject to is excessive, shear connector 4 can guarantee that big cunning will not occur for slurry 7 and full grout sleeve 1
It moves, guarantees stability, and be able to carry out fracture, eliminate shearing, and then protect the other component of the utility model, it is practical to extend this
Novel service life.
The depth of the shear connector 4 between complete 1 inner wall of grout sleeve and the first anchor pole 5 or the second anchor pole 6 distance one
Half, the depth for being equivalent to shear connector 4 takes the half of headroom in full grout sleeve 1, shear connector 4 and the first anchor pole 5 or the second anchor pole 6
Between have gap, be conducive to flowing of the slurry 7 in full grout sleeve 1, facilitate slurry 7 to filling out inside full grout sleeve 1
It fills, not will cause and fill incomplete situation generation, reduce internal flaw, keep the stability and safety of the utility model
Property.
The shear connector 4 is symmetrical on complete 1 inner wall of grout sleeve, and if being equipped with along complete 1 axial direction of grout sleeve
Dry column, multiple shear connectors 4, which are arranged, can guarantee that slurry 7 will not occur to slide greatly with full grout sleeve 1, guarantee stability, and have
Conducive to the effect shearing for eliminating each position, enhances protecting effect, improve the durability of the utility model.
The first seal 8 and 9 outer diameter of second seal are greater than complete 1 internal diameter of grout sleeve, facilitate 8 He of first seal
Sealing of the second seal 9 to full grout sleeve 1 can be simultaneously reached restriction and state the first anchor pole 5 and the anchoring of the second anchor pole 6 is long
The effect of degree.
The first seal 8 and second seal 9 are fixedly mounted respectively on the first anchor pole 5 and the second anchor pole 6, are also had
The effect for limiting anchorage length, is conducive to the positioning of the first anchor pole 5 and the second anchor pole 6.
The axis of the full grout sleeve 1, the first anchor pole 5 and the second anchor pole 6 is overlapped, and is equivalent to full grout sleeve 1, first
The center of circle of the cross section of anchor pole 5 and the second anchor pole 6 is located along the same line, and maintains pair between the utility model connecting object
Plus effect keeps the utility model more stable, and durability is more preferable.
The grout hole 2 and plasma discharge hole 3 ensure that slurry 7 in filling process respectively close to complete 1 both ends of grout sleeve
Density reduces internal flaw.
There are certain gap between first anchor pole 5 and the second anchor pole 6, gap should be greater than the larger of two bolt diameters
Value, i.e. gap are greater than the maximum value of the diameter of the first anchor pole 5 or the second anchor pole 6, are conducive to slurry 7 in full grout sleeve 1
Filling enhances the active force that slurry 7 suffered by the first anchor pole 5 and the second anchor pole 6 generates, makes the safer stabilization of the utility model.
The diameter of first anchor pole 5 and the second anchor pole 6 may be the same or different, and be conducive to select appropriate size
The first anchor pole 5 and the second anchor pole 6, expand the scope of application, choose the anchor pole of suitable specification, saved cost.
The utility model also provides a kind of fibre reinforced composites linked system implementation based on cement base cementing medium
Method, comprising the following steps:
1) type and specification as the first anchor pole 5 of connecting object and the second anchor pole 6 determine according to actual needs；
2) raw material and proportion of slurry 7 determine according to actual needs；
3) matched according to the specification and its anchorage length in slurry 7, selection of step 1) the first anchor pole 5 and the second anchor pole 6
1 specification of full grout sleeve of set；
4) the first anchor pole 5 and the second anchor pole 6 are inserted into from complete 1 both ends of grout sleeve respectively, by anchorage length in step 3)
It is required that be fixed in full grout sleeve 1, and with first seal 8 and second seal 9 full grout sleeve 1 is carried out respectively close
Envelope；
5) slurry 7 is poured into the full grout sleeve 1 of step 4) by grout hole 2, vibrate slurry 7, to slurry 7 from plasma discharge
Hole 3 terminates to be in the milk when being discharged；
6) the full grout sleeve 1 for completing grouting to step 5) conserves, and reaches desired strength to it.
The full grout sleeve 1, the first anchor pole 5 and the second anchor pole 6 are horizontally mounted, and are conducive to slurry 7 to full grouting set
Cylinder 1 grouting treatment, avoid grouting it is non-uniform happen, reduce the internal flaw of the utility model.
The slurry 7 slurry siccative as made from Reactive Powder Concrete or high-densit ultra-fine grain material and swelling agent leads to
It crosses to add water and stir and be made.
The utility model uses Cement-base material with ultra-high performance-activity powder of the great actual application prospect in civil engineering
Last concrete or the equal cloth material of high-densit ultra-fine grain drop the defect of material internal by improving the fineness and activity of component
To most bottom, can get the maximum load capacity and excellent durability determined by its component material, have that intensity is high, toughness is big and
The good distinguishing feature of durability；Using fibre reinforced composites as the first anchor pole 5 and the second anchor pole 6, cooperate very-high performance
The cementing medium of cement-based material-Reactive Powder Concrete or the equal cloth material of high-densit ultra-fine grain as sleeve connection, so that
The utility model is safer and more reliable, efficient, at the same it is easy to operate, durability is good, applicability is wide, engineering practicability is strong
The design length of full grout sleeve 1 determines that the utility model selects very-high performance also according to the different type of slurry 7
The cementing medium of cement-based material-Reactive Powder Concrete or the equal cloth material of high-densit ultra-fine grain as sleeve connection, can be with
Anchorage length is reduced, and then reduces sleeve design length, save the cost.
Basic principles, main features, and advantages of the present invention has been shown and described above.Current row
The technical staff of industry is described in above embodiments and description it should be appreciated that the present utility model is not limited to the above embodiments
Only illustrate the principles of the present invention, the utility model can also on the premise of not departing from the spirit and scope of the utility model
There are various changes and modifications, these various changes and improvements fall within the scope of the claimed invention.The utility model is wanted
Protection scope is asked to be defined by appended claims and its equivalent.
Claims (8)
1. a kind of fibre reinforced composites linked system based on cement base cementing medium, which is characterized in that including being in the milk entirely
Sleeve (1), full grout sleeve (1) top are equipped with grout hole (2) and plasma discharge hole (3), and full grout sleeve (1) inner wall is set
Have shear connector (4), is inserted with the first anchor pole (5) and the second anchor pole (6), first anchor pole respectively in the full grout sleeve (1)
(5) first seal (8) for stopping full grout sleeve (1) interior slurry (7) to flow out, second anchor pole (6) are set with outside
It is set with the second seal (9) for stopping full grout sleeve (1) interior slurry (7) to flow out, first anchor pole (5) and the outside
Two anchor poles (6) are made of fibre reinforced composites.
2. as described in claim 1 based on the fibre reinforced composites linked system of cement base cementing medium, feature exists
In the length of the shear connector (4) is equal to the outer diameter that full grout sleeve (1) internal diameter subtracts the first anchor pole (5) or the second anchor pole (6)
Half.
3. as described in claim 1 based on the fibre reinforced composites linked system of cement base cementing medium, feature exists
In the shear connector (4) is symmetrical on full grout sleeve (1) inner wall, and along full grout sleeve (1) if axial direction is equipped with
Dry column.
4. as described in claim 1 based on the fibre reinforced composites linked system of cement base cementing medium, feature exists
In the first seal (8) and second seal (9) outer diameter are greater than full grout sleeve (1) internal diameter.
5. as described in claim 1 based on the fibre reinforced composites linked system of cement base cementing medium, feature exists
In the first seal (8) and second seal (9) are respectively and fixedly installed on the first anchor pole (5) and the second anchor pole (6).
6. as described in claim 1 based on the fibre reinforced composites linked system of cement base cementing medium, feature exists
In the axis of the full grout sleeve (1), the first anchor pole (5) and the second anchor pole (6) is overlapped.
7. as described in claim 1 based on the fibre reinforced composites linked system of cement base cementing medium, feature exists
In the grout hole (2) and plasma discharge hole (3) are respectively close to full grout sleeve (1) both ends.
8. as described in claim 1 based on the fibre reinforced composites linked system of cement base cementing medium, feature exists
In there are gap between first anchor pole (5) and the second anchor pole (6), the gap is greater than the larger value of two bolt diameters.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201821569748.3U CN209025322U (en) | 2018-09-26 | 2018-09-26 | A kind of fibre reinforced composites linked system based on cement base cementing medium |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821569748.3U CN209025322U (en) | 2018-09-26 | 2018-09-26 | A kind of fibre reinforced composites linked system based on cement base cementing medium |
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| CN209025322U true CN209025322U (en) | 2019-06-25 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110656733A (en) * | 2019-10-09 | 2020-01-07 | 上海建工二建集团有限公司 | Pre-grouting type full-grouting sleeve structure and construction method |
| CN111608708A (en) * | 2020-04-21 | 2020-09-01 | 中交四公局第一工程有限公司 | Device for expanding, digging and pre-reinforcing lateral surrounding rock of tunnel |
| CN113982664A (en) * | 2021-10-26 | 2022-01-28 | 中冶沈勘工程技术有限公司 | Bonding type fiber anchor rod connecting sleeve and fiber anchor rod connecting method |
-
2018
- 2018-09-26 CN CN201821569748.3U patent/CN209025322U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110656733A (en) * | 2019-10-09 | 2020-01-07 | 上海建工二建集团有限公司 | Pre-grouting type full-grouting sleeve structure and construction method |
| CN111608708A (en) * | 2020-04-21 | 2020-09-01 | 中交四公局第一工程有限公司 | Device for expanding, digging and pre-reinforcing lateral surrounding rock of tunnel |
| CN113982664A (en) * | 2021-10-26 | 2022-01-28 | 中冶沈勘工程技术有限公司 | Bonding type fiber anchor rod connecting sleeve and fiber anchor rod connecting method |
| CN113982664B (en) * | 2021-10-26 | 2024-04-09 | 中冶沈勘工程技术有限公司 | Bonding type fiber anchor rod connecting sleeve and fiber anchor rod connecting method |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Fang Zhi Inventor after: Pei Bingzhi Inventor after: Fang Sheng Inventor after: Shan Ren Inventor before: Fang Zhi Inventor before: Fang Sheng Inventor before: Shan Ren |
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| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210128 Address after: Yuelu District City, Hunan province 410082 Changsha Lushan Road No. 1 Hunan University Patentee after: HUNAN University Patentee after: HUBEI PROVINCIAL COMMUNICATIONS INVESTMENT GROUP Co.,Ltd. Address before: Yuelu District City, Hunan province 410082 Changsha Lushan Road No. 1 Hunan University Patentee before: HUNAN University |