CN203639908U - Recyclable external-thread recombination anchor rod - Google Patents
Recyclable external-thread recombination anchor rod Download PDFInfo
- Publication number
- CN203639908U CN203639908U CN201320822405.4U CN201320822405U CN203639908U CN 203639908 U CN203639908 U CN 203639908U CN 201320822405 U CN201320822405 U CN 201320822405U CN 203639908 U CN203639908 U CN 203639908U
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- China
- Prior art keywords
- external
- pipe
- male
- thread
- anchor rod
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- 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 - Lifetime
Links
- 230000006798 recombination Effects 0.000 title abstract 4
- 238000005215 recombination Methods 0.000 title abstract 4
- 238000004873 anchoring Methods 0.000 claims abstract description 17
- 239000012943 hotmelt Substances 0.000 claims description 28
- 239000002131 composite material Substances 0.000 claims description 21
- 239000002689 soil Substances 0.000 claims description 13
- 239000011435 rock Substances 0.000 claims description 12
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 238000010276 construction Methods 0.000 abstract description 18
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 230000005540 biological transmission Effects 0.000 abstract 2
- 230000008018 melting Effects 0.000 abstract 2
- 238000002844 melting Methods 0.000 abstract 2
- 238000004064 recycling Methods 0.000 abstract 2
- 230000000630 rising effect Effects 0.000 abstract 1
- 238000011084 recovery Methods 0.000 description 13
- 238000005516 engineering process Methods 0.000 description 11
- 239000003822 epoxy resin Substances 0.000 description 6
- 238000009434 installation Methods 0.000 description 6
- 229920000647 polyepoxide Polymers 0.000 description 6
- 229910000831 Steel Inorganic materials 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- 239000004570 mortar (masonry) Substances 0.000 description 3
- 239000004568 cement Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- 239000011083 cement mortar Substances 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000007373 indentation Methods 0.000 description 1
- 239000013521 mastic Substances 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
Images
Abstract
The utility model relates to a recyclable external-thread recombination anchor rod in the field of geotechnical engineering anchoring. The recyclable external-thread recombination anchor rod comprises an external-thread pipe (1) and a hot melting force transmission belt (2), wherein the outer surface of the external-thread pipe (1) is of a thread-shaped tubular structure, the hot melting force transmission belt (2) is of a structure that the anchoring section is wrapped on the external-thread pipe and connection strength can be obviously reduced along with rising of temperature, recycling can be achieved by making full use of the hollow structure of the external-thread pipe (1) during construction, and meanwhile the whole anchor rod can be temporarily fixed and locked conveniently by means of external threads of the external-thread pipe (1). The recyclable external-thread recombination anchor rod greatly improves installing and recycling efficiency and bearing force, is low in manufacturing cost and prominent in environmentally friendly benefit, successfully resolves the problem that a construction anchor rod exceeds the boundary line of land underground in a city, and can be widely applied to the engineering field of foundation pit supports and the like.
Description
Technical field
The present invention relates to the geotechnical anchor engineering field in field of civil engineering.
Background technology
Along with particularly developing rapidly of underground space development of engineering construction, demand to anchor pole in the engineering construction such as bracing of foundation pit, slope retaining increases day by day, and cause contiguous place underground space development difficulty owing to often leaving over the body of rod in adjacent domain after anchor pole use at present, limit to a great extent the application of anchor pole.In order to realize the recovery of anchor bar body, existing callable anchor pole mainly contains the various construction technologies such as anchor pole, U-shaped detachable anchor that connect by mechanical whorl.The nearest documents of callable anchor pole is Chinese patent 01234117.7, this technology and other recoverable anchor rod technology are all the link techniques that adopt screw thread-like, make to deviate from the never recyclable body of the callable beaer of anchor pole after use by the mechanical movement of the body of rod, thereby reach the object that reclaims the body of rod, there is following defect in this technology: one, prior art is by mechanical connection manner by recyclable body and can not recovery body connect, and manufacture craft is more complicated, and cost is high; They are two years old, after anchor bolt construction, because anchor pole is difficult to keep original linear state in drilling construction, deadweight and loading process, thereby the motion mode such as rotation when anchor recovering is difficult to realize, engineering experience confirms, in the time that anchor pole is longer (as the soil nailing in current soil nailing wall foundation pit support), be difficult to realize the object reclaiming, therefore such callable anchor pole is difficult to wide popularization and application in field of civil engineering.Equations of The Second Kind recoverable anchor rod is U-shaped detachable anchor, this technology is that high strength steel strand is curved to U-shaped, then U-shaped steel strand is positioned in armature boring, passes through to discharge one end of U-shaped steel strand after being used to complete, and apply pulling force at the other end, steel strand are pulled out to recovery by force.The shortcoming of this technology is: the first, and in use, the suffered distributed force of steel strand direction along the line is little and inhomogeneous, anchor pole low bearing capacity for this technology; The second, when recovery, pulling force is large, and recovery difficult is large; The 3rd, this technique building technology complexity, cost is high.Due to above defect, though this technology occurred for many years, be still difficult to so far promote.I have proposed before this, and callable end holds formula anchor pole technology, callable end holds callable anchor pole form and the construction methods such as friction rock bolt, callable Composite Bolt and construction method thereof etc., through the design and construction practice of a large amount of recoverable anchor rods, I designed cost lower, reclaim the recyclable Composite Bolt of external screw thread more easily, and the construction method of this kind of anchor pole has been proposed.
The content of invention
The object of the present invention is to provide the recyclable Composite Bolt of a kind of external screw thread, this external screw thread recyclable Composite Bolt energy Fast Installation and recovery, safe and reliable, economic environmental protection, easy construction, cost is low.
The recyclable Composite Bolt of this external screw thread comprises male-pipe, hot melt load transfering strip two parts, male-pipe is wherein to be firmly connected by hot melt load transfering strip and the anchoring body in Rock And Soil or Rock And Soil the structure of transmitting anchor pole anti-pulling capacity, and male-pipe is that external surface is screw-shaped tubular structure, hot melt load transfering strip be wrapped in male-pipe periphery at anchoring section and bonding strength can raise and significantly reduced structure with temperature.
In the recyclable Composite Bolt of above-mentioned external screw thread, above-mentioned male-pipe can be made up of more piece, and in joint, tubulose spigot is set.
In the recyclable Composite Bolt of above-mentioned external screw thread, the external surface of above-mentioned hot melt load transfering strip can be made scraggly structure.
The recyclable Composite Bolt of external screw thread of the present invention is in improving anchor pole anti-pulling capacity, having realized the convenient of anchor member reclaims and anchoring, increase substantially the rate of recovery of anchor pole, transportation, installation and recovery construction rapid and convenient, cost is low, has reclaimed rear residue intensity low, and environmental benefit is outstanding, successfully solved the underground land red-line problem that surmounts of anchor pole of constructing in city, extensively model is applied to the engineering fields such as bracing of foundation pit.
Accompanying drawing explanation
Fig. 1 is one embodiment of the present of invention recyclable Composite Bolt vertical section structure of a kind of external screw thread organigrams used.
Fig. 2 is one embodiment of the present of invention recyclable Composite Bolt cross-sectional structure of a kind of external screw thread organigrams used.
The specific embodiment
As an embodiment as shown in Figures 1 and 2 of the present invention, main purpose is to introduce Structural Tectonics, operating principle and installation thereof and the recovery construction method of the recyclable Composite Bolt of external screw thread.As shown in Figures 1 and 2, the recyclable Composite Bolt of external screw thread of the present invention comprises male-pipe (1), hot melt load transfering strip (2) two parts, male-pipe (1) is wherein for being firmly connected the structure of transmitting anchor pole anti-pulling capacity by hot melt load transfering strip (2) and the anchoring body in Rock And Soil or Rock And Soil, and male-pipe (1) is that external surface is screw-shaped tubular structure, hot melt load transfering strip (2) for be wrapped at anchoring section male-pipe (1) peripheral and bonding strength can be with the temperature significantly reduced structure that raises.Male-pipe (1) is isolated by hot melt load transfering strip (2) and the anchoring body in Rock And Soil or Rock And Soil, and the bonding strength of hot melt load transfering strip (2) can raise and significantly reduce with temperature, for the recovery of male-pipe (1) is laid a good foundation.In the present embodiment, can select the materials such as epoxy resin, epoxy resin mortar, sulphide mastic or other ester class to make hot melt load transfering strip (2), and the scraggly structures such as indentation, screw thread can be made at the external surface of hot melt load transfering strip (2), to increase the bonding strength between the reinforcing body in hot melt load transfering strip (2) and Rock And Soil or ground.In implementation process, male-pipe (1) can be an entirety, also can be interconnected and be formed by more piece.In the time that male-pipe (1) is made up of more piece, should between adjacent two joints, tubulose spigot (3) be set, tubulose spigot (3) can keep male-pipe (1) inner side total length to connect.Generally, the external diameter of tubulose spigot (3) should not significantly be greater than the external diameter of male-pipe (1), can significantly reduce like this material usage of hot melt load transfering strip (2).Being connected can adopt between tubulose spigot (3) in the present embodiment and male-pipe (1) is threaded, at the two ends of tubulose spigot (3), external screw thread is set, joint at male-pipe (1) arranges the internal thread matching, utilize tubulose spigot that two adjacent joint male-pipes are connected, and can keep joint to have hollow channel.In the present embodiment, hot melt load transfering strip (2) is to guarantee one of callable key member of anchor pole, in the time reclaiming, can heat hot melt load transfering strip (2) by heating male-pipe (1) by the hollow part of male-pipe (1), adhesion strength between hot melt load transfering strip (2) and male-pipe (1) is significantly reduced, thereby can easily male-pipe (1) be reclaimed.In the present embodiment, the external surface of male-pipe (1) is designed to shape of threads, main purpose is that the total length direction along male-pipe (1) all can be by the nut of the outside installation at male-pipe (1) by temporary fixed male-pipe (1) in the time reclaiming, be convenient to extracting of male-pipe, greatly improved recovery speed; The screw thread that can pass through the setting of male-pipe (1) external surface simultaneously improves the bonding strength between male-pipe (1) and hot melt load transfering strip (2), also helps the anchoring construction of anchor pole, further reduces anchor pole cost.The installation of the recyclable Composite Bolt of the present embodiment following part article external screw thread of the present invention and recovery construction method and operating principle.First determine the plane of anchor pole and vertically arrange according to designing requirement, completing the first step of the present embodiment, entering second step.In this step, the hot melt such as epoxy resin or epoxy resin mortar material can be put in mould, and male-pipe (1) is placed in one, after the hot melt such as epoxy resin or epoxy resin mortar material is solidified male-pipe (1) parcel, taken out, just completed the manufacture of the recyclable Composite Bolt of external screw thread.In this step, male-pipe (1) can be divided into some joints, the desirable 1～2m of merogenesis length, can connect by tubulose spigot (3) is set between each joint, completes the second step of the present embodiment, enters the 3rd step.In this step, recyclable the external screw thread of manufacturing in above-mentioned second step Composite Bolt is inserted to the anchoring body in Rock And Soil or Rock And Soil, anchoring body wherein can be cement mortar, cement paste, cement mixing method, rotary churning pile etc., use external surface to bond the male-pipe (1) of hot melt load transfering strip (2) in anchoring section position, can directly use male-pipe (1) in free segment position.The 3rd step that completes the present embodiment, enters the 4th step.In this step, by anchor pole be firmly connected by stake or the collar tie beam etc. of anchoring, just can utilize the anti-pulling capacity of anchor pole, enter the operational phase of anchor pole, because male-pipe (1) external surface has screw thread, therefore can easily anchor pole be locked by nut is set.The 4th step that completes the present embodiment, enters the 5th step.In this step, after anchor pole is used to complete, as pit backfill, support replacement such as completes at the operating mode, remove anchor pole in the 4th step with by being connected of anchoring object, complete the 5th step of the present embodiment, enter the 6th step.In this step, by the hollow channel in the male-pipe (1) forming in the 3rd step in the present embodiment, the hot melt load transfering strip (2) of anchoring section is heated and makes hot melt load transfering strip (2) fusing or softening, thereby reduce the bonding strength between hot melt load transfering strip (2) and male-pipe (1).The 6th step that completes the present embodiment, enters the 7th step.In this step, after bonding strength between hot melt load transfering strip (2) and male-pipe (1) reduces, male-pipe (1) is extracted, in the time extracting, can utilize the screw thread of male-pipe (1) external surface, at the upper nut of installing of male-pipe (1), can male-pipe is temporary fixed piecemeal, construct thereby be convenient to extract reclaim.And can extract and be arranged at wherein other members that need reclaim.Complete the 7th step of the present invention.Thereby complete the installation and recovery construction of the recyclable Composite Bolt of male-pipe of the present invention.
This patent includes but not limited to other construction methods of the alternative use of professional person in this area.
Claims (3)
1. the recyclable Composite Bolt of external screw thread, the recyclable Composite Bolt of this external screw thread comprises male-pipe (1), hot melt load transfering strip (2) two parts, male-pipe (1) is wherein for being firmly connected the structure of transmitting anchor pole anti-pulling capacity by hot melt load transfering strip (2) and the anchoring body in Rock And Soil or Rock And Soil, and male-pipe (1) is that external surface is screw-shaped tubular structure, hot melt load transfering strip (2) for be wrapped at anchoring section male-pipe (1) peripheral and bonding strength can be with the temperature significantly reduced structure that raises.
2. the recyclable Composite Bolt of external screw thread according to claim 1, is characterized in that above-mentioned male-pipe (1) is made up of more piece, and tubulose spigot (3) is set in joint.
3. the recyclable Composite Bolt of external screw thread according to claim 1, is characterized in that the external surface of above-mentioned hot melt load transfering strip (2) can be made scraggly structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320822405.4U CN203639908U (en) | 2013-12-12 | 2013-12-12 | Recyclable external-thread recombination anchor rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320822405.4U CN203639908U (en) | 2013-12-12 | 2013-12-12 | Recyclable external-thread recombination anchor rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203639908U true CN203639908U (en) | 2014-06-11 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320822405.4U Expired - Lifetime CN203639908U (en) | 2013-12-12 | 2013-12-12 | Recyclable external-thread recombination anchor rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203639908U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103628478A (en) * | 2013-12-12 | 2014-03-12 | 张继红 | Externally threaded recoverable composite bolt and construction method thereof |
-
2013
- 2013-12-12 CN CN201320822405.4U patent/CN203639908U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103628478A (en) * | 2013-12-12 | 2014-03-12 | 张继红 | Externally threaded recoverable composite bolt and construction method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: SHANGHAI GEO-ANCHOR CO., LTD. Free format text: FORMER OWNER: ZHANG JIHONG Effective date: 20150826 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20150826 Address after: 200086 Shanghai city Hongkou District Helen Road 306 Lane 4, Room 502 Patentee after: SHANGHAI GEO-ANCHOR CO.,LTD. Address before: 200086 Shanghai Helen Road, Lane 306 No. 4 Room 502 Patentee before: Zhang Jihong |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140611 |