CN201835279U - Recyclable composite anchor rod - Google Patents
Recyclable composite anchor rod Download PDFInfo
- Publication number
- CN201835279U CN201835279U CN2010205633489U CN201020563348U CN201835279U CN 201835279 U CN201835279 U CN 201835279U CN 2010205633489 U CN2010205633489 U CN 2010205633489U CN 201020563348 U CN201020563348 U CN 201020563348U CN 201835279 U CN201835279 U CN 201835279U
- Authority
- CN
- China
- Prior art keywords
- anchor rod
- hot melt
- steel strand
- reinforcing bar
- load transfering
- Prior art date
- 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
- 239000002131 composite material Substances 0.000 title claims abstract description 26
- 239000012943 hotmelt Substances 0.000 claims abstract description 32
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 31
- 239000010959 steel Substances 0.000 claims abstract description 31
- 238000004873 anchoring Methods 0.000 claims abstract description 24
- 239000002689 soil Substances 0.000 claims abstract description 20
- 230000003014 reinforcing effect Effects 0.000 claims description 24
- 230000002093 peripheral effect Effects 0.000 claims 1
- 238000010276 construction Methods 0.000 abstract description 15
- 230000005540 biological transmission Effects 0.000 abstract description 4
- 239000004568 cement Substances 0.000 abstract description 3
- 238000004064 recycling Methods 0.000 abstract 3
- 229910001294 Reinforcing steel Inorganic materials 0.000 abstract 1
- 230000008018 melting Effects 0.000 abstract 1
- 238000002844 melting Methods 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 11
- 238000011084 recovery Methods 0.000 description 11
- 239000003822 epoxy resin Substances 0.000 description 6
- 229920000647 polyepoxide Polymers 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 238000010438 heat treatment Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 239000004570 mortar (masonry) Substances 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 230000002950 deficient Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 230000033001 locomotion Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000007599 discharging Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 238000007373 indentation Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Images
Landscapes
- Piles And Underground Anchors (AREA)
Abstract
The utility model relates to a recyclable composite anchor rod in the anchoring field of geotechnical engineering. The recyclable composite anchor rod comprises a hot-melt force transmission belt (2), a reinforcing steel bar or steel strand (3), a hollow channel (4) and a cement anchoring body (1), wherein the cement anchoring body (1) is connected with a soil body (5) so as to provide anti-pulling bearing force, the transmission of the anti-pulling bearing force of the anchor rod is realized through the holding action of the hot-melt force transmission belt (2), and the recycling of the anchor rod is realized by melting. In the utility model, the anti-puling bearing force of the anchor rod is improved, simultaneously, the main stressing members of the anchor rod can be recycled conveniently, the recycling ratio is extremely high, the recycling and the constructing are convenient, the construction cost is low, the environment-friendly benefits are obvious, the problem that the anchor rod in the construction in a city exceeds a land boundary line underground is solved successfully, so that the recyclable composite anchor rod can be widely applied to the bracing of a foundation pit and other engineering fields, and can be promoted and used in soft soil areas.
Description
Technical field
The present invention relates to field of civil engineering, particularly design the geotechnical anchor engineering field.
Background technology
Along with engineering construction developing rapidly of underground space development particularly, demand to anchor pole in engineering constructions such as bracing of foundation pit, slope retaining increases day by day, and cause contiguous place underground space development difficulty owing to often leave over the body of rod after the anchor pole use at present in adjacent domain, limited the application of anchor pole to a great extent.In order to realize the recovery of anchor bar body, existing callable anchor pole mainly contains construction technologies such as various anchor poles by the mechanical whorl connection, the detachable anchor pole of U type.The nearest documents of callable anchor pole is a Chinese patent 01234117.7, this technology and other recoverable anchor rod technology all are to adopt the link technique of screw thread-like, by deviating from the never recyclable body of the callable beaer of anchor pole after the feasible use of the mechanical movement of the body of rod, thereby reach the purpose that reclaims the body of rod, there is following defective in this technology: one, with recyclable body and can not recovery body connect, manufacture craft is complicated, the cost height by mechanical connection manner for prior art; They are two years old, behind the anchor bolt construction, because anchor pole is difficult to keep original linear state in drilling construction, deadweight and loading process, thereby the motion modes such as rotation of anchor pole when reclaiming is difficult to realize, engineering experience confirms, when anchor pole is longer (as the soil nailing in the present soil nailing wall foundation pit support), be difficult to realize the purpose that reclaims, so such callable anchor pole is difficult to wide popularization and application in field of civil engineering.The second class recoverable anchor rod is the detachable anchor pole of U-shaped, this technology is that high strength steel strand is curved U-shaped, then U shaped steel twisted wire is positioned in the armature boring, is used to complete the back by discharging an end of U-shaped steel strand, and apply pulling force at the other end, steel strand are pulled out recovery by force.The shortcoming of this technology is: the first, this technology in use, the suffered distributed force of steel strand direction along the line is little and inhomogeneous; The second, pulling force is big during recovery, and recovery difficult is big; The 3rd, this technique building technology complexity, cost height.Because above defective though this technology has occurred for many years, still is difficult to promote so far.I have proposed before this, and callable end holds formula anchor pole technology, callable end holds callable anchor pole form and job practicess such as friction rock bolt, callable locking-type anchor pole and job practices thereof etc., improve the reliability that anchor pole reclaims in order to advance one one, simplify anchor rod construction process, I propose callable Composite Bolt.
The content of invention
The object of the present invention is to provide a kind of callable Composite Bolt, this callable Composite Bolt can be given full play to the potentiality of geotechnical body, after being used to complete, the body of rod can be reclaimed, avoid the residual influence of the body of rod to the later stage underground space development, enlarged the range of application of anchor pole, safe and reliable, economic environmental protection, easy construction.
This callable Composite Bolt comprises the hot melt load transfering strip, reinforcing bar or steel strand, hollow channel and cement-soil anchoring body four parts are formed, cement-soil anchoring body wherein is for being connected the position that anti-pulling capacity is provided with geotechnical body, reinforcing bar or steel strand are for firmly being connected the structure of transmitting the anchor pole anti-pulling capacity by hot melt load transfering strip and cement-soil anchoring body, the hot melt load transfering strip for be wrapped in reinforcing bar or steel strand periphery at anchoring section and bonding strength can be with the temperature significantly reduced structure that raises, hollow channel is to be arranged at hot melt load transfering strip inside along duct that reinforcing bar or steel strand direction connect.
In above-mentioned callable Composite Bolt, the external surface of above-mentioned hot melt load transfering strip can be made scraggly structure.
In above-mentioned callable Composite Bolt, the firm linkage section of above-mentioned reinforcing bar or steel strand and hot melt load transfering strip can be arranged on the anchor pole diverse location, and smooth be connected or low-intensity connects is set between the reinforcing bar of non-firm linkage section or steel strand and hot melt load transfering strip.
Callable Composite Bolt of the present invention is when improving the anchor pole anti-pulling capacity, realized that the convenient of anchor member reclaims, increased substantially the rate of recovery of anchor pole, install and reclaim easy construction, cost is low, and residue intensity was low after recovery was finished, and environmental benefit is outstanding, successfully solved the underground land used red line problem that surmounts of construction anchor pole in the city, extensively model is applied to engineering fields such as bracing of foundation pit.
Description of drawings
Fig. 1 is the used callable Composite Bolt vertical section structure organigrams of one embodiment of the present of invention.
Fig. 2 is the used callable Composite Bolt cross-sectional structure organigrams of one embodiment of the present of invention.
The specific embodiment
As a Fig. 1 and an embodiment shown in Figure 2, main purpose is to introduce structure construction, operating principle and installation thereof and the recovery job practices of callable Composite Bolt as of the present invention.As Fig. 1 and shown in Figure 2, callable Composite Bolt of the present invention comprises hot melt load transfering strip (2), reinforcing bar or steel strand (3), hollow channel (4) is formed with cement-soil anchoring body (1) four part, cement-soil anchoring body (1) wherein is for being connected the position that anti-pulling capacity is provided with geotechnical body (5), reinforcing bar or steel strand (3) firmly are connected transmission anchor pole anti-pulling capacity by hot melt load transfering strip (2) and cement-soil anchoring body (1), hot melt load transfering strip (2) bonds in reinforcing bar or steel strand (3) periphery at anchoring section, cut off direct connection of reinforcing bar or steel strand (3) and cement-soil anchoring body (1), reinforcing bar or steel strand (3) are connected with cement-soil anchoring body (1) by hot melt load transfering strip (2), can enlarge the contact area of primary structure member reinforcing bar or steel strand (3) and cement-soil anchoring body (1) like this, improve bonding strength, and the bonding strength of hot melt load transfering strip (2) can raise and significantly reduction with temperature, is easy to realize the recovery of reinforcing bar or steel strand (3).In the present embodiment, can with between each root reinforcing bar or steel strand (3) and the hot melt load transfering strip (2) be set firm the connection or smooth connection in different anchor pole positions, just can be as the pressure dispersing type anchor pole, to improve the anti-pulling capacity of long anchor pole.In the present embodiment, can select for use epoxy resin, epoxy resin mortar or other Ester to make hot melt load transfering strip (2), and can make scraggly structures such as indentation, screw thread at the external surface of hot melt load transfering strip (2), to increase the bonding strength between hot melt load transfering strip (2) and the cement-soil anchoring body (1).Hollow channel (4) is arranged at hot melt load transfering strip (2) inside, connect along reinforcing bar or steel strand (3) direction, purpose is to be convenient to heat hot fusibleness load transfering strip (2) when reclaiming, can reserve hollow channel (4) by when the body of rod is made, burying tubular structures such as steel pipe, plastic pipe underground, also can when hot melt load transfering strip (2) is made, it be made as hollow-core construction.Present embodiment is mainly introduced the installation and recovery job practices and operating principle of callable Composite Bolt of the present invention with the lower part.At first determine the plane and vertical layout of anchor pole, finish the first step of callable Composite Bolt job practices of the present invention, entered for second step according to designing requirement.In this step, can utilize heating tank, hot melt materials such as epoxy resin or epoxy resin mortar are put in wherein, after the above-mentioned substance fusing, reinforcing bar that can binding is fixing or steel strand (3) are placed in one together with the mould (being tubular element) of hollow channel (4), treat just to have finished the manufacturing of the callable Composite Bolt body of rod with after the cooling of hot melt materials such as epoxy resin or epoxy resin mortar it being taken out.Finish second step of the present invention, entered for the 3rd step.In this step, can construct cement mixing method or high-pressure rotary jet grouting pile in the anchor pole position as cement-soil anchoring body (1).Finish the 3rd step of the present invention, entered for the 4th step.In this step, will get final product in the Composite Bolt body of rod insertion cement-soil anchoring body of making in above-mentioned second step (1) before the cement-soil anchoring body (1) of construction solidifies in the above-mentioned the 3rd goes on foot.Finish the 4th step of the present invention, entered for the 5th step.In this step, with anchor pole with firmly be connected by the 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.Finish the 5th step of the present invention, entered for the 6th step.In this step, treat that anchor pole is used to complete after, as pit backfill, support replacement such as finishes at operating mode, remove anchor pole in the 5th step with by being connected of anchoring object, finish the 6th step of the present invention, entered for the 7th step.In this step, by the hollow channel of making in above-mentioned second step (4), can in hollow channel (4), inject high temperature objects such as steam, or in hollow channel (4), insert heating wire and heat, to callable Composite Bolt heating, make hot melt load transfering strip (2) fusing or softening, thereby reduce the bonding strength between hot melt load transfering strip (2) and reinforcing bar or the steel strand (3).Finish the 7th step of the present invention, entered for the 8th step.In this step, before hot melt load transfering strip (2) cooling, reinforcing bar or steel strand (3) are extracted out, and can be extracted out other members that need reclaim such as pipeline that are arranged at wherein.Finish the 8th step of the present invention.Thereby finish the installation and recovery construction of callable Composite Bolt of the present invention.
This patent includes but not limited to other job practicess of the alternative use of professional person in this area.
Claims (3)
1. callable Composite Bolt, it is characterized in that this callable Composite Bolt comprises hot melt load transfering strip (2), reinforcing bar or steel strand (3), hollow channel (4) is formed with cement-soil anchoring body (1) four part, cement-soil anchoring body (1) wherein is for being connected the position that anti-pulling capacity is provided with geotechnical body (5), reinforcing bar or steel strand (3) are for firmly being connected the structure of transmitting the anchor pole anti-pulling capacity by hot melt load transfering strip (2) and cement-soil anchoring body (1), hot melt load transfering strip (2) for be wrapped at anchoring section reinforcing bar or steel strand (3) peripheral and bonding strength can be with the temperature significantly reduced structure that raises, hollow channel (4) is for being arranged at the inner duct that connects along reinforcing bar or steel strand (3) direction of hot melt load transfering strip (2).
2. callable Composite Bolt 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.
3. callable Composite Bolt according to claim 1, the firm linkage section that it is characterized in that above-mentioned reinforcing bar or steel strand (3) and hot melt load transfering strip (2) can be arranged on the anchor pole diverse location, between the reinforcing bar of non-firm linkage section or steel strand (3) and hot melt load transfering strip (2) is set smooth the connection or the low-intensity connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205633489U CN201835279U (en) | 2010-10-15 | 2010-10-15 | Recyclable composite anchor rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205633489U CN201835279U (en) | 2010-10-15 | 2010-10-15 | Recyclable composite anchor rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201835279U true CN201835279U (en) | 2011-05-18 |
Family
ID=44005385
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205633489U Expired - Lifetime CN201835279U (en) | 2010-10-15 | 2010-10-15 | Recyclable composite anchor rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201835279U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101994316A (en) * | 2010-10-15 | 2011-03-30 | 张继红 | Recyclable composite anchor rod and construction method thereof |
| CN102704476A (en) * | 2012-05-15 | 2012-10-03 | 覃永忠 | Recyclable end bearing anchor |
-
2010
- 2010-10-15 CN CN2010205633489U patent/CN201835279U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101994316A (en) * | 2010-10-15 | 2011-03-30 | 张继红 | Recyclable composite anchor rod and construction method thereof |
| CN102704476A (en) * | 2012-05-15 | 2012-10-03 | 覃永忠 | Recyclable end bearing anchor |
| CN102704476B (en) * | 2012-05-15 | 2014-11-05 | 覃永忠 | Recyclable end bearing anchor |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101994316A (en) | Recyclable composite anchor rod and construction method thereof | |
| CN102127911A (en) | Recoverable composite anchor rod and construction method thereof | |
| CN106760054B (en) | Prefabricated reinforced concrete shear wall | |
| CN103397633A (en) | Self-drilling RCA (recycling composite anchor) rod and construction method thereof | |
| CN106836179A (en) | Vertical strengthening ribs enhanced bellows grouting pile and construction method | |
| CN101949151A (en) | Recyclable locking anchor rod and construction method thereof | |
| WO2013089466A1 (en) | Method and apparatus for pouring bonding filler in a perforation expansion portion for enhancing the support force of a pile or tensile member | |
| CN201835279U (en) | Recyclable composite anchor rod | |
| KR100985823B1 (en) | The foundation means of reinforcement work for which pulling out resistance pile and this were used | |
| KR20100078632A (en) | Construction method of combined micro-pile with existing structure | |
| CN106836217A (en) | A kind of construction method of expansion end formula soil bolt or soil nailing | |
| CN101793027A (en) | Core-grouted static pressure anchor rod pile | |
| CN109024875A (en) | A kind of assembled integral concrete component and construction method | |
| CN102235004A (en) | Recyclable end-bearing friction-type anchor rod and constructing method thereof | |
| CN201661305U (en) | Friction type anchor rod capable of being recovered | |
| CN106869136A (en) | One kind expands end formula soil bolt | |
| CN202039359U (en) | Recyclable composite anchor rod | |
| KR100444838B1 (en) | A fiber reinforced earth retaining wall, a constructing method thereof, and a composite underground wall structure using thereof | |
| CN203639908U (en) | Recyclable external-thread recombination anchor rod | |
| CN203475427U (en) | Self-drilling type recoverable anchor rod | |
| CN206942800U (en) | The convergent lock pin stake supporting construction of one kind control Tunnel sedimentation | |
| CN201801863U (en) | Recyclable locking type anchor | |
| CN104818718B (en) | A kind of hot melt self-tipping type anchor head for reclaiming anchor cable | |
| CN106480880A (en) | Recoverable soil nailing and the construction method using recoverable soil nail | |
| CN201661304U (en) | Recoverable end support type anchor rod |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190430 Address after: 200086 502, room 4, Lane 306, Helen Road, Hongkou District, Shanghai. Patentee after: Shanghai Tongdi Complete Engineering Co., Ltd. Address before: 200086 502, room 4, Lane 306, Helen Road, Shanghai. Patentee before: Zhang Jihong |
|
| TR01 | Transfer of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110518 |
|
| CX01 | Expiry of patent term |