CN102787597B - Multi-cable recyclable anchor cable head connecting device - Google Patents
Multi-cable recyclable anchor cable head connecting device Download PDFInfo
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- CN102787597B CN102787597B CN201210217058.2A CN201210217058A CN102787597B CN 102787597 B CN102787597 B CN 102787597B CN 201210217058 A CN201210217058 A CN 201210217058A CN 102787597 B CN102787597 B CN 102787597B
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- anchor cable
- attaching nut
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- base plate
- anchor
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Abstract
The invention relates to a multi-cable recyclable anchor cable head connecting device, which overcomes the defects that in the existing inner support construction, the displacement is possibly generated between a foundation pit support and protection wall and two ends of a foundation pit support element, and the stability of the foundation pit support element and the safety of a foundation pit are influenced. The multi-cable recyclable anchor cable head connecting device comprises anchor cables and a support plate, wherein the support plate is positioned in a deep hole, a plurality of connecting screw nuts with one sealed ends are symmetrically and fixedly arranged on the support plate, one connecting screw nut is matched with one anchor cable, the end part of the anchor cable is fixedly provided with a connecting head, the end part of the connecting head is provided with external screw threads, the external threaded end is screwed with each connecting screw nut, a protecting pipe is sheathed outside each anchor cable, and one end of the protecting pipe in the soil layer is in sealed sheathing with each connecting screw nut. The connecting screw nuts are fixedly arranged on the support plate, and the same one support plate can be connected with a plurality of anchor cables, so the tensile resistance in the same deep hole can be enhanced, in addition, the number of the anchor cables is regulated according to the required tensile resistance, the separated processing and the combined welding fixation of the support plate and the connecting screw nuts are adopted, the processing and the connection are very convenient, and the cost is very low.
Description
Technical field
The present invention relates to a kind of deep foundation pit supporting structure, many anchor cables are set in especially a kind of same deep hole and all anchor cables can be reclaimed to the many ropes Recyclable anchor rope head linkage that does not produce underground obstacle.
Background technology
Along with the speed of urban construction is accelerated, urban land is nervous day by day, and building is also more and more higher, and almost Mei Zhuan building all exists Deep Foundation Pit Supporting Project, comprises that underground construction also can use Deep Foundation Pit Supporting Project.
Deep foundation pit support factory often adopts inner support construction method and draws anchor cable construction method outward.Inner support construction method passes through foundation ditch supports support in foundation ditch both sides, the two ends of foundation ditch support member are all generally that contact connects, in inner support construction method, can multiple tracks foundation ditch support member be set at the vertical position of foundation ditch according to the degree of depth of foundation ditch, the setting of foundation ditch support member makes soil excavation inconvenience in foundation ditch, affect the underground engineering construction duration, and foundation ditch support member Compressive Performance is good, if there is displacement laterally in both sides support wall, will affect the stability of foundation ditch support member, when serious, construction accident can occur.Draw anchor cable construction to pass through that anchor cable is inserted in the deep hole of soil layer outward and slip casting forms tension member, therefore, in the situation that execution conditions allow, draw anchor cable construction more and more welcome outward.But anchor rope grouting forms non-dismountable structure, construction finishes rear anchor cable and can stay in the soil layer of foundation ditch periphery.The cost that the first anchor cable can not reclaim construction is higher, the second residual anchor cable can cause obstacle to foundation ditch construction around, such as foundation ditch around deep-cuts work, excavator is stopped and can not work smoothly by anchor cable, road construction or municipal construction for another example, residual anchor cable adopts non-excavation measure to carry out the laying of pipeline as pipe jacking method impact.
Therefore use callable anchor cable structure to become the important selection factor in building operations, a kind of foundation pit supporting project that Ye Shi government advocates energetically.
Patent Office of the People's Republic of China has announced a CN101694098B patent on April 27th, 2011, name is called recyclable prestressed tendon for soft oil support and construction method thereof, comprise: anchor plate, steel strand, anchor end lock, bearing plate, anchor plate is circular, one side is all established several bearing plates along circumference, twisted wire hole, the center of circle is provided with grout hole, anchor end lock is installed on the twisted wire hole of anchor plate one side for tubulose, bearing plate is that paddle-like is flexibly connected with anchor plate by hinge, hinge both sides are provided with the limiting plate affixed with anchor plate, steel strand penetrate twisted wire hole and the anchor end lock crimping being installed on anchor plate.The recovery of this anchor cable needs the equipment that pull power is provided, this device support is arranged between cushion cap and foundation ditch support plate, therefore need certain installing space, if space dwindles, this equipment cannot be installed, thereby affect anchor cable recovery operation, pull slippage between the end of anchor cable and anchor end lock when anchor cable reclaims, belong to damage type dismounting, but the end of anchor cable reaches the anchor plate back side, this back side and cement slurry are solidified into one, and reclaim and make troubles to anchor cable.
Summary of the invention
The invention solves in the construction of existing inner support and may be subjected to displacement between foundation ditch support member two ends and pattern foundation pit supporting structure wall, affect the defect of the stability of foundation ditch support member and the safety of foundation ditch, a kind of many ropes Recyclable anchor rope head linkage is provided, form the outer anchor cable structure that draws, anchor cable is deep into soil layer inside, the exposed junction of anchor cable is fixedly connected with supporting circummure purlin, ensures pattern foundation pit supporting structure wall stability, the safety that simultaneously improves foundation ditch.
The present invention also solved existing outer draw anchor cable construction stream line and soil layer slip casting integral, be not easy dismounting, become obstacle hiding in soil layer, affect foundation ditch follow-up construction around, a kind of many ropes Recyclable anchor rope head linkage is provided, anchor cable outside does not bond with slip casting, and the anchor cable one end employing in soil layer inside is threaded and is for convenience detach, can not produce residual obstacle.
The present invention also solved existing outer draw anchor cable to reclaim need to use can produce larger active force equipment also a larger space of needs for settling this equipment, the space requirement of rear cushion cap outside of having constructed is large, the defect of inconvenient operation, a kind of many ropes Recyclable anchor rope head linkage is provided, when dismounting without the active force that produces pull anchor cable with equipment of the same race, and need to be at outside fixed support, therefore little to the space requirement of anchor cable outside.
The technical solution adopted for the present invention to solve the technical problems is: a kind of many ropes Recyclable anchor rope head linkage, comprise that one end is deep into the anchor cable that deep hole is interior, the other end is fixedly connected with pattern foundation pit supporting structure circummure purlin of soil layer, also comprise the base plate in deep hole, the attaching nut who is symmetrically fixed with the sealing of some one end on base plate, an attaching nut joins an anchor cable; The end of anchor cable is fixed with connector, and connector end is provided with external screw thread, and male end and attaching nut are spirally connected, and the outer cover of every anchor cable is equipped with protecting tube, and one end and the attaching nut of protecting tube in soil layer is sealing socket.Anchor cable extend in deep hole, in deep hole, slip casting is solidified, and ensures that anchor cable can provide enough stretching resistances, this outer anchor cable structure that draws, along the depth profile of soil layer, the anchor cable at different depth place is independent of each other, and each anchor cable can provide stretching resistance, even if support wall deforms, the anchor cable at this place can also provide certain stretching resistance, can not lose support completely, thereby ensure the stability of pattern foundation pit supporting structure circummure purlin, guarantee foundation ditch safety; On base plate, fix several attaching nuts, just can connect the anchor cable of equal number, the holding capacity of every anchor cable is generally 10 tons, calculates the holding capacity of gained according to a deep hole, thereby distributes the anchor cable of suitable quantity, such as 3 or 4 or 5; Base plate separates to make with attaching nut is combined and is mounted with again, is convenient to processing, is also convenient to regulate the quantity of the anchor cable of assembling in same deep hole simultaneously; In the time that the quantity of anchor cable reduces, corresponding attaching nut can not be fixed on base plate, thereby save attaching nut's consumption, reduce costs, base plate forms a passage of a connected component board front and rear surfaces at this place simultaneously, and slurry solidifies the force intensity that is subject to that has improved base plate in passage; Base plate is slabbed construction, processes more convenient; Attaching nut is symmetrical fixing, defines the spacing between attaching nut, also defines the spacing between anchor cable, between anchor cable and anchor cable, can fill slip casting, ensure on base plate stressed evenly; The end of anchor cable is by connector and attaching nut's bolt, and the end of anchor cable is inconvenient to be directly connected with attaching nut, and the end of anchor cable is also inconvenient bending, just can keep the linearity of anchor cable by connector, also facilitates and coordinates with attaching nut simultaneously; Connector and anchor cable end fix, and after connector and attaching nut are spirally connected, rotate anchor cable, anchor cable drives connector to rotate, and connector and attaching nut are separated, thereby anchor cable just can separate anchor cable is extracted out in deep hole with attaching nut, complete anchor cable and reclaim, can not form residual; Anchor cable reclaims the active force that does not need axis direction, only needs rotatory force, therefore not be used between foundation ditch and underground structure basis and fixes pull equipment, little to space requirement, thereby can reduce difficulty of construction, need not calculate the installation site of pull equipment, according to normal construction slot milling; Anchor cable outside is nested with protecting tube, and this protecting tube, by isolated to cement slurry and anchor cable, prevents that cement slurry from solidifying the anchor cable of can holding with a firm grip, reclaims and causes difficulty to anchor cable; End and the attaching nut of protecting tube seal socket, prevent this end water leaking-in material-mud from protecting tube, affect the rotation of connector, also affect anchor cable and reclaim.
As preferably, base plate is circular slabbed construction, is provided with the connecting hole of some symmetries on base plate, and the external diameter of attaching nut's blind end is greater than female end, attaching nut's female end is through connecting hole fixing, and the diameter of blind end is greater than the diameter of connecting hole.Base plate is slabbed construction, is directly to be processed by steel plate, goes out the connecting hole for assembly connection nut on base plate, processes fairly simplely, draws materials also convenient; The T-shaped shape of attaching nut entirety, one end, large footpath is blind end, prevents that cement slurry from extending into from this end the position that attaching nut and connector are spirally connected; The diameter of blind end is greater than the diameter of connecting hole, and attaching nut is from penetrating in connecting hole when, and blind end is as attaching nut's the end of placing restrictions on, and the stretching resistance of bearing anchor cable, is also convenient to attaching nut and fixedly positions on base plate simultaneously; Attaching nut and base plate fix, general employing is welded and fixed, while preventing that attaching nut and connector are spirally connected, attaching nut rotates, also connecting hole can be processed into square hole or other non-circular shapes, attaching nut's miner diameter end is also processed into corresponding shape, prevents that attaching nut from rotating in connecting hole.
As preferably, protecting tube is pipe, and the internal diameter of pipe is greater than the external diameter of anchor cable, and the end of pipe is nested with on attaching nut, and scribbles fluid sealant between the end of pipe and attaching nut.Anchor cable is circular, and protecting tube is also pipe, and leaves gap between the inwall of pipe and anchor cable, is convenient to anchor cable and moves, and is convenient to anchor cable twisting and moves axially when especially dismounting; Connector and attaching nut's female end is spirally connected, and pipe and attaching nut seal socket attaching nut's female end is sealed.
As preferably, on pipe, be provided with the alignment pin of fixing use, the end of alignment pin is inserted in attaching nut's outer wall.Be convenient to pipe and attaching nut's assembling by alignment pin, especially after pipe and attaching nut's sealing, alignment pin is set, just can prevents that pipe from rotating relative to attaching nut, prevent sealing position to damage, guarantee that protecting tube and base plate are put in deep hole, can not seal position seepage simultaneously.
As preferably, protecting tube is pvc pipe; The end of protecting tube is provided with internal thread, and attaching nut's female end appearance is provided with external screw thread, the internal thread bolt of this external screw thread and protecting tube.Pvc pipe is drawn materials conveniently, and has again enough intensity, simultaneously the good airproof performance of pvc pipe self; Pvc pipe is embedded in soil layer and can impact follow-up construction, also can not pollute soil, even also can not affected environment by follow-up construction fragmentation; Pvc pipe end arranges internal thread and attaching nut's external thread bolt connection, has improved the stability that PVC is connected with attaching nut, especially in the time that base plate and protecting tube are put in deep hole simultaneously, keeps being tightly connected.
As preferably, one end that connector is connected with anchor cable is provided with circular hole at axis place, and anchor cable is inserted in circular hole and fixes with connector.Anchor cable end is inserted in circular hole, can whole anchor cable circle be welded and fixed in the end of circular hole, also circular hole can be pressed from both sides to flat and anchor cable formation clamping engagement.
As preferably, the sidewall of connector offers welding window, and welding window is communicated with connector circular hole with outside, and anchor cable is welded and fixed at welding window place after being inserted in circular hole.Welding window increases the constant intensity between anchor cable and connector, prevents that anchor cable and connector are separated, and ensures that connector can bear the enough pulling force of anchor cable.
As preferably, the appearance of connector is provided with two symmetrical concave planes, and on circular hole wall, the position of corresponding concave plane is provided with inside projection.Concave plane is mainly to provide connector and clamps the position needing, anchor cable is inserted in circular hole, and under the effect of outside clamping force, two symmetrical projections press from both sides anchor cable flat, the end that simultaneously anchor cable is deep in circular hole also keeps cylindric, thus prevent anchor cable with connector to separating.
As preferably, the thickness of base plate is 1.5-3cm, and the length of attaching nut's female end is greater than the thickness of base plate, and when attaching nut and base plate are fixed, attaching nut's female end reaches outside base plate.
The invention has the beneficial effects as follows: on base plate, fix some attaching nuts, same base plate can connect many anchor cables, therefore can increase the stretching resistance in same deep hole, and can adjust according to required stretching resistance size the quantity of anchor cable; Base plate and attaching nut's separate machined, Combination Welding are fixed, processing be connected all more conveniently, cost is lower; Connector is threaded with attaching nut, is convenient to dismounting, also need between cushion cap and support plate, not fix large-scale detaching equipment simultaneously, little to withdrawal space demand.
Brief description of the drawings
Fig. 1 is a kind of structural representation of the present invention;
Fig. 2 is a kind of actual schematic diagram that uses of the present invention;
Fig. 3 is the structural representation of a kind of base plate of the present invention;
Fig. 4 is a kind of attaching nut's of the present invention structural representation;
Fig. 5 is the structural representation of a kind of connector of the present invention;
Fig. 6 is the another kind of attaching nut's of the present invention structural representation;
In figure: 1, attaching nut, 2, base plate, 3, connecting hole, 4, alignment pin, 5, connector, 6, protecting tube, 7, anchor cable, 8, fluid sealant, 10, soldier pile, 11, deep hole, 12, cushion cap, 13, load transfering strip, 15, blind end, 16, locating hole, 17, female end, 18, internal thread, 19, external screw thread link, 20, welding window, 21, circular hole, 22, concave plane, 23, projection, 24, external screw thread.
Detailed description of the invention
Below by specific embodiment, and by reference to the accompanying drawings, technical scheme of the present invention is described in further detail.
Embodiment 1: a kind of many ropes Recyclable anchor rope head linkage (referring to accompanying drawing 1), comprise that one end is deep into the anchor cable 7 that deep hole 11 is interior, the other end is fixedly connected with foundation ditch support plate of soil layer, the circular base plate 2 that is fixed on anchor cable end, anchor cable outer cover is equipped with protecting tube 6.
Base plate (referring to accompanying drawing 3) is circular slabbed construction, is provided with four symmetrical connecting holes 3 on base plate, is installed with the attaching nut 1(of one end sealing referring to accompanying drawing 4 in each connecting hole).Attaching nut is T-shaped, and attaching nut's axis place is provided with internal thread 18, and the external diameter of attaching nut's blind end 15 is greater than the external diameter of attaching nut's female end 17, and the appearance of female end is provided with locating hole 16.Female end matches with connecting hole, and attaching nut's female end is through connecting hole, and blind end is against the back side of base plate integrally welded at periphery and the base plate of blind end.The thickness of base plate is 2cm, and the length of attaching nut's female end is greater than the thickness of base plate, and therefore female end reaches outside base plate.
An attaching nut joins an anchor cable, and the end of anchor cable is fixed with connector 5(referring to accompanying drawing 5), connector position rod shaped structure, one end of connector is external screw thread link 19, the other end of connector is provided with circular hole 21.The sidewall of connector offers square welding window 20, and welding window is communicated with connector circular hole with outside.The sidewall of connector is also provided with two symmetrical concave planes 22,90 ° of the location intervals at the position at place, concave plane and welding window place, and the position of the corresponding concave plane of inwall of circular hole is provided with the projection 23 to round hole axial projection.The end of anchor cable is inserted in circular hole and the bottom of always pushing up circular hole, and the mouth place of circular hole connects with the whole lap welding of anchor cable, and the anchor cable of welding window place exposure and the edge of welding window are welded and fixed, and concave plane place clamps anchor cable corresponding position by apparatus for fastening.The external screw thread link of connector and attaching nut's internal thread are spirally connected.
Protecting tube is circular pvc pipe, and the internal diameter of protecting tube is greater than the external diameter of anchor cable.The end of protecting tube is directly plugged into the outside of attaching nut's female end.On pipe, be provided with alignment pin 4 radially, the end of alignment pin is inserted in attaching nut's the locating hole of outer wall.Between the appearance of the end of protecting tube and attaching nut's female end, seal by fluid sealant 8.
The soldier pile 10 of foundation ditch is deep into underground (referring to accompanying drawing 2), and the exposed junction of anchor cable and soldier pile enclose purlin and fix, and forms walking passage between soldier pile and the foundation platform 12 of foundation ditch inside, between this passage place soldier pile and cushion cap, is overlapped with load transfering strip 13.The outside soil layer of supporting circummure purlin is drilled with multiple deep holes 11 under oblique on vertical position, and the angle of inclination of deep hole is 15 degree.On base plate, fix attaching nut, anchor cable end fixes connector, connector and attaching nut fix, the outside of anchor cable is nested with protecting tube, encapsulation process is carried out in the outside of protecting tube, then base plate is put in deep hole together with anchor cable, then deep hole is carried out to slip casting processing, between outer face and soldier pile, reserve not slip casting of free section of anchor cable, and fill corresponding soil property at this free segment.Slip casting, around protecting tube, is filled the gap between protecting tube simultaneously, and the distance between general vertical adjacent anchor cable is 2m.
When dismounting, open free section of anchor cable soil layer, then rotate anchor cable, anchor cable drives connector to rotate, and makes connector rotate and separate with attaching nut, then anchor cable is extracted out in deep hole.
Embodiment 2: a kind of many ropes Recyclable anchor rope head linkage (referring to accompanying drawing 1 accompanying drawing 6), comprise base plate 2, be fixed on the attaching nut 1 on base plate, attaching nut connects anchor cable 7 by connector 5, and the outside of anchor cable is nested with protecting tube 6.
The end of protecting tube is provided with internal thread, and attaching nut's female end 17 appearances are provided with external screw thread 24, the internal thread bolt of this external screw thread 24 and protecting tube.After protecting tube and attaching nut are fixing, position by alignment pin 4, and seal by fluid sealant 8 in the end of protecting tube.All the other structures with reference to embodiment 1(referring to accompanying drawing 2 accompanying drawing 3 accompanying drawings 5).
Above-described embodiment is two kinds of preferred version of the present invention, not the present invention is done to any pro forma restriction, also has other variant and remodeling under the prerequisite that does not exceed the technical scheme that claim records.
Claims (7)
1. the head of rope Recyclable anchor rope more than kind linkage, comprise that one end is deep into the anchor cable that deep hole is interior, the other end is fixedly connected with pattern foundation pit supporting structure circummure purlin of soil layer, characterized by further comprising the base plate in deep hole, the attaching nut who is symmetrically fixed with the sealing of some one end on base plate, an attaching nut joins an anchor cable; The end of anchor cable is fixed with connector, and connector end is provided with external screw thread, and male end and attaching nut are spirally connected, and the outer cover of every anchor cable is equipped with protecting tube, and one end and the attaching nut of protecting tube in soil layer is sealing socket; It is shaft-like that connector is, and the sidewall of connector offers welding window, and welding window is communicated with connector circular hole with outside, and anchor cable is welded and fixed at welding window place after being inserted in circular hole; The appearance of connector is provided with two symmetrical concave planes, and on circular hole wall, the position of corresponding concave plane is provided with inside projection.
2. many ropes Recyclable anchor rope head linkage according to claim 1, it is characterized in that base plate is circular slabbed construction, on base plate, be provided with the connecting hole of some symmetries, the external diameter of attaching nut's blind end is greater than female end, attaching nut's female end is through connecting hole fixing, and the diameter of blind end is greater than the diameter of connecting hole.
3. many ropes Recyclable anchor rope head linkage according to claim 1, it is characterized in that protecting tube is pipe, the internal diameter of pipe is greater than the external diameter of anchor cable, and the end of pipe is nested with on attaching nut, and scribbles fluid sealant between the end of pipe and attaching nut.
4. many ropes Recyclable anchor rope head linkage according to claim 3, is characterized in that being provided with the alignment pin of fixing use on pipe, and the end of alignment pin is inserted in attaching nut's outer wall.
5. according to the many ropes Recyclable anchor rope head linkage described in claim 1 or 2 or 3 or 4, it is characterized in that protecting tube is pvc pipe; The end of protecting tube is provided with internal thread, and attaching nut's female end appearance is provided with external screw thread, the internal thread bolt of this external screw thread and protecting tube.
6. according to the many ropes Recyclable anchor rope head linkage described in claim 1 or 2 or 3 or 4, it is characterized in that one end that connector is connected with anchor cable is provided with circular hole at axis place, anchor cable is inserted in circular hole and fixes with connector.
7. according to the many ropes Recyclable anchor rope head linkage described in claim 1 or 2 or 3 or 4, the thickness that it is characterized in that base plate is 1.5-3cm, the length of attaching nut's female end is greater than the thickness of base plate, when attaching nut and base plate are fixed, attaching nut's female end reaches outside base plate.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210217058.2A CN102787597B (en) | 2012-06-25 | 2012-06-25 | Multi-cable recyclable anchor cable head connecting device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210217058.2A CN102787597B (en) | 2012-06-25 | 2012-06-25 | Multi-cable recyclable anchor cable head connecting device |
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| Publication Number | Publication Date |
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| CN102787597A CN102787597A (en) | 2012-11-21 |
| CN102787597B true CN102787597B (en) | 2014-11-05 |
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| CN201210217058.2A Active CN102787597B (en) | 2012-06-25 | 2012-06-25 | Multi-cable recyclable anchor cable head connecting device |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103132518B (en) * | 2013-03-19 | 2015-05-27 | 苏州市能工基础工程有限责任公司 | Modified clamping piece type anchorage device |
| CN106321124B (en) * | 2016-11-20 | 2019-06-21 | 中国平煤神马能源化工集团有限责任公司 | Mining grouting cable anchor bundle branch maintaining method |
| CN113062314B (en) * | 2021-03-31 | 2022-06-03 | 安徽建筑大学 | Expandable recoverable anchor cable for civil engineering |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1584246A (en) * | 2004-06-04 | 2005-02-23 | 陆观宏 | Recovering anchorage in civil engineering |
| CN101126321A (en) * | 2006-08-18 | 2008-02-20 | 山东大学 | Expansion anchor rod |
| CN202644529U (en) * | 2012-06-25 | 2013-01-02 | 潘明亮 | Multi-cable recoverable anchor cable head connecting device |
-
2012
- 2012-06-25 CN CN201210217058.2A patent/CN102787597B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1584246A (en) * | 2004-06-04 | 2005-02-23 | 陆观宏 | Recovering anchorage in civil engineering |
| CN101126321A (en) * | 2006-08-18 | 2008-02-20 | 山东大学 | Expansion anchor rod |
| CN202644529U (en) * | 2012-06-25 | 2013-01-02 | 潘明亮 | Multi-cable recoverable anchor cable head connecting device |
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| CN102787597A (en) | 2012-11-21 |
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