CN2778883Y - Fixed connection component for pressure type permanence inter face of grouted body of anchor cable - Google Patents
Fixed connection component for pressure type permanence inter face of grouted body of anchor cable Download PDFInfo
- Publication number
- CN2778883Y CN2778883Y CN 200520015922 CN200520015922U CN2778883Y CN 2778883 Y CN2778883 Y CN 2778883Y CN 200520015922 CN200520015922 CN 200520015922 CN 200520015922 U CN200520015922 U CN 200520015922U CN 2778883 Y CN2778883 Y CN 2778883Y
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- bearing plate
- hole
- centre bore
- anchor cable
- steel pipe
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Abstract
The utility model relates to a fixed connection component for the inner anchoring section of a permanent anchor cable in a pressure type, which is provided with a non-bonding pulling cable (8) and a pressure bearing board (2), wherein the pressure bearing board (2) is provided with a cable penetrating hole of vertical penetration. The lower end of the non-binding pulling cable passes through the corresponding fixed cable penetrating hole (16a) of the pressure bearing board from top to bottom, and is clamped on the lower opening part of the fixed cable penetrating hole by a squeezing sleeve (1) fixed on the lower end of a steel twisted cable. The utility model is characterized in that a fixed protective cover (11) is outward sheathed on the squeezing sleeve (1), the upper end opening of the fixed protective sleeve is threaded with the pressure bearing board (2), and the lower part of the fixed protective cover is provided with an oil injecting component (13). Anti-rust grease (14) is injected into a sealed inner cavity of the fixed protective cover, and a pre-tighten flexible component (12) is arranged between the lower end of the squeezing sleeve and the bottom end surface of the inner cavity of the fixed protective cover. The utility model enables the squeezing sleeve to always keep the vertical and corrosion preventing state with the pressure bearing board (2). The utility model has the advantages of simple structure, easy assembly and construction, and good corrosion resistance.
Description
Technical field
The utility model belongs to the dead joint member of anchoring section in the pressure type permanent anchor cable that is used for stability of slope in a kind of geotechnical engineering.
Background technology
Prestress anchorage cable is to be used for the important means that stability of slope is reinforced in the geotechnical engineering, and wherein permanent anchor cable requires service life at 50-100 even longer, so more and more higher to the life requirement of prestress anchorage cable.Referring to Fig. 1, pressure type permanent anchor cable mainly is made up of the interior anchoring section (I) of imbedding cement slurry calculus (7) lining of solidifying in the ground jack (9), free section (II) and the outer anchorage head (III) that exposes ground, usually not having bonding drag-line (8) is made up of steel strand (8b) and protective jacket (8a), the steel strand of core (8b) upper and lower end is fixedlyed connected with interior anchoring section with outer anchoring section respectively, interior anchoring section be by extruded sleeve (1) will not have the bonding drag-line (8) the steel strand lower end be fixed on the bearing plate (2).When the upper end of stretch-draw steel strand, the stretching force of steel strand passes to bearing plate by extruded sleeve, acts on the cement slurry calculus with the form of pressure again by bearing plate, and then passes to ground by the friction of cement slurry calculus side face.Therefore, make the stretching force of drag-line be kept chronically and positively transmit, guarantee non-bending steel cable and extruded sleeve, and be very important the preservative treatment of steel strand, extruded sleeve and bearing plate connecting portion perpendicular to bearing plate.But; do not take into full account the preservative treatment of connecting portion in the prior art; and; the slit (see figure 8) that steel strand produce the unprotect state appears near the contraction regular meeting owing to protective jacket the upper end of extruded sleeve; because interior anchoring section normally is in the underground water; so the connecting portion at steel strand and extruded sleeve easily produces chemical attack and stress corrosion, and then cause that the ineffective side slope accident that causes of anchor cable takes place the steel strand fracture of wire destruction of junction.In addition, in the prior art owing to can not get sufficient relative fixed between extruded sleeve and the bearing plate, in that being carried, the anchor cable body often causes in the work progress being difficult to guarantee that extruded sleeve and steel strand and bearing plate keep plumbness, making stretching force can not pass to ground effectively like this, also is the main cause that causes the side slope accident to take place.
Summary of the invention
The technical problems to be solved in the utility model is to overcome above-mentioned the deficiencies in the prior art, provides that a kind of antiseptic property is good and simple in structure, the dead joint member of the inner anchoring section of pressure type permanent anchor cable that is easy to assemble.
The technical scheme that addresses the above problem is (referring to implementing illustration): the utility model is provided with does not have bonding drag-line (8), level to bearing plate (2), bearing plate (2) is provided with vertically to the hole of reeving that connects, do not have bonding drag-line (8) lower end and pass the corresponding bearing plate hole (16a) of fixedly reeving from top to bottom, and be stuck in end opening position, the hole of fixedly reeving (16a) by the extruded sleeve (1) that is fixed in the steel strand lower end, it is characterized in that: outside described extruded sleeve (1), be with secure shroud (11), the secure shroud upper port is threaded with bearing plate (2), secure shroud (11) bottom is provided with oiling parts (13), the secure shroud inner chamber of sealing is marked with anti-corrosive grease (14), between extruded sleeve lower end and the secure shroud inner chamber bottom face pretension elastomeric element (12) is housed.
During concrete the installation; to not have bonding drag-line (8) lower end and pass the bearing plate hole (16a) of reeving; peel its protective sleeve off; insertion inside is provided with in the extruded sleeve (1) of the hard wire ring that increases frictional force; and carry out pushing fixing together with the part protective sleeve; make the steel strand lower end of not having bonding drag-line (8) be stuck in around the hole of fixedly reeving (16a) end opening of bearing plate (2) by extruded sleeve (1); put into pretension elastomeric element (12) in secure shroud (11) lining then; the secure shroud upper port is threaded with bearing plate (2); pretension elastomeric element (12) can make extruded sleeve become one with bearing plate (2) all the time and keep perpendicular to bearing plate (2), and the oiling parts (13) that are provided with by the guard shield bottom inject anti-corrosive grease to the secure shroud chamber pressure.
The utility model is provided with secure shroud outside extruded sleeve, in guard shield, inject anti-corrosive grease, and the pretension elastomeric element is housed, make extruded sleeve can remain and bearing plate (2) fixed vertical and be in anticorrosion state, thereby ground can be kept and positively be passed to the stretching force that has guaranteed drag-line chronically, and the secure shroud upper port of this device is threaded with bearing plate (2), and is simple in structure, is easy to the assembling construction.
Description of drawings:
Fig. 1, the permanent anchor cable overall structure of pressure-type schematic diagram
Anchoring section connecting elements embodiment 1 structural representation in Fig. 2, the utility model
The G of Fig. 3, bearing plate shown in Figure 22 is to structural representation
The C-C of Fig. 4, Fig. 3 is to sectional view
The H of Fig. 5, bearing plate shown in Figure 22 is to structural representation
The B-B of Fig. 6, Fig. 5 is to sectional view
The syndeton enlarged diagram of Fig. 7, embodiment illustrated in fig. 21 extruded sleeve 1 and steel strand 8b
The syndeton enlarged diagram of Fig. 8, prior art extruded sleeve 1 and steel strand 8b
Fig. 9, the utility model embodiment 2 secure shroud 11 and bearing plate 2 screw connection structure schematic diagrames
Figure 10, the utility model embodiment 3 secure shroud 11 and bearing plate 2 screw connection structure schematic diagrames
1-extruded sleeve 2-bearing plate 3-spiral reinforcement 4-carrying steel pipe 5-backing plate 6-centering frame 7-cement slurry calculus 8-does not have the bonding drag-line 8a-protective sleeve 8b-steel hinge line 9-anchor cable jack 10-concrete pre-stress cross 11-secure shroud 12-pretension elastomeric element 13-oiling parts 14-anti-corrosive grease 15-centre bore 16-hole 16a-annular wall of the hard packing ring 18-of hole 17-annular groove 19-of fixedly reeving of reeving
Specific embodiments
Referring to Fig. 1, the interior anchoring section I of this example is provided with three groups of bearing assembly A1, A2, A3, the six roots of sensation does not have bonding drag-line 8 lower ends and is divided into three groups, be symmetrically fixed on respectively on the bearing plate 2 of three groups of bearing assemblies, the drag-line 8 parallel alignment holes that pass annular spread on the centering frame 6, keeping parallel between the drag-line, and keep the anchor cable body to be in the center of jack 9.
Referring to Fig. 2, Fig. 3, Fig. 4, the bearing plate 2 of bearing assembly A1 be provided with six around centre bore 15 uniform vertically to the hole 16 of reeving that connects, wherein four be made as diameter identical pass the hole, be used to make the drag-line of fixedlying connected with next group bearing plate to pass, two other is the hole 16a that fixedly reeves that is used for fixing drag-line.
These routine secure shroud 11 upper port and bearing plate 2 adopt embedded screw connection structure, be specially: be used for fixing the hole 16a internal diameter of fixedly reeving that does not have the bonding drag-line on the described bearing plate 2 and be up-small and down-big step (referring to Fig. 3, Fig. 4), described extruded sleeve 1 is stuck in lower port place, path hole, hole, big footpath inside wall is provided with screw thread, secure shroud 11 upper port are screwed in the hole, big footpath of the 16a bottom, hole of fixedly reeving, be connected with this hole, big footpath inner thread, oiling parts 13 are equipped with in the secure shroud bottom, the secure shroud inner chamber of sealing is marked with anti-corrosive grease 14, pretension elastomeric element 12 (referring to Fig. 2) is housed between extruded sleeve lower end and the secure shroud bottom surface, what this routine pretension elastomeric element 12 adopted is spring washer, and the pretightning force of spring washer can make extruded sleeve 1 keep vertical with bearing plate 2; What the oiling parts adopted is oil injecting screw, can in the secure shroud annular seal space, pressurize by oil injecting screw and to inject anti-corrosive grease, both can carry out anticorrosion, simultaneously because anti-corrosive grease is in sclerosis or high viscosity state at normal temperatures, can play the effect of fixed press cover again, in construction and handling process, guarantee the up rightness of extruded sleeve 1 and bearing plate 2.
This routine fixed blade guard and bearing plate adopt embedded screw connection structure, not only are easy to assembling, and can dwindle the area occupied of connecting portion, thereby reduce the diameter of bearing plate 2 and ground jack 9, reduce construction costs.
Referring to Fig. 7, extruded sleeve 1 cylindrical shape does not have bonding drag-line 8 lower ends and inserts the extruded sleeve centre bore, and the steel hinge line 8b that the protective jacket position is removed in its underpart is fixing with extruded sleeve 1 extruding by being enclosed within its outer hard packing ring 17; The protective jacket 8a on top partly inserts extruded sleeve centre bore top; the protective jacket outer wall that inserts the extruded sleeve centre bore is fixedlyed connected with the male and female face 1a compression fit of extruded sleeve center bore inner wall; the male and female face 1a of described extruded sleeve center bore inner wall is annular groove (also can be the screw thread of projection); axial friction with between increase and the protective sleeve 8a outer wall makes protective sleeve and extruded sleeve relative fixed.
Since this example do not have bonding drag-line 8 lower ends protective sleeve 8a insertion extruded sleeve 1 and with extruded sleeve top relative fixed; thereby can protect the steel hinge line 8a at this position; can not resemble Fig. 8 and expose outside, thereby prevent the fracture of wire phenomenon that this position steel hinge line produces because of being subjected to chemical attack and stress corrosion because of protective sleeve shrinks.
Referring to Fig. 2, bearing plate 2 lower surface peripheries are provided with the annular that is made of the wall that extends along sidewall downwards and protect skirt 2b, protect the outside expansion that skirt 2b can block middle part cement slurry calculus crackle.Described bearing plate 2 upper surfaces peripheries is the smooth curved surface shape with the connecting portion 2a of sidewall, can avoid the cement slurry calculus to produce stress like this and concentrate, and prevents that cement slurry calculus stress from concentrating and cracking.
With reference to Fig. 2, the upper surface of bearing plate 2 be provided with vertically to steel pipe pressure-bearing post 4, steel pipe pressure-bearing post is with tubular spiral reinforcement 3 outward, tubular spiral reinforcement lower end is enclosed within on the ring-shaped step of the up-small and down-big formation of bearing plate 2 sidewall external diameters, the bearing plate upper surface is provided with fixing hole, fixing hole is inserted in the spiral reinforcement lower end, fixedly connected with bearing plate, referring to Fig. 5, Fig. 6, described level is provided with the centre bore 15 of vertical perforation to bearing plate 2, the step that the centre bore internal diameter is big up and small down, and the lower end of steel pipe pressure-bearing post 4 is provided with external screw thread, its lower end is screwed in the hole, big footpath, corresponding bearing plate 2 step centre bores, 15 tops, is threaded with this center bore inner wall is embedded.
Referring to Fig. 9, this routine secure shroud 11 is the same with embodiment 1 with bearing plate 2 screw connection structures, be embedded screw connection structure, be specially: on bearing plate 2 lower surfaces, be provided with annular groove 18 around the hole 16a that fixedly reeves, described secure shroud 11 upper port are inserted this annular groove, and are threaded with the annular groove side wall surface.
Referring to Figure 10, this routine secure shroud 11 with bearing plate 2 screw connection structures is: on bearing plate 2 lower surfaces, be provided with the annular wall 19 that erects around the hole 16a that fixedly reeves downwards, described secure shroud 11 upper port are threaded with annular wall.
" vertically " as herein described and " level " direction be basal plane relatively all, and when being slope as local basal plane, described " vertically " promptly refers to the direction vertical with slope.
Claims (10)
1, the dead joint member of inner anchoring section of pressure type permanent anchor cable, be provided with and do not have bonding drag-line (8), level to bearing plate (2), bearing plate (2) is provided with vertically to the hole of reeving that connects, do not have bonding drag-line (8) lower end and pass the corresponding bearing plate hole (16a) of fixedly reeving from top to bottom, and be stuck in end opening position, the hole of fixedly reeving (16a) by the extruded sleeve (1) that is fixed in the steel strand lower end, it is characterized in that: outside described extruded sleeve (1), be with secure shroud (11), the secure shroud upper port is threaded with bearing plate (2), secure shroud (11) bottom is provided with oiling parts (13), the secure shroud inner chamber of sealing is marked with anti-corrosive grease (14), between extruded sleeve lower end and the secure shroud inner chamber bottom face pretension elastomeric element (12) is housed.
2, the dead joint member of inner anchoring section of pressure type permanent anchor cable according to claim 1 is characterized in that: secure shroud (11) upper port and bearing plate (2) are embedded screw connection structure.
3, the dead joint member of inner anchoring section of pressure type permanent anchor cable according to claim 2, it is characterized in that: be used for fixing the hole of fixedly reeving (16a) internal diameter that does not have the bonding drag-line on the described bearing plate (2) and be up-small and down-big step, described extruded sleeve (1) is stuck in lower port place, path hole, hole, big footpath inside wall is provided with screw thread, secure shroud (11) upper port is screwed in the hole, big footpath of bottom, the hole of fixedly reeving (16a), is connected with this hole, big footpath inner thread.
4, according to the dead joint member of claim 1,2 or 3 described inner anchoring section of pressure type permanent anchor cable, it is characterized in that: the extruded sleeve centre bore is inserted in described nothing bonding drag-line (8) lower end, and it is fixing with extruded sleeve (1) extruding by being enclosed within its outer hard packing ring (17) that the steel hinge line (8b) at protective jacket position is removed in its underpart; The protective jacket on top (8a) partly inserts extruded sleeve centre bore top, and the protective jacket outer wall that inserts the extruded sleeve centre bore is fixedlyed connected with male and female face (1a) compression fit of extruded sleeve center bore inner wall.
5, according to the dead joint member of claim 1,2 or 3 described inner anchoring section of pressure type permanent anchor cable, it is characterized in that: described bearing plate (2) lower surface periphery is provided with the annular that is made of the wall that extends along sidewall downwards and protects skirt (2b), and the upper surface periphery of described bearing plate (2) is the smooth curved surface shape with the connecting portion of sidewall.
6, the dead joint member of inner anchoring section of pressure type permanent anchor cable according to claim 4, it is characterized in that: described bearing plate (2) lower surface periphery is provided with the annular that is made of the wall that extends along sidewall downwards and protects skirt (2b), and the upper surface periphery of described bearing plate (2) is the smooth curved surface shape with the connecting portion of sidewall.
7, according to claim 1, the dead joint member of 2 or 3 described inner anchoring section of pressure type permanent anchor cable, it is characterized in that: the upper surface of described bearing plate (2) be provided with vertically to steel pipe pressure-bearing post (4), steel pipe pressure-bearing post is with spiral reinforcement (3) outward, fixedly connected with bearing plate in the spiral reinforcement lower end, level is provided with the centre bore (15) of vertical perforation to bearing plate (2), the step that the centre bore internal diameter is big up and small down, the lower end of steel pipe pressure-bearing post (4) is screwed in the hole, big footpath on bearing plate (2) centre bore (15) top, is threaded with this center bore inner wall is embedded.
8, the dead joint member of inner anchoring section of pressure type permanent anchor cable according to claim 4, it is characterized in that: the upper surface of described bearing plate (2) be provided with vertically to steel pipe pressure-bearing post (4), steel pipe pressure-bearing post is with spiral reinforcement (3) outward, fixedly connected with bearing plate in the spiral reinforcement lower end, level is provided with the centre bore (15) of vertical perforation to bearing plate (2), the step that the centre bore internal diameter is big up and small down, the lower end of steel pipe pressure-bearing post (4) is screwed in the hole, big footpath on bearing plate (2) centre bore (15) top, is threaded with this center bore inner wall is embedded.
9, the dead joint member of inner anchoring section of pressure type permanent anchor cable according to claim 5, it is characterized in that: the upper surface of described bearing plate (2) be provided with vertically to steel pipe pressure-bearing post (4), steel pipe pressure-bearing post is with spiral reinforcement (3) outward, fixedly connected with bearing plate in the spiral reinforcement lower end, level is provided with the centre bore (15) of vertical perforation to bearing plate (2), the step that the centre bore internal diameter is big up and small down, the lower end of steel pipe pressure-bearing post (4) is screwed in the hole, big footpath on bearing plate (2) centre bore (15) top, is threaded with this center bore inner wall is embedded.
10, the dead joint member of inner anchoring section of pressure type permanent anchor cable according to claim 6, it is characterized in that: the upper surface of described bearing plate (2) be provided with vertically to steel pipe pressure-bearing post (4), steel pipe pressure-bearing post is with spiral reinforcement (3) outward, fixedly connected with bearing plate in the spiral reinforcement lower end, level is provided with the centre bore (15) of vertical perforation to bearing plate (2), the step that the centre bore internal diameter is big up and small down, the lower end of steel pipe pressure-bearing post (4) is screwed in the hole, big footpath on bearing plate (2) centre bore (15) top, is threaded with this center bore inner wall is embedded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520015922 CN2778883Y (en) | 2005-04-13 | 2005-04-13 | Fixed connection component for pressure type permanence inter face of grouted body of anchor cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520015922 CN2778883Y (en) | 2005-04-13 | 2005-04-13 | Fixed connection component for pressure type permanence inter face of grouted body of anchor cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2778883Y true CN2778883Y (en) | 2006-05-10 |
Family
ID=36752972
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520015922 Expired - Lifetime CN2778883Y (en) | 2005-04-13 | 2005-04-13 | Fixed connection component for pressure type permanence inter face of grouted body of anchor cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2778883Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100445476C (en) * | 2005-04-13 | 2008-12-24 | 李炳奇 | Dead joint member for inner anchoring section of pressure type permanent anchor cable |
| CN102287030A (en) * | 2011-05-18 | 2011-12-21 | 柳州市威尔姆预应力有限公司 | Large-diameter steel strand extrusion sleeve |
-
2005
- 2005-04-13 CN CN 200520015922 patent/CN2778883Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100445476C (en) * | 2005-04-13 | 2008-12-24 | 李炳奇 | Dead joint member for inner anchoring section of pressure type permanent anchor cable |
| CN102287030A (en) * | 2011-05-18 | 2011-12-21 | 柳州市威尔姆预应力有限公司 | Large-diameter steel strand extrusion sleeve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Effective date of abandoning: 20081224 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |