CN108179745A - The two times tensioning method of the existing anchor cable of assembly type - Google Patents
The two times tensioning method of the existing anchor cable of assembly type Download PDFInfo
- Publication number
- CN108179745A CN108179745A CN201711439609.9A CN201711439609A CN108179745A CN 108179745 A CN108179745 A CN 108179745A CN 201711439609 A CN201711439609 A CN 201711439609A CN 108179745 A CN108179745 A CN 108179745A
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- China
- Prior art keywords
- holding force
- anchor cable
- disk
- anchor
- existing
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Classifications
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/74—Means for anchoring structural elements or bulkheads
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/20—Securing of slopes or inclines
Abstract
A kind of two times tensioning method of the existing anchor cable of assembly type, is related to anchor cable tightening technology field.The two times tensioning method of the existing anchor cable of assembly type of the embodiment of the present invention is that fixation is arranged holding force connector on existing anchor cable, it is fixed through more holding force anchor cables on holding force connector, the beam rope device for all holding force anchor cables to be fixed together is arranged in the middle part of all holding force anchor cables, the arrangement center overlapping of axles of holding force connector, the axis of beam rope device and all holding force anchor cables, jack is set around holding force anchor cable；Hydraulic pressure is conveyed to jack, makes it that holding force anchor cable be driven to be moved to the direction far from holding force connector, so as to carry out two times tensioning to existing anchor cable.The two times tensioning method of the existing anchor cable of the assembly type can realize the two times tensioning of existing anchor cable, and stretching construction does not destroy the original structure of existing anchor cable in the case where existing anchor cable tail portion is shorter, easy to operate, using simple.
Description
Technical field
The present invention relates to anchor cable tightening technology field, in particular to a kind of two times tensioning of the existing anchor cable of assembly type
Method.
Background technology
Prestress anchorage cable is the common method for protecting support of slope retaining, applies prestressing force to side slope by anchor cable.Pass through anchor
On the one hand rope, which applies Prestressing, can significantly improve the stress of side slope surface Rock And Soil, improve the intensity of surface Rock And Soil,
On the other hand side slope surface Rock And Soil and internal Rock And Soil can be connected as a single entity, enhances the globality of side slope, gliding mass is avoided to go out
Existing, it is the key that realize these purposes to ensure enough prestressing force.Usually in engineering construction, when prestressd anchor cable applies in place
Afterwards, according to design requirement, anchor cable tail portion is cut and is enclosed in concrete pier, to prevent anchor cable from getting rusty and ensure engineering
It is beautiful.But over time, due to side slope self-deformation or steel strand wires creep etc., the prestressing force of existing anchor cable
Larger loss is likely to occur, at this time, it may be necessary to carry out two times tensioning to existing anchor cable with restoration designing prestress value, and then is ensured
Engineering stability, safety.
The two times tensioning problem of existing anchor cable is not paid attention in current engineering design or construction, therefore, occurs in anchor cable
After tail portion is cut, the problem of can not carrying out two times tensioning since length is shorter.The invention of application number 201210072894.6 is special
Profit discloses a kind of prestress anchorage cable method for stretching and its device, which is directed to first time tensioning in anchor cable construction
The problem of method (initial tensioning), it improves method for applying prestressing force in anchor cable first time stretching process, it is ensured that anchor in construction
Rope prestressed stretch-draw is in place.The patent of invention of application number 201310325704.1 discloses a kind of device for evenly tensioning anchor cable, should
The purpose of invention is to ensure anchor cable every steel strand wires uniform force during first time tensioning (initial tensioning).Above-mentioned two is closed
In anchorage cable stretching patent of invention be directed to improve anchor cable construction in first time tensioning the problem of, be not particularly suited for existing anchor
The two times tensioning of rope, because they all do not account for this shorter important factor of anchor cable tail portion, and existing anchorage cable stretching machine
Tool (product) does not all account for this factor yet.
Therefore, how effectively to extend the tensioning length of existing anchor cable so that the stretching force of jack can be smoothly applied to
On existing anchor cable, while do not destroy the structure of existing anchor cable again, be the invention solves key problem.
Invention content
The purpose of the present invention is to provide a kind of two times tensioning methods of the existing anchor cable of assembly type, can be in existing anchor cable
The two times tensioning of existing anchor cable is realized in the case that tail portion is shorter, and stretching construction does not destroy the original structure of existing anchor cable, grasped
Make it is convenient and efficient, using simple.
What the embodiment of the present invention was realized in：
A kind of two times tensioning method of the existing anchor cable of assembly type, it is secondary for being carried out to the existing anchor cable for stretching out existing anchor disk
Tensioning includes the following steps：
Fixation is arranged holding force connector on existing anchor cable, fixed on holding force connector to run through more holding force anchor cables,
The beam rope device for all holding force anchor cables to be fixed together, holding force connector, Shu Suoqi are arranged in the middle part of all holding force anchor cables
Axis and all holding force anchor cables arrangement center overlapping of axles, jack is set around holding force anchor cable；
Hydraulic pressure is conveyed to jack, makes it that holding force anchor cable be driven to be moved to the direction far from holding force connector, so as to both
There is anchor cable to carry out two times tensioning.
In preferred embodiments of the present invention, before two times tensioning, holding force anchor disk around holding force anchor cable is set, treats two
After secondary tensioning in place, holding force anchor cable is anchored by holding force anchor disk, prevents it from bouncing back.
In preferred embodiments of the present invention, after holding force anchor disk is anchored holding force anchor cable, jack is detachable.
In preferred embodiments of the present invention, before two times tensioning, shading ring is arranged outside existing anchor cable, shading ring is located at both
Have between anchor disk and holding force connector.
In preferred embodiments of the present invention, before two times tensioning, between existing anchor cable and holding force connector, holding force anchor
Card sets holding force intermediate plate between rope and holding force connector.
In preferred embodiments of the present invention, holding force connector includes coaxially connected the first disk and the second disk, the
The diameter of one disk is less than the diameter of the second disk, offers what is passed through for existing anchor cable in the middle part of the first disk and the second disk
First through hole, the circumference of the second disk offer the second through hole passed through for holding force anchor cable.
In preferred embodiments of the present invention, before two times tensioning, in existing anchor disk, holding force connector and holding force anchor cable
Outside compresses successively is arranged the support feet I to arrange in an axial direction, support feet II, jack, the first pressing plate and holding force nut, holding force spiral shell
Mother is threadedly coupled with holding force anchor cable.
In preferred embodiments of the present invention, support feet I includes coaxially connected the first hollow cylinder and first flange disk,
The first circular hole is offered in the middle part of first flange disk, the lateral surface of first flange disk is provided with coaxial round boss；Support feet
II includes coaxial sequentially connected second flange disk, the second hollow cylinder and chassis with holes, offering in the middle part of second flange disk
Second circular hole, the lateral surface of second flange disk are provided with coaxial circular groove, and the first hollow cylinder is made to resist existing anchor disk institute
In metope, first flange disk and second flange disk are fixed together, and round boss is positioned with circular groove cooperation, and jack supports
It is held between chassis with holes and the first pressing plate.
It is all between first flange disk and chassis with holes before two times tensioning in preferred embodiments of the present invention
Anchor dynamometer, the second pressing plate and holding force anchor disk are arranged on holding force anchor cable successively, the end of anchor dynamometer is made to resist the first method
Blue disk, all holding force anchor cables are each passed through holding force anchor disk, and card sets holding force intermediate plate between every holding force anchor cable and holding force anchor disk.
In preferred embodiments of the present invention, before two times tensioning, positioning column is arranged on anchor dynamometer, makes positioning column
It is fastened between anchor dynamometer and the second hollow cylinder.
The advantageous effect of the embodiment of the present invention is：The two times tensioning method of the existing anchor cable of assembly type of the embodiment of the present invention is
Fixation is arranged holding force connector on existing anchor cable, fixed through more holding force anchor cables on holding force connector, in all holding forces
Be arranged the beam rope device for all holding force anchor cables to be fixed together in the middle part of anchor cable, holding force connector, beam rope device axis and
The arrangement center overlapping of axles of all holding force anchor cables, jack is set around holding force anchor cable；Hydraulic pressure is conveyed to jack, makes it
Holding force anchor cable is driven to be moved to the direction far from holding force connector, so as to carry out two times tensioning to existing anchor cable.The assembly type was both
There is the two times tensioning method of anchor cable, the two times tensioning of existing anchor cable can be realized in the case where existing anchor cable tail portion is shorter,
And stretching construction does not destroy the original structure of existing anchor cable, and it is easy to operate, using simple.
Description of the drawings
It in order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be to needed in the embodiment attached
Figure is briefly described, it should be understood that the following drawings illustrates only certain embodiments of the present invention, therefore is not construed as pair
The restriction of range, for those of ordinary skill in the art, without creative efforts, can also be according to this
A little attached drawings obtain other relevant attached drawings.
Fig. 1 is a kind of structure diagram of assembly type anchor cable tensioning machine tool provided in an embodiment of the present invention；
Fig. 2 is the structure diagram of holding force connector in Fig. 1；
Fig. 3 is the structure diagram at another visual angles of Fig. 2；
Fig. 4 is the structure diagram of beam rope device in Fig. 1；
Fig. 5 is the structure diagram at another visual angles of Fig. 4；
Fig. 6 is the structure diagram of support feet I in Fig. 1；
Fig. 7 is the structure diagram at another visual angles of Fig. 6；
Fig. 8 is the structure diagram of support feet II in Fig. 1；
Fig. 9 is the structure diagram at another visual angles of Fig. 8.
Icon：100- assembly type anchor cable tensioning machine tools；The existing anchor disks of 001-；The existing anchor cables of 002-；003- metopes；101- every
From ring；102- holding force connectors；103- peep holes；104- holding force anchor cables；105- beam rope devices；106- positioning columns；107- anchor cables are surveyed
Power meter；The second pressing plates of 108-；109- holding force anchor disks；110- jack；The first pressing plates of 111-；112- holding force nuts；113- holding forces
Intermediate plate；114- support feets I；115- support feets II；The first disks of 201-；The second disks of 202-；The first through holes of 203-；204-
Two through holes；301- tilts circular hole；The first hollow cylinders of 401-；402- first flange disks；403- round boss；404- first justifies
Hole；501- second flange disks；The second hollow cylinders of 502-；503- chassis with holes；504- trepannings；The second circular holes of 505-；506- justifies
Connected in star.
Specific embodiment
Purpose, technical scheme and advantage to make the embodiment of the present invention are clearer, below in conjunction with the embodiment of the present invention
In attached drawing, the technical solution in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is
Part of the embodiment of the present invention, instead of all the embodiments.The present invention being usually described and illustrated herein in the accompanying drawings is implemented
The component of example can be configured to arrange and design with a variety of different.
Therefore, below the detailed description of the embodiment of the present invention to providing in the accompanying drawings be not intended to limit it is claimed
The scope of the present invention, but be merely representative of the present invention selected embodiment.Based on the embodiments of the present invention, this field is common
Technical staff's all other embodiments obtained without creative efforts belong to the model that the present invention protects
It encloses.
It should be noted that：Similar label and letter represents similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, does not then need to that it is further defined and explained in subsequent attached drawing.
In the description of the present invention, it should be noted that term " " center ", " on ", " under ", " interior ", the instructions such as " outer "
Orientation or position relationship be based on orientation shown in the drawings or position relationship or the invention product using when usually put
Orientation or position relationship, be for only for ease of the description present invention and simplify description rather than instruction or imply signified device or
Element must have specific orientation, with specific azimuth configuration and operation, therefore be not considered as limiting the invention.This
Outside, term " first ", " second " etc. are only used for distinguishing description, and it is not intended that instruction or hint relative importance.
In the description of the present invention, it is also necessary to which explanation is unless specifically defined or limited otherwise, term " setting ",
" connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected or be integrally connected；Can be
Mechanical connection or electrical connection；It can be directly connected, can also be indirectly connected by intermediary, can be two
Connection inside element.For the ordinary skill in the art, above-mentioned term can be understood in the present invention with concrete condition
In concrete meaning.
It please refers to shown in Fig. 1, the present embodiment provides a kind of assembly type anchor cable tensioning machine tool 100, for stretching out existing anchor
The existing anchor cable 002 of disk 001 carries out two times tensioning, and including can holding force connector of the fixing sleeve on existing anchor cable 002
102,6 fixations run through the holding force anchor cable 104 of holding force connector 102, and the middle part of all holding force anchor cables 104 is fixed together
Beam rope device 105, the arrangement center overlapping of axles of holding force connector 102, the axis of beam rope device 105 and all holding force anchor cables 104, holding force
The jack 110 that holding force anchor cable 104 can be driven to be moved to the direction far from holding force connector 102 is provided with around anchor cable 104,
And the holding force anchor disk 109 of holding force anchor cable 104 can be anchored.In the present embodiment, holding force connector 102 is used to connect existing anchor cable
002 and holding force anchor cable 104, holding force anchor cable 104 is used to extend the tensioning length of existing anchor cable 002, and beam rope device 105 will be for will own
Holding force anchor cable 104 flock together, convenient for they carry out tensioning, jack 110 be used for by tensioning holding force anchor cable 104 it is right
Existing anchor cable 002 carries out tensioning, and holding force anchor disk 109 is used for the position so as to fixed existing anchor cable 002 by fixed existing anchor cable 002
Put, make its keep tensile state, therefore, the assembly type anchor cable tensioning machine tool 100 can it is shorter in existing 002 tail portion of anchor cable (3~
The two times tensioning of existing anchor cable 002 is realized in the case of 5cm), and stretching construction does not destroy the original structure of existing anchor cable 002,
It is easy to operate, using simple.
In order to make the reliability connected between existing anchor disk 001 and holding force connector 102, assembly type anchor cable tensioning machine tool
100 further include and are sheathed on outside existing anchor cable 002, and compress the shading ring between existing anchor disk 001 and holding force connector 102
101.In order to make the reliability connected between 102 three of existing anchor cable 002, holding force anchor cable 104 and holding force connector, existing anchor cable
Holding force intermediate plate 113 is arranged between 002 and holding force connector 102, between holding force anchor cable 104 and holding force connector 102.
Referring to shown in Fig. 2 and Fig. 3, holding force connector 102 divides for two parts, including coaxially connected 201 He of the first disk
Second disk 202, the diameter of the first disk 201 are less than the diameter of the second disk 202, and the first disk 201 and the second disk 202 are real
It is integrated, the first disk 201 is the equal of a cylindrical boss.The middle part of first disk 201 and the second disk 202 is uniformly opened
Equipped with the first through hole 203 that the existing anchor cable 002 of 6 confessions and holding force intermediate plate 113 pass through, the even circumferential of the second disk 202 is opened
The second through hole 204 passed through equipped with 6 for holding force anchor cable 104.
Referring to shown in Fig. 4 and Fig. 5, beam rope device 105 offers 6 and tilts circular hole correspondingly with holding force anchor cable 104
301, one end of all inclination circular holes 301 from neighbouring holding force connector 102 is gathered to the centre of the other end, and beam rope device 105 is led
It is used to gather and fixes holding force anchor cable 104.
In order to realize that jack 110 can drive holding force anchor cable 104 to be drawn to the direction movement far from holding force connector 102
It stretches, the outer, coaxial of existing anchor disk 001, holding force connector 102 and holding force anchor cable 104 is arranged with support feet I114, support successively
Foot II115, jack 110, the first pressing plate 111 and holding force nut 112, holding force nut 112 are threadedly coupled with holding force anchor cable 104.
Referring to shown in Fig. 6 and Fig. 7, support feet I114 includes the first hollow cylinder 401 and first coaxial welding together
Ring flange 402 cuts the peep hole 103 there are one strip on first hollow cylinder 401, and the middle part of first flange disk 402 offers
For the first circular hole 404 that holding force anchor cable 104 passes through, the lateral surface of first flange disk 402 is provided with coaxial round boss 403,
Round boss 403 is used for and support feet II115 centerings, meanwhile, 402 outer rim of first flange disk has 6 threaded holes, for locking branch
Spike I114 and support feet II115.Referring to shown in Fig. 8 and Fig. 9, support feet II115 include it is coaxial weld together successively the
There are symmetrical 2 bar shapeds in two ring flanges 501, the second hollow cylinder 502 and chassis with holes 503, the both sides of the second hollow cylinder 502
Opening, for observing two times tensioning situation, the middle part of second flange disk 501 offers the second circle passed through for holding force anchor cable 104
Hole 505, the lateral surface of second flange disk 501 are provided with coaxial circular groove 506, meanwhile, 501 outer rim of second flange disk has 6
A threaded hole, for lock support foot I114 and support feet II115, the trepanning 504 on chassis 503 with holes is used for for holding force anchor cable
104 are pierced by.First hollow cylinder 401 resists existing 001 place metope 003 of anchor disk, first flange disk 402 and second flange disk
501 are fixed together, and circular groove 506 can be fixed with the cooperation of the round boss 403 on the first flange disk 402 of support feet I114
Position, coordinates with circular groove 506 and positions, and jack 110 is held between 503 and first pressing plate 111 of chassis with holes.To jack
110 conveying hydraulic pressure, one end of jack 110 is pressed against chassis 503 with holes, then pass through the second hollow cylinder 502, second flange disk
501st, 402 and first hollow cylinder 401 of first flange disk compresses metope 003, and the other end of jack 110 resists the first pressing plate
111, the position between the first pressing plate 111 and holding force anchor cable 104 is fixed, so as to drive holding force anchor cable 104, holding force connector 102,
And then existing anchor cable 002 is driven to be stretched.
In order to realize that holding force anchor disk 109 can fix the position of holding force anchor cable 104, first flange disk 402 and chassis with holes 503
Between all holding force anchor cables 104 on be arranged with anchor dynamometer 107, the second pressing plate 108 and holding force anchor disk 109, anchor cable successively
The end of dynamometer 107 resists first flange disk 402, and all holding force anchor cables 104 are each passed through holding force anchor disk 109, every holding force
Holding force intermediate plate 113 is arranged between anchor cable 104 and holding force anchor disk 109, positioning column 106 is arranged on anchor dynamometer 107, is positioned
Column 106 is fastened between 107 and second hollow cylinder 502 of anchor dynamometer, and positioning column 106 is welded on the second hollow cylinder 502
Inner surface.When carrying out two times tensioning to existing anchor cable 002 by jack 110, holding force anchor cable 104 drives holding force connector
102, and then existing anchor cable 002 is driven to be stretched to the direction far from existing anchor disk 001, under the action of positioning column 106, anchor cable is surveyed
The position of power meter 107, the second pressing plate 108 and holding force anchor disk 109 is constant, and holding force anchor cable 104 passes through holding force anchor disk 109 outside at this time
It stretches, then under the action of holding force intermediate plate 113, realizes fixed between holding force anchor disk 109 and holding force anchor cable 104；Two times tensioning
After in place, withdraw jack 110, under the rebound effect of existing anchor cable 002, holding force anchor cable 104 drive holding force anchor disk 109 to
Its direction movement is connected until be pressed against the second pressing plate 108, then resist anchor dynamometer 107 close to holding force, and then resists the
One ring flange 402, realizes the fixation to 104 position of holding force anchor cable.
Generally speaking, each component of the assembly type anchor cable tensioning machine tool 100 of the embodiment of the present invention can be classified as two major class：It can not
Dismantle base part and detachable base part.
Non-dismountable component refer to when existing 002 two times tensioning of anchor cable in place after, by anchoring, these components cannot be split
It unloads, specifically includes：Shading ring 101, holding force intermediate plate 113, holding force connector 102, support feet I114, holding force anchor cable 104, Shu Suoqi
105th, anchor dynamometer 107, the second pressing plate 108, holding force anchor disk 109.
Correspondingly, after detachable part refers to existing 002 two times tensioning of anchor cable in place, after stretching force is anchored, these
Component can be removable, and to save space, be specifically included：Positioning column 106, support feet II115, jack 110, the first pressing plate
111st, holding force nut 112.
The connection relation of non-dismountable component is：(1) shading ring 101 is inserted in the outside of existing anchor cable 002, is then covered again
Enter holding force connector 102, existing anchor cable 002 passes through the first through hole 203, and is put into holding force intermediate plate in the first through hole 203
113, then holding force anchor cable 104 is passed through into the second through hole 204, and be put into holding force intermediate plate 113 in the second through hole 204, pass through
Holding force connector 102 connects existing anchor cable 002 with holding force anchor cable 104.(2) holding force anchor cable 104 is passed through into beam rope device
105, hold anchor cable 104, which is gathered, to be secured together, and support feet I114 is sleeved on 102 outside of holding force connector later.(3) it waits to prop up
After spike I114 is installed in place, anchor dynamometer 107 is passed through into holding force anchor cable 104, the second pressing plate 108 is then passed through into holding force anchor
Holding force anchor disk 109 is screwed in the outside of holding force anchor cable 104 by rope 104 later.
The connection relation of detachable part is：(1) after non-dismountable component is installed in place, support feet II115 is passed through and is held
Power anchor cable 104 is sleeved on the outside of anchor dynamometer 107, since support feet II115 internal weldings are connected to positioning column 106, it is possible to
Ensure that anchor dynamometer 107 and support feet II115 are concentric, simultaneously as the end of support feet II115 and support feet I114
There are the second flange disk 501 of centering and first flange disk 402 in tail portion, it is possible to ensure support feet I114 and support feet II115
It is concentric.(2) jack 110 is passed through into holding force anchor cable 104, the first pressing plate 111 is inserted in holding force anchor cable 104, is against very heavy
110 tail portions are pushed up, screw in holding force nut 112 later.
The present embodiment also provides a kind of two times tensioning method of the existing anchor cable of assembly type, is to use above-mentioned assembly type anchor cable
Tensioner 100 for carrying out two times tensioning to the existing anchor cable 002 for stretching out existing anchor disk 001, includes the following steps：
S1, the metope 003 on existing 002 periphery of anchor cable is flattened first.
S2, fixation is arranged shading ring 101 and holding force connector 102 on existing anchor cable 002, on holding force connector 102
It is fixed to run through more holding force anchor cables 104, beam rope device 105 is arranged at the middle part of all holding force anchor cables 104, it specifically successively will isolation
Ring 101 and holding force connector 102 are sleeved on existing 002 outside of anchor cable, and shading ring 101 is located at existing anchor disk 001 and holding force connector
Between 102, holding force anchor cable 104 is gathered with beam rope device 105 and is secured together, existing anchor cable 002 and holding force connector 102 it
Between, between holding force anchor cable 104 and holding force connector 102 card sets holding force intermediate plate 113, holding force connector 102, beam rope device 105
The arrangement center overlapping of axles of axis and all holding force anchor cables 104.
S3, the support feet I114 in the outer cover of existing anchor disk 001, holding force connector 102 and holding force anchor cable 104, make branch
The first hollow cylinder 401 of spike I114 ends is all against on existing 001 place metope 003 of anchor disk.
Anchor cable survey is arranged on S4, all holding force anchor cables 104 between first flange disk 402 and chassis with holes 503 successively
Power meter 107, the second pressing plate 108 and holding force anchor disk 109, card sets holding force folder between every holding force anchor cable 104 and holding force anchor disk 109
Anchor dynamometer 107, is specifically inserted on holding force anchor cable 104 by piece 113, is then inserted in the second pressing plate 108 and holding force anchor disk
109, the end of anchor dynamometer 107 is made to resist first flange disk 402, all holding force anchor cables 104 are each passed through holding force anchor disk
109, holding force anchor disk 109 is tight against the second pressing plate 108.
S5, it is arranged support feet II115 in the outside of anchor dynamometer 107, and by 402 He of first flange disk of support feet I114
501 centering of second flange disk of support feet II115 specifically makes round boss 403 coordinate with circular groove 506 and positions, later
The two is fixed with bolt.
S6, jack 110 is inserted in 104 outside of holding force anchor cable, ensures that jack 110 and holding force anchor cable 104 are concentric.
S7, the first pressing plate 111 is inserted in the tail end of jack 110, jack 110 is held in chassis 503 and first with holes
Between pressing plate 111, holding force nut 112 is then threaded on holding force anchor cable 104, and screws holding force nut 112.
S8, its is made to generate two times tensioning power to the conveying hydraulic pressure of jack 110, makes it that holding force anchor cable 104 be driven to be held to separate
The direction movement of power connector 102, so as to carry out two times tensioning to existing anchor cable 002, after two times tensioning power applies in place, then
Slight overpull is carried out, then keeps the displacement cylinder of jack 110 motionless, by the effect of pulling force and frictional force, is pressed from both sides by holding force
Piece 113 fixes holding force anchor cable 104 and holding force connector 102.
S9, the hydraulic oil laid down in jack 110 make its displacement cylinder bounce back, and have just started the mistake of rebound in holding force anchor cable 104
Cheng Zhong, holding force intermediate plate 113 fix holding force anchor disk 109 with holding force anchor cable 104, and holding force anchor cable 104 cannot bounce back again, therefore secondary
Stretching force is transferred completely on holding force anchor disk 109.
S10, from tail portion piece by piece by detachable part removable member, disassembly sequence is：112 → the first pressing plate of holding force nut
111 → jack, 110 → support feet II115.
In conclusion the two times tensioning method of the existing anchor cable of assembly type of the present invention can be shorter in existing anchor cable tail portion
In the case of realize the two times tensioning of existing anchor cable, and stretching construction does not destroy the original structure of existing anchor cable, it is easy to operate,
Using simple.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, that is made any repaiies
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of two times tensioning method of the existing anchor cable of assembly type, for carrying out secondary to the existing anchor cable for stretching out existing anchor disk
It draws, which is characterized in that it includes the following steps：
Fixation is arranged holding force connector on the existing anchor cable, fixed through more holding force anchors on the holding force connector
Rope is arranged the beam rope device for all holding force anchor cables to be fixed together, the holding force connection in the middle part of all holding force anchor cables
The arrangement center overlapping of axles of device, the axis of the beam rope device and all holding force anchor cables, thousand are set around the holding force anchor cable
Jin top；
Hydraulic pressure is conveyed to the jack, makes it that the holding force anchor cable be driven to be moved to the direction far from the holding force connector,
So as to carry out two times tensioning to the existing anchor cable.
2. the two times tensioning method of the existing anchor cable of assembly type according to claim 1, which is characterized in that in two times tensioning
Before, around the holding force anchor cable set holding force anchor disk, after two times tensioning in place after, by the holding force anchor disk anchoring described in
Holding force anchor cable prevents it from bouncing back.
3. the two times tensioning method of the existing anchor cable of assembly type according to claim 2, which is characterized in that treat the holding force anchor
After disk is anchored the holding force anchor cable, the jack is detachable.
4. the two times tensioning method of the existing anchor cable of assembly type according to claim 1, which is characterized in that in two times tensioning
Before, shading ring is arranged outside the existing anchor cable, the shading ring is between the existing anchor disk and the holding force connector.
5. the two times tensioning method of the existing anchor cable of assembly type according to claim 1, which is characterized in that in two times tensioning
Before, card is set between the existing anchor cable and the holding force connector, between the holding force anchor cable and the holding force connector
Holding force intermediate plate.
6. the two times tensioning method of the existing anchor cable of assembly type according to claim 1, which is characterized in that the holding force connection
Device includes coaxially connected the first disk and the second disk, and the diameter of first disk is less than the diameter of second disk,
The first through hole passed through for the existing anchor cable, second disk are offered in the middle part of first disk and the second disk
Circumference offer the second through hole passed through for the holding force anchor cable.
7. the two times tensioning method of the existing anchor cable of assembly type according to claim 1, which is characterized in that in two times tensioning
Before, it is compressed successively in the outside of the existing anchor disk, the holding force connector and the holding force anchor cable and is arranged what is arranged in an axial direction
Support feet I, support feet II, the jack, the first pressing plate and holding force nut, the holding force nut and the holding force anchor cable screw thread
Connection.
8. the two times tensioning method of the existing anchor cable of assembly type according to claim 7, which is characterized in that the support feet I
Including coaxially connected the first hollow cylinder and first flange disk, the first circular hole, institute are offered in the middle part of the first flange disk
The lateral surface for stating first flange disk is provided with coaxial round boss；The support feet II includes coaxial sequentially connected second method
Blue disk, the second hollow cylinder and chassis with holes offer the second circular hole, the second flange disk in the middle part of the second flange disk
Lateral surface be provided with coaxial circular groove, first hollow cylinder is made to resist metope where the existing anchor disk, it is described
First flange disk and the second flange disk are fixed together, and the round boss is positioned with circular groove cooperation, institute
Jack is stated to be held between the chassis with holes and first pressing plate.
9. the two times tensioning method of the existing anchor cable of assembly type according to claim 8, which is characterized in that in two times tensioning
Before, it is arranged anchor dynamometer, second successively on all holding force anchor cables between the first flange disk and the chassis with holes
Pressing plate and the holding force anchor disk make the end of the anchor dynamometer resist the first flange disk, all holding force anchor cable difference
Across the holding force anchor disk, card sets holding force intermediate plate between every holding force anchor cable and the holding force anchor disk.
10. the two times tensioning method of the existing anchor cable of assembly type according to claim 9, which is characterized in that in two times tensioning
Before, positioning column is arranged on the anchor dynamometer, the positioning column is made to be fastened in the anchor dynamometer and second sky
Between heart cylinder.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711439609.9A CN108179745A (en) | 2017-12-27 | 2017-12-27 | The two times tensioning method of the existing anchor cable of assembly type |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711439609.9A CN108179745A (en) | 2017-12-27 | 2017-12-27 | The two times tensioning method of the existing anchor cable of assembly type |
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| CN108179745A true CN108179745A (en) | 2018-06-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201711439609.9A Pending CN108179745A (en) | 2017-12-27 | 2017-12-27 | The two times tensioning method of the existing anchor cable of assembly type |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114541380A (en) * | 2021-09-26 | 2022-05-27 | 浙江省建筑设计研究院 | Slow-bonding prestress anti-floating anchor rod connecting device and construction method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2347504A1 (en) * | 1976-04-05 | 1977-11-04 | Freyssinet Int Stup | Concrete reinforcement cable coupling - has threaded section screwed inside hole of primary cable anchor |
| JPH1150453A (en) * | 1997-08-07 | 1999-02-23 | Kurosawa Kensetsu Kk | Anchorage device of ground anchor head |
| CN102108703A (en) * | 2010-12-20 | 2011-06-29 | 中铁隧道集团有限公司 | Adjustable prestressed anchoring device |
| CN102296605A (en) * | 2011-07-18 | 2011-12-28 | 中铁西北科学院研究所有限公司深圳南方分院 | Device and method for compensating or unloading prestress loads of anchor cable |
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2017
- 2017-12-27 CN CN201711439609.9A patent/CN108179745A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2347504A1 (en) * | 1976-04-05 | 1977-11-04 | Freyssinet Int Stup | Concrete reinforcement cable coupling - has threaded section screwed inside hole of primary cable anchor |
| JPH1150453A (en) * | 1997-08-07 | 1999-02-23 | Kurosawa Kensetsu Kk | Anchorage device of ground anchor head |
| CN102108703A (en) * | 2010-12-20 | 2011-06-29 | 中铁隧道集团有限公司 | Adjustable prestressed anchoring device |
| CN102296605A (en) * | 2011-07-18 | 2011-12-28 | 中铁西北科学院研究所有限公司深圳南方分院 | Device and method for compensating or unloading prestress loads of anchor cable |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114541380A (en) * | 2021-09-26 | 2022-05-27 | 浙江省建筑设计研究院 | Slow-bonding prestress anti-floating anchor rod connecting device and construction method thereof |
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Application publication date: 20180619 |