CN202969378U - Detachable anchor cable - Google Patents
Detachable anchor cable Download PDFInfo
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- CN202969378U CN202969378U CN 201220628491 CN201220628491U CN202969378U CN 202969378 U CN202969378 U CN 202969378U CN 201220628491 CN201220628491 CN 201220628491 CN 201220628491 U CN201220628491 U CN 201220628491U CN 202969378 U CN202969378 U CN 202969378U
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Abstract
Provided is a detachable anchor cable. An anchor head of the detachable anchor cable comprises a guide sleeve, wherein one end of the guide sleeve is sealed, and the other end of the guide sleeve is fixedly connected with a bearing plate. The bearing plate in the guide sleeve is fixedly connected with a planetary anchor ring, and a plurality of locking static grooves in a semicircular truncated cone shape are arranged on the inner wall of the planetary anchor ring in the axial direction. A sun anchor ring is arranged in the planetary anchor ring, and comprises a plurality of sun ring pieces which correspond to the locking static grooves one to one. Retrieving cables are clamped between the inner walls of the sun ring pieces, and locking moving grooves arranged corresponding to the locking static grooves in a semicircular truncated cone shape are arranged on the outer walls of the sun ring pieces in the axial direction. The locking static grooves and the locking moving grooves form circular truncated cone-shaped locking holes. Openings, close to the bearing plate, of the locking holes are smaller than openings at the other ends of the locking holes. Locking rings are arranged in the locking holes. The locking rings comprise two clamp piece operating cables which are clamped between two clamp pieces, and a plurality of through holes are formed in the bearing plate. The retrieving cables and the operating cables respectively penetrate through the through holes, and all connected with separation sleeve pipes in a sleeved mode. One ends of the separation sleeve pipes are connected to the bearing plate, and the other ends of the separation sleeve pipes are connected to an anchor fixing seat. The retrieving cables and the operating cables respectively penetrate through the separation sleeve pipes and penetrate out of the anchor fixing seat. The detachable anchor cable is simple in structure, and convenient to install and construct.
Description
Technical field
The utility model relates to a kind of anchor cable device, and more particularly, it relates to a kind of bearing capacity greatly and reclaims dismountable anchor cable easily.
Background technology
Prestress anchoraging is used for the various civil engineerings of building foundation pit and ground base enforcement as a kind of technology, from the prestressed anchors of 20 beginnings of the century to the anchoring of the 1950's, the soil nailing technology of the seventies, develop into present Anchor Cable Technique.Anchor Cable Technique at home and abroad all has a wide range of applications, and application relates to water conservancy and hydropower, railway tunnel, highway bridge, industry and civilian construction, mining, environmental improvement, military engineering etc.Temporary supporting with common anchor cable owing to can't reclaiming after the supporting disabler, bury for a long time in underground together with the structure of building, form underground garbage, cause underground environmental pollution, the pile foundation construction in adjacent plot from now on, excavation of foundation pit, on every side the long-term plan in municipal construction, subway work, city and sustainable development etc. are caused and have a strong impact on.Because the common anchor cable president phase occupies the underground space, a lot of countries have begun to limit the use of common anchor cable, thereby use the detachable anchor cable that reclaims, but now a lot of Recyclable anchor rope complex structure, anchor cable is installed and the construction trouble, and workload is large, and recovery time is long.
Chinese patent notification number CN2613519Y, the recovery ground tackle of Recyclable anchor rope in a kind of civil engineering is disclosed, comprise the parts such as urceolus, middle cylinder, interior bar, lateral pin, pin cap, backing plate, cylindrical outer tube wall is provided with many groups of radial holes, be provided with many group radial holes with the inner tube wall correspondence on middle barrel, middle cylinder is realized and being connected of urceolus by lateral pin, interior bar is loaded in middle cylinder axial long hole, have groove on middle cylinder, working cable passes groove and schedules the bottom of reclaiming ground tackle with the ground tackle pin, and recovery line is connected on the interior bar that reclaims ground tackle.Install the recovery ground tackle during work.Steady job rope and recovery line longitudinally weld reinforcing bar on the urceolus surface, and working cable and recovery line colligation bunchy are put sleeve pipe, last cement injection mortar.During recovery, first loosen working cable, shed prestressing force, use the jack tension recovery line, extract interior bar, and then the stretch-draw working cable, and middle cylinder is extracted in urceolus, urceolus is consolidated in the hole of having poured into cement mortar.This anchor device structure is complicated, and component are more, and cost is higher, the installation of ground tackle and recovery trouble, and workload is large, and recovery time is long.
JCE removable anchor and the U-shaped recovery anchor cable of Japan are two kinds more ripe in present Recyclable anchor rope technology, but these two kinds of anchor cables also come with some shortcomings, the anchor head complex structure of JCE removable anchor, cost is higher, is retained in long taking up room greatly of underground metal anchor head.When anchor cable is longer, reclaim difficulty.U-shaped recovery anchor cable steel strand radical must Cheng Shuan, and recovery time is longer, delays the duration.
The utility model content
It is complicated that the utility model has overcome the detachable recovery anchor cable structure of prior art, anchor cable is installed and the construction trouble, the deficiency that the anchor cable recovery time is long, a kind of dismountable anchor cable is provided, anchor cable simple in structure, the installation of anchor cable and easy construction, the duration is short, and the required recovery power of anchor cable is little, and the dismounting recovery time is short.Be retained in underground anchor head volume little, take underground space little, little to underground pollution.
in order to solve the problems of the technologies described above, the utility model is by the following technical solutions: a kind of dismountable anchor cable, comprise anchor head, anchorage, connect working cable between anchor head and anchorage, anchor head comprises fairlead, fairlead one end sealing, the other end is fixedly connected with bearing plate, be fixedly connected with the planet anchor ring on bearing plate in fairlead, planet anchor ring inwall is axially arranged with the quiet groove of locking of several half truncated cone-shaped, be provided with sun anchor ring in the planet anchor ring, connect recovery line in sun anchor ring, sun anchor ring comprises that several are separated from each other also and lock quiet groove sun ring plate one to one, recovery line is clamped between sun ring plate inwall, be provided with the gap between adjacent two sun ring plates, be axially arranged with and lock the moving groove of locking of half truncated cone-shaped that quiet groove is oppositely arranged on sun ring plate outer wall, the moving groove of the quiet groove of the locking that is oppositely arranged and locking consists of the locking hole of truncated cone-shaped together, the opening of the close bearing plate of locking hole is less than the opening of the other end, be provided with the truncated cone-shaped retaining ring adaptive with locking hole in locking hole, connect working cable in retaining ring, retaining ring comprises two and half truncated cone-shaped and the intermediate plate that is separated from each other, be provided with the gap between two intermediate plates, working cable is clamped between two intermediate plates, bearing plate is provided with several through holes that is used for connecting recovery line and working cable, recovery line and working cable run through respectively through hole, all be socketed with disrance sleeve on working cable and recovery line, disrance sleeve one end is connected on bearing plate, the other end is connected on anchorage, and recovery line and working cable run through respectively disrance sleeve and pass anchorage.
By the cooperation of sun anchor ring, planet anchor ring and retaining ring, working cable and recovery line are locked in anchor head.Locking hole is truncated cone-shaped, opening near the bearing plate end is less, retaining ring is the truncated cone-shaped adaptive with locking hole, retaining ring coordinates with the locking hole wedge lock, in working cable stretch-draw, by the frictional force between working cable and retaining ring inwall, working cable is clamped between two intermediate plates tightly, working cable more pulls outward, the intermediate plate clamping must be tighter, guarantees the work of working cable safety.All be socketed disrance sleeve on working cable and recovery line, prevent that slurries are seeped on working cable and recovery line, facilitate recovery operation rope and recovery line.When anchor cable reclaims, first with the outside stretch-draw recovery line of jack, pull out loose two sun ring plates, shed the coupling mechanism force between sun anchor ring and retaining ring, thereby shed the chucking power between retaining ring and working cable, then just can outwards pull out with hand and draw the recovery operation rope, preserve after the classification cleaning, in order to reuse.Be trapped in underground only have anchor head and disrance sleeve after anchor cable reclaims, the volume of anchor head is little, and disrance sleeve is the plastic pipe degradable, thus anchor head and disrance sleeve take up room little, little to underground pollution.Detachable recovery anchor cable structure is simple, and it is convenient to install and reclaim, and is retained in underground anchor head and disrance sleeve little to underground pollution.
As preferably, anchorage be provided with on several and bearing plate through hole one to one truncated cone-shaped portal, portal near the opening of the anchor head end opening less than the other end, be provided with in portalling and the adaptive spacing ring that portals, working cable and recovery line are connected in spacing ring, spacing ring comprises two and half truncated cone-shaped and the fixture block that is separated from each other, and working cable and recovery line all are clamped between two fixture blocks; Anchorage is provided with bellows near the anchor head side, and working cable and recovery line all are arranged in bellows.Spacing ring and the wedge lock of portalling coordinate, working cable and recovery line all are clamped between two fixture blocks of spacing ring, in the process that anchor cable reclaims, outside stretch-draw recovery line or working cable, the large end that portals due to truncated cone-shaped is arranged on the outside, therefore outwards stretch-draw and can inwardly not pulling back of recovery line or working cable, spacing ring and the spacing phenomenon that prevents that pulling back from appearring in recovery line or working cable of the locking of portalling make the recovery of anchor cable more convenient.Bellows is set on anchorage, working cable and recovery line all are arranged in bellows near the part of anchorage, after cement paste waters admittedly, working cable in bellows and recovery line can not watered firmly solid, that end that has guaranteed the close anchorage of working cable has enough activity point of view and activity space, and the use of working cable is more flexible.After anchor cable reclaims, bellows is trapped in the body that thes cement solidifies, and because bellows can be degraded, and bellows only only has a bit of, therefore little to underground pollution.
As preferably, be provided with vertically some holding tanks on the retaining ring inwall, all holding tanks consist of zigzag cross section structure together.Holding tank has increased the chucking power between retaining ring inwall and working cable, and working cable is clamped between two intermediate plates tightly.
As preferably, two sun ring plate inwalls are equipped with some horizontal oil grooves and some vertical oil grooves, laterally oil groove and vertically oil groove intersect and be communicated with.The horizontal oil groove of sun ring plate inwall and vertically add lubrication oil in oil groove, recovery line have the lubrication of lubrication oil between due to sun ring plate inwall and recovery line in the process that reclaims, therefore reclaim more laborsaving convenience.
As preferably, bearing plate is fixedly connected with spiral reinforced steel near the anchorage end, and disrance sleeve all is arranged on spiral reinforced steel inner ring.Reinforced steel has increased the cement solidifies intensity of body of anchor head position, has increased the bearing capacity of the body that thes cement solidifies.Reinforced steel axially only has a bit of along anchor hole, so anchor cable reclaims the post-reinforcing reinforcing bar, and to be trapped in underground pollution little.
As preferably, be equipped with link slot on the outer wall of two intermediate plates away from the bearing plate end, be provided with in two link slots for the elastic tape that connects two intermediate plates; Be connected with tube connector in the through hole of bearing plate, working cable and recovery line all run through tube connector, and disrance sleeve one end is fixed by socket on tube connector.Elastic tape links together two intermediate plates, makes two intermediate plates become an integral body, and the clamping working cable is more reliable.In the through hole of bearing plate, tube connector is set, facilitates on the one hand being connected of disrance sleeve and bearing plate, tube connector is not yielding on the other hand, has guaranteed working cable and recovery line at the straightness accuracy of bearing plate position, makes the clamping of working cable and recovery line more reliable.
As preferably, anchorage comprises Pressure Block and the anchor slab that links together, and Pressure Block is provided with press detection sensor near anchor head between Pressure Block and anchor slab.The change in length amount of monitoring rope and recovery line at any time after press detection sensor facilitates anchor cable to install guarantees that anchor cable uses safety.
As preferably, lock quiet groove and be provided with two, settings that be uniformly distributed along the circumference of two quiet grooves of locking, sun ring plate is provided with two, and sun ring plate cross section is the semicircle annular, two working cables of connection on anchor head.Another kind of scheme lock quiet groove and is provided with four, settings that be uniformly distributed along the circumference of four quiet grooves of locking, and sun ring plate is provided with four, and it is that the semicircles of 90 degree are annular that sun ring plate cross section is central angle, four working cables of connection on anchor head.Connect two, three, four, five, the even more working cable of the six roots of sensation in actual design according to construction requirement, to satisfy the needs of construction on anchor head.Make the use of anchor cable more flexible.
The construction technology of dismountable anchor cable comprises the following steps:
The first step, boring: utilize rig to hole in the soil body, reaming is carried out in the position at the bottom of the hole, reaming forms columned enlarged footing, to soil body inject high pressure cement paste, cement paste and the soil body fully mix in boring and reaming, form the cement-soil anchoring body, the backed off after random rig is completed in reaming, forms the anchor hole of T shape in the soil body;
Second step, anchor cable is installed: after T shape anchor hole had bored, the anchor head end with dismountable anchor cable inserted in anchor hole immediately, after anchor head is encountered at the bottom of the hole toward reclaiming certain distance, be provided with the gap between making at the bottom of the hole of anchor head and anchor hole, and anchor head is positioned at the enlarged footing position, anchorage is arranged on the openend of anchor hole;
The 3rd step, slip casting: neat slurry is injected anchor hole bottom, the less mixed serum of original severe is extruded until the anchor hole opening glows cement paste;
The 4th step, maintenance: wait for that cement paste solidifies hardening;
The 5th step, anchorage cable stretching test: solidify after compressive strength reaches setting until cement paste, the all working rope is carried out once rear grading tension of the 50% pre-stretch-draw of load, carry out successively 10% load, 100% load and 110% load stretch-draw, kept 5 minutes working cable non-displacement phenomenon being stretched under 110% load;
The 6th step, construction monitoring: after anchorage cable stretching test is completed by the press detection sensor detected pressures between Pressure Block and anchor slab, press detection sensor obtains stable initial value after working cable and anchorage locking, every day is by the variation of the variation monitoring working cable elongation of press detection sensor reading, the variation per day of working cable is no more than 2mm, and the accumulative total variable of working cable is no more than 20mm;
In the 7th step, anchor cable reclaims: be pulled outwardly recovery line with jack, pull out sun ring plate and intermediate plate in loose anchor head, shed the prestressing force of working cable, then pull out working cable with hand, preserve after the classification cleaning, in order to reuse.
To soil body inject high pressure cement paste, cement paste and the soil body fully mix, and clay is fixed, and facilitate drilling operation in boring.Anchor hole is T shape, and after cement paste solidified, the piece that thes cement solidifies was T-shaped, and bellend plays position-limiting action in the soil body, makes the piece that thes cement solidifies can bear larger pulling force.Anchor head is inserted into anchor hole encounter at the bottom of the hole after toward reclaiming certain distance, inject neat slurry in anchor hole, the mixed serum that original severe is less is extruded, and has increased the bearing capacity after cement paste solidifies.And certain distance is arranged between at the bottom of anchor head and hole, after cement paste solidified, anchor head was combined in the body that thes cement solidifies fully, was beneficial to the fixing of anchor head.Anchor cable is carried out pulling test and construction monitoring, meet design requirement with the installation that guarantees anchor cable, safe and reliable.The process that anchor cable reclaims is first with the outside stretch-draw recovery line of jack, pull out loose two sun ring plates, shed the coupling mechanism force between sun anchor ring and retaining ring, thereby shed the chucking power between retaining ring and working cable, then just can outwards pull out with hand and draw the recovery operation rope, preserve after the classification cleaning, in order to reuse.The installation of anchor cable and easy construction, the duration is short, and the required recovery power of anchor cable is little, and recovery time is short, and it is convenient to reclaim.
The columned enlarged footing axial length that first step reaming forms is 2m-2.5m; The aperture of anchor hole enlarged footing part is 600mm-800mm, and the aperture of anchor hole other parts is 130mm-300mm.Anchor head is arranged on larger enlarged footing position, has been frozen into the larger piece that thes cement solidifies at enlarged footing position cement paste, guarantees larger bearing capacity.
The water ash weight ratio 0.45-0.5 of neat slurry in the 3rd step.The water/binder ratio of neat slurry is moderate, is conducive to solidifying of cement paste, the intensity of the piece that guarantees to the cement solidifies.
Compared with prior art, the beneficial effects of the utility model are: (1) anchor cable simple in structure, and the installation of anchor cable and easy construction, the construction period is short, and the required recovery power of anchor cable is little, and the dismounting recovery time is short, and it is convenient to reclaim; (2) be retained in underground anchor head volume little, take underground space little, little to underground pollution; (3) anchor head is large to the chucking power of working cable, and clamping is reliable, makes working cable can bear larger load; (4) working cable and recovery line can reuse, and reduce costs.
Description of drawings
Fig. 1 is a kind of structural representation of the present utility model;
Fig. 2 is the sectional view of anchor head of the present utility model;
Fig. 3 is the structural representation of intermediate plate inwall of the present utility model;
Fig. 4 is the A-A sectional view of Fig. 2 of the present utility model in embodiment 1;
Fig. 5 is the structural representation of the planet anchor ring of embodiment 1 of the present utility model;
Fig. 6 is the structural representation of the sun ring plate of embodiment 1 of the present utility model;
Fig. 7 is the A-A sectional view of Fig. 2 of the present utility model in embodiment 2;
Fig. 8 is the structural representation of the planet anchor ring of embodiment 2 of the present utility model;
Fig. 9 is the structural representation of the sun ring plate of embodiment 2 of the present utility model;
Figure 10 is the structural representation of construction technology of the present utility model;
In figure: 1, anchor head, 2, anchorage, 3, working cable, 4, fairlead, 5, bearing plate, 6, the planet anchor ring, 7, lock quiet groove, 8, sun anchor ring, 9, recovery line, 10, sun ring plate, 11, the moving groove of locking, 12, retaining ring, 13, intermediate plate, 14, through hole, 15, tube connector, 16, disrance sleeve, 17, portal, 18, spacing ring, 19, fixture block, 20, bellows, 21, holding tank, 22, anchor hole, 23, enlarged footing, 24, link slot, 25, elastic tape, 26, Pressure Block, 27, anchor slab, 28, reinforced steel.
The specific embodiment
Below by specific embodiment, and by reference to the accompanying drawings, the technical solution of the utility model is further described specifically:
Embodiment 1: a kind of dismountable anchor cable (referring to accompanying drawing 1) comprises that anchor head 1(is referring to accompanying drawing 2), anchorage 2, connect working cable 3 between anchor head and anchorage.Anchor head comprises fairlead 4, and the fairlead cross section takes the shape of the letter U, fairlead one end sealing, and the other end is fixedly connected with bearing plate 5, and bearing plate is welded on the openend of fairlead.Be fixedly connected with annular planet anchor ring 6(referring to accompanying drawing 5 on bearing plate in fairlead), 7, two quiet grooves of locking of the quiet groove of locking that planet anchor ring inwall is axially arranged with two and half truncated cone-shaped setting that is uniformly distributed along the circumference.Be provided with sun anchor ring 8 in the planet anchor ring, sun anchor ring outer ring and planet anchor ring inner ring are adaptive, connect recovery line 9 in sun anchor ring.Sun anchor ring comprise two be separated from each other and and locking quiet groove one to one sun ring plate 10(referring to accompanying drawing 4, accompanying drawing 6), sun ring plate cross section semicircular in shape, recovery line is clamped in the centre position between sun ring plate inwall, be provided with the gap between adjacent two sun ring plates, the inwall of sun ring plate is provided with arc groove, recovery line is clamped in the arc groove of two sun ring plates, and the part that recovery line is clamped in sun anchor ring is cylindrical.Two sun ring plate inwalls are equipped with some horizontal oil grooves and some vertical oil grooves (not marking in figure), laterally oil groove and the vertically crossing connection of oil groove, laterally adding lubrication oil in oil groove and vertical oil groove, recovery line has the lubrication of lubrication oil between due to sun ring plate inwall and recovery line in the process that reclaims, therefore reclaim more laborsaving convenience.Be axially arranged with and lock the moving groove 11 of locking of half truncated cone-shaped that quiet groove is oppositely arranged on sun ring plate outer wall, the moving groove of the quiet groove of the locking that is oppositely arranged and locking consists of the locking hole of truncated cone-shaped together, the opening of the close bearing plate of locking hole is less than the opening of the other end, be provided with the truncated cone-shaped retaining ring 12 adaptive with locking hole in locking hole, the cross section of retaining ring is annular, the upper end of retaining ring is arranged on the outside of the large end opening of locking hole, connects working cable in retaining ring.Retaining ring comprise two and half truncated cone-shaped and intermediate plate 13, two intermediate plates that are separated from each other between be provided with the gap, working cable is clamped between two intermediate plates.Be provided with vertically some holding tank 21(referring to accompanying drawing 3 on two intermediate plate inwalls of retaining ring), all holding tanks consist of zigzag cross section structure together, and holding tank has increased the chucking power of intermediate plate clamping working cable, makes working cable can bear larger bearing capacity.Be equipped with the elastic tape 25 that is provided with in link slot 24, two link slots for connecting two intermediate plates on the outer wall of two intermediate plates away from the bearing plate end.Bearing plate is provided with three through holes 14 that are used for connecting recovery line and working cable, and recovery line and working cable run through respectively through hole, all are socketed with plastic barrier sleeve pipe 16 on working cable and recovery line.Be connected with tube connector 15 in the through hole of bearing plate, tube connector is fixedly connected in through hole.Working cable and recovery line all run through tube connector.Disrance sleeve one end is fixed by socket on tube connector and with bearing plate and is connected, and the other end is connected on anchorage, and recovery line and working cable run through respectively disrance sleeve and pass anchorage.Tube connector stretches out on the outer wall of through hole and axially equidistantly is provided with some limited impressions, and after disrance sleeve is connected with tube connector, limited impression has played spacing effect, makes disrance sleeve more reliable with being connected of tube connector.Tube connector is not yielding, has guaranteed working cable and recovery line at the straightness accuracy of bearing plate position, makes the clamping of working cable and recovery line more reliable.Bearing plate is fixedly connected with spiral reinforced steel 28 near the anchorage end, and disrance sleeve all is arranged on spiral reinforced steel inner ring.Reinforced steel has increased the cement solidifies intensity of body of anchor head position, has increased the bearing capacity of the body that thes cement solidifies.
Anchorage be provided with on three and bearing plate through hole one to one truncated cone-shaped portal 17, anchorage comprises Pressure Block 26 and the anchor slab 27 that links together, Pressure Block is provided with press detection sensor near anchor head between Pressure Block and anchor slab.The change in length amount of monitoring rope and recovery line at any time after press detection sensor facilitates anchor cable to install guarantees that anchor cable uses safety.Portal and be arranged on anchor slab, be provided with on Pressure Block and the connecting hole one to one that portals, portal near the opening of the anchor head end opening less than the other end, be provided with in portalling and the adaptive spacing ring 18 that portals, working cable and recovery line run through respectively the connecting hole of Pressure Block and are connected in spacing ring, the fixture block 19 that spacing ring comprises two and half truncated cone-shaped and is separated from each other, the cross section semicircular in shape of fixture block, working cable and recovery line all are clamped between two fixture blocks; Anchorage is provided with bellows 20 near the anchor head side, and working cable and recovery line all are arranged in bellows.Spacing ring and the wedge lock of portalling coordinate, working cable and recovery line all are clamped between two fixture blocks of spacing ring, in the process that anchor cable reclaims, outside stretch-draw recovery line or working cable, the large end that portals due to truncated cone-shaped is arranged on the outside, therefore outwards stretch-draw and can inwardly not pulling back of recovery line or working cable, spacing ring and the spacing phenomenon that prevents that pulling back from appearring in recovery line or working cable of the locking of portalling make the recovery of anchor cable more convenient.Bellows is set on anchorage, working cable and recovery line all are arranged in bellows near the part of anchorage, after cement paste waters admittedly, working cable in bellows and recovery line can not watered firmly solid, that end that has guaranteed the close anchorage of working cable has enough activity point of view and activity space, and the use of working cable is more flexible.
A kind of construction technology of dismountable anchor cable (referring to accompanying drawing 10) is at first holed, and uses the high-pressure rotary-spray rig to hole in the soil body, when hole drill after the 20m at the bottom of the hole position carry out reaming, reaming forms columned enlarged footing 23.The columned enlarged footing axial length that reaming forms is 2m-2.5m, and in the present embodiment, the enlarged footing axial length is 2m.In boring and reaming by rotary jetting apparatus to soil body inject high pressure cement paste, cement paste and the soil body fully mix, formation cement-soil anchoring body.The inject high pressure cement paste is fixed clay, facilitates drilling operation.Backed off after random high-pressure rotary-spray rig is completed in reaming, forms the anchor hole 22 of T shape in the soil body, and anchor hole is obliquely installed, and the axis of anchor hole and horizontal plane are at a certain angle by designing requirement.The aperture of anchor hole enlarged footing part is 600mm-800mm, and the aperture of anchor hole other parts is 130mm-300mm, and in the present embodiment, the aperture of anchor hole enlarged footing part is 700mm, and the aperture of anchor hole other parts is 150mm.
Then carrying out anchor cable installs, after T shape anchor hole has bored, anchor head end with dismountable anchor cable inserts in anchor hole immediately, after anchor head is encountered at the bottom of the hole toward reclaiming certain distance, be generally 50cm, be provided with the gap between making at the bottom of the hole of anchor head and anchor hole, and anchor head is positioned at the enlarged footing position, anchorage is arranged on the openend of anchor hole.If meet obstructions in the process of anchor hole anchor cable is inserted, must first anchor cable be taken out, after being enlarged processing, again anchor cable is inserted in anchor hole anchor hole.Must guarantee to have put disrance sleeve on recovery line and working cable in this process, prevent that recovery line and working cable directly are set in cement paste and bad recovery.
Carry out slip casting after the anchor cable installation, neat slurry is injected anchor hole bottom, the less mixed serum of original severe is extruded until the anchor hole opening glows cement paste.The water ash weight ratio 0.45-0.5 of neat slurry, in the present embodiment, the water of neat slurry ash weight ratio is 0.45.Then carry out maintenance, wait for that cement paste solidifies hardening and forms the body that thes cement solidifies, whole anchor cable is combined in the body that thes cement solidifies firmly.
Then carry out the anchorage cable stretching test, solidify after compressive strength reaches setting until cement paste, the all working rope is carried out once rear grading tension of the 50% pre-stretch-draw of load together, load value is set according to designing requirement, carry out successively 10% load, 100% load and 110% load stretch-draw, kept 5 minutes working cable non-displacement phenomenon being stretched under 110% load.Next carry out construction monitoring, after anchorage cable stretching test is completed by the press detection sensor detected pressures between Pressure Block and anchor slab, press detection sensor obtains stable initial value after working cable and anchorage locking, every day is by the variation of the variation monitoring working cable elongation of press detection sensor reading, the variation per day of working cable is no more than 2mm, and the accumulative total variable of working cable is no more than 20mm.According to formula
Δ L=(PL)/(EA), calculate the elongation of working cable, in formula, Δ L is elongation, and P is prestressing force, the locking load of namely reading from press detection sensor, L is the length of working cable, the length of working cable from the anchor head end to the anchorage end namely, and E is the modulus of elasticity of working cable, this is a fixed value, A is the cross-sectional area of working cable, and what detect in the present embodiment is with all working rope coupling mechanism force together, thus cross-sectional area A be all working rope cross-sectional area and.Calculate variation per day and the accumulative total variable of working cable according to following formula, variation per day is no more than 2mm, and the accumulative total variable is no more than 20mm and namely meets design requirement, and anchor cable can be used safely.
Because anchor cable is callable, anchor cable reclaims after using, be pulled outwardly recovery line with jack, pull out sun ring plate and intermediate plate in loose anchor head, shed the prestressing force of working cable, recovery line is pulled out 10-15cm, then pull out working cable with hand, preserve after the classification cleaning, in order to reuse.
Embodiment 2: a kind of dismountable anchor cable, its structure is similar to embodiment 1, main difference point is in the structure of planet anchor ring, sun anchor ring and anchorage, in the present embodiment, planet anchor ring inwall is axially arranged with the quiet groove 7(of locking of four and half truncated cone-shaped referring to accompanying drawing 8), the setting that is uniformly distributed along the circumference of four quiet grooves of locking.Be provided with sun anchor ring 8 in the planet anchor ring, sun anchor ring outer ring and planet anchor ring inner ring are adaptive, connect recovery line 9 in sun anchor ring.Sun anchor ring comprise four be separated from each other and and locking quiet groove one to one sun ring plate 10(referring to accompanying drawing 7, accompanying drawing 9), sun ring plate cross section is the fan annular that central angle is 90 degree, recovery line is clamped in the centre position between sun ring plate inwall, be provided with the gap between adjacent two sun ring plates, the inwall of sun ring plate is provided with arc groove, recovery line is clamped in the arc groove of four sun ring plates, and the part that recovery line is clamped in sun anchor ring is cylindrical.Four working cables and a recovery line are arranged in the present embodiment.Connect two, three, four, five, the even more working cable of the six roots of sensation in actual design according to construction requirement, to satisfy the needs of construction on anchor head.Therefore according to the difference of working cable quantity, be provided with portalling of varying number on anchorage, four working cables are arranged in the present embodiment, arranging five on anchorage portals, and connecting hole is five of relative set also.Other structure is identical with embodiment 1.
A kind of construction technology of dismountable anchor cable, its processing step is similar to embodiment 1, the main difference point is, in the present embodiment, the enlarged footing axial length is 2.5m, the aperture of anchor hole enlarged footing part is 600mm, the aperture of anchor hole other parts is 130mm, and the water ash weight ratio that anchor cable installs the neat slurry of grouting is 0.5.Other is identical with embodiment 1.
Above-described embodiment is two kinds of better schemes of the present utility model, is not that the utility model is done any pro forma restriction, also has other variant and remodeling under the prerequisite that does not exceed the technical scheme that claim puts down in writing.
Claims (9)
1. dismountable anchor cable, comprise anchor head (1), anchorage (2), connect working cable (3) between anchor head and anchorage, it is characterized in that, anchor head comprises fairlead (4), fairlead one end sealing, the other end is fixedly connected with bearing plate (5), be fixedly connected with planet anchor ring (6) on bearing plate in fairlead, planet anchor ring inwall is axially arranged with the quiet groove of locking (7) of several half truncated cone-shaped, be provided with sun anchor ring (8) in the planet anchor ring, connect recovery line (9) in sun anchor ring, sun anchor ring comprises that several are separated from each other also and lock quiet groove sun ring plate (10) one to one, recovery line is clamped between sun ring plate inwall, be provided with the gap between adjacent two sun ring plates, be axially arranged with and lock the moving groove (11) of locking of half truncated cone-shaped that quiet groove is oppositely arranged on sun ring plate outer wall, the moving groove of the quiet groove of the locking that is oppositely arranged and locking consists of the locking hole of truncated cone-shaped together, the opening of the close bearing plate of locking hole is less than the opening of the other end, be provided with the truncated cone-shaped retaining ring (12) adaptive with locking hole in locking hole, connect working cable in retaining ring, the intermediate plate (13) that retaining ring comprises two and half truncated cone-shaped and is separated from each other, be provided with the gap between two intermediate plates, working cable is clamped between two intermediate plates, bearing plate is provided with several through holes (14) that is used for connecting recovery line and working cable, recovery line and working cable run through respectively through hole, all be socketed with disrance sleeve (16) on working cable and recovery line, disrance sleeve one end is connected on bearing plate, the other end is connected on anchorage, and recovery line and working cable run through respectively disrance sleeve and pass anchorage.
2. dismountable anchor cable according to claim 1, it is characterized in that, anchorage is provided with the through hole truncated cone-shaped portal (17) one to one on several and bearing plate, portal near the opening of the anchor head end opening less than the other end, be provided with in portalling and the adaptive spacing ring (18) that portals, working cable and recovery line are connected in spacing ring, and the fixture block (19) that spacing ring comprises two and half truncated cone-shaped and is separated from each other, working cable and recovery line all are clamped between two fixture blocks; Anchorage is provided with bellows (20) near the anchor head side, and working cable and recovery line all are arranged in bellows.
3. dismountable anchor cable according to claim 1, is characterized in that, is provided with vertically some holding tanks (21) on the retaining ring inwall, and all holding tanks consist of zigzag cross section structure together.
4. dismountable anchor cable according to claim 1, is characterized in that, two sun ring plate inwalls are equipped with some horizontal oil grooves and some vertical oil grooves, laterally oil groove and the vertically crossing connection of oil groove.
5. according to claim 1 and 2 or 3 or 4 described dismountable anchor cables, is characterized in that, bearing plate is fixedly connected with spiral reinforced steel (28) near the anchorage end, and disrance sleeve all is arranged on spiral reinforced steel inner ring.
6. according to claim 1 and 2 or 3 or 4 described dismountable anchor cables, is characterized in that, is equipped with link slot (24) on the outer wall of two intermediate plates away from the bearing plate end, is provided with in two link slots for the elastic tape (25) that connects two intermediate plates; Be connected with tube connector (15) in the through hole of bearing plate, working cable and recovery line all run through tube connector, and disrance sleeve one end is fixed by socket on tube connector.
7. dismountable anchor cable according to claim 5, is characterized in that, anchorage comprises Pressure Block (26) and the anchor slab (27) that links together, and Pressure Block is provided with press detection sensor near anchor head between Pressure Block and anchor slab.
8. according to claim 2 or 3 or 4 described dismountable anchor cables, is characterized in that, lock quiet groove and be provided with two, and settings that be uniformly distributed along the circumference of two quiet grooves of locking, sun ring plate is provided with two, and sun ring plate cross section is the semicircle annular, two working cables of connection on anchor head.
9. according to claim 2 or 3 or 4 described dismountable anchor cables, is characterized in that, locks quiet groove and be provided with four, the setting that is uniformly distributed along the circumference of four quiet grooves of locking, sun ring plate is provided with four, and sun ring plate cross section is the semicircles annular that central angle is 90 degree, connects four working cables on anchor head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220628491 CN202969378U (en) | 2012-11-23 | 2012-11-23 | Detachable anchor cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220628491 CN202969378U (en) | 2012-11-23 | 2012-11-23 | Detachable anchor cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202969378U true CN202969378U (en) | 2013-06-05 |
Family
ID=48510472
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220628491 Withdrawn - After Issue CN202969378U (en) | 2012-11-23 | 2012-11-23 | Detachable anchor cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202969378U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103046546A (en) * | 2012-11-23 | 2013-04-17 | 浙江中桥预应力设备有限公司 | Detachable anchor cable and construction process thereof |
| CN103639688A (en) * | 2013-12-02 | 2014-03-19 | 神华神东保德煤矿 | Gear sleeve pulling-out device of driving and bolting machine |
| CN104988917A (en) * | 2015-07-14 | 2015-10-21 | 浙江中桥预应力设备有限公司 | High-pressure jet grouting anchor rope inserter and construction method thereof |
| CN106284343A (en) * | 2016-09-20 | 2017-01-04 | 天津大学 | The reusable steel strand anchorage of a kind of convenient dismounting |
| CN106284346A (en) * | 2016-09-20 | 2017-01-04 | 天津大学 | A kind of easy-to-dismount intermediate plate anchorage |
| CN107654574A (en) * | 2017-10-19 | 2018-02-02 | 江阴市蒋氏汽摩部件有限公司 | A kind of easy-to-dismount drag-line |
| CN108442386A (en) * | 2018-05-30 | 2018-08-24 | 中国京冶工程技术有限公司 | A kind of removable core expands body anchor structure device and its assembly construction method |
-
2012
- 2012-11-23 CN CN 201220628491 patent/CN202969378U/en not_active Withdrawn - After Issue
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103046546A (en) * | 2012-11-23 | 2013-04-17 | 浙江中桥预应力设备有限公司 | Detachable anchor cable and construction process thereof |
| CN103046546B (en) * | 2012-11-23 | 2015-03-04 | 浙江中桥预应力设备有限公司 | Detachable anchor cable and construction process thereof |
| CN103639688A (en) * | 2013-12-02 | 2014-03-19 | 神华神东保德煤矿 | Gear sleeve pulling-out device of driving and bolting machine |
| CN104988917A (en) * | 2015-07-14 | 2015-10-21 | 浙江中桥预应力设备有限公司 | High-pressure jet grouting anchor rope inserter and construction method thereof |
| CN106284343A (en) * | 2016-09-20 | 2017-01-04 | 天津大学 | The reusable steel strand anchorage of a kind of convenient dismounting |
| CN106284346A (en) * | 2016-09-20 | 2017-01-04 | 天津大学 | A kind of easy-to-dismount intermediate plate anchorage |
| CN107654574A (en) * | 2017-10-19 | 2018-02-02 | 江阴市蒋氏汽摩部件有限公司 | A kind of easy-to-dismount drag-line |
| CN107654574B (en) * | 2017-10-19 | 2019-05-17 | 江阴市蒋氏汽摩部件有限公司 | A kind of easy-to-dismount drag-line |
| CN108442386A (en) * | 2018-05-30 | 2018-08-24 | 中国京冶工程技术有限公司 | A kind of removable core expands body anchor structure device and its assembly construction method |
| CN108442386B (en) * | 2018-05-30 | 2023-12-12 | 中国京冶工程技术有限公司 | Detachable core expansion anchoring structure device and assembly construction method thereof |
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Granted publication date: 20130605 Effective date of abandoning: 20150304 |
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