CN203891016U - Self-propelled anchor cable and construction device thereof - Google Patents
Self-propelled anchor cable and construction device thereof Download PDFInfo
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- CN203891016U CN203891016U CN201420266797.5U CN201420266797U CN203891016U CN 203891016 U CN203891016 U CN 203891016U CN 201420266797 U CN201420266797 U CN 201420266797U CN 203891016 U CN203891016 U CN 203891016U
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- slip casting
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- type anchor
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Abstract
The utility model provides a self-propelled anchor cable and a construction device thereof and aims to solve the problem that holes are easily collapsed and an existing prestressing anchor cable is hard to construct when in a high-water-head sand layer and a plastic-flow sand stratum. The self-propelled anchor cable comprises a drill stem, a grouting drill and a plurality of steel strand beams, wherein the grouting drill comprises a drill bit and a pipe body with a grout outlet hole, the front ends of the steel strand beams are fixed by a carrying plate, a step hole is sleeved with the center of the carrying plate, a bearing is mounted on a connector, and the diameter of a small hole of the front end of the carrying plate is larger than the inner diameter of the bearing and smaller than the outer diameter of the same. The steel strand beams are arranged on the drill stem through the carrying plate, a steel beam belt can be directly guided into the soil to form the anchor cable during drilling of the drill stem, and the grouting drill injects grout and chambers, so that drilling, cable guiding, grouting and chambering can be integrally constructed, and hole collapse when in the high-water-head sand layer and the plastic-flow sand stratum in the prior art of drilling holes prior to setting the anchor cable is avoided.
Description
Technical field
The utility model relates to the conventional anchor structure of construction engineering technical field and construction equipment, is specifically related to a kind of self-advancing type anchor cable and construction equipment thereof.
Background technology
Along with the quickening of various places urbanization process and the development of auto industry, Basement pit supporting more and more becomes the key technology of construction project.
Prestress anchorage cable is a kind of support unit conventional in pattern foundation pit supporting structure project, first by drilling tool in rock-soil layer internal drilling, again anchor pole is inserted, make its one end be anchored at (anchor head in claiming) in firm rock-soil layer, then at another free end (anchor head outside claiming), carry out stretch-draw, surface layer is exerted pressure unsettled Rock And Soil is carried out to anchoring, and this method claims prestress anchorage cable.When prestress anchorage cable practice of construction; often can run into high water head layer of sand, stream is moulded sand formation condition; a large amount of quicksand stream mud; complete the extracting after drilling tool of holing; quicksand stream mud geological conditions is easy to cause collapse hole, causes anchor pole not insert, and is difficult to construction; and also can cause surface depression, have a strong impact on the safety of foundation ditch safety and surrounding enviroment.
Utility model content
The utility model proposes a kind of self-advancing type anchor cable and construction equipment thereof, will creep into, be with rope, slip casting, reaming integrated construction, can solve that prior art prestress anchorage cable runs into high water head layer of sand, stream is moulded the easy collapse hole of sand formation condition, be difficult to the problem of construction.
In order to reach above-mentioned technical purpose, the technical solution of the utility model is: a kind of self-advancing type anchor cable, comprise the front end slip casting drilling tool that there is the drilling rod in slip casting chamber, is connected by a connection piece with drilling rod and a plurality of steel wire bundles that are positioned at drilling rod periphery, described slip casting drilling tool comprises drill bit and the body with slip casting chamber, and described body is provided with the slurry outlet near drill bit; The front end of described steel wire bundle is fixed by the bearing plate being set on described connector, the shoulder hole of the sheathed hole, center of described bearing plate for being formed by front end aperture and rear end macropore, on described connector, bearing is installed, described bearing is positioned at the rear end macropore in sheathed hole, described bearing plate center, and the front end hole diameter in sheathed hole, described bearing plate center is greater than the internal diameter of described bearing and the body external diameter of described slip casting drilling tool and is less than the external diameter of described bearing.
On described bearing plate, the peripheral circumferential in the sheathed hole of the heart is laid with a plurality of steel beam holes therein, and the front end corresponding inserted of described steel wire bundle is in described steel beam hole and fixed by extruded sleeve.
Circumferential edges place at described bearing plate lays a plurality of gap.
The rear end macropore in the sheathed hole of described bearing and described bearing plate center is matched in clearance.
Described slip casting drilling tool also comprises the one way valve being arranged in its slip casting chamber, and described one way valve is positioned at the rear side of described slurry outlet.
Described self-advancing type anchor cable is placed in while also comprising high-pressure slip-casting in described slip casting chamber for stopping up the rolling element of described one way valve and being arranged on the nozzle on the body of described slip casting drilling tool, described nozzle comprises the nozzle body being communicated with the slip casting chamber of described slip casting drilling tool, is communicated with end pressure membrane is installed on described nozzle body with the slip casting chamber of described slip casting drilling tool.
The utility model has also proposed a kind of self-advancing type anchor cable construction device, comprise high-pressure injection pump, roof-bolter and be arranged on the self-advancing type anchor cable on roof-bolter, described high-pressure injection pump is communicated with drilling rod slip casting chamber and the unidirectional grout drilling tool slip casting chamber of described self-advancing type anchor cable by grouting pipeline, and described self-advancing type anchor cable is above-mentioned self-advancing type anchor cable.
The utility model self-advancing type anchor cable is arranged on steel wire bundle on drilling rod by bearing plate, the body that can directly steel band be buried in the process of rod boring forms anchor cable, and carry out slip casting, reaming by slip casting drilling tool, can realize creep into, with the integrated construction of rope, slip casting, reaming, avoided prior art first to hole creeping into again anchor cable when running into high water head layer of sand, stream causes collapse hole while moulding sand formation condition, is difficult to the problem of construction; Meanwhile, reduce construction equipment, simplified construction technology, improved efficiency of construction, saved engineering cost.
Accompanying drawing explanation
The structural representation that Fig. 1 is;
Fig. 2 is the structural representation of bearing plate in the utility model embodiment;
Fig. 3 is the longitudinal sectional view of Fig. 2;
Fig. 4 is the structural representation of nozzle in the utility model embodiment;
Fig. 5 is the structural representation of the utility model self-advancing type anchor cable construction device.
The specific embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in more detail.
Referring to figs. 1 through Fig. 4, the present embodiment self-advancing type anchor cable, comprises drilling rod 1, is fixed on the slip casting drilling tool 2 of drilling rod 1 front end and is positioned at a plurality of steel wire bundles 3 of drilling rod 1 periphery.Slip casting drilling tool 2 comprises drill bit 2.1 and has the body 2.3 in slip casting chamber 2.2, body 2.3 is provided with the slurry outlet 2.4 near drill bit 2.1, drilling rod 1 is connected by a connection piece 4 with slip casting drilling tool 2, and the slip casting chamber 1.1 of drilling rod 1 is communicated with the slip casting chamber 2.2 of slip casting drilling tool 2, forms complete slip casting passage; The front end of steel wire bundle 3 is fixing by a bearing plate 5, bearing plate 5 is a circular steel plate or other hard laminates, be set on connector 4, the stepped hole of sheathed hole, its center for being formed by front end aperture 5.1 and rear end macropore 5.2, bearing 6 is installed on connector 4, and the rear end macropore 5.2 that it is positioned at bearing plate 5, is specifically positioned at the stepped portions in sheathed hole, stepped center, and, be also less than the external diameter of bearing 6 simultaneously.So, in drilling rod 1 drilling process, bearing plate 5 can be stopped by bearing 6, can not move to the rear extreme direction of drilling rod 1, and then can advance and successfully bring the soil body in process and form anchor cable with drilling rod 1, connector 4 and slip casting drilling tool 2; After slip casting to be sprayed, while extracting drilling rod 1 and slip casting drilling tool 2, owing to the diameter of the front end aperture 5.1 of bearing plate 5 being greater than to the external diameter of body 2.3, can not take bearing plate 5 out of, steel wire bundle 3, bearing plate 5 are kept somewhere and in soil layer, carried out anchoring, drilling rod 1 can be reused with slip casting drilling tool 2, greatly reduces equipment cost.
In addition, bearing 6 plays and slides and drive the effect of advancing, in drilling rod 1, slip casting drilling tool 2 rotary drilling processes, before guaranteeing 3 of bearing plate 5 and steel wire bundles and then do not follow rotation; Connector 4 is the female short steel pipes of two ends tool, and its one end is threaded with drilling rod 1, and the other end is connected with slip casting drilling tool 2 by screw thread 7, has guaranteed connection reliability; The drill bit preferred alloy drill bit of slip casting drilling tool 2, more easily creeps into and has a higher durability.
Steel wire bundle fixedly selecting at bearing plate 5 circumference on bearing plate 5 laid a plurality of steel beam holes 5.3, a plurality of steel beam holes 5.3 are positioned at the periphery in the sheathed hole, center of bearing plate 5, and the front end corresponding inserted of steel wire bundle 3 is fixed by extruded sleeve 8 in steel beam hole 5.3 and respectively.Certainly, also can adopt other fixed forms, such as welding etc., at this, do not do concrete restriction.Meanwhile, the resistance when reducing to creep into, lays a plurality of gap 5.4 at the circumferential edges place of bearing plate 5, and, in drilling process, sand can outwards be gushed out from gap 5.4, reduces to creep into resistance.
After spraying slip casting, the extracting of drilling rod 1 and slip casting drilling tool 2, bearing 6 is matched in clearance with the rear end macropore 5.2 of bearing plate 5, has certain interval, avoids producing frictional force.
Sand when preventing from stopping slip casting or extension drill rod 1 outside slip casting drilling tool 2 flows in drilling tool and stops up slurry outlet 2.4, and in the present embodiment, slip casting drilling tool 2 also comprises the one way valve 2.5 being arranged in its slip casting chamber 2.2, and one way valve 2.5 is positioned at the rear side of slurry outlet 2.4.One way valve 2.5 can only be opened to slurry outlet 2.4 place directions, and while creeping into, slurries are poured into slurry outlet 2.4 places by one way valve 2.5, and one way valve 2.5 can stop the sand outside drilling tool to flow in drilling tool while stopping slip casting or extension drill rod.
Due in drilling process, the sand amount of gushing out is larger, except easy obstruction slurry outlet 2.4, also can cause larger resistance, for removing as much as possible sand, the present embodiment self-advancing type anchor cable also comprises that rolling element 9(is such as steel ball etc.) and be arranged on the nozzle 10 on the body 2.3 of slip casting drilling tool 2; Nozzle 10 comprises the nozzle body 10.1 being communicated with the slip casting chamber 2.2 of slip casting drilling tool 2, on nozzle body 10.1, with the end that is communicated with in slip casting chamber 2.2, pressure membrane 10.2 is installed.Pressure membrane 10.2 is for bearing plastic foil or other material film bodies that pressure is 10-15MPa, in drilling process, can first pass into clear water or the slurries of low pressure, clear water or slurries are gushed out outside drilling tool by one way valve 2.5 and slurry outlet 2.4, and drilling rod 1 drives steel wire bundle 3 deeply to creep into sandy soils is predetermined, when creep into residue 1-2 while propping up drilling rod 1 by designing requirement, from the outer end of drilling rod 1, put into rolling element 9, under himself gravity, be rolled to one way valve 2.5 places and block one way valve, high-pressure pump is 2.2 conveying high-pressure slurries to slip casting chamber, when the slurries of carrying reach (general 10-15MPa) after certain pressure, the limit that reaches pressure membrane 10.2 is born pressure, pressure membrane 10.2 is broken, slurries eject from nozzle body 10.1, sand high pressure cutting towards periphery, continuing (10-20cm/min) at a slow speed creeps into drilling rod 1 forward and rotary-jet slurries, pressure remains on 15-35MPa, until projected depth.
The installation of pressure membrane 10.2 is with the end that is communicated with in slip casting chamber 2.2, installation groove 10.3 to be set on nozzle body 10.1, groove 10.3 is installed to be communicated with nozzle body 10.1 and to install and in groove 10.3, be installed with the compression short tube 10.4 coordinating with its inner wall sealing, compress short tube 10.4 and adopt thin-wall steel tube, fix by gluing with nozzle body 10.1, thereby pressure membrane 10.2 is pressed on nozzle body 10.1.
With reference to Fig. 5, the present embodiment has also proposed a kind of self-advancing type anchor cable construction device, comprise the self-advancing type anchor cable M on high-pressure injection pump 11, roof-bolter 12 and roof-bolter 12, high-pressure injection pump 11 is communicated with the slip casting chamber 1.1 of the drilling rod 1 of self-advancing type anchor cable M and the slip casting chamber 2.2 of slip casting drilling tool 2 by grouting pipeline 13, the concrete structure of self-advancing type anchor cable M, does not repeat them here to the description of accompanying drawing 3 referring to the embodiment of the utility model self-advancing type anchor cable and accompanying drawing 1.
Concrete, adopt best construction method and the step of the present embodiment self-advancing type anchor cable construction device as follows:
(1) roof-bolter uses drilling tool by curtain pile perforate;
(2) steel wire bundle assembling, slip casting drilling tool are fixed on drilling rod, in drilling process, by grouting pump with low pressure clear water or slurries to drill supply, clear water or slurries are gushed out by one way valve beyond drill bit, the anchor cable that drilling rod band steel wire bundle forms creeps into sandy soils desired depth;
(3) when creep into residue 1-2 while propping up drilling rod by design, from drilling rod outer end, put into rolling element and stop up one way valve, high-pressure injection pump is to body of rod conveying high-pressure slurries, when the slurries of carrying reach (general 10-15MPa) after certain pressure, the pressure membrane at nozzle place is broken, and slurries penetrate from nozzle, sand high pressure cutting towards periphery, continue at a slow speed (10-20cm/min) drilling rod to be crept into forward and rotary-jet slurries, pressure remains on 15-35MPa, until projected depth;
(4) injection slip casting is complete, extracts section by section drilling rod and slip casting drilling tool, and steel wire bundle, bearing plate are kept somewhere in sandy soils, and drilling rod and slip casting drilling tool are reused;
(5) the complete waist rail of building of anchor cable construction, solidifies after 7-28 days until anchoring section slurries, installs billet, by designing requirement, anchor cable is carried out to prestressed stretch-draw locking.
The above, it is only preferred embodiment of the present utility model, be not the utility model to be done to the restriction of other form, any those skilled in the art may utilize the technology contents of above-mentioned announcement to be changed or be modified as the equivalent embodiment of equivalent variations.But every technical solutions of the utility model content that do not depart from, any simple modification, equivalent variations and the remodeling above embodiment done according to technical spirit of the present utility model, still belong to the protection domain of technical solutions of the utility model.
Claims (7)
1. a self-advancing type anchor cable, it is characterized in that: comprise the front end slip casting drilling tool that there is the drilling rod in slip casting chamber, is connected by a connection piece with drilling rod and a plurality of steel wire bundles that are positioned at drilling rod periphery, described slip casting drilling tool comprises drill bit and the body with slip casting chamber, and described body is provided with the slurry outlet near drill bit; The front end of described steel wire bundle is fixed by the bearing plate being set on described connector, the shoulder hole of the sheathed hole, center of described bearing plate for being formed by front end aperture and rear end macropore, on described connector, bearing is installed, described bearing is positioned at the rear end macropore in sheathed hole, described bearing plate center, and the front end hole diameter in sheathed hole, described bearing plate center is greater than the internal diameter of described bearing and the body external diameter of described slip casting drilling tool and is less than the external diameter of described bearing.
2. self-advancing type anchor cable according to claim 1, is characterized in that: on described bearing plate, the peripheral circumferential in the sheathed hole of the heart is laid with a plurality of steel beam holes therein, and the front end corresponding inserted of described steel wire bundle is in described steel beam hole and fixed by extruded sleeve.
3. self-advancing type anchor cable according to claim 2, is characterized in that: the circumferential edges place at described bearing plate lays a plurality of gap.
4. self-advancing type anchor cable according to claim 2, is characterized in that: the rear end macropore in the sheathed hole of described bearing and described bearing plate center is matched in clearance.
5. self-advancing type anchor cable according to claim 1, is characterized in that: described slip casting drilling tool also comprises the one way valve being arranged in its slip casting chamber, and described one way valve is positioned at the rear side of described slurry outlet.
6. self-advancing type anchor cable according to claim 5, it is characterized in that: described self-advancing type anchor cable is placed in while also comprising high-pressure slip-casting in described slip casting chamber for stopping up the rolling element of described one way valve and being arranged on the nozzle on the body of described slip casting drilling tool, described nozzle comprises the nozzle body being communicated with the slip casting chamber of described slip casting drilling tool, is communicated with end pressure membrane is installed on described nozzle body with the slip casting chamber of described slip casting drilling tool.
7. a self-advancing type anchor cable construction device, comprise high-pressure injection pump, roof-bolter and be arranged on the self-advancing type anchor cable on roof-bolter, described high-pressure injection pump is communicated with the drilling rod slip casting chamber of described self-advancing type anchor cable and the slip casting chamber of unidirectional grout drilling tool by grouting pipeline, it is characterized in that: described self-advancing type anchor cable is the self-advancing type anchor cable described in any one in claim 1 to 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420266797.5U CN203891016U (en) | 2014-05-23 | 2014-05-23 | Self-propelled anchor cable and construction device thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420266797.5U CN203891016U (en) | 2014-05-23 | 2014-05-23 | Self-propelled anchor cable and construction device thereof |
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| Publication Number | Publication Date |
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| CN203891016U true CN203891016U (en) | 2014-10-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420266797.5U Expired - Fee Related CN203891016U (en) | 2014-05-23 | 2014-05-23 | Self-propelled anchor cable and construction device thereof |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104895072A (en) * | 2015-04-08 | 2015-09-09 | 中国建筑第八工程局有限公司 | A pre-stressed anchor cable and a pre-stressed anchor cable one-time forming construction method |
| CN106759320A (en) * | 2016-12-29 | 2017-05-31 | 柳州欧维姆机械股份有限公司 | Combined bearing plate, uniform pressure distribution type anchor cable and its installation method |
| CN108343056A (en) * | 2018-02-08 | 2018-07-31 | 北京方圆恒基岩土工程技术有限公司 | Reinforced cement-soil anchor bolt |
| CN109853544A (en) * | 2019-03-29 | 2019-06-07 | 华侨大学 | A kind of combination bearing plate and anchor pole that can enhance front and back injecting cement paste |
| CN110468827A (en) * | 2019-08-22 | 2019-11-19 | 中冶交通建设集团有限公司 | It is bored for the jet nozzle of slip casting and slip casting |
| CN113503171A (en) * | 2021-08-11 | 2021-10-15 | 中电建路桥集团有限公司 | Guiding self-drilling type pipe shed steel pipe device for tunnel excavation and construction method |
-
2014
- 2014-05-23 CN CN201420266797.5U patent/CN203891016U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104895072A (en) * | 2015-04-08 | 2015-09-09 | 中国建筑第八工程局有限公司 | A pre-stressed anchor cable and a pre-stressed anchor cable one-time forming construction method |
| CN106759320A (en) * | 2016-12-29 | 2017-05-31 | 柳州欧维姆机械股份有限公司 | Combined bearing plate, uniform pressure distribution type anchor cable and its installation method |
| CN106759320B (en) * | 2016-12-29 | 2019-06-18 | 柳州欧维姆机械股份有限公司 | Combined bearing plate, uniform pressure distribution type anchor cable and its installation method |
| CN108343056A (en) * | 2018-02-08 | 2018-07-31 | 北京方圆恒基岩土工程技术有限公司 | Reinforced cement-soil anchor bolt |
| CN109853544A (en) * | 2019-03-29 | 2019-06-07 | 华侨大学 | A kind of combination bearing plate and anchor pole that can enhance front and back injecting cement paste |
| CN109853544B (en) * | 2019-03-29 | 2024-02-23 | 华侨大学 | Combined bearing plate capable of enhancing front and rear grouting bodies and anchor rod |
| CN110468827A (en) * | 2019-08-22 | 2019-11-19 | 中冶交通建设集团有限公司 | It is bored for the jet nozzle of slip casting and slip casting |
| CN113503171A (en) * | 2021-08-11 | 2021-10-15 | 中电建路桥集团有限公司 | Guiding self-drilling type pipe shed steel pipe device for tunnel excavation and construction method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141022 Termination date: 20210523 |
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| CF01 | Termination of patent right due to non-payment of annual fee |