CN206874297U - A kind of collection drilling, slip casting, it is anchored in integral novel anchor rod - Google Patents

A kind of collection drilling, slip casting, it is anchored in integral novel anchor rod Download PDF

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Publication number
CN206874297U
CN206874297U CN201720702572.3U CN201720702572U CN206874297U CN 206874297 U CN206874297 U CN 206874297U CN 201720702572 U CN201720702572 U CN 201720702572U CN 206874297 U CN206874297 U CN 206874297U
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China
Prior art keywords
rod
slip casting
anchored
anchor rod
anchor
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CN201720702572.3U
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Chinese (zh)
Inventor
丁红春
陆金才
杨继清
李靖
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Sinohydro Bureau 14 Co Ltd
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Sinohydro Bureau 14 Co Ltd
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Abstract

It the utility model is related to tunnel support equipment technical field, disclose a kind of collection drilling, slip casting, be anchored in integral novel anchor rod, including anchor rod main body, anchor rod main body includes at least two sections of bodies of rod, the body of rod is the body of rod of inner hollow, and the outer surface of the body of rod is equipped with external screw thread, uniformly injected hole is provided with the side wall of the body of rod, injected hole is in interlaced arrangement in the side wall of the body of rod, and the side wall of the diameter of injected hole along the body of rod tapers into the center of the body of rod;Adapter sleeve at least two sections of bodies of rod will connect as one.The utility model will drill, slip casting and anchoring organically combine, anchor pole squeezes into rock mass by drill bit, the cement grout that will be prepared using body of rod internal cavities, using grouting pump slip casting, slurries are out of anchor pole wall injected hole press-in anchor pole periphery rock mass, by anchor rod anchored in rock mass, while periphery loose rock mass is consolidated, complete the consolidation grouting of advance support and loose rock mass.

Description

A kind of collection drilling, slip casting, it is anchored in integral novel anchor rod
Technical field
Tunnel support equipment technical field is the utility model is related to, more particularly to a kind of collection drilling, slip casting, is anchored in one Novel anchor rod.
Background technology
In recent years, with the continuous development of China's transport development cause, the construction in tunnel is more and more, is set to China tunnel Meter, construction, maintenance bring great challenge.Need to carry out supporting in time in the excavation project in tunnel, for light-gauge Tunnel, the poor slope retaining of geology, tunnel severe crush crushed zone excavation supporting, and have the sand pebble layer of infiltration, weathering Poor sandy soil layer of more serious country rock, self-stability etc. excavates advance support and consolidation grouting, can not using common advance support Carry out, entered for the jacked piles with small section for being not suitable with common advance anchor bolt and advanced conduit supporting using self-advancing type pre-grouting anchor pole Row supporting, a novel anchor rod for integrating the functions such as drilling, slip casting, anchoring is being developed to jacked piles with small section excavation supporting.
Utility model content
In view of the above-mentioned problems, the purpose of this utility model be to provide it is a kind of collect drilling, slip casting, be anchored in it is integral new Anchor pole.
In order to realize purpose of utility model, the utility model adopts the following technical scheme that:
Provide a kind of collection drilling, slip casting, be anchored in integral novel anchor rod, its structure includes:
Anchor rod main body, the anchor rod main body include at least two sections of bodies of rod, and the body of rod is the body of rod of inner hollow, the bar The outer surface of body is equipped with external screw thread, is uniformly provided with injected hole in the side wall of the body of rod, the injected hole is in the body of rod Side wall on be in interlaced arrangement, the side wall of the diameter of the injected hole along the body of rod tapers into the center of the body of rod;
Adapter sleeve, the adapter sleeve at least two sections of bodies of rod will connect as one;
Drill bit, the drill bit are arranged on the head end of the anchor rod main body;
Stop grouting plug, the stop grouting plug are in hollow round table shape, and the inner wall surface of the stop grouting plug is provided with matches somebody with somebody with the external screw thread The internal thread of conjunction, the stop grouting plug are sleeved on the rear portion of the anchor rod main body;
Arch backing plate, through hole is provided with the center of the arch backing plate, the arch backing plate is sleeved on by the through hole The rear portion of the anchor rod main body, the arch backing plate are arranged on the rear of the stop grouting plug;
Clamp nut, the clamp nut are the nut being engaged with the external screw thread of second body of rod, described tight Gu nut sleeve is mounted in the rear portion of the anchor rod main body, the clamp nut and the stop grouting plug are by the dome shaped pad board clamping two Between person.
Further, the anchor rod main body includes first body of rod and second body of rod.
Further, the diameter of the inner hollow cavity of first body of rod and second body of rod is not less than 15mm.
Further, a diameter of 6-10mm of the injected hole.
Further, the spacing between the injected hole is 20cm.
Further, the adapter sleeve is cylindrical, and the inner surface of the adapter sleeve is provided with what is coordinated with the external screw thread The head end of the tail end of first body of rod and second body of rod is attached by internal thread, the adapter sleeve.Adapter sleeve uses intensity Higher steel are made.
Further, the head end of the drill bit and first body of rod welds together.The higher conjunction of degree before drill bit uses Golden drill bit.
Further, the diameter of the through hole is more than the diameter of the body of rod, and the diameter of the through hole is less than the only slurry The external diameter of plug.
Further, the arch backing plate is made up of square or circular steel plate.
Further, first body of rod and second body of rod are made of hollow threaded steel pipe.The body of rod is using strong Degree is higher than HRB400 type threaded hollow steel pipes, and intensity is high, has stronger resistance characteristics.
The beneficial effects of the utility model are:
1st, collection drilling, the slip casting of the utility model example, be anchored in integral novel anchor rod, will drilling, slip casting and anchoring Organically combine, in grouted anchor bar end tipped drill, anchor pole squeezes into rock mass by drill bit, will using body of rod internal cavities The cement grout prepared, using grouting pump slip casting, slurries are out of anchor pole wall injected hole press-in anchor pole periphery rock mass, by anchor pole anchor Gu being consolidated in rock mass, while to periphery loose rock mass, the consolidation grouting of advance support and loose rock mass is completed.
2nd, collection drilling, the slip casting of the utility model example, be anchored in integral novel anchor rod, the body of rod selects hollow screw thread Steel pipe is made, and can increase the friction between the body of rod and country rock, further increases the anchoring effect of grouted anchor bar.
3rd, collection drilling, the slip casting of the utility model example, be anchored in integral novel anchor rod, by drilling, slip casting, anchoring one Secondary property is completed, and is reduced the process for beating common bolt, is accelerated construction progress, reduce support cost, while can effectively protect The stability in tunnel is demonstrate,proved, its is simple in construction, easy for installation, and cost is relatively low, has wide applicability.
4th, collection drilling, the slip casting of the utility model example, be anchored in integral novel anchor rod, grouting borehole design into aperture from Taper into outside to inside, slip casting hole plug can be prevented, facilitate cement paste to flow out to the body of rod through injected hole out of hollow cavity Outside, even if being blocked in injected hole by a little ground, the pressure of cement paste easily can also release the impurity for blocking injected hole, Avoid slip casting hole plug.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model embodiment;
Fig. 2 is the structural representation of the utility model embodiment arch backing plate;
Fig. 3 is the sectional view of the body of rod of the utility model embodiment first and injected hole.
In figure:The bodies of rod of 1- first, the bodies of rod of 2- second, 3- injected holes, 4- adapter sleeves, 5- drill bits, 6- stop grouting plugs, 7- dome shaped pads Plate, 8- through holes, 9- clamp nuts.
Embodiment
In order to be better understood by the technical solution of the utility model, with reference to Figure of description and specific embodiment to this Utility model is described further.
As shown in figure 1, a kind of collect drilling, slip casting, be anchored in integral novel anchor rod, including:
The body of rod, the body of rod include first body of rod 1 and second body of rod 2, and first body of rod 1 and second body of rod 2 are using hollow Threaded steel pipe is made, and the diameter of the inner hollow cavity of first body of rod 1 and second body of rod 2 is not less than 15mm.
As shown in figures 1 and 3, the outer surface of first body of rod 1 and second body of rod 2 is equipped with external screw thread, first body of rod 1 and Uniform in the side wall of bipole body 2 to be provided with injected hole 3, injected hole 3 is in the side wall of first body of rod 1 and second body of rod 2 in staggeredly Arrangement, the connecting line of each injected hole 3 is twist;Spacing between injected hole 3 is 20cm, a diameter of 6-10mm of injected hole, Side wall of the diameter of injected hole 3 along the body of rod tapers into the center of the body of rod.
Adapter sleeve 4 is cylindrical, and the inner surface of adapter sleeve 4 is provided with the internal thread being engaged with the external screw thread of the body of rod, connection The head end of the tail end of first body of rod 1 and second body of rod 2 is attached by set 4, and first body of rod 1 and second body of rod 2 are connected as always Length is the 3-12m body of rod, generally there is 3m, 4.5m, 6m, 9m, 12m etc..The 4.5m supportings that the anchor poles of Φ 25 are often not more than with length, The anchor poles of Φ 28 are often not more than 9m supporting with length, and the anchor poles of Φ 32 are often not more than 12m supporting with length.Rock-bolt length is according to reality Border engineering is determined, required length is linked to using coupling sleeve.
Drill bit 5 is welded on the head end of first body of rod;
Stop grouting plug 6 is in hollow round table shape, and the inner wall surface of stop grouting plug 6 is provided with the internal thread coordinated with body of rod external screw thread, only Slurry plug 6 is sleeved on the rear portion of second body of rod 2;
As shown in Fig. 2 arch backing plate 7 is made up of square plate, through hole 8 is provided with the center of arch backing plate 7, through hole 8 Diameter is more than the diameter of second body of rod 2, and the diameter of through hole 2 is less than the external diameter of stop grouting plug 6.
As shown in figure 1, arch backing plate 7 is sleeved on the rear portion of second body of rod 2 by through hole 8, arch backing plate 7, which is arranged on, only to be starched The rear of plug 6;Clamp nut 9 is the nut being engaged with the external screw thread of second body of rod 2, and clamp nut 9 is sleeved on second body of rod 2 Rear portion, clamp nut 9 and stop grouting plug 6 clamp arch backing plate 7 therebetween.
Use of the present utility model, is punched by drill bit, and after the completion of drilling, slip casting uses diameter >=10mm plastic tube (guiding), bottom is inserted into from hollow cavity, guiding property slip casting, slip casting is taken from the inside to the outside, and marginal not slurry side is moved back laterally Move, flow out, enter in the rock mass on anchor pole periphery out of injected hole on first body of rod and the second body of rod side wall in cement paste, Anchor pole is fixed on palisades by stop grouting plug and arch backing plate and clamp nut in the borehole by anchor rod anchored, completes anchor Gu.
The body of rod is not limited to the bar of the body of rod one, body two in above-described embodiment, and usual every section of body of rod length is 3.0m, also can root Factually border is it needs to be determined that the length of every section of body of rod.Arch backing plate can also be circular or other shapes steel plate systems in embodiment Into.
Above description is only the preferred embodiment of the application and the explanation to institute's application technology principle.People in the art Member should be appreciated that utility model scope involved in the application, however it is not limited to what the particular combination of above-mentioned technical characteristic formed Technical scheme, while should also cover in the case where not departing from utility model design, by above-mentioned technical characteristic or its be equal Other technical schemes that feature is combined and formed.Such as features described above has with (but not limited to) disclosed herein The technical scheme that the technical characteristic for having similar functions is replaced mutually and formed.

Claims (10)

1. a kind of collection drilling, slip casting, it is anchored in integral novel anchor rod, it is characterised in that including:
Anchor rod main body, the anchor rod main body include at least two sections of bodies of rod, and the body of rod is the body of rod of inner hollow, the body of rod Outer surface is equipped with external screw thread, is uniformly provided with injected hole in the side wall of the body of rod, the injected hole is in the side of the body of rod It is in interlaced arrangement on wall, the side wall of the diameter of the injected hole along the body of rod tapers into the center of the body of rod;
Adapter sleeve, the adapter sleeve at least two sections of bodies of rod will connect as one;
Drill bit, the drill bit are arranged on the head end of the anchor rod main body;
Stop grouting plug, the stop grouting plug are in hollow round table shape, and the inner wall surface of the stop grouting plug is provided with what is coordinated with the external screw thread Internal thread, the stop grouting plug are sleeved on the rear portion of the anchor rod main body;
Arch backing plate, through hole is provided with the center of the arch backing plate, and the arch backing plate is sleeved on described by the through hole The rear portion of anchor rod main body, the arch backing plate are arranged on the rear of the stop grouting plug;
Clamp nut, the clamp nut are the nut being engaged with the external screw thread, and the clamp nut is sleeved on the anchor The rear portion of bar main body, the clamp nut and the stop grouting plug by the dome shaped pad board clamping therebetween.
2. collection drilling, slip casting according to claim 1, it is anchored in integral novel anchor rod, it is characterised in that the anchor pole Main body includes first body of rod and second body of rod.
3. collection drilling, slip casting according to claim 1 or 2, it is anchored in integral novel anchor rod, it is characterised in that described The diameter of the inner hollow cavity of the body of rod is not less than 15mm.
4. collection drilling, slip casting according to claim 1, it is anchored in integral novel anchor rod, it is characterised in that the slip casting A diameter of 6-10mm in hole.
5. collection drilling, slip casting according to claim 1, it is anchored in integral novel anchor rod, it is characterised in that the slip casting Spacing between hole is 20cm.
6. collection drilling, slip casting according to claim 2, it is anchored in integral novel anchor rod, it is characterised in that the company Female connector is cylindrical, and the inner surface of the adapter sleeve is provided with the internal thread coordinated with the external screw thread, and the adapter sleeve is by described in The head end of the tail end of first body of rod and second body of rod is attached.
7. collection drilling, slip casting according to claim 2, it is anchored in integral novel anchor rod, it is characterised in that the drill bit Weld together with the head end of first body of rod.
8. collection drilling, slip casting according to claim 1, it is anchored in integral novel anchor rod, it is characterised in that the through hole Diameter be more than the diameter of the body of rod, the diameter of the through hole is less than the external diameter of the stop grouting plug.
9. collection drilling, slip casting according to claim 1, it is anchored in integral novel anchor rod, it is characterised in that the arch Backing plate is made up of square or circular steel plate.
10. collection drilling, slip casting according to claim 2, it is anchored in integral novel anchor rod, it is characterised in that described the One body of rod and second body of rod are made of hollow threaded steel pipe.
CN201720702572.3U 2017-06-16 2017-06-16 A kind of collection drilling, slip casting, it is anchored in integral novel anchor rod Active CN206874297U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201720702572.3U CN206874297U (en) 2017-06-16 2017-06-16 A kind of collection drilling, slip casting, it is anchored in integral novel anchor rod

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201720702572.3U CN206874297U (en) 2017-06-16 2017-06-16 A kind of collection drilling, slip casting, it is anchored in integral novel anchor rod

Publications (1)

Publication Number Publication Date
CN206874297U true CN206874297U (en) 2018-01-12

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108643949A (en) * 2018-05-24 2018-10-12 中铁十九局集团第六工程有限公司 A kind of anchor rod construction method of tunnel breaking surrounding rock
CN109611135A (en) * 2018-12-05 2019-04-12 贵州大学 A kind of Novel hollow cross grouting anchor rod device and application method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108643949A (en) * 2018-05-24 2018-10-12 中铁十九局集团第六工程有限公司 A kind of anchor rod construction method of tunnel breaking surrounding rock
CN109611135A (en) * 2018-12-05 2019-04-12 贵州大学 A kind of Novel hollow cross grouting anchor rod device and application method

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