CN201099859Y - Multi-segment pocket type squeezing -type anchor rod - Google Patents

Multi-segment pocket type squeezing -type anchor rod Download PDF

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Publication number
CN201099859Y
CN201099859Y CNU2007201736342U CN200720173634U CN201099859Y CN 201099859 Y CN201099859 Y CN 201099859Y CN U2007201736342 U CNU2007201736342 U CN U2007201736342U CN 200720173634 U CN200720173634 U CN 200720173634U CN 201099859 Y CN201099859 Y CN 201099859Y
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CN
China
Prior art keywords
bag
anchor rod
anchor bolt
textile bags
type compression
Prior art date
Application number
CNU2007201736342U
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Chinese (zh)
Inventor
程良奎
范景伦
柳建国
许建平
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中国京冶工程技术有限公司
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Publication date
Application filed by 中国京冶工程技术有限公司 filed Critical 中国京冶工程技术有限公司
Priority to CNU2007201736342U priority Critical patent/CN201099859Y/en
Application granted granted Critical
Publication of CN201099859Y publication Critical patent/CN201099859Y/en

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Abstract

A multi-section bag-type compression type anchor bolt is used for reinforcing and protecting of foundation pits, slopes, tunnels and underground engineering in various complex formations, which comprises an anchor bolt body, wherein a tubular fabric bag is coated at the outside of an anchoring segment of the anchor bolt body, the diameter of the fabric bag is 5 centimeters to 10 centimeters longer than that of a drilling hole of the anchor bolt, the lower end port of the fabric bag arranged at the end of the guide head and the anchor bolt are bound up tightly by a lacing, while an upper end port of the fabric bag, an injection pipe inserted in the fabric bag and the anchor bolt body are bound up tightly by a lacing, cement grout and cement mortar can be injected via the injection pipe in the fabric bag. The multi-section bag-type compression type anchor bolt is simple in structure, and is capable of suppressing loss of cement mortar, increasing full degree and completeness of a grouted matter, reinforcing radio extrusion force, thereby obviously increasing a pulling resistance of a unit anchorage length of the anchor bolt and strengthening the anchoring effect. Further, the multi-section bag-type compression type anchor bolt is particularly for the anchorage engineering of complex formations such as a soft soil layer with free water, a rock formation with joint fissure or a solution rock formation and the like.

Description

Multistage bag-type compression anchor bar
Technical field
The utility model relates to a kind of multistage bag-type compression anchor bar, is used for the reinforcement protection of foundation ditch, side slope, tunnel and underground construction at various bad grounds.
Background technology
In the reinforcement protection technology of foundation ditch, side slope, tunnel and underground construction, adopt anchor pole very extensive, wherein the kind of anchor rod body is a lot, differs from one another, and corresponding construction method is basic identical.Existing anchor pole is in the stratum after the boring, and anchor rod body is packed in the boring, cement paste or cement mortar is poured in the space between the body of rod and boring by Grouting Pipe carries out anchoring again.Rock stratum or corrosion rock stratum that existing anchor pole technology is grown for loose or soil layer that Groundwater Flow is big and cracking crack, joint, the cement paste number of dropouts is big, the plumpness and the integrality of the body that can not guarantee to be in the milk; Lack the radial compression effect when being used for the big soft layer of compressive strain, can weaken the bonding frictional strength of anchoring body and ground interlayer owing to grouting.In a word, in above-mentioned bad ground, adopt current anchor structure pattern all can seriously reduce the anchor uplift resistance, anchoring effect is poor, and the long-term safety reliability of engineering is suffered damage.
The utility model content
The technical problems to be solved in the utility model provides a kind of simple in structure, can suppress cement mortar liquid runs off, improve the plumpness and the integrality of grouting body, strengthen radial compression power, thereby can significantly improve the multistage bag-type compression anchor bar of anchor pole unit's anchorage length uplift resistance and anchoring effect.
The utility model multistage bag-type compression anchor bar comprises the anchor rod body that an end is fixedlyed connected with guide head, wherein is set with the tubular fabric bag outside the anchoring section of anchor rod body, and the diameter of textile bags is greater than 5 centimetres~10 centimetres of armature boring diameters; The textile bags lower port that is positioned at the guiding head end is directly tightened with frenulum and anchor rod body binding, and the textile bags upper port is tightened with frenulum and the Grouting Pipe and the anchor rod body binding of inserting in it; In textile bags, pass through Grouting Pipe grout injection or cement mortar.
The utility model multistage bag-type compression anchor bar, wherein anchor rod body is connected as a single entity by some reinforcing bars or steel strand and constitutes, and tightens with frenulum and the anchor rod body binding that sealed support is housed at textile bags upper port place; Centre at sealed support is provided with the slip casting through hole along axis direction, and its outer circumference surface upper edge axis direction is provided with the reinforcing bar that embeds in the anchor rod body or the groove of steel strand symmetrically; Grouting Pipe is inserted in the textile bags from the slip casting through hole.
The utility model multistage bag-type compression anchor bar, wherein on the outer circumference surface of sealed support, the edge is perpendicular to also being provided with the annular groove that cooperates with frenulum on the axis direction.
The utility model multistage bag-type compression anchor bar, wherein textile bags length is 6 meters~15 meters.
The utility model multistage bag-type compression anchor bar wherein on the anchor rod body between the upper and lower port of textile bags, is tightened with frenulum and the anchor rod body binding that sealed support is housed every 2.0~3.0 meters.
The utility model multistage bag-type compression anchor bar is the textile bags of suit energy pressure-bearing 2Mpa on the anchoring section of anchor rod body, two ends bundle securely with frenulum, form a containment pockets, or tighten a plurality of pouches of formation in the centre binding as required, use Grouting Pipe continous pouring cement paste or the cement mortar that has several apertures in the bag, be full of whole textile bags until slurries, and push to the borehole circumference stratum, form the anchoring body that the bodily form enlarges at last, can improve the uplift resistance of anchor pole unit's anchorage length significantly; Simultaneously, textile bags can prevent the loss of slurries effectively, and economical with materials reduces construction costs.The utility model multistage bag-type compression anchor bar compliance is strong, and wide application is specially adapted to the anchoring engineering of foundation ditch, side slope, tunnel and underground construction in the bad grounds such as rock stratum weak, that contain water and soil layer, joint fissure growth or corrosion rock stratum.
Description of drawings
Fig. 1 is the utility model multistage bag-type compression anchor bar structure and behavior in service schematic diagram (being used for the pit pile anchor supporting);
Fig. 2 is the A-A generalized section (being sealed support structure and behavior in service) of Fig. 1;
Fig. 3 is the lateral view of Fig. 2;
Fig. 4 is the B-B generalized section of Fig. 1.
The specific embodiment
Referring to Fig. 1~Fig. 4, comprise the anchor rod body 2 that an end is fixedlyed connected with guide head 1 among the embodiment shown in the utility model, and anchor rod body 2 is bundled into one by 4 reinforcing bars or steel strand, outside the anchoring section of anchor rod body 2, be set with tubular fabric bag 3, length is 6 meters~15 meters, and the diameter of textile bags 3 is greater than 5 centimetres~10 centimetres of armature boring diameters; Textile bags 3 lower port that are positioned at guide head 1 end are directly tightened with frenulum and anchor rod body 2 bindings, on the anchor rod body 2 at textile bags 3 upper port places sealed support 5 are housed, and with frenulum textile bags 3 and anchor rod body 2 bindings are tightened; On the anchor rod body 2 between the textile bags 3 upper and lower ports, every 2.0~3.0 meters, sealed support 5 is housed also, with frenulum textile bags 3 and anchor rod body 2 bindings are tightened; In textile bags 3, pass through to insert Grouting Pipe 4 grout injections or cement mortar in it.
Sealed support 5 structures are provided with slip casting through hole 6 in the centre of sealed support 5 along axis direction as shown in Figures 2 and 3, and its outer circumference surface upper edge axis direction is provided with the reinforcing bar that embeds in the anchor rod body 2 or the groove 7 of steel strand symmetrically; On its outer circumference surface, the edge is perpendicular to also being provided with the annular groove 8 that cooperates with frenulum on the axis direction.Grouting Pipe 4 is inserted in it from the slip casting through hole 6 of textile bags 3 upper port.Textile bags 3 can be selected cotton, fiber crops and synthetic fibers material for use, and these materials itself and its all should be able to satisfy the requirement of withstand voltage pressure 2Mpa with binding place of frenulum.Guide head 1 can be convenient to anchor rod body 2 to boring in lay particularly long anchor pole.
Fig. 4 is the B-B generalized section of Fig. 1, promptly not at expand profile after expanding of the slip casting of binding place.
If anchor rod body 2 is a reinforcing bar, the upper port of textile bags 3 directly bundlees with anchor rod body 2 and Grouting Pipe 4 and tightens.
The operating principle of multistage bag-type compression anchor bar of the present utility model: adopting aperture pressure is 0.5~1.8Mpa slip casting, and slurries are full of each textile bags, and to the borehole circumference extruding and the expansion of expanding, forms a plurality of continuous swelling pressure type anchoring sections.Its job practices is identical with other anchor pole, anchor rod body-body of rod installation-slip casing by pressure-stretch-draw the several steps that contains textile bags by boring one binding carries out, at last, exposed junction at anchor rod body 2, by structural formula waist rail 10, pressure-bearing backing plate 8 and ground tackle 9 etc., firm the rising of slope protection pile 11 and stratum on every side linked together.

Claims (5)

1, a kind of multistage bag-type compression anchor bar, comprise the anchor rod body (2) that an end is fixedlyed connected with guide head (1), it is characterized in that being set with outside the anchoring section of described anchor rod body (2) tubular fabric bag (3), the diameter of described textile bags (3) is greater than 5 centimetres~10 centimetres of armature boring diameters; Described textile bags (3) lower port that is positioned at described guide head (1) end directly uses frenulum and described anchor rod body (2) binding to tighten, and described textile bags (3) upper port is tightened with frenulum and the Grouting Pipe (4) and described anchor rod body (2) binding of inserting in it; In described textile bags (3) by described Grouting Pipe (4) grout injection or husky cement mortar.
2, multistage bag-type compression anchor bar according to claim 1, it is characterized in that described anchor rod body (2) is connected as a single entity by some reinforcing bars or steel strand constitutes, and tightens with frenulum and described anchor rod body (2) binding that sealed support (5) is housed at described textile bags (3) upper port place; Centre at described sealed support (5) is provided with slip casting through hole (6) along axis direction, and its outer circumference surface upper edge axis direction is provided with the reinforcing bar that embeds in the described anchor rod body (2) or the groove (7) of steel strand symmetrically; Described Grouting Pipe (4) is inserted in the described textile bags (3) from described slip casting through hole (5).
3, multistage bag-type compression anchor bar according to claim 1 and 2 is characterized in that on the outer circumference surface of described sealed support (5), and the edge is perpendicular to also being provided with the annular groove (8) that cooperates with frenulum on the axis direction.
4, multistage bag-type compression anchor bar according to claim 3 is characterized in that described textile bags (3) length is 6 meters~15 meters.
5, multistage bag-type compression anchor bar according to claim 4, it is characterized in that on the described anchor rod body (2) between the upper and lower port of described textile bags (3), tighten with frenulum and described anchor rod body (2) binding that described sealed support (5) is housed every 2.0~3.0 meters.
CNU2007201736342U 2007-10-16 2007-10-16 Multi-segment pocket type squeezing -type anchor rod CN201099859Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNU2007201736342U CN201099859Y (en) 2007-10-16 2007-10-16 Multi-segment pocket type squeezing -type anchor rod

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNU2007201736342U CN201099859Y (en) 2007-10-16 2007-10-16 Multi-segment pocket type squeezing -type anchor rod

Publications (1)

Publication Number Publication Date
CN201099859Y true CN201099859Y (en) 2008-08-13

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Family Applications (1)

Application Number Title Priority Date Filing Date
CNU2007201736342U CN201099859Y (en) 2007-10-16 2007-10-16 Multi-segment pocket type squeezing -type anchor rod

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101644049B (en) * 2009-06-03 2012-02-22 广东省航盛建设集团有限公司 Slurry injection technique of double-valve sleeve valve tube of cloth bag
CN103603683A (en) * 2013-12-03 2014-02-26 河南理工大学 Bag type grouting anchoring device and anchoring method
CN103726498A (en) * 2014-01-21 2014-04-16 山东正元建设工程有限责任公司 Grouting expanding pre-stressed anchor rod of fiber bag and using method thereof
CN103924928A (en) * 2014-03-27 2014-07-16 苏州市能工基础工程有限责任公司 Rotary jet grouting integrated drill bit and anchor cable matching structure and construction method thereof
CN104674807A (en) * 2015-02-10 2015-06-03 成都绿迪科技有限公司 Bearing head for anchor rod
CN105239570A (en) * 2015-09-30 2016-01-13 常州大学怀德学院 Multi-bag type joint-expanded anchor rod and foundation pit supporting construction method
CN108179750A (en) * 2017-12-29 2018-06-19 合肥工业大学 A kind of ruggedized construction of dam spillway
CN108868825A (en) * 2018-07-06 2018-11-23 中钢集团马鞍山矿山研究院有限公司 The big water yield drilling rapid plugging method of high pressure

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101644049B (en) * 2009-06-03 2012-02-22 广东省航盛建设集团有限公司 Slurry injection technique of double-valve sleeve valve tube of cloth bag
CN103603683A (en) * 2013-12-03 2014-02-26 河南理工大学 Bag type grouting anchoring device and anchoring method
CN103603683B (en) * 2013-12-03 2016-12-07 河南理工大学 Pocket type slip casting anchoring process
CN103726498A (en) * 2014-01-21 2014-04-16 山东正元建设工程有限责任公司 Grouting expanding pre-stressed anchor rod of fiber bag and using method thereof
CN103924928A (en) * 2014-03-27 2014-07-16 苏州市能工基础工程有限责任公司 Rotary jet grouting integrated drill bit and anchor cable matching structure and construction method thereof
CN103924928B (en) * 2014-03-27 2016-02-03 苏州市能工基础工程有限责任公司 The fit structure of the bit Integrated and anchor cable of rotary jet grouting and construction method thereof
CN104674807A (en) * 2015-02-10 2015-06-03 成都绿迪科技有限公司 Bearing head for anchor rod
CN105239570A (en) * 2015-09-30 2016-01-13 常州大学怀德学院 Multi-bag type joint-expanded anchor rod and foundation pit supporting construction method
CN108179750A (en) * 2017-12-29 2018-06-19 合肥工业大学 A kind of ruggedized construction of dam spillway
CN108868825A (en) * 2018-07-06 2018-11-23 中钢集团马鞍山矿山研究院有限公司 The big water yield drilling rapid plugging method of high pressure

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Legal Events

Date Code Title Description
GR01 Patent grant
C14 Grant of patent or utility model
EE01 Entry into force of recordation of patent licensing contract

Assignee: Beijing Yejian New Technology Co., Ltd.

Assignor: China Jingye Engineering Technology Co., Ltd.

Contract fulfillment period: 2008.9.13 to 2017.10.16 contract change

Contract record no.: 2009990000272

Denomination of invention: Multistage bag-type compression anchor bar

Granted publication date: 20080813

License type: Exclusive license

Record date: 2009.4.3

Assignee: Beijing Yejian New Technology Co., Ltd.

Assignor: China Jingye Engineering Technology Co., Ltd.

Contract fulfillment period: 2008.9.13 to 2017.10.16

Contract record no.: 2009990000272

Denomination of utility model: Multistage bag-type compression anchor bar

Granted publication date: 20080813

License type: Exclusive license

Record date: 20090403

LIC Patent licence contract for exploitation submitted for record

Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2008.9.13 TO 2017.10.16; CHANGE OF CONTRACT

Name of requester: BEIJING YE JIAN NEW TECHNOLOGY CO., LTD.

Effective date: 20090403

AV01 Patent right actively abandoned

Effective date of abandoning: 20071016

C25 Abandonment of patent right or utility model to avoid double patenting