CN104179178A - Flexible umbrella supporting anchor bolt and method for supporting soil slope thereby - Google Patents

Flexible umbrella supporting anchor bolt and method for supporting soil slope thereby Download PDF

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Publication number
CN104179178A
CN104179178A CN201410429874.9A CN201410429874A CN104179178A CN 104179178 A CN104179178 A CN 104179178A CN 201410429874 A CN201410429874 A CN 201410429874A CN 104179178 A CN104179178 A CN 104179178A
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China
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circular
flexible
anchor pole
reaction plate
circular connector
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CN201410429874.9A
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Chinese (zh)
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CN104179178B (en
Inventor
张鸿
吴文清
张红宇
刘优平
黎剑华
徐斌
黄文红
危志全
吴建佳
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南昌工程学院
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Publication of CN104179178B publication Critical patent/CN104179178B/en

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Abstract

The invention relates to a flexible umbrella supporting anchor bolt and a method for supporting a soil slope thereby. An end ring and an end circular connector are fixedly disposed at one end of a round anchor bolt. A spring circular connector and a middle ring are fixedly disposed in the middle of the round anchor bolt. A lower circular connector adjacent to the right side of the middle ring movably sleeves the round anchor bolt. A drag umbrella surrounding the round anchor bolt comprises reacting plates evenly arranged, pull rods and compression springs. One end of a flexible pull rope is fixed to a round hole arranged in the other end of the round anchor bolt. More than one flexible umbrella supporting anchor bolt is connected with a soil high slope protective structure, composed of a geogrid mesh, a vegetation protective layer and a retaining wall, through the flexible pull ropes, and a whole for firmly and reliably anchoring and protecting the soil high slope is formed. The umbrella reacting plates are connected with the protective structural mesh through the flexible pull rope, anchoring force is greatly higher than that of a traditional anchor bolt, anchoring effect is more reliable, and engineering cost can be decreased by 50-60%.

Description

A kind of flexible umbrella support anchor rod and for the method for supporting soil layer side slope

Technical field

The present invention relates to geotechnical engineering side slope protection field, particularly a kind of flexible umbrella support anchor rod and for the method for supporting soil layer side slope.

Background technology

From 1912, since Germany adopts bolt support underworkings at first, bolt support was simple in structure with it, and easy construction, cost is low and to features such as engineering adaptability are strong, in civil engineering, be widely applied.And anchor pole use to be reinforced object difference according to it and can be divided into soil bolt and Rock Anchor, soil bolt and Rock Anchor be some is similar nominally, but its object, effect difference are very large.Rock Anchor is mainly that suspension function by anchor pole, compound beam effect, built-up arch effect, cross-cut effect, reinforcement effect etc. make fragmentation, soft stratum reach that self is firm.And soil bolt is mainly used in deep foundation ditch, slope retaining are reinforced, mostly generally be the uplift resistance that horizontal direction is provided; But the basic construction technology of soil bolt remains the way of the construction technology of copying Rock Anchor at present, holes, be in the milk, insert anchor pole, and the employing also having is pressed into or screws in the construction methods such as anchor pole.In soil layer side slope, adopt traditional anchor pole in flexible vegetative protection structure to have the following disadvantages at present: 1, the anchoring ability of anchor pole is not enough, often occur slope protection structure by anchor pole take out of, the phenomenon of slope failure.2, in side slope flexible vegetative protection structure, traditional reinforced anchor bolt and flexible net are connected and fixed illusive phenomenon, the phenomenon that easily causes anchor pole and protection flexible net to depart from, thus cause partial collapse.3, because reinforced anchor bolt need to carry out slip casting protection, to prevent the corrosion of reinforcing bar, thereby increased engineering cost.If it is not in place that reinforced steel bar rust preventing erosion is processed, will make greatly reduce the application life of anchor pole, thereby reduce the application life of side slope protection.4, for large-scale soil property high slope, carry out flexible vegetative protection, need a large amount of reinforced anchor bolts, thereby make construction costs very high.

Along with building in a large number of the current speedway of China, railway, in order to maintain the stable of soil property high slope, the application of anchor pole is more extensive, therefore, is badly in need of a kind of new-type anchor pole that can overcome traditional anchor pole shortcoming.

Summary of the invention

The technical problem to be solved in the present invention is to provide a kind of flexible umbrella support anchor rod and for the method for supporting soil layer side slope.

For solving the problems of the technologies described above, technical scheme of the present invention is: a kind of flexible umbrella support anchor rod, at the end of the circular anchor pole fixed installation end collar and end circular connector, at the middle part of circular anchor pole fixed installation spring circular connector and the middle collar, on circular anchor pole, near circular connector under the movable set of middle collar right side; Drag parachute around circular anchor pole comprises uniform reaction plate, pull bar, Compress Spring, the termination of reaction plate is hinged by rotating shaft and end circular connector, one end of pull bar is hinged by bearing pin and lower circular connector, the other end of pull bar is hinged by the middle part of axle and reaction plate, one end of Compress Spring is hinged by axle and spring circular connector, and the other end of Compress Spring is connected with reaction plate; One end of flexible cable and the circular hole of circular termination point of anchor rod are fixed.

Described circular anchor pole comprises bar reinforcement or the potassium steel rod of antirust processing.Described reaction plate is made by stainless steel material or high-strength aluminum alloy material.Described flexible cable comprises steel cable or the steel and plastic complex tie bar strip of antirust processing.

The method that adopts above-mentioned flexible umbrella support anchor rod supporting soil layer side slope, comprising:

1. first with rig, hole in the Soil Anchor Design position in the soil body of side slope, and institute's hole diameter is than more than the large 3cm of the diameter of the fixed end collar;

2. drilling depth reaches after designing requirement, carries out hole clearly, and in bolthole bottom, carries out slip casting with grouting equipment, and the slip casting degree of depth will exceed flexible umbrella support anchor rod termination 30cm, and slip casting object is mainly that flexible umbrella support anchor rod is carried out to antirust processing;

3. the right part of flexible cable and circular anchor pole is penetrated to the auxiliary steel pipe that diameter is greater than circular anchor pole, is less than lower circular connector;

4. auxiliary steel pipe top is stayed circular connector by after flexible umbrella support anchor rod is at the bottom of institute's drill hole wall is pushed to hole, will assist steel pipe to extract;

5. with jack or anchor rod drawing device stretch-draw flexible cable, at this moment reaction plate opens under the effect of Compress Spring, and inserts inside soil body; In the process of reaction plate opening movement, will drive down circular connector to be moved to the left along circular anchor pole by pull bar; Along with the increasing of pulling force, the angle that reaction plate opens can increase gradually; When reaction plate opens up into maximum angle, in lower circular connector quilt, the collar stops, can not produce movement, at this moment reaction plate will produce huge counter-force, by end circular connector and the end collar, be delivered on circular anchor pole, make the flexible cable that is fixedly connected on circular anchor pole lower end produce huge anchoring pulling force;

6. the soil property High Slope Protection structure that adopts more than one flexible umbrella support anchor rod to combine with earth work grille net, protective cover of vegetation and retaining wall by flexible cable links together, and forms an integral body of soil property high slope being carried out anchoring protection solid and reliablely.

The invention has the beneficial effects as follows: 1, compare traditional anchor pole, owing to having used umbrella reaction plate in anchor pole end, the anchored force of anchor pole is increased greatly, construction quality more easily guarantees, anchoring effect is more reliable.

2, traditional anchor pole is mainly to obtain anchored force by producing frictional force between anchor pole reinforcing bar and hole wall, therefore the length of anchor pole can require long, and flexible roof bolt of the present invention is that opening in the soil body forms huge anchored force by reaction plate, so circular anchor pole lengthonly need to pass slope body slide plane, by flexible cable and safeguard structure net, link together, form an integral body of soil property high slope being carried out anchoring protection solid and reliablely; circularrock-bolt length shortens greatly, thereby saves engineering material.

3, because flexible cable can adopt steel and plastic complex tie bar strip, compare with traditional reinforced anchor bolt, not only construction technology is simple, and can reduce construction costs, increases application life.From existing market price quotations, flexible steel and plastic complex tie bar strip is cheap more a lot of than reinforcing bar, and adopts flexible material can also save the etch-proof expense of reinforcing bar cement injection mortar.Therefore, not only anchoring effect is more solid and reliable to adopt flexible umbrella support anchor rod, can also save construction costs 50-60%.

Accompanying drawing explanation

Below in conjunction with drawings and Examples, the present invention is further described.

Fig. 1 is flexible umbrella support anchor rod expanded configuration schematic diagram.

Fig. 2 is that flexible umbrella support anchor rod draws structural representation in.

Fig. 3 is the floor map of lower circular connector.

Fig. 4 is the floor map of end circular connector.

The application schematic diagram of the flexible umbrella support anchor rod of Fig. 5 in soil-slope protection.

The specific embodiment

embodiment 1as Figure 1-4: a kind of flexible umbrella support anchor rod, at the end of the circular anchor pole 1 fixed installation end collar 9 and end circular connector 7, at the middle part of circular anchor pole 1 fixed installation spring circular connector 8 and the middle collar 6, on circular anchor pole 1, near circular connector 3 under the middle collar 6 right side movable sets; Drag parachute around circular anchor pole 1 comprises uniform reaction plate 2, pull bar 4, Compress Spring 5, the termination of reaction plate 2 is hinged by rotating shaft 11 and end circular connector 7, one end of pull bar 4 is hinged by bearing pin 10 and lower circular connector 3, the other end of pull bar 4 is hinged by the middle part of axle and reaction plate 2, one end of Compress Spring 5 is hinged by axle and spring circular connector 8, and the other end of Compress Spring 5 is connected with reaction plate 2; The circular hole of one end of flexible cable 12 and circular anchor pole 1 termination is fixed.

Described circular anchor pole 1 comprises bar reinforcement or the potassium steel rod of antirust processing.Described reaction plate 2 is made by stainless steel material or high-strength aluminum alloy material.Described flexible cable 12 comprises steel cable or the steel and plastic complex tie bar strip of antirust processing.

embodiment 2as Figure 1-5: the method for flexible umbrella support anchor rod supporting soil layer side slope described in employing embodiment 1, comprising:

1. first with rig, hole in the Soil Anchor Design position in the soil body 16 of side slope, and institute's hole diameter is than more than the large 3cm of the diameter of the fixed end collar 9;

2. drilling depth reaches after designing requirement, carries out hole clearly, and in bolthole bottom, carries out slip casting with grouting equipment, and the slip casting degree of depth will exceed flexible umbrella support anchor rod termination 30cm, and slip casting object is mainly that flexible umbrella support anchor rod is carried out to antirust processing;

3. the right part of flexible cable 12 and circular anchor pole 1 is penetrated to the auxiliary steel pipe that diameter is greater than circular anchor pole 1, is less than lower circular connector 3;

4. auxiliary steel pipe top is stayed circular connector 3 by after flexible umbrella support anchor rod is at the bottom of institute's drill hole wall is pushed to hole, will assist steel pipe to extract;

5. with jack or anchor rod drawing device stretch-draw flexible cable 12, at this moment reaction plate 2 opens under the effect of Compress Spring 5, and inserts inside soil body; In the process of reaction plate 2 opening movements, will drive lower circular connector 3 to be moved to the left along circular anchor pole 1 by pull bar 4; Along with the increasing of pulling force, the angle that reaction plate 2 opens can increase gradually; When reaction plate 2 opens up into maximum angle, in lower circular connector 3 quilts, the collar 6 stops, can not produce movement, at this moment reaction plate 2 will produce huge counter-force, by end circular connector 7 and the end collar 9, be delivered on circular anchor pole 1, make the flexible cable 12 that is fixedly connected on circular anchor pole 1 lower end produce huge anchoring pulling force;

6. as shown in Figure 5: adopt the soil property High Slope Protection structure that the flexible umbrella support anchor rod of three combines by flexible cable 12 and earth work grille net 13 and protective cover of vegetation 14 and retaining wall 15 to link together, form an integral body of soil property high slope being carried out anchoring protection solid and reliablely.

Claims (5)

1. a flexible umbrella support anchor rod, it is characterized in that: at the end of circular anchor pole (1) the fixed installation end collar (9) and end circular connector (7), at middle part fixed installation spring circular connector (8) and the middle collar (6) of circular anchor pole (1), at circular anchor pole (1), go up, near the middle collar (6) right side movable set under circular connector (3); Drag parachute around circular anchor pole (1) comprises uniform reaction plate (2), pull bar (4), Compress Spring (5), the termination of reaction plate (2) is hinged by rotating shaft (11) and end circular connector (7), one end of pull bar (4) is hinged by bearing pin (10) and lower circular connector (3), the other end of pull bar (4) is hinged by the middle part of axle and reaction plate (2), one end of Compress Spring (5) is hinged by axle and spring circular connector (8), and the other end of Compress Spring (5) is connected with reaction plate (2); The circular hole of one end of flexible cable (12) and circular anchor pole (1) termination is fixed.
2. a kind of flexible umbrella support anchor rod according to claim 1, is characterized in that: described circular anchor pole (1) comprises bar reinforcement or the potassium steel rod of antirust processing.
3. a kind of flexible umbrella support anchor rod according to claim 1, is characterized in that: described reaction plate (2) is made by stainless steel material or high-strength aluminum alloy material.
4. a kind of flexible umbrella support anchor rod according to claim 1, is characterized in that: described flexible cable (12) comprises steel cable or the steel and plastic complex tie bar strip of antirust processing.
5. the method that adopts flexible umbrella support anchor rod supporting soil layer side slope described in claim 1, comprising:
1. first use the Soil Anchor Design position of rig in the soil body (16) of side slope to hole, institute's hole diameter is than more than the large 3cm of diameter of the end collar (9);
2. drilling depth reaches after designing requirement, carries out hole clearly, and in bolthole bottom, carries out slip casting with grouting equipment, and the slip casting degree of depth will exceed flexible umbrella support anchor rod termination 30cm, and slip casting object is mainly that flexible umbrella support anchor rod is carried out to antirust processing;
3. the right part of flexible cable (12) and circular anchor pole (1) is penetrated to the auxiliary steel pipe that diameter is greater than circular anchor pole (1), is less than lower circular connector (3);
4. auxiliary steel pipe top is stayed circular connector (3) by after flexible umbrella support anchor rod is at the bottom of institute's drill hole wall is pushed to hole, will assist steel pipe to extract;
5. with jack or anchor rod drawing device stretch-draw flexible cable (12), at this moment reaction plate (2) opens under the effect of Compress Spring (5), and inserts inside soil body; In the process of reaction plate (2) opening movement, will drive lower circular connector (3) to be moved to the left along circular anchor pole (1) by pull bar (4); Along with the increasing of pulling force, the angle that reaction plate (2) opens can increase gradually; When reaction plate (2) opens up into maximum angle, in lower circular connector (3) quilt, the collar (6) stops, can not produce movement, at this moment reaction plate (2) will produce huge counter-force, by end circular connector (7) and the end collar (9), be delivered to circular anchor pole (1) upper, make the flexible cable (12) that is fixedly connected on circular anchor pole (1) lower end produce huge anchoring pulling force;
6. adopt more than one flexible umbrella support anchor rod to link together with the soil property High Slope Protection structure that earth work grille net (13), protective cover of vegetation (14) and retaining wall (15) combine by flexible cable (12), form an integral body of soil property high slope being carried out anchoring protection solid and reliablely.
CN201410429874.9A 2014-08-28 2014-08-28 A kind of flexible umbrella support anchor rod and the method for supporting soil level sideslope CN104179178B (en)

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Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104532859A (en) * 2014-12-30 2015-04-22 重庆科技学院 Slope support system with umbrella-type fixing assemblies
CN104832201A (en) * 2015-04-30 2015-08-12 广西大学 Expansion type anchor rod
CN104947663A (en) * 2015-07-15 2015-09-30 长江水利委员会长江科学院 Special drive type umbrella-shaped anchor for rushing to deal with emergency as well as application method of anchor
CN105421450A (en) * 2015-08-27 2016-03-23 中国十七冶集团有限公司 Multi-spring-bolt-pin self-locking type anchor rod and application method thereof
CN105908740A (en) * 2016-04-18 2016-08-31 湖南大学 Pre-stressed anchor cable anchoring terminal device for deep large landslide super long anchoring
CN109469074A (en) * 2018-10-26 2019-03-15 中铁二院成都勘察设计研究院有限责任公司 A kind of cutting slope defending structure and its construction method
CN109811719A (en) * 2019-02-18 2019-05-28 东北大学 A kind of slip casting anchor stock being applicable in weak soil dykes and dams and weak soil dykes and dams anchoring construction method
CN109853555A (en) * 2019-04-10 2019-06-07 深圳宏业基岩土科技股份有限公司 The preferable anchor pole of extraction-resistant behavior
CN109930598A (en) * 2019-04-15 2019-06-25 陈林 A kind of foundation pit fender pile and foundation pit baffle
CN110565648A (en) * 2019-08-08 2019-12-13 江苏科技大学 anchor head expandable anchor rod and construction method thereof
CN110735438A (en) * 2019-10-28 2020-01-31 华北水利水电大学 high stability ecological landscape slope protection structure
CN110747911A (en) * 2019-10-26 2020-02-04 福州大学 Be used for half basement slip casting stock that leaks

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106522250A (en) * 2016-12-30 2017-03-22 西南交通大学 Prestress anchoring structure suitable for freeze thawed-slope reinforcement in frozen soil region

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CN1415805A (en) * 2002-12-12 2003-05-07 上海交通大学 Ship anchor type anchor head of ground anchor in grouting stretch model
CN202139588U (en) * 2011-06-18 2012-02-08 山东大学 Novel self-broaching anchor rod
CN102518132A (en) * 2012-01-09 2012-06-27 长江水利委员会长江科学院 Tensioned self-locking umbrella type anchor and soil slope reinforcement method
CN202416302U (en) * 2011-12-23 2012-09-05 浙江海洋学院普陀科学技术学院 Umbrella-shaped anchor pile
CN204080802U (en) * 2014-08-28 2015-01-07 南昌工程学院 A kind of flexible umbrella support anchor rod

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CN2274653Y (en) * 1996-11-27 1998-02-18 福建建专基础工程公司 Umbrella type anchor pin
JP2001026927A (en) * 1999-07-15 2001-01-30 Nobumasa Asakawa Anchoring body in ground anchor
CN1415805A (en) * 2002-12-12 2003-05-07 上海交通大学 Ship anchor type anchor head of ground anchor in grouting stretch model
CN202139588U (en) * 2011-06-18 2012-02-08 山东大学 Novel self-broaching anchor rod
CN202416302U (en) * 2011-12-23 2012-09-05 浙江海洋学院普陀科学技术学院 Umbrella-shaped anchor pile
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Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104532859A (en) * 2014-12-30 2015-04-22 重庆科技学院 Slope support system with umbrella-type fixing assemblies
CN104532859B (en) * 2014-12-30 2017-03-15 重庆科技学院 There is the slope retaining system of umbellate form fixation kit
CN104832201A (en) * 2015-04-30 2015-08-12 广西大学 Expansion type anchor rod
CN104947663A (en) * 2015-07-15 2015-09-30 长江水利委员会长江科学院 Special drive type umbrella-shaped anchor for rushing to deal with emergency as well as application method of anchor
CN104947663B (en) * 2015-07-15 2017-01-18 长江水利委员会长江科学院 Special drive type umbrella-shaped anchor for rushing to deal with emergency as well as application method of anchor
CN105421450A (en) * 2015-08-27 2016-03-23 中国十七冶集团有限公司 Multi-spring-bolt-pin self-locking type anchor rod and application method thereof
CN105908740A (en) * 2016-04-18 2016-08-31 湖南大学 Pre-stressed anchor cable anchoring terminal device for deep large landslide super long anchoring
CN109469074A (en) * 2018-10-26 2019-03-15 中铁二院成都勘察设计研究院有限责任公司 A kind of cutting slope defending structure and its construction method
CN109811719A (en) * 2019-02-18 2019-05-28 东北大学 A kind of slip casting anchor stock being applicable in weak soil dykes and dams and weak soil dykes and dams anchoring construction method
CN109853555A (en) * 2019-04-10 2019-06-07 深圳宏业基岩土科技股份有限公司 The preferable anchor pole of extraction-resistant behavior
CN109930598A (en) * 2019-04-15 2019-06-25 陈林 A kind of foundation pit fender pile and foundation pit baffle
CN110565648A (en) * 2019-08-08 2019-12-13 江苏科技大学 anchor head expandable anchor rod and construction method thereof
CN110747911A (en) * 2019-10-26 2020-02-04 福州大学 Be used for half basement slip casting stock that leaks
CN110735438A (en) * 2019-10-28 2020-01-31 华北水利水电大学 high stability ecological landscape slope protection structure

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