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 PDFInfo
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- 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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- 229910000838 Al alloys Inorganic materials 0.000 claims description 3
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- 238000005553 drilling Methods 0.000 claims description 3
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- ZLMJMSJWJFRBEC-UHFFFAOYSA-N potassium Chemical compound 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Abstract
Description
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)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410429874.9A CN104179178B (en) | 2014-08-28 | 2014-08-28 | A kind of flexible umbrella support anchor rod and the method for supporting soil level sideslope |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410429874.9A CN104179178B (en) | 2014-08-28 | 2014-08-28 | A kind of flexible umbrella support anchor rod and the method for supporting soil level sideslope |
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| CN104179178A true CN104179178A (en) | 2014-12-03 |
| CN104179178B CN104179178B (en) | 2015-12-09 |
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Cited By (12)
| 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 |
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| 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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| 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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