CN104179178B - A kind of flexible umbrella support anchor rod and the method for supporting soil level sideslope - Google Patents
A kind of flexible umbrella support anchor rod and the method for supporting soil level sideslope Download PDFInfo
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- CN104179178B CN104179178B CN201410429874.9A CN201410429874A CN104179178B CN 104179178 B CN104179178 B CN 104179178B CN 201410429874 A CN201410429874 A CN 201410429874A CN 104179178 B CN104179178 B CN 104179178B
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- 239000002689 soil Substances 0.000 title claims abstract description 34
- 238000000034 method Methods 0.000 title claims abstract description 12
- 238000006243 chemical reaction Methods 0.000 claims abstract description 34
- 238000004873 anchoring Methods 0.000 claims abstract description 12
- 230000000694 effects Effects 0.000 claims abstract description 11
- 238000009434 installation Methods 0.000 claims abstract description 8
- 239000007787 solid Substances 0.000 claims abstract description 6
- 230000001681 protective effect Effects 0.000 claims abstract description 4
- 238000004804 winding Methods 0.000 claims abstract description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 21
- 239000010959 steel Substances 0.000 claims description 21
- 238000007569 slipcasting Methods 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 5
- 230000002787 reinforcement Effects 0.000 claims description 4
- 229910000838 Al alloy Inorganic materials 0.000 claims description 3
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 claims description 3
- 239000000956 alloy Substances 0.000 claims description 3
- 238000005553 drilling Methods 0.000 claims description 3
- 229910052700 potassium Inorganic materials 0.000 claims description 3
- 239000011591 potassium Substances 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 238000010276 construction Methods 0.000 abstract description 10
- 238000005516 engineering process Methods 0.000 description 5
- 230000003014 reinforcing effect Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 238000013467 fragmentation Methods 0.000 description 1
- 238000006062 fragmentation reaction Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 239000008267 milk Substances 0.000 description 1
- 210000004080 milk Anatomy 0.000 description 1
- 235000013336 milk Nutrition 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
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- Piles And Underground Anchors (AREA)
- Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
Abstract
The present invention relates to a kind of flexible umbrella support anchor rod and the method for supporting soil level sideslope, at the end winding support installation end collar and the end circular connector of circular anchor pole, 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 movable set on the right side of the middle collar; Drag parachute around circular anchor pole comprises uniform reaction plate, pull bar, Compress Spring, and one end of flexible cable and the circular hole of circular termination point of anchor rod are fixed.The soil quality dam safeguard structure adopting more than one flexible umbrella support anchor rod to be combined with earth work grille net, protective cover of vegetation and retaining wall by flexible cable is linked together, and forms one is carried out anchoring protection solid and reliablely entirety to soil quality dam.Umbrella reaction plate of the present invention, is linked together by flexible cable and safeguard structure net, and anchored force is strengthened greatly than traditional anchor pole, and anchoring effect is more reliable, can also save construction costs 50-60%.
Description
Technical field
The present invention relates to geotechnical engineering side slope protection field, particularly a kind of flexible umbrella support anchor rod and the method for supporting soil level sideslope.
Background technology
From 1912, since Germany adopts bolt support underworkings at first, bolt support is simple with its structure, and easy construction, cost are low and to features such as engineering adaptability are strong, are widely applied in civil engineering.And anchor pole uses according to it and reinforces object difference and can be divided into soil bolt and Rock Anchor, soil bolt and Rock Anchor are some is similar nominally, but its object, effect difference are very large.Rock Anchor mainly makes fragmentation by the suspension function, compound beam effect, built-up arch effect, cross-cut effect, reinforcement effect etc. of anchor pole, soft stratum reaches that self is firm.And soil bolt mainly uses 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, namely holes, be in the milk, insert anchor pole, the construction methods such as the employing press-in also had or screw-in anchor pole.Conventional anchor in flexible vegetative protection structure is adopted to have the following disadvantages at soil level sideslope at present: 1, the anchoring ability of anchor pole is not enough, often occurs that anchor pole is taken out of by slope protection structure, 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, easily cause the phenomenon that anchor pole departs from protection flexible net, thus cause partial collapse.3, because reinforced anchor bolt needs to carry out slip casting protection, to prevent the corrosion of reinforcing bar, thus engineering cost is added.If reinforced steel bar rust preventing erosion process is not in place, will make greatly reduce the application life of anchor pole, thus reduce the application life of side slope protection.4, for large-scale soil quality dam, flexible vegetative protection be carried out, need a large amount of reinforced anchor bolts, thus make construction costs very high.
Along with the current speedway of China, the building in a large number of railway, in order to maintain the stable of soil quality dam, the application of anchor pole is more extensive, therefore, is badly in need of a kind of new-type anchor pole that can overcome conventional anchor 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 the method for supporting soil level sideslope.
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 winding support installation end collar and the end circular connector of circular anchor pole, 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 movable set on the right side of the middle collar; Drag parachute around circular anchor pole comprises uniform reaction plate, pull bar, Compress Spring, the termination of reaction plate by rotating shaft and end circular connector hinged, one end of pull bar by bearing pin and lower circular connector hinged, the other end of pull bar is hinged by the middle part of axle and reaction plate, one end of Compress Spring by axle and spring circular connector hinged, 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 treatment.Described reaction plate is made up of 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 treatment.
Adopt the method for above-mentioned flexible umbrella support anchor rod supporting soil level sideslope, comprising:
1. first hole with the Soil Anchor Design position of rig in the soil body of side slope, institute's hole diameter 3cm more than larger than the diameter of the fixed end collar;
2. after drilling depth reaches designing requirement, carry out hole clearly, and bottom bolthole, carry out slip casting with grouting equipment, the slip casting degree of depth will exceed flexible umbrella support anchor rod termination 30cm, and slip casting object mainly carries out antirust treatment to flexible umbrella support anchor rod;
3. the right part of flexible cable and circular anchor pole is penetrated diameter to be greater than circular anchor pole, to be less than the auxiliary steel pipe of lower circular connector;
4. flexible umbrella support anchor rod is pushed to after at the bottom of hole along institute's drill hole wall by auxiliary steel pipe top circular connector of staying, and is extracted by auxiliary steel pipe;
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, circular connector will be driven down 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, lower circular connector is stoped by the middle collar, movement can not be produced, at this moment reaction plate will produce huge counter-force, be delivered on circular anchor pole by end circular connector and the end collar, make the flexible cable being fixedly connected on circular anchor pole lower end produce huge anchoring pulling force;
6. the soil quality dam safeguard structure adopting more than one flexible umbrella support anchor rod to be combined with earth work grille net, protective cover of vegetation and retaining wall by flexible cable is linked together, and forms one is carried out anchoring protection solid and reliablely entirety to soil quality dam.
The invention has the beneficial effects as follows: 1, compare traditional anchor pole, owing to employing umbrella reaction plate in anchor pole end, the anchored force of anchor pole is increased greatly, and construction quality is more easily guaranteed, anchoring effect is more reliable.
2, conventional anchor mainly obtains 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 by reaction plate opening and forming huge anchored force, therefore circular anchor pole in the soil body
lengthonly need, through slope body slide plane, to be linked together by flexible cable and safeguard structure net, form one is carried out anchoring protection entirety to soil quality dam solid and reliablely;
circularrock-bolt length shortens greatly, thus saves engineering material.
3, because flexible cable can adopt steel and plastic complex tie bar strip, compared 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 much more cheap 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.
Detailed description of the invention
embodiment 1as Figure 1-4: a kind of flexible umbrella support anchor rod, at the end winding support installation end collar 9 and the end circular connector 7 of circular anchor pole 1, 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 movable set on the right side of the middle collar 6; 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 by axle and spring circular connector 8 hinged, the other end of Compress Spring 5 is connected with reaction plate 2; One end of flexible cable 12 and the circular hole of circular anchor pole 1 termination are fixed.
Described circular anchor pole 1 comprises bar reinforcement or the potassium steel rod of antirust treatment.Described reaction plate 2 is made up of 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 treatment.
embodiment 2as Figure 1-5: the method adopting flexible umbrella support anchor rod supporting soil level sideslope described in embodiment 1, comprising:
1. first hole with the Soil Anchor Design position of rig in the soil body 16 of side slope, institute's hole diameter 3cm more than larger than the diameter of the fixed end collar 9;
2. after drilling depth reaches designing requirement, carry out hole clearly, and bottom bolthole, carry out slip casting with grouting equipment, the slip casting degree of depth will exceed flexible umbrella support anchor rod termination 30cm, and slip casting object mainly carries out antirust treatment to flexible umbrella support anchor rod;
3. the right part of flexible cable 12 and circular anchor pole 1 is penetrated the auxiliary steel pipe that diameter is greater than circular anchor pole 1, is less than lower circular connector 3;
4. flexible umbrella support anchor rod is pushed to after at the bottom of hole along institute's drill hole wall by auxiliary steel pipe top circular connector 3 of staying, and is extracted by auxiliary steel pipe;
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, lower circular connector 3 will be driven 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, lower circular connector 3 is stoped by the middle collar 6, movement can not be produced, at this moment reaction plate 2 will produce huge counter-force, be delivered on circular anchor pole 1 by end circular connector 7 and the end collar 9, make the flexible cable 12 being fixedly connected on circular anchor pole 1 lower end produce huge anchoring pulling force;
6. as shown in Figure 5: the soil quality dam safeguard structure adopting the flexible umbrella support anchor rod of three to be combined by flexible cable 12 and earth work grille net 13 and protective cover of vegetation 14 and retaining wall 15 is linked together, and forms one is carried out anchoring protection solid and reliablely entirety to soil quality dam.
Claims (5)
1. a flexible umbrella support anchor rod, it is characterized in that: at the end winding support installation end collar (9) and the end circular connector (7) of circular anchor pole (1), 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 movable set of the middle collar (6) right side; 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) by axle and spring circular connector (8) hinged, the other end of Compress Spring (5) is connected with reaction plate (2); One end of flexible cable (12) and the circular hole of circular anchor pole (1) termination are 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 treatment.
3. a kind of flexible umbrella support anchor rod according to claim 1, is characterized in that: described reaction plate (2) is made up of 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 treatment.
5. adopt the method for flexible umbrella support anchor rod supporting soil level sideslope described in claim 1, comprising:
1. the Soil Anchor Design position of rig in the soil body (16) of side slope is first used to hole, institute's hole diameter more than 3cm larger than the diameter of the end collar (9);
2. after drilling depth reaches designing requirement, carry out hole clearly, and bottom bolthole, carry out slip casting with grouting equipment, the slip casting degree of depth will exceed flexible umbrella support anchor rod termination 30cm, and slip casting object mainly carries out antirust treatment to flexible umbrella support anchor rod;
3. the right part of flexible cable (12) and circular anchor pole (1) is penetrated the auxiliary steel pipe that diameter is greater than circular anchor pole (1), is less than lower circular connector (3);
4. flexible umbrella support anchor rod is pushed to after at the bottom of hole along institute's drill hole wall by auxiliary steel pipe top circular connector (3) of staying, and is extracted by auxiliary steel pipe;
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, lower circular connector (3) will be driven 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, lower circular connector (3) is stoped by the middle collar (6), movement can not be produced, at this moment reaction plate (2) will produce huge counter-force, be delivered on circular anchor pole (1) by end circular connector (7) and the end collar (9), make the flexible cable (12) being fixedly connected on circular anchor pole (1) lower end produce huge anchoring pulling force;
6. the soil quality dam safeguard structure adopting more than one flexible umbrella support anchor rod to be combined with earth work grille net (13), protective cover of vegetation (14) and retaining wall (15) by flexible cable (12) is linked together, and forms one is carried out anchoring protection solid and reliablely entirety to soil quality dam.
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| 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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| 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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| CN104179178B true CN104179178B (en) | 2015-12-09 |
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| 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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| CN104179178A (en) | 2014-12-03 |
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