CN206859218U - A kind of stress peak clipping formula anchor cable reinforced suitable for large-sized rock mass structural plane - Google Patents
A kind of stress peak clipping formula anchor cable reinforced suitable for large-sized rock mass structural plane Download PDFInfo
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- CN206859218U CN206859218U CN201720429844.7U CN201720429844U CN206859218U CN 206859218 U CN206859218 U CN 206859218U CN 201720429844 U CN201720429844 U CN 201720429844U CN 206859218 U CN206859218 U CN 206859218U
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- anchor cable
- rock mass
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- stress peak
- steel strand
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Abstract
The utility model discloses a kind of stress peak clipping formula anchor cable reinforced suitable for large-sized rock mass structural plane, including Inner bolt head, outer anchor head, the steel strand wires for connecting Inner bolt head and outer anchor head, the stress peak cutting device being enclosed on steel strand wires.The stress peak cutting device is by anchor cable outer sheath tube, both ends closure set, the filler composition filled in outer sheath tube.Outer sheath tube can be customized anchor cable sleeve pipe according to prestress anchorage cable tonnage, or the independent sleeve pipe of single steel strand can be installed on every steel strand wires.Both ends plugging device is used cooperatively with outer tube, and slurries will not enter in protecting pipe during making anchor rope grouting.The utility model efficiently controls the rock mass deformation of rock mass discontinuity both sides, simultaneously, cause to produce more uniform stress in the anchor cable under the conditions of the rock mass inhomogeneous deformation of structural plane both sides by stress peak cutting device, improve the reliability of large-sized rock mass structural plane supporting, ensure stabilization of the high slope in day-to-day operation with it is reliable.
Description
Technical field
A kind of anchor cable is the utility model is related to, relates in particular to a kind of stress reinforced suitable for large-sized rock mass structural plane
Peak clipping formula anchor cable.
Background technology
It is in current Geotechnical Engineering that prestress anchorage cable is embedded in side slope, prevents the most common technological means of slope and land slide.
With the development of prestressing technique, application of the non-bonding prestress tendon in reinforcing rock slope at present is more and more wider, without viscous
The main feature of knot prestress anchorage cable has the following aspects：
(1) non-bonding prestress tendon covers one layer of PE plastics using non-bending steel cable outside common steel strand wires
Sleeve pipe, butter is inside filled, can effectively prevent steel strand wires corrosion；
(2) due to being cased with one layer of plastic bushing outside steel strand wires, steel strand wires can move freely in sleeve pipe, utilize this
Characteristic, Inner bolt head is installed under the heading of steel strand wires end, when prestressed stretch-draw is carried out, steel strand wires termination is pressed in Inner bolt head
On, Inner bolt head forms compression on rock mass, belongs to pressure anchor cable；
(3) non-bonded anchorage cable due to its with rock mass be not closely bond completely together with, so, deformed in rock mass
When, it can carry out prestressing force adjustment in the larger context, avoid in the distance of very little anchor cable deformation excessive, damage
It is bad；
(4) another important feature of non-bonded anchorage cable is exactly quick construction, in construction can a total length slip casting, this
Sample side slope can carry out supporting, accelerating construction progress in time.
But the shortcomings that non-bonded anchorage cable maximum, is exactly：Once outer anchor head failure, whole anchor cable will fail.
In contrast to this, binding type anchor cable has larger advantage, after outer anchor head failure, due between mortar and anchor cable
Bond stress still has, and prestress anchorage cable still can play the effect of its slope reinforcement.
Utility model content
In view of the foregoing, the purpose of this utility model is to provide a kind of suitable for the new of large-sized rock mass structural plane reinforcing
Stress peak clipping formula anchor cable.
To achieve the above object, the utility model uses following technical scheme：One kind is applied to large-sized rock mass structural strengthening
Stress peak clipping formula anchor cable, including Inner bolt head, outer anchor head, connection Inner bolt head and outer anchor head steel strand wires, it is characterised in that：It is also
Including the stress peak cutting device being enclosed on steel strand wires；The stress peak cutting device is covered, outside anchor cable by anchor cable outer sheath tube, both ends closure
The filler composition of filling in protecting pipe；Anchor cable outer sheath tube can be customized according to prestress anchorage cable tonnage and twist all steel
Line is wrapped up, or the independent sleeve pipe of single steel strand can be installed on every steel strand wires；Both ends closure set and anchor cable outer sheath tube
It is used cooperatively, slurries will not enter in anchor cable outer sheath tube during making anchor rope grouting.
In the utility model preferred embodiment, filler in the anchor cable outer sheath tube for paraffin or industrial butter or
Other commercial greases.
In the utility model preferred embodiment, the installation site of the stress peak cutting device, length are according to being reinforced side
The engineering mechanics feature of the structural plane on slope determines.
The utility model is primarily adapted for use in large-sized rock mass structural plane, and (large-sized rock mass structural plane here refers mainly to influence rock matter
The longer all kinds of structural planes of the ductility of stability of high slope, such as small to middle fault, weak intercalated layer and large-scale hard structural plane)
Consolidation process.The utility model can take into account the advantages of binding type anchor cable is with soap-free emulsion polymeization type anchor cable, can efficiently control rock mass
The rock mass deformation of structural plane both sides, the utility model is by stress peak cutting device so that anchor cable in structural plane both sides rock mass not
More uniform stress is produced under uniform deformation condition, improves the reliability of large-sized rock mass structural plane supporting, ensures that high slope exists
Stability and reliability in day-to-day operation.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model；
Fig. 2 is rock side slope prestressed anchor reinforcement schematic diagram；
Fig. 3 is the utility model and non-bonding prestress tendon, binding prestress anchor cable along Cheng Zhangli force diagrams.
Embodiment
Structure of the present utility model is described in further detail below in conjunction with the accompanying drawings.
As shown in figure 1, stress peak clipping formula anchor cable disclosed in the utility model includes anchor in Inner bolt head 1, outer anchor head 2, connection
The steel strand wires 3 of head and outer anchor head, and the stress peak cutting device 4 being enclosed on steel strand wires.
The stress peak cutting device 4 mainly filling by being filled in anchor cable outer sheath tube, both ends closure set, anchor cable outer sheath tube
Thing forms.Anchor cable outer sheath tube can be customized according to prestress anchorage cable tonnage and wrap up all steel strand wires, or can be every
The independent sleeve pipe of single steel strand is installed, this mainly needs to carry out according to Practical Project on root steel strand wires.Both ends closure set
It is used cooperatively with outer sheath tube, slurries will not enter in outer sheath tube during making anchor rope grouting.
The stress peak cutting device mainly determines installation site by the anchor cable drilling of early stage, is located at and is reinforced side slope
At structural plane, and the length of the engineering mechanics feature identified sign peak cutting device by being reinforced face.
In specific embodiment of the utility model, the filler being filled in anchor cable outer sheath tube can be paraffin, work
Industry butter or other commercial greases.
As shown in Fig. 2 in construction, the drilling of several anchor cables is drilled with advance in the side slope being reinforced, this practicality is new
In type implantation anchor cable drilling, make stress peak cutting device positioned at being reinforced at the structural plane of side slope, then, injected in being drilled toward anchor cable
Cement mortar.
Stress peak clipping formula anchor cable in the utility model, can effectively by non-bonding prestress tendon, have bond in advance should
The advantages of power anchor cable, is combined together, i.e., once grouting method can be used to carry out anchor cable construction, improve anchor cable construction efficiency；And
The advantages of non-bonded anchorage cable can carry out Stress relief in a big way can also be protruded at the larger position of rock mass deformation, make pre- answer
The slope retaining that power anchor cable is carried out has higher safety assurance.Fig. 3 is the utility model and non-bonding prestress tendon, bonding
Prestress anchorage cable is along Cheng Zhangli force diagrams, it can be seen that this feature of the present utility model.
The utility model, which is directed in side slope, has the problem of controlling structural plane, can ensure the branch in large-sized rock mass side slope
Anchor cable is protected, in the range of the certain length at structural plane, as rock mass deformation effectively adjusts the local stress concentration of anchor cable, is changed
Conventional anchor cable local stress is very high, the situation of possible yield failure, makes whole prestress anchorage cable length range internal stress more flat
, it is horizontal to improve the supporting that prestress anchorage cable plays in side slope running with rock mass deformation, ensures that rock side slope can be grown
Time healthy and stable operation.
The utility model is primarily adapted for use in large-sized rock mass structural plane, and (large scale structure face here refers mainly to influence rock matter flash
The longer all kinds of structural planes of the stable ductility in slope, such as small to middle fault, weak intercalated layer and large-scale hard structural plane) reinforcing
Processing.The utility model can take into account the advantages of binding type anchor cable is with soap-free emulsion polymeization type anchor cable, can efficiently control rock mass structure
The rock mass deformation of face both sides, can also be by the stress peak cutting device in the utility model so that in structural plane in the anchor cable
More uniform stress is produced under the conditions of the rock mass inhomogeneous deformation of both sides, improves the reliability of large-sized rock mass structural plane supporting, is protected
Demonstrate,prove stabilization of the high slope in day-to-day operation with it is reliable.
The technical principle described above for being preferred embodiment of the present utility model and its being used, for the technology of this area
It is any to be based on technical solutions of the utility model base in the case of without departing substantially from spirit and scope of the present utility model for personnel
Equivalent transformation, simple replacement on plinth etc. are obvious to be changed, and is belonged within scope of protection of the utility model.
Claims (3)
1. it is a kind of suitable for large-sized rock mass structural plane reinforce stress peak clipping formula anchor cable, including Inner bolt head, outer anchor head, connection in anchor
The steel strand wires of head and outer anchor head, it is characterised in that：It also includes the stress peak cutting device being enclosed on steel strand wires；
The stress peak cutting device is made up of the filler filled in anchor cable outer sheath tube, both ends closure set, anchor cable outer sheath tube；
Anchor cable outer sheath tube is customized according to prestress anchorage cable tonnage and wraps up all steel strand wires, or on every steel strand wires
The independent sleeve pipe of single steel strand is installed；
Both ends closure set is used cooperatively with anchor cable outer sheath tube, and slurries will not enter anchor cable outer sheath tube during making anchor rope grouting
It is interior.
2. a kind of stress peak clipping formula anchor cable reinforced suitable for large-sized rock mass structural plane according to claim 1, its feature
It is：Filler in the anchor cable outer sheath tube is paraffin or industrial butter.
3. a kind of stress peak clipping formula anchor cable reinforced suitable for large-sized rock mass structural plane according to claim 2, its feature
It is：Installation site, the length of the stress peak cutting device determine according to the engineering mechanics feature for the structural plane for being reinforced side slope.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720429844.7U CN206859218U (en) | 2017-04-21 | 2017-04-21 | A kind of stress peak clipping formula anchor cable reinforced suitable for large-sized rock mass structural plane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720429844.7U CN206859218U (en) | 2017-04-21 | 2017-04-21 | A kind of stress peak clipping formula anchor cable reinforced suitable for large-sized rock mass structural plane |
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| Publication Number | Publication Date |
|---|---|
| CN206859218U true CN206859218U (en) | 2018-01-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720429844.7U Active CN206859218U (en) | 2017-04-21 | 2017-04-21 | A kind of stress peak clipping formula anchor cable reinforced suitable for large-sized rock mass structural plane |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106988311A (en) * | 2017-04-21 | 2017-07-28 | 中国水利水电科学研究院 | A kind of stress peak clipping formula anchor cable reinforced suitable for large-sized rock mass structural plane |
-
2017
- 2017-04-21 CN CN201720429844.7U patent/CN206859218U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106988311A (en) * | 2017-04-21 | 2017-07-28 | 中国水利水电科学研究院 | A kind of stress peak clipping formula anchor cable reinforced suitable for large-sized rock mass structural plane |
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