CN110067251A - For the prefabricated reinforced concrete anchor pier of slope reinforcement and production and construction method - Google Patents
For the prefabricated reinforced concrete anchor pier of slope reinforcement and production and construction method Download PDFInfo
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- CN110067251A CN110067251A CN201910299594.3A CN201910299594A CN110067251A CN 110067251 A CN110067251 A CN 110067251A CN 201910299594 A CN201910299594 A CN 201910299594A CN 110067251 A CN110067251 A CN 110067251A
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- 239000011150 reinforced concrete Substances 0.000 title claims abstract description 72
- 230000002787 reinforcement Effects 0.000 title claims abstract description 44
- 238000010276 construction Methods 0.000 title claims abstract description 29
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 26
- 239000004567 concrete Substances 0.000 claims abstract description 149
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 45
- 238000009434 installation Methods 0.000 claims abstract description 12
- 229910000831 Steel Inorganic materials 0.000 claims description 29
- 239000010959 steel Substances 0.000 claims description 29
- 210000003205 muscle Anatomy 0.000 claims description 28
- 238000000034 method Methods 0.000 claims description 18
- 238000013461 design Methods 0.000 claims description 14
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- 238000005553 drilling Methods 0.000 claims description 11
- 238000012423 maintenance Methods 0.000 claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
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- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims description 3
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- 238000004321 preservation Methods 0.000 claims description 3
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- 238000010586 diagram Methods 0.000 description 12
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- 229910001294 Reinforcing steel Inorganic materials 0.000 description 2
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- 238000000465 moulding Methods 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/20—Securing of slopes or inclines
- E02D17/205—Securing of slopes or inclines with modular blocks, e.g. pre-fabricated
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/20—Securing of slopes or inclines
- E02D17/207—Securing of slopes or inclines with means incorporating sheet piles or piles
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/74—Means for anchoring structural elements or bulkheads
- E02D5/76—Anchorings for bulkheads or sections thereof in as much as specially adapted therefor
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
It is a kind of for the prefabricated reinforced concrete anchor pier of slope reinforcement and its production and construction method, the prefabricated reinforced concrete anchor pier is non-prestressed component, intersects the armored concrete anchor pier unit of criss-cross crossbeam and stringer, positioned at the concrete rib of the armored concrete anchor pier unit surrounding and positioned at the anchor head of crossbeam and stringer infall including having；Reinforcing bar is provided in the crossbeam and stringer.Prefabricated reinforced concrete anchor pier of the invention uses the armored concrete lattice girder of specific structure, the section performance of beam can be improved, bear bigger anchor force, the cast-in-place armored concrete lattice girder of tradition is solved when encountering the larger situation of anchorage cable anchoring power, the defect that stiffness of structural member may be caused to decline by drawing crack in span centre position；Prefabricated armored concrete anchor pier can also simplify manufacture craft, facilitate installation and be easy to adjust when installing, and shorten construction period, and saved construction cost.
Description
Technical field
The present invention relates to slope reinforcements, the technical field of restoration of the ecosystem, and in particular to a kind of for the prefabricated of slope reinforcement
Armored concrete anchor pier and its production and construction method.
Background technique
China is the country on more mountains, and plateau, hills and mountainous region account for China's land area about 70%, can all occur every year
A large amount of landslide, avalanche and mud-stone flow disaster.Furthermore be frequently run onto when smooth location in civil engineering massif heavy excavation,
Situations such as slope, needs to cut periphery massif, and cutting operation can destroy original balance.In order to guarantee side slope and its
The safety of environment, it is necessary to which side slope takes supporting, reinforcing and safeguard procedures.Side slope anchor pole (rope) lattice reinforcement technique has arrangement
Flexibly, the remarkable advantages such as lattice is various informative, section is easy to adjust and slope surface is closely connected, can make use of momentum with slope are normal in slope reinforcement
A kind of method.
When in the prior art, using anchor pole (rope) lattice girder reinforcing side slope, the mode of construction of concrete lattice beam is usual
Be by the way of cast in situs, the disadvantage is that: (1) cast-in-place lattice girder make when, due to side slope grooving, template processing, reinforcing bar
The processes such as binding, concreting, maintenance are more, and work progress entirety mechanization degree is low, leads to required construction period
It is partially long；(2) cast in situs process is more, and influence factor is more, so that the quality of cast-in-place concrete lattice girder cannot ensure；(3)
The outer anchor structures such as the tensioning palpus of prestressed anchor (rope) just can be carried out after reaching design strength, and the integral construction period is usually due to outer
The maintenance of anchor structure object and seriously delay；(4) the cast-in-place armored concrete lattice girder of tradition is encountering the larger feelings of anchorage cable anchoring power
When condition, stiffness of structural member may be caused to decline by drawing crack in span centre position, influence overall stability.
Summary of the invention
To solve the above problems, the present invention provides a kind of prefabricated reinforced concrete anchor piers and its system for slope reinforcement
Make and construction method, have reduce site operation step, shorten construction period, realize standardized management production, guarantee quality,
Economic and environment-friendly feature.
The present invention adopts the following technical scheme that realization:
The first aspect of the present invention provides a kind of prefabricated reinforced concrete anchor pier for slope reinforcement, the pre-manufactured steel
Reinforced concrete anchor pier is non-prestressed component, comprising: armored concrete anchor pier unit, concrete rib and anchor head；
The armored concrete anchor pier unit includes prefabricated intersecting criss-cross crossbeam and stringer；
The concrete rib is located at the armored concrete anchor pier unit surrounding；
The anchor head is located at the infall of the crossbeam and stringer, for being inserted into anchor pole；
Wherein, reinforcing bar is provided in the crossbeam and stringer.
Further, the height of the concrete rib is lower than the height of the armored concrete anchor pier unit.
Further, the height of the armored concrete anchor pier unit is 400-600mm；The height of the concrete rib is
200-500mm。
Further, longitudinal height of the crossbeam and stringer gradually becomes smaller from centre to both ends.
Further, vertical muscle, stirrup and waist muscle are provided in the crossbeam and stringer；
Wherein, four along the cross section for being disposed longitudinally on the crossbeam and stringer of the crossbeam and stringer of the vertical muscle
On angle；The stirrup surrounds the vertical muscle；The waist muscle is arranged in the stirrup close to the crossbeam or stringer lower part and connects
Touch the stirrup.
Further, the concrete rib includes Rectangular Concrete rib or round concrete rib；
Latticed reinforcing bar is laid in the Rectangular Concrete rib；Latticed reinforcing bar is provided in the circle concrete rib
Or radial reinforcing bar；
Wherein, the reinforcing bar is at least the HRB335 of 10mm for HRB400 regular reinforcement, diameter that diameter is at least 20mm
Stirrup or HRB400 stirrup.
Further, the anchor head includes groove, backing plate and anchor hole；
Wherein the groove is set to the top of the crossbeam and stringer infall, and the backing plate is placed in the groove-bottom
On face；The lower part of the backing plate and the infall is provided with the identical anchor hole of diameter, for being inserted into the anchor pole.
The second aspect of the present invention provides the prefabricated reinforced concrete anchor pier that a kind of basis is previously described for slope reinforcement
Production method, include the following steps:
Step 1 processes the mold of the armored concrete anchor pier；
According to the mold for manufacturing and designing the production armored concrete anchor pier；It is pre- in crossbeam, stringer intersection on mold
It stays groove, reserve anchor hole duct at the position for penetrating anchor pole；
Step 2, in precasting yard according to design banding steel cage；
Bar types, diameter, size and number are first checked when Steel Reinforcing Bar Material, are calculated cutting length, are then truncated, steel
Muscle takes a platform when being bent on bender；
Bar spacing line is arranged on pedestal, for controlling cloth muscle size, pretensioning reinforcing bar, then binds crossbeam
Vertical muscle and stirrup in stringer, form the steel reinforcement cage of the armored concrete anchor pier；
Step 3, casting concrete；
Installation mold and it is put into the steel reinforcement cage of the armored concrete anchor pier bound on the fixed base of precasting yard,
Then casting concrete；
Step 4, curing concrete anchor pier；
The armored concrete anchor pier is conserved, concrete anchor pier upper cover is set into cover, is periodically sprinkled water on cover,
Watering number is degree with the surface moisture of concrete anchor pier；
Curing time is no less than the predetermined time, the demoulding after concrete reaches design strength and elasticity modulus；
Step 5, pile store the concrete anchor pier；
Armored concrete anchor pier maintenance reach after design strength and elasticity modulus from maintenance area be transported to pile area into
Row pile, storage are stand-by.
Further, further includes:
Step 6 places the steel pad for being equipped with the anchor hole passed through for anchor pole in the groove of the armored concrete anchor pier
Plate.
The third aspect of the present invention provides a kind of using foregoing prefabricated reinforced concrete anchor pier reinforcing side slope
Construction method, comprising the following steps:
Step 1, the preparation before reinforcing；
Side slope slope surface is modified, and is set up scaffold in side slope surface, is removed rock slag, the surface dust of slope surface and side slope bottom
Or crag, the smooth scar of dabbing prevent phenomenon of slipping；
Step 2 carries out side slope anchor hole construction；
Measuring and the label of side slope anchor hole are carried out in side slope, side slope anchor hole deviations are not more than 20mm, and hole location is inclined
The degree of skewness at angle is not more than 5%；
It is drilled with side slope anchor hole using mark of the drilling machine in side slope, drilling depth is more than that the difference of rock-bolt length is not less than
0.5m；
After the completion of drilling, water, dross and dust in cleaning hole and at aperture, borehole cleaning sequence is from top to bottom；
After the completion of borehole cleaning, aperture is temporarily blocked, broken shoulder sundries is avoided to enter in side slope anchor hole；
Step 3 is implanted into anchor pole；
First check whether side slope anchor hole is intact with probe before rockbolt installation, if thering is collapse hole, chip off-falling to clear up or handle in advance；Anchor
Bar must not rotate when entering hole, and anchor pole enters firmly uniform when hole；
Step 4, slip casting in Xiang Bianpo anchor hole；
Using grout material, joints cement mortar in Xiang Bianpo anchor hole；
Step 5, hoisting prefabricated reinforced concrete anchor pier；
Leveling is carried out to slope surface backing, so that armored concrete anchor pier can be fitted closely with slope surface；
Successively step 1, side slope slope surface reinforced before pretreatment；
Step 2 carries out side slope anchor hole construction；
Measuring and the label of side slope anchor hole are carried out in side slope, side slope anchor hole deviations are not more than 20mm, and hole location is inclined
The degree of skewness at angle is not more than 5%；Mark in side slope is drilled with side slope anchor hole, drilling depth be more than the difference of rock-bolt length not
Less than 0.5m；
Step 3 is implanted into anchor pole in side slope anchor hole；
Step 4, slip casting in Xiang Bianpo anchor hole；
Using grout material, joints cement mortar in Xiang Bianpo anchor hole；
Step 5, hoisting prefabricated reinforced concrete anchor pier；
The successively position that several assembled prefabricated reinforced concrete anchor piers of handling are set to side slope surface, adjacent several
The crossbeam of the armored concrete anchor pier unit is mutually aligned or connect with crossbeam, stringer and stringer, forms multiple " well " fonts
The prefabricated reinforced concrete anchor pier being put together；
Step 6 carries out anchor head to block protection processing；
It is placed with steel backing plate in the bottom portion of groove of each prefabricated reinforced concrete anchor pier unit, anchor pole sequentially passes through described
Anchor hole on groove and backing plate；Anchor pole positioned at backing plate top uses nut check, fills at groove position, anchor pole and nut
C25 concrete blocks, using steel cage protection or preservation rouge；
Step 7, the tensioning and locking of anchor pole；
According to the tensioning fixation technique that live pulling test determines, classification applies tensile load, and every grade of tensile load is stablized
Carry out the application of next stage tensile load again afterwards；
If after completing the predetermined time stress relaxation occurs for anchor pole tensioning, tensioning is compensated；
Step 8, side slope anchor hole carry out secondary grouting；
After anchor pole tension test is qualified, secondary grouting processing is carried out using cement system or synthetic resin system grout material.
In conclusion the present invention provides a kind of for the prefabricated reinforced concrete anchor pier of slope reinforcement and its production and applies
Work method, compared with prior art, the present invention have following beneficial technical effect:
1, prefabricated reinforced concrete anchor pier anchoring system of the invention is by mutually arranged group of several precast concrete anchor piers
It closes, does not need tension reinforcing steel bar, the production of concrete anchor pier is eased, installation is lighter and is easy to adjust when installing.
2, the armored concrete lattice girder of prefabricated reinforced concrete anchor pier of the invention using the above structure, can improve beam
Section performance bears bigger anchor force, solve the cast-in-place armored concrete lattice girder of tradition encounter anchorage cable anchoring power compared with
When big situation, the defect of stiffness of structural member decline may be caused by drawing crack in span centre position；Prefabricated armored concrete anchor pier is also
The thickness of beam body can be reduced or reduce steel bar stress, stock utilization is improved, thus more economically.
3, the production method of the prefabricated reinforced concrete anchor pier for slope reinforcement of the invention, be prefabricated in the factory process
In, standardized management, production may be implemented, make that optimum state can be reached in prefabricated reinforced concrete anchor pier stress and moulding, protect
The quality of prefabricated reinforced concrete anchor pier is demonstrate,proved.
4, armored concrete anchor pier unit is to complete in advance in factory, only need to after the completion of side slope anchor bolt construction incite somebody to action
Prefabricated reinforced concrete anchor pier transports to side slope scene and carries out lifting anchoring, eliminate needed in conventional method side slope slot,
Formwork such as assembling reinforcement, pours, conserves, demoulding, detecting at the processes, largely shortens construction period, has saved cost.
5, prefabricated reinforced concrete anchor pier of the invention is connected with each other by several prefabricated reinforced concrete anchor piers,
Compared with the prior art for the construction technology of the lattice girder of slope surface cast in situs, scene only needs lifting, easy construction
Efficiently, technical requirements are low.
6, it does not need to compare in slope surface grooving to be embedded in the concrete anchor pier when installing using prefabricated reinforced concrete anchor pier
It is needed when pouring on site in the artificial grooving of side slope surface to make lattice girder be embedded in slope surface certain depth, the present invention is more time saving
It is laborsaving.
Detailed description of the invention
Fig. 1 (a) is the prefabricated rectangle concrete anchor pier tight type arrangement mode that the present invention is reinforced for side slope emergency repair
Schematic diagram；Fig. 1 (b) is that the pre- round concrete anchor pier tight type arrangement mode that the present invention is reinforced for side slope emergency repair shows
It is intended to；
Fig. 2 (a) is the prefabricated rectangle concrete anchor pier loose type type arrangement side that the present invention is reinforced for side slope emergency repair
Formula schematic diagram；Fig. 2 (b) is the pre- round concrete anchor pier loose type type arrangement side that the present invention is reinforced for side slope emergency repair
Formula schematic diagram；
Fig. 3 is the side view of prefabricated reinforced concrete anchor pier of the invention；
Fig. 4 (a) is the schematic diagram of Rectangular Concrete anchor pier of the present invention；Fig. 4 (b) is showing for round concrete anchor pier of the invention
It is intended to；
Fig. 5 is the portion the A partial enlargement diagram in Fig. 4 (a)；
Fig. 6 is Rectangular Concrete anchor pier B-B longitudinal sectional drawing of the present invention；
Fig. 7 is the crossbeam of armored concrete anchor pier of the present invention and the schematic cross-section of stringer；
Fig. 8 (a) is rectangular fin sectional reinforcement schematic diagram；Fig. 8 (b) is circular rib sectional reinforcement schematic diagram；
Fig. 9 is flow diagram of the present invention for the production method of the prefabricated reinforced concrete anchor pier of slope reinforcement；
Figure 10 is the edge slope structure schematic diagram that precast concrete anchor pier of the invention is reinforced；Figure 11 is that use of the invention is pre-
The construction method flow diagram of armored concrete anchor pier reinforcing side slope processed.
Appended drawing reference is as follows: 1- prefabricated rectangle concrete anchor pier；1 '-pre- round concrete anchor pier；2- prefabricated rectangle is mixed
Solidifying soil anchor pier unit；2 '-pre- round concrete anchor pier units；3- rectangular fin；3 '-circular ribs；4,4 '-anchor head；21,21'-
Crossbeam；22,22 '-stringer；41- groove；42- backing plate；43- anchor hole；44- anchor pole；51- stirrup；52- indulges muscle；53- waist muscle；6- spiral shell
It is female；7- concrete blocks；8- side slope.
Specific embodiment
In order to make the objectives, technical solutions and advantages of the present invention clearer, With reference to embodiment and join
According to attached drawing, the present invention is described in more detail.It should be understood that these descriptions are merely illustrative, and it is not intended to limit this hair
Bright range.In addition, in the following description, descriptions of well-known structures and technologies are omitted, to avoid this is unnecessarily obscured
The concept of invention.
As shown in figures 1 to 6, the present invention provides a kind of prefabricated reinforced concrete anchor pier 1 for slope reinforcement, including it is pre-
That makes is a plurality of as made of crossbeam 21 and the intersection of stringer 22, the armored concrete anchor pier unit 2 of reinforced concrete structure, and being located at should
The concrete rib 3 of 2 surrounding of armored concrete anchor pier unit, and positioned at the anchor head 4 of 22 infall of crossbeam 21 and stringer, the anchor
Head 4 is for being inserted into anchor pole 44.The armored concrete anchor pier 1 is non-prestressed component, and armored concrete anchor pier unit 2 is also non-
Prestressed component, concrete strength are not less than C25.The beam of the prefabricated reinforced concrete anchor pier unit is respectively divided into 3 seed types,
For selecting according to different needs: being respectively length 1m, 1.5m and 2m, it is preferred that crossbeam and stringer equal length.
As shown in Fig. 1 (a) and 1 (b), concrete rib includes Rectangular Concrete rib 3 or round concrete rib 3 ', passes through setting
Round or Rectangular Concrete rib increases the contact area of anchor pier and side slope, and precast prestressed concrete anchor pier side slope can be improved
Reinforcement ability, soft for soil property, the slope reinforcement of the slide area Yi Fasheng has better effect.
When using above-mentioned prefabricated reinforced concrete anchor pier reinforcing side slope, anchor pier array is arranged in side slope, adjacent anchor
Crossbeam, the stringer of pier unit are mutually aligned or connect, and according to the geological conditions of actual installation side slope, can closely connect, i.e.,
It hardly interspaces between adjacent anchor pier, as shown in Figure 1, can also be with loose arrangement, as shown in Figure 2.
Fig. 3 is the side view of precast concrete anchor pier of the invention, it can be seen that the height of concrete rib 3 is lower than reinforcing bar
Concrete anchor pier unit 2 is the height of crossbeam 21 and stringer 22.The height of the armored concrete anchor pier unit 2 is 400-600mm,
The height of the concrete rib 3 is 200-500mm.Setting can reduce raw material, save the cost in this way.As shown in figs. 3 and 6, horizontal
Longitudinal height of beam 21 and stringer 22 gradually becomes smaller from centre to both ends, to improve the bearing capacity of anchor head 4.
Fig. 4 (a), (b) are the schematic diagram of rectangle of the present invention and round concrete anchor pier respectively, and Fig. 5 is the portion A in Fig. 4 (a)
Partial enlargement diagram, Fig. 6 are the B-B longitudinal profiles in Fig. 4 (a).Figure is as it can be seen in figures 5 and 6, in concrete anchor pier unit 2
Heart infall offers anchor head 4；Anchor head 4 includes concrete groove 41 and the backing plate 42 for being placed in groove surfaces, in groove
41 and backing plate 42 on open up anchor hole 43, when installation, penetrates for anchor pole 44.Wherein, as shown in fig. 6, groove 41 is in reverse frustoconic,
Upper diameter is big, and lower diameter is small.Backing plate 42 is steel backing plate, and when installation increases the forced area of anchor pole, plays pressure-bearing,
For protecting the unlikely damage in anchor pole tensioning of the concrete structure of prefabricated reinforced concrete anchor pier.
As shown in Figure 1,5, every four concrete anchor piers unit 2 i.e. crossbeam, stringer is interconnected to form anchor head；It is each mixed
The crossbeam of solidifying soil anchor pier unit 2 and crossbeam, stringer and the adjacent concrete anchor pier unit 2 of adjacent concrete anchor pier unit 2
Stringer be mutually coupled respectively, form the arrangement of multiple " well " fonts, several " well " font splits form and are used for slope reinforcement
2 arranged array of prefabricated rectangle concrete anchor pier.The concrete rib 3 of the present embodiment makes the splicing between concrete anchor pier unit 1
It is fixed, it is eased, also enhance the whole stability of prefabricated rectangle concrete anchor pier 2.
Concrete anchor pier unit 2 of the invention is reinforced concrete member.The concrete anchor pier unit 2 is non-prestressed structure
The concrete strength of part, the concrete anchor pier unit 2 is not less than C25.It is illustrated in figure 7 the cross section of crossbeam and stringer, crossbeam
With vertical muscle 52, stirrup 51 and waist muscle 53 are provided in stringer；Wherein, it indulges muscle 52 and is disposed longitudinally on the cross along crossbeam and stringer
On four angles of the rectangular cross section (or cross section of other shapes) of beam and stringer；Stirrup 51 surrounds vertical muscle 52 and is formed as square
Shape；Waist muscle 53 is arranged inside stirrup close to crossbeam or stringer lower contacts stirrup 53.The size of 22 inside reinforcing bar of stringer uses
At least steel strand wires of Φ 12, diameter are at least the HRB400 regular reinforcement of 20mm, diameter be at least 10mm HRB335 or
HRB400 stirrup；For the size of 21 inside reinforcing bar of crossbeam using 12 steel strand wires of Φ are at least, the HRB400 that diameter is at least 20mm is general
Logical reinforcing bar, diameter are at least HRB335 the or HRB400 stirrup of 10mm.Reinforcing bar can be replaced with FRP complex fiber material, to play
It is anti-electric, prevent the effects of signal interference.Vertical muscle is set and stirrup can be enhanced the intensity of crossbeam and stringer, setting waist muscle limit by
Excessively high in beam section and generation contraction fissure, while the rigidity for increasing beam framework is played, reduce the work of tensile region crack developing
With.Prefabricated armored concrete anchor pier can also reduce the thickness of beam body or reduce steel bar stress, stock utilization be improved, thus more
Add economy.In addition, being not necessarily to tension reinforcing steel bar using nonprestressed reinforcement, simplifying production technology.
As shown in Fig. 8 (a), 8 (b), transverse and longitudinal cross wise reinforcement is laid in Rectangular Concrete rib, i.e., latticed reinforcing bar；It is round
Latticed reinforcing bar or radial reinforcing bar can be set in concrete rib, to improve the intensity of concrete rib.Wherein, concrete rib
The size of 3 inside reinforcing bars is at least the HRB335 stirrup of 10mm using HRB400 regular reinforcement, the diameter that diameter is at least 20mm
Or HRB400 stirrup.
Another aspect of the present invention also provides a kind of production method of prefabricated reinforced concrete anchor pier for slope reinforcement,
For making armored concrete anchor pier above-mentioned, as shown in Figure 9, comprising the following steps:
Step 1 S100 processes the mold of prefabricated reinforced concrete anchor pier 1.
In factory, according to the mold for manufacturing and designing production pre-cast concrete concrete；It makes and installs by design drawing, be made
Mold with concrete rib and cross beam body；Groove is reserved in the crossbeam of mold, stringer intersection, can be use
One abaculus forms above-mentioned groove；Anchor hole duct is reserved at the position that anchor pole is penetrated on mold, can be using an abaculus shape
At above-mentioned anchor hole duct；
Mold should be assembled and disassembled manually, carry out inspection Check adjustment to each position size after installation, and assembled error should reach design
And code requirement.
Step 2 S200, in precasting yard according to design banding steel cage.
Bar types, diameter, size and number are first checked when Steel Reinforcing Bar Material, are calculated cutting length, are then truncated, steel
Muscle takes a platform when being bent on bender；Reinforcing bar after bending should be listed after meeting the requirements on inspection and deposit in clean and tidy field
In ground, the reinforcing bar for preventing specifications and models different mixes heap and leaves about；
Bar spacing line is arranged on pedestal, for controlling cloth muscle size, pretensioning reinforcing bar, then binds crossbeam
With the vertical muscle and stirrup in stringer, the steel reinforcement cage of armored concrete anchor pier unit is formed.
Step 3 S300, casting concrete.
The installation template on the fixed base of precasting yard, and it is put into the reinforcing bar of the prefabricated reinforced concrete anchor pier 2 bound
Cage；
Using the concrete of intensity C25, before pouring, seam, the stay-bolt, mould of 2 mold of armored concrete anchor pier are checked
Plate connection bolt and footing chock, the branch of mold are stood solid and reliable；When pouring, the blanking of uniformly continuous ground；Intensively locate in reinforcing bar, makes
With plug-in type vibrating stick to assist blanking.
During filling concrete, formwork reinforcement situation check at any time, should be blocked in time at spillage.
Step 4 S400, curing concrete anchor pier.
The concrete to have vibrated is moved into health area, armored concrete anchor pier is conserved, by precast concrete anchor pier
Upper cover sets cover, forbids the material easily to decolourize using water breakthroughs such as straw bag classes to cover prefabricated component, to prevent polluting its appearance；
Timing is sprinkled water on cover, and number of sprinkling water is degree with the surface moisture of armored concrete anchor pier；Curing time is many
In the predetermined time, generally 7 days, the demoulding after concrete reaches design strength and elasticity modulus.
Step 5 S500, pile store the concrete anchor pier.
Prefabricated reinforced concrete anchor pier maintenance reach design strength and elasticity modulus after, from maintenance area be transported to pile area into
Row pile, storage are stand-by；It handles with care in transhipment journey, forbids damaged member, prefabricated components stacking height is no more than 2 meters.
Above-mentioned steps S100-S500 makes to obtain prefabricated reinforced concrete anchor pier of the invention, has and makes simple, peace
The features such as dress is convenient, rigidity is strong, not easy to crack.
Further, further include step 6 S600, place and be equipped with for anchor in the groove 41 of armored concrete anchor pier unit 2
The steel backing plate 42 for the anchor hole 43 that bar passes through.Optionally, which can the completion when installing concrete anchor pier to side slope.
The production method of prefabricated reinforced concrete anchor pier for slope reinforcement of the invention, during being prefabricated in the factory,
Standardized management, production may be implemented, make that optimum state can be reached in prefabricated reinforced concrete anchor pier stress and moulding, ensure that
The quality of prefabricated reinforced concrete anchor pier.
Another aspect of the present invention additionally provides a kind of edge slope structure reinforced using prefabricated rectangle concrete anchor pier, such as schemes
Shown in 10, including several prefabricated reinforced concrete anchor piers 1 above-mentioned, it is interconnected by several 2 phases of prefabricated reinforced concrete anchor pier unit
It connects the prefabricated reinforced concrete anchor pier 1 to be formed and is parallel to the placement of side slope 8, adjacent prefabricated reinforced concrete unit is mutually aligned
And/or connection.The side slope anchor hole opened up on anchor hole 43 and side slope 8 on each armored concrete anchor pier unit 2 aligns, anchor pole
44 sequentially pass through anchor hole 43 on the groove 41 and backing plate 42 of prefabricated reinforced concrete anchor pier unit 2, are plugged on side slope anchor hole
In duct, to fix the prefabricated reinforced concrete anchor pier.Slurry is poured into the duct of side slope anchor hole with the progress of side slope anchor hole
It blocks.Anchor pole 44 positioned at 42 top of backing plate is locked using nut 6；The exposed parts of groove 41, anchor pole 44 and nut 6 are carried out
Block protection.Preferably, 7 are blocked to the exposed parts filling C25 concrete of groove 41, anchor pole 44 and nut 6, or adds steel cage
Protection, or smear anti-corrosion grease and carry out closure protection.
The present invention finally additionally provides a kind of edge slope structure using prefabricated reinforced concrete anchor pier and carries out reinforcing side slope
Construction method, as shown in figure 11, comprising the following steps:
Step 1 S100 ', the preparation before reinforcing, i.e. side slope slope surface reinforced before pretreatment.
(1) scaffold is set up in the slope surface to reinforcing side slope 8, removes rock slag, surface dust or the crag of slope surface and side slope bottom,
The smooth scar of dabbing, prevents phenomenon of slipping；
(2) it is modified in the slope surface to reinforcing side slope 8, if slope surface is excessively high, is cut with pneumatic pick；If slope surface is too low,
With the embedding benefit of mortar flag stone；If meeting compared with large fracture, grouting or jointing processing can be used, so that side slope surface is straight.
Step 2 S200 ' carries out side slope anchor hole construction.
(1) measuring and the label of side slope anchor hole are carried out in slope surface, side slope anchor hole deviations are not more than 20mm, hole location
The degree of skewness at inclination angle is not more than 5%；
(2) mark using drilling machine on side slope surface is drilled with side slope anchor hole, and the promotion of drilling machine three-legged support is arrived
Stablize on smooth bamboo springboard, fixed drilling machine, and stringent conscientiously progress seat in the plane adjustment be accurately installed according to the hole location of slope surface measuring,
Ensure that anchor hole drill hole of drilling machine inclination angle and direction meet design and code requirement, drilling depth is more than that Soil Anchor Design length should be not less than
0.5m。
(3) after the completion of drilling, water, dross and the dust in high pressure air pressure gun cleaning hole and at aperture, borehole cleaning sequence can be used
It is from top to bottom；After the completion of borehole cleaning, aperture should temporarily be blocked, broken shoulder sundries is avoided to enter in side slope anchor hole.
Step 3 S300 ' is implanted into anchor pole 44 in side slope anchor hole.
Anchor pole 44 does locating support using HRB335 grades of 6 reinforcing bars of spiral Φ and is made.First with probe inspection before rockbolt installation
Whether intact side slope anchor hole is looked into, if thering is collapse hole, chip off-falling to clear up or handle in advance；Anchor pole 44 must not rotate when entering hole, and anchor pole 44 enters
It is firmly uniform when hole.
Slip casting in step 4 S400 ', Xiang Bianpo anchor hole.
Using grout material, the slurry that material is cement mortar is poured in Xiang Bianpo anchor hole；Cement mortar slurry uses
P.0.42.5R cement, the ratio of mud are 0.45~0.5, and the intensity of cement mortar slurry is greater than 25MPa.
Step 5 S500 ', hoisting prefabricated reinforced concrete anchor pier.
Leveling is carried out to slope surface backing, so that Rectangular Concrete anchor pier 1 and the slope surface of side slope 8 can fit closely；
The prefabricated reinforced concrete anchor pier 1 that precasting yard is made is transported to side slope scene with flat car, successively handling is spelled
The position that several prefabricated reinforced concrete anchor piers 1 are set to 8 slope surface of side slope is filled, in each prefabricated reinforced concrete anchor pier 1
41 bottom of groove is placed with steel backing plate 42, and anchor pole 44 sequentially passes through the anchor hole 43 on the groove 41 and backing plate 42；Several
The crossbeam 21 of the armored concrete anchor pier unit 2 is connected with each other or is aligned with crossbeam 21, stringer 22 with stringer 22, is formed multiple
The prefabricated reinforced concrete anchor pier 1 that " well " font is put together.
Step 6 S600 ' carries out anchor head to block protection processing.
Anchor pole 44 positioned at 42 top of backing plate is locked using nut 6, and nut 6 is tightened.At 41 position of groove, filling C25 is mixed
Solidifying grave stifled 7, to prevent backing plate 42, leakage anchor pole 44 and nut 6 from getting rusty；Can also be used steel cage protect or preservation rouge into
Row protection.
By above construction procedure the S100 '-S600 ', obtain arrangement be mounted on side slope several are precast reinforced mixed
The edge slope structure of solidifying soil anchor pier has and shortens construction period, simplify construction procedure, save construction cost, improve protection quality
The characteristics of.
In order to further increase the tensile strength of concrete anchor pier, may also include step 7 S700 ', the tensioning of anchor pole 44 and
Locking.
According to the tensioning fixation technique that live pulling test determines, classification applies tensile load, and every grade of tensile load is stablized
Carry out the application of next stage tensile load again afterwards；If after completing 48 hours stress relaxation occurs for 44 tensioning of anchor pole, compensate
Tensioning.
It further, further include step 8 S800 ', side slope anchor hole carries out secondary grouting.
It is secondary for the progress of the grout material of cement system or synthetic resin system using material after 44 tension test of anchor pole is qualified
Injecting treatment.
In conclusion the present invention provides a kind of for the prefabricated reinforced concrete anchor pier of slope reinforcement and its production and applies
Work method.The prefabricated reinforced concrete anchor pier includes with the armored concrete anchor pier list for intersecting criss-cross crossbeam and stringer
Member includes, positioned at the concrete rib of the armored concrete anchor pier unit surrounding and positioned at the anchor head of crossbeam and stringer infall
Portion；Waist muscle is provided in the crossbeam and stringer.Prefabricated reinforced concrete anchor pier of the invention is non-prestressed using specific structure
Armored concrete lattice girder can improve the section performance of beam, bear bigger anchor force, solve the cast-in-place reinforced concrete of tradition
Native lattice girder may be caused by drawing crack what stiffness of structural member declined to lack when encountering the larger situation of anchorage cable anchoring power in span centre position
It falls into；Prefabricated armored concrete anchor pier can also simplify manufacture craft, facilitate installation and be easy to adjust when installing, and shorten construction
Period, and saved construction cost.
It should be understood that above-mentioned specific embodiment of the invention is used only for exemplary illustration or explains of the invention
Principle, but not to limit the present invention.Therefore, that is done without departing from the spirit and scope of the present invention is any
Modification, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.In addition, appended claims purport of the present invention
Covering the whole variations fallen into attached claim scope and boundary or this range and the equivalent form on boundary and is repairing
Change example.
Claims (10)
1. a kind of prefabricated reinforced concrete anchor pier for slope reinforcement, which is characterized in that the prefabricated reinforced concrete anchor pier
For non-prestressed component, comprising: armored concrete anchor pier unit, concrete rib and anchor head；
The armored concrete anchor pier unit includes prefabricated intersecting criss-cross crossbeam and stringer；
The concrete rib is located at the armored concrete anchor pier unit surrounding；
The anchor head is located at the infall of the crossbeam and stringer, for being inserted into anchor pole；
Wherein, reinforcing bar is provided in the crossbeam and stringer.
2. the prefabricated reinforced concrete anchor pier according to claim 1 for slope reinforcement, which is characterized in that the coagulation
The height of native rib is lower than the height of the armored concrete anchor pier unit.
3. the prefabricated reinforced concrete anchor pier according to claim 2 for slope reinforcement, which is characterized in that the reinforcing bar
The height of concrete anchor pier unit is 400-600mm；The height of the concrete rib is 200-500mm.
4. the prefabricated reinforced concrete anchor pier according to claim 1 for slope reinforcement, which is characterized in that the crossbeam
It is gradually become smaller from centre to both ends with longitudinal height of stringer.
5. the prefabricated reinforced concrete anchor pier according to claim 1 for slope reinforcement, which is characterized in that the crossbeam
With vertical muscle, stirrup and waist muscle are provided in stringer；
Wherein, four angles of the vertical muscle along the cross section for being disposed longitudinally on the crossbeam and stringer of the crossbeam and stringer
On；The stirrup surrounds the vertical muscle；The waist muscle is arranged in the stirrup close to the crossbeam or stringer lower part and contact
The stirrup.
6. the prefabricated reinforced concrete anchor pier according to claim 1 for slope reinforcement, which is characterized in that the coagulation
Native rib includes Rectangular Concrete rib or round concrete rib；
Latticed reinforcing bar is laid in the Rectangular Concrete rib；Latticed reinforcing bar is provided in the circle concrete rib or is put
Penetrate shape reinforcing bar；
Wherein, the reinforcing bar is at least the HRB335 stirrup of 10mm for HRB400 regular reinforcement, diameter that diameter is at least 20mm
Or HRB400 stirrup.
7. the prefabricated reinforced concrete anchor pier according to claim 1-6 for slope reinforcement, which is characterized in that
The anchor head includes groove, backing plate and anchor hole；
Wherein the groove is set to the top of the crossbeam and stringer infall, and the backing plate is placed in the groove floor
On；The lower part of the backing plate and the infall is provided with the identical anchor hole of diameter, for being inserted into the anchor pole.
8. the production method of the prefabricated reinforced concrete anchor pier according to claim 1-7 for slope reinforcement,
It is characterized by comprising the following steps:
Step 1 processes the mold of the armored concrete anchor pier；
According to the mold for manufacturing and designing the production armored concrete anchor pier；It reserves on mold in crossbeam, stringer intersection recessed
Slot reserves anchor hole duct at the position for penetrating anchor pole；
Step 2, in precasting yard according to design banding steel cage；
Bar types, diameter, size and number are first checked when Steel Reinforcing Bar Material, are calculated cutting length, are then truncated, reinforcing bar is curved
A platform is taken when bent on bender；
Bar spacing line is arranged on pedestal, for controlling cloth muscle size, pretensioning reinforcing bar, then binds crossbeam and vertical
Vertical muscle and stirrup in beam, form the steel reinforcement cage of the armored concrete anchor pier；
Step 3, casting concrete；
Installation mold and it is put into the steel reinforcement cage of the armored concrete anchor pier bound on the fixed base of precasting yard, then
Casting concrete；
Step 4, curing concrete anchor pier；
The armored concrete anchor pier is conserved, concrete anchor pier upper cover is set into cover, is periodically sprinkled water on cover, is sprinkled water
Number is degree with the surface moisture of concrete anchor pier；
Curing time is no less than the predetermined time, the demoulding after concrete reaches design strength and elasticity modulus；
Step 5, pile store the concrete anchor pier；
Armored concrete anchor pier maintenance, which reaches, to be transported to pile area from maintenance area after design strength and elasticity modulus and carries out heap
Code, storage are stand-by.
9. the production method of the prefabricated reinforced concrete anchor pier according to claim 8 for slope reinforcement, feature exist
In, further includes:
Step 6 places the steel backing plate for being equipped with the anchor hole passed through for anchor pole in the groove of the armored concrete anchor pier.
10. a kind of construction method using the described in any item prefabricated reinforced concrete anchor pier reinforcing side slopes of claim 1-7,
It is characterized in that, comprising the following steps:
Step 1, side slope slope surface reinforced before pretreatment；
Step 2 carries out side slope anchor hole construction；
Measuring and the label of side slope anchor hole are carried out in side slope, side slope anchor hole deviations are not more than 20mm, hole location inclination angle
Degree of skewness is not more than 5%；Mark in side slope is drilled with side slope anchor hole, and drilling depth is more than that the difference of rock-bolt length is not less than
0.5m；
Step 3 is implanted into anchor pole in side slope anchor hole；
Step 4, slip casting in Xiang Bianpo anchor hole；
Using grout material, joints cement mortar in Xiang Bianpo anchor hole；
Step 5, hoisting prefabricated reinforced concrete anchor pier；
The successively position that several assembled prefabricated reinforced concrete anchor piers of handling are set to side slope surface, described in adjacent several
The crossbeam of armored concrete anchor pier unit is mutually aligned or connect with crossbeam, stringer and stringer, forms multiple " well " font splits
Made of prefabricated reinforced concrete anchor pier；
Step 6 carries out anchor head to block protection processing；
It is placed with steel backing plate in the bottom portion of groove of each prefabricated reinforced concrete anchor pier unit, anchor pole sequentially passes through the groove
With the anchor hole on backing plate；Anchor pole positioned at backing plate top uses nut check, and C25 is filled at groove position, anchor pole and nut
Concrete blocks, using steel cage protection or preservation rouge；
Step 7, the tensioning and locking of anchor pole；
According to the tensioning fixation technique that live pulling test determines, classification applies tensile load, after every grade of tensile load is stable again
Carry out the application of next stage tensile load；
If after completing the predetermined time stress relaxation occurs for anchor pole tensioning, tensioning is compensated；
Step 8, side slope anchor hole carry out secondary grouting；
After anchor pole tension test is qualified, secondary grouting processing is carried out using cement system or synthetic resin system grout material.
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| CN110792086A (en) * | 2019-11-12 | 2020-02-14 | 深圳市路桥建设集团有限公司 | Hoisting construction method for prefabricated assembled lattice beam |
| CN111926777A (en) * | 2020-08-26 | 2020-11-13 | 河南省中宇农业农村规划设计院有限公司 | Ecological slope protection building block, building block connecting piece, building block embedded part and ecological slope protection |
| CN119392696A (en) * | 2024-12-31 | 2025-02-07 | 福州大学 | A prefabricated slope reaction structure with built-in core tube and its design optimization method |
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Application publication date: 20190730 |