CN208857826U - A kind of precast lattice beam structure of slope reinforcement - Google Patents
A kind of precast lattice beam structure of slope reinforcement Download PDFInfo
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- CN208857826U CN208857826U CN201821507463.7U CN201821507463U CN208857826U CN 208857826 U CN208857826 U CN 208857826U CN 201821507463 U CN201821507463 U CN 201821507463U CN 208857826 U CN208857826 U CN 208857826U
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Abstract
The utility model discloses a kind of precast lattice beam structures of slope reinforcement, comprising: outline border crossbeam and outline border stringer；Outline border crossbeam and the orthogonal connection of outline border stringer head and the tail form the outline border of precast lattice beam structure；Precast lattice beam structure outline border shape is square or rectangle；Outline border side rail inner is connected with inside casing crossbeam, and outline border cross rail inner is connected with inside casing stringer；Inside casing crossbeam is orthogonal with inside casing stringer；Outline border crossbeam and outline border stringer outer side edges are provided with steel hoop；The double-layer double-direction stress main reinforcement for exposing to outline border side is provided within the scope of outline border crossbeam, outline border stringer, inside casing crossbeam and inside casing stringer.In the utility model, prefabricated lattice compact appearance is succinct, produces in batches in PC factory, high-efficient, quality is guaranteed, energy-saving and emission-reduction, reduces environmental pollution；Precast lattice beam is a closing overall structure, and globality is relatively good, facilitates mass production, stacking, carrying and the lifting of prefabricated components, and structural elements crack resistance is good.
Description
Technical field
The utility model relates to geotechnical engineering fields, specifically, in particular to a kind of precast lattice beam of slope reinforcement
Structure.
Background technique
Lattice reinforcement technique is to carry out side using cemented rock, cast-in-situ steel reinforced concrete or precast prestressed concrete lattice
Slope slope protection, and it is subject to a kind of fixed reinforcing side slope technique using anchor pole or anchor cable.Lattice technology is generally and surrounding enviroment
Beautification combines, and using sash slope protection, while planting flowers and plants within sash and can achieve extremely beautiful effect.This technology
It is widely adopted in high gradient slope reinforcing in mountainous area highway, slope protection reaches not only beautiful but also safety good result.
The main function of lattice is the anchor distributed to the residual pushing force of side slope slopes or rock and soil pressure at lattice node
Then bar or anchor cable pass to slope stability stratum by anchor cable, to make side slope slopes in the anchor by anchor pole or anchor cable offer
Gu being in stable state under the action of power.It therefore is only a kind of force transferring structure for lattice itself, and the skid resistance reinforced
Mainly provided by the anchor pole or anchor cable of lattice node.
China mainly uses cemented rock and cast-in-situ steel reinforced concrete lattice in slope project Reinforcement at present, much
Lag behind the Japan and European and American developed countries of construction industry prosperity.Cemented rock is general suitable since the sliding resistance that it is provided is smaller
Protection against erosion for the lesser short gentle side slope of scale is administered；Cast-in-situ steel reinforced concrete lattice is due to that can provide biggish antiskid
Resistance, globality is preferably and can be with the side slope of prestress anchorage cable cooperative bearing therefore various types different height at home well
Be widely applied in reinforcing, especially based on excavating and fill cut slope and embankment slope reinforcement administer in apply
Extensively.
It has the disadvantage in that and 1. needs in view of current domestic common cemented rock lattice and cast-in-situ steel reinforced concrete lattice
The maintenance of long period is unfavorable for the stable early of side slope, it is impossible to be used in insuring highway' slope engineering；2. site operation needs more
Template and construction personnel are unfavorable for realizing the building industrialization of Fast Installation；3. construction site condition is severe under normal circumstances,
Template is set on slope, disturbing concrete is easy to appear template downslide, shift and concrete spillage influences supporting construction quality
Deleterious situation happens occasionally；4. currently used lattice is typically in the form of after the completion of entire slope surface is excavated or filled just in slope surface
Upper setting generally with Slope excavation or cannot fill staged and layered and gradually construct, and safety problem is significant when slope reinforcement is constructed；⑤
The side slope disturbance of vibrating of on-site concrete is larger, or even can induce the generation of the geological disasters such as extensive landslide.
Utility model content
In order to solve problems in the prior art, the utility model embodiment provides a kind of precast lattice beam of slope reinforcement
Structure and assembly monolithic construction method.The technical solution is as follows:
On the one hand, a kind of precast lattice beam structure of slope reinforcement is provided, comprising: outline border crossbeam and outline border stringer；Institute
It states outline border crossbeam and the orthogonal connection of outline border stringer head and the tail forms precast lattice beam structure outline border；The precast lattice beam structure
Outline border shape is square or rectangle；
The outline border side rail inner is connected with inside casing crossbeam, and the outline border cross rail inner is connected with inside casing stringer；In described
Frame crossbeam is orthogonal with the inside casing stringer；
The outline border crossbeam and the outline border stringer outer side edges are provided with steel hoop；The outline border crossbeam, outline border stringer,
Double-layer double-direction stress main reinforcement is provided within the scope of inside casing crossbeam and inside casing stringer.
Further, the inside casing crossbeam and inside casing stringer intersection are provided centrally with for anchor outside prestress anchorage cable
The reserved anchor hole that section passes through.
Further, the steel hoop is between opposite side outline border beam sides interlaced arrangement, the exposed steel hoop in same side
Away from about 20cm, exposing to outline border beam sides length is about 15cm.
Further, the double-layer double-direction stress main reinforcement exposes to outline border crossbeam and outline border crossbeam side, and protruded length is about
For 10cm, reinforcing bar when so as to site operation between adjacent two precast lattice beam side is connected, the exposed double-layer double-direction of adjacent side
The connection type of stress main reinforcement can be using welding or threaded sleeve mechanical connection.
Further, the outline border crossbeam and outline border stringer be uniformly arranged within the scope of precast lattice beam structural thickness,
The lower two exposed stress main reinforcements to outline border beam sides certain length are uniformly arranged within the scope of the inside casing crossbeam and inside casing stringer
The upper and lower four exposed stress main reinforcements to outline border beam sides certain length.
Technical solution provided by the embodiment of the utility model has the benefit that
A kind of precast lattice beam of slope reinforcement provided by the utility model has the advantage that outside the 1. prefabricated lattice
Shape compact is produced in batches in PC factory, high-efficient, quality is guaranteed, energy-saving and emission-reduction, reduces environmental pollution；2. described
Precast lattice beam is a closing overall structure, and globality is relatively good, facilitates mass production, stacking, carrying and the lifting of component,
Structural elements crack resistance is good；3. construction site installation procedure is simply convenient for operating, the prefabricated components can be immediately after being installed in place
To prestressed anchor cable stretching, locking, it is stable early to be conducive to side slope；4. the dead load gentlier cooperates small-sized allocation and transportation equipment can
To reduce labour, cross-operation is convenient, accelerates installation progress, and construction is not affected by the weather substantially；5. scene is saved a large amount of
Construction formwork and labour, installation accuracy height, construction quality are guaranteed；6. scene is by assembling whole quick-assembling, entire side
Armored concrete beam in length and breadth is poured after the completion of all splicing prefabricated components in slope (or one segmentation side slope) range afterwards again, in structure
Securely and reliably, cooperation prestress anchorage cable can be suitably used for various types, the execavated rockmass of various scales and different height or embankment side
The Reinforcement on slope, applicability is extensive, especially suitable for there is the rescue and relief work Reinforcement Works of Rock Slopes of urgent requirement to the time；7. pre-
Before the locking of stress anchorage cable stretching, in flexible connection or not-connected status between adjacent lattice girder, therefore adapt to a certain degree
Slope surface irregularity degree；8. grass planting and plantation small shrub are conducive to mutually assist with surrounding enviroment in the lattice girder area lattice after completion
It adjusts, is conducive to environmental protection.
Therefore the utility model can be in various types, the execavated rockmass of various scales and different height and embankment side slope work
Energy consumption is reduced in journey Reinforcement, environmental pollution is reduced, saves extensive fund, shortens the construction period, especially suitable for having tightly to the time
Compel desired rescue and relief work Reinforcement Works of Rock Slopes, is a kind of precast lattice beam structure being worthy of popularization and assembly integral construction
Method.
Detailed description of the invention
It, below will be to required in embodiment description in order to illustrate more clearly of the technical scheme in the embodiment of the utility model
Attached drawing to be used is briefly described, it should be apparent that, the accompanying drawings in the following description is only some realities of the utility model
Example is applied, it for those of ordinary skill in the art, without creative efforts, can also be according to these attached drawings
Obtain other attached drawings.
Fig. 1 is a kind of precast lattice beam structure three-view diagram of slope reinforcement of the utility model embodiment one；
Fig. 2 is adjacent two precast lattice beam vertically and horizontally connection figure (plane) of the utility model embodiment two；
Fig. 3 is adjacent two precast lattice beam connection figure (vertical view) in length and breadth of the utility model embodiment two；
Fig. 4 is the front elevation view after the completion of a segmentation lattice retaining wall of the utility model embodiment two.
Specific embodiment
It is practical new to this below in conjunction with attached drawing to keep the purpose of this utility model, technical solution and advantage clearer
Type embodiment is described in further detail.
Embodiment one
The utility model provides a kind of precast lattice beam structure of slope reinforcement, referring to attached drawing 1, comprising: outline border crossbeam 1
With outline border stringer 2；The outline border crossbeam 1 and the orthogonal connection of 2 head and the tail of the outline border stringer form precast lattice beam structure outline border；Institute
Precast lattice beam structure outline border shape is stated to be square or rectangle；
It is connected with inside casing crossbeam 3 on the inside of the outline border stringer 2, is connected with inside casing stringer 4 on the inside of the outline border crossbeam 1；Institute
It is orthogonal with the inside casing stringer 4 to state inside casing crossbeam 3；
The outline border crossbeam 1 and 2 outer side edges of outline border stringer are provided with steel hoop 7；The outline border crossbeam 1, outline border
Double-layer double-direction stress main reinforcement 6 is provided in 4 range of stringer 2, inside casing crossbeam 3 and inside casing stringer.
In the present embodiment, a kind of precast lattice beam structure plate face of slope reinforcement of the utility model is in " matrix pattern ", such as attached
Shown in Fig. 1, the precast lattice beam structure is armored concrete hollow out solid framework beam element.
Specifically, the precast lattice beam structure can be equal thickness frame beam element or non-equal thickness frame beam element,
Non- equal thickness can thicken outer grid beam in the upper and lower one side of the board of beam element or two sides or thicken interior grid beam.
Specifically, the prefabricated lattice stress main reinforcement should use HRB400, HRB500, HRBF400, HRBF500 reinforcing bar.
Specifically, strength grade of concrete used in the precast lattice beam structure preferably uses C40.
Specifically, the precast lattice beam structure outline border shape can be square or rectangle, long edge size should be controlled
System is in 2m or so；
Further, the inside casing crossbeam 3 and 4 intersection of inside casing stringer are provided centrally with outside for prestress anchorage cable
The reserved anchor hole 5 that anchor section passes through.
Specifically, reserve anchor hole tilt angle should according to the practical inclination angle for performing prestress anchorage cable in specific side slope scene come
It determines, the diameter of reserved anchor hole 5 is advisable with not interfering outside prestress anchorage cable anchor section to pass through, and general control is in 50mm or so.It can also
Reserved anchor hole 5 is made into big " horn mouth " shape of the small lower face of a upper face to adapt to different prestressing force when being formed production
The needs of dip angle of anchor cable.When specific a certain side slope does not need setting prestress anchorage cable, the precast lattice beam can be not provided with institute
State reserved anchor hole 5.
Further, the steel hoop 7 is between opposite side outline border beam sides interlaced arrangement, the exposed steel hoop in same side
Away from about 20cm, exposing to outline border beam sides length is about 15cm.
Further, the double-layer double-direction stress main reinforcement 6 exposes to 2 side of outline border crossbeam 1 and outline border crossbeam, protruded length
About 10cm, reinforcing bar connection when so as to site operation between adjacent two precast lattice beam side, adjacent side are exposed double-deck double
It can be using welding or threaded sleeve mechanical connection to the connection type of stress main reinforcement 6.
Further, the width of the precast lattice beam structure outline border crossbeam 1 and outline border stringer 2 is controlled in 150mm or so,
The control of the width of inside casing crossbeam 3 and inside casing stringer 4 is in 400mm or so, and in 400mm or so, sectional dimension can also root for height control
It is determined according to specific side slope force analysis.
Further, the outline border crossbeam 1 and outline border stringer 2 are uniformly arranged within the scope of precast lattice beam structural thickness
The upper and lower two exposed stress main reinforcements 6 to outline border beam sides certain length, in 4 range of the inside casing crossbeam 3 and inside casing stringer
Upper and lower four of even setting exposes to the stress main reinforcement 6 of outline border beam sides certain length.
Embodiment two
On the other hand, the precast lattice beam structure and assembly monolithic construction method of a kind of slope reinforcement, this implementation are provided
In example, it is discussed in detail by taking execavated rockmass as an example in a kind of the precast lattice beam structure and assembly monolithic construction method of slope reinforcement
Assemble integral construction process.Should be arranged according to soil-baffling structure before constructing at the scene expansion joints or settlement joints etc. need will be whole
A side slope is divided into several segmentations in advance, then according to the staged and layered excavation supporting delimited in advance.The present embodiment only introduces one
The assembly integral construction process of a segmentation side slope precast lattice beam, other segmentations of entire side slope can be completed in the cycle process repeatedly
The installation process of lattice girder.In a segmentation lattice girder assembly work progress, precast lattice beam is layered with ground digging process
Assemble integral installation.
Specifically, a side slope staged and layered precast lattice beam specifically assembles monolithic construction method steps are as follows:
Step 1: excavation slope first layer Rock And Soil simultaneously modifies slope surface.Excavate a layering Rock And Soil downwards from top of the slope
To certain depth, it is precast lattice beam that the primary side slope surface length formed of excavating, which should be slightly bigger than precast lattice beam longitudinal size,
Installation provides necessary space, and modifies side slope surface in time.Precast lattice beam can be arranged directly on finishing after it is opposed flattened
Side slope surface on, it may be necessary in slope surface make a reservation in length and breadth the downward grooving of the vertical slope surface in beam position precast lattice beam is arranged
In in the slot of slope surface certain depth；
Step 2: prestress anchorage cable installation.According to the predetermined hole location of construction drawing, predetermined angular drilling machine dry drilling, high pressure
8 slip casting of prestressed anchor cable waits for by force after air pressure gun borehole cleaning, and anchor rope grouting waits for that strong period pays attention to arbitrarily touching prestress anchorage cable
Outer anchor section；
Step 3: first layer precast lattice beam Linking with foundation.Several precast lattice beams of same layer are hung with lifting appliance
To predetermined position, the adjacent two prefabricated components longitudinal side of same layer reserves certain space, and width depends on the button of steel hoop 7
The length and connection type for closing length and the exposed stress main reinforcement 6 in outline border stringer side, the contiguous prefabricated component outline border of same layer is indulged
The exposed stress main reinforcement 6 in beam side is attached, and connection type can be mechanically connected using welding or threaded sleeve 9, pays attention to hanging
When precast lattice beam structure riding position should be accurate and the outer anchor section of the prestress anchorage cable 8 performed be passed through in prefabricated components
The reserved anchor hole 5 of frame beam intersection in length and breadth；See attached drawing 2
Step 4: first of prestressed anchor cable stretching and locking.With hydraulic jack classification, gradually tensioning passes through lattice girder
It is locked after the outer anchor section to predetermined value of prestress anchorage cable 8 of the reserved anchor hole 5 in center, and completes of other prestress anchorage cables of same layer
It draws and locks, all precast lattice beams of same layer should substantially remain on same plane after tensioning fixation.Pay attention to phase in step 3
Adjacent precast lattice beam lateral forces main reinforcement connection can be according to easy for construction and safe need with this step prestress anchorage cable tensioning fixation
It adjusts it and successively performs sequence.
Step 5: circulation above-mentioned steps complete the excavation of next layer of slope ground body, slope surface leveling, prestress anchorage cable peace
Dress, precast lattice beam Linking with foundation, prestress anchorage cable the construction procedures such as tensioning fixation until side slope lower part the last layer is prefabricated
One layer of precast lattice beam of side slope lowest part is arranged on the firm basis 12 of leg wire of slope or less for the installment work of lattice girder.
Pay attention to this step precast lattice beam Linking with foundation include the adjacent two prefabricated lattice longitudinal side stress main reinforcement 6 of same layer connection and
The connection of upper and lower two layers of adjacent two precast lattice beams transverse sides stress main reinforcement 6 and upper and lower two layers contiguous prefabricated lattice girder it
Between reserve it is good after pour the space of overlapping crossbeam.See attached drawing 2 and attached drawing 3
Step 6: installing and vertically and horizontally fasten reinforcing bar 10 in contiguous prefabricated lattice girder reserved space, fastens reinforcing bar and outline border is vertical
Overlapping beam 11 in length and breadth are poured after crossbeam side open steel hoop 7 is bound after the completion of disturbing concrete, and are completed outside prestress anchorage cable
The sealing off and covering anchorage 13 of anchor section.See attached drawing 3 and attached drawing 4
It, can be with appropriate adjustment sequencing, when upper based on above-mentioned steps of considering easy for construction and safe in the present embodiment
After layer precast lattice beam is mounted on slope surface application prestressd anchor cable, the prefabricated lattice in upper layer should be carried out when slope ground body excavates below
The interim stabilization measure of structure beam, upper layer precast lattice beam slides downwards along slope surface when preventing and treating lower part vacant state.
Specifically, the utility model provides precast lattice beam structure and the assembly integral construction side of a kind of slope reinforcement
Method.Then this method by being in a kind of prefabricated matrix pattern armored concrete lattice girder of PC component factory with the precast lattice beam
Substantially with excavating or filling segmentation, successively safety is assembled at slope construction scene for assembled rigid unit, both can apply to adding for execavated rockmass
Gu administering the Reinforcement that can apply to embankment side slope again；It can be assembled downwards by top of the slope but also assembled upwards by leg wire of slope；
Precast lattice beam installation splicing is poured afterwards in place smash contiguous prefabricated lattice between reserved space concrete formed after pour overlapping beam in length and breadth.
Therefore the utility model is advantageously implemented precast lattice beam slope reinforcement and fast and safely assembles integral construction, is that one kind is worthy to be popularized
Precast lattice beam structure and assembly monolithic construction method.
The above is only the preferred embodiments of the utility model, are not intended to limit the utility model, all in the utility model
Spirit and principle within, any modification, equivalent replacement, improvement and so on should be included in the protection model of the utility model
Within enclosing.
Claims (5)
1. a kind of precast lattice beam structure of slope reinforcement characterized by comprising outline border crossbeam and outline border stringer；It is described outer
Frame crossbeam and the orthogonal connection of outline border stringer head and the tail form precast lattice beam structure outline border；The precast lattice beam structure outline border
Shape is square or rectangle；
The outline border side rail inner is connected with inside casing crossbeam, and the outline border cross rail inner is connected with inside casing stringer；The inside casing is horizontal
Beam is orthogonal with the inside casing stringer；
The outline border crossbeam and the outline border stringer outer side edges are provided with steel hoop；The outline border crossbeam, outline border stringer, inside casing
Double-layer double-direction stress main reinforcement is provided within the scope of crossbeam and inside casing stringer.
2. the precast lattice beam structure of slope reinforcement as described in claim 1, which is characterized in that the inside casing crossbeam and described
Inside casing stringer intersection is provided centrally with the reserved anchor hole passed through for anchor section outside prestress anchorage cable.
3. the precast lattice beam structure of slope reinforcement as claimed in claim 2, which is characterized in that the steel hoop is in opposite side
Outline border beam sides interlaced arrangement, the exposed steel hoop in same side are spaced about 20cm, expose to outline border beam sides length and are about
15cm。
4. the precast lattice beam structure of slope reinforcement as claimed in claim 3, which is characterized in that the double-layer double-direction is advocated
Muscle exposes to outline border crossbeam and outline border crossbeam side, and protruded length is about 10cm, adjacent two prefabricated lattice when so as to site operation
The connection type of reinforcing bar connection between beam side, the exposed double-layer double-direction stress main reinforcement of adjacent side can be using welding or spiral shell
Line casing mechanical connection.
5. the precast lattice beam structure of slope reinforcement as claimed in claim 4, which is characterized in that the outline border crossbeam and outline border
Stringer is uniformly arranged the upper and lower two exposed stress to outline border beam sides certain length within the scope of precast lattice beam structural thickness
Main reinforcement is uniformly arranged upper and lower four within the scope of the inside casing crossbeam and inside casing stringer and exposes to outline border beam sides certain length
Stress main reinforcement.
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| CN201821507463.7U CN208857826U (en) | 2018-09-14 | 2018-09-14 | A kind of precast lattice beam structure of slope reinforcement |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109024632A (en) * | 2018-09-14 | 2018-12-18 | 南华大学 | A kind of the precast lattice beam structure and assembly monolithic construction method of slope reinforcement |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109024632A (en) * | 2018-09-14 | 2018-12-18 | 南华大学 | A kind of the precast lattice beam structure and assembly monolithic construction method of slope reinforcement |
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