CN209412681U - Trestle work structure - Google Patents
Trestle work structure Download PDFInfo
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- CN209412681U CN209412681U CN201821833958.9U CN201821833958U CN209412681U CN 209412681 U CN209412681 U CN 209412681U CN 201821833958 U CN201821833958 U CN 201821833958U CN 209412681 U CN209412681 U CN 209412681U
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Abstract
The utility model discloses a kind of trestle work structures, including support beam frame, it is equipped with supporting surface plate on support beam frame, the multiple groups pier stud stand for supporting it jointly is supported with below support beam frame, the stand of multiple groups pier stud is successively spaced laying along the length direction of support beam frame.The Conveyor belt on the basis as trestle support is supported with below each pier stud stand, Conveyor belt includes by site operation and being embedded in the trestle pile foundations of more in subterranean strata miniature ground piles buildings, and it is supported on the bearing base station in trestle pile foundation, pier stud stand is supported on the bearing base station being correspondingly arranged.In the trestle work structure of the utility model, it can be according to practice of construction demand, it adjusts the height of pier stud stand and then adjusts the height of trestle, it can also be by adjusting the laying mode of the more miniature ground piles of supporting width and/or adjustment of pier stud stand and then the supporting width of adjustment trestle pile foundation, it adjusts the length of trestle pile foundation and then meets different stress and deformation requirements, it is applied widely.
Description
Technical field
The utility model relates to Traffic Engineering Construction fields, particularly, are related to a kind of trestle work structure.
Background technique
In traffic engineering construction process, the especially immediately construction of existing road engineering is needing to guarantee existing road just
Often operation and safety, building temporary trestle bridge is one of most common method.Existing trestle has the following problems: trestle work structure is multiple
It is miscellaneous, cost is high, construction efficiency is low and the scope of application is small.Under conditions of short time limit, construction site are limited, how to solve interim
Trestle is quickly, easy, to build in high quality be problem extremely important in Traffic Engineering Construction.In addition, in existing construction, trestle
Stiffening basic ground mode include expanding foundation stabilization and grouting and reinforcing ground.When Extended chemotherapy is reinforced, Extended chemotherapy is over the ground
Base requirement for bearing capacity is higher, and Extended chemotherapy need to be excavated on a large scale, is not suitable for constructing at precipitous position, thereby increases and it is possible to cause to collapse
The subsequent adverse effect such as side, soil erosion；When grouting and reinforcing ground, slip casting effect is difficult to check and verify, and slip casting effect cannot
It is effectively ensured.
Utility model content
The utility model provides a kind of trestle work structure, and to solve, existing trestle construction efficiency is low, the scope of application is small and stack
The form of construction work of bridge is not suitable for the technical issues of limited condition in short time limit and construction site.
The technical solution adopted in the utility model is as follows:
A kind of trestle work structure, comprising: along the support beam frame of the extending direction erection of trestle, be equipped on support beam frame along it
Length direction extends, the support panel for supporting people or vehicle, is supported with for supporting its jointly below support beam frame
Multiple groups pier stud stand, the stand of multiple groups pier stud are successively spaced laying along the length direction of support beam frame；The lower section branch of each pier stud stand
The Conveyor belt on the basis as trestle support is held, Conveyor belt includes by site operation and being embedded in more in subterranean strata
The trestle pile foundation of miniature ground pile building, and the bearing base station being supported in trestle pile foundation, pier stud stand, which is supported on, to be correspondingly arranged
It supports on base station.
Further, support beam frame is the hollow structure assembled along trestle extending direction by fashioned iron；Pier stud stand is
By the assembled hollow cylindrical structure of the fashioned iron of the steel pipe and joint steel pipe laid vertically；Supporting base station is to be constructed by reinforcing bar
The mesa-shaped structure of steel mesh and the concrete formation being cast on steel mesh；Miniature ground pile is by the steel pipe laid vertically, laying
In the stake shape structure of the steel reinforcement cage in steel pipe and the concrete formation being cast on steel pipe and steel reinforcement cage.
Further, more miniature ground piles for constructing trestle pile foundation are vertically arranged and in regular arrays.
Further, the pile foundation hole for installing each miniature ground pile is drilled in the bearing stratum for supporting Conveyor belt；
Miniature ground pile include be vertically arranged in pile foundation hole and the hollow pipe of top end opening, be vertically arranged in hollow pipe steel reinforcement cage,
It is filled in the cement mortar between hollow pipe and pile foundation hole and in hollow pipe.
Further, multiple slurry leakage holes are offered on the side wall of hollow pipe；Miniature ground pile further include be filled in slurry leakage hole,
And connect the concrete connecting rod of the cement mortar inside and outside hollow pipe.
Further, the outer diameter of hollow pipe is less than the internal diameter of pile foundation hole；The outer diameter of steel reinforcement cage is less than the internal diameter of hollow pipe.
Further, bearing base station includes reinforcement bar support net and pours the concrete online in reinforcement bar support；Reinforcement bar support net includes
The longitudinal reinforcement laid along trestle length direction, transverse steel, connection longitudinal reinforcement, the lateral steel laid along trestle width direction
The connection reinforcing bar of muscle, longitudinal reinforcement and transverse steel.
Further, pier stud stand includes more pier studs being vertically arranged, and is connected between adjacent pier stud for enhancing
The multiple groups bridging of pier stud stand supporting stabilizer；Multiple groups bridging is successively spaced laying along the short transverse of pier stud.
Further, support beam frame includes the sub-truss laid along the length direction of trestle, along the length of sub-truss
Direction be successively spaced more proppings being layed on sub-truss, along sub-truss width direction be successively spaced be layed in it is more
More vertical strutbeams on root propping are successively spaced along the width direction of sub-truss and are layed in the more pads on pier stud stand top
Beam；Support panel is layed on more vertical strutbeams；Sub-truss is supported on more bearing beams.
Further, support panel includes the plurality of steel plates that laying is successively spaced along the length direction of support beam frame；It is adjacent
The connection panel being respectively connected with the two is connected between two blocks of steel plates.
The utility model has the following beneficial effects:
Multiple groups pier stud stand, the lower section of each pier stud stand are supported in trestle work structure of the invention, below support beam frame
It is supported with Conveyor belt, and Conveyor belt includes the trestle pile foundation constructed by more miniature ground piles and is supported in trestle pile foundation
Base station is supported, so as to the height of pier stud stand be adjusted and then adjust the height of trestle, can also pass through according to practice of construction demand
The bearing for adjusting the supporting width of pier stud stand and/or adjusting the laying mode and then adjustment trestle pile foundation of more miniature ground piles is wide
Degree adjusts the length of trestle pile foundation and then meets different stress and deformation requirements, applied widely；Pass through compared to the prior art
The mode of Extended chemotherapy consolidated subsoil or grouting and reinforcing ground in trestle work structure of the invention, passes through the stand of multiple groups pier stud first
Common bearing support beam frame, then supports one group of Conveyor belt below each pier stud stand, and every group of Conveyor belt includes scene
Moulding by casting and more miniature ground piles being embedded in subterranean strata, small-sized machine construction can be used in miniature ground pile, thus construction party
Just, speed of application is fast, and miniature ground pile passes to upper support base station stress outside the solid rock stratum in lower part, cast-in-place shaping
Miniature ground pile can also the soil body to stake week or fragmented rock consolidate, increase the bearing capacity of Conveyor belt, and except bearing
Outside base station, part is excavated without increasing, so that effect on environment is small.
Other than objects, features and advantages described above, there are also other purposes, feature and excellent for the utility model
Point.Below with reference to figure, the utility model is described in further detail.
Detailed description of the invention
The attached drawing constituted part of this application is used to provide a further understanding of the present invention, the utility model
Illustrative embodiments and their description are not constituteed improper limits to the present invention for explaining the utility model.In attached drawing
In:
Fig. 1 is the diagrammatic cross-section of the trestle work structure of the preferred embodiment in the utility model；
Fig. 2 is the enlarged structure schematic diagram of Conveyor belt in Fig. 1；
Fig. 3 is the plan view of trestle pile foundation in Fig. 1；
Fig. 4 is the schematic cross section of miniature ground pile in Fig. 1；
Fig. 5 is the structural schematic diagram of hollow pipe in Fig. 1.
Marginal data
10, support beam frame；11, sub-truss；12, propping；13, strutbeam is indulged；14, bearing beam；20, panel is supported；30, pier
Column stand；31, pier stud；32, bridging；40, Conveyor belt；41, miniature ground pile；411, hollow pipe；4110, slurry leakage hole；412,
Steel reinforcement cage；413, cement mortar；414, concrete connecting rod；42, base station is supported；421, reinforcement bar support net；422, concrete；50, stake
Datum hole.
Specific embodiment
The embodiments of the present invention are described in detail below in conjunction with attached drawing, but the utility model can be by right
It is required that the multitude of different ways for limiting and covering is implemented.
Referring to Fig.1, the preferred embodiment of the present invention provides a kind of trestle work structure, comprising: along the extending direction frame of trestle
If support beam frame 10, be equipped on support beam frame 10 extend along its length, the support panel for supporting people or vehicle
20, the lower section of support beam frame 10 is supported with the multiple groups pier stud stand 30 for supporting it jointly, and the stand 30 of multiple groups pier stud is along support
The length direction of roof beam structure 10 is successively spaced laying.The lower section of each pier stud stand 30 is supported with the trestle on the basis as trestle support
Basis 40, Conveyor belt 40 include by site operation and being embedded in the trestle stake that more in subterranean strata miniature ground piles 41 construct
Base, and the bearing base station 42 being supported in trestle pile foundation, pier stud stand 30 are supported on the bearing base station 42 being correspondingly arranged.
In trestle work structure of the invention, the lower section of support beam frame 10 is supported with multiple groups pier stud stand 30, each pier stud stand 30
Lower section be supported with Conveyor belt 40, and Conveyor belt 40 includes the trestle pile foundation constructed by more miniature ground piles 41 and is supported on
Bearing base station 42 in trestle pile foundation, so as to adjust the height of pier stud stand and then adjust trestle according to practice of construction demand
Height, can also by adjusting pier stud stand supporting width and/or adjust more miniature ground piles laying mode so that adjust
The supporting width of trestle pile foundation adjusts the length of trestle pile foundation and then meets different stress and deformation requirements, applied widely；Phase
Than in the prior art by way of Extended chemotherapy consolidated subsoil or grouting and reinforcing ground, in trestle work structure of the invention, first
Support beam frame 10 is supported jointly by multiple groups pier stud stand 30, and one group of Conveyor belt is then supported below each pier stud stand 30
40, and every group of Conveyor belt 40 includes cast-in-place shaping and is embedded in more in subterranean strata miniature ground piles 41, miniature ground pile
41 can be used small-sized machine construction, thus it is easy for construction, speed of application is fast, miniature ground pile 41 by 42 stress of upper support base station pass
Pass outside the solid rock stratum in lower part, the miniature ground pile 41 of cast-in-place shaping can also the soil body to stake week or fragmented rock carry out
Consolidation increases the bearing capacity of Conveyor belt 40, and in addition to supporting base station 42, part is excavated without increasing, thus to environment shadow
Sound is small.
Optionally, miniature 41 cast-in-place shaping of ground pile directly pours in trestle pile foundation after trestle pile foundation moulding by casting
Injection forming supports base station 42, and both trestle pile foundation and bearing base station 42 are spliced by pouring type；Pier stud stand 30 passes through pre-buried
Built-in fitting and bearing base station 42 in bearing base station 42 splice；Support beam frame 10 welds phase by connecting plate and pier stud stand 30
Even；Support panel 20 is layed on support beam frame 10 and is connected by welding manner with support beam frame 10.To stack of the invention
Bridge structure is prefabricated and splicing structure, not only saves material, and it is convenient to construct, and whole construction operations can be assembled at the scene, be poured into
Type, to greatly reduce labour, applying in the high engineering of complex geological condition and construction period has apparent advantage,
The range of engineer application has also been enlarged simultaneously, economic benefit, construction efficiency and application value are significant, in addition, trestle work structure is
Prefabricated and splicing structure, structural bearing performance is strong, overall stability is good.
Specifically, as shown in Figure 1, support beam frame 10 is the hollow cylindrical knot assembled along trestle extending direction by fashioned iron
Structure；Pier stud stand 30 is the hollow cylindrical structure assembled by the fashioned iron of the steel pipe and joint steel pipe laid vertically；Support base
Platform 42 is the mesa-shaped structure of the steel mesh constructed by reinforcing bar He the concrete formation being cast on steel mesh；Miniature ground pile 41 is served as reasons
The stake shape knot of the steel pipe laid vertically, the steel reinforcement cage being laid in steel pipe and the concrete formation being cast on steel pipe and steel reinforcement cage
Structure not only saves material so that trestle work structure is prefabricated and splicing structure, and it is convenient to construct, and whole construction operations can group at the scene
Dress, moulding by casting, so that labour is greatly reduced, it is bright using having in the high engineering of complex geological condition and construction period
Aobvious advantage, while the range of engineer application has also been enlarged, economic benefit, construction efficiency and application value are significant, in addition, stack
Bridge structure is prefabricated and splicing structure, and structural bearing performance is strong, overall stability is good.
Optionally, more miniature ground piles 41 for constructing trestle pile foundation are vertically arranged and in regular arrays.Specifically, as schemed
Shown in 3, more miniature ground piles 41 are laid in trellis.More miniature ground piles 41 are in regular array, convenient for uniform to bearing base station 42
Support, and then enhance the stability of strutting system of Conveyor belt entirety, also make every miniature 41 uniform force of ground pile, force-bearing situation phase
Together, the stability of enhancing trestle pile foundation bearing；In addition, more miniature ground piles 41 are in regular array, it can also be according to practice of construction need
The supporting width for facilitating adjustment trestle pile foundation, meets construction requirement.
Optionally, it is drilled in the bearing stratum of Conveyor belt 40 for installing each miniature ground pile as shown in figure 4, being used to support
41 pile foundation hole 50.Miniature ground pile 41 includes being vertically arranged in pile foundation hole 50 and the hollow pipe 411 of top end opening, being vertically arranged
Steel reinforcement cage 412 in hollow pipe 411 is filled in cement mortar between hollow pipe 411 and pile foundation hole 50 and in hollow pipe 411
413.Since miniature ground pile 41 includes hollow pipe 411 and steel reinforcement cage 412, so that 41 bearing strength of miniature ground pile is high, anti-shearing energy
Power is strong；Cement mortar 413 is filled between hollow pipe 411 and pile foundation hole 50 and in hollow pipe 411 again, to further enhance micro-
The bearing strength and anti-shear ability of type ground pile 41, at the same also enhance the bonding strength between miniature ground pile 41 and surrounding formation and
Connective stability, and then further increase the stability that trestle pile foundation integrally supports.
Preferably, as shown in figure 4, offering multiple slurry leakage holes 4110 on the side wall of hollow pipe 411.Miniature ground pile 41 also wraps
Include the concrete connecting rod 414 for being filled in slurry leakage hole 4110 and connecting the cement mortar 413 inside and outside hollow pipe 411.Pass through
Slurry leakage hole 4110 is opened up on hollow pipe 411, consequently facilitating the concrete connecting rod 414 being filled in slurry leakage hole 4110 connect it is hollow
Cement mortar 413 inside and outside pipe 411, and then further improve the bearing strength and anti-shear ability of miniature ground pile 41.
Preferably, as shown in figure 4, the outer diameter of hollow pipe 411 is less than the internal diameter of pile foundation hole 50.The outer diameter of steel reinforcement cage 412 is small
In the internal diameter of hollow pipe 411.Convenient for cement mortar between pile foundation hole 50 and hollow pipe 411, hollow pipe 411 and steel reinforcement cage 412
Between formed, and then further enhance the bearing strength and anti-shear ability of miniature ground pile 41.
When practice of construction, the stake diameter of miniature ground pile 41 chooses 10cm~20cm (preferably 14.6cm) hollow steel pipe, wall thickness 5mm
~10mm, 41 spacing 80cm of miniature ground pile, 41 a length of 6m~20m of miniature ground pile, miniature ground pile 41 can be by equilateral triangle
Or square lays out pile, horizontal layout is as shown in Figure 3.Pile foundation hole 50 is applied using boring method when construction, 50 aperture of pile foundation hole is answered
Greater than 411 aperture of hollow pipe.It is bored on hollow pipe 411 and beats slurry leakage hole 4110,4110 aperture 0.8cm~1.5cm of slurry leakage hole, pitch-row
About 15cm.411 overall length of hollow pipe, which can be divided into not drilling, only starches section, bored grouting section and conehead section, as shown in Figure 5.Hollow pipe 411
Overlapping part uses sleeve overlap welding, and sleeve height is not less than 2 times of hollow pipe diameter, and sleeve wall thickness is not less than thickness of steel pipe,
Perimeter of sleeve welding, welding are answered full.Hollow pipe 411 pay attention to when plugging into check verticality, prevent connector it is curved, folding.
Optionally, as shown in Fig. 2, bearing base station 42 includes reinforced mesh 421 and pours in the coagulation on reinforced mesh 421
Soil 422.Reinforced mesh 421 includes the longitudinal reinforcement laid along trestle length direction, the lateral steel laid along trestle width direction
Muscle, the connection reinforcing bar for connecting longitudinal reinforcement, transverse steel, longitudinal reinforcement and transverse steel.Reinforcing bar is laid in bearing base station 42
Mesh sheet 421, so as to enhance bearing base station 42 whole bearing strength and rigidity.
Optionally, as shown in Figure 1, pier stud stand 30 includes more pier studs 31 being vertically arranged, and it is connected to adjacent pier stud
For enhancing the multiple groups bridging 32 of 30 supporting stabilizer of pier stud stand between 31.Multiple groups bridging 32 is along the height side of pier stud 31
It is laid to successively interval.Specifically, each group bridging 32 include two crossbeams being oppositely arranged up and down and two respectively with two
The diagonally connected cant beam of crossbeam, the both ends of crossbeam are welded and fixed with adjacent two pier studs 31 respectively, every end of cant beam respectively with
The crossbeam and pier stud 31 being correspondingly arranged are welded and fixed.When practice of construction, pier stud 31 uses model φ 630mm × 8mm steel pipe, pier
Column 31 guarantees its stability by the welding connection of 16# channel steel bridging 32 between each other.Pier stud 31 and bearing base station 42 pass through pre-
Embedded part is connected firmly.
Optionally, as shown in Figure 1, support beam frame 10 includes the sub-truss 11 laid along the length direction of trestle, along branch
The length direction of support truss 11 is successively spaced more proppings 12 being layed on sub-truss 11, along the width of sub-truss 11
Direction is successively spaced the vertical strutbeam 13 of more be layed on more proppings 12, is successively spaced along the width direction of sub-truss 11
It is layed in the more bearing beams 14 on 30 top of pier stud stand.Support panel 20 is layed on more vertical strutbeams 13.Sub-truss 11
It holds on Yu Duogen bearing beam 14.
When practice of construction, bearing beam 14 is I40b Two bors d's oeuveres I-steel bearing beam, the Two bors d's oeuveres I-steel crane that will be welded in advance
It hangs on the top of pier stud stand 30, and carries out welded connecting fixation in I-steel two sides 8# channel steel and 30 capital of pier stud stand.Branch
Support truss 11 is Bailey truss, and Bailey truss is prefabricated components, carries out assembly at the scene, is sling beret slice piecewise with crane,
It is connected with each other spreading with truss pin, all bolt nuts of truss frame for connecting must tighten, and truss pin is through must insert behind position
Good safety plug after Bailey truss assembly is good, is sling with crane and is placed on bearing beam 14.Bailey truss and Two bors d's oeuveres I-steel bearing beam it
Between connected with the U-shaped buckle that 8# channel steel is made into and U-shaped buckle be welded and fixed with the two being connected respectively, Bailey truss group with
It is connected between Bailey truss group with the bridging that 8# channel steel is made into, to enhance the integrally-built stabilization of support beam frame 10
Property.
When practice of construction, propping 12 uses I25a fashioned iron, and spacing is 0.75m, each propping between adjacent propping 12
12 laterally lay along trestle, and using the connection of gate-type card is inverted between propping 12 and Bailey truss, gate-type card is welded on propping
On 12, and fixed after being connected with Bailey truss with Bailey truss, and propping 12 and each contact point of Bailey truss beam use
Gate-type card is connected and is welded and fixed, and the web of gate-type card and propping 12 is welded to guarantee fusion length, and ensures to weld
Quality.Vertical strutbeam 13 uses I14 fashioned iron, spacing 0.30m between adjacent vertical strutbeam 13, while using spot welding with the junction I25a.
Optionally, support panel 20 includes the plurality of steel plates that laying is successively spaced along the length direction of support beam frame 10.Phase
The connection panel being respectively connected with the two is connected between adjacent two blocks of steel plates.Adjacent two pieces of steel plate intervals are laid, and steel plate can be reserved
The space expanded with heat and contract with cold prevents support panel 20 from deforming.When practice of construction, steel plate uses 12mm thickness checkered steel plate, the wide 6m of plate, weldering
On vertical strutbeam 13.Using interruption welding after being adjacent between steel facing and vertical strutbeam 13, while staying 2cm empty between every block of steel plate
Gap.
Referring to Fig.1, the preferred embodiment of the present invention additionally provides a kind of trestle construction method, for constructing out such as above-mentioned
One trestle work structure, trestle construction method the following steps are included:
Construction is successively spaced the multiple groups trestle pile foundation laid and be embedded in subterranean strata along trestle extending direction.
Pouring molding supports base station 42 in each group trestle pile foundation.
Pier stud stand 30 is constructed on each bearing base station 42.
It is constructed on the top of pier stud stand 30 while being supported on more pedestal column stands 30 of the extending direction laying along trestle
On support beam frame 10.
Supporting surface plate 20 is laid on support beam frame 10.
When using trestle construction method construction bridge structure of the invention, due to the preparation of trestle pile foundation site operation, bearing
42 cast-in-place shaping of base station, the preparation of 30 construction on site of pier stud stand, the preparation of 10 construction on site of support beam frame and support panel 20
Scene is laid with, to keep trestle work structure prefabricated and splicing structure, not only saves material, it is convenient to construct, and whole construction operations can
Assembling, moulding by casting are answered in the high engineering of complex geological condition and construction period to greatly reduce labour at the scene
With with apparent advantage, while the range of engineer application has also been enlarged, economic benefit, construction efficiency and application value are aobvious
It writes, in addition, trestle work structure is prefabricated and splicing structure, structural bearing performance is strong, overall stability is good；Using trestle of the invention
The trestle work structure that construction method is constructed out, since the lower section of support beam frame 10 is supported with multiple groups pier stud stand 30, each pier stud stand
30 lower section is supported with Conveyor belt 40, and Conveyor belt 40 includes the trestle pile foundation and bearing constructed by more miniature ground piles 41
In the bearing base station 42 in trestle pile foundation, so as to adjust the height of pier stud stand and then adjust stack according to practice of construction demand
The height of bridge, can also be by adjusting the laying mode and then tune of the more miniature ground piles of supporting width and/or adjustment of pier stud stand
The supporting width of whole trestle pile foundation adjusts the length of trestle pile foundation and then meets different stress and deformation requirements, applied widely；
It is first in trestle work structure of the invention compared to the prior art by way of Extended chemotherapy consolidated subsoil or grouting and reinforcing ground
The bearing support beam frame 10 jointly of multiple groups pier stud stand 30 is first passed through, one group of Conveyor belt is then supported below each pier stud stand 30
40, and every group of Conveyor belt 40 includes cast-in-place shaping and is embedded in more in subterranean strata miniature ground piles 41, miniature ground pile
41 can be used small-sized machine construction, thus it is easy for construction, speed of application is fast, miniature ground pile 41 by 42 stress of upper support base station pass
Pass outside the solid rock stratum in lower part, the miniature ground pile 41 of cast-in-place shaping can also the soil body to stake week or fragmented rock carry out
Consolidation increases the bearing capacity of Conveyor belt 40, and in addition to supporting base station 42, part is excavated without increasing, thus to environment shadow
Sound is small.
Optionally, as shown in Figure 1 and Figure 4, every trestle pile foundation includes more miniature ground piles 41 being embedded in subterranean strata,
And the pile foundation hole 50 for installing each miniature ground pile 41 is drilled in the bearing stratum for supporting Conveyor belt 40.Each miniature ground pile
41 include being vertically arranged in pile foundation hole 50 and the hollow pipe 411 of top end opening, the steel reinforcement cage that is vertically arranged in hollow pipe 411
412, it is filled in the cement mortar 413 between hollow pipe 411 and pile foundation hole 50 and in hollow pipe 411.Further, hollow pipe
Multiple slurry leakage holes 4110 are offered on 411 side wall.Miniature ground pile 41 further includes being filled in slurry leakage hole 4110 and connecting hollow
The concrete connecting rod 414 of cement mortar 413 inside and outside pipe 411.
Optionally, construction bridge pile foundation the following steps are included:
The pile foundation hole 50 for installing miniature ground pile 41 is bored in bearing stratum.
Prepare hollow pipe 411 and steel reinforcement cage 412.
Successively hollow pipe 411 is lifted in pile foundation hole 50, lifts steel reinforcement cage 412 in hollow pipe 411.
The joints cement mortar into pile foundation hole 50.
When practice of construction, the stake diameter of miniature ground pile 41 chooses 10cm~20cm (preferably 14.6cm) hollow steel pipe, wall thickness 5mm
~10mm, spacing 80cm between adjacent miniature ground pile 41,41 a length of 6m~20m of miniature ground pile, miniature ground pile 41 can be by equilateral
Triangle or square lay out pile, and horizontal layout is as shown in Figure 3.Pile foundation hole 50, pile foundation hole 50 are applied using boring method when construction
Aperture should be greater than 411 aperture of hollow pipe.It is bored on hollow pipe 411 and beats slurry leakage hole 4110,4110 aperture 0.8cm of slurry leakage hole~
1.5cm, pitch-row about 15cm.After hollow pipe 411 lifts in pile foundation hole 50, steel reinforcement cage 412 lifts in hollow pipe 411, adopt
It is filled with M30 slip casting mortar, grouting pressure can use 0.3MPa~0.5MPa；After slurry is overflow on 411 top of hollow pipe, pile foundation hole is closed
50 pressurization a period of times, mortar stop infusing after overflowing again.411 overall length of hollow pipe, which can be divided into not drilling, only starches section, bored grouting section
With conehead section, as shown in Figure 5.411 overlapping part of hollow pipe uses sleeve overlap welding, and sleeve height is not less than hollow pipe diameter 2
Times, sleeve wall thickness is not less than thickness of steel pipe, welds in perimeter of sleeve, welding is answered full.Hollow pipe 411, which pays attention to checking when plugging into, to hang down
Straight degree, prevents that connector is curved, folding.
Optionally, as shown in Figure 1, support beam frame 10 includes the sub-truss 11 laid along the length direction of trestle, along branch
The length direction of support truss 11 is successively spaced more proppings 12 being layed on sub-truss 11, along the width of sub-truss 11
Direction is successively spaced the vertical strutbeam 13 of more be layed on more proppings 12, is successively spaced along the width direction of sub-truss 11
It is layed in the more bearing beams 14 on 30 top of pier stud stand.Support panel 20 is layed on more vertical strutbeams 13.Sub-truss 11
It holds on Yu Duogen bearing beam 14.
Optionally, Construction Support roof beam structure 10 the following steps are included:
Bearing beam 14, sub-truss 11, propping 12 and vertical strutbeam 13 is prepared in situ.
By the installation of bearing beam 14 to the top of pier stud stand 30.
It will be in the installation to bearing beam 14 of sub-truss 11.
It will be in the installation to sub-truss 11 of propping 12.
It will be in the installation to propping 12 of vertical strutbeam 13.
When practice of construction, bearing beam 14 is I40b Two bors d's oeuveres I-steel bearing beam, the Two bors d's oeuveres I-steel crane that will be welded in advance
It hangs on the top of pier stud stand 30, and carries out welded connecting fixation in I-steel two sides 8# channel steel and 30 capital of pier stud stand.Branch
Support truss 11 is Bailey truss, and Bailey truss is prefabricated components, carries out assembly at the scene, is sling beret slice piecewise with crane,
It is connected with each other spreading with truss pin, all bolt nuts of truss frame for connecting must tighten, and truss pin is through must insert behind position
Good safety plug after Bailey truss assembly is good, is sling with crane and is placed on bearing beam 14.Bailey truss and Two bors d's oeuveres I-steel bearing beam it
Between connected with the U-shaped buckle that 8# channel steel is made into and U-shaped buckle be welded and fixed with the two being connected respectively, Bailey truss group with
It is connected between Bailey truss group with the bridging that 8# channel steel is made into, to enhance the integrally-built stabilization of support beam frame 10
Property.
When practice of construction, propping 12 uses I25a fashioned iron, and spacing is 0.75m, each propping between adjacent propping 12
12 laterally lay along trestle, and using the connection of gate-type card is inverted between propping 12 and Bailey truss, gate-type card is welded on propping
On 12, and fixed after being connected with Bailey truss with Bailey truss, and propping 12 and each contact point of Bailey truss beam use
Gate-type card is connected and is welded and fixed, and the web of gate-type card and propping 12 is welded to guarantee fusion length, and ensures to weld
Quality.Vertical strutbeam 13 uses I14 fashioned iron, spacing 0.30m between adjacent vertical strutbeam 13, while using spot welding with the junction I25a.
The above descriptions are merely preferred embodiments of the present invention, is not intended to limit the utility model, for this
For the technical staff in field, various modifications and changes may be made to the present invention.It is all in the spirit and principles of the utility model
Within, any modification, equivalent replacement, improvement and so on should be included within the scope of protection of this utility model.
Claims (10)
1. a kind of trestle work structure characterized by comprising
Along the support beam frame (10) of the extending direction erection of trestle, it is equipped on the support beam frame (10) and prolongs along its length
It stretches, the support panel (20) for supporting people or vehicle, is supported with below the support beam frame (10) for supporting it jointly
Multiple groups pier stud stand (30), pier stud stand (30) described in multiple groups is successively spaced cloth along the length direction of the support beam frame (10)
If；
The Conveyor belt (40) on the basis as trestle support, the stack are supported with below each pier stud stand (30)
Bridge Foundation (40) includes by site operation and being embedded in the trestle pile foundations of more in subterranean strata miniature ground piles (41) buildings, and branch
It holds in the bearing base station (42) in the trestle pile foundation, the pier stud stand (30) is supported on the bearing base station being correspondingly arranged
(42) on.
2. trestle work structure according to claim 1, which is characterized in that
The support beam frame (10) is the hollow structure assembled along trestle extending direction by fashioned iron；
The pier stud stand (30) is the hollow cylindrical structure assembled by the fashioned iron of the steel pipe and joint steel pipe laid vertically；
Bearing base station (42) is the mesa-shaped knot of the steel mesh constructed by reinforcing bar He the concrete formation being cast on steel mesh
Structure；
The miniature ground pile (41) is by the steel pipe laid vertically, the steel reinforcement cage being laid in steel pipe and to be cast in steel pipe and reinforcing bar
The stake shape structure of concrete formation on cage.
3. trestle work structure according to claim 1, which is characterized in that
The more miniature ground piles (41) for constructing the trestle pile foundation are vertically arranged and in regular arrays.
4. trestle work structure according to claim 1, which is characterized in that
The pile foundation for installing each miniature ground pile (41) is drilled in bearing stratum for supporting the Conveyor belt (40)
Hole (50)；
The miniature ground pile (41) includes being vertically arranged in the pile foundation hole (50) and the hollow pipe (411) of top end opening, perpendicular
The steel reinforcement cage (412) that is directly set in the hollow pipe (411) is filled in the hollow pipe (411) and the pile foundation hole (50)
Between and the hollow pipe (411) in cement mortar (413).
5. trestle work structure according to claim 4, which is characterized in that
Multiple slurry leakage holes (4110) are offered on the side wall of the hollow pipe (411)；
The miniature ground pile (41) further includes being filled in the slurry leakage hole (4110) and connecting inside and outside the hollow pipe (411)
The concrete connecting rod (414) of the cement mortar (413) of two sides.
6. trestle work structure according to claim 4, which is characterized in that
The outer diameter of the hollow pipe (411) is less than the internal diameter of the pile foundation hole (50)；
The outer diameter of the steel reinforcement cage (412) is less than the internal diameter of the hollow pipe (411).
7. trestle work structure according to claim 1, which is characterized in that
Bearing base station (42) includes reinforcement bar support net (421) and pours in the concrete on the reinforcement bar support net (421)
(422)；
The reinforcement bar support net (421) includes the longitudinal reinforcement laid along the trestle length direction, along the trestle width direction
The connection of the transverse steel, the connection longitudinal reinforcement, the transverse steel, the longitudinal reinforcement and the transverse steel of laying
Reinforcing bar.
8. trestle work structure according to claim 1, which is characterized in that
The pier stud stand (30) includes more pier studs (31) being vertically arranged, and is connected between the adjacent pier stud (31) and uses
In the multiple groups bridging (32) for enhancing pier stud stand (30) supporting stabilizer；
Bridging described in multiple groups (32) is successively spaced laying along the short transverse of the pier stud (31).
9. trestle work structure according to claim 1, which is characterized in that
The support beam frame (10) includes the sub-truss (11) laid along the length direction of the trestle, along the sub-truss
(11) length direction is successively spaced more proppings (12) being layed on the sub-truss (11), along the sub-truss
(11) width direction is successively spaced more vertical strutbeams (13) being layed on the more proppings (12), along the support purlin
The width direction of frame (11) is successively spaced more bearing beams (14) for being layed in pier stud stand (30) top；
The support panel (20) is layed on the more vertical strutbeams (13)；
The sub-truss (11) is supported on the more bearing beams (14).
10. trestle work structure according to claim 1, which is characterized in that
Support panel (20) includes the plurality of steel plates that laying is successively spaced along the length direction of the support beam frame (10)；
The connection panel being respectively connected with the two is connected between adjacent two blocks of steel plates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821833958.9U CN209412681U (en) | 2018-11-08 | 2018-11-08 | Trestle work structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821833958.9U CN209412681U (en) | 2018-11-08 | 2018-11-08 | Trestle work structure |
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| CN209412681U true CN209412681U (en) | 2019-09-20 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109322241A (en) * | 2018-11-08 | 2019-02-12 | 中建五局土木工程有限公司 | Trestle bridge structure and construction method |
| CN112779848A (en) * | 2021-01-26 | 2021-05-11 | 上海市水利工程设计研究院有限公司 | Novel prefabricated concrete plank road structure and construction method thereof |
| CN115110393A (en) * | 2022-04-18 | 2022-09-27 | 浙江中桓建设有限公司 | Stable section steel bridge and construction method of steel bridge |
| RU2838806C1 (en) * | 2024-07-29 | 2025-04-22 | Андрей Александрович Овчинников | Inventory pile-screw abutment of horizontal stability of single-track collapsible road bridge sarm-m for rivers with high floods |
-
2018
- 2018-11-08 CN CN201821833958.9U patent/CN209412681U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109322241A (en) * | 2018-11-08 | 2019-02-12 | 中建五局土木工程有限公司 | Trestle bridge structure and construction method |
| CN109322241B (en) * | 2018-11-08 | 2024-10-29 | 中建五局土木工程有限公司 | Trestle structure and construction method |
| CN112779848A (en) * | 2021-01-26 | 2021-05-11 | 上海市水利工程设计研究院有限公司 | Novel prefabricated concrete plank road structure and construction method thereof |
| CN115110393A (en) * | 2022-04-18 | 2022-09-27 | 浙江中桓建设有限公司 | Stable section steel bridge and construction method of steel bridge |
| RU2838806C1 (en) * | 2024-07-29 | 2025-04-22 | Андрей Александрович Овчинников | Inventory pile-screw abutment of horizontal stability of single-track collapsible road bridge sarm-m for rivers with high floods |
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