CN109882195A - An assembled large-section rectangular pipe jacking pipe section and construction method - Google Patents
An assembled large-section rectangular pipe jacking pipe section and construction method Download PDFInfo
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- CN109882195A CN109882195A CN201910236242.3A CN201910236242A CN109882195A CN 109882195 A CN109882195 A CN 109882195A CN 201910236242 A CN201910236242 A CN 201910236242A CN 109882195 A CN109882195 A CN 109882195A
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Abstract
本发明涉及装配式大断面矩形顶管管节，由若干顶管管节相互连接而成，每个顶管管节由若干管片拼接而成；管片按位置包括：下部管片、左下管片、右下管片、左上管片、右上管片和上部管片；下部管片和上部管片为相同的梯形，左下管片和右上管片为相同的L形，长端为斜口，短端为平口；右下管片和左上管片为相同的L形，长端为平口，短端为斜口。本发明的有益效果是：采用6片预制混凝土管片进行拼装，管片预制化程度高、加工方便，节约了材料成本；管片之间依据管片长度采用多组斜螺栓连接，斜螺栓一端埋设螺母，对管片损伤少，管片防腐蚀性、耐久性好；大断面顶管预制管片相较于整段管节体积小、自重轻，制造、存放、运输方便。
The invention relates to an assembled large-section rectangular pipe jacking pipe section, which is formed by connecting a plurality of pipe jacking pipe sections with each other, and each pipe jacking pipe section is formed by splicing a plurality of pipe pieces; segment, lower right segment, upper left segment, upper right segment and upper segment; the lower segment and the upper segment are the same trapezoid, the lower left segment and the upper right segment are the same L shape, and the long end is an oblique opening, The short end is a flat mouth; the lower right segment and the upper left segment are the same L shape, the long end is a flat mouth, and the short end is an oblique mouth. The beneficial effects of the invention are as follows: 6 prefabricated concrete segments are used for assembling, the segment prefabrication is high, the processing is convenient, and the material cost is saved; The embedded nut has less damage to the segment, and the segment has good corrosion resistance and durability; compared with the whole segment, the prefabricated segment is smaller in volume and lighter in weight, and is more convenient to manufacture, store and transport.
Description
Technical field
The present invention relates to jacking construction engineering field, in particular to a kind of assembled big cross section rectangle pipe jacking tube coupling and construction
Method is suitable for big cross section rectangular top pipe and constructs.
Background technique
Pipe-jacking technology is a no-dig technique driving formula pipeline laying construction technology for municipal construction.Due to jacking construction
Traffic can not be blocked, do not destroy road and vegetation, can to avoid resident living brought by excavation construction and Coherent traffic noise and
To the destroying infection of environment and building foundation, construction site is small, noise is small, and can go deep into underground job and be increasingly subject to people
Concern.
With the development of the social economy, the push pipe cross dimension that can be constructed continues to increase, the rectangular top pipe of big cross section is applied
Work method is due to its excavation face is big, effective sectional area is big by favor.
Maximum rectangular shield size can reach 10.4 × 7.5m at present in China, from the 73t that weighs.General big cross section square
Shape shield size is differed in 5 × 3m to 10 × 7m etc., 20t to the 70t that is self-possessed, and ring width is in the majority with 1.5m.With regard to Shenzhen Metro nine
For number line big cross section rectangular top pipe, which is 7.7 × 4.3m, and weigh 54t certainly, is needed using self weight 310t's
Crane is installed.
The rectangle pipe jacking tube coupling of big cross section existed from the problems such as great, transport and installation difficulty are big, increased difficulty of construction
And engineering cost, affect the development of big cross section pipe jacking construction technique.Have at present and a section jacking pipe joints are divided into 2 pieces or 4 pieces
The patent of section of jurisdiction, but it is not directed to specifically assembly and form of construction work.
In conclusion big cross section rectangular top pipe section of jurisdiction existed from the problems such as great, transport and installation difficulty are big, need to pass through
Improved technology solves these problems.
Summary of the invention
It is an object of the invention to solve the transport of big cross section rectangle pipe jacking tube coupling, deficiency difficult to install, a kind of dress is provided
With formula big cross section rectangle pipe jacking tube coupling and construction method.
Assembled big cross section rectangle pipe jacking tube coupling, is connected with each other by several jacking pipe joints, if each jacking pipe joints by
Main pipe piece is spliced；Section of jurisdiction opsition dependent include: lower part section of jurisdiction, lower-left section of jurisdiction, bottom right section of jurisdiction, upper left section of jurisdiction, upper right section of jurisdiction and
Top section of jurisdiction；Lower part section of jurisdiction and top section of jurisdiction be it is identical trapezoidal, lower-left section of jurisdiction and upper right section of jurisdiction are identical L shape, and long end is
Angle, short end are flat mouth；Bottom right section of jurisdiction and upper left section of jurisdiction are identical L shape, and long end is flat mouth, and short end is angle.
As preferred: being tiltedly bolted between section of jurisdiction by contact surface and multiple groups, section of jurisdiction is arranged together on the outside of contact surface
The inside water-proof strip of water-swellable is arranged in elastic sealing gasket on the inside of elastic sealing gasket, and setting inside is embedding on the inside of the water-proof strip of inside
Seam.
As preferred: passing through three water-proof system connector of F shape between adjacent jacking pipe joints and be tiltedly bolted, F shape three
Water-proof system connector includes: the 1st water-proof system: bell and spigot is arranged in jacking pipe joints seam crossing, and interface steel collar and socket are mixed
Xtah Crude Clay structure is closely connected, is made of in interface steel collar end and the closely connected place's setting of concrete 2 steel loops and water expansion sealing strip
Sealing steel loop；Closely connected semicircle sealing rubber ring and olecranon-like sealing rubber ring on the outside of jacking pipe joints socket concrete structure；2nd
Road water-proof system: it slots in jacking pipe joints female end tube wall middle and upper part, is embedded in porous type EPT rubber packing pad；In push pipe
Tube coupling socket end face and gasket corresponding position；3rd water-proof system: two jacking pipe joints interfaces are arranged on the inside of jacking pipe joints
Filleting slot, is injected with sealant.
As preferred: being connected between adjacent jacking pipe joints for the fissure of displacement.
The construction method of assembled big cross section rectangle pipe jacking tube coupling, includes the following steps:
1) prefabricated pipe section, is transported to construction site, using small crane by lower part section of jurisdiction, lower-left section of jurisdiction and bottom right section of jurisdiction
Be hung to arch bottom position, then directly it is assembled in place；
2) dismountable assembled rack, is overlapped on assembled good section of jurisdiction, rack bottom is equipped with idler wheel, can push up
Longitudinal movement inside pipe tube coupling；Hydraulic jack is installed below rack, the push pipe of rack to design is raised by hydraulic jack
Top inside tube coupling；
3) upper left section of jurisdiction and upper right section of jurisdiction, are hung to rack two sides using small crane, are supported on rack；Worker passes through
Rack reaches left and right sides designated position, assembled lower-left section of jurisdiction and upper left section of jurisdiction, bottom right section of jurisdiction and upper right section of jurisdiction；
4), top section of jurisdiction is hung on rack using small crane；Worker is reached at the top of jacking pipe joints by rack, assembled
Upper left section of jurisdiction and top section of jurisdiction, upper right section of jurisdiction and top section of jurisdiction；
5), after pipe sheet assembling, hydraulic jack is withdrawn, is no longer contacted on the inside of rack top and jacking pipe joints；It is spelling
Steel plate is set up between the jacking pipe joints of the jacking pipe joints and jacking that install, the rack equipped with idler wheel is entered by steel plate
In the jacking pipe joints of jacking；
6), the jacking pipe joints jacking forward for being completed assembly with hydraulic jack, then carry out next jacking pipe joints splicing.
The beneficial effects of the present invention are:
1, assembly is carried out using 6 precast concrete sections of jurisdiction, segment prefabricatedization degree is high, easy to process, has saved material
Cost.
2, it is tiltedly bolted according to chip length using multiple groups between section of jurisdiction, nut is buried in oblique bolt one end, damages to section of jurisdiction
Wound is few, and section of jurisdiction anticorrosive property, durability are good.
3, compared to whole section tube coupling of big cross section push pipe prefabricated pipe section it is small in size, from heavy and light, manufacture, storage, convenient transportation.
4, material installation and manual request needed for transport, assembled push pipe reduce, and improve construction efficiency, reduce engineering
Cost.
5, jacking pipe joints connector adds longitudinal straight bolt, increases the rigidity and tensile capacity of connector, increases rectangular top pipe
Safety in utilization.
Detailed description of the invention
Fig. 1 is the big cross section rectangular top pipe sectional view of pipe sheet assembling；
Fig. 2 is pipe sheet assembling flow diagram；
Fig. 3 connected mode schematic diagram between section of jurisdiction；
Fig. 4 interface form schematic diagram between tube coupling；
Fig. 5 is 6 pieces of assembled big cross section rectangle pipe jacking tube coupling staggered joint erection schematic diagrames；
Active well diagrammatic cross-section when Fig. 6 is jacking construction；
Description of symbols: the lower part 1- section of jurisdiction, the lower-left 2- section of jurisdiction, the bottom right 3- section of jurisdiction, the upper left 4- section of jurisdiction, 5- upper right section of jurisdiction,
The top 6- section of jurisdiction, the oblique bolt of 7-, 8- rack, 9- idler wheel, 10- hydraulic jack, 11- outer elastic gasket, the inside 12- waterproof
Filleting, 14- sealant, 15- elastic sealing gasket, 16- backing plate, 17- interface steel collar, 18- steel loop, 19, semicircle on the inside of item, 13-
Shape sealing rubber ring, 20- olecranon-like sealing rubber ring, 21- jacking pipe joints, 22- push-bench, 23- push up iron, 24- small crane.
Specific embodiment
The present invention is described further below with reference to embodiment.The explanation of following embodiments is merely used to help understand this
Invention.It should be pointed out that for those skilled in the art, without departing from the principle of the present invention, also
Can be with several improvements and modifications are made to the present invention, these improvement and modification also fall into the protection scope of the claims in the present invention
It is interior.
As shown in Figures 1 to 6, the assembled big cross section rectangle pipe jacking tube coupling and construction method of the present embodiment, it is pre- using 6 pieces
Concrete pipe sheet processed assembles big cross section rectangle pipe jacking tube coupling 21.Section of jurisdiction position is respectively to be named as lower part when according to assembly
Section of jurisdiction 1, lower-left section of jurisdiction 2, bottom right section of jurisdiction 3, upper left section of jurisdiction 4, upper right section of jurisdiction 5 and top section of jurisdiction 6 constitute big cross section rectangular top pipe
Tube coupling.Its concrete construction method is as follows: excavating active well, lifts jacking device.6 pieces of prefabricated pipe sections are transported to construction site.
Simultaneously counter force wall is arranged in hardening push pipe work surface, hardening push pipe work surface.Section of jurisdiction is transported in active well using small crane 24,
Pipe sheet assembling is carried out in 21 jacking reserved location of jacking pipe joints.Face is excavated, 10 jacking jacking pipe joints of hydraulic jack are utilized
21 and synchronous grouting.Grouting behind shaft or drift lining after push pipe jacking.Recycle the above section of jurisdiction lifting, jack-in process.
Pipe sheet assembling detailed process and joint detail are as follows: utilizing small crane 24 by lower part section of jurisdiction 1,2 and of lower-left section of jurisdiction
Bottom right section of jurisdiction 3 is hung to arch bottom position, then directly it is assembled in place.Dismountable dress is overlapped on lower-left section of jurisdiction 1 and upper right section of jurisdiction 2
With formula rack 8,8 bottom of rack is equipped with idler wheel 9, can vertically move inside push pipe；Hydraulic jack 10 is installed below rack 8,
The top inside rack 8 to the jacking pipe joints 21 of design is raised by hydraulic jack 10.Upper left is managed using small crane 24
Piece 4 and the rotation of upper right section of jurisdiction 5 adjust the angle, and are hung to 8 two sides of rack, are supported on rack 8；Worker reaches a left side by rack 8
Right two sides designated position, assembled lower-left section of jurisdiction 2 and upper left section of jurisdiction 4, bottom right section of jurisdiction 3 and upper right section of jurisdiction 5.It will using small crane 24
Top section of jurisdiction 6 is hung on rack 8；Worker is reached at the top of push pipe by rack 8, assembled upper left section of jurisdiction 4 and top section of jurisdiction 6, upper right
Section of jurisdiction 5 and top section of jurisdiction 6.After pipe sheet assembling, hydraulic jack 10 is withdrawn, is no longer contacted on the inside of 8 top of rack and push pipe；
Steel plate is set up between the push pipe of assembled good push pipe and jacking, the rack 8 equipped with idler wheel 9 is entered by steel plate have been pushed up
Into push pipe in.
It can be connected according to chip length using the oblique bolt 7 of multiple groups between section of jurisdiction, and use outer elastic gasket 11, inside
13 waterproof of water-proof strip 12 and inside filleting.Design on the outside of shield duct piece by being arranged one of elastic sealing gasket, 11 sealing；Outside
It encloses and water-swellable water-proof strip 12 is set on the inside of elastic sealing gasket, 12 water-swellable of water-swellable water-proof strip and the work for playing auxiliary waterproof
With, it is ensured that the service life and durability of gasket；Setting inside filleting 13, forms multi-way prevention on the inside of inside water-proof strip 12,
Ensure seam comprehensive waterproof effect.
It is connected between tube coupling and tube coupling using three water-proof system connector of F shape, it is strong to reinforce connection using the oblique bolt 7 of multiple groups
Degree.Three water-proof system connector details of F shape is as follows: the 1st water-proof system: bell and spigot, interface steel collar being arranged at joints of segment
17 use thickness 18mm steel plates, closely connected with socket concrete structure, to avoid seeping water between steel loop and concrete, in steel loop end and
The sealing steel loop 18 being made of 2 φ, 6 steel loop and water expansion sealing strip is arranged in the closely connected place of concrete.Tube coupling socket concrete structure
The closely connected semicircle rubber ring 19 in outside and olecranon-like sealing rubber ring 20, when construction during insertion interface steel collar 17, rubber
Circle is compressed, and closely connected steel collar forms good water-proof system.2nd water-proof system: it is opened in tube coupling female end tube wall middle and upper part
Slot is embedded in porous type EPT rubber packing pad 15.In tube coupling socket end face and 15 corresponding position of gasket, manual polishing light
Cunning is smooth, can be closely connected with EPT rubber packing pad 15 after guarantee assembling construction, plays waterproof purpose.3rd waterproof body
Be (reserved water-proof system): filleting slot is arranged in two tube coupling interfaces on the inside of tube coupling, and it is close that injection bi-component polysulfide can be used in the later period
14 form of sealing carries out waterproof using water receiving tank diversion form.
Adjacent tube coupling still uses 6 prefabricated pipe sections, connect with next tube coupling fissure of displacement mode, and the tube coupling of one section of interval is used
Section of jurisdiction is identical.To improve segment prefabricatedization efficiency, it is general that the section of jurisdiction that the present invention designs may be implemented part, i.e. lower part section of jurisdiction
1 and top section of jurisdiction 6 and the top and the bottom section of jurisdiction of next tube coupling it is generally applicable, lower-left section of jurisdiction 2 and upper right section of jurisdiction 5 are generally applicable, bottom right section of jurisdiction 3
Generally applicable with upper left section of jurisdiction 4, lower-left, the upper right section of jurisdiction of next tube coupling are generally applicable, and bottom right, the upper left section of jurisdiction of next tube coupling can lead to
With.
It is connected according to chip length using the oblique bolt 7 of multiple groups between section of jurisdiction, nut is buried in oblique 7 one end of bolt, damages to section of jurisdiction
Wound is few, and section of jurisdiction anticorrosive property, durability are good.Connector between jacking pipe joints 21 adds longitudinal tiltedly bolt 7, increases the rigid of connector
Degree and tensile capacity, a possibility that increasing the safety in utilization of rectangular top pipe, while reducing percolating water, joint distortion.
Assembled big cross section rectangle pipe jacking tube coupling assembly is different from that shield duct piece is assembled in tunnel, jacking pipe joints 21 it is upper
Portion section of jurisdiction 6 is made into inverted trapezoidal, and convenient for assembly, and upper left section of jurisdiction 4 and upper right section of jurisdiction 5 share the soil body for oblique bolt 7 and act on push pipe
Soil pressure on tube coupling 21 increases tension, the shear resistance of oblique bolt 7.
Rack 8 is formed by fashioned iron and bolt combination.Rack 8 uses detachable assembling type, and lower part is equipped with idler wheel 9, push pipe pipe
It can enter in the push pipe of jacking after the completion of piece is assembled, can avoid the repeatedly assembled of rack 8；Rack 8 can also be torn open when necessary
It unloads.
Using the construction method of assembled big cross section rectangle pipe jacking tube coupling 21, comprising the following steps:
1,6 pieces of prefabricated pipe sections are transported to construction site, using small crane 24 by lower part section of jurisdiction 1, lower-left section of jurisdiction 2 and the right side
Lower section of jurisdiction 3 is hung to arch bottom position, then directly it is assembled in place.
2, dismountable assembled rack 8 is overlapped on assembled good section of jurisdiction, 8 bottom of rack is equipped with idler wheel 9, can be
Longitudinal movement inside push pipe；Hydraulic jack 10 is installed below rack 8, rack 8 is raised to design by hydraulic jack 10
Top inside jacking pipe joints 21.
3, upper left section of jurisdiction 4 and upper right section of jurisdiction 5 are hung to 8 two sides of rack using small crane 24, are supported on rack 8；Work
People reaches left and right sides designated position, assembled lower-left section of jurisdiction 2 and upper left section of jurisdiction 4, bottom right section of jurisdiction 3 and upper right section of jurisdiction by rack 8
5。
4, top section of jurisdiction 6 is hung on rack 8 using small crane 24；Worker is reached at the top of push pipe by rack 8, assembled
Upper left section of jurisdiction 4 and top section of jurisdiction 6, upper right section of jurisdiction 5 and top section of jurisdiction 6.
5, after pipe sheet assembling, hydraulic jack 10 is withdrawn, is no longer contacted on the inside of 8 top of rack and push pipe；In assembly
Steel plate is set up between the push pipe of good push pipe and jacking, the rack 8 equipped with idler wheel 9 enters the top of jacking by steel plate
Guan Zhong.
6, the jacking forward of jacking pipe joints 21 for being completed assembly with hydraulic jack 10, then carry out next tube coupling splicing.
Claims (5)
1. a kind of assembled big cross section rectangle pipe jacking tube coupling, it is characterised in that: it is connected with each other by several jacking pipe joints (21),
Each jacking pipe joints (21) are spliced by several sections of jurisdiction；Section of jurisdiction opsition dependent includes: lower part section of jurisdiction (1), lower-left section of jurisdiction (2), the right side
Lower section of jurisdiction (3), upper left section of jurisdiction (4), upper right section of jurisdiction (5) and top section of jurisdiction (6)；Lower part section of jurisdiction (1) and top section of jurisdiction (6) are identical
It is trapezoidal, lower-left section of jurisdiction (2) and upper right section of jurisdiction (5) be identical L shape, long end be angle, short end is flat mouth；Bottom right section of jurisdiction (3)
It is identical L shape with upper left section of jurisdiction (4), long end is flat mouth, and short end is angle.
2. assembled big cross section rectangle pipe jacking tube coupling according to claim 1, it is characterised in that: pass through contact between section of jurisdiction
Face and the oblique bolt of multiple groups (7) connection, one of elastic sealing gasket (11) are arranged in section of jurisdiction on the outside of contact surface, in elastic sealing gasket (11)
The inside water-proof strip (12) of water-swellable, setting inside filleting (13) on the inside of inside water-proof strip (12) is arranged in inside.
3. assembled big cross section rectangle pipe jacking tube coupling according to claim 1, it is characterised in that: adjacent jacking pipe joints (21)
Between connected by three water-proof system connector of F shape and oblique bolt (7), three water-proof system connector of F shape includes: the 1st waterproof
System: bell and spigot is arranged in jacking pipe joints (21) seam crossing, and interface steel collar (17) and socket concrete structure are closely connected, in interface
The sealing steel loop (18) being made of 2 steel loops and water expansion sealing strip is arranged in steel collar (17) end and the closely connected place of concrete；Top
Closely connected semicircle sealing rubber ring (19) and olecranon-like sealing rubber ring (20) on the outside of pipe tube coupling (21) socket concrete structure；The
2 water-proof systems: it slots in jacking pipe joints (21) female end tube wall middle and upper part, is embedded in porous type EPT rubber packing pad
(15)；In jacking pipe joints (21) socket end face and gasket (15) corresponding position；3rd water-proof system: in jacking pipe joints (21)
Filleting slot is arranged in inside two jacking pipe joints (21) interface, is injected with sealant (14).
4. assembled big cross section rectangle pipe jacking tube coupling according to claim 1, it is characterised in that: adjacent jacking pipe joints
(21) it is connected between for the fissure of displacement.
5. a kind of construction method of assembled big cross section rectangle pipe jacking tube coupling as described in claim 1, which is characterized in that including
Following steps:
1) prefabricated pipe section, is transported to construction site, using small crane (24) by lower part section of jurisdiction (1), lower-left section of jurisdiction (2) and right
Lower section of jurisdiction (3) is hung to arch bottom position, then directly it is assembled in place；
2) dismountable assembled rack (8), is overlapped on assembled good section of jurisdiction, rack (8) bottom is equipped with idler wheel (9),
It can be vertically moved inside jacking pipe joints (21)；Hydraulic jack (10) are installed below rack (8), are passed through hydraulic jack (10)
Raise rack (8) top internal to the jacking pipe joints (21) of design；
3) upper left section of jurisdiction (4) and upper right section of jurisdiction (5), are hung to rack (8) two sides using small crane (24), are supported on rack
(8) on；Worker reaches left and right sides designated position, assembled lower-left section of jurisdiction (2) and upper left section of jurisdiction (4), bottom right pipe by rack (8)
Piece (3) and upper right section of jurisdiction (5)；
4), top section of jurisdiction (6) are hung on rack (8) using small crane (24)；Worker reaches jacking pipe joints by rack (8)
(21) at the top of, assembled upper left section of jurisdiction (4) and top section of jurisdiction (6), upper right section of jurisdiction (5) and top section of jurisdiction (6)；
5) it, after pipe sheet assembling, withdraws hydraulic jack (10), is no longer connect on the inside of rack (8) top and jacking pipe joints (21)
Touching；Steel plate is set up between the jacking pipe joints (21) of assembled good jacking pipe joints (21) and jacking, the platform of idler wheel (9) is housed
Frame (8) is entered by steel plate in the jacking pipe joints (21) of jacking；
6), jacking pipe joints (21) jacking forward for being completed assembly with hydraulic jack (10), then carry out next jacking pipe joints
(21) splice.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910236242.3A CN109882195A (en) | 2019-03-27 | 2019-03-27 | An assembled large-section rectangular pipe jacking pipe section and construction method |
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| CN201910236242.3A CN109882195A (en) | 2019-03-27 | 2019-03-27 | An assembled large-section rectangular pipe jacking pipe section and construction method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110685712A (en) * | 2019-10-12 | 2020-01-14 | 北京中岩智泊科技有限公司 | Rectangular pipe jacking pipe joint capable of being assembled |
| CN111255947A (en) * | 2020-01-19 | 2020-06-09 | 重庆大学 | Temporary pipe joint and pipe jacking construction method |
| CN113374499A (en) * | 2021-06-30 | 2021-09-10 | 江苏广泓重工设备有限公司 | Pipe joint shield assembling method with rectangular section |
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