CN108729346A - A kind of ring orientation prestress pipeline configuration and production method - Google Patents
A kind of ring orientation prestress pipeline configuration and production method Download PDFInfo
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- CN108729346A CN108729346A CN201810706850.1A CN201810706850A CN108729346A CN 108729346 A CN108729346 A CN 108729346A CN 201810706850 A CN201810706850 A CN 201810706850A CN 108729346 A CN108729346 A CN 108729346A
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Classifications
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/02—Piers; Abutments ; Protecting same against drifting ice
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B21/00—Methods or machines specially adapted for the production of tubular articles
- B28B21/56—Methods or machines specially adapted for the production of tubular articles incorporating reinforcements or inserts
- B28B21/60—Methods or machines specially adapted for the production of tubular articles incorporating reinforcements or inserts prestressed reinforcements
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B21/00—Methods or machines specially adapted for the production of tubular articles
- B28B21/70—Methods or machines specially adapted for the production of tubular articles by building-up from preformed elements
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D23/00—Caissons; Construction or placing of caissons
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F3/00—Sewer pipe-line systems
- E03F3/04—Pipes or fittings specially adapted to sewers
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
Abstract
The invention discloses a kind of ring orientation prestress pipeline configuration and production methods, ring orientation prestress pipeline configuration includes two pieces or more of the precast concrete arc section of jurisdiction mutually spliced, adjacent two pieces of precast concrete arcs section of jurisdiction is connected by expansive concrete, it is provided on the lateral surface of precast concrete arc section of jurisdiction along circumferentially extending reserved groove, the both ends of the precast concrete curved pipe piece circumferential direction are respectively arranged with tenon and blind mortise；The ring orientation prestress pipeline configuration further includes having the annular steel wire being arranged in the reserved groove and and the thrustor for adjusting spacing between two neighboring precast concrete arc section of jurisdiction.Ring orientation prestress pipeline configuration provided by the invention can bear larger pressure, change traditional anchorage problem, fundamentally curved prestressing force is avoided to lose.Production method provided by the invention can realize precast assembly, construction is simple, safe and reliable, extend the application field of ring orientation prestress pipeline configuration.
Description
Technical field
The present invention relates to pipe technology field more particularly to a kind of ring orientation prestress pipeline configuration and production method, this hairs
Bright prestress pipe can be applied to the engineering construction fields such as municipal pipeline, open caisson, hollow pier.
Background technology
With China's Development of China's Urbanization, municipal project is developed rapidly, what the pipeline configuration in municipal works used
It is more and more, such as feedwater piping, open caisson, cofferdam etc..Pipeline configuration passes through spiral shell in assembly between circumferential two neighboring section of jurisdiction
It tethers and connects, the gap between adjacent section of jurisdiction is difficult to obtain effectively closed.With water erosion, stratum differential settlement, traffic
The influence of load etc., phenomena such as causing section of jurisdiction gap weakness generation infiltration, destroy.The existing applying method to ring orientation prestress
Complexity, and anchor is needed, easily lead to anchorage zone loss of prestress.
In existing research, have technical research of the part about pipeline configuration, but for practicability, convenience and peace
It is unsatisfactory from the aspect of full property.Such as application No. is a kind of ring orientation prestress of CN201510523909 to reinforce pipeline configuration
And production method, pipeline configuration part devise arch bottom, adjacent fast, sealing block and the block that binds, the above reserved groove binds
Block reserving hole channel, arch bottom, adjacent fast, sealing block and the block that binds are together in series to form cylindrical structure by steel strand wires, steel strand wires
Through the block outstanding that binds, the steel strand wires lockset by protruding from the block that binds, which is fixed, realizes prestress application.This method is prefabricated multiple
It is miscellaneous, construction is cumbersome, and it is big to intert steel strand wires difficulty for large span pipeline configuration, causes prestress application effect poor, prestressing force
Tensioning precision is low, and prestressing force is easy loss.
For another example application No. is a kind of prestressing force section of jurisdiction of CN201620461935, two inner and outer pipes loops are devised, each
Section of jurisdiction ring is connected and composed by several piece head and the tail of being in charge of, and is uniformly distributed on section of jurisdiction along annulus to steel strand wires duct, any to be in charge of piece
Each section of jurisdiction ring is connected carry out tensioning by steel strand wires, obtains ring orientation prestress by least one anchorage slot.It is suchlike
The ring orientation prestress loss that traditional anchorage style applies is larger, how to improve anchorage style, it is municipal pipe to avoid loss of prestress
One of current important research content of road structure.
Invention content
In order to solve existing prestress pipe structure in tension steel strand（Steel wire）When the excessive problem of loss of prestress, this
A kind of ring orientation prestress pipeline configuration of invention offer and production method.Specific technical solution is as follows.
A kind of ring orientation prestress pipeline configuration comprising two pieces or more of the precast concrete arc section of jurisdiction mutually spliced,
It is characterized in that：Adjacent two pieces of precast concrete arcs section of jurisdiction is connected by expansive concrete, the precast concrete
Be provided on the lateral surface of arc section of jurisdiction along circumferentially extending reserved groove, the precast concrete curved pipe piece it is circumferential two
End is respectively arranged with tenon and blind mortise, and two neighboring precast concrete arc section of jurisdiction is spliced by tenon and blind mortise；It is described
Ring orientation prestress pipeline configuration further includes having the annular steel wire being arranged in the reserved groove and two neighboring pre- for adjusting
The thrustor of spacing between concrete arc-shaped section of jurisdiction processed.
Further, the both ends of the surface of the precast concrete curved pipe piece circumferential direction carry out cutting, kerve or wharf's pavement quality；This
Sample is conducive to improve the bonding strength of expansive concrete and precast concrete arc section of jurisdiction.
Further, the length of the tenon is less than the depth of the blind mortise so that and two arc sections of jurisdiction intact can contact,
Enhance the structural stability of pipeline under the conditions of ensureing that design is prestressed.
Further, the thrustor includes swing handle, turnbarrel, ball bearing and pushing ram, the rotation
One end of handle is located at the inside of precast concrete arc section of jurisdiction, and the other end is located in precast concrete arc section of jurisdiction and has
Have a handle bevel gear, the turnbarrel has sleeve bevel gear engage with the handle bevel gear, the turnbarrel and
The inner ring of the ball bearing is fixedly connected, and the outer ring of the ball bearing, which is fixed, is embedded in precast concrete arc section of jurisdiction
It is interior, the pushing ram is provided in the turnbarrel, the turnbarrel and pushing ram are threadedly coupled, and the pushing ram can be made
It moves along a straight line and is stretched out from the bottom of the blind mortise and be connected to the tenon.
Further, the annular steel wire is by welding formation ring-type or forming ring-type by anchorage.
Further, the bottom of the reserved groove is provided with the steel plate for accepting the annular steel wire.Steel plate uses
Sheet metal bears pressure of the annular steel wire to precast concrete arc section of jurisdiction, improves annular steel wire and precast concrete curved pipe
The stress concentration situation of piece junction.
Further, the diameter of the reserved groove of the precast concrete arc section of jurisdiction is more than the annular steel wire
Diameter.
Further, the ratio of mud of the expansive concrete ranging from 0.5-1.0.
Further, the expansive concrete is filled in adjacent two blocks of precast concretes by way of high-pressure slip-casting
In connection gap between arc section of jurisdiction.Preferably, the grouting pressure of the high-pressure slip-casting is 0.4~0.6MPa.
Further, the concrete grade of the expansive concrete is not less than the concrete etc. of precast concrete arc section of jurisdiction
Grade.
Further, it is additionally provided with protective layer coagulation on the outside of precast concrete arc section of jurisdiction and expansive concrete
Soil, thickness are not less than 20mm.Annular steel wire can be sealed in the inside of pipeline by cover concrete, and pipeline is avoided to use
It is corroded in the process, is conducive to the endurance quality for improving pipeline.
Based on same inventive concept, the invention further relates to a kind of production methods of ring orientation prestress pipeline configuration, main to wrap
Include following steps：
A, prefabricated two pieces or more of precast concrete arc section of jurisdiction, edge is provided on the lateral surface of precast concrete arc section of jurisdiction
Circumferentially extending reserved groove, steel plate is placed in the bottom of the reserved groove；The precast concrete curved pipe piece is circumferential
Both ends be respectively arranged with tenon and blind mortise, the bottom of precast concrete arc section of jurisdiction (1) blind mortise is provided with for adjusting
The thrustor (2) of spacing between two neighboring precast concrete arc section of jurisdiction (1)；
B, steel wire is circularized into circlewise steel wire according to design diameter is prefabricated；
C, two pieces or more of precast concrete arc section of jurisdiction is spliced into annular shape, annular steel wire is set in whole concretes
In the reserved groove of native arc section of jurisdiction, there is gap between adjacent two pieces of precast concrete arcs section of jurisdiction；
D, gap former is installed in the circumferential end of precast concrete arc section of jurisdiction, the gap former is clamped adjacent two simultaneously
The surfaces externally and internally of block precast concrete arc section of jurisdiction；
E, the spacing between two neighboring precast concrete arc section of jurisdiction (1) is adjusted by thrustor (2) so that annular steel wire
(3) reach scheduled prestressing force；
F, the gap mesohigh between adjacent two pieces of precast concrete arcs section of jurisdiction injects expansive concrete slurries；
G, pipeline is conserved, the prestress application of complete twin conduit, removes gap former after expansive concrete expansion.
Further, it is also had steps of after above-mentioned steps G：In precast concrete arc section of jurisdiction and expansion coagulation
Cover concrete is poured into a mould in the outside of soil, and the thickness of cover concrete is not less than 20mm, is conserved after pouring.
Beneficial effects of the present invention are：
1）, the present invention ring orientation prestress technology, may be implemented pipeline configuration precast assembly construction, using expansive concrete come
Adjacent two pieces of precast concrete arcs section of jurisdiction is connected, expansive concrete and precast concrete arc section of jurisdiction integrate, and improve
The water permeability resistance energy of pipeline.The expansion that high-pressure slip-casting uses（Seif-citing rate）Concrete, have impervious strong, early stage it is fast it is hard, after
The features such as phase intensity height, energy of resistance to sulfate.
2）, high tensile steel wire be close in the reserved groove for being looped around precast concrete arc section of jurisdiction, using auxiliary pusher and
Joint gap increases between itself dilatancy of expansive concrete makes adjacent two pieces of precast concrete arcs section of jurisdiction, forces prefabricated
Concrete arc-shaped section of jurisdiction is displaced outwardly, so that cricoid high tensile steel wire provides ring orientation prestress for pipeline, the method changes
Traditional anchorage technology, fundamentally avoids the loss of curved prestressing force.
3）, the present invention ring orientation prestress pipeline configuration, complicated steel wire stretching tool need not be used, due to two pieces with
On the diameter of a circle that surrounds of precast concrete arc section of jurisdiction be less than the diameter of annular steel wire, annular steel wire can very easily
It is placed in the reserved groove of precast concrete arc section of jurisdiction, precast concrete arc is displaced outwardly again after placing annular steel wire
Section of jurisdiction avoids to generate the gap for injecting expansive concrete and wears steel wire in the prior art（Steel strand wires）Cumbersome mistake
Journey simplifies construction, reduces cost, saves human and material resources.It is main to be the reduction of curved prestressing force loss.
Description of the drawings
Fig. 1 is the schematic diagram of a specific embodiment of ring orientation prestress pipeline configuration of the present invention；
Fig. 2 is that ring orientation prestress pipeline configuration takes out 1/2 cross section pipe schematic diagram；
Fig. 3 is ring orientation prestress pipeline configuration cross-sectional view；
Fig. 4 is the position view of precast concrete arc section of jurisdiction；
Fig. 5 is the distributing position schematic diagram of annular steel wire；
Fig. 6 is auxiliary pusher front view；
Fig. 7 is auxiliary pusher southwest isometric views；
Fig. 8 is auxiliary pusher southeast isometric views.
In figure：1, precast concrete arc section of jurisdiction, 2, thrustor, 3, annular steel wire, 4, cover concrete, 5, expansion
Concrete, 6, reserved groove, 7, gap former, 21, swing handle, 22, screw sheel built in gear, 23, steel ball idler wheel, 24,
Screw propulsion rod.
Specific implementation mode
Present invention is further described in detail below in conjunction with the accompanying drawings.
Embodiment 1
Referring to Fig. 1-8, ring orientation prestress pipeline configuration, cross-sectional structure is as shown in figures 1 and 3, including three pieces of mutually splicings
Precast concrete arc section of jurisdiction 1, the circumferential both ends in every piece of precast concrete arc section of jurisdiction 1 are respectively arranged with tenon and blind mortise,
Two neighboring precast concrete arc section of jurisdiction 1 is spliced by tenon and blind mortise, adjacent two pieces of precast concrete arcs section of jurisdiction 1
Between be expansive concrete 5, precast concrete arc section of jurisdiction 1 and expansive concrete 5 constitute a circular ring pipe together, described swollen
Swollen concrete 2 is formed by high-pressure slip-casting；The bottom of blind mortise is provided with for adjusting adjacent two pieces of precast concrete arcs section of jurisdiction 1
Between spacing thrustor 2, the spacing of adjacent two pieces of precast concrete arcs section of jurisdiction 1 can be adjusted by thrustor 2 to be made
It obtains annular steel wire 3 and forms scheduled ring orientation prestress；It is provided with reserved groove 6 on the lateral surface of precast concrete arc section of jurisdiction 1,
The annular steel wire 3 for fettering three pieces of precast concrete arc sections of jurisdiction 1, the reserved groove 6 are provided in the reserved groove 6
It can preferably be arranged multiple, so that more annular steel wires 3 are arranged on precast concrete arc section of jurisdiction 1, expansive concrete 5 is swollen
During swollen, there are increased trend, abducent precast concrete arc in the gap between contiguous prefabricated concrete arc-shaped section of jurisdiction 1
Shape section of jurisdiction 1 forms pulling force to annular steel wire 3, to generate ring orientation prestress to pipeline.It should be noted that, although the present embodiment
The middle technical solution using three pieces of precast concrete arc sections of jurisdiction 1, but the present invention can also use two pieces, four pieces or four pieces
It combines to form ring orientation prestress pipeline configuration above precast concrete arc section of jurisdiction 1.
Thrustor 2 includes swing handle 21, turnbarrel 22, ball bearing 23 and pushing ram 24, the swing handle
21 one end is located at the inside of precast concrete arc section of jurisdiction 1, and the other end is located in precast concrete arc section of jurisdiction 1 and has
There are handle bevel gear, the turnbarrel 22 that there is the sleeve bevel gear engaged with the handle bevel gear, the turnbarrel
22 are fixedly connected with the inner ring of the ball bearing 23, and the outer ring of the ball bearing 23, which is fixed, is embedded in the precast concrete
In arc section of jurisdiction 1, the pushing ram 24 is provided in the turnbarrel 22, the turnbarrel 22 and 24 screw thread of pushing ram connect
It connects, the pushing ram 24 can be for linear motion and stretching is connected to the tenon from the bottom of the blind mortise.Wherein, this field skill
Art personnel are understandable that：The rotation of axial guide groove or gib block limitation pushing ram 24, guide groove can be set on pushing ram 24
Or gib block thinks that the linear motion of pushing ram 24 is realized in cooperation with precast concrete arc section of jurisdiction 1；Turn when rotating swing handle 21
Dynamic handle 21 drives turnbarrel 22 to rotate, and the turnbarrel 22 of rotation drives pushing ram 24 to move along a straight line, and pushing ram 24 abuts
In tenon, the adjusting of 1 spacing of adjacent two pieces of precast concrete arcs section of jurisdiction is realized.
Match ratio, expanding material and the volume of expansive concrete, must all determine through overtesting.It, should be according to structure before experiment
Necessary expansion rate, speed of expansion, concrete strength and the cement and aggregate used, using constraint identical with pipeline configuration
Condition and curing condition are tested, to obtain required swelling agent type and volume, to reach the prestressing force size of design.
The ratio of mud of the expansive concrete ranging from 0.5 ~ 1.0.
The concrete grade of the expansive concrete 5 is not less than the concrete grade of precast concrete arc section of jurisdiction 1.
The high-pressure slip-casting is added to the self-stressing concretes slurries of waterproof material by special high-pressure slip casting, is filled by high pressure
Note equipment by the expansive concrete slurries high pressure for being added to waterproof material be injected into adjacent two pieces of precast concrete arcs section of jurisdiction 1 it
Between gap in, gap is filled up, meet water after（Water filling）With cross-linking reaction, great amount of carbon dioxide gas is discharged, is generated secondary
Elastomer is pressed into and is full of with secondary osmotic pressure and had the gap by osmotic pressure, high pressure thrust, reaches leak-stopping purpose.The grouting pressure is
0.4~0.6MPa.
The circumferential both ends of the surface in precast concrete arc section of jurisdiction 1 carry out cutting, kerve or wharf's pavement quality；Be conducive in this way
Improve the bonding strength of expansive concrete 5 and precast concrete arc section of jurisdiction 1.
Preferably, the length of the tenon is less than the depth of the blind mortise so that two arc sections of jurisdiction intact can contact.This
Sample can make the structural stability for enhancing pipeline under the conditions of ensureing that design is prestressed.
Preferably, the annular steel wire 3 is by welding formation ring-type or forming ring-type by anchorage.Using anchorage shape
Circlewise when steel wire, anchorage can be placed in the gap between adjacent two pieces of precast concrete arcs section of jurisdiction 1, then be inflated coagulation
Soil cladding.
Preferably, the bottom for reserving groove 6 is provided with the steel plate for accepting the annular steel wire 3.Steel plate uses thin steel
Plate bears pressure of the annular steel wire to precast concrete arc section of jurisdiction, improves annular steel wire and connects with precast concrete arc section of jurisdiction
Connect the stress concentration situation at place.The diameter of reserved groove 6 is more than the diameter of annular steel wire 3.
Embodiment 2
On the basis of embodiment 1, ring orientation prestress pipeline configuration of the invention is in precast concrete arc section of jurisdiction and swollen
Cover concrete 4 is additionally provided on the outside of swollen concrete, thickness is not less than 20mm.Cover concrete can be by cyclic annular steel
Silk is sealed in the inside of pipeline, and pipeline is avoided to be corroded in use, is conducive to the endurance quality for improving pipeline.
The present invention also provides a kind of production method of ring orientation prestress pipeline configuration, specific implementation step is as follows：
1, first, in accordance with conventional casting method and design drawing, precast concrete arc section of jurisdiction 1, precast concrete curved pipe are made
Groove 6 is reserved in the outside setting of piece 1, and the diameter for reserving groove 6 is slightly larger than the diameter of annular steel wire 3.
2, after 1 form removal of precast concrete arc section of jurisdiction, section of jurisdiction segmental arc surface residual particle or protrusion are cleared up, prefabricated
The circumferential both ends end face of concrete arc-shaped section of jurisdiction 1 carries out kerve, cutting or plucking（Increase section of jurisdiction segmental arc 1 and expansive concrete 2
Between frictional force）.
3, annular steel wire 3 is looped around in the reserved groove 6 on precast concrete arc section of jurisdiction 1, and fitted closely therewith.
4, the gap former 7 at the circumferential both ends in precast concrete arc section of jurisdiction 1 is installed, gap former 7 is clamped adjacent simultaneously
The surfaces externally and internally of two pieces of precast concrete arc sections of jurisdiction 1.
5, the spacing between two neighboring precast concrete arc section of jurisdiction 1 is adjusted by thrustor 2 so that annular steel wire
3 reach scheduled prestressing force；
6, after pushing tow reaches predetermined pre-tensioning force, the gap mesohigh injection between adjacent two pieces of precast concrete arcs section of jurisdiction is swollen
Swollen concrete, match ratio, expanding material and volume by adjusting expansive concrete make actually applied prestressing force be slightly larger than
Design prestressing force；
7, the cover concrete 4 for carrying out annular steel wire 3 pours, and cover concrete 4 is located at 1 He of precast concrete arc section of jurisdiction
The outside of expansive concrete 2 and annular in shape, wherein the thickness of cover concrete is not less than 20mm, pour complete after maintenance it is circumferential
The making of prestress pipe structure.
Ring orientation prestress pipeline configuration provided by the invention can bear very big pressure, change traditional anchorage problem, from
Fundamentally curved prestressing force is avoided to lose.The seif-citing rate that its high-pressure slip-casting used uses（Expansion）Concrete has impermeability
By force, the features such as early stage is fast hard, later strength is high, the energy of resistance to sulfate.Production method provided by the invention can realize precast assembly, apply
Work is simple, safe and reliable, extends the application field of ring orientation prestress pipeline configuration.
The embodiment of the present invention is described with above attached drawing, in the absence of conflict, the reality in the present invention
The feature applied in example and embodiment can be combined with each other.The invention is not limited in above-mentioned specific implementation mode, above-mentioned tool
Body embodiment is only schematical, rather than limitation, those skilled in the art under the inspiration of the present invention,
Without breaking away from the scope protected by the purposes and claims of the present invention, many forms can be also made, these belong to this
Within the protection domain of invention.
Claims (10)
1. a kind of ring orientation prestress pipeline configuration comprising two pieces or more of the precast concrete arc section of jurisdiction (1) mutually spliced,
It is characterized in that：Adjacent two pieces of precast concrete arcs section of jurisdiction (1) is connected by expansive concrete (5), described prefabricated
It is provided on the lateral surface of concrete arc-shaped section of jurisdiction (1) along circumferentially extending reserved groove (6), the precast concrete arc
The both ends of section of jurisdiction (1) circumferential direction are respectively arranged with tenon and blind mortise, and two neighboring precast concrete arc section of jurisdiction (1) is by convex
Tenon and blind mortise splicing；The ring orientation prestress pipeline configuration further includes having the annular steel wire being arranged in the reserved groove (6)
(3) and the thrustor (2) for adjusting spacing between two neighboring precast concrete arc section of jurisdiction (1).
2. a kind of ring orientation prestress pipeline configuration according to claim 1, which is characterized in that the precast concrete arc
The both ends of the surface of section of jurisdiction (1) circumferential direction carry out cutting, kerve or wharf's pavement quality；The length of the tenon is less than the depth of the blind mortise.
3. a kind of ring orientation prestress pipeline configuration according to claim 1, which is characterized in that the thrustor（2）Packet
Include swing handle（21）, turnbarrel（22）, ball bearing（23）And pushing ram（24）, the swing handle（21）One end position
Inside in precast concrete arc section of jurisdiction (1), the other end are located in precast concrete arc section of jurisdiction (1) and have handle
Bevel gear, the turnbarrel（22）With the sleeve bevel gear engaged with the handle bevel gear, the turnbarrel（22）
With the ball bearing（23）Inner ring be fixedly connected, the ball bearing（23）Outer ring fix be embedded in the concrete
In native arc section of jurisdiction (1), the turnbarrel（22）Inside it is provided with the pushing ram（24）, the turnbarrel（22）And propulsion
Bar（24）It is threadedly coupled, the pushing ram（24）Can it is for linear motion and from the bottom of the blind mortise stretch out be connected to it is described convex
Tenon.
4. a kind of ring orientation prestress pipeline configuration according to claim 1, which is characterized in that the reserved groove (6)
Bottom is provided with for accepting the annular steel wire（3）Steel plate.
5. a kind of ring orientation prestress pipeline configuration according to claim 1, which is characterized in that the expansive concrete (5)
The ratio of mud ranging from 0.5-1.0.
6. a kind of ring orientation prestress pipeline configuration according to claim 1, which is characterized in that the expansive concrete (5)
It is filled in by way of high-pressure slip-casting in the gap between adjacent two pieces of precast concrete arcs section of jurisdiction；Preferably, institute
The grouting pressure for stating high-pressure slip-casting is 0.4~0.6MPa.
7. a kind of ring orientation prestress pipeline configuration according to claim 1, which is characterized in that the expansive concrete (5)
Concrete grade be not less than precast concrete arc section of jurisdiction (1) concrete grade.
8. a kind of ring orientation prestress pipeline configuration according to claim 1, which is characterized in that the precast concrete arc
Cover concrete (4) is additionally provided on the outside of section of jurisdiction (1) and expansive concrete (5), thickness is not less than 20mm.
9. a kind of production method of ring orientation prestress pipeline configuration, which is characterized in that include the following steps：
A, prefabricated two pieces or more of precast concrete arc section of jurisdiction (1), sets on the lateral surface of precast concrete arc section of jurisdiction (1)
It is equipped with along circumferentially extending reserved groove (6), steel plate, the precast concrete is placed in the bottom of the reserved groove (6)
The both ends of arc section of jurisdiction (1) circumferential direction are respectively arranged with tenon and blind mortise, the bottom of precast concrete arc section of jurisdiction (1) blind mortise
Portion is provided with the thrustor (2) for adjusting spacing between two neighboring precast concrete arc section of jurisdiction (1)；
B, steel wire is circularized into circlewise steel wire (3) according to design diameter is prefabricated；
C, two pieces or more of precast concrete arc section of jurisdiction (1) is spliced into annular shape, annular steel wire (3) is set in whole pre-
In the reserved groove (6) of concrete arc-shaped section of jurisdiction (1) processed, there is gap between adjacent two pieces of precast concrete arcs section of jurisdiction (1)；
D, in the circumferential end installation gap former (7) of precast concrete arc section of jurisdiction (1), the gap former (7) is simultaneously
The surfaces externally and internally of adjacent two pieces of precast concrete arcs section of jurisdiction (1) is clamped；
E, the spacing between two neighboring precast concrete arc section of jurisdiction (1) is adjusted by thrustor (2) so that annular steel wire
(3) reach scheduled prestressing force；
F, the gap mesohigh between adjacent two pieces of precast concrete arcs section of jurisdiction (1) injects expansive concrete slurries；
G, pipeline is conserved, the prestress application of complete twin conduit, removes gap former (7) after expansive concrete expansion.
10. a kind of production method of ring orientation prestress pipeline configuration according to claim 9, which is characterized in that above-mentioned
It is also had steps of after step G：In precast concrete arc section of jurisdiction (1) and the cast protection of the outside of expansive concrete (5)
The thickness of layer concrete (4), cover concrete (4) is not less than 20mm, is conserved after pouring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810706850.1A CN108729346B (en) | 2018-07-02 | 2018-07-02 | Circumferential prestress pipeline structure and manufacturing method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810706850.1A CN108729346B (en) | 2018-07-02 | 2018-07-02 | Circumferential prestress pipeline structure and manufacturing method thereof |
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| CN108729346A true CN108729346A (en) | 2018-11-02 |
| CN108729346B CN108729346B (en) | 2023-05-26 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112647971A (en) * | 2020-12-24 | 2021-04-13 | 陕西国防工业职业技术学院 | BIM subway section of jurisdiction convenient to concatenation |
| CN113073995A (en) * | 2021-03-30 | 2021-07-06 | 深圳大学 | Self-resetting prestressed pipe piece structure and assembling method thereof |
| CN117249312A (en) * | 2023-08-23 | 2023-12-19 | 保定市水泥制管有限公司 | Permeation-proof concrete pipeline and production process thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112647971A (en) * | 2020-12-24 | 2021-04-13 | 陕西国防工业职业技术学院 | BIM subway section of jurisdiction convenient to concatenation |
| CN113073995A (en) * | 2021-03-30 | 2021-07-06 | 深圳大学 | Self-resetting prestressed pipe piece structure and assembling method thereof |
| CN113073995B (en) * | 2021-03-30 | 2021-12-07 | 深圳大学 | Self-resetting prestressed pipe piece structure and assembling method thereof |
| CN117249312A (en) * | 2023-08-23 | 2023-12-19 | 保定市水泥制管有限公司 | Permeation-proof concrete pipeline and production process thereof |
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| CN108729346B (en) | 2023-05-26 |
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