CN110685343A - Prefabricated built-in light filling body concrete pipe ring and prefabricating method - Google Patents
Prefabricated built-in light filling body concrete pipe ring and prefabricating method Download PDFInfo
- Publication number
- CN110685343A CN110685343A CN201910917354.5A CN201910917354A CN110685343A CN 110685343 A CN110685343 A CN 110685343A CN 201910917354 A CN201910917354 A CN 201910917354A CN 110685343 A CN110685343 A CN 110685343A
- Authority
- CN
- China
- Prior art keywords
- pipe ring
- filling body
- concrete
- steel
- fiber
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- 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
-
- 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
- B28B21/02—Methods or machines specially adapted for the production of tubular articles by casting into moulds
- B28B21/04—Methods or machines specially adapted for the production of tubular articles by casting into moulds by simple casting, the material being neither positively compacted nor forcibly fed
-
- 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
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/10—Tunnels or galleries specially adapted to house conduits, e.g. oil pipe-lines, sewer pipes ; Making conduits in situ, e.g. of concrete ; Casings, i.e. manhole shafts, access or inspection chambers or coverings of boreholes or narrow wells
Abstract
The invention relates to a prefabricated concrete pipe ring with a built-in light filling body and a prefabricating method, which are applied to underground engineering constructed by adopting a prefabricated assembly method, and the prefabricated concrete pipe ring comprises a pipe ring framework, the light filling body arranged in the pipe ring framework and a pipe ring body formed by layered pouring, wherein the pipe ring framework comprises a framework main body consisting of a plurality of annular main ribs and a plurality of stirrups for binding the framework main body, and the light filling body is arranged in an annular cavity formed by the framework main body and the stirrups and is fixed on the main ribs through hooks.
Description
Technical Field
The invention relates to the technical field of civil engineering, in particular to a prefabricated built-in lightweight filling body concrete pipe ring and a prefabricating method.
Background
Based on the characteristics of good mechanical property and economy of reinforced (fiber) concrete materials, the prefabricated pipe ring is adopted as underground engineering of a bearing structure and is mainly applied to municipal pipelines, underground passages, underground pipe galleries and the like, and the most common pipe ring is a reinforced (fiber) concrete pipe ring. Reinforced concrete pipe ring of steel (fibre) generally is that the entity is whole to water to cause the pipe ring dead weight great, assemble and receive great restriction with pipe ring size, and then cause unit length tunnel pipe ring joint more, not only influence the structure atress, moreover because the seam is numerous, increased the risk of tunnel percolating water among the operation process, consequently the tunnel is assembled and is needed optimization and improvement with reinforced concrete pipe ring of steel (fibre) urgent need. Meanwhile, cracks generated in the pipe ring construction and operation process can reduce the bearing capacity of the pipe ring structure and influence the durability of the pipe ring structure, and fibers are doped into the concrete structure, so that the crack resistance of the concrete structure can be better improved, and the risk of the generation of the cracks of the pipe ring structure is reduced. The reinforcing quantity of the tunnel pipe ring structure is large, and the pipe ring is difficult to pour frequently.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a prefabricated built-in lightweight filling body concrete pipe ring and a prefabricating method.
The purpose of the invention can be realized by the following technical scheme:
the utility model provides a prefabricated built-in light obturator concrete pipe ring, is applied to the underground works who adopts the prefabricated construction of piecing together method, includes pipe ring skeleton, sets up the light obturator and the layering of pipe ring skeleton in the pipe ring skeleton and pours fashioned pipe ring body, the pipe ring skeleton include the skeleton main part of constituteing by many annular main muscle and many the stirrup that are used for ligature skeleton main part constitute, the light obturator set up in the annular cavity that skeleton main part and stirrup enclose to fix on main muscle through the couple.
The prefabricated built-in lightweight filler concrete pipe ring is a steel/fiber reinforced concrete pipe ring, a fiber reinforced concrete pipe ring or a fiber concrete pipe ring, wherein steel/fiber bars in the steel/fiber reinforced concrete pipe ring and the fiber reinforced concrete pipe ring are pipe piece stress steel/fiber bars, and the steel/fiber bars in the fiber concrete pipe ring are construction steel/fiber bars for fixing the lightweight filler through hooks.
The light filling body accounts for more than 20% of the volume of the pipe ring, and the distance from the outer surface of the light filling body to the outer boundary of the pipe ring meets the requirements of pipe piece stress and the thickness of a reinforcing steel bar protection layer.
The light filling body is a porous medium structure with a streamline outer surface, and the density of the light filling body is less than that of the pipe ring body.
When the brittle material is used as the built-in material of the light-weight filling body, the toughness material is coated outside the built-in material, and the flexibility of the built-in brittle material is ensured.
When the light filling body is not required to avoid the embedded parts corresponding to the pipe rings, the light filling body is of an annular structure, and when the light filling body is required to avoid the embedded parts corresponding to the pipe rings, the light filling body is of a segmented structure on the same ring.
The cross section of the prefabricated built-in light filling body concrete pipe ring is in a circular, round-corner rectangular or rectangular form.
The doped fiber in the concrete formed by pouring the pipe ring body adopts steel fiber and synthetic fiber, the steel fiber is carbon steel fiber, low alloy steel fiber or stainless steel fiber, the synthetic fiber is polyacrylonitrile fiber, polypropylene fiber, polyamide fiber or polyvinyl alcohol fiber, and the pipe piece framework material is reinforcing steel bar or fiber rib.
The pipe ring framework adopts steel bars or fiber bars.
A prefabricating method for prefabricating a concrete pipe ring with a built-in light filling body comprises the following steps:
1) binding a pipe ring framework;
2) placing a light filling body in the process of binding the pipe ring framework;
3) the position of the light filling body is fixed by accurately positioning the hook, so that the bearing capacity and the durability of the pipe ring cannot be influenced by the implantation of the light filling body;
4) pouring and prefabricating a concrete pipe ring with a built-in light filler by adopting commercial concrete;
5) and (5) demolding, maintaining and prefabricating the concrete pipe ring with the built-in light filler.
Compared with the prior art, the invention has the following advantages:
the concrete pipe ring with the prefabricated built-in light filler is obtained by placing the light filler in the concrete pipe ring to replace concrete; through the accurate positioning of the light filling body, the light filling body is ensured to be placed into the concrete pipe ring, the bearing capacity and the durability of the concrete pipe ring cannot be influenced, the method can reduce the self weight of the pipe ring, the size of the prefabricated pipe ring is increased, the convenience of pipe ring construction is improved, the construction efficiency can be effectively improved, raw materials are saved, the construction cost is saved, the resource loss is reduced, green construction is realized, the environmental influence is reduced, the thickness of the pipe ring is continuously increased along with the increase of the load caused by the increase of the tunnel excavation section, and therefore the research and development of the concrete pipe ring with the built-in light filling body have important theoretical significance and practical value.
Drawings
FIG. 1 is a cross-sectional structural view of a prefabricated concrete pipe ring with a built-in lightweight filler.
Fig. 2 is a structural view of a reinforced concrete pipe ring of steel (fiber) at a section 1-1 in fig. 1.
Fig. 3 is a structural view of a fiber reinforced (fiber) reinforced concrete pipe ring of the section 1-1 in fig. 1.
Fig. 4 is a structural view of a fiber concrete pipe ring of the section 1-1 in fig. 1.
Detailed Description
The invention is described in detail below with reference to the figures and specific embodiments.
Examples
The invention provides a prefabricated built-in light weight filling body concrete pipe piece and a prefabricating method.
The structure of the prefabricated concrete pipe ring with the built-in light filling body is shown in figures 1-4 and comprises a pipe ring framework, the light filling body arranged in the pipe ring framework and a pipe ring body which is formed by pouring in a layered mode, wherein the pipe ring framework comprises a framework main body consisting of a plurality of annular main reinforcements and a plurality of stirrups used for binding the framework main body, and the light filling body is arranged in a cavity formed by the framework main body and the stirrups and fixed on the main reinforcements through hooks.
The prefabricated built-in lightweight filler concrete pipe ring can be made of steel (fiber) concrete, fiber steel (fiber) concrete or fiber concrete; the reinforced concrete pipe ring adopts a classic steel (fiber) bar and concrete mechanics calculation mode; the invention relates to a fiber reinforced concrete (fiber) pipe ring, which considers the joint stress of fiber and steel (fiber) bar, the amount of steel (fiber) bar arranged in the pipe ring can be effectively reduced, and the fiber reinforced concrete pipe ring completely adopts fiber to replace the steel (fiber) bar.
The distance from the outer surface of the light filling body to the outer boundary of the corresponding pipe ring meets the requirements of pipe ring stress and the thickness of a steel bar protection layer, the positioning of the light filling body ensures the thickness of the protection layer of the pipe ring steel bar, the durability of the pipe ring structure is not influenced, the volume of the light filling body accounts for more than 20% of the volume of the pipe ring, the consumption of concrete is effectively reduced, and the quality is reduced.
The appearance of the light filling body needs to consider the internal structure characteristics of the pipe ring, needs to avoid the embedded part corresponding to the pipe ring, and can be placed in a complete light filling body ring or the light filling body of the same ring in a segmented mode according to needs.
In addition, the appearance and the positioning of the light filling body are required to ensure that the bearing capacity of the pipe ring is not obviously influenced, the streamline type convenient for concrete pouring is adopted, and the built-in light filling body increases the heat dissipation area of the concrete and reduces the volume of the concrete, so that the pipe ring cracks possibly caused by the hydration heat of the large-volume concrete are reduced.
The hooks used for positioning the light filling body have enough strength and toughness, and the light filling body is prevented from deviating in the concrete pouring process.
The built-in light filling body is made of porous media, the material source is reliable, the cost performance is high, and the density is far less than that of a concrete material. When the built-in light filling body is made of brittle materials, the material should be wrapped with a tough material to ensure the flexibility of the built-in filling body, and the material for making the light filling body cannot generate adverse effects on the environment in the tunnel operation process.
The brittle materials adopted in the embodiment refer to bricks, tiles, stones, concrete, glass and the like, and have the characteristics of high compressive strength, difficulty in bearing tensile force, no plastic deformation after stress and brittle fracture when being damaged; the adopted toughness material is a plastic material, has the characteristic of high tensile strength, but can generate plastic deformation after being stressed, such as: metal materials, rubber, polymer materials, and the like.
Because the light filling body can obviously reduce the average density of the pipe rings, the size of the pipe rings can be increased by combining the construction capability of the current tunnel construction mechanical equipment, the number of the pipe rings in unit length is reduced, the number of the joints of the pipe rings in the tunnel in unit length is reduced, and the risk of water leakage of the joints of the tunnel is reduced.
In the embodiment, the cross section of the prefabricated built-in light weight filling body concrete segment can adopt the forms of a circle, a rounded rectangle, a quasi-rectangle and the like according to the stress characteristics and the space utilization condition.
The prefabricated built-in lightweight filler concrete segment is characterized in that fibers are doped into poured concrete, the fibers can be steel fibers (including carbon steel fibers, low alloy steel fibers, stainless steel fibers and the like) and synthetic fibers (including polyacrylonitrile fibers, polypropylene fibers, polyamide fibers, polyvinyl alcohol fibers and the like) which are common non-toxic fibers in fiber concrete, the fiber doping amount in the concrete needs to consider the stress requirement besides the requirement of controlling the crack of the concrete of a pipe ring, the reinforcement amount of a steel (fiber) rib framework is correspondingly reduced, and the binding of steel (fiber) ribs is facilitated.
The pipe ring framework can be made of materials meeting the stress requirements, such as reinforcing steel bars, fiber ribs and the like.
The design method of the prefabricated built-in lightweight filling body concrete pipe ring can be realized through the following steps:
(1) binding a pipe ring steel (fiber) rib framework;
(2) the light filling body is arranged in the process of binding the pipe ring steel (fiber) rib framework;
(3) the light filling body hook is accurately positioned, so that the bearing capacity and the durability of the pipe ring cannot be influenced by the implantation of the light filling body;
(4) prefabricating a concrete pipe ring with a built-in light filling body by using commercial concrete;
(5) and (5) demolding, maintaining and prefabricating the concrete pipe ring with the built-in light filler.
Claims (10)
1. The utility model provides a prefabricated built-in light obturator concrete pipe ring, is applied to the underground works who adopts the construction of prefabricated concatenation method, a serial communication port, including pipe ring skeleton, the light obturator of setting in the pipe ring skeleton and the fashioned pipe ring body of layering pouring, the pipe ring skeleton include the skeleton main part of constituteing by many annular main muscle and many the stirrup that are used for ligature skeleton main part constitute, the light obturator set up in the annular cavity that skeleton main part and stirrup enclose to fix on main muscle through the couple.
2. The prefabricated built-in lightweight filler concrete pipe ring according to claim 1, wherein the prefabricated built-in lightweight filler concrete pipe ring is a steel/fiber reinforced concrete pipe ring, a fiber steel/fiber reinforced concrete pipe ring or a fiber concrete pipe ring, wherein the steel/fiber bars in the steel/fiber reinforced concrete pipe ring and the fiber steel/fiber reinforced concrete pipe ring are segment stressed steel/fiber bars, and the steel/fiber bars in the fiber concrete pipe ring are construction steel/fiber bars for fixing the lightweight filler by hooks.
3. The prefabricated built-in lightweight filling body concrete pipe ring according to claim 1, wherein the lightweight filling body accounts for more than 20% of the volume of the pipe ring, and the distance from the outer surface of the lightweight filling body to the outer boundary of the pipe ring meets the requirements of pipe piece stress and the thickness of a steel bar protection layer.
4. The prefabricated built-in lightweight filling body concrete pipe ring according to claim 1, wherein the lightweight filling body is a porous medium structure with a streamline outer surface, and the density of the lightweight filling body is less than that of the pipe ring body.
5. The prefabricated lightweight concrete filled pipe ring as claimed in claim 4, wherein when a brittle material is used as the internal material of the lightweight concrete filled pipe, the internal material is coated with a tough material and the flexibility of the internal brittle material is ensured.
6. The prefabricated concrete pipe ring with the built-in light weight filling body according to claim 1, wherein the light weight filling body is of an annular structure when the light weight filling body does not need to avoid an embedded part corresponding to the pipe ring, and is of a segmented structure on the same ring when the light weight filling body needs to avoid the embedded part corresponding to the pipe ring.
7. The prefabricated lightweight concrete filled inner tube ring as claimed in claim 1, wherein the cross-sectional shape of the prefabricated lightweight concrete filled inner tube ring is circular, rectangular with rounded corners and rectangular.
8. The prefabricated built-in lightweight filler concrete pipe ring according to claim 1, wherein the doped fibers in the concrete formed by pouring the pipe ring body are steel fibers and synthetic fibers, the steel fibers are carbon steel fibers, low alloy steel fibers or stainless steel fibers, the synthetic fibers are polyacrylonitrile fibers, polypropylene fibers, polyamide fibers or polyvinyl alcohol fibers, and the pipe piece framework material is steel bars or fiber bars.
9. The prefabricated built-in lightweight filling body concrete pipe ring according to claim 1, wherein the pipe ring framework is made of steel bars or fiber bars.
10. A prefabricating method for prefabricating a concrete pipe ring with a built-in light filling body is characterized by comprising the following steps:
1) binding a pipe ring framework;
2) placing a light filling body in the process of binding the pipe ring framework;
3) the position of the light filling body is fixed by accurately positioning the hook, so that the bearing capacity and the durability of the pipe ring cannot be influenced by the implantation of the light filling body;
4) pouring and prefabricating a concrete pipe ring with a built-in light filler by adopting commercial concrete;
5) and (5) demolding, maintaining and prefabricating the concrete pipe ring with the built-in light filler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910917354.5A CN110685343A (en) | 2019-09-26 | 2019-09-26 | Prefabricated built-in light filling body concrete pipe ring and prefabricating method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910917354.5A CN110685343A (en) | 2019-09-26 | 2019-09-26 | Prefabricated built-in light filling body concrete pipe ring and prefabricating method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110685343A true CN110685343A (en) | 2020-01-14 |
Family
ID=69110437
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910917354.5A Pending CN110685343A (en) | 2019-09-26 | 2019-09-26 | Prefabricated built-in light filling body concrete pipe ring and prefabricating method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110685343A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111501960A (en) * | 2020-04-28 | 2020-08-07 | 广东德泽建设工程有限公司 | Prefabricated installation construction method of gap type drainage ditch based on PVC pipe inner sleeve air bag core mold |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202578707U (en) * | 2011-12-29 | 2012-12-05 | 姚宪平 | Composite cavity member |
| WO2017081990A1 (en) * | 2015-11-11 | 2017-05-18 | 鹿島建設株式会社 | Precast structure, and construction method for underground structures |
| CN207260190U (en) * | 2017-09-30 | 2018-04-20 | 沈阳建筑大学 | A kind of assembled underground pipe gallery splits structure |
| CN108119166A (en) * | 2017-12-15 | 2018-06-05 | 西南交通大学 | Across the large-scale activity fracture belt tunnel prefbricated tunnel lining structure in meizoseismal area and tunnel |
| CN207989041U (en) * | 2018-01-30 | 2018-10-19 | 中交公路长大桥建设国家工程研究中心有限公司 | Assembled ultra-high performance concrete duct pieces of shield tunnel |
| CN209179261U (en) * | 2018-10-10 | 2019-07-30 | 胡永琴 | Structural steelwork precast concrete composite integrated partition wall |
-
2019
- 2019-09-26 CN CN201910917354.5A patent/CN110685343A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202578707U (en) * | 2011-12-29 | 2012-12-05 | 姚宪平 | Composite cavity member |
| WO2017081990A1 (en) * | 2015-11-11 | 2017-05-18 | 鹿島建設株式会社 | Precast structure, and construction method for underground structures |
| CN207260190U (en) * | 2017-09-30 | 2018-04-20 | 沈阳建筑大学 | A kind of assembled underground pipe gallery splits structure |
| CN108119166A (en) * | 2017-12-15 | 2018-06-05 | 西南交通大学 | Across the large-scale activity fracture belt tunnel prefbricated tunnel lining structure in meizoseismal area and tunnel |
| CN207989041U (en) * | 2018-01-30 | 2018-10-19 | 中交公路长大桥建设国家工程研究中心有限公司 | Assembled ultra-high performance concrete duct pieces of shield tunnel |
| CN209179261U (en) * | 2018-10-10 | 2019-07-30 | 胡永琴 | Structural steelwork precast concrete composite integrated partition wall |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111501960A (en) * | 2020-04-28 | 2020-08-07 | 广东德泽建设工程有限公司 | Prefabricated installation construction method of gap type drainage ditch based on PVC pipe inner sleeve air bag core mold |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102392510A (en) | Preparation method of PVC-FRP pipe steel-reinforced concrete composite column | |
| CN111424971B (en) | TRE (tree splicing type permanent cylindrical template) and manufacturing method thereof | |
| CN101303095B (en) | Reinforced concrete and glass fiber reinforced plastic sand inclusion composite pipes and molding process thereof | |
| CN110685343A (en) | Prefabricated built-in light filling body concrete pipe ring and prefabricating method | |
| CN110744677A (en) | Prefabricated built-in light filling body concrete segment and prefabricating method | |
| CN206928519U (en) | A kind of reinforced concrete combination post | |
| CN208718220U (en) | A kind of profile steel concrete column using GFRP tendons | |
| CN212561486U (en) | FRP composite pile prepared by FRP composite material | |
| CN110685344A (en) | Prefabricated hollow concrete pipe ring and prefabricating method | |
| CN201621381U (en) | Prestressed concrete and glass fiber reinforced plastic composite pipe | |
| CN210069158U (en) | Glass fiber reinforced plastic bell mouth concrete top pipe | |
| CN111945712A (en) | FRP composite pile prepared by FRP composite material and preparation and pile forming methods | |
| CN105781016A (en) | Cement-based composite and steel pipe combined compound column and manufacturing method thereof | |
| CN201943186U (en) | FRP pipe-RPC-steel pipe combined member | |
| CN211368685U (en) | Stability tubular pile for geotechnical engineering | |
| CN106968374A (en) | Fiber knitted net concrete and hung curtain wall and preparation method thereof | |
| CN110593897A (en) | Prefabricated hollow concrete segment and prefabricating method | |
| CN208670307U (en) | A kind of prefabricated high-strength tubulose stiffness body of green | |
| CN207110155U (en) | Fiber knitted net concrete and hung curtain wall | |
| CN208268567U (en) | A kind of glass reinforced plastic composite concrete push pipe | |
| CN215568563U (en) | Prefabricated pipe of ultra high performance concrete | |
| CN207193953U (en) | A kind of reinforced concrete tubular pile of outer rim | |
| CN105776977A (en) | Cement-based composite restraint concrete compound column and manufacture method thereof | |
| CN110805028A (en) | FRP elastic composite pile and manufacturing method thereof | |
| CN214272133U (en) | Retarded-bonding prestressed FRP bundle steel cylinder concrete pipeline |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200114 |