CN114893219A - Pipe joint assembly, pipe curtain and box culvert replacement pipe curtain construction method - Google Patents
Pipe joint assembly, pipe curtain and box culvert replacement pipe curtain construction method Download PDFInfo
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- CN114893219A CN114893219A CN202210584202.XA CN202210584202A CN114893219A CN 114893219 A CN114893219 A CN 114893219A CN 202210584202 A CN202210584202 A CN 202210584202A CN 114893219 A CN114893219 A CN 114893219A
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- pipe
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- box culvert
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/14—Lining predominantly with metal
- E21D11/15—Plate linings; Laggings, i.e. linings designed for holding back formation material or for transmitting the load to main supporting members
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/003—Linings or provisions thereon, specially adapted for traffic tunnels, e.g. with built-in cleaning devices
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/04—Lining with building materials
- E21D11/10—Lining with building materials with concrete cast in situ; Shuttering also lost shutterings, e.g. made of blocks, of metal plates or other equipment adapted therefor
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- Mining & Mineral Resources (AREA)
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Abstract
The invention relates to the technical field of underground passage non-excavation construction, in particular to a pipe joint assembly, a pipe curtain and a box culvert pipe curtain replacement construction method, wherein the pipe joint assembly comprises a fastener, a polygonal prism-shaped pipe joint body and an antifriction plate which is attached to the outer side surface of the pipe joint body contacted with a soil body, the side wall of the pipe joint body attached to the antifriction plate is provided with a fastener mounting hole, the fastener is arranged in the fastener mounting hole in a penetrating manner, so that the pipe joint body is detachably connected with the antifriction plate, when the box culvert pushes the pipe joint body, the fastener is detached from the fastener mounting hole, grouting is carried out in the fastener mounting hole, the slurry flows through a plurality of splitter boxes communicated with a first grouting hole, the splitter boxes disperse the slurry to the attachment surface of the antifriction plate and the pipe joint body, so that the friction force between the antifriction plate and the pipe joint body can be reduced, the construction requirements of an underground passage can be met, and, utilize the fastener mounting hole as the injected hole, need not additionally set up the injected hole on the tube coupling body again, guaranteed the intensity of tube coupling body.
Description
Technical Field
The invention relates to the technical field of underground passage non-excavation construction, in particular to a pipe joint assembly, a pipe curtain and a box culvert replacement pipe curtain construction method.
Background
The pipe curtain construction method is one of underground passage non-excavation construction technologies, has small influence on the surrounding environment and buildings during construction, can well control surface subsidence, ensures the safety and reliability of an upper structure, and has strong advantages in tunnel engineering such as shallow-buried large sections for penetrating existing buildings, structures, rivers and urban highways in urban underground space engineering. The box culvert replacement pipe curtain construction method is an improvement of the pipe curtain construction method, and has the advantages of small section size limitation, small environmental disturbance, equipment and material reutilization, high mechanization degree and the like.
In the box culvert pipe curtain replacement method, a friction reducing plate is detachably connected to the side surface, which is in contact with the soil body, of the outer side of a pipe joint, and a pipe curtain machine sequentially pushes a plurality of pipe joints and the friction reducing plate to synchronously enter the soil body; after each pipe joint and the antifriction plate are pushed in place, the screws are removed, then the box culvert is pushed by using the box culvert pushing device, the box culvert pushes the pipe joints, so that the pipe joints and the antifriction plate slide relatively, and the pipe joints are ejected out of the soil body. In the relative sliding process of the pipe joint and the antifriction plate, the friction force between the contact surfaces of the antifriction plate and the pipe joint is large, so that the resistance for pushing out the pipe joint is large, and the construction requirement of an underground passage is difficult to meet.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the pipe joint of the existing pipe joint assembly has large friction resistance in the relative sliding process of the anti-friction plate, and is difficult to meet the construction requirements of an underground passage.
In order to solve the technical problems, the invention aims to provide a pipe joint assembly which comprises a fastener, a polygonal-prism-shaped pipe joint body and a friction reducing plate attached to the outer side surface of the pipe joint body, wherein the outer side surface of the pipe joint body is in contact with a soil body;
and the outer side surface of the pipe joint body attached to the antifriction plate is provided with a plurality of splitter boxes, and each splitter box is communicated with the fastener mounting hole.
As a preferred scheme, the pipe joint body with the lateral wall that antifriction board was laminated is equipped with the perpendicular to the first through-hole that antifriction board arranged, the antifriction board is equipped with the second through-hole, first through-hole with the second through-hole intercommunication.
Preferably, each of the diversion channels is arranged in a scattering manner with the fastener mounting hole as a center.
The utility model provides a pipe curtain, includes a plurality of foretell pipe coupling subassemblies, the pipe coupling subassembly has a plurality ofly, each the equal level of pipe coupling subassembly is inserted and is established in the soil body, each the lateral wall of the pipe coupling body of pipe coupling subassembly laminates the concatenation in proper order and forms door type bearing structure or closed loop type bearing structure, each antifriction board splices in proper order and the cladding is in door type bearing structure or closed loop type bearing structure's the outside.
As a preferred scheme, the first buckling mechanisms are arranged at the splicing surfaces of the two adjacent pipe joint bodies and comprise first clamping grooves and first protrusions, the first clamping grooves are parallel to the axial arrangement of the pipe joint bodies, the first clamping grooves are arranged at the outer side surfaces of one of the two adjacent pipe joint bodies, and the first protrusions are arranged at the outer side surfaces of the other of the two adjacent pipe joint bodies.
Preferably, one or two of the two adjacent pipe joint bodies are provided with a second grouting hole, and the second grouting hole penetrates through the side wall of the pipe joint body so as to introduce resistance reducing slurry to the splicing surfaces of the two adjacent pipe joint bodies.
Preferably, the second clamping mechanisms are arranged on the splicing surfaces of the two adjacent friction reducing plates and comprise T-shaped grooves and T-shaped protrusions, the T-shaped grooves are parallel to the axial direction of the pipe joint body and are arranged on the end face of one of the two adjacent friction reducing plates, and the T-shaped protrusions are arranged on the end face of the other of the two adjacent pipe joint bodies.
A construction method for replacing a pipe curtain by a box culvert, wherein the pipe curtain is the pipe curtain, comprises the following steps,
step S1, digging an initial well and a receiving well at the two ends of the tunnel;
step S2, installing a pipe curtain machine in the originating well, jacking a pipe joint assembly by using the pipe curtain machine, and grouting between the friction reducing plate and the contact surface of the soil body through the first through hole and the second through hole;
s3, removing fasteners in the fastener mounting holes, and mounting a box culvert propelling machine in the originating well to construct a box culvert;
step S4, jacking the box culvert by using the box culvert propelling machine, and grouting to the joint surface of the pipe joint body and the friction plate by using the fastener mounting hole;
and step S5, removing the pipe joint body and the soil body pushed out to the receiving well.
Preferably, the step S2 further includes using a second grouting hole to perform grouting on the abutting surface between two adjacent pipe joint bodies.
Preferably, in step S2, when the pipe joint assembly is pushed in, a T-shaped strip attached to an inner side surface of the T-shaped groove is inserted into the T-shaped groove of the friction reducing plate.
Compared with the prior art, the invention has the beneficial effects that:
the pipe joint assembly comprises a fastener, a polygonal-prism-shaped pipe joint body and a friction reducing plate which is attached to the outer side surface of the pipe joint body, which is contacted with a soil body, wherein the side wall of the pipe joint body, which is attached to the friction reducing plate, is provided with a fastener mounting hole, the fastener is arranged in the fastener mounting hole in a penetrating manner, thereby realizing the detachable connection between the pipe joint body and the antifriction plate, when the box culvert pushes the pipe joint body, the fastener is detached from the fastener mounting hole, grouting is carried out in the fastener mounting hole, the slurry flows through a plurality of splitter boxes communicated with the first grouting hole, the splitter boxes disperse the slurry to the joint surface of the antifriction plate and the pipe joint body, the friction force between the antifriction plate and the pipe joint body can be reduced, the construction requirement of an underground passage is met, moreover, the fastener mounting holes are used as grouting holes, and the grouting holes do not need to be additionally arranged on the pipe joint body, so that the strength of the pipe joint body is ensured.
Drawings
FIG. 1 is a cross-sectional view of a first form of a tube segment assembly according to the present embodiment;
FIG. 2 is a cross-sectional view of a second form of the tube segment assembly of the present embodiment;
FIG. 3 is an isometric view of a second form of a pipe section assembly;
FIG. 4 is a front view of a first form of diverter trough;
FIG. 5 is a front view of a second form of diverter trough;
FIG. 6 is a front view of a third form of diverter trough;
FIG. 7 is a cross-sectional view of the friction reducing plate in the longitudinal direction of the underground passageway when the friction reducing plate is fixedly connected to the pipe joint body;
FIG. 8 is a cross-sectional view of the friction reducing plate sliding relative to the coupling body, taken along the longitudinal direction of the underground passageway;
FIG. 9 is a schematic view of the tube sheet in a square configuration;
FIG. 10 is a schematic view of the tube sheet in a door-shaped configuration;
FIG. 11 is a cross-sectional view of the pipe section assembly being advanced by the pipe curtain machine in the longitudinal direction of the underground passageway;
figure 12 is a cross-sectional view taken longitudinally along the underground passageway when the box culvert pusher is pushing box culverts;
FIG. 13 is a schematic structural view of a box culvert;
figure 14 is a schematic view of the box culvert after jacking below the friction reducing plates;
in the figure, 1, a pipe joint assembly; 11. a fastener; 12. a pipe section body; 121. a fastener mounting hole; 122. a shunt slot; 123. a first through hole; 124. a second grouting hole; 13. a friction reducing plate; 131. a second through hole; 21. a first card slot; 22. a first boss portion; 31. a T-shaped groove; 32. t-shaped bulges; 4. an originating well; 5. a receiving well; 6. a pipe curtain machine; 7. a box culvert pusher; 8. and (6) box culvert construction.
Detailed Description
The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", "top", "bottom", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. It should be understood that the terms "first", "second", etc. are used herein to describe various information, but the information should not be limited to these terms, which are only used to distinguish one type of information from another. For example, "first" information may also be referred to as "second" information, and similarly, "second" information may also be referred to as "first" information, without departing from the scope of the present invention.
As shown in fig. 1 to 6, a preferred embodiment of a pipe joint assembly of the present invention includes a fastening member 11, a pipe joint body 12 in a polygonal prism shape, and a friction reducing plate 13 attached to an outer side surface of the pipe joint body 12 contacting with a soil body, wherein fastening member mounting holes 121 are formed in side walls of the pipe joint body 12 attached to the friction reducing plate 13, the fastening member 11 is inserted into the fastening member mounting hole 121, so that the friction reducing plate 13 can be fixedly connected to the pipe joint body 12, and the friction reducing plate can be detachably connected to the pipe joint body, and after the fastening member 11 is removed from the fastening member mounting hole 121, the fastening member mounting hole 121 forms a first grouting hole for flowing a resistance reducing slurry into between the attachment surfaces of the friction reducing plate 13 and the pipe joint body 12; the lateral surface of the pipe joint body 12 attached to the antifriction plate 13 is provided with a plurality of splitter boxes 122, and each splitter box 122 is communicated with the fastener mounting hole 121. When the box culvert promotes the tube coupling body, demolish the fastener from the fastener mounting hole, to the downthehole slip casting of fastener mounting, the thick liquid passes through a plurality of splitter boxes 122, and the dispersion is to the binding face department of antifriction board and tube coupling body, can reduce the frictional force between antifriction board and the tube coupling body, satisfies the longer underground passage's of length construction requirement, and in addition, utilize the fastener mounting hole to act as the slip casting hole, need not set up the slip casting hole again on the tube coupling body additionally, guaranteed the intensity of tube coupling body.
Wherein, fastener mounting hole 121 is equipped with the chamfer with the relative one end of subtracting template 13, the setting of chamfer is convenient for the thick liquid to flow in each splitter box 122, the type of splitter box 122 is as shown in fig. 4 to 6, each splitter box 122 all uses fastener mounting hole 121 to be the scattering form and arranges as the center, splitter box 122 can promote the thick liquid diffusion, splitter box 122 can be when the tube coupling body is made milling cutter fluting processing, specifically, in this embodiment, tube coupling body 12 is the cyclic annular of rectangle and arranges, fastener 11 is high strength bolt, screw up and dismantle through high strength bolt and realize reducing being connected and separating between friction plate 12 and the tube coupling body, the later stage box culvert replacement construction operation of being convenient for steadily impels.
The side wall that tube coupling body 12 and antifriction board 13 were laminated mutually is equipped with the first through-hole 123 that the perpendicular to antifriction board 13 was arranged, and antifriction board 13 is equipped with second through-hole 131, and first through-hole 123 and second through-hole 131 communicate. The first through hole 123 and the second through hole 131 are communicated to form a third grouting hole, when the pipe joint assembly is pushed into a soil body, grouting is conducted on a joint between the friction reducing plate and the soil body through the third grouting hole, friction force between the friction reducing plate and the soil body can be reduced, the pipe joint assembly is conveniently pushed into the soil body, and disturbance to the soil body when the pipe joint assembly is pushed can be reduced.
As shown in fig. 7 to 10, an embodiment of a pipe curtain includes the pipe joint assemblies 1, there are a plurality of pipe joint assemblies 1, each pipe joint assembly 1 is horizontally inserted into a soil body, the side walls of the pipe joint bodies 12 of each pipe joint assembly 1 are sequentially attached and spliced to form a gate-shaped support structure or a closed ring-shaped support structure, and each friction reducing plate 13 is sequentially spliced and coated on the outer side of the gate-shaped support structure or the closed ring-shaped support structure. Specifically, the pipe curtain is formed by sequentially jacking a plurality of pipe joint assemblies 1 into a soil body and connecting the pipe joint assemblies, can be designed into a square shape, a door shape or other forms according to actual engineering, meets the requirements of pipe curtains with different sizes and types under shallow burying conditions, and can effectively reduce the disturbance effect on the soil body during box culvert replacement operation as a forepoling
Wherein, the first lock mechanism that all is equipped with in the amalgamation face department of two adjacent coupling bodies 12, and first lock mechanism includes first draw-in groove 21 and first bellying 22, and first draw-in groove 21 is on a parallel with the axial arrangement of coupling body 12, and first draw-in groove 21 sets up in the lateral surface department of one of them of two coupling bodies 12, and first bellying 22 sets up in the lateral surface department of one of them of two coupling bodies 12. Specifically, the first engaging groove 21 is a semicircular groove, and the first protruding portion 22 is a semicircular protrusion matching with the semicircular groove. The pipe curtain structure connected mode is various, adopts more high-efficient, quick, steady semi-circular protruding and semicircular groove's connection structure between the adjacent pipe coupling body 12 on the tunnel cross section, and the pipe coupling body of being convenient for guide when reinserting the soil body to form complete pipe curtain frame, moreover, semi-circular protruding and semicircular groove's structure possesses bears with waterproof performance.
In this embodiment, the second clamping mechanisms are respectively disposed at the splicing surfaces of two adjacent friction reducing plates 13, each second clamping mechanism includes a T-shaped groove 31 and a T-shaped protrusion 32, the T-shaped grooves 31 are parallel to the axial direction of the pipe joint body 12, the T-shaped grooves 31 are disposed at the end surface of one of the two friction reducing plates 13, and the T-shaped protrusions 32 are disposed at the end surface of the other of the two pipe joint bodies 12. The splicing surfaces of two adjacent friction reducing plates 13 are effectively connected by the T-shaped lock catch with high tightness, so that the stability of the friction reducing plates 13 in the transverse direction of the tunnel can be effectively improved, and the effects of preventing soil from being backed up and isolating soil in the box culvert replacement operation process are realized.
In this embodiment, one or two of the two adjacent pipe joint bodies 12 are provided with a second grouting hole 124, and the second grouting hole 124 penetrates through the side wall of the pipe joint body 12 to introduce the resistance reducing slurry to the splicing surfaces of the two adjacent pipe joint bodies 12. Therefore, when the pipe joint assembly 1 is inserted into a soil body, the friction force between the contact surfaces of the two adjacent pipe joint bodies 12 is reduced, and construction is facilitated.
The second grouting holes and the third grouting holes reduce friction force in the process of pushing the pipe joint assembly 1 into the soil body, and the first grouting holes reduce friction force when pushing the pipe joint body 12 out of the soil body, so that the soil backing phenomenon of an underground large-section rectangular structure in the pipe curtain construction process is prevented.
As shown in fig. 11 to 14, an embodiment of a construction method for replacing a pipe curtain in a box culvert, where the pipe curtain is the above pipe curtain, includes the following steps:
step S1, digging an initial well 4 and a receiving well 5 at the two ends of the tunnel;
step S2, installing a pipe curtain machine 6 in the starting well 4, jacking the pipe joint assembly 1 by using the pipe curtain machine 6, and grouting between the friction reducing plate 13 and the contact surface of the soil body through the first through hole 123 and the second through hole 131;
step S3, removing the fasteners 11 in the fastener mounting holes 121, and mounting a box culvert pusher 7 in the starting well 4 to construct a box culvert 8;
step S4, jacking the box culvert 8 by using the box culvert propulsion machine 7, and grouting the joint surface of the pipe joint body 12 and the friction plate 13 by using the fastener mounting hole 121;
and step S5, removing the pipe joint body 12 pushed out to the receiving well 5 and soil.
Specifically, step S0 is included before step S1, the jacking sequence of each pipe joint assembly is determined in consideration of the structural form of the pipe curtain, and a high-strength bolt is used for connecting a friction reducing plate on each pipe joint assembly to ensure that the first through hole 123 and the second through hole 131 are coaxially arranged; in step S2, the pipe joint assembly 1 is jacked from bottom to top by the pipe curtain machine 6, during the jacking process, the semicircular protrusions and the semicircular grooves between the adjacent pipe joint bodies 11 are engaged in opposite directions, the T-shaped latches between the adjacent antifriction plates are effectively connected, and the antifriction plates 13 are connected by welding along the longitudinal direction of the underground passage; after step S3, before step S4, step S31 is included: after the pipe curtain integrally reaches the preset position, the integrally connected antifriction plates are integrally fixed at the hole position of the starting well 4 in a bolt or welding mode, so that when the pipe joint body is pushed through a box culvert in the step S5, the antifriction plates are fixed on the soil body, and the pipe joint body slides with the antifriction plates, so that each pipe joint body 12 slides out to the receiving well 5 from the lower side of the soil body.
Step S2 further includes injecting slurry into the abutting surface between two adjacent pipe joint bodies 12 through the second slurry injection hole 124. In step S2, when the pipe joint assembly 1 is pushed in, a T-shaped strip attached to the inner surface of the T-shaped groove is provided in each T-shaped groove of each friction reducing plate 13. And (3) taking out the T-shaped strip and injecting a sealing anti-drag material in the later-stage adjacent pipe construction, so that the T-shaped bulge can be conveniently inserted into the T-shaped groove, and the T-shaped strip is a batten.
In summary, according to the pipe joint assembly provided by the invention, the side walls of the pipe joint body, which are attached to the antifriction plates, are provided with the fastener mounting holes, the fasteners are arranged in the fastener mounting holes in a penetrating manner, so that the pipe joint body and the antifriction plates can be detachably connected, when the box culvert pushes the pipe joint body, the fasteners are detached from the fastener mounting holes, grouting is performed in the fastener mounting holes, the grout flows through the plurality of splitter boxes communicated with the first grouting holes, the splitter boxes disperse the grout to the attachment surfaces of the antifriction plates and the pipe joint body, so that the friction force between the antifriction plates and the pipe joint body can be reduced, the construction requirements of an underground passage with a long length are met, moreover, the fastener mounting holes are used as grouting holes, no additional grouting holes are required to be arranged on the pipe joint body, and the strength of the pipe joint body is ensured.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and substitutions can be made without departing from the technical principle of the present invention, and these modifications and substitutions should also be regarded as the protection scope of the present invention.
Claims (10)
1. The pipe joint assembly (1) is characterized by comprising a fastener (11), a polygonal-prism-shaped pipe joint body (12) and a friction reducing plate (13) which is attached to the outer side surface of the pipe joint body (12) contacted with a soil body, wherein a fastener mounting hole (121) is formed in the side wall of the pipe joint body (12) attached to the friction reducing plate (13), the fastener mounting hole (121) forms a first grouting hole for flowing drag reduction slurry into the space between the friction reducing plate (13) and the attachment surface of the pipe joint body (12), and the fastener (11) is arranged in the fastener mounting hole (121) in a penetrating manner;
and a plurality of shunting grooves (122) are arranged on the outer side surface of the pipe joint body (12) attached to the friction reducing plate (13), and each shunting groove (122) is communicated with the fastener mounting hole (121).
2. The pipe section assembly according to claim 1, wherein the side wall of the pipe section body (12) attached to the friction reducing plate (13) is provided with a first through hole (123) arranged perpendicular to the friction reducing plate (13), the friction reducing plate (13) is provided with a second through hole (131), and the first through hole (123) and the second through hole (131) are communicated.
3. A pipe section assembly according to claim 1, wherein each of said splitter boxes (122) is arranged in a scattering manner centering on said fastener mounting hole (121).
4. A pipe curtain, comprising a plurality of pipe joint assemblies (1) according to any one of claims 1 to 2, wherein each pipe joint assembly (1) is horizontally inserted into a soil body, the side walls of the pipe joint bodies (12) of each pipe joint assembly (1) are sequentially jointed and spliced to form a door-shaped supporting structure or a closed ring-shaped supporting structure, and each friction reducing plate (13) is sequentially jointed and coated on the outer side of the door-shaped supporting structure or the closed ring-shaped supporting structure.
5. A pipe curtain as claimed in claim 4, wherein a first buckling mechanism is arranged at the splicing surface of two adjacent pipe joint bodies (12), the first buckling mechanism comprises a first clamping groove (21) and a first protruding portion (22), the first clamping groove (21) is arranged in parallel with the axial direction of the pipe joint bodies (12), the first clamping groove (21) is arranged at the outer side surface of one of the two adjacent pipe joint bodies (12), and the first protruding portion (22) is arranged at the outer side surface of the other of the two adjacent pipe joint bodies (12).
6. The tube bundle of claim 4, wherein one or two of the adjacent two tube section bodies (12) are provided with second grouting holes (124), and the second grouting holes (124) penetrate through the side wall of the tube section body (12) to introduce resistance reducing slurry to the splicing surfaces of the adjacent two tube section bodies (12).
7. A pipe curtain as claimed in claim 4, wherein a second clamping mechanism is arranged at the splicing surface of two adjacent friction reducing plates (13), the second clamping mechanism comprises a T-shaped groove (31) and a T-shaped protrusion (32), the T-shaped groove (31) is arranged in parallel with the axial direction of the pipe section body (12), the T-shaped groove (31) is arranged at the end surface of one of the two adjacent friction reducing plates (13), and the T-shaped protrusion (32) is arranged at the end surface of the other of the two adjacent pipe section bodies (12).
8. A construction method for replacing a pipe curtain in a box culvert, which is characterized in that the pipe curtain is the pipe curtain of any one of claims 4 to 7, and comprises the following steps,
step S1, digging an initial well (4) and a receiving well (5) at the two ends of the tunnel;
step S2, installing a pipe curtain machine (6) in the starting well (4), jacking the pipe joint assembly (1) by using the pipe curtain machine (6), and grouting between the friction reducing plate (13) and the contact surface of the soil body through the first through hole (123) and the second through hole (131);
s3, removing the fasteners (11) in the fastener mounting holes (121), and mounting a box culvert propelling machine (7) in the starting well (4) to construct a box culvert (8);
s4, jacking the box culvert (8) by using the box culvert propelling machine (7), and grouting the joint surface of the pipe joint body (12) and the friction plate (13) by using the fastener mounting hole (121);
and step S5, removing the pipe joint body (12) pushed out to the receiving well (5) and soil.
9. The construction method of box culvert replacing pipe roof as claimed in claim 8, wherein said step S2 further comprises grouting at the abutting surface between two adjacent pipe section bodies (12) by using a second grouting hole (124).
10. The construction method for replacing the pipe curtain in the box culvert according to claim 8, wherein in the step S2, when the pipe section assembly (1) is jacked in, a T-shaped groove of the friction reducing plate (13) is internally filled with a T-shaped strip which is attached to the inner side surface of the T-shaped groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210584202.XA CN114893219B (en) | 2022-05-26 | 2022-05-26 | Pipe joint assembly, pipe curtain and box culvert replacement pipe curtain construction method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210584202.XA CN114893219B (en) | 2022-05-26 | 2022-05-26 | Pipe joint assembly, pipe curtain and box culvert replacement pipe curtain construction method |
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| CN114893219A true CN114893219A (en) | 2022-08-12 |
| CN114893219B CN114893219B (en) | 2023-03-10 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115596483A (en) * | 2022-11-29 | 2023-01-13 | 中铁电气化局集团有限公司（Cn） | Multi-pilot-hole tunnel temporary supporting device and construction method thereof |
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| CN106522966A (en) * | 2016-11-07 | 2017-03-22 | 成都建工路桥建设有限公司 | Sandy cobble stratum earth pressure balance rectangular shield jacking-tunneling antifriction construction method |
| CN206530344U (en) * | 2017-02-28 | 2017-09-29 | 中铁二院工程集团有限责任公司 | A kind of jacking pipe joints antifriction injected hole construction |
| CN213540423U (en) * | 2020-11-12 | 2021-06-25 | 中铁隧道集团一处有限公司 | Annular antifriction grouting system for ultra-large section rectangular jacking pipe |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115596483A (en) * | 2022-11-29 | 2023-01-13 | 中铁电气化局集团有限公司（Cn） | Multi-pilot-hole tunnel temporary supporting device and construction method thereof |
| CN115596483B (en) * | 2022-11-29 | 2023-03-24 | 中铁电气化局集团有限公司 | Multi-pilot-hole tunnel temporary supporting device and construction method thereof |
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