CN108442413B - Prefabricated tunnel wall horizontal seam reinforcing structure and splicing method - Google Patents
Prefabricated tunnel wall horizontal seam reinforcing structure and splicing method Download PDFInfo
- Publication number
- CN108442413B CN108442413B CN201810538824.2A CN201810538824A CN108442413B CN 108442413 B CN108442413 B CN 108442413B CN 201810538824 A CN201810538824 A CN 201810538824A CN 108442413 B CN108442413 B CN 108442413B
- Authority
- CN
- China
- Prior art keywords
- shearing
- resistant
- prefabricated
- wall body
- steel
- 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.)
- Active
Links
- 230000003014 reinforcing effect Effects 0.000 title claims abstract description 76
- 238000000034 method Methods 0.000 title claims description 13
- 238000010008 shearing Methods 0.000 claims abstract description 164
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 134
- 239000010959 steel Substances 0.000 claims abstract description 134
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims description 23
- 238000009434 installation Methods 0.000 claims description 17
- 238000011065 in-situ storage Methods 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 238000005516 engineering process Methods 0.000 abstract description 2
- 210000001503 joint Anatomy 0.000 description 9
- 238000010276 construction Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 6
- 238000005728 strengthening Methods 0.000 description 6
- 230000002787 reinforcement Effects 0.000 description 4
- 238000007789 sealing Methods 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 230000009466 transformation Effects 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
Classifications
-
- 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
- E02D29/16—Arrangement or construction of joints in foundation structures
-
- 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
- E02D29/045—Underground structures, e.g. tunnels or galleries, built in the open air or by methods involving disturbance of the ground surface all along the location line; Methods of making them
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Lining And Supports For Tunnels (AREA)
Abstract
The invention discloses a prefabricated tunnel technology. The invention discloses a prefabricated tunnel wall horizontal seam reinforcing structure, which comprises shearing-resistant mounting holes respectively preset on walls on two sides of a horizontal seam and a shearing-resistant steel box arranged in the shearing-resistant mounting holes, wherein the two shearing-resistant mounting holes on two sides of the horizontal seam are correspondingly arranged, so that after the walls are butted, the two shearing-resistant mounting holes form a shearing-resistant mounting cavity for arranging the shearing-resistant steel box. The reinforced structure is provided with the shearing-resistant mounting holes in the prefabricated wall body in a reserved mode, and the shearing-resistant steel boxes are correspondingly arranged, so that the reinforced structure is low in manufacturing difficulty, high in assembly efficiency and reinforced in structure, and the shearing-resistant steel boxes and the shearing-resistant mounting cavities are matched to meet the shearing strength requirements of the prefabricated wall body after being spliced.
Description
Technical Field
The invention relates to a prefabricated tunnel technology, in particular to a prefabricated tunnel wall horizontal seam reinforcing structure and a splicing method.
Background
With the acceleration of urban progress and the increasing maturity of urban road networks, rapid transformation of old roads in cities becomes increasingly important. In the reconstruction process of old roads, the engineering construction is very important to be fast and the passing is fast, wherein the underpass tunnel is arranged to be a more scientific road structure, the ground space can be saved, and the whole effect is concise and attractive, so that the engineering construction system is widely applied. Because the underpass tunnel transformation is carried out on the existing road in the existing urban road network, the construction period is required to be strict so as to reduce the interference to urban life.
Referring to the foreign underpass tunnel engineering and the underground comprehensive pipe gallery system, the design of assembling the tunnel is proposed, the prefabricated segmentation of the tunnel roof, the tunnel bottom plate or the tunnel side wall is completed in a prefabricated factory, and then the construction mode of assembling is carried out on a construction site, so that the construction method has the advantages of saving construction period and short road interference time. However, in the tunnel with the assembled structure, how to ensure the connection strength and the splicing efficiency of the splicing parts becomes one of the key factors of whether the whole tunnel can perform normal functions, and particularly, the horizontal joint reinforcing structure of the vertical splicing wall body is a part needing important research.
The adopted vertical connection mode is to pre-embed reinforcing steel bars or reserved steel bar holes in the wall bodies at two sides to be spliced, insert the pre-embedded reinforcing steel bars of one wall body into the reserved steel bar holes of the other wall body during splicing to form a vertical reinforcing structure after splicing of assembled wall bodies, and the problems of uneven reinforcement, complicated installation procedure and low construction efficiency exist;
In addition, the shear strength reinforcing structure at the horizontal seam is a mortise and tenon matched structure of the wall bodies at the two sides of the horizontal seam, and the shear strength of the structure is not required, so that shear steel plates are pre-buried on the side surfaces of the wall bodies at the two sides of the horizontal seam, and the shear strength is increased by being matched with an external covering steel plate layer.
Disclosure of Invention
The invention aims to solve the problems that the existing vertical reinforcing structure is uneven in reinforcement, complex in installation procedure and low in efficiency when the horizontal joints of the wall bodies of a prefabricated tunnel are spliced, and the mortise and tenon matching structures which are matched with the wall bodies on two sides of the horizontal joints are insufficient in shear strength and increase in manufacturing difficulty.
In order to achieve the above object, the present invention provides the following technical solutions:
The utility model provides a prefabricated tunnel wall body horizontal seam additional strengthening, including predetermine respectively on the wall body of horizontal seam both sides shear mounting hole and be used for installing the steel case of shearing in the shear mounting hole, two shear mounting holes of horizontal seam both sides correspond the setting, make two shear mounting holes form the shear mounting chamber of settling the steel case of shearing after the wall body butt joint.
This prefabricated tunnel wall body horizontal seam additional strengthening, reserve the shear-resistant mounting hole on its concatenation face when prefabricating the wall body, the shear-resistant mounting hole on the wall body of horizontal seam both sides corresponds the setting, and set up the shear-resistant steel case correspondingly, form the shear-resistant installation cavity that suits with the shear-resistant steel case size after making up the shear-resistant mounting hole of wall body of horizontal seam both sides wall body, when assembling prefabricated wall body, can pack the shear-resistant steel case earlier in the shear-resistant mounting hole of wall body of horizontal seam one side, the shear-resistant steel case part outstanding outside this side shear-resistant mounting hole, the protruding part of shear-resistant steel case when the wall body concatenation directly pack in the shear-resistant mounting hole of opposite side wall body can, the manufacturing degree of difficulty is low, assembly efficiency is high and structural reinforcement is even, the shear strength demand after prefabricated wall body concatenation is satisfied in the cooperation of shear-resistant steel case and shear-resistant installation cavity.
Preferably, the shearing steel box is of a column or square structure, and two ends of the shearing steel box, which are placed in the shearing installation cavity, are of an opening design. The shearing-resistant mounting holes are correspondingly formed according to the structural shape and the size of the shearing-resistant steel box, the shearing-resistant steel box is designed into an integral column or square structure, and after the prefabricated wall body is spliced, the shearing-resistant steel box can provide enough shearing strength and enables the whole shearing-resistant structure to be stressed uniformly.
Preferably, the concrete reinforced structure cast-in-situ in the shearing mounting hole is further included, and the shearing steel box is filled with concrete both inside and outside. And the shearing-resistant mounting cavity provided with the shearing-resistant steel box is filled with concrete, and the shearing-resistant steel box and the prefabricated wall body are combined into a whole, so that the integral strength is enhanced.
Preferably, at least one shearing-resistant mounting hole is arranged on the horizontal joint splicing surface of the wall body, and when a plurality of shearing-resistant mounting holes are arranged, the shearing-resistant mounting holes are uniformly distributed on the horizontal joint splicing surface. A plurality of shearing-resistant mounting holes are uniformly distributed on the splicing surface of the horizontal seam, and a plurality of shearing-resistant reinforcing structures are formed along the horizontal seam, so that the shearing resistance of the spliced wall body is greatly improved.
Preferably, the shear steel box is of a cube-shaped structure and comprises two groups of oppositely arranged steel plates in a spliced mode, and specifically comprises two first box plates which are oppositely arranged and two second box plates which are oppositely arranged. The shear steel box with the cube-shaped structure is formed by splicing two groups of oppositely arranged steel plates, and the box plates bearing the shear force can rely on the auxiliary bearing force of the box plates connected with the shear steel box and adjacent to the shear steel box, so that the shear performance is achieved.
Preferably, the second box plate is approximately parallel to the extending direction of the tunnel, and a plurality of shear nails are further arranged on the second box plate and are vertically arranged along the second box plate. After the shearing-resistant mounting holes and the shearing-resistant steel box are filled with concrete, the shearing force between the concrete and the steel and the lifting force for separating the concrete from the steel can be transmitted by the shearing force nails, so that the concrete and the steel are combined into an integral structure and work together, and a good shearing-resistant effect is achieved.
Preferably, a plurality of pouring holes are distributed on the first box plate, and the pouring holes are used for communicating the shearing steel box with the shearing installation cavity. And the pouring holes are arranged on the first box plate, so that the shearing steel box and the shearing installation cavity are conveniently and rapidly filled when concrete is poured.
Preferably, the shearing steel box is of a cylindrical structure, and a plurality of shearing nails are arranged on the wall of the cylinder body. The cylinder body wall is provided with a plurality of shear nails, so that the structure shear resistance after the shear steel box and the shear mounting holes are filled with concrete is ensured, and the shear nails are uniformly distributed on the cylinder wall along the axial direction of the shear steel box.
Preferably, the prefabricated wall body is internally provided with a transverse reinforcing structure and a vertical reinforcing structure, the transverse reinforcing structure comprises reserved reinforcing steel bar mounting holes and reinforcing steel bars, embedded steel plates are arranged in the wall body close to the end parts of the two ends of the reinforcing steel bar mounting holes, and after the reinforcing steel bars are mounted, the embedded steel plates, the wall body and the reinforcing steel bars form an integral reinforcing structure. The transverse reinforcing structure and the vertical reinforcing structure further strengthen the assembled tunnel wall body, and the integral strength requirement of the tunnel wall body is met.
A splicing method of horizontal joints of prefabricated tunnel walls comprises the following steps:
A. After the prefabricated wall body is prepared in place, firstly, installing the prefabricated wall body on the lower side forming the horizontal seam in place;
B. Placing the shearing steel box into a shearing mounting hole of the prefabricated wall body at the lower side; fixing the temporary position;
C. Hoisting an upper prefabricated wall body forming a horizontal seam, and aligning the shearing-resistant mounting hole of the upper prefabricated wall body with the shearing-resistant steel box approximately;
D. Lowering the upper prefabricated wall body to form a horizontal seam with the lower prefabricated wall body;
E. And pouring concrete into the shearing-resistant mounting cavity formed by the upper prefabricated wall body and the lower prefabricated wall body until the shearing-resistant steel box and the shearing-resistant mounting holes are filled with concrete.
The splicing method of the horizontal seam of the prefabricated tunnel wall utilizes the reinforcing structure of the horizontal seam of the prefabricated tunnel wall, can rapidly complete the splicing operation of the horizontal seam of the wall, firstly loads the shearing resistant steel box into the shearing resistant mounting hole of the prefabricated wall at the lower side, partially protrudes out of the shearing resistant mounting hole at the side, then hangs the prefabricated wall at the upper side, and directly loads the protruding part of the shearing resistant steel box into the shearing resistant mounting hole of the prefabricated wall at the upper side.
Compared with the prior art, the invention has the beneficial effects that:
1. the horizontal seam reinforcing structure of the prefabricated tunnel wall body is characterized in that shear-resistant mounting holes are reserved in the prefabricated wall body, and shear-resistant steel boxes are correspondingly arranged, so that the prefabricated tunnel wall body is low in manufacturing difficulty, high in assembly efficiency and even in structural reinforcement, and the shear strength requirements of the prefabricated wall body after splicing are met through the cooperation of the shear-resistant steel boxes and the shear-resistant mounting holes;
2. the shearing-resistant mounting holes are correspondingly arranged according to the structural shape and the size of the shearing-resistant steel box, the shearing-resistant steel box is designed into an integral column or square structure, and after the prefabricated wall body is spliced, the shearing-resistant steel box can provide enough shearing strength and the whole shearing-resistant structure is uniformly stressed;
3. Filling concrete into the shearing-resistant mounting cavity provided with the shearing-resistant steel box, filling the shearing-resistant steel box with the concrete, and integrating the shearing-resistant steel box with the prefabricated wall body into a whole structure, so that the integral strength is enhanced;
4. after the shearing-resistant mounting holes and the shearing-resistant steel box are filled with concrete, the shearing force between the concrete and the steel and the lifting force for separating the concrete from the steel can be transmitted by the shearing force nails, so that the concrete and the steel are combined into an integral structure and work together, and a good shearing-resistant effect is achieved;
5. The splicing method of the horizontal seam of the prefabricated tunnel wall body utilizes the reinforcing structure, can rapidly complete the splicing operation of the horizontal seam of the wall body, the shearing resistant steel box is firstly installed in the shearing resistant installation hole of the prefabricated wall body at the lower side, the shearing resistant steel box part protrudes out of the shearing resistant installation hole at the side, then the prefabricated wall body at the upper side is hoisted, the protruding part of the shearing resistant steel box is directly installed in the shearing resistant installation hole of the prefabricated wall body at the upper side, the assembly efficiency is high, the structure is reinforced uniformly, and the shearing resistant strength requirement of the prefabricated wall body after the splicing is met by the cooperation of the shearing resistant steel box and the shearing resistant installation cavity.
Description of the drawings:
FIG. 1 is a schematic view of the installation structure of the horizontal seam reinforcing structure of the prefabricated tunnel wall body.
Fig. 2 is a top view of the lower plate of fig. 1.
Fig. 3 is a schematic view of a splicing structure at a horizontal seam of a large-span side wall in an embodiment.
Fig. 4 is a schematic view of a splicing structure at a horizontal seam of a middle wall in an embodiment.
Fig. 5 is a schematic view of a splicing structure at a horizontal seam of a side wall of a header block in an embodiment.
Fig. 6 is a schematic structural view of a shear steel box in an embodiment.
Fig. 7 is a cross-sectional view of a shear steel box in an embodiment.
Fig. 8 is a schematic view of the first deck of fig. 6.
The marks in the figure: the anti-shearing device comprises a 1-upper top plate, a 2-lower bottom plate, a 3-shearing mounting hole, a 301-butt upper hole, a 302-butt lower hole, a 4-transverse reinforcing hole, a 5-rubber water stop strip, a 6-shearing steel box, a 601-first box plate, a 6011-pouring hole, a 602-second box plate, 603-shearing nails, 7-embedded steel plates, 8-vertical reinforcing holes, 9-transverse reinforcing studs and 10-embedded sleeves.
Detailed Description
The present invention will be described in further detail with reference to test examples and specific embodiments. It should not be construed that the scope of the above subject matter of the present invention is limited to the following embodiments, and all techniques realized based on the present invention are within the scope of the present invention.
Example 1
As shown in fig. 1 and fig. 2, the prefabricated tunnel in this embodiment is formed by splicing a prefabricated upper top plate 1 and a prefabricated lower bottom plate 2, where the upper top plate 1 and the lower bottom plate 2 are two corresponding M-shaped structures, so as to form two side walls and a middle wall.
As shown in fig. 1 to 8, the prefabricated tunnel wall horizontal seam reinforcing structure of the present embodiment includes shear mounting holes 3 respectively preset on the walls on both sides of the horizontal seam, that is, a butt-joint upper hole 301 at the lower ends of the side walls and the middle walls of the upper top plate 1, and a butt-joint lower hole 302 at the ends of the side walls and the middle walls of the lower bottom plate 2; in addition, the wall body comprises a shearing resistant steel box 6 which is arranged in the shearing resistant mounting hole 3, and the butt joint upper hole 301 and the butt joint lower hole 302 are correspondingly arranged, so that the shearing resistant mounting holes form a shearing resistant mounting cavity for arranging the shearing resistant steel box after the wall body is in butt joint.
According to the prefabricated tunnel wall horizontal seam reinforcing structure, the shearing-resistant mounting holes are reserved on the splicing surfaces of the prefabricated tunnel wall horizontal seam reinforcing structure, the shearing-resistant mounting holes on the wall bodies on two sides of the horizontal seam are correspondingly arranged, and the shearing-resistant steel boxes are correspondingly arranged, so that shearing-resistant mounting cavities which are matched with the shearing-resistant steel boxes in size are formed after the shearing-resistant mounting holes on the wall bodies on two sides of the horizontal seam are combined, when the prefabricated wall is assembled, the shearing-resistant steel boxes can be firstly arranged in the shearing-resistant mounting holes of the wall bodies on one side of the horizontal seam, the shearing-resistant steel boxes are partially protruded out of the shearing-resistant mounting holes on the side, the protruding parts of the shearing-resistant steel boxes are directly arranged in the shearing-resistant mounting holes of the wall bodies on the other side during wall splicing, the manufacturing difficulty is low, the assembly efficiency is high, the structure is reinforced uniformly, and the shearing strength requirements after the prefabricated wall splicing are met by the cooperation of the shearing-resistant steel boxes and the shearing-resistant mounting cavities.
Example 2
As shown in fig. 1 to 8, according to the prefabricated tunnel wall horizontal seam reinforcing structure of embodiment 1, the shear steel box 6 of this embodiment is a square structure, and both ends of the box into which the shear mounting cavity is placed are designed as openings. The shearing-resistant mounting holes are correspondingly formed according to the structural shape and the size of the shearing-resistant steel box, the shearing-resistant steel box is designed into an integral square structure, and after the prefabricated wall body is spliced, the shearing-resistant steel box can provide enough shearing strength and enables the whole shearing-resistant structure to be stressed uniformly.
Further, the concrete reinforcing structure cast-in-place into the shear mounting holes 3 is also included, and the inside and the outside of the shear steel box 6 are filled with concrete. And the shearing-resistant mounting cavity provided with the shearing-resistant steel box is filled with concrete, and the shearing-resistant steel box and the prefabricated wall body are combined into a whole, so that the integral strength is enhanced.
In this embodiment, a plurality of shear mounting holes 3 are provided on the horizontal joint splicing surface of the wall body, and the plurality of shear mounting holes 3 are uniformly arranged on the horizontal joint splicing surface. A plurality of shearing-resistant mounting holes are uniformly distributed on the splicing surface of the horizontal seam, and a plurality of shearing-resistant reinforcing structures are formed along the horizontal seam, so that the shearing resistance of the spliced wall body is greatly improved.
Further, the shear steel box 6 of the present embodiment has a cube structure, and includes two sets of oppositely disposed steel plates, specifically two first box plates 601 oppositely disposed, and two second box plates 602 oppositely disposed. The shear steel box with the cube-shaped structure is formed by splicing two groups of oppositely arranged steel plates, and the box plates bearing the shear force can rely on the auxiliary bearing force of the box plates connected with the shear steel box and adjacent to the shear steel box, so that the shear performance is achieved.
Further, the second box plate 602 is approximately parallel to the extending direction of the tunnel, and a plurality of shear nails 603 are further arranged on the second box plate 602, and the plurality of shear nails 603 are vertically arranged along the second box plate 602. After the shearing-resistant mounting holes and the shearing-resistant steel box are filled with concrete, the shearing force between the concrete and the steel and the lifting force for separating the concrete from the steel can be transmitted by the shearing force nails, so that the concrete and the steel are combined into an integral structure and work together, and a good shearing-resistant effect is achieved.
In this embodiment, a plurality of pouring holes 6011 are disposed on the first tank plate 601, and the pouring holes 6011 are used for communicating the shear steel tank 6 with the shear mounting cavity, so that the shear steel tank and the shear mounting cavity are rapidly filled when concrete is poured.
Example 3
As shown in fig. 1 to 8, according to the prefabricated tunnel wall horizontal seam reinforcing structure of embodiment 1, the shear steel box of the embodiment is of a cylindrical structure, the shear steel box is of a cylindrical structure, and a plurality of shear nails are arranged on the wall of the cylinder. The cylinder body wall is provided with a plurality of shear nails, so that the structure shear resistance after the shear steel box and the shear mounting holes are filled with concrete is ensured, and the shear nails are uniformly distributed on the cylinder wall along the axial direction of the shear steel box.
Example 4
According to the prefabricated tunnel wall horizontal seam reinforcing structure of embodiment 2 or 3, as shown in fig. 3, for the splicing structure at the horizontal seam of the large-span side wall, besides the reinforcing structure composed of the shear mounting hole 3, the shear steel box 6 and the concrete, a transverse reinforcing structure and a vertical reinforcing structure are further arranged in the prefabricated wall, wherein the transverse reinforcing structure comprises reserved steel bar mounting holes and reinforcing steel bars, the reinforcing steel bars of the embodiment are transverse reinforcing studs 9 and accessories thereof, embedded steel plates 7 are arranged in the wall body close to the two ends of the steel bar mounting holes, and after the transverse reinforcing studs 9 are mounted, the embedded steel plates, the wall body and the reinforcing steel bars form an integral reinforcing structure. The transverse reinforcing structure and the vertical reinforcing structure further strengthen the assembled tunnel wall body, and the integral strength requirement of the tunnel wall body is met. In addition, in the case of tunnel segment splicing, the transverse splicing and stiffening takes place by providing transverse stiffening holes 4 and connectors at the tunnel stage.
Meanwhile, the vertical reinforcing structure comprises a preset vertical reinforcing hole 8 and a vertical reinforcing steel bar, and is used for vertical splicing and forming at a single tunnel stage; to the horizontal seam mosaic structure of striding the side wall greatly, still be equipped with rubber sealing strip 5, this embodiment is equipped with rubber sealing strip 5 respectively near the position of two sides on the concatenation terminal surface of lower plate 2 for prevent in the water of the interior outside of tunnel enters into middle horizontal seam additional strengthening, also play the effect to the whole waterproof of tunnel, guarantee horizontal seam additional strengthening and prefabricated assembled tunnel's life.
Example 5
According to the prefabricated tunnel wall horizontal seam reinforcing structure of the embodiment 2 or 3, as shown in fig. 4, for the splicing structure at the horizontal seam of the middle wall, the transverse reinforcing structure arranged in the prefabricated wall comprises a reserved steel bar mounting hole and reinforcing steel bars outside the reinforcing structure formed by the shearing-resistant mounting hole 3, the shearing-resistant steel box 6 and concrete, the reinforcing steel bars in the embodiment are transverse reinforcing studs 9 and accessories thereof, embedded steel plates 7 are arranged in the wall body close to the two end parts of the steel bar mounting hole, and after the transverse reinforcing studs 9 are mounted, the embedded steel plates, the wall body and the reinforcing steel bars form an integral reinforcing structure.
Because the middle wall is positioned in the tunnel, a waterproof water stop strip is not required to be arranged.
Example 6
According to the horizontal seam reinforcing structure of the prefabricated tunnel wall according to embodiment 2 or 3, as shown in fig. 5, for the splicing structure at the horizontal seam of the end block side wall, besides the reinforcing structure composed of the shear mounting hole 3, the shear steel box 6 and the concrete, a transverse reinforcing structure and a vertical reinforcing structure are further arranged in the prefabricated wall, wherein the transverse reinforcing structure comprises reserved reinforcing steel bar mounting holes and reinforcing steel bars, the reinforcing steel bars of the embodiment are transverse reinforcing studs 9 and accessories thereof, embedded steel plates 7 are arranged in the wall body close to two end parts of the reinforcing steel bar mounting holes, and after the transverse reinforcing studs 9 are mounted, the embedded steel plates, the wall body and the reinforcing steel bars form an integral reinforcing structure. The transverse reinforcing structure and the vertical reinforcing structure further strengthen the assembled tunnel wall body, and the integral strength requirement of the tunnel wall body is met. In addition, in the case of tunnel segment splicing, the transverse splicing and stiffening takes place by providing transverse stiffening holes 4 and connectors at the tunnel stage.
Meanwhile, the vertical reinforcing structure comprises a preset vertical reinforcing hole 8 and a vertical reinforcing steel bar, and is used for vertical splicing and forming at a single tunnel stage; to the horizontal seam mosaic structure of striding the side wall greatly, still be equipped with rubber sealing strip 5, this embodiment is equipped with rubber sealing strip 5 respectively near the position of two sides on the concatenation terminal surface of lower plate 2 for prevent in the water of the interior outside of tunnel enters into middle horizontal seam additional strengthening, also play the effect to the whole waterproof of tunnel, guarantee horizontal seam additional strengthening and prefabricated assembled tunnel's life.
For the end block side wall part, the end face end part is provided with the embedded sleeve 10, when the transverse reinforcing studs 9 are connected with the embedded steel plates 7 on two sides of the wall body, the embedded sleeve 10 provides enough supporting force for the transverse reinforcing studs 9, and damage of the end block caused by swinging of the end part of the transverse reinforcing studs 9 can be reduced.
Example 7
As shown in fig. 1 to 8, the reinforcing structure for horizontal joints of prefabricated tunnel walls according to one of embodiments 1 to 6 is applied to a splicing method for horizontal joints of prefabricated tunnel walls according to the present embodiment, and includes the following steps:
A. after the prefabricated wall body is prepared in place, the lower bottom plate 2 forming the horizontal seam is firstly installed in place;
B. Placing the shear steel box 6 into the butt-joint lower hole 302 of the lower base plate 2; and fixing the temporary position;
C. hoisting the upper top plate 1 forming a horizontal seam and aligning the butt-joint upper hole 301 of the upper top plate 1 with the position of the shearing resistant box 6 approximately;
D. the upper top plate 1 is lowered to form a horizontal seam with the lower bottom plate 2;
E. Concrete is poured into the shearing-resistant mounting cavity formed by the upper top plate 1 and the lower bottom plate 2 until the shearing-resistant steel box 6 and the shearing-resistant mounting hole 3 are filled with concrete.
According to the splicing method for the horizontal seam of the prefabricated tunnel wall body, the reinforcing structure of the horizontal seam of the prefabricated tunnel wall body is utilized, splicing operation of the horizontal seam of the wall body can be completed rapidly, the shearing resistant steel box is firstly installed in the shearing resistant installation hole of the prefabricated wall body at the lower side, the shearing resistant steel box is partially protruded out of the shearing resistant installation hole at the side, then the prefabricated wall body at the upper side is hoisted, the protruding portion of the shearing resistant steel box is directly installed in the shearing resistant installation hole of the prefabricated wall body at the upper side, the assembly efficiency is high, the structure is reinforced uniformly, and the shearing resistant strength requirement of the prefabricated wall body after splicing is met by the cooperation of the shearing resistant steel box and the shearing resistant installation cavity.
All of the features disclosed in this specification, or all of the steps in a method or process disclosed, may be combined in any combination, except for mutually exclusive features and/or steps.
Any feature disclosed in this specification (including any accompanying claims, abstract and drawings), may be replaced by alternative features serving the same, equivalent or similar purpose, unless expressly stated otherwise. That is, each feature is one example only of a generic series of equivalent or similar features, unless expressly stated otherwise.
Claims (8)
1. The prefabricated tunnel wall horizontal seam reinforcing structure is characterized by comprising shearing-resistant mounting holes and shearing-resistant steel boxes, wherein the shearing-resistant mounting holes are respectively preset on the walls on two sides of the horizontal seam, the shearing-resistant steel boxes are arranged in the shearing-resistant mounting holes, and the two shearing-resistant mounting holes on two sides of the horizontal seam are correspondingly arranged, so that after the walls are butted, the shearing-resistant mounting holes form shearing-resistant mounting cavities for arranging the shearing-resistant steel boxes;
The shearing steel box is of a column or square structure, and two ends of the shearing steel box, which are placed in the shearing installation cavity, are both of an opening design;
the concrete reinforced structure cast-in-situ in the shearing-resistant mounting hole is further included, and concrete is filled in the shearing-resistant steel box and filled out of the shearing-resistant steel box.
2. The horizontal joint reinforcing structure of the prefabricated tunnel wall according to claim 1, wherein at least one shearing-resistant mounting hole is provided on a joint surface of the wall body at one side of the horizontal joint, and when a plurality of shearing-resistant mounting holes are provided, the shearing-resistant mounting holes are uniformly arranged on the joint surface.
3. The prefabricated tunnel wall horizontal seam reinforcing structure according to any of claims 1-2, wherein the shear steel box is of a cube type structure and comprises two sets of oppositely arranged steel plates which are spliced, namely two first box plates which are oppositely arranged and two second box plates which are oppositely arranged.
4. A prefabricated tunnel wall horizontal joint reinforcing structure according to claim 3, wherein the second box plate is substantially parallel to the extending direction of the tunnel, and a plurality of shear nails are further provided on the second box plate, and the plurality of shear nails are vertically arranged along the second box plate.
5. The prefabricated tunnel wall horizontal seam reinforcing structure according to claim 4, wherein a plurality of pouring holes are arranged on the first box plate, and the pouring holes are used for communicating the shearing resistant box with the shearing resistant mounting cavity.
6. The prefabricated tunnel wall horizontal joint reinforcing structure according to claim 2, wherein the shear steel box is of a cylindrical structure, and a plurality of shear nails are arranged on the wall of the cylinder.
7. The prefabricated tunnel wall horizontal seam reinforcing structure according to claim 5 or 6, wherein a transverse reinforcing structure and a vertical reinforcing structure are further arranged in the prefabricated wall body, the transverse reinforcing structure comprises reserved steel bar mounting holes and reinforcing steel bars, embedded steel plates are arranged in the wall body close to the two end parts of the steel bar mounting holes, and after the reinforcing steel bars are mounted, the embedded steel plates, the wall body and the reinforcing steel bars form an integral reinforcing structure.
8. A method for splicing horizontal joints of prefabricated tunnel walls, when the reinforcing structure of the horizontal joints of the prefabricated tunnel walls according to any one of claims 1 to 7 is used for splicing prefabricated walls, comprising the following steps:
A. After the prefabricated wall body is prepared in place, firstly, installing the prefabricated wall body on the lower side forming the horizontal seam in place;
B. Placing the shearing steel box into a shearing mounting hole of the prefabricated wall body at the lower side;
C. Hoisting an upper prefabricated wall body forming a horizontal seam, and aligning the shearing-resistant mounting hole of the upper prefabricated wall body with the shearing-resistant steel box approximately;
D. Lowering the upper prefabricated wall body to form a horizontal seam with the lower prefabricated wall body;
E. And pouring concrete into the shearing-resistant mounting cavity formed by the upper prefabricated wall body and the lower prefabricated wall body until the shearing-resistant steel box and the shearing-resistant mounting holes are filled with concrete.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810538824.2A CN108442413B (en) | 2018-05-30 | 2018-05-30 | Prefabricated tunnel wall horizontal seam reinforcing structure and splicing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810538824.2A CN108442413B (en) | 2018-05-30 | 2018-05-30 | Prefabricated tunnel wall horizontal seam reinforcing structure and splicing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108442413A CN108442413A (en) | 2018-08-24 |
| CN108442413B true CN108442413B (en) | 2024-04-26 |
Family
ID=63205758
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810538824.2A Active CN108442413B (en) | 2018-05-30 | 2018-05-30 | Prefabricated tunnel wall horizontal seam reinforcing structure and splicing method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108442413B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111424711B (en) * | 2020-05-25 | 2021-08-06 | 张华军 | Subway open-cut assembled tunnel structure and assembling method thereof |
| CN111424712B (en) * | 2020-05-25 | 2021-09-10 | 张华军 | Subway open-cut assembled tunnel structure and assembling method thereof |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4697955A (en) * | 1982-07-30 | 1987-10-06 | Le Clerco Pierre A L M G | Method of constructing reinforced concrete works such as underground galleries, road tunnels, et cetera; pre-fabricated contrete elements for constructing such works |
| CN201981552U (en) * | 2011-03-24 | 2011-09-21 | 江苏新筑预应力工程有限公司 | Underground garage structure system with large-span prestressed reinforced concrete frame |
| CN103835283A (en) * | 2014-03-25 | 2014-06-04 | 东南大学 | All-wet-joint precast prestressed underground continuous wall and construction method thereof |
| CN104120713A (en) * | 2014-07-30 | 2014-10-29 | 中国一冶集团有限公司 | Device and method for embedding assembled type steel box reserved hole in underground diaphragm wall |
| CN104631490A (en) * | 2014-04-11 | 2015-05-20 | 深圳市市政设计研究院有限公司 | Large-caliber combined box culvert used for urban underground pipeline |
| CN204590240U (en) * | 2015-03-09 | 2015-08-26 | 沈阳建筑大学 | Assembly concrete Frame-Shear Wall precast construction |
| KR20160046750A (en) * | 2015-12-04 | 2016-04-29 | (유)이지스건설 | An expansion joint preventing water leakage in the underground structure's connecting part and constructing method thereof |
| CN105697021A (en) * | 2016-01-25 | 2016-06-22 | 济南轨道交通集团有限公司 | Prefabricated tunnel allowing tunnel shield to penetrate shallow covering riverbed and construction method |
| CN207194006U (en) * | 2017-09-14 | 2018-04-06 | 建华建材（江苏）有限公司 | A kind of prefabricated concrete retaining wall |
| CN107905251A (en) * | 2017-12-13 | 2018-04-13 | 湖南科技大学 | A kind of module prestressing force Retaining Wall and its assembly method |
| CN107989065A (en) * | 2017-11-15 | 2018-05-04 | 中交第二航务工程局有限公司 | A kind of modularization precast assembly under-traverse tunnel and its splicing structure |
| CN207419523U (en) * | 2017-09-29 | 2018-05-29 | 中铁二十三局集团建筑设计研究院有限公司 | For the splicing structure of assembled under-traverse tunnel assembling |
| CN208251176U (en) * | 2018-05-30 | 2018-12-18 | 中铁二十三局集团建筑设计研究院有限公司 | Prefabricated assembled tunnel wall horizontal joint reinforcement structure |
-
2018
- 2018-05-30 CN CN201810538824.2A patent/CN108442413B/en active Active
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4697955A (en) * | 1982-07-30 | 1987-10-06 | Le Clerco Pierre A L M G | Method of constructing reinforced concrete works such as underground galleries, road tunnels, et cetera; pre-fabricated contrete elements for constructing such works |
| CN201981552U (en) * | 2011-03-24 | 2011-09-21 | 江苏新筑预应力工程有限公司 | Underground garage structure system with large-span prestressed reinforced concrete frame |
| CN103835283A (en) * | 2014-03-25 | 2014-06-04 | 东南大学 | All-wet-joint precast prestressed underground continuous wall and construction method thereof |
| CN104631490A (en) * | 2014-04-11 | 2015-05-20 | 深圳市市政设计研究院有限公司 | Large-caliber combined box culvert used for urban underground pipeline |
| CN104120713A (en) * | 2014-07-30 | 2014-10-29 | 中国一冶集团有限公司 | Device and method for embedding assembled type steel box reserved hole in underground diaphragm wall |
| CN204590240U (en) * | 2015-03-09 | 2015-08-26 | 沈阳建筑大学 | Assembly concrete Frame-Shear Wall precast construction |
| KR20160046750A (en) * | 2015-12-04 | 2016-04-29 | (유)이지스건설 | An expansion joint preventing water leakage in the underground structure's connecting part and constructing method thereof |
| CN105697021A (en) * | 2016-01-25 | 2016-06-22 | 济南轨道交通集团有限公司 | Prefabricated tunnel allowing tunnel shield to penetrate shallow covering riverbed and construction method |
| CN207194006U (en) * | 2017-09-14 | 2018-04-06 | 建华建材（江苏）有限公司 | A kind of prefabricated concrete retaining wall |
| CN207419523U (en) * | 2017-09-29 | 2018-05-29 | 中铁二十三局集团建筑设计研究院有限公司 | For the splicing structure of assembled under-traverse tunnel assembling |
| CN107989065A (en) * | 2017-11-15 | 2018-05-04 | 中交第二航务工程局有限公司 | A kind of modularization precast assembly under-traverse tunnel and its splicing structure |
| CN107905251A (en) * | 2017-12-13 | 2018-04-13 | 湖南科技大学 | A kind of module prestressing force Retaining Wall and its assembly method |
| CN208251176U (en) * | 2018-05-30 | 2018-12-18 | 中铁二十三局集团建筑设计研究院有限公司 | Prefabricated assembled tunnel wall horizontal joint reinforcement structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108442413A (en) | 2018-08-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103334422A (en) | Assembled embedded type prefabricated hollow underground continuous wall and construction method thereof | |
| CN105484142A (en) | Assembling type sectional precast concrete hollow plate girder structure and manufacturing method thereof | |
| CN113513041B (en) | Assembled multi-layer flat-top large-span pillar-free underground structure and open excavation construction method thereof | |
| CN104532953A (en) | 3D printing based assembly type special-shaped column framework structure and construction method thereof | |
| CN108442413B (en) | Prefabricated tunnel wall horizontal seam reinforcing structure and splicing method | |
| CN111364679A (en) | Assembled reinforced concrete structure post and connected node | |
| CN112411355A (en) | Steel-concrete composite bridge and construction method thereof | |
| CN207998860U (en) | A kind of assembled pipe gallery | |
| CN113073540A (en) | Pile-beam integrated fully-prefabricated assembled bridge substructure, bridge and construction method thereof | |
| CN203334270U (en) | Mountable buried type prefabricated hollow underground diaphragm wall | |
| CN215977351U (en) | Reinforced framework foundation structure and supporting mechanism | |
| CN215406163U (en) | Assembled multilayer flat-top large-span pillar-free underground structure | |
| CN110552706A (en) | Permanent-temporary combined shield hoisting hole sealing structure and method | |
| CN110565510A (en) | Prefabricated assembled segmental pier structure and construction method thereof | |
| CN113186811A (en) | Pier is assembled in horizontal piecemeal prefabrication based on wet seam | |
| CN111636316A (en) | Block spliced precast concrete box culvert and construction process thereof | |
| CN112921994A (en) | Lattice beam structure and construction method thereof | |
| CN115162357B (en) | Continuous wall system with top-down construction and construction method | |
| CN204551897U (en) | With the steel framework post of joint type linkage | |
| CN111074767A (en) | Double-block type prefabricated assembled anti-collision guardrail and construction method | |
| CN216893135U (en) | Assembled concrete connection structure through segmentation rebar connection | |
| CN110344442A (en) | A kind of prefabricated assembled railway open cut tunnel and its construction method | |
| CN115094949A (en) | Construction method of assembly type subway station with permanently-adjacent combination of enclosure and main body | |
| CN113294175A (en) | Construction method of tunnel secondary lining structure and tunnel secondary lining structure | |
| CN210658451U (en) | Open cut method composite assembly formula underground structure |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |