CN212578849U - Bipartition type prefabricated pipe joint combined template - Google Patents

Abstract

The utility model provides a prefabricated tube coupling built-up plate of bi-section formula, include: the bottom die is arranged on the ground; the inner die is arranged on the bottom die and encloses a closed pattern; the outer die is arranged on the bottom die and arranged on the outer side of the inner die in a surrounding manner, and a gap is formed between the outer die and the inner die to form a filling area; the end mould sets up in the filling area, and the end mould is including setting up first end mould and the second end mould at the relative both ends of filling area respectively, and first end mould and second end mould all include two parallel arrangement's end plate, the both sides of end plate respectively with the outer wall of centre form and the inner wall butt of external mold to make first end mould and second end mould form one respectively with centre form and external mold and reserve cast-in-place district, the filling area includes one and pours the district and reserve cast-in-place district, it is filled with the concrete to pour the district intussuseption. The pipe joint is prefabricated in a bisectional mode by arranging the end die, and the problems of production, transportation and hoisting of the large-section pipe joint are solved.

Description

Bipartition type prefabricated pipe joint combined template

Technical Field

The utility model relates to a push pipe tube coupling makes technical field, especially relates to a prefabricated tube coupling built-up plate of dichotomous formula.

Background

Pipe jacking construction is a non-excavation construction method, and overcomes the friction force between a pipeline and surrounding soil by means of jacking force generated by jacking equipment in a working pit, pipe joints are jacked into the soil according to a designed gradient, the earth is conveyed away, after one pipe joint is jacked into the soil layer, the pipe joint is jacked into the soil layer continuously by a second pipe joint, and therefore a plurality of pipe joints are jacked into the soil in sequence. The large-section jacking pipe (the clearance section area is between 50 square meters and 100 square meters) is widely applied to the construction of street-crossing underground passages, underground pipe galleries and travelling crane passages, along with the progress of the jacking pipe construction technology, the requirements and the design of the jacking pipe section are increasingly large, the construction speed of the jacking pipe is also increasingly high, and therefore sufficient pipe joint supply needs to be ensured.

The pipe joint used for pipe-jacking construction mainly has two production modes, one mode is production on site in a construction site, the other mode is prefabricated production in a factory, and then the finished pipe joint is transported to the construction site. For the on-site production mode, a construction site is required to have enough space for storing the pipe joints, and many construction sites do not have enough space for manufacturing and storing the pipe joints. And to the mode of factory prefabrication production, it is comparatively difficult to transport the tube coupling to the job site from the place of production, especially along with the section size of push pipe tunnel tube coupling is bigger and bigger, and thickness is bigger and bigger, and weight is bigger and bigger, and the requirement is higher and higher to hoisting equipment etc. still receives road traffic's influence easily, and the efficiency of construction is low.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a prefabricated tube coupling built-up plate of bi-section formula can prefabricate the tube coupling with the mode of bi-section formula, has solved the problem of production, transportation and hoist and mount of big section tube coupling.

In order to achieve the above object, the utility model provides a prefabricated tube coupling built-up plate of bi-section formula, include:

the bottom die is arranged on the ground;

the inner die is arranged on the bottom die and encloses a closed pattern;

the outer die is arranged on the bottom die and arranged on the outer side of the inner die in a surrounding mode, and a gap is formed between the outer die and the inner die to form a filling area;

the end mould is arranged in the filling area and comprises a first end mould and a second end mould which are respectively arranged at two opposite ends of the filling area, the first end mould and the second end mould respectively comprise two end plates which are arranged in parallel, two sides of each end plate are respectively abutted against the outer wall of the inner mould and the inner wall of the outer mould so that the first end mould and the second end mould respectively form a reserved cast-in-place area with the inner mould and the outer mould, the filling area comprises a pouring area and the reserved cast-in-place area, and concrete is filled in the pouring area.

Optionally, the first end mold and the second end mold are symmetrically arranged about a center of the filling area.

Optionally, a first reinforcement cage and a second reinforcement cage are symmetrically arranged in the filling area, the first reinforcement cage includes a plurality of first reinforcements arranged in parallel, the second reinforcement cage includes a plurality of second reinforcements arranged in parallel, and two ends of the first reinforcements and two ends of the second reinforcements respectively penetrate through corresponding end plates on the first end mold and the second end mold and then are mutually overlapped in the reserved cast-in-place area.

Optionally, the end plates are of an integrally formed structure, each end plate is provided with a plurality of through holes, and two ends of the first steel bar and two ends of the second steel bar respectively penetrate through the corresponding through holes and then are mutually overlapped in the reserved cast-in-place area.

Optionally, the end plate is formed by transversely splicing a plurality of strip-shaped plates, a through hole is formed in a splicing seam of at least two adjacent strip-shaped plates, and two ends of the first steel bar and two ends of the second steel bar respectively penetrate through the corresponding through holes and then are mutually overlapped in the reserved cast-in-place area.

Optionally, be located be provided with the recess on two strip shaped plates of end plate both sides, be located the both sides correspondence of the strip shaped plate in the middle of the end plate is provided with arch and recess, and when two adjacent strip shaped plates splice, the protruding card on a strip shaped plate goes into in the recess on another strip shaped plate.

Optionally, a plurality of connecting plates are arranged on the end plate along the vertical direction, and the connecting plates are in threaded connection with each strip-shaped plate.

Optionally, the bottom mold comprises a grid area and an annular area surrounding the grid area, and the annular area, the inner mold and the outer mold enclose the filling area.

Optionally, a plurality of positioning round tables are arranged on the annular area, and the positioning round tables are upwards protruded from the upper surface of the annular area.

Optionally, the prefabricated tube coupling composite formworks of dichotomous formula still includes:

the upright post frame is positioned in the grid area, and the bottom of the upright post frame is in contact with the ground;

the adjusting screw comprises a plurality of adjusting screws, each adjusting screw comprises three connecting seats and two connecting rods used for connecting the three connecting seats, the three connecting seats are respectively arranged on the upper surfaces of the upright post frame, the inner die and the outer die, the connecting seats on the inner die are respectively connected with the connecting seats on the upright post frame and the outer die through the two connecting rods, and the distance between the inner die and the outer die is adjusted by adjusting the length of the connecting rods between the inner die and the outer die.

Optionally, the cross sections of the inner die and the outer die along the horizontal direction are both rectangular or circular.

Optionally, the inner mold and the outer mold are formed by splicing two symmetrically arranged mold plates.

Optionally, the template is U-shaped.

Optionally, a water stop rubber strip is arranged at the splicing position of the two templates.

Optionally, the bottom of the template is provided with a plurality of pulleys and a plurality of locking assemblies, the template passes through the pulleys and moves on the bottom die, and the locking assemblies are used for fixing the template on the bottom die.

The utility model provides a prefabricated tube coupling built-up plate of bi-section type is prefabricated with the mode with the tube coupling with bi-section type through setting up the end mould, has solved the problem of production, transportation and hoist and mount of big section tube coupling. In addition, because the production of the pipe joint adopts a mode of partial prefabrication and partial cast-in-place, the pipe joint can be industrially produced quickly and efficiently, and the progress of the project is ensured.

Drawings

Fig. 1-2 are top views of two-section type prefabricated pipe joint combination templates provided by embodiments of the present invention;

fig. 3 is a top view of a bottom mold according to an embodiment of the present invention;

fig. 4-5 are schematic views of end plates provided by embodiments of the present invention;

fig. 6 is a step diagram of a method for manufacturing a two-part prefabricated pipe section according to an embodiment of the present invention;

wherein the reference numerals are:

100-bottom die; 110-grid area; 120-a ring-shaped zone; 130-positioning the circular truncated cone; 200-an inner mold; 300-external mold; 410-a first end mold; 420-a second end mold; 430-a strip; 440-a via hole; 450-a connecting plate; 510-reserving a cast-in-place area; 520-a pouring area; 610-a first rebar cage; 620-a second rebar cage; 700-a column frame; 800-adjusting the screw.

Detailed Description

The following description of the embodiments of the present invention will be described in more detail with reference to the drawings. Advantages and features of the present invention will become apparent from the following description and claims. It should be noted that the drawings are in simplified form and are not to precise scale, and are provided for convenience and clarity in order to facilitate the description of the embodiments of the present invention.

As shown in fig. 1-2, the present embodiment provides a two-section type prefabricated pipe section combination formwork, including:

a bottom mold 100 disposed on a ground;

the inner mold 200 is arranged on the bottom mold 100 and encloses a closed pattern;

the outer die 300 is arranged on the bottom die 100 and surrounds the outer side of the inner die 200, and a gap is formed between the outer die 300 and the inner die 200 to form a filling area;

the end molds are arranged in the filling area and comprise a first end mold 410 and a second end mold 420 which are respectively arranged at two opposite ends of the filling area, each of the first end mold 410 and the second end mold 420 comprises two end plates which are arranged in parallel, two sides of each of the end plates are respectively abutted against the outer wall of the inner mold 200 and the inner wall of the outer mold 300, so that the first end mold 410 and the second end mold 420 respectively form a reserved cast-in-place area 510 with the inner mold 200 and the outer mold 300, the filling area comprises a pouring area 520 and the reserved cast-in-place area 510, and the pouring area 520 is filled with concrete.

Specifically, the halved prefabricated pipe joint combined template is used for producing pipe joints for manufacturing jacking pipes, and the halved prefabricated pipe joint combined template refers to that the pipe joints are divided into two parts and prefabricated in a factory at the same time to obtain two pipe joint blocks, and then the two pipe joint blocks are separately transported to a field to be connected into an integral pipe joint.

Referring to fig. 3, fig. 3 is a top view of a bottom mold according to an embodiment of the present invention, the bottom mold 100 is placed on a flat ground, and a gap between the bottom mold 100 and the ground of the ground cannot be formed, and if there is a gap, the bottom mold must be filled to ensure the levelness of the bottom mold 100. In this embodiment, the bottom mold 100 may be an integral body, or may be assembled by two mold plates, which is not limited in this application. If the bottom die 100 is needed for subsequent on-site assembly, the bottom die 100 can be formed by splicing two templates and connected in a bolt connection mode in consideration of transportation problems. The bottom die 100 can be formed by welding steel plates, and a bottom die seat can be arranged on the lower portion of the bottom die 100 to ensure the stability of the bottom die, which is not limited in the application.

Referring to fig. 3, the bottom mold 100 includes a grid region 110 and an annular region 120 surrounding the grid region, and the annular region 120, the inner mold 200 and the outer mold 300 enclose the filling region.

The annular area 120 is provided with a plurality of positioning round platforms 130, and the positioning round platforms 110 protrude upwards from the upper surface of the annular area 120. The positioning round table 130 is used for forming a positioning groove for positioning at the bottom of the cast pipe joint block, and when two pipe joint blocks need to be connected subsequently, the positioning groove can be used for positioning the pipe joint blocks so as to improve the connection efficiency. In this embodiment, the number of the positioning circular truncated cones 130 is 8, and the 8 positioning circular truncated cones are symmetrically distributed about the center line of the bottom die. Of course, the number and distribution of the positioning circular truncated cones 130 are not limited in this application.

The inner mold 200 and the outer mold 300 are both disposed on the bottom mold 100 and used for enclosing a filling area. It will be appreciated that the inner and outer dies 200, 300 may enclose different shapes depending on the shape of the pipe section that is desired to be produced. For example, if the cross-sectional shape of the pipe joint along the horizontal direction is a rectangle or a circle, the shapes of the inner mold 200 and the outer mold 300 are also a rectangle or a circle, and the shape enclosed by the inner mold 200 and the outer mold 300 is also a rectangle or a circle. In this embodiment, referring to fig. 1, the overall shape of the pipe joint is rectangular, and the inner mold 200 and the outer mold 300 are also rectangular. The inner mold 200 and the outer mold 300 may be fixed to the bottom mold 100 by a detachable connection manner such as a bolt connection or a snap connection.

Optionally, a plurality of stiffening plates may be disposed on both the inner wall of the inner mold 200 and the outer wall of the outer mold 300 to enhance the rigidity and strength of the inner mold 200 and the outer mold 300.

The inner mold 200 and the outer mold 300 may be formed by splicing two mold plates, or may be formed by splicing one mold plate or a plurality of mold plates, which is not limited in this application. In this embodiment, the inner mold 200 and the outer mold 300 are formed by splicing two U-shaped templates, and the splicing position of the two templates is provided with a water stop rubber strip to prevent the leakage at the splicing position of the templates during concrete pouring and influence the pouring effect.

In this embodiment, the bottom of the template is provided with a plurality of pulleys and a plurality of locking assemblies, the template moves on the bottom die 100 through the pulleys, and the locking assemblies are used for fixing the template on the bottom die 100. Because the inner mold 200 and the outer mold 300 are formed by splicing two templates, pulleys are arranged at the bottoms of the templates of the inner mold 200 and the outer mold 300 so as to splice the inner mold 200 and the outer mold 300, and after the inner mold 200 and the outer mold 300 are spliced in place, the templates are fixed by the locking assemblies so as to be convenient for subsequent pouring.

With continued reference to fig. 1-2, the end forms are disposed within the fill area to divide the fill area into two sections to facilitate forming two pipe segment blocks. In this embodiment, the end molds include a first end mold 410 and a second end mold 420 respectively disposed at two opposite ends of the filling area, each of the first end mold 410 and the second end mold 420 includes two end plates disposed in parallel, two sides of each of the end plates respectively abut against an outer wall of the inner mold 200 and an inner wall of the outer mold 300, so that the first end mold 410 and the second end mold 420 respectively form a reserved cast-in-place area 510 with the inner mold 200 and the outer mold 300, and when prefabricating in a factory, concrete needs to be filled in a part of the filling area except the reserved cast-in-place area 510 to form two pipe joint blocks. The reserved cast-in-place area 510 is used for transporting the two pipe section blocks to a construction site, splicing the two pipe section blocks into a prefabricated shape and a prefabricated relative position, and then casting concrete in the reserved cast-in-place area 510 to connect the two pipe section blocks. The pipe joint is prefabricated in a bisectional mode by arranging the end die, and the problems of production, transportation and hoisting of the large-section pipe joint are solved. In addition, because the production of the pipe joint adopts a mode of partial prefabrication and partial cast-in-place, the pipe joint can be industrially produced quickly and efficiently, and the progress of the project is ensured.

In this embodiment, the first end mold 410 and the second end mold 420 are symmetrically disposed about the center of the filling region. Equivalently, the filling area is divided into two parts with the same shape, so that the standardized production of the pipe section blocks is realized, and the splicing of the subsequent pipe section blocks is facilitated. In this embodiment, since the cross section of the pipe joint along the horizontal direction is rectangular, the first end mold 410 and the second end mold 420 may be disposed on the short sides of the rectangle and located at the middle point of the short sides.

In this embodiment, the number of the reserved cast-in-place areas 510 is two, and the two reserved cast-in-place areas are symmetrically arranged at two ends of the filling area.

With reference to fig. 1-2, a first reinforcement cage 610 and a second reinforcement cage 620 are symmetrically disposed in the filling area, the first reinforcement cage 610 includes a plurality of first reinforcements arranged in parallel, the second reinforcement cage 620 includes a plurality of second reinforcements arranged in parallel, and two ends of the first reinforcements and two ends of the second reinforcements respectively penetrate through corresponding end plates on the first end mold 410 and the second end mold 420 and then are overlapped in the reserved cast-in-place area 510. Since the compressive strength of concrete is high but the tensile strength is low. The concrete is restrained by arranging the reinforcement cage in the concrete filling area, so that the concrete can bear certain axial tension and the tensile strength of the concrete is improved.

In this embodiment, the first reinforcement cage and the second reinforcement cage are also U-shaped, and the reinforcement of the first reinforcement cage 610 and the reinforcement of the second reinforcement cage 620 are staggered and in contact with each other in the reserved cast-in-place area 510. Concrete is poured in the reserved cast-in-place area 510 in a lap joint mode so as to facilitate subsequent field construction, two pipe sections can be connected together in a blocking and tight mode without additionally performing connection modes such as welding and the like, and the pipe sections have enough connection strength.

In this embodiment, the reinforcing bars extending out of the two ends of the first reinforcing bar respectively penetrate through the two end plates of the first end mold 410 and the second end mold 420 located on the same side, and the two ends of the second reinforcing bar respectively penetrate through the other two end plates of the first end mold 410 and the second end mold 420 located on the same side, so as to overlap the two reserved cast-in-place areas 510.

It will be appreciated that the relative positions of the two tube sections when prefabricated at the factory and the two tube sections when joined in situ should be consistent so that the reinforcement in the first reinforcement cage 610 and the second reinforcement cage 620 within the reserved cast-in-place section 510 will also remain in a consistent overlapping position.

As shown in fig. 4, the end plates may be an integrally formed structure, each of the end plates is provided with a plurality of through holes, and both ends of the first steel bar and both ends of the second steel bar respectively penetrate through the corresponding through holes and then are overlapped with each other in the reserved cast-in-place area 510. When the bottom die is of a splicing structure, the distance between the first end die and the second end die can be adjusted after the end plates penetrate through the corresponding first reinforcing steel bars and the corresponding second reinforcing steel bars in advance.

Or, as shown in fig. 5, the end plate is formed by transversely splicing a plurality of strip-shaped plates 430, through holes 440 are formed in the splicing seams of at least two adjacent strip-shaped plates 430, and the two ends of the first steel bar and the two ends of the second steel bar respectively penetrate through the corresponding through holes 440 and then are mutually overlapped in the reserved cast-in-place area 510. The partial strip-shaped plates 430 are provided with semicircular gaps, and the semicircular gaps on two adjacent strip-shaped plates 430 are matched to form a complete through hole 440. Specifically, during the splicing, the outer mold 300 may be sequentially assembled from one side thereof to one side thereof where the inner mold 200 is located, or may be sequentially assembled from one side thereof where the inner mold 200 is located to one side thereof where the outer mold 300 is located, which is not limited in this application. Through the mode can be when the die block sets up through the mode of concatenation equipment when being the integrated into one piece structure the end plate has very strong practicality.

Of course, one of the end plates of the first end mold 410 or the second end mold 420 may be an integrally formed structure, and the other end plate may be a splicing structure, which may also improve the installation efficiency of the first end mold 410 and the second end mold 420, so that different schemes may be selected according to actual situations.

Further, be located be provided with the recess on two strip plates 430 of end plate both sides, be located the both sides correspondence of strip plate 430 in the middle of the end plate is provided with arch and recess, and when two adjacent strip plates 430 splice, the protruding card on one strip plate 430 is gone into in the recess on another strip plate 430. The tenon-and-mortise connection is formed by the protrusions and the grooves, so that the two loud bar-shaped plates 430 are connected more closely, and the spliced end plate is not easy to seep water and leak slurry.

Referring to fig. 5, a plurality of connecting plates 450 are vertically disposed on the end plate, and the connecting plates 450 are in threaded connection with each of the strip-shaped plates 430. The strip-shaped plates 430 are further fixed by the connecting plate 450, so that the connection strength between the strip-shaped plates 430 and the shape of the end plate are ensured.

With continued reference to fig. 1-2, the two-part prefabricated pipe section combination formwork further includes:

the upright post frame 700 is positioned in the grid area 110, and the bottom of the upright post frame is in contact with the ground so as to fix the upright post frame 700 and prevent the bottom die 100 from expanding when the concrete is poured to affect the position of the upright post frame 700;

each adjusting screw 800 comprises three connecting seats and two connecting rods used for connecting the three connecting seats, the three connecting seats are respectively arranged on the upper surfaces of the upright post frame 700, the inner die 200 and the outer die 300, the connecting seats on the inner die 200 are respectively connected with the connecting seats on the upright post frame 700 and the outer die 300 through the two connecting rods, and the distance between the inner die 200 and the outer die 300 is adjusted by adjusting the lengths of the connecting rods between the inner die 200 and the outer die 300.

The post frame 700 is used to provide a supporting point for the inner mold 200 to abut against the inner mold 200 from the inside to the outside. In this embodiment, the pillar stand 700 can be formed by welding square pipes and section steel, and the pillar stand 700 and the bottom die base can be detachably connected by bolts.

The adjustment screw 800 adjusts the spacing between the inner mold 200 and the outer mold 300, it being understood that when filling concrete in the casting area 520, an inward force is applied to the inner mold 200 and an outward force is applied to the outer mold 300, and that an opposite force can be applied to the inner mold 200 and the outer mold 300 by the adjustment screw 800 to secure the spacing between the inner mold 200 and the outer mold 300, thereby securing the shape of the pipe segment. For example, the connecting rod is locked by a nut after passing through a connecting seat on the outer mold 300, and the length of the connecting rod between the inner mold 200 and the outer mold 300 is adjusted by rotating the nut, so that a counter force is applied to the inner mold 200 and the outer mold 300.

Based on this, with reference to fig. 1 to 6, the present application also provides a method for manufacturing a two-part prefabricated pipe section, which is performed by using the two-part prefabricated pipe section combination template, and includes:

step S1: fixing the bottom die 100 on the ground and correcting the levelness of the bottom die 100;

step S2: sequentially mounting an inner die 200 and an outer die 300 on the bottom die 100, and enabling the outer die 300 to be arranged on the outer side of the inner die 200 in a surrounding manner, wherein a gap is formed between the outer die 300 and the inner die 200 to form a filling area;

step S3: arranging end molds in the filling area, wherein each end mold comprises a first end mold 410 and a second end mold 420 which are respectively arranged at two opposite ends of the filling area, each first end mold 410 and each second end mold 420 comprise two end plates which are arranged in parallel, two sides of each end plate are respectively abutted against the outer wall of the inner mold 200 and the inner wall of the outer mold 300, so that the first end mold 410 and the second end mold 420 respectively form a reserved cast-in-place area 510 together with the inner mold 200 and the outer mold 300, and the filling area is composed of a pouring area 520 and the reserved cast-in-place area 510;

step S4: and pouring concrete into the pouring area 520 to form the two-part prefabricated pipe section.

Specifically, step S1 is performed first, the bottom mold 100 is fixed on a ground and the levelness of the bottom mold 100 is corrected, and there is no gap between the bottom mold 100 and the ground, and if there is a gap, the bottom mold 100 must be filled to ensure the levelness of the bottom mold 100.

In this embodiment, the bottom die 100 includes a grid region 110 and an annular region 120 surrounding the grid region 110, the two-part prefabricated pipe joint combined template further includes a column frame 700 and a plurality of adjusting screws 800, and the adjusting screws 800 include three connecting seats and two connecting rods for connecting the three connecting seats.

Next, step S2 is executed, where step S2 specifically includes:

step S21: placing the stud frame 700 within the grid section 110 and having the bottom of the stud frame 700 extend through the grid of the grid section 110 to be secured to the ground;

step S22: the inner mold 200 is installed at the outer side of the column frame 700;

step S23: the outside symmetry of centre form 200 sets up first steel reinforcement cage 610 and second steel reinforcement cage 620, first steel reinforcement cage includes many parallel arrangement's first reinforcing bar, the second steel reinforcement cage includes many parallel arrangement's second reinforcing bar, makes the both ends of first reinforcing bar with the both ends of second reinforcing bar run through respectively first end mould reaches behind the end plate that corresponds on the second end mould overlap joint each other in the reservation cast-in-place district.

Step S24: mounting the outer mold 300 outside the inner mold 200 such that the annular region 120 encloses the filled region with the inner mold 200 and the outer mold 300;

step S25: the adjusting screw 800 is installed, the three connecting seats are respectively arranged on the upper surfaces of the column frame 700, the inner mold 200 and the outer mold 300, two connecting rods are respectively connected with the three connecting seats, and the distance between the inner mold 200 and the outer mold 300 is adjusted by adjusting the lengths of the connecting rods between the inner mold 200 and the outer mold 300.

Steps S21-S25 are performed in sequence, and when step S23 is performed, the corresponding mounting method and mounting sequence are selected according to the structure of the end plate. For example, when the end plates only adopt an integrally formed structure, as shown in fig. 4, the bottom die 100 may be designed to be a structure formed by splicing two templates, a certain distance is maintained between the templates of the two bottom dies, then the first reinforcement cage 610, the first end die 410 and the second end die 420 are arranged at the outer side of the inner die 200 and located at two end plates at two ends of the first reinforcement cage 610, then the second reinforcement cage 620, the first end die 410 and the second end die 420 are arranged and located at two end plates at two ends of the second reinforcement cage 620, and the templates of the two bottom dies 100 are moved to enable the first reinforcement cage 610 and the second reinforcement cage to be overlapped in a crossing manner. Or, when the end plate is only formed by transversely splicing a plurality of strip plates 430, as shown in fig. 5, the first reinforcement cage 610 and the second reinforcement cage 620 may be respectively mounted on the bottom die 100 and overlapped, and then the end plate may be correspondingly spliced at two ends of the first reinforcement cage 610 and the second reinforcement cage 620. Or, the first end mold 410 and the second end mold 420 are both a combination of two kinds of end plates, that is, the two kinds of end plates shown in fig. 4 and 5, the first reinforcement cage 610 and the integrally formed end plates at both ends thereof may be installed in the bottom mold, then the second reinforcement cage 620 may be installed, at this time, the first reinforcement cage 610 and the second reinforcement cage 620 are already overlapped, then the assembled end plates are installed at both ends of the second reinforcement cage 620, and both ends of the first reinforcement cage 610 and the second reinforcement cage 620 correspondingly support the end plates. Accordingly, the present application is not limited to the order of installation of the first reinforcement cage 610, the second reinforcement cage 620, the first end form 410, and the second end form 420.

After the inner mold 200 and the outer mold 300 are installed in step S25, the length of the connecting rod between the inner mold 200 and the outer mold 300 is adjusted by the adjusting screw 800, so as to ensure the verticality of the inner mold 200 and the outer mold 300.

After the step S25 is performed, a step S3 is performed to set an end mold in the filling region. Adjusting the positions of the end plates of the first end mold 410 and the second end mold 420, wherein the two sides of the end plates are respectively abutted against the outer wall of the inner mold 200 and the inner wall of the outer mold 300, so that the first end mold 410 and the second end mold 420 respectively form a reserved cast-in-place area 510 with the inner mold 200 and the outer mold 300.

Finally, step S3 is performed to cast concrete into the casting area 520 to form a two-part prefabricated pipe section. And equivalently, pouring concrete into the filling area except the part reserved with the cast-in-place area 510, and curing to obtain two pipe joint blocks.

In the embodiment, the embedded parts and the hanging rings are arranged in the pipe joint blocks, so that subsequent hoisting is facilitated, and the specific positions are not particularly described according to hoisting requirements; at the same time, attention should be paid to the following when the concrete is vibrated:

1) quick insertion, slow withdrawal and no dependence. The concrete is vibrated to realize quick insertion and slow pulling so as to avoid leaving gaps in the concrete. Thirdly, the method does not depend on: and strictly preventing the steel bars, the embedded parts and the templates from being collided during vibration.

2) The concrete distribution is carried out in a layered mode, the thickness of each layer of the concrete distribution is controlled to be about 30cm when the concrete is distributed, and the vibration of the upper layer concrete and the lower layer concrete requires that a vibration rod is inserted into the lower layer concrete for 10cm, so that the upper layer concrete and the lower layer concrete are combined into a whole;

3) the vibration time is based on that concrete does not obviously sink any more, no air bubble appears and the slurry begins to spread, and the distance between the front and the rear insertion is preferably not more than 40 cm.

4) The parts difficult to vibrate are particularly paid attention to avoid the leakage vibration, the under vibration and the over vibration of the vibrator;

5) the upper end face of the pipe joint after vibration molding needs to be compacted and polished, the end face needs to be smooth and flat, the surface is polished for at least 2 times, and the time interval needs to be adjusted according to the weather temperature.

The pipe joint blocks can be disassembled above 30% of the design strength, the joint opening of the inner mold and the outer mold is opened firstly during the mold disassembly, so that the inner mold, the outer mold and the pipe joint blocks are completely separated, and the damage to the template and the pipe joint is avoided as much as possible during the mold disassembly.

To sum up, the utility model provides a prefabricated tube coupling built-up plate of dichotomous formula, prefabricated tube coupling built-up plate of dichotomous formula includes: the bottom die is arranged on the ground; the inner die is arranged on the bottom die and encloses a closed pattern; the outer die is arranged on the bottom die and arranged on the outer side of the inner die in a surrounding mode, and a gap is formed between the outer die and the inner die to form a filling area; the end mould is arranged in the filling area and comprises a first end mould and a second end mould which are respectively arranged at two opposite ends of the filling area, the first end mould and the second end mould respectively comprise two end plates which are arranged in parallel, two sides of each end plate are respectively abutted against the outer wall of the inner mould and the inner wall of the outer mould so that the first end mould and the second end mould respectively form a reserved cast-in-place area with the inner mould and the outer mould, the filling area comprises a pouring area and the reserved cast-in-place area, and concrete is filled in the pouring area. The pipe joint is prefabricated in a bisectional mode by arranging the end die, and the problems of production, transportation and hoisting of the large-section pipe joint are solved. In addition, because the production of the pipe joint adopts a mode of partial prefabrication and partial reservation and cast-in-place, the pipe joint can be industrially produced quickly and efficiently, and the progress of the project is ensured.

The above description is only for the preferred embodiment of the present invention, and does not limit the present invention. Any technical personnel who belongs to the technical field, in the scope that does not deviate from the technical scheme of the utility model, to the technical scheme and the technical content that the utility model discloses expose do the change such as the equivalent replacement of any form or modification, all belong to the content that does not break away from the technical scheme of the utility model, still belong to within the scope of protection of the utility model.

Claims (15)

1. The utility model provides a prefabricated tube coupling built-up plate of bi-section formula which characterized in that includes:

the bottom die is arranged on the ground;

the inner die is arranged on the bottom die and encloses a closed pattern;

the outer die is arranged on the bottom die and arranged on the outer side of the inner die in a surrounding mode, and a gap is formed between the outer die and the inner die to form a filling area;

the end mould is arranged in the filling area and comprises a first end mould and a second end mould which are respectively arranged at two opposite ends of the filling area, the first end mould and the second end mould respectively comprise two end plates which are arranged in parallel, two sides of each end plate are respectively abutted against the outer wall of the inner mould and the inner wall of the outer mould so that the first end mould and the second end mould respectively form a reserved cast-in-place area with the inner mould and the outer mould, the filling area comprises a pouring area and the reserved cast-in-place area, and concrete is filled in the pouring area.

2. The two-part prefabricated pipe section composite formwork of claim 1, wherein the first end form and the second end form are symmetrically disposed about a center of the filling zone.

3. The prefabricated pipe section composite formwork of claim 1, wherein a first reinforcement cage and a second reinforcement cage are symmetrically arranged in the filling area, the first reinforcement cage comprises a plurality of first reinforcements arranged in parallel, the second reinforcement cage comprises a plurality of second reinforcements arranged in parallel, and two ends of the first reinforcements and two ends of the second reinforcements respectively penetrate through corresponding end plates on the first end mold and the second end mold and then are overlapped in the reserved cast-in-place area.

4. The prefabricated pipe section composite formwork of claim 3, wherein the end plates are of an integrally formed structure, each end plate is provided with a plurality of through holes, and two ends of the first reinforcing steel bar and two ends of the second reinforcing steel bar respectively penetrate through the corresponding through holes and then are overlapped in the reserved cast-in-place area.

5. The prefabricated two-section pipe section combined formwork according to claim 3, wherein the end plate is formed by transversely splicing a plurality of strip-shaped plates, through holes are formed in splicing seams of at least two adjacent strip-shaped plates, and two ends of the first reinforcing steel bar and two ends of the second reinforcing steel bar are respectively overlapped in the reserved cast-in-place area after penetrating through the corresponding through holes.

6. The prefabricated tube section composite formwork of claim 5, wherein two strip-shaped plates at two sides of the end plate are provided with grooves, two sides of a strip-shaped plate in the middle of the end plate are correspondingly provided with bulges and grooves, and when two adjacent strip-shaped plates are spliced, the bulges on one strip-shaped plate are clamped into the grooves on the other strip-shaped plate.

7. The prefabricated pipe section sectional composite formwork of claim 5, wherein a plurality of connecting plates are vertically arranged on the end plates, and the connecting plates are in threaded connection with each strip-shaped plate.

8. The prefabricated two-part pipe section composite formwork of claim 1, wherein the bottom formwork comprises a mesh zone and an annular zone surrounding the mesh zone, and the annular zone, the inner formwork and the outer formwork enclose the filling zone.

9. The prefabricated pipe section built-up template of claim 8, wherein a plurality of positioning bosses are arranged on the annular area, and the positioning bosses protrude upwards from the upper surface of the annular area.

10. The two-part prefabricated pipe section composite formwork of claim 8, wherein the two-part prefabricated pipe section composite formwork further comprises:

the upright post frame is positioned in the grid area, and the bottom of the upright post frame penetrates through the grid area and is fixed on the ground;

the adjusting screw comprises a plurality of adjusting screws, each adjusting screw comprises three connecting seats and two connecting rods used for connecting the three connecting seats, the three connecting seats are respectively arranged on the upper surfaces of the upright post frame, the inner die and the outer die, the connecting seats on the inner die are respectively connected with the connecting seats on the upright post frame and the outer die through the two connecting rods, and the distance between the inner die and the outer die is adjusted by adjusting the length of the connecting rods between the inner die and the outer die.

11. The prefabricated pipe section composite formwork of claim 1, wherein the cross section of the inner mold and the outer mold in the horizontal direction is rectangular or circular.

12. The prefabricated pipe section sectional composite formwork of claim 11, wherein the inner formwork and the outer formwork are formed by splicing two symmetrically arranged formworks.

13. The two-part prefabricated pipe section composite formwork of claim 12, wherein said formwork is U-shaped.

14. The prefabricated tube section composite formwork of claim 12, wherein a water-stop rubber strip is arranged at the joint of the two formworks.

15. The prefabricated pipe section sectional composite formwork of claim 12, wherein the bottom of the formwork is provided with a plurality of pulleys through which the formwork moves on the bottom mold and a plurality of locking assemblies for fixing the formwork on the bottom mold.

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