CN110616647A - Full-prefabricated sliding assembled culvert and construction process thereof - Google Patents

Full-prefabricated sliding assembled culvert and construction process thereof Download PDF

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Publication number
CN110616647A
CN110616647A CN201910919037.7A CN201910919037A CN110616647A CN 110616647 A CN110616647 A CN 110616647A CN 201910919037 A CN201910919037 A CN 201910919037A CN 110616647 A CN110616647 A CN 110616647A
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CN
China
Prior art keywords
culvert
steel plate
block
precast concrete
corrugated 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.)
Pending
Application number
CN201910919037.7A
Other languages
Chinese (zh)
Inventor
骆强
冯晓楠
张建东
李加朋
胡广华
刘朵
侯攀峰
戴文斌
管玉见
王志峰
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Henan Puxin Expressway Construction Co Ltd
JSTI Group Co Ltd
Original Assignee
Henan Puxin Expressway Construction Co Ltd
JSTI Group Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Henan Puxin Expressway Construction Co Ltd, JSTI Group Co Ltd filed Critical Henan Puxin Expressway Construction Co Ltd
Priority to CN201910919037.7A priority Critical patent/CN110616647A/en
Publication of CN110616647A publication Critical patent/CN110616647A/en
Pending legal-status Critical Current

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Classifications

    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01FADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
    • E01F5/00Draining the sub-base, i.e. subgrade or ground-work, e.g. embankment of roads or of the ballastway of railways or draining-off road surface or ballastway drainage by trenches, culverts, or conduits or other specially adapted means
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D29/00Independent underground or underwater structures; Retaining walls
    • E02D29/16Arrangement or construction of joints in foundation structures

Abstract

The invention relates to the technical field of culverts, in particular to a full-prefabricated sliding assembled culvert and a construction process thereof, wherein the full-prefabricated sliding assembled culvert comprises a prefabricated concrete bottom plate, a corrugated steel plate tunnel body and a connecting block; the precast concrete bottom plate is provided with a rail groove, the cross section of the rail groove is in an inverted T shape and penetrates through two side surfaces of the precast concrete bottom plate; the connecting block is fixed at two arch feet of the corrugated steel plate hole body, and the cross section of the connecting block is in an inverted T shape matched with the rail groove; the connecting block connected with the arch springing of the corrugated steel plate hole body penetrates into the rail groove and is fixed and formed. According to the construction process of the culvert, in the construction of the culvert in a complex terrain, the precast concrete bottom plate is hoisted to a preset position, the defect of difficulty in on-site construction is overcome, and the construction process of a cast-in-place culvert foundation is reduced; the assembled corrugated steel plate hole body penetrates through the reserved rail groove, so that the assembling precision is ensured, and the hoisting is facilitated; the water-swelling water stop strip and other waterproof projects greatly improve the durability and the service life of the corrugated steel plate prefabricated culvert.

Description

Full-prefabricated sliding assembled culvert and construction process thereof
Technical Field
The invention relates to the technical field of culverts, in particular to a full-prefabricated sliding assembled culvert and a construction process thereof.
Background
Culverts and channels, as one of the important components in road engineering, have a considerable weight, both in terms of the number of projects and in terms of the construction costs. Because a cast-in-place process is generally adopted, although the cast-in-place construction method has the advantages of firm structure, simple construction and the like, the cast-in-place construction method occupies more labor force during construction, has longer construction period and higher requirement on the foundation and is difficult to repair after being damaged. The existing precast concrete culvert generally needs foundation treatment, and the self weight of the concrete is large, so that the requirements on site hoisting conditions and splicing construction are high.
In view of the existing defects, the designer actively makes research and innovation based on the practical experience and professional knowledge which are abundant for many years in the design and manufacture of the products and by matching with the application of the theory, so as to create the fully-prefabricated sliding assembled culvert and the construction process thereof, and the fully-prefabricated sliding assembled culvert is more practical. After continuous research and design and repeated trial production and improvement, the invention with practical value is finally created.
Disclosure of Invention
The invention mainly aims to overcome the defects of the existing concrete culvert, and provides a full-prefabricated sliding assembled culvert and a construction process thereof, which can accelerate the construction period and facilitate the construction.
The purpose of the invention and the technical problem to be solved are realized by adopting the following technical scheme.
One aspect of the present invention provides a fully prefabricated sliding assembled culvert, comprising: prefabricating a concrete bottom plate, a corrugated steel plate hole body and a connecting block;
the precast concrete bottom plate is provided with a rail groove, the cross section of the rail groove is in an inverted T shape and penetrates through two side faces of the precast concrete bottom plate;
the connecting block is fixed at two arch feet of the corrugated steel plate hole body, and the cross section of the connecting block is in an inverted T shape matched with the rail groove;
and the connecting block connected with the arch springing of the corrugated steel plate hole body penetrates into the rail groove and is fixedly formed.
Preferably, a connecting piece is arranged at the arch foot of the corrugated steel plate hole body; the connecting block is formed by pouring concrete after welding the connecting piece at the arch foot of the corrugated steel plate hole body.
Preferably, a steel plate is embedded in the bottom of the connecting block and used for avoiding concentrated stress from damaging the connecting block.
Preferably, the bottom of the rail groove is provided with a steel ball and a steel ball track, the steel ball track extends along the length direction of the rail groove, the steel ball is arranged in the steel ball track, and when the connecting block penetrates into the rail groove, the steel ball is in contact with the connecting block and rolls, so that the friction force when the connecting block penetrates is reduced.
Preferably, the precast concrete base plate is provided with a prestressed tensioning hole which is communicated with the side surface of the precast concrete base plate, and the prestressed tensioning holes on the two precast concrete base plates are aligned and fastened with an anchorage device through prestressed tendons.
Preferably, the joint of the connecting block and the rail groove and the joint of the precast concrete bottom plate are provided with water-swelling rubber water stop strips.
Preferably, waterproof coiled materials are paved on the surface of the precast concrete bottom plate.
Preferably, the side wall of the corrugated steel plate hole body is provided with a hanging ring, and two ends of the corrugated steel plate hole body are provided with connecting holes for longitudinal connection of the corrugated steel plate hole body.
Another aspect of the present invention provides a construction process of a fully prefabricated sliding assembled culvert, comprising the following operation steps,
determining the specification of a prefabricated component of the prefabricated corrugated steel plate culvert according to design and construction requirements;
preparing corresponding precast concrete bottom plates and corrugated steel plate hole bodies in a prefabricating factory, and integrating the welding connecting pieces and the connecting blocks;
transporting the precast concrete bottom plates with corresponding quantity and specification and the assembled integral components to a construction site, placing the precast concrete bottom plates at preset positions, connecting the precast concrete bottom plates into an integral foundation by using prestress tensioning, and performing sealing and waterproof treatment on joints of the precast concrete bottom plates;
enabling the assembled integral structure to pass through a steel ball track in the precast concrete bottom plate and placing steel balls, and enabling the combined member to slide to a preset position and be fixed; and sealing and waterproofing treatment is carried out on the joint;
the two arch sets are screwed and connected through connecting holes by bolts;
backfilling the top and two sides of the tunnel, and compacting to a specified compactness;
paving the waterproof coiled material, and pouring a concrete slope to finish the construction step.
By the technical scheme, the fully-prefabricated sliding assembled culvert and the construction process thereof at least have the following advantages:
according to the fully-prefabricated sliding assembled culvert and the construction process thereof, in the construction of the arch bridge with the complex terrain, the prefabricated concrete bottom plate is hoisted to the preset position, the defect of difficulty in on-site construction is overcome, and the construction process of a cast-in-place culvert foundation is reduced; the assembled corrugated steel plate hole body passes through the reserved rail groove, so that the assembling precision is ensured, and the hoisting is facilitated; the connection of the high-strength bolt ensures the integral strength of the corrugated steel plate hole body; the water-swelling water stop strip and other waterproof projects greatly improve the durability and the service life of the corrugated steel plate prefabricated culvert; the corrugated steel plate prefabricated culvert can adapt to various complex terrains and large settlement, deformation and different roadbed filling heights, the formed components can be assembled on site, the manufacturing process is simple, and the manufacturing cost is low.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic perspective view of a fully prefabricated sliding assembled culvert in an embodiment of the invention;
FIG. 2 is a schematic cross-sectional view of a fully prefabricated slip-assembled culvert in an embodiment of the present invention;
FIG. 3 is an enlarged view of a portion of FIG. 2 in accordance with an embodiment of the present invention;
FIG. 4 is a sectional view taken along line B-B of FIG. 2 in accordance with an embodiment of the present invention;
FIG. 5 is a top view of FIG. 2 in an embodiment of the present invention;
fig. 6 is a sectional view taken along the direction C-C of fig. 2 in accordance with an embodiment of the present invention.
Reference numerals: the steel ball type water-resistant steel-reinforced concrete floor slab comprises 1-a prestress tensioning hole, 2-a steel ball track, 3-a connecting block, 4-a corrugated steel plate hole body, 5-a lifting ring, 6-a precast concrete bottom plate, 7-a connecting piece, 9-a slope, 10-a prestress rib, 11-a waterproof coiled material, 12-an anchorage device, 13-a steel ball, 14-a water-swelling rubber water stop bar, 15-a connecting hole, 16-a steel plate and 61-a rail groove.
Detailed Description
To further explain the technical means and effects of the present invention adopted to achieve the predetermined object, the following detailed description of the embodiments of the present invention is given with reference to the accompanying drawings and preferred embodiments.
In the following paragraphs, different aspects of the embodiments are defined in more detail. Aspects so defined may be combined with any other aspect or aspects unless clearly indicated to the contrary. In particular, any feature considered to be preferred or advantageous may be combined with one or more other features considered to be preferred or advantageous.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", "front", "rear", "inner" and "outer" and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description of the present invention, and do not indicate or imply that the device referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the scope of the present invention.
The full prefabricated sliding assembled culvert shown in figure 1 comprises: the prefabricated concrete bottom plate 6, the corrugated steel plate hole body 4 and the connecting block 3;
the precast concrete bottom plate 6 is provided with a rail groove 61, and the cross section of the rail groove 61 is in an inverted T shape and penetrates through two side surfaces of the precast concrete bottom plate 6; the rail groove 61 is used for allowing the arch foot of the corrugated steel plate hole body 4 to pass through and be fixed. In addition, steps are arranged on two sides of the precast concrete bottom plate 6, and the steps are used for better bearing the thrust brought by the arch feet of the corrugated steel plate hole body 4.
The connecting block 3 is fixed at two arch feet of the corrugated steel plate hole body 4, and the cross section of the connecting block 3 is in an inverted T shape matched with the rail groove 61; after connecting block 3 is connected with corrugated steel plate hole body 4, penetrate to rail groove 61 in, the size of connecting block 3 suits with rail groove 61 for connecting block 3 does not take place to rock after penetrating, thereby has further improved corrugated steel plate hole body 4 and precast concrete bottom plate 6's stability of being connected.
The connecting block 3 connected with the arch springing of the corrugated steel plate hole body 4 penetrates into the rail groove 61 and is fixed and formed. As shown in fig. 2, after the connecting block 3 is fixed to the corrugated steel plate hole 4, the arch of the corrugated steel plate hole 4 is inserted into the rail groove 61 from the side of the precast concrete floor 6. This kind of fixed mode that slides because each component is the prefabrication shaping, the transportation installation all comparatively convenient and fast, has also shortened installation period when being convenient for construct greatly.
Preferably, as shown in fig. 3, a connecting piece 7 is arranged at the arch springing of the corrugated steel plate hole body 4; the connecting block 3 is formed by pouring concrete after welding a connecting piece 7 at the arch foot of the corrugated steel plate hole body 4. The connecting piece 7 is used for increasing the contact area with the connecting block 3, so that the arch springing of the corrugated steel plate hole body 4 is more firmly and reliably fixed. After the connecting piece 7 is fixed on the arch springing of the corrugated steel plate hole body, the mould is used for pouring concrete for forming, and the connecting piece 7 is fixed in the connecting block 3 to form a whole.
In order to further improve the structural strength of the connecting block 3, please continue to refer to fig. 3, a steel plate 16 is embedded in the bottom of the connecting block 3, and the steel plate 16 is used to prevent concentrated stress from damaging the connecting block 3. Because the corrugated steel plate hole body 4 has the shape characteristic, the arch foot can apply an outward force to the inside of the connecting block 3 after the fixing, and the steel plate 16 arranged at the bottom of the connecting block 3 can increase the overall strength of the connecting block 3 in order to prevent the connecting block 3 from being damaged by concentrated stress.
In order to facilitate the sliding of the connecting block 3, please refer to fig. 3 again, the steel ball 13 and the steel ball rail 2 are disposed at the bottom of the rail groove 61, the steel ball rail 2 extends along the length direction of the rail groove 61, the steel ball 13 is disposed in the steel ball rail 2, and when the connecting block 3 penetrates into the rail groove 61, the steel ball 13 contacts and rolls with the connecting block 3 to reduce the friction force when the connecting block 3 penetrates. The steel ball track 2 is of an I-shaped steel structure, the I-shaped steel structure is convenient to obtain and install, when the steel ball track is installed, the height of the upper surface of the I-shaped steel is lower than that of the upper surface of the steel ball 13, and the height of the I-shaped steel is larger than the diameter of the steel ball 13, so that the steel ball 13 can roll conveniently.
As shown in figure 4, the full-prefabricated sliding assembled corrugated steel plate culvert in the embodiment of the invention is formed by connecting a plurality of sections, the prefabricated concrete bottom plate 6 is provided with the prestress tensioning holes 1, the prestress tensioning holes 1 are communicated with the side surface of the prefabricated concrete bottom plate 6, and the prestress tensioning holes 1 on the two prefabricated concrete bottom plates 6 are aligned and fastened through the prestress ribs 10 and the anchorage devices 12. Specifically, referring to fig. 1, 2 and 4, the prestressed tensioning hole 1 is provided with an upward opening and is also communicated with the side wall of the precast concrete floor 6, the upward opening is used for placing an anchorage device 12, and a hole communicated with the side wall is used for allowing a prestressed tendon 10 to pass through, as shown in fig. 4, two ends of the prestressed tendon 10 are fastened by using anchorage devices 12, and two sections of precast concrete floors 6 are fixed together by tensioning the anchorage devices. It should be noted that the anchor 12 is referred to as an anchor for pre-stressing and tensioning concrete, and is known in the art and will not be described herein.
In order to improve the waterproof performance of the culvert, with continued reference to fig. 3 and 4, the joint of the connecting block 3 and the rail groove 61 and the joint of the two precast concrete bottom plates 6 are provided with the water-swelling rubber water stop strips 14.
Further, waterproof rolls 11 are paved on the surface of the precast concrete floor 6.
In order to facilitate the hoisting and splicing of the corrugated steel plate hole body 4, as shown in fig. 2, 5 and 6, the side wall of the corrugated steel plate hole body 4 is provided with a hoisting ring 5, and two ends of the corrugated steel plate hole body 4 are provided with connecting holes 15 for connecting the corrugated steel plate hole body 4. When the lifting appliance is used for lifting the corrugated steel plate hole body 4, the lifting appliance hook and the lifting rings 5 fixed on the corrugated steel plate hole body 4 can be directly lifted, and the lifting rings 5 are symmetrically arranged to prevent overlarge deformation of the corrugated steel plate hole body 4 during lifting. After the corrugated steel plate hole bodies 4 are installed, two corrugated steel plate hole bodies 4 are required to be connected together, as shown in fig. 6, the corrugations of the corrugated steel plate hole bodies 4 can be overlapped at the joints to align the connecting holes 15, and then the bolts are used for screwing.
The construction process of the full-prefabricated sliding assembled culvert provided by the embodiment of the invention comprises the following operation steps:
determining the specification of a prefabricated component of the prefabricated corrugated steel plate culvert according to design and construction requirements; the specification is determined according to the size of the culvert, and the relevant components are designed according to the size of the culvert, wherein the relevant components refer to a precast concrete bottom plate 6, a corrugated steel plate cave body 4, a connecting piece 7, a connecting piece 3 and the like.
In a prefabrication factory, preparing corresponding precast concrete bottom plates 6 and corrugated steel plate hole bodies 4, and integrating welding connecting pieces 7 and connecting blocks 3; the connecting piece 7 can be directly welded at the arch springing of the corrugated steel plate hole body 4, and can also be fixed by using a fastener. After the connecting piece 7 is fixed, the connecting piece 3 is fixed and formed by pouring concrete by using a mould.
Transporting the precast concrete bottom plates 6 with corresponding quantity and specification and the assembled integral components to a construction site, placing the precast concrete bottom plates 6 at preset positions, connecting the precast concrete bottom plates into an integral foundation by using prestress tensioning, and performing sealing and waterproof treatment on joints of the precast concrete bottom plates;
enabling the assembled integral structure to pass through the steel ball track 2 in the precast concrete bottom plate 6 and placing the steel balls 13, and enabling the combined member to slide to a preset position and be fixed; and sealing and waterproofing treatment is carried out on the joint;
the two arch sets are screwed and connected through a connecting hole 15 by a bolt;
backfilling the top and two sides of the tunnel, and compacting to a specified compactness;
paving the waterproof coiled material 11, and pouring the concrete slope 9 to finish the construction step.
It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (9)

1. The utility model provides a culvert is assembled in full prefabrication slip which characterized in that includes: the prefabricated concrete bottom plate (6), the corrugated steel plate hole body (4) and the connecting block (3);
the precast concrete bottom plate (6) is provided with a rail groove (61), the cross section of the rail groove (61) is in an inverted T shape and penetrates through two side faces of the precast concrete bottom plate (6);
the connecting block (3) is fixed at two arch feet of the corrugated steel plate hole body (4), and the cross section of the connecting block (3) is in an inverted T shape matched with the rail groove (61);
and the connecting block (3) connected with the arch springing of the corrugated steel plate hole body (4) penetrates into the rail groove (61) and is fixedly formed.
2. The full-prefabricated sliding assembled culvert according to claim 1, wherein a connecting piece (7) is arranged at the arch springing of the corrugated steel plate culvert body (4); the connecting block (3) is formed by pouring concrete after the corrugated steel plate hole body (4) arch foot is welded with the connecting piece (7).
3. The full-prefabricated slip-assembled culvert according to claim 2, wherein steel plates (16) are embedded at the bottom of the connecting blocks (3), and the steel plates (16) are used for avoiding concentrated stress from damaging the connecting blocks (3).
4. The full-prefabricated sliding assembled culvert according to claim 1, wherein the bottom of the rail groove (61) is provided with a steel ball (13) and a steel ball track (2), the steel ball track (2) extends along the length direction of the rail groove (61), the steel ball (13) is arranged in the steel ball track (2), and when the connecting block (3) penetrates into the rail groove (61), the steel ball (13) is in contact with the connecting block (3) and rolls, so that the friction force when the connecting block (3) penetrates is reduced.
5. The full precast skid assembled culvert according to any one of claims 1 ~ 4, wherein the precast concrete floor (6) is provided with prestressed tensioning holes (1), the prestressed tensioning holes (1) are communicated with the side surfaces of the precast concrete floor (6), and the prestressed tensioning holes (1) on the two precast concrete floor (6) are aligned and fastened through prestressed tendons (10) and anchorage devices (12).
6. The full-prefabricated slip-assembled culvert according to claim 5, wherein water-swelling rubber water stops (14) are arranged at the joint of the connecting block (3) and the rail groove (61) and the joint of the two prefabricated concrete bottom plates (6).
7. The full precast skid assembled culvert according to claim 5, wherein the precast concrete floor (6) is paved with waterproof coiled materials (11).
8. The full-prefabricated sliding assembled culvert according to claim 5, wherein the side wall of the corrugated steel plate culvert body (4) is provided with a hanging ring (5), and two ends of the corrugated steel plate culvert body (4) are provided with connecting holes (15) for longitudinal connection of the corrugated steel plate culvert body (4).
9. The construction process of the full-prefabricated sliding assembled culvert is characterized by comprising the following operation steps of:
determining the specification of a corrugated steel plate culvert prefabricated part according to design and construction requirements;
in a prefabrication factory, preparing corresponding precast concrete bottom plates (6) and corrugated steel plate hole bodies (4), and integrating welding connecting pieces (7) and connecting blocks (3);
transporting the precast concrete bottom plates (6) with corresponding quantity and specification and the assembled integral components to a construction site, placing the precast concrete bottom plates (6) at preset positions, connecting the precast concrete bottom plates into an integral foundation by using prestress tensioning, and performing sealing and waterproof treatment on the joints of the precast concrete bottom plates (6);
enabling the assembled integral structure to pass through a steel ball track (2) in a precast concrete bottom plate (6) and placing steel balls (13) so as to enable the combined member to slide to a preset position and be fixed; and sealing and waterproofing treatment is carried out on the joint;
the two arch sets are screwed and connected through a connecting hole (15) by a bolt;
backfilling the top and two sides of the tunnel, and compacting to a specified compactness;
paving a waterproof coiled material (11), and pouring a concrete slope (9) to finish the construction step.
CN201910919037.7A 2019-09-26 2019-09-26 Full-prefabricated sliding assembled culvert and construction process thereof Pending CN110616647A (en)

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CN201910919037.7A CN110616647A (en) 2019-09-26 2019-09-26 Full-prefabricated sliding assembled culvert and construction process thereof

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CN109826647A (en) * 2019-03-08 2019-05-31 中铁十九局集团第三工程有限公司 Cut-and-cover tunnel section precast lining construction method
CN110230322A (en) * 2019-06-10 2019-09-13 孙自强 A kind of pipe gallery prefabricated component

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