A reinforced GFRP assembled octagonal cable well and its construction method

Abstract

The present invention discloses a field relating to electric power construction technology, particularly a reinforced GFRP assembled octagonal cable well and a construction method thereof. Components of the reinforced GFRP assembled octagonal cable well of the present invention are made of a new lightweight GFRP material, and weigh only 1 / 4-1 / 3 of the weight of a traditional concrete cable well of the same size, thereby reducing the weight of the cable well and facilitating transportation and installation. By adopting a whole-piece side panel assembly method, the number of components and the number of joints are reduced, thereby improving the installation efficiency and waterproofing capability of the prefabricated cable well. By introducing columns, beams and annular beam supports to jointly form a support system, the integrity, stability and safety of the prefabricated cable well are improved, and the ability of the side panels to bear soil pressure and the cover plate to bear vertical loads is guaranteed. Under the premise of ensuring the structural performance of the cable well, the components are modularized and lightweight, and the cable well has the characteristics of being economical, reasonable, convenient to transport and convenient to construct.

Description

Technical Field

[0001] The present invention relates to the technical field of electric power construction, in particular to a reinforced GFRP assembled octagonal cable well and a construction method thereof. Background Art

[0002] The cast-in-place reinforced concrete cable well commonly used in the existing technology is constructed by on-site formwork, tying steel bars, and pouring concrete. It has the disadvantages of long construction period, obvious influence of climate on the construction period, large fluctuation in construction quality, low degree of mechanization, high labor intensity for workers, great difficulty in project management, and disadvantages of being not conducive to environmental protection.

[0003] Existing prefabricated concrete cable shafts suffer from issues such as excessive overall weight and difficulty in hoisting and transporting. For example, Patent No. 201621226722.X describes a prefabricated cable shaft comprising a prefabricated shaft body, a prefabricated shaft cover, and a prefabricated floor. These prefabricated shaft body, prefabricated shaft cover, and prefabricated floor are all made of reinforced concrete. This excessive weight necessitates the use of large machinery, making hoisting and transportation difficult and inconvenient for construction.

[0004] Another example is patent number 201911273785.9, a prefabricated and assembled lightweight GFRP octagonal cable well and its construction method. It has too many components, a large installation workload, is not conducive to waterproofing, and components such as the bottom plate, side panels, and columns need to be optimized, and the overall structural stability is poor. Summary of the Invention

[0005] The purpose of the present invention is to provide a reinforced GFRP assembled octagonal cable well and a construction method thereof, which, while meeting the structural load-bearing and functional requirements, reduces the weight of the cable well, reduces the number of assembled parts and the number of joints, improves construction efficiency and waterproofing ability, and improves the integrity and stability of the prefabricated cable well.

[0006] The technical solutions for achieving the purpose of the present invention are:

[0007] A reinforced GFRP assembled octagonal cable well, characterized in that it includes a bottom plate, columns, side plates, beams, cover plates, hollow short anchor columns and annular beam supports; a hollow short anchor column is provided at the center of the bottom plate, the hollow short anchor column is connected to the bottom end of the column, and an annular beam support is provided at the top of the column; eight side plates are provided on the bottom plate, and the eight side plates are arranged in an octagon, the bottom end of each side plate is fixedly connected to the bottom plate, and the two adjacent side plates are fixedly connected; a beam is provided between each side plate and the annular beam support, and the cover plate is laid on the beam; the columns, beams and annular beam supports together constitute the support system of the cable well; the bottom plate, columns, side plates, beams, cover plates, hollow short anchor columns and annular beam supports are all made of GFRP material.

[0008] As a preferred technical solution of the present invention, the base plate includes a first base plate, a second base plate and a third base plate. The first base plate, the second base plate and the third base plate are spliced ​​into an octagonal base plate. One end of the second base plate is connected to the first base plate, and the other end of the second base plate is connected to the third base plate. A hollow short anchor column is fixed on the second base plate.

[0009] As a preferred technical solution of the present invention, the column adopts a hollow structure, and an annular beam support is fixed to the top of the column. Eight notches are evenly arranged on the annular beam support to facilitate the installation of the beam.

[0010] As a preferred technical solution of the present invention, a number of reinforcing ribs are evenly arranged on the outer facade of each side panel, a crossbeam support is provided on the inner facade of each side panel, and arc chamfers are provided at both ends of each side panel. After two adjacent side panels are assembled, the arc chamfers form a vertical column.

[0011] As a preferred technical solution of the present invention, the crossbeam adopts a hollow structure, one end of the crossbeam is connected to the side plate, and the other end of the crossbeam is connected to the annular crossbeam support.

[0012] As a preferred technical solution of the present invention, the cover plate includes a first cover plate, a second cover plate and a third cover plate, the first cover plate, the second cover plate and the third cover plate are combined into an octagonal cover plate, and the first cover plate, the second cover plate and the third cover plate all adopt a grid structure.

[0013] A method for constructing a reinforced GFRP assembled octagonal cable well, characterized by comprising the following steps:

[0014] Step 1: Connect one end of the second bottom plate to the first bottom plate, and the other end of the second bottom plate to the third bottom plate, to form an octagonal bottom plate of the required size.

[0015] Step 2: Fix the column to the center of the base plate through the hollow short anchor column;

[0016] Step 3: Fix the side panels to the edge of the bottom plate with GFRP bolts. The side panels are arranged in an octagonal shape.

[0017] Step 4: Tightly connect the two adjacent side panels with GFRP bolts;

[0018] Step 5: Connect one end of the beam to the beam support on the side panel, and the other end of the beam to the notch on the annular beam support;

[0019] Step six: Lay the cover plate on the beam and glue waterproof tape on all joints to complete the construction of the octagonal cable well.

[0020] Compared with the prior art, the present invention has the following significant advantages:

[0021] (1) The components of the reinforced GFRP assembled octagonal cable well of the present invention are made of new lightweight GFRP material, and the weight is only 1 / 4-1 / 3 of the weight of a traditional concrete cable well of the same size, which reduces the weight of the cable well and facilitates transportation and installation.

[0022] (2) The reinforced GFRP assembled octagonal cable well of the present invention adopts the method of assembling the side panels in one piece, which reduces the number of parts and the number of joints, improves the integrity, stability and safety of the prefabricated cable well, and ensures the ability of the side panels to bear the soil pressure and the cover plate to bear the vertical load.

[0023] (3) The columns, beams and annular beam supports in the reinforced GFRP assembled octagonal cable well of the present invention together constitute a support system, which improves the safety and stability of the cable well under lateral soil pressure and vertical load.

[0024] (4) The reinforced GFRP assembled octagonal cable well of the present invention modularizes and lightweights the components while ensuring the structural performance of the cable well, and has the characteristics of being economical, reasonable, convenient to transport and easy to construct. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0026] Figure 1 This is a schematic structural diagram of the reinforced GFRP assembled octagonal cable well of the present invention.

[0027] Figure 2 This is a schematic structural diagram of the reinforced GFRP assembled octagonal cable well bottom plate of the present invention.

[0028] Figure 3 This is a schematic structural diagram of the reinforced GFRP assembled octagonal cable well column of the present invention.

[0029] Figure 4 This is a schematic structural diagram of the reinforced GFRP assembled octagonal cable well side plate of the present invention.

[0030] Figure 5 This is a schematic structural diagram of the reinforced GFRP assembled octagonal cable well crossbeam of the present invention.

[0031] Figure 6 This is a schematic structural diagram of the reinforced GFRP assembled octagonal cable well cover of the present invention. DETAILED DESCRIPTION

[0032] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0033] Example 1:

[0034] like Figure 1 As shown, a reinforced GFRP assembled octagonal cable well includes a base plate 1, a column 2, a side plate 3, a beam 4, a cover plate 5, a hollow short anchor column 6 and an annular beam support 7; a hollow short anchor column 6 is fixed at the center of the base plate 1, the hollow short anchor column 6 is connected to the bottom end of the column 2, and an annular beam support 7 is provided at the top of the column 2; eight side plates 3 are provided on the base plate 1, and the eight side plates 3 are arranged in an octagon, the bottom end of each side plate 3 is fixedly connected to the base plate 1, and the two adjacent side plates 3 are fixedly connected; a beam 4 is provided between each side plate 3 and the annular beam support 7, and the cover plate 5 is laid on the beam 4; the columns 2, beams 4 and annular beam supports 7 together constitute the support system of the cable well; the base plate 1, column 2, side plate 3, beams 4, cover plate 5, hollow short anchor column 6 and annular beam support 7 are all made of GFRP material.

[0035] like Figure 2 As shown, the base plate 1 includes a first base plate 8, a second base plate 9 and a third base plate 10. The first base plate 8, the second base plate 9 and the third base plate 10 are spliced ​​into an octagonal base plate. One end of the second base plate 9 is connected to the first base plate 8 through a tongue and groove or a notch, and the other end of the second base plate 9 is connected to the third base plate 10 through a tongue and groove or a notch. A hollow short anchor column 6 is fixed on the second base plate 9, and the outer diameter of the hollow short anchor column 6 is slightly smaller than the inner diameter of the hollow column 2.

[0036] like Figure 3 As shown, the column 2 adopts a hollow structure, and an annular beam support 7 is fixed to the top of the column 2. Eight notches 11 are evenly arranged on the annular beam support 7 to facilitate the installation of the beam 4; the column 2 supports the cover plate 5 through the beam 4.

[0037] like Figure 4As shown, each side panel 3 is evenly distributed with several reinforcing ribs 12 on its exterior surface, and a crossbeam support 13 is provided on its interior surface. Each side panel 3 is provided with curved chamfers 14 at both ends. When two adjacent side panels 3 are assembled, these curved chamfers function as vertical columns. The reinforced GFRP fabricated octagonal cable well of the present invention utilizes a single-piece assembly of side panels, reducing the number of components and joints. The reinforcing ribs 12 and curved chamfers 14 on the side panels 3 both provide reinforcement.

[0038] like Figure 5 As shown, the cross beam 4 adopts a hollow structure, one end of the cross beam 4 is connected to the side panel 3, and the other end of the cross beam 4 is connected to the annular cross beam support 7. The hollow cross beam 4 of the reinforced GFRP assembled octagonal cable well of the present invention is light in weight and plays the role of supporting the side panel 3 and the cover plate 5.

[0039] like Figure 6 As shown, the cover plate 5 includes a first cover plate 15, a second cover plate 16 and a third cover plate 17. The first cover plate 15, the second cover plate 16 and the third cover plate 17 are combined into an octagonal cover plate. The first cover plate 15, the second cover plate 16 and the third cover plate 17 all adopt a grid structure, which reduces the material consumption and thus reduces the construction cost of the cable well.

[0040] All components of the reinforced GFRP assembled octagonal cable well of the present invention are manufactured by a vacuum infusion molding method and have good integrity and stability.

[0041] A method for constructing a reinforced GFRP assembled octagonal cable well comprises the following steps:

[0042] Step 1: Connect one end of the second bottom plate 9 to the first bottom plate 8 through a tongue and groove or notch, and connect the other end of the second bottom plate 9 to the third bottom plate 10 through a tongue and groove or notch to form a whole octagonal bottom plate 1 of the required size;

[0043] Step 2: Fix the column 2 to the center of the base plate 1 through the hollow short anchor column 6;

[0044] Step 3: Fix the side panels 3 to the edge of the bottom plate 1 with GFRP bolts. The side panels 3 are arranged in an octagonal shape.

[0045] Step 4: Tightly connect two adjacent side panels 3 with GFRP bolts;

[0046] Step 5: Connect one end of the crossbeam 4 to the crossbeam support 13 on the side panel 3, and the other end of the crossbeam 4 to the notch 11 on the annular crossbeam support 7;

[0047] Step six: lay the cover plate 5 on the beam 4 and glue waterproof tape on all the joints to complete the construction of the octagonal cable well.

[0048] In summary, the various components of the reinforced GFRP assembled octagonal cable well of the present invention are made of a new lightweight GFRP material, and the weight is only 1 / 4-1 / 3 of the weight of a traditional concrete cable well of the same size, which reduces the weight of the cable well and is convenient for transportation and installation. The reinforced GFRP assembled octagonal cable well of the present invention adopts a whole-piece side panel assembly method, which reduces the number of parts and the number of joints, and improves the installation efficiency and waterproofing ability of the prefabricated cable well. The columns, beams and annular beam supports in the reinforced GFRP assembled octagonal cable well of the present invention together constitute a support system, which improves the integrity, stability and safety of the prefabricated cable well, and ensures the ability of the side panels to bear soil pressure and the cover plate to bear vertical loads. The reinforced GFRP assembled octagonal cable well of the present invention modularizes and lightweights the components while ensuring the structural performance of the cable well, and has the characteristics of being economical, reasonable, convenient to transport and convenient to construct.

[0049] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or substitute equivalents for some of the technical features. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A reinforced GFRP assembled octagonal cable well, characterized in that: The invention comprises a bottom plate (1), a column (2), a side plate (3), a cross beam (4), a cover plate (5), a hollow short anchor column (6) and an annular cross beam support (7); a hollow short anchor column (6) is provided at the center of the bottom plate (1), the hollow short anchor column (6) is connected to the bottom end of the column (2), and an annular cross beam support (7) is provided at the top end of the column (2); eight side plates (3) are provided on the bottom plate (1), and the eight side plates (3) are arranged in an octagonal shape, and the bottom end of each side plate (3) is connected to the bottom plate (2). The plates (1) are fixedly connected, and two adjacent side plates (3) are fixedly connected; a crossbeam (4) is provided between each side plate (3) and the annular crossbeam support (7), and the cover plate (5) is laid on the crossbeam (4); the columns (2), the crossbeam (4) and the annular crossbeam support (7) together constitute the support system of the cable well; the bottom plate (1), the columns (2), the side plates (3), the crossbeam (4), the cover plate (5), the hollow short anchor column (6) and the annular crossbeam support (7) are all Made of GFRP material; the base plate (1) comprises a first base plate (8), a second base plate (9) and a third base plate (10); the first base plate (8), the second base plate (9) and the third base plate (10) are spliced ​​together to form an octagonal base plate; one end of the second base plate (9) is connected to the first base plate (8), and the other end of the second base plate (9) is connected to the third base plate (10); a hollow short anchor column (6) is fixed to the second base plate (9); the column (2) adopts a hollow structure, An annular crossbeam support (7) is fixed to the top of the column (2), and eight notches (11) are evenly arranged on the annular crossbeam support (7) to facilitate the installation of the crossbeam (4); a plurality of reinforcing ribs (12) are evenly arranged on the outer facade of each side panel (3), and a crossbeam support (13) is arranged on the inner facade of each side panel (3). Both ends of each side panel (3) are provided with arc chamfers (14), and after two adjacent side panels (3) are assembled, the arc chamfers form a vertical column function.

2. The reinforced GFRP assembled octagonal cable well according to claim 1, characterized in that: The crossbeam (4) adopts a hollow structure, one end of the crossbeam (4) is connected to the side plate (3), and the other end of the crossbeam (4) is connected to the annular crossbeam support (7).

3. The reinforced GFRP assembled octagonal cable well according to claim 1, characterized in that: The cover plate (5) comprises a first cover plate (15), a second cover plate (16) and a third cover plate (17); the first cover plate (15), the second cover plate (16) and the third cover plate (17) are combined into an octagonal cover plate; the first cover plate (15), the second cover plate (16) and the third cover plate (17) all adopt a grid structure.

4. A method for constructing a reinforced GFRP assembled octagonal cable well according to claim 1, characterized in that: The following steps are involved: Step 1: Connect one end of the second bottom plate (9) to the first bottom plate (8), and connect the other end of the second bottom plate (9) to the third bottom plate (10), and splice them into a whole octagonal bottom plate (1) of the required size; Step 2: Fix the column (2) to the center of the base plate (1) by inserting the hollow short anchor column (6); Step 3: Fix the side panels (3) to the edge of the bottom panel (1) by means of GFRP bolts, and arrange the side panels (3) in an octagonal shape; Step 4: tightly connect the two adjacent side panels (3) with GFRP bolts; Step 5: Connect one end of the crossbeam (4) to the crossbeam support (13) on the side plate (3), and connect the other end of the crossbeam (4) to the notch (11) on the annular crossbeam support (7); Step 6: Lay the cover plate (5) on the beam (4) and glue all the joints with waterproof tape to complete the construction of the octagonal cable well.

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