An assembled combined octagonal cable well and its construction method

Abstract

The present invention relates to the field of power construction technology, and discloses an assembled combined octagonal cable well and a construction method thereof; the components of the assembled combined octagonal cable well of the present invention are made of a new lightweight GFRP material, and the mass of each component does not exceed 50 kg. Under the premise of ensuring the structural performance of the cable well, the weight of the cable well is reduced, and transportation and installation are convenient. No large machinery is required, site selection is flexible, and work efficiency is improved. The cable well has the characteristics of being economical, reasonable, convenient to transport, and convenient to construct; the cable well of the present invention adopts a reinforced panel and fine stone concrete to form a combined bottom plate, which improves the overall stiffness of the bottom plate, enhances the overall stability of the cable well, avoids the problem of uneven settlement, and can adapt to coastal soft soil foundation construction; the cable well of the present invention forms a support system through central columns, corner columns, and beams, and the force transmission path is clearer, which greatly improves the integrity and bearing capacity of the cable well.

Description

Technical Field

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

[0002] Cable wells need to be set up at the corners and branches of transmission lines to facilitate pulling cables on straight sections.

[0003] 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, and is not conducive to environmental protection.

[0004] 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 makes the structure too heavy, difficult to hoist and transport, and inconvenient to construct.

[0005] Another example is patent number 201911273785.9, which is a prefabricated and assembled lightweight GFRP octagonal cable well and its construction method. Its bottom plate has many assembled parts and weak integrity. It is prone to uneven settlement on soft foundations, thus affecting the safe use of the cable well. At the same time, there is no internal support, and when the external load is large, it may deform significantly. Summary of the Invention

[0006] The purpose of the present invention is to provide an assembled combined octagonal cable well and a construction method thereof, which reduces the weight of the cable well and improves construction efficiency by assembling GFRP profiles while meeting the structural stability and load-bearing performance of the cable well.

[0007] The technical solutions for achieving the purpose of the present invention are:

[0008] An assembled combined octagonal cable well, characterized in that it includes a bottom plate, a base, corner columns, side plates, a cover plate, a latch, a column, a crossbeam and an annular crossbeam support; a fine stone concrete layer is provided on the top surface of the bottom plate, and the bottom plate and the fine stone concrete layer form a combined bottom plate; eight bases are provided on the bottom plate, and the eight bases are arranged in an octagon; corner columns are provided on each base, and a number of side plates are provided between two adjacent corner columns, and the two adjacent side plates are fixedly connected by latches, and the side plates and the corner columns are fixedly connected by latches; a column is provided at the center of the bottom plate, and an annular crossbeam support is provided at the top of the column, and a crossbeam is provided between the annular crossbeam support and each corner column; the cover plate is laid on the crossbeam; the corner columns, columns and crossbeam together constitute the support system of the cable well; the bottom plate, base, corner columns, side plates, cover plate, latch, columns, crossbeam and annular crossbeam support are all made of GFRP material.

[0009] As a preferred technical solution of the present invention, the base plate is spliced together by several stiffening panels, and two adjacent stiffening panels are connected by tongue and groove; each stiffening panel includes a panel and several stiffening ribs, and several stiffening ribs are evenly arranged on the panel.

[0010] As a preferred technical solution of the present invention, the cross-sections of the base and the corner post are both airplane-shaped, and the base is plugged into the bottom ends of the corner post.

[0011] As a preferred technical solution of the present invention, the corner column is a hollow structure, and the wall thickness of the corner column is not less than 5 mm.

[0012] As a preferred technical solution of the present invention, the side panels are box-type side panels, and the wall thickness of the side panels is not less than 4 mm.

[0013] 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.

[0014] As a preferred technical solution of the present invention, the cross section of the latch is H-shaped.

[0015] 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.

[0016] A method for constructing an assembled combined octagonal cable well, characterized by comprising the following steps:

[0017] Step 1: Connect several stiffening panels through tongue and groove to form a whole base plate of the required size; fix eight bases to the base plate with bolts, and arrange the eight bases in an octagonal shape;

[0018] Step 2: pouring fine stone concrete on the entire base plate, so that the base plate and the fine stone concrete form a combined base plate;

[0019] Step 3: Fix the corner posts to the base by plugging them in;

[0020] Step 4: Fix the side panels to the corner posts with latches, and connect two adjacent side panels with latches;

[0021] Step 5: Install the column at the center of the base plate, secure one end of the beam to the corner column, and connect the other end of the beam to the notch on the annular beam support;

[0022] Step six: Install the cover plate on the beam and glue waterproof tape on all joints to complete the construction of the octagonal cable well.

[0023] Compared with the prior art, the present invention has the following significant advantages:

[0024] (1) The components of the assembled combined octagonal cable well of the present invention are made of new lightweight GFRP material. The mass of each component does not exceed 50 kg. While ensuring the structural performance of the cable well, the weight of the cable well is reduced, which is convenient for transportation and installation. No large machinery is required, the site selection is flexible, and work efficiency is improved. It is economical, convenient to transport, and convenient to construct.

[0025] (2) The assembled combined octagonal cable well of the present invention is made of a new lightweight GFRP material. Each component is corrosion-resistant and has good weather resistance and durability. It can be completed in one construction and does not require subsequent maintenance, which reduces maintenance costs and can adapt to coastal corrosion environments.

[0026] (3) The assembled combined octagonal cable well of the present invention adopts a reinforced panel and fine stone concrete to form a combined bottom plate, which improves the overall stiffness of the bottom plate, enhances the overall stability of the cable well, avoids the problem of uneven settlement, and is suitable for construction on coastal soft soil foundations.

[0027] (4) The assembled combined octagonal cable well of the present invention forms a support system through the central column, corner columns and cross beams, and the force transmission path is clearer, which greatly improves the integrity and bearing capacity of the cable well. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] 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.

[0029] Figure 1 This is a schematic diagram of the structure of an octagonal cable well assembled according to the present invention.

[0030] Figure 2 This is a schematic diagram of the structure of the octagonal cable well bottom plate assembled according to the present invention.

[0031] Figure 3 This is a schematic diagram of the structure of the octagonal cable well base assembled according to the present invention.

[0032] Figure 4 This is a schematic diagram of the structure of the present invention assembling the corner columns in the octagonal cable well.

[0033] Figure 5 The figure is a schematic diagram of the structure of the octagonal cable well side plate assembled according to the present invention.

[0034] Figure 6 This is a schematic diagram of the structure of the octagonal cable well cover assembled in the present invention.

[0035] Figure 7 This is a schematic diagram of the structure of the present invention in which an octagonal cable well plug is assembled.

[0036] Figure 8 This is a schematic diagram of the structure of the octagonal cable well center column assembled with the structure of the present invention.

[0037] Figure 9 This is a schematic diagram of the structure of the octagonal cable well equipped with a crossbeam according to the present invention. DETAILED DESCRIPTION

[0038] 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.

[0039] Example 1:

[0040] like Figure 1As shown, an assembled combined octagonal cable well includes a bottom plate 1, a base 2, a corner column 3, a side plate 4, a cover plate 5, a latch 9, a column 10, a crossbeam 11 and an annular crossbeam support 12; a fine stone concrete layer is provided on the top surface of the bottom plate 1, and the bottom plate 1 and the fine stone concrete layer form a combined bottom plate; eight bases 2 are provided on the bottom plate 1, and the eight bases 2 are arranged in an octagon; each base 2 is provided with a corner column 3, and a number of side plates 4 are provided between adjacent two corner columns 3, and the adjacent two side plates 4 are fixedly connected by latches 9, and the side plates 4 are fixedly connected by latches 9. The plate 4 and the corner post 3 are fixedly connected by a latch 9. A column 10 is provided at the center of the base plate 1, and an annular crossbeam support 12 is provided at the top of the column 10. A crossbeam 11 is provided between the annular crossbeam support 12 and each corner post 3. The cover plate 5 is laid on the crossbeam 11. The corner posts 3, columns 10, and crossbeams 11 together constitute the support system of the cable well. The base plate 1, base 2, corner posts 3, side plates 4, cover plate 5, latch 9, columns 10, crossbeams 11, and annular crossbeam supports 12 are all made of GFRP material. The components of the assembled combined octagonal cable well of the present invention are made of a new lightweight GFRP material. The mass of each component does not exceed 50 kg. While ensuring the structural performance of the cable well, the weight of the cable well is reduced, and it is convenient to transport and install. No large machinery is required, site selection is flexible, and work efficiency is improved. It is economical, convenient to transport, and convenient to construct.

[0041] like Figure 2 As shown, the base plate 1 is made up of several stiffening panels, and two adjacent stiffening panels are connected by tongue and groove; each stiffening panel includes a panel and several stiffening ribs, and the panel is evenly provided with several stiffening ribs; the base plate 1 is formed by pouring 100mm thick fine stone concrete to form a composite base plate, which can meet the needs of building cable wells on soft foundations.

[0042] like Figure 3 and Figure 4 As shown, the cross-sections of the base 2 and the corner column 3 are both airplane-shaped, and the base 2 is plugged into the bottom ends of the corner column 3, which facilitates construction and improves construction efficiency. The corner column 3 is a hollow structure, and the wall thickness of the corner column 3 is not less than 5 mm.

[0043] like Figure 5 As shown, the side panels 4 are box-type side panels with a wall thickness of not less than 4 mm. The use of box-type side panels greatly reduces the overall weight of the octagonal cable well.

[0044] like Figure 6 As shown, the cover plate 5 includes a first cover plate 6, a second cover plate 7 and a third cover plate 8. The first cover plate 6, the second cover plate 7 and the third cover plate 8 are combined into an octagonal cover plate. The first cover plate 6, the second cover plate 7 and the third cover plate 8 all adopt a grid structure, which reduces the material consumption and thus reduces the construction cost of the cable well.

[0045] like Figure 7 As shown, the cross section of the latch pin 9 is H-shaped.

[0046] like Figure 8 and Figure 9 As shown, the column 10 is hollow, with an annular crossbeam support 12 fixed to the top of the column 10. The annular crossbeam support 12 is evenly provided with eight notches to facilitate the installation of the crossbeam 11. One end of the crossbeam 11 is connected to the notch of the annular crossbeam support 12, and the other end of the crossbeam 11 is connected to the corner column 3.

[0047] All components of the assembled combined octagonal cable well of the present invention are manufactured by a pultrusion method and have good integrity and stability.

[0048] A method for constructing an assembled combined octagonal cable well comprises the following steps:

[0049] Step 1: Connect several stiffening panels through tongue and groove to form a whole base plate 1 of the required size; fix eight bases 2 on the base plate 1 with bolts, and arrange the eight bases 2 in an octagon;

[0050] Step 2: pouring fine stone concrete on the entire base plate 1, so that the base plate 1 and the fine stone concrete form a combined base plate;

[0051] Step 3: Fix the corner post 3 to the base 2 by plugging;

[0052] Step 4: Fix the side panels 4 to the corner posts 3 using the latches 9. The adjacent side panels 4 are fixedly connected using the latches 9.

[0053] Step 5: Install the column 10 at the center of the base plate 1, fix one end of the beam 11 to the corner column 3, and connect the other end of the beam 11 to the notch 11 on the annular beam support 12;

[0054] Step six: install the cover plate 5 on the beam 11 and glue waterproof tape on all the joints to complete the construction of the octagonal cable well.

[0055] In summary, the various components of the assembled combined octagonal cable well of the present invention are made of a new lightweight GFRP material, and the mass of each component does not exceed 50kg. Under the premise of ensuring the structural performance of the cable well, the weight of the cable well is reduced, and it is convenient for transportation and installation. No large machinery is required, the site selection is flexible, and the work efficiency is improved. It has the characteristics of being economical, reasonable, convenient to transport, and convenient to construct. The assembled combined octagonal cable well of the present invention is made of a new lightweight GFRP material, and each component is corrosion-resistant, has good weather resistance and durability, and is completed in one construction without the need for subsequent maintenance, which reduces maintenance costs and can adapt to coastal corrosion environments. The assembled combined octagonal cable well of the present invention uses a reinforced panel and fine stone concrete to form a combined bottom plate, which improves the overall stiffness of the bottom plate, enhances the overall stability of the cable well, avoids the problem of uneven settlement, and can adapt to coastal soft soil foundation construction. The assembled combined octagonal cable well of the present invention forms a support system through central columns, corner columns, and beams, and the force transmission path is clearer, which greatly improves the integrity and bearing capacity of the cable well.

[0056] 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. An assembled octagonal cable well, characterized in that: The invention comprises a bottom plate (1), a base (2), a corner column (3), a side plate (4), a cover plate (5), a latch (9), a column (10), a crossbeam (11) and an annular crossbeam support (12); a fine stone concrete layer is provided on the top surface of the bottom plate (1), and the bottom plate (1) and the fine stone concrete layer form a combined bottom plate; eight bases (2) are provided on the bottom plate (1), and the eight bases (2) are arranged in an octagonal shape; each base (2) is provided with a corner column (3), and a plurality of side plates (4) are provided between two adjacent corner columns (3), and the adjacent side plates (4) are connected by latches (9). The side panels (4) and the corner columns (3) are fixedly connected to each other through bolts (9); a column (10) is provided at the center of the bottom panel (1), an annular beam support (12) is provided at the top of the column (10), and a beam (11) is provided between the annular beam support (12) and each corner column (3); the cover panel (5) is laid on the beam (11); the corner columns (3), the columns (10) and the beam (11) together constitute the support system of the cable well; the bottom panel (1), the base (2), the corner columns (3), the side panels (4), the cover panel (5), the bolts ( 9), columns (10), beams (11) and annular beam supports (12) are all made of GFRP material; the bottom plate (1) is made of a plurality of stiffening panels, and two adjacent stiffening panels are connected by tongue and groove; each stiffening panel includes a panel and a plurality of stiffening ribs, and the panel is evenly provided with a plurality of stiffening ribs; the cross-sections of the base (2) and the corner column (3) are both airplane-shaped, and the base (2) and the bottom end of the corner column (3) are plugged in; the corner column (3) is a hollow structure, and the wall thickness of the corner column (3) is not less than 5 mm; the side panels (4) are box-type side panels, and the side panels are The wall thickness is not less than 4 mm; the cover plate (5) includes a first cover plate (6), a second cover plate (7) and a third cover plate (8), the first cover plate (6), the second cover plate (7) and the third cover plate (8) are combined into an octagonal cover plate, and the first cover plate (6), the second cover plate (7) and the third cover plate (8) all adopt a grid structure; the cross section of the latch (9) is H-shaped; the column (10) adopts a hollow structure, and an annular crossbeam support (12) is fixed to the top end of the column (10), and eight notches are evenly arranged on the annular crossbeam support (12) to facilitate the installation of the crossbeam (11).

2. A method for constructing an assembled combined octagonal cable well according to claim 1, characterized in that: The following steps are involved: Step 1: Connect several stiffening panels through tongue and groove to form a whole base plate (1) of required size; fix eight bases (2) on the base plate (1) through bolts, and arrange the eight bases (2) in an octagonal shape; Step 2: pouring fine stone concrete on the entire base plate (1), so that the base plate (1) and the fine stone concrete form a combined base plate; Step 3: Fix the corner column (3) to the base (2) by plugging; Step 4: fix the side panels (4) to the corner posts (3) via the latches (9), and fix two adjacent side panels (4) to each other via the latches (9); Step 5: Install the column (10) at the center of the base plate (1), fix one end of the beam (11) to the corner column (3), and connect the other end of the beam (11) to the notch on the annular beam support (12); Step 6: Install the cover plate (5) on the beam (11) and glue waterproof strips to all the joints to complete the construction of the octagonal cable well.

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