Cross joint of comprehensive pipe gallery and electric power tunnel

Abstract

The utility model relates to the technical field of underground pipe gallery construction, and discloses a comprehensive pipe gallery and electric power tunnel crossing node which comprises a comprehensive pipe gallery and an electric power tunnel which are arranged in a crossing mode, the electric power tunnel is arranged above the comprehensive pipe gallery, and the first end of the electric power tunnel is connected to the top face of the comprehensive pipe gallery. The first end of the power tunnel is communicated with a substation; the first end of the power tunnel comprises a standard section, a broadening section and a main body section which are connected in sequence, the cross section area of the standard section is smaller than that of the main body section, and the cross section area of the broadening section is gradually increased from the end close to the standard section to the end away from the standard section; a cable in the power cabin enters the power tunnel through the communication port; the construction difficulty and the construction cost can be effectively reduced, and interaction between a newly-built cable tunnel and the pipe gallery is facilitated subsequently.

Description

TECHNICAL FIELD

[0001] The utility model relates to underground pipe gallery construction technical field, concretely relates to a kind of comprehensive pipe gallery and electric power tunnel's cross node. BACKGROUND

[0002] At present, the built cross node mostly uses upper and lower layer structure, that is, the electric power tunnel is sunk to the lower of the comprehensive pipe gallery, and the electric power tunnel is partially widened to provide sufficient space for the cable in the comprehensive pipe gallery to enter the electric power tunnel, and the comprehensive pipe gallery is sunk, a staircase is additionally provided at the bottom of the comprehensive pipe gallery, and the staircase is extended into the electric power tunnel to facilitate personnel to patrol the comprehensive pipe gallery and the electric power tunnel. This way makes the electric power tunnel under the comprehensive pipe gallery, with large burial depth, greatly increased construction difficulty, high requirements for technology and equipment, high cost of deep foundation pit excavation, support and waterproofing, and additional drainage facilities are needed due to the sinking of the comprehensive pipe gallery, which also increases maintenance costs. Moreover, the cross node is large in size and occupies a lot of underground space, and the engineering construction is complex and costly.

[0003] In addition, the electric power tunnel needs to be lifted to the elevation after passing through the cross node to be connected to the transformer substation. If the horizontal distance between the transformer substation and the pipe gallery is short, the lifting slope of the electric power tunnel will exceed the standard, which does not comply with the specification, affects construction and operation, and poses a safety hazard. If the electric power tunnel cabin is built at the cross node after the completion of the comprehensive pipe gallery, the entire built comprehensive pipe gallery needs to be demolished to build the electric power tunnel, which is extremely difficult and costly to modify.

[0004] In addition, the existing technology has widely adopted monitoring equipment and other means to patrol the comprehensive pipe gallery and the electric power tunnel, replacing traditional manual patrol. Therefore, it is no longer necessary to provide a staircase in the comprehensive pipe gallery to enable the staff to enter the comprehensive pipe gallery and the electric power tunnel for patrol, and the existing cross node scheme of the comprehensive pipe gallery and the electric power tunnel is no longer applicable. Therefore, a new cross node structure needs to be innovated to reduce construction cost and facilitate the subsequent construction of the electric power tunnel at the cross node. SUMMARY

[0005] The utility model aims at providing a cross node of comprehensive pipe gallery and electric power tunnel, which can effectively reduce construction difficulty and cost and facilitate the subsequent construction of new cable tunnel and pipe gallery.

[0006] To achieve the above-mentioned purpose, the present application provides a cross node of comprehensive pipe gallery and electric power tunnel, comprising: a comprehensive pipe gallery and an electric power tunnel arranged in cross, the comprehensive pipe gallery extends along a first direction, the electric power tunnel extends along a second direction, the electric power tunnel is arranged above the comprehensive pipe gallery, a first end of the electric power tunnel is connected to the top surface of the comprehensive pipe gallery, the first end of the electric power tunnel is used for communicating with a transformer substation,

[0007] The comprehensive pipe gallery comprises a power cabin, a first end portion of the power tunnel is attached to a top of the power cabin, the power cabin extends along a first direction, and a shape of any cross section of the power cabin is a same rectangle.

[0008] The first end of the power tunnel comprises a standard section, a widened section and a main section connected in sequence, the main section is attached to the top of the power cabin, an end of the main section away from the widened section is communicated with a transformer substation, a cross-sectional area of the standard section is smaller than a cross-sectional area of the main section, the cross-sectional area of the widened section gradually increases from an end close to the standard section to an end away from the standard section, and a bottom surface of the main section is provided with a communication port penetrating into the power cabin, and cables in the power cabin enter the power tunnel through the communication port.

[0009] As a preferred technical solution, shapes of cross sections of the standard section and the main section are all the same rectangle, and shapes of cross sections of the widened section are all trapezoidal.

[0010] As a preferred technical solution, the power tunnel has a plurality of cabin rooms, the plurality of cabin rooms are arranged at intervals along a second direction, a bottom surface of each cabin room is provided with a communication port penetrating into the power cabin, and cables in the power cabin enter corresponding cabin rooms through the communication port.

[0011] As a preferred technical solution, the intersection node of the comprehensive pipe gallery and the power tunnel further comprises a fireproof cover plate, the fireproof cover plate is correspondingly attached above the communication port, a plurality of through holes are formed in the fireproof cover plate, and cables of the power cabin enter the main section through the through holes.

[0012] As a preferred technical solution, the intersection node of the comprehensive pipe gallery and the power tunnel further comprises a handrail, the handrail is arranged in the main section, and the handrail surrounds an outer periphery of the communication port.

[0013] As a preferred technical solution, the intersection node of the comprehensive pipe gallery and the power tunnel further comprises a drainage channel, and the drainage channel is arranged in the standard section.

[0014] As a preferred technical solution, the intersection node of the comprehensive pipe gallery and the power tunnel further comprises a hanger, the hanger is arranged at a top of the main section, and the hanger is used for placing cables entering the power tunnel.

[0015] As a preferred technical solution, two hangers are arranged at intervals on opposite sides of the main section.

[0016] Preferably, the length of the main body section is L1, and the length of the widened section is L2, wherein L1=W0, and L2

[0017] Preferably, the length of the main body section is L1, and the length of the widened section is L2, wherein 0.8L1≤L2≤0.85L1.

[0018] Compared with the prior art, the intersection node of the comprehensive pipe gallery and the power tunnel provided by the above technical solution has the following beneficial effects:

[0019] 1. In the application, the bottom of the power tunnel is provided with a communication port at the intersection node to realize the communication between the power tunnel and the comprehensive pipe gallery, realize the connection of the tunnel in the comprehensive pipe gallery into the power tunnel, and realize the connection of the power tunnel with the power equipment in the transformer substation, thereby reducing the construction difficulty and the construction cost; and the power tunnel is widened at the intersection node to accommodate the cables entering the power tunnel from the comprehensive pipe gallery.

[0020] 2. In the application, the power tunnel is located above the comprehensive pipe gallery at the intersection node, and if the power tunnel chamber needs to be added in the future, the top plate of the comprehensive pipe gallery at the communication port only needs to be removed for construction, thereby greatly reducing the reconstruction difficulty and greatly reducing the reconstruction cost. BRIEF DESCRIPTION OF DRAWINGS

[0021] The application will be described in further detail below in conjunction with the drawings and preferred embodiments, but those skilled in the art will appreciate that the drawings are only drawn for the purpose of explaining the preferred embodiments and thus should not be regarded as limiting the scope of the application. In addition, unless specifically indicated, the drawings are only intended to conceptually represent the composition or structure of the described objects and can include exaggerated displays, and the drawings are not necessarily drawn to scale.

[0022] Fig. 1 Fig. 1 is a structural schematic view of the intersection node of the application;

[0023] Fig. 2 Fig. 2 is a schematic view of the A-A section of the application;

[0024] Fig. 3 Fig. 3 is a schematic view of the B-B section of the application;

[0025] 1, comprehensive pipe gallery; 11, power cabin; 2, power tunnel; 21, standard section; 210, drainage channel; 22, widened section; 23, main body section; 230, communication port; 231, railing; 232, hanger; 233, fireproof cover plate; 2330, through hole; 24, cabin. DETAILED DESCRIPTION

[0026] The preferred embodiments of the present application will be described in detail below with reference to the drawings. Those skilled in the art will appreciate that the description is merely descriptive, exemplary, and should not be interpreted as limiting the scope of protection of the present application.

[0027] First of all, it should be noted that the top, bottom, upward, downward, and other orientations mentioned herein are defined with respect to the directions in the various drawings, which are relative concepts and can therefore change according to different positions and different practical states. Therefore, these or other orientations should not be used as restrictive terms.

[0028] It should be noted that the term "comprising" does not exclude other elements or steps, and "a" or "one" does not exclude a plurality.

[0029] In addition, it should be noted that any single technical feature described or implied in the embodiments herein, or any single technical feature shown or implied in the drawings, can still be combined between these technical features (or their equivalents) to obtain other embodiments of the present application that are not directly mentioned herein.

[0030] In addition, it should be understood that the terms "first", "second", and the like are used herein to describe various information, but these information should not be limited to these terms, and these terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of the present application, the "first" information can also be referred to as "second" information, and similarly, the "second" information can also be referred to as "first" information.

[0031] The specific embodiments of the present application will be further described in detail below in conjunction with the drawings and examples. The following embodiments are used to illustrate the present application, but not to limit the scope of the present application.

[0032] Please refer to Figs. 1-3 The intersection node of the comprehensive pipe gallery 1 and the power tunnel 2 provided by the embodiments of the present application comprises: the comprehensive pipe gallery 1 and the power tunnel 2 arranged in a cross shape, the comprehensive pipe gallery 1 extends along a first direction, the power tunnel 2 extends along a second direction, the power tunnel 2 is arranged above the comprehensive pipe gallery 1, a first end of the power tunnel 2 is connected to a top surface of the comprehensive pipe gallery 1, and the first end of the power tunnel 2 is used for communication with a transformer substation,

[0033] The comprehensive pipe gallery 1 comprises a power cabin 11, a first end portion of the power tunnel 2 is arranged on the top of the power cabin 11, the power cabin 11 extends along the first direction, and the shape of any cross section of the power cabin 11 is a same rectangle;

[0034] The first end of the power tunnel 2 comprises a standard section 21, a widened section 22 and a main section 23 connected in sequence, the main section 23 is arranged on the top of the power cabin 11, the end of the main section 23 away from the widened section 22 is communicated with the transformer substation, the cross-sectional area of the standard section 21 is smaller than that of the main section 23, and the cross-sectional area of the widened section 22 gradually increases from the end close to the standard section 21 to the end away from the standard section 21, the bottom surface of the main section 23 is provided with a communication port 230 penetrating into the power cabin 11, and the cables in the power cabin 11 enter the power tunnel 2 through the communication port 230.

[0035] In the embodiment, the power tunnel 2 is located on the top of the comprehensive pipe gallery 1 and forms a cross node, the bottom surface of the main section 23 of the power tunnel 2 at the node is correspondingly provided with a communication port 230 penetrating into the power cabin 11 of the comprehensive pipe gallery 1, the cables in the power cabin 11 enter the power tunnel 2 through the communication port 230, and the first end of the power tunnel 2 is communicated with the transformer substation. Through the scheme, the power tunnel 2 does not need to be sunk to the lower part of the comprehensive pipe gallery 1 and then lifted to the elevation to access the transformer substation, which greatly reduces the construction difficulty and construction cost. The power tunnel 2 is arranged on the top of the power cabin 11 after being widened, which provides sufficient space for personnel to enter the power tunnel 2 to work, provides convenience for subsequent maintenance work, and provides a suitable turning radius for the cables accessing the power tunnel 2.

[0036] In the application, the shapes of the cross sections of the standard section 21 and the main section 23 are preferably all rectangular, and the shapes of the cross sections of the widened section 22 are all trapezoidal.

[0037] The existing power tunnel 2 often has multiple cabins 24 when there are many cables, and fireproof partitions are arranged between the multiple cabins 24. Therefore, the power tunnel has multiple cabins in the application, the multiple cabins are arranged at intervals along the second direction, the bottom surface of each cabin is provided with a communication port penetrating into the power cabin, and the cables in the power cabin enter the corresponding cabin through the communication port. Each cabin 24 in the power tunnel 2 is independently arranged, the bottom of each cabin 24 is provided with a communication port 230 corresponding to the position of the power cabin 11, and the cables in the power cabin 11 can enter each cabin 24 of the power tunnel 2 through the communication port 230, that is, the scheme can be applied to the case of multiple cabins 24 of the power tunnel 2.

[0038] In order to meet the fireproofing requirements, the intersection node of the comprehensive pipe gallery 1 and the power tunnel 2 further comprises a fireproofing cover plate 233 corresponding to the upper part of the communication port 230, and a plurality of through holes 2330 are formed in the fireproofing cover plate 233, so that the cables of the power cabin 11 can pass through the through holes 2330 into the main body section 23, and the through holes 2330 are blocked by fireproofing mortar to ensure the fireproofing effect.

[0039] In some embodiments, in order to prevent people from stepping on the fireproofing cover plate 233 by accident when walking or working in the power tunnel 2 and falling into the power cabin 11, the intersection node of the comprehensive pipe gallery 1 and the power tunnel 2 further comprises a handrail 231 arranged in the main body section 23 and surrounding the outer periphery of the communication port 230 to form a protective structure around the fireproofing cover plate 233.

[0040] Further, in order to prevent rainwater from leaking and damaging the electrical equipment and cables in the tunnel, avoid problems such as short circuit and insulation performance degradation caused by water immersion, ensure the safe operation of the power facilities, and maintain a relatively dry environment in the tunnel to ensure the normal operation of the environmental hygiene and equipment in the tunnel, the intersection node of the comprehensive pipe gallery 1 and the power tunnel 2 further comprises a drainage channel 210 arranged in the standard section 21 to collect and discharge rainwater and ensure the safe operation of the equipment in the tunnel.

[0041] Further, in order to fix and support the cables connected from the power cabin 11, the intersection node of the comprehensive pipe gallery 1 and the power tunnel 2 further comprises a hanger 232 arranged at the top of the main body section 23, and the hanger 232 is used to place the cables connected into the power tunnel 2. The hanger 232 arranged in the power tunnel 2 can place the cables in layers and categories, which is conducive to heat dissipation, facilitates maintenance and repair, and can isolate the cables from the ground and other objects in the power tunnel 2, reducing the influence of factors such as water immersion, dampness and corrosion on the cables, and avoiding damage to the cables caused by scratches and collisions with other objects in the tunnel, protecting the insulation layer and sheath of the cables and improving the reliability of the cables.

[0042] It is worth noting that in the present embodiment, two hangers 232 are arranged on opposite sides of the main body section 23 to better classify and place the cables.

[0043] In some embodiments, the length of the main section 23 is L1, L1=W0, where W0 is the width of the power cabin 11, and the length of the widened section 22 is L2, L2

[0044] It is worth mentioning that, in order to reduce the construction difficulty and cost of the power tunnel 2, the inventors have obtained the optimal ratio of the length L1 of the main section 23 and the length L2 of the widened section 22 through repeated experiments, which is 0.8L1≤L2≤0.85L1. Within this ratio range, the power tunnel 2 can be widened to the required width, and the construction difficulty and cost can be reduced.

[0045] In summary, the intersection node of the utility tunnel 1 and the power tunnel 2 provided by the embodiment is of an upper and lower layer structure, i.e., the power tunnel 2 is located above the utility tunnel 1, the power tunnel 2 is widened at the node, and the communication opening 230 is arranged in the power tunnel 2 to communicate with the power cabin 11 in the utility tunnel 1, so that the buried depth of the power tunnel 2 at the intersection node is relatively shallow, and the power tunnel 2 is convenient to communicate with the transformer substation. If the power tunnel 2 needs to be built at the intersection node, only the top plate of the main section 23 of the power tunnel 2 needs to be removed, which effectively reduces the construction difficulty and cost.

[0046] This specification discloses the present application with reference to the accompanying drawings, and also enables those skilled in the art to implement the present application, including manufacturing and using any device or system, using appropriate materials, and using any combined method. The scope of the present application is defined by the claimed technical solutions, and includes other examples thought by those skilled in the art. As long as such other examples include structural elements not different from the literal language of the claimed technical solutions, or such other examples contain equivalent structural elements not substantially different from the literal language of the claimed technical solutions, such other examples should be considered to be within the protection scope determined by the claimed technical solutions of the present application.

Claims

1. An intersection node of a utility tunnel and a power tunnel, characterized by, The utility model relates to a comprehensive pipe gallery and power tunnel, the comprehensive pipe gallery extends along a first direction, the power tunnel extends along a second direction, the power tunnel is arranged above the comprehensive pipe gallery, a first end of the power tunnel is connected to a top surface of the comprehensive pipe gallery, the first end of the power tunnel is used for communicating with a transformer substation, The comprehensive pipe gallery comprises a power cabin, a first end portion of the power tunnel is arranged on a top portion of the power cabin, the power cabin extends along the first direction, and a shape of any cross section of the power cabin is a same rectangle. The first end of the power tunnel comprises a standard section, a widened section and a main section connected in sequence, the main section is arranged on the top portion of the power cabin, a distal end of the main section away from the widened section communicates with the transformer substation, a cross-sectional area of the standard section is smaller than a cross-sectional area of the main section, the cross-sectional area of the widened section gradually increases from a proximal end of the widened section close to the standard section to a distal end of the widened section away from the standard section, and a bottom surface of the main section is provided with a communication port penetrating into the power cabin, cables in the power cabin enter the power tunnel through the communication port. The standard section and the main section each have a same rectangular shape in cross section, and the widened section has a trapezoidal shape in cross section.

2. The utility tunnel and power tunnel intersection node of claim 1, wherein, The power tunnel has a plurality of cabin rooms arranged at intervals along the second direction, and each cabin room has a communication port penetrating into the power cabin, and cables in the power cabin enter corresponding cabin rooms through the communication port.

3. The utility tunnel and power tunnel intersection node of claim 2, wherein, The utility model also comprises a fireproof cover plate arranged above the communication port, the fireproof cover plate is provided with a plurality of through holes, and cables in the power cabin enter the main section through the through holes.

4. The utility tunnel and power tunnel intersection node of claim 3, wherein, The utility model also comprises a drainage channel arranged in the standard section.

5. The utility tunnel and power tunnel intersection node of claim 1, wherein, The utility model also comprises a handrail arranged in the main section and surrounding an outer periphery of the communication port.

6. The utility tunnel and power tunnel intersection node of claim 1, wherein, The utility model also comprises a hanger arranged on a top portion of the main section and used for placing cables entering the power tunnel.

7. The utility tunnel and power tunnel intersection node of claim 1, wherein, The hanger is provided with two hangers arranged at intervals on opposite sides of the main section.

8. The utility tunnel and power tunnel intersection node of claim 7, wherein, A length of the main section is L1, L1=W0, wherein W0 is a width of the power cabin, a length of the widened section is L2, and L2 9. The utility tunnel and power tunnel intersection node of claim 1, wherein, The length L1 of the main section and the length L2 of the widened section satisfy the following relationship: 0.8L1≤L2≤0.85L1.

10. The utility tunnel and power tunnel intersection node of claim 9, wherein, ​

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