UHPC-NC mixed structure calandria type cable pipe gallery
By using ordinary concrete in the main structure of the cable pipe gallery and using ultra-high performance concrete in the reinforced structure, the reinforced structure is strengthened by combining the joints of the connecting structure and the fixtures, the problem of easy damage to the cable pipe gallery when stress is concentrated is solved, the earthquake resistance and waterproof performance are improved, and economic costs are reduced.
Patent Information
- Application Number
- CN202421613425.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-09
- Publication Date
- 2025-04-25
- Estimated Expiration
- 2034-07-09
AI Technical Summary
The existing cable pipe corridors are prone to damage when stress is concentrated, resulting in insufficient resistance to displacement, bending and settlement resistance, affecting waterproofness, and excessive structural damage and deformation at joints composed of ordinary concrete, increasing economic costs.
UHPC-NC hybrid structure is adopted, and the mechanical properties of the joints of the joints are improved by using ordinary concrete in the main structure and ultra-high performance concrete in the reinforced structure.
It improves the earthquake resistance and waterproof performance of the cable pipe gallery, extends the service life, and reduces economic costs, making its performance close to that of all pipe pipe galleries using UHPC materials.
Smart Images
Figure CN222796509U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of prefabricated parts, in particular to a UHPC-NC hybrid structure pipe-row type cable corridor. Background Art
[0002] The pipe-laying cable corridor refers to the intensive laying of power and communication cables underground in the city. It is a prefabricated pipe-laying cable corridor that occupies a small space, has a relatively low cost, and meets the construction requirements. It has been promoted and applied on roads with limited road widths such as municipal branch roads, residential roads, and community roads. The pipe-laying cable corridor is equivalent to the "nerve endings" of the city's underground comprehensive corridor system. It can effectively utilize underground space, save urban land, and solve the safety hazards caused by the "spider web city" formed by the concentrated laying of cables in mid-air, as well as the traffic jams caused by the "zipper road" caused by repeated maintenance of underground municipal pipelines in urban roads. The centralized arrangement of various pipelines inside the corridor can avoid the contact between the pipelines and groundwater, soil, and various corrosive substances in the soil, and extend their maintenance cycle and service life.
[0003] Zhang Qiuchang and others designed a prestressed series of compartment-type underground pipe gallery, which has longitudinal tubes set in the upper cover and lower bottom plate, side plates and support plates of the prestressed pipe gallery, and uses steel strands to apply longitudinal stress to connect 2-3m long prefabricated pipe sections or 5-10m long pipe gallery sections cast on site into a 30-80m long pipe gallery body, which can increase the anti-displacement, anti-bending and anti-settlement performance of the pipe gallery.
[0004] Song Peichao and others designed a prefabricated integrated pipe gallery. This design sets polyethylene acrylic foam rubber strips on the surface of the prefabricated pipe gallery parts, and then uses socket connections between the opposing prefabricated pipe gallery parts to make the prefabricated pipe gallery parts fit tightly together. The relative positions of the opposing prefabricated pipe gallery parts are then controlled by prestress, thereby improving the waterproofness of the prefabricated integrated pipe gallery without affecting the mechanical properties of the prefabricated integrated pipe gallery.
[0005] Ultra-High Performance Concrete (UHPC) is a cement-based concrete material with superb mechanical properties, high durability, and excellent pouring and molding properties. UHPC is made by selecting highly active fine materials and using the most compact and fiber-reinforced technology. It meets the requirements of low-carbon, green, environmentally friendly, sustainable and high-quality development, and also promotes the application of UHPC in engineering construction.
[0006] Normal Concrete (NC), due to its low strength, the joints of the existing prefabricated pipe gallery with ordinary reinforced concrete as the main structure are easily damaged due to stress concentration, and it is impossible to apply a large prestress to the steel strands. The above reasons will have a negative impact on the anti-displacement, anti-bending and anti-settlement capabilities of the joints; structural damage and excessive deformation at the joints will cause the polyethylene acrylic foam rubber strip to fail and have an adverse effect on waterproofing; all component materials are made of ultra-high-strength concrete, resulting in excessively high economic costs and difficulty in promotion. Utility Model Content
[0007] In view of one of the deficiencies of the prior art, the utility model provides a UHPC-NC hybrid structure pipe-laying type cable gallery to solve the manufacturing problem of the existing cable gallery.
[0008] To achieve the above purpose, the utility model provides the following technical solution: a UHPC-NC hybrid structure pipe-laying cable corridor, comprising:
[0009] The external structure is composed of gallery components, and a space is reserved inside the external structure;
[0010] The internal component can be placed inside the external structure composed of the corridor components, and the internal component can form a supporting structure inside the external structure; the internal component can divide the space inside the external structure into a plurality of cable channels;
[0011] A cable assembly can be placed in the cable channel, and the cable assembly is used to thread cables;
[0012] A connecting component, which can connect the external structure;
[0013] Each section of the cable duct includes a plurality of external structures, and the external structures are connected by the connecting components.
[0014] Preferably, the external structure is a rectangular cylindrical structure as a whole; the external structure is provided with:
[0015] A connection structure is provided corresponding to the connection assembly, and the connection assembly can connect the adjacent external structures one by one through the connection structure;
[0016] The connection assembly can connect the external structures in a distributed linear array along the extension direction of the cable.
[0017] Preferably, the connection structure comprises a through hole penetrating the external structure, and the through direction of the through hole is the extension direction of the cable;
[0018] The connection component comprises:
[0019] A fixing member, arranged outside the external structure;
[0020] The connecting piece is a long strip structure and can be inserted into the through hole of the connecting structure; the end of the connecting piece extends to the outside of the external structure, and the end located outside the external structure is fixedly connected to the fixing piece.
[0021] Preferably, the external structure comprises:
[0022] The main structure is a rectangular cylindrical structure surrounded by a plurality of plate structures, and the through holes of the connecting structure are opened on the plate of the main structure;
[0023] The reinforcing structure is arranged on the main structure and is integrated with the main structure. The reinforcing structure is located at a position where the through hole of the connecting structure contacts the fixing member.
[0024] Preferably, the through holes of the connection structure are opened on the four edge structures of the main structure, and the reinforcing structure is provided at the four opposite corner positions of the two external structures of the same section of the cable gallery.
[0025] Preferably, the internal component can divide the main structure into a plurality of transverse cable channels, and the cable component is arranged in each cable channel.
[0026] Preferably, the cable assembly comprises:
[0027] The pipe sleeves are arranged in a rectangular array in the cable channel;
[0028] A pipe pillow is arranged corresponding to the pipe sleeve, and the pipe pillow is fixedly connected to the pipe sleeve.
[0029] Preferably, the reinforcing structure is arranged at a corner position of each of the external structures, and the reinforcing structure is arranged in a rectangular block structure as a whole;
[0030] The main structure can be cast using ordinary concrete, and the reinforced structure is cast by ultra-high performance concrete.
[0031] Preferably, the reinforcing structure extends toward the transverse middle of the main structure, and taking the horizontal plane as the reference plane, the projection of the reinforcing structure on the horizontal plane extends into the space of the cable channel;
[0032] The length of the reinforcing structure extending in the cable channel is a, and the transverse length of the cable channel is b, satisfying
[0033] Preferably, each section of the cable corridor includes at least two of the external structures, and further includes:
[0034] The water-stop structure is provided between the joints of two adjacent external structures.
[0035] The connecting piece is a steel strand, and the fixing piece is an anchor corresponding to the connecting piece.
[0036] Compared with the prior art, the following beneficial effects are achieved: The UHPC-NC hybrid structure of the cable gallery of this scheme. The cable gallery structure is used as the distribution structure of the cable, and can be used for laying multiple cables. The main structure and the reinforcement structure are used in combination, and ultra-high performance concrete is used as the preparation material of the reinforcement structure. The joints of the connecting structure and the fixings are partially reinforced with the reinforcement structure to improve the mechanical properties of the joints and prevent damage caused by excessive stress at the joints, so that greater prestress can be applied to the connecting parts to solve the technical problems of excessive deflection and excessive deformation of the joints that may occur under the action of upper loads and foundation settlement, thereby improving the seismic resistance and waterproof performance of the gallery. The reinforcement structure is combined with the local position, and the main structure is used for most of the external structure. The combination of the two can make the structure close to the performance of the cable gallery made entirely of UHPC materials, while greatly saving costs. BRIEF DESCRIPTION OF THE DRAWINGS
[0037] Figure 1 The main view of the embodiment of the present application Figure 1 ;
[0038] Figure 2 A side view of an embodiment of the present application Figure 1 ;
[0039] Figure 3 A side view of an embodiment of the present application Figure 2 ;
[0040] Figure 4 The main view of the embodiment of the present application Figure 2 .
[0041] In the figure:
[0042] 1. External structure; 11. Main structure; 12. Reinforced structure; 13. Connection structure; 2. Internal components; 3. Pipe sleeve; 4. Pipe pillow; 5. Fixing parts; 6. Connecting parts; 7. Water-stop structure. DETAILED DESCRIPTION
[0043] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0044] See also Figure 1-Figure 4 , this application provides the following technical solutions:
[0045] A UHPC-NC hybrid structure pipe-laying cable corridor includes an external structure 1, an internal component 2, a cable component and a connection component. The external structure 1 is composed of a corridor component, a space is reserved inside the external structure 1, and the external structure 1 is a rectangular cylinder structure as a whole; the internal component 2 can be placed inside the external structure composed of the corridor component, and the internal component can form a supporting structure inside the external structure; the internal component can divide the space inside the external structure into a plurality of cable channels; the cable component can be placed in the cable channel, and the cable component is used to pass the cable; the connection component can connect the external structure; each section of the cable corridor includes a plurality of external structures 1, and the external structures 1 are connected by the connection component. A connection structure 13 is provided on the external structure 1, and the connection structure 13 is provided corresponding to the connection component. The connection component can connect the adjacent external structures 1 one by one through the connection structure 13; the connection component can connect the external structures 1 in a linear array distributed manner along the extension direction of the cable.
[0046] The connection structure 13 is a through hole penetrating the external structure 1 , and the penetrating direction of the through hole is the extending direction of the cable.
[0047] The connecting component includes a fixing member 5 and a connecting member 6, wherein the fixing member 5 is arranged on the outside of the external structure 1; the connecting member 6 is a steel strand that can be inserted into the through hole of the connecting structure 13; the end of the connecting member 6 extends to the outside of the external structure 1, and its end located on the outside of the external structure 1 is fixedly connected to the fixing member 5, and the fixing member 5 is an anchor corresponding to the connecting member 6.
[0048] The cable assembly includes a pipe sleeve 3 and a pipe pillow 4. The pipe sleeves 3 are arranged in a rectangular array in the cable channel; the pipe pillows 4 are arranged corresponding to the pipe sleeves 3, and the pipe pillows 4 are fixedly connected to the pipe sleeves 3.
[0049] Taking the arrangement of two external structures 1 as an example, the two external structures 1 are brought together, the connector 6 is inserted into the through hole of the connecting structure 13, and its two ends are respectively extended to the outside of the external structure 1, and fixed by the fixing member 5, so that the arrangement of the pipe gallery can be completed. The cables can be passed inside.
[0050] On the basis of the above implementation scheme, the external structure 1 includes a main structure 11 and a reinforcement structure 12. The main structure 11 is surrounded by a plurality of plate structures to form a rectangular cylindrical structure, and the through hole of the connecting structure 13 is provided on the plate of the main structure 11; the reinforcement structure 12 is arranged on the main structure 11 and is integrated with the main structure 11, and the reinforcement structure 12 is located at the position where the through hole of the connecting structure 13 contacts the fixing member 5. The external structure 1 is integrally formed by casting, that is, the main structure 11 and the reinforcement structure 12 are cast and completed to make the two become one. The main structure 11 can be cast with ordinary concrete, and the reinforcement structure 12 is formed by casting ultra-high performance concrete.
[0051] The through holes of the connection structure 13 are opened on the four edge structures of the main structure 11, and the four corners of the two outer structures 1 of the same section of the cable corridor are provided with reinforcement structures 12. The internal component 2 can divide the main structure 11 into a plurality of transverse cable channels, and a cable component is arranged in each cable channel.
[0052] The main structure 11 is a rectangular cylindrical structure with a notch at the corner, and the reinforcement structure 12 is cast at the notch to form the four corner structures of the external structure 1, and the end of the through hole of the connection structure 13 is located on the reinforcement structure 12. In other words, the fixing member 5 is in close contact with the reinforcement structure 12, thereby ensuring that the connection member 6 can be tightened, because its contact position is the reinforcement structure 12, which is not easily damaged, so the connection member 6 can be solved, that is, the steel strand is applied with greater prestress. Ultra-high performance concrete is an existing concrete material and will not be described in detail here.
[0053] On the basis of the above implementation scheme, the reinforcing structure 12 is arranged in a rectangular block structure as a whole; the reinforcing structure 12 extends toward the middle of the main structure 11 in the horizontal direction, and with the horizontal plane as the reference plane, the projection of the reinforcing structure 12 on the horizontal plane extends into the space of the cable channel;
[0054] The length of the reinforcing structure 12 extending in the cable channel is a, and the transverse length of the cable channel is b, satisfying By using this amount of reinforcing structure 12, the connection of the external structure 1 can obtain better strength.
[0055] On the basis of the above implementation scheme, a water-stop structure 7 is provided between the joints of two adjacent external structures 1 , and the water-stop structure 7 is made of a water-swelling water-stop strip.
[0056] On the basis of the above implementation scheme, the interior of the main structure 11 is a steel mesh cage structure, and ordinary concrete is poured on the steel mesh cage to make it a rectangular cylindrical structure. In actual pouring, a split pouring method can be adopted, such as pouring the top plate and the bottom plate of the main structure 1 separately, leaving a pouring space corresponding to the reinforced structure 12 at its corners during pouring. The steel mesh cage structure is also distributed at the spatial position, and is integrally connected to the steel bars of the main structure 11. During pouring, baffles can be inserted into the four corners of the top plate or the bottom plate of the main structure 11 to leave space for the reinforced structure 12, and the corresponding concrete is injected and vibrated into the main structure 11 and the reinforced structure 12 respectively, and then the baffle is removed from the back, so that the two are in contact and wait for subsequent drying. At the same time, the side wall part of the main structure 11 is made, and finally assembled into the external structure 1.
[0057] In addition to the above method, the main structure 11 can also be divided into two parts, one of which is the lower trough part, and the other is the top cover structure, which are cast separately, and the casting space of the reinforced structure 12 is also reserved, and ordinary concrete and super-high performance concrete are used in combination, and finally the cover and trough parts are combined.
[0058] Figure 4 It is shown that the entire external structure 1 is cast using ultra-high performance concrete. The external structure 1 prepared in this way has extremely high strength, but the cost is relatively higher.
[0059] Based on the above implementation scheme, as an implementation method, Figure 4 In the form shown, the external structure 1 is made entirely of ultra-high performance concrete. The external structure 1 does not need to be made too long. In combination, a longer external structure 1 is made of ordinary concrete. That is to say, in the same section of the tunnel, the external structure 1 made entirely of ultra-high performance concrete is placed at both ends, and the external structure 1 made of ordinary concrete is placed in the main body in the middle, and water stop strips are used at the adjacent parts. A better use effect can also be obtained.
[0060] In the description of the present application and its embodiments, it should be understood that the orientation or positional relationship indicated by the terms "top", "bottom", "height", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.
[0061] In the present application and its embodiments, unless otherwise clearly specified and limited, the terms "set", "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.
[0062] In the present application and its embodiments, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is lower in level than the second feature.
[0063] The disclosure above provides many different embodiments or examples to realize the different structures of the present application. In order to simplify the disclosure of the present application, the parts and settings of specific examples are described above. Of course, they are only examples, and the purpose is not to limit the present application. In addition, the present application can repeat reference numbers and / or reference letters in different examples, and this repetition is for the purpose of simplification and clarity, which itself does not indicate the relationship between the various embodiments and / or settings discussed. In addition, the various specific processes and material examples provided by the present application, but those of ordinary skill in the art can be aware of the application of other processes and / or the use of other materials.
[0064] Although the preferred embodiments of the present application have been described, those skilled in the art may make additional changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications falling within the scope of the present application.
[0065] Obviously, those skilled in the art can make various changes and modifications to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is also intended to include these modifications and variations.
Claims
1. A UHPC-NC hybrid structure cable corridor, characterized in that: include: The external structure (1) is composed of gallery components, and a space is reserved inside the external structure (1); An internal component (2) can be placed inside the external structure composed of the gallery components, and the internal component can form a support structure inside the external structure; the internal component can divide the space inside the external structure into a plurality of cable channels; A cable assembly can be placed in the cable channel, and the cable assembly is used to thread cables; A connecting component, which can connect the external structure; Each section of the cable duct comprises a plurality of external structures (1), and the external structures (1) are connected by the connection components.
2. The UHPC-NC hybrid structure pipe-laying cable corridor according to claim 1, characterized in that: The external structure (1) is a rectangular cylindrical structure as a whole; the external structure (1) is provided with: A connection structure (13) is arranged corresponding to the connection assembly, and the connection assembly can connect the adjacent external structures (1) one by one through the connection structure (13); The connection assembly can connect the external structures (1) in a distributed linear array along the extension direction of the cable.
3. The UHPC-NC hybrid structure pipe-laying cable corridor according to claim 2, characterized in that: The connecting structure (13) comprises a through hole penetrating the external structure (1), and the through direction of the through hole is the extension direction of the cable; The connection component comprises: A fixing member (5) is arranged outside the external structure (1); The connecting member (6) is a long strip structure and can be inserted into the through hole of the connecting structure (13); the end of the connecting member (6) extends to the outside of the external structure (1), and the end located outside the external structure (1) is fixedly connected to the fixing member (5).
4. The UHPC-NC hybrid structure pipe-laying cable corridor according to claim 3, characterized in that: The external structure (1) comprises: The main structure (11) is surrounded by a plurality of plate structures to form a rectangular cylindrical structure, and the through hole of the connecting structure (13) is opened on the plate of the main structure (11); The reinforcing structure (12) is arranged on the main structure (11) and is integrated with the main structure (11). The reinforcing structure (12) is located at a position where the through hole of the connecting structure (13) contacts the fixing member (5).
5. The UHPC-NC hybrid structure pipe-laying cable corridor according to claim 4, characterized in that: The through holes of the connection structure (13) are opened on the four edge structures of the main structure (11), and the reinforcing structure (12) is arranged at the four opposite corner positions of the two external structures (1) of the same section of the cable corridor.
6. The UHPC-NC hybrid structure pipe-laying cable corridor according to claim 5, characterized in that: The internal component (2) can divide the main structure (11) into a plurality of transverse cable channels, and the cable component is arranged in each cable channel.
7. The UHPC-NC hybrid structure pipe-laying cable corridor according to claim 6, characterized in that: The cable assembly comprises: The pipe sleeves (3) are arranged in a rectangular array in the cable channel; The pipe pillow (4) is arranged corresponding to the pipe sleeve (3), and the pipe pillow (4) is fixedly connected to the pipe sleeve (3).
8. The UHPC-NC hybrid structure pipe-laying cable corridor according to claim 7, characterized in that: The reinforcing structure (12) is arranged at a corner position of each of the external structures (1), and the reinforcing structure (12) is arranged in a rectangular block structure as a whole; The reinforced structure (12) is formed by casting ultra-high performance concrete.
9. The UHPC-NC hybrid structure pipe-laying cable corridor according to claim 8, characterized in that: The reinforcing structure (12) extends toward the transverse middle of the main structure (11), and taking the horizontal plane as a reference plane, the projection of the reinforcing structure (12) on the horizontal plane extends into the space of the cable channel; The length of the reinforcing structure (12) extending in the cable channel is a, and the transverse length of the cable channel is b, satisfying 10. The UHPC-NC hybrid structure cable corridor according to any one of claims 1 to 9, characterized in that: Each section of the cable corridor comprises at least two of the external structures (1), and further comprises: The water-stop structure (7) is provided between the joints of two adjacent external structures (1).