Prefabricated well body system for airport apron ground well

Abstract

The invention provides a prefabricated well body system used for an airport apron ground well, and relates to the technical field of airport apron ground wells, the prefabricated well body system comprises a prefabricated well body, the prefabricated well body comprises a top wall, a peripheral wall and a base platform, the top wall, the peripheral wall and the base platform jointly define a well body space used for containing equipment, the top wall is provided with a manhole, and the manhole is arranged in the well body space. A manhole is formed in the peripheral wall, a cover plate is arranged in the manhole and used for blocking or opening the manhole, in the vertical direction, the projection of the peripheral wall falls within the projection of the base station, and a plurality of embedded pipeline holes allowing pipelines to penetrate through are formed in the peripheral wall. According to the prefabricated well body system for the airport apron ground well, the ground well is converted into an industrial modular product which is designed in advance, uniform in specification and reserved in interface from a civil engineering product which needs to highly depend on the technology of field workers, so that construction preposition, interface standardization and function reservation can be achieved, and the construction efficiency is improved. And various defects caused by a traditional ground well construction mode are thoroughly overcome.

Description

Technical Field

[0001] This invention relates to the field of apron well technology, and more specifically to a prefabricated well system for apron wells. Background Technology

[0002] An apron well is a well-shaped facility located on the ground of an airport apron (the area where aircraft are parked, passengers and cargo are picked up and dropped off, and various ground services are provided). Essentially, it is the infrastructure of the airport ground support system, used to provide various necessary energy and media for parked aircraft and ground service equipment, and serves as a hub connecting airport fixed facilities with aircraft / mobile equipment.

[0003] However, the wells currently used for installing underground well systems are typically excavated based on the actual conditions of the construction site. During construction, various situations often arise, such as incorrect pre-buried pipeline layouts or the need to add new pipelines, requiring secondary construction of the well. Furthermore, because the wells were excavated by the construction team initially, subsequent installation of the well system may encounter problems such as incompatible installation dimensions and inconsistent pipeline specifications, necessitating adjustments to the well system's dimensions and replacement of pipeline joints. This prolongs the installation period, increases the amount of installation equipment, and results in significant time wastage and increased costs. Summary of the Invention

[0004] To address the problems in related technologies, this invention provides a prefabricated well system for apron wells. This prefabricated well system transforms the well from a civil engineering product highly dependent on on-site worker skills into a pre-designed, standardized, and pre-configured industrial modular product. This enables pre-construction, standardized interfaces, and pre-defined functions, completely overcoming the various drawbacks of traditional well construction methods.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows: A prefabricated well system for apron wells includes a prefabricated well body, which comprises a top wall, a peripheral wall, and a base. The top wall, the peripheral wall, and the base together enclose a well space for accommodating equipment. A manhole is provided on the top wall, and a cover plate is provided inside the manhole for sealing or opening the manhole. In the vertical direction, the projection of the peripheral wall falls within the projection of the base. Several pre-embedded pipeline holes for pipelines to pass through are provided on the peripheral wall.

[0006] Optionally, the prefabricated well system for apron wells further includes a pipeline installation assembly. The pipeline installation assembly includes a conduit, a limiting ring, a connecting ring, an elastic ring, and a geomembrane. The conduit is installed inside the pre-embedded pipeline hole. The limiting ring is fixedly sleeved on the outside of the conduit and located within the well space. The limiting ring abuts against the inner side of the peripheral wall. The connecting ring is threaded onto the conduit and located outside the well space. The connecting ring abuts against the outer side of the peripheral wall. The geomembrane is formed in a cylindrical shape. One end of the geomembrane is sleeved on the periphery of the connecting ring, and the other end of the geomembrane is sleeved on the periphery of the elastic ring. The elastic ring is used to sleeve the pipeline located outside the well space.

[0007] Optionally, the pipeline installation assembly further includes a first elastic sealing ring and a second elastic sealing ring. The first elastic sealing ring is disposed between the limiting ring and the peripheral wall to seal the gap between the limiting ring and the peripheral wall. The second elastic sealing ring is disposed between the docking ring and the peripheral wall to seal the gap between the docking ring and the peripheral wall. One end of the geomembrane is fitted onto the periphery of the second elastic sealing ring.

[0008] Optionally, the prefabricated well body further includes a grid base plate, a water pump, and a water pumping pipe. The grid base plate is installed on the base or the peripheral wall. The grid base plate is used to divide the well body space into an equipment space and a water collection space distributed in the vertical direction. The water collection space is used to collect liquid entering the equipment space. The water pump is installed in the water collection space to extract liquid from the water collection space. One end of the water pumping pipe is connected to the water pump, and the other end of the water pumping pipe passes through the top wall and extends to the outside of the well body space.

[0009] Optionally, the pipeline installation assembly further includes a blowout preventer and a water intake pipe disposed within the well body space. The blowout preventer is formed into a cylindrical structure and includes a first end and a second end disposed opposite to each other, as well as an annular sidewall. The annular sidewall encloses a blowout preventer cavity. The radial dimension of the first end is larger than that of the second end. The first end is sleeved on the outside of the conduit, and the second end is covered outside the limiting ring so that the limiting ring is accommodated within the blowout preventer cavity. One end of the water intake pipe is connected to the lower end of the annular sidewall and communicates with the blowout preventer cavity, and the other end of the water intake pipe extends toward the water collection space.

[0010] Optionally, the water inlet pipe is formed as an arc-shaped plate structure, which is fastened and abutted against the inner side of the peripheral wall to form a water inlet cavity that communicates with the blowout preventer.

[0011] Optionally, the elastic ring is configured as a rubber ring.

[0012] Optionally, the cover is configured as a flip-top cover.

[0013] Optionally, a plurality of the pre-embedded pipeline holes are arranged at intervals along the horizontal direction on the peripheral wall.

[0014] Optionally, the pre-embedded pipeline holes are arranged one by one according to their radial dimensions.

[0015] Beneficial effects: 1. Through the above technical solution, firstly, on-site excavation and masonry can be fundamentally avoided, improving construction efficiency and quality. Specifically, this implementation addresses the pain points of "excavation based on the actual conditions of the construction site" and "well bodies excavated by the construction party in the early stage" in the background technology, transforming the well body from "on-site construction components" to "factory prefabricated components." This not only effectively shortens the construction period (on-site work changes from complex earthwork excavation, concrete pouring, and curing to simple foundation pit excavation and hoisting, greatly shortening the construction time of the main structure), but also effectively ensures quality (the stable factory production environment and the use of molds allow for precise control of the well body's dimensions, strength, and flatness, avoiding quality fluctuations and inconsistencies caused by on-site construction factors such as personnel skills and weather conditions). In addition, it effectively reduces waste (prefabrication optimizes material use and reduces material loss and waste common in on-site construction).

[0016] Secondly, it enables standardization and modularization, resolving issues of inconsistent installation dimensions and specifications. Specifically, through pre-design and manufacturing, it ensures that every prefabricated well body of the same model leaving the factory has completely consistent internal space dimensions and interface positions. This not only effectively guarantees equipment installation compatibility (equipment within the well system, such as power, hydraulic, and water supply units, can be designed and pre-assembled according to the dimensions of the standard well body, ensuring that the equipment can be "plug and play" upon arrival without needing on-site readjustment or modification due to well body size issues), but also effectively guarantees the standardization of pipeline connections (the pre-embedded pipeline hole itself is a standardized interface positioning, providing a benchmark and installation position for subsequent installation of pipeline joints of uniform specifications, structurally laying the foundation for solving the problem of "inconsistent specifications during pipeline connection").

[0017] Third, it offers high scalability and adaptability, avoiding secondary construction. Specifically, when new pipelines are needed, construction workers do not need to demolish the existing manhole structure (secondary construction) to drill new through-wall holes; they only need to select one of the pre-reserved, unused embedded pipeline holes for installation. This effectively solves the problems of "high operational difficulty" and "easy damage to the manhole structure" caused by secondary construction. Furthermore, different airports or aircraft stands may have different pipeline configuration requirements; prefabricated manholes with multiple pre-reserved holes provide extremely high flexibility to adapt to various application scenarios without changing the manhole design itself.

[0018] Fourth, it can effectively simplify the construction process and reduce overall costs. Specifically, in this implementation, firstly, it can reduce labor and time costs (the shortened construction cycle directly reduces the cost of manpower and machinery), secondly, it can reduce management costs (standardized products simplify procurement, warehousing, and construction management processes), and simultaneously, it can reduce rework and scrap costs (avoiding rework, material scrap, and repair costs caused by dimensional errors or pipeline changes). In addition, it can reduce life cycle costs (facilitating later maintenance and upgrades, reducing the total cost over the entire service life).

[0019] 2. Other beneficial effects or advantages of the present invention will be described in detail in conjunction with specific structures in specific embodiments. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. In addition, it should be understood that the proportional relationship of each component in the drawings of this specification does not represent the proportional relationship in the actual material selection and design, but is only a schematic diagram of the structure or position, wherein: Figure 1 This is a three-dimensional structural schematic diagram of a prefabricated well body system for apron wells provided in an exemplary embodiment of the present invention. Figure 2 This is a three-dimensional structural schematic diagram of a prefabricated well system for apron wells provided in an exemplary embodiment of the present invention, which also shows pipeline installation components. Figure 3 This is a schematic diagram of the structure of related equipment disposed in the equipment space according to an exemplary embodiment of the present invention; Figure 4This is a partial cross-sectional structural diagram of a pipeline installation assembly installed on a peripheral wall according to an exemplary embodiment of the present invention, wherein the pipeline is also shown. Figure 5 This is a three-dimensional structural schematic diagram of a pipeline installation assembly provided in an exemplary embodiment of the present invention. Figure 6 This is a three-dimensional structural schematic diagram of a pipeline installation assembly provided in an exemplary embodiment of the present invention, from another perspective.

[0021] Explanation of the labels in the attached drawings: 100-Prefabricated well system for apron wells; 1-Prefabricated well body; 11-Top wall; 111-Manhole; 112-Cover plate; 12-Peripheral wall; 121-Pre-embedded pipeline hole; 13-Base; 14-Well space; 141-Equipment space; 142-Water collection space; 15-Grate bottom plate; 16-Water pump; 17-Water pipe; 2-Pipeline installation assembly; 21-Pipeline body; 22-Limiting ring; 23-Connecting ring; 24-Elastic ring; 25-Geomembrane; 261-First elastic sealing ring; 262-Second elastic sealing ring; 27-Blowout preventer; 271-First end; 272-Second end; 273-Annular sidewall; 274-Blowout preventer cavity; 28-Water inlet pipe; 281-Water inlet cavity. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0023] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0024] The technical solution of the present invention will be described in detail below with reference to the accompanying drawings.

[0025] like Figure 1 and Figure 2As shown, this embodiment provides a prefabricated well body system 100 for apron wells, including a prefabricated well body 1. The prefabricated well body 1 includes a top wall 11, a peripheral wall 12, and a base 13. The top wall 11, the peripheral wall 12, and the base 13 together enclose a well body space 14 for accommodating equipment. A manhole 111 is provided on the top wall 11, and a cover plate 112 is provided inside the manhole 111. The cover plate 112 is used to block or open the manhole 111. In the vertical direction, the projection of the peripheral wall 12 falls within the projection of the base 13. A plurality of pre-embedded pipeline holes 121 for pipelines to pass through are provided on the peripheral wall 12.

[0026] The above technical solution achieves several advantages. First, it fundamentally avoids on-site excavation and masonry, improving construction efficiency and quality. Specifically, this implementation addresses the pain points of "excavation based on actual construction site conditions" and "well bodies excavated by the construction party in the early stages" in the background technology, transforming the well body from an "on-site construction component" to a "factory prefabricated component." This not only effectively shortens the construction period (on-site work is transformed from complex earthwork excavation, concrete pouring, and curing to simple foundation pit excavation and hoisting, greatly reducing the construction time of the main structure), but also effectively ensures quality (the stable factory production environment and mold operation allow for precise control of the well body's dimensions, strength, and flatness, avoiding quality fluctuations and inconsistencies caused by on-site construction factors such as personnel skills and weather conditions). Furthermore, it effectively reduces waste (prefabrication optimizes material usage, reducing material loss and waste common in on-site construction).

[0027] Secondly, it enables standardization and modularization, resolving issues of inconsistent installation dimensions and specifications. Specifically, through pre-design and manufacturing, it ensures that each prefabricated well body 1 of the same model has completely consistent internal space dimensions and interface positions. This not only effectively guarantees equipment installation compatibility (equipment within the well system, such as power, hydraulic, and water supply units, can be designed and pre-assembled according to the dimensions of the standard well body, ensuring that the equipment can be "plug and play" upon arrival without needing on-site readjustment or modification due to well body size issues), but also effectively guarantees the standardization of pipeline connections (the pre-embedded pipeline hole 121 itself is a standardized interface positioning, providing a benchmark and installation position for subsequent installation of pipeline joints of uniform specifications, structurally laying the foundation for resolving "inconsistent specifications during pipeline connection").

[0028] Third, it offers high scalability and adaptability, avoiding secondary construction. Specifically, when new pipelines are needed, construction personnel do not need to demolish the existing manhole structure (secondary construction) to drill new through-wall holes; they only need to select one of the pre-reserved, unused pre-embedded pipeline holes 121 for installation. This effectively solves the problems of "high operational difficulty" and "easy damage to the manhole structure" caused by secondary construction. In addition, different airports or aircraft positions may have different pipeline configuration requirements. The prefabricated manhole 1 with multiple reserved holes provides extremely high flexibility to adapt to various different application scenarios without changing the design of the manhole itself.

[0029] Fourth, it can effectively simplify the construction process and reduce overall costs. Specifically, in this implementation, firstly, it can reduce labor and time costs (the shortened construction cycle directly reduces the cost of manpower and machinery), secondly, it can reduce management costs (standardized products simplify procurement, warehousing, and construction management processes), and simultaneously, it can reduce rework and scrap costs (avoiding rework, material scrap, and repair costs caused by dimensional errors or pipeline changes). In addition, it can reduce life cycle costs (facilitating later maintenance and upgrades, reducing the total cost over the entire service life).

[0030] In this embodiment, it should be noted that the prefabricated well body is a replacement for the existing apron excavation and construction well body. It involves prefabricating the well body as a single unit at a prefabrication plant, then assembling the necessary components and the well system within the well body to form the prefabricated well body system 100 for aprons according to this invention. The prefabricated well body system 100 is then transported to the apron where the well system needs to be installed. It is then placed inside the excavated pit and backfilled with soil. This allows for quick and error-free installation. Pre-buried pipelines are then connected into the well body. This prefabricated well body system 100 for aprons allows for rapid installation with low construction requirements, reduces installation errors, avoids unnecessary rework and delays, thereby saving costs and increasing work efficiency.

[0031] During the use of the apron well, the pre-embedded pipeline holes 121 set on the well body perimeter wall 12 need to be sealed to prevent water (which may have a certain pressure) and soil in the soil from seeping into the well body space 14 through the pre-embedded pipeline holes 121. At present, the sealing method for the pre-embedded pipeline holes 121 is generally to use cement mortar. However, this sealing method is very inconvenient when replacing different pipelines or joints, as it requires breaking the poured cement mortar, which is not only difficult to operate, but also easy to damage the well body structure.

[0032] In view of this, in one embodiment of the present invention, such as Figure 2 , Figures 4 to 6 As shown, the prefabricated well system 100 for apron wells of the present invention may further include a pipeline installation component 2. The pipeline installation component 2 may include a conduit 21, a limiting ring 22, a connecting ring 23, an elastic ring 24, and a geomembrane 25. The conduit 21 is installed in the pre-embedded pipeline hole 121. The limiting ring 22 is fixedly sleeved on the outside of the conduit 21 and located in the well space 14. The limiting ring 22 is used to abut against the inner side of the peripheral wall 12. The connecting ring 23 is threadedly connected to the conduit 21 and located outside the well space 14. The connecting ring 23 is used to abut against the outer side of the peripheral wall 12. The geomembrane 25 is formed in a cylindrical shape. One end of the geomembrane 25 is sleeved on the periphery of the connecting ring 23, and the other end of the geomembrane 25 is sleeved on the periphery of the elastic ring 24. The elastic ring 24 is used to sleeve the pipeline located outside the well space 14.

[0033] The above technical solution achieves several advantages. First, it effectively enables a highly efficient and detachable connection between the pre-embedded pipeline hole 121 and the pipeline, completely avoiding destructive construction. Specifically, when replacing, repairing, or adding pipelines, simply loosening the connecting ring 23 allows the entire installation component or pipeline to be removed from the pre-embedded pipeline hole 121. This process is non-destructive, completely avoiding the need to break through the poured cement mortar as described in the prior art. Installation and disassembly are convenient, greatly reducing the difficulty of operation. Second, since no chiseling or other demolition work is required, the potential risk of damage to the prefabricated well body 1 perimeter wall 12 structure is completely eliminated, ensuring the integrity and long service life of the well body structure. Furthermore, this connection method does not rely on specific adhesives or disposable sealing materials, and can adapt to frequent pipeline change requirements.

[0034] Secondly, this implementation method achieves efficient and flexible dynamic sealing, effectively preventing water and soil infiltration. In other words, it forms a continuous, flexible sealing channel from the well wall to the outer wall of the pipeline, effectively solving the problem that traditional rigid sealing (cement mortar sealing) cannot adapt to different pipe diameters and pressure changes. Specifically, the cylindrical geomembrane 25 effectively wraps around the pipeline, blocking water from the soil regardless of its direction (static pressure or flowing water), preventing it from seeping into the well space 14. Furthermore, the elastic ring 24 is elastic and can tightly fit around the outer wall of pipelines of different diameters, forming an adaptive seal. This allows the same installation component to be used for various pipeline specifications, eliminating the need for specific seals for each pipe diameter, thus offering high versatility. Simultaneously, the cylindrical geomembrane 25 structure has a certain strength and ductility, better resisting the impact of water pressure in the soil, resulting in higher sealing reliability than cement mortar (which is prone to micro-cracks). In addition to preventing water seepage, it can also effectively prevent soil particles from entering the well through the gaps, maintaining the stability of the soil around the well.

[0035] Third, this implementation method constitutes a standardized pre-installed functional module, which can effectively simplify the on-site installation process. Specifically, on-site workers no longer need to perform complex sealing construction (such as mixing cement, pouring, and curing). They only need to insert the conduit 21 into the reserved hole, place the limiting ring 22 from the inside, and screw on the connecting ring 23 from the outside and tighten it to complete the component fixation. Then, the pipeline is passed through, and the elastic ring 24 and the geomembrane 25 are fitted on. Secondly, the performance and quality of key sealing components (such as the geomembrane 25) can be controlled in the factory, avoiding sealing failure caused by improper operation during on-site construction. In addition, the pipeline installation component 2 is an independent functional unit. If a sealing problem occurs, the component can be directly repaired or replaced, and the problem can be clearly located.

[0036] In one embodiment of the present invention, such as Figure 4 and Figure 5 As shown, the pipeline installation assembly 2 of the present invention may further include a first elastic sealing ring 261 and a second elastic sealing ring 262. The first elastic sealing ring 261 is disposed between the limiting ring 22 and the peripheral wall 12 to seal the gap between the limiting ring 22 and the peripheral wall 12. The second elastic sealing ring 262 is disposed between the connecting ring 23 and the peripheral wall 12 to seal the gap between the connecting ring 23 and the peripheral wall 12. One end of the geomembrane 25 is sleeved on the periphery of the second elastic sealing ring 262.

[0037] Thus, firstly, although the limiting ring 22 and the inner side of the well wall, and the docking ring 23 and the outer side of the well wall are in a buttressing relationship, microscopic unevenness and gaps inevitably exist between the two metal (or rigid material) annular surfaces and the concrete well wall. The introduction of the elastic sealing ring is specifically designed to seal these microscopic gaps in the rigid contact surfaces. In this way, the elastic material can deform under the pressure of bolt tightening, perfectly filling all the tiny gaps between the rigid surface of the limiting ring 22 / dock ring 23 and the rough concrete well wall surface, forming an airtight and watertight static seal. This compensates for slight unevenness at the pre-embedded orifice of the precast well body 1 or minor deviations during installation. At the same time, moisture in the soil, especially under pressure, is an all-pervasive medium that can seep in through extremely fine channels. The first elastic sealing ring 261 and the second elastic sealing ring 262 can effectively block the capillary infiltration path of moisture between the conduit body 21 and the inner wall of the pre-embedded pipeline hole 121, as well as between the fasteners and the well wall.

[0038] Secondly, the dual-sealing system, which complements the existing dynamic sealing structure, significantly improves overall sealing reliability. Specifically, this structure features a clear division of labor and functional complementarity. The first elastic sealing ring 261 and the second elastic sealing ring 262 are responsible for static sealing, addressing the sealing issue at the fixed interface between the component and the well body. The geomembrane 25 and the elastic ring 24 are responsible for dynamic sealing, addressing the sealing issue between the component and the movable pipeline. Thus, the static sealing ring handles fixed interfaces that are not expected to move; the dynamic sealing component handles interfaces that may move due to pipeline vibration, thermal expansion and contraction, or replacement. Together, they form a complete, uninterrupted sealing chain from the well body structure to the pipeline sheath. Even if the external dynamic sealing component (geomembrane 25) degrades in performance due to long-term aging or accidental damage, the internal static sealing ring can still act as a robust barrier, preventing a large influx of liquid into the well, buying time for maintenance. Conversely, the presence of the static seal also ensures that the dynamic sealing components operate on a stable basis. This redundant design significantly improves the reliability and safety of the entire sealing system.

[0039] Third, the geomembrane 25 is fitted onto the periphery of the second elastic sealing ring 262, using the existing second elastic sealing ring 262 as the mounting base for the geomembrane 25. In this way, the rubber surface of the elastic sealing ring provides better friction and fit than the metal mating ring 23, making the geomembrane 25 less prone to slippage and detachment, resulting in a better seal. Secondly, this connection method allows the stress on the geomembrane 25 to be transferred to the elastic second elastic sealing ring 262, rather than directly to the metal mating ring 23 which may come into hard contact with the well wall. This reduces the risk of tearing at the root of the geomembrane 25 due to bending or pulling, extending its service life.

[0040] In one embodiment of the present invention, such as Figure 3 As shown, the prefabricated well body 1 of the present invention may further include a grid bottom plate 15, a water pump 16, and a water pumping pipe 17. The grid bottom plate 15 is installed on the base 13 or the peripheral wall 12. The grid bottom plate 15 is used to divide the well body space 14 into an equipment space 141 and a water collection space 142 distributed in the vertical direction. The water collection space 142 is used to collect the liquid entering the equipment space 141. The water pump 16 is installed in the water collection space 142 to extract the liquid in the water collection space 142. One end of the water pumping pipe 17 is connected to the water pump 16, and the other end of the water pumping pipe 17 passes through the top wall 11 and extends to the outside of the well body space 14.

[0041] In this way, the grid bottom plate 15, water pump 16 and water pipe 17 are configured to effectively collect and discharge the water entering the well space 14. This not only achieves dry and wet separation in the well space and provides a stable operating environment for the core equipment, but also provides an automated drainage method to actively discharge the water accumulated in the well.

[0042] However, in practical applications, dangerous scenarios may still occur: when the pipeline penetration component 2 still experiences a certain pressure leak, how can we prevent the fluids under pressure from splashing and damaging the equipment inside the well, and how can we safely guide the leaked material into the drainage system?

[0043] In view of this, in one embodiment of the present invention, such as Figure 2 , Figures 4 to 6 As shown, the pipeline installation assembly 2 of the present invention may further include a blowout preventer 27 and a water inlet pipe 28 disposed in the well space 14. The blowout preventer 27 is formed into a cylindrical structure and includes a first end 271 and a second end 272 disposed opposite to each other, and an annular sidewall 273. The annular sidewall 273 encloses a blowout preventer cavity 274. The radial dimension of the first end 271 is larger than the radial dimension of the second end 272. The first end 271 is sleeved on the outside of the conduit body 21, and the second end 272 is covered on the outside of the limiting ring 22 so that the limiting ring 22 is accommodated in the blowout preventer cavity 274. One end of the water inlet pipe 28 is connected to the lower end of the annular sidewall 273 and communicates with the blowout preventer cavity 274. The other end of the water pipe extends toward the water collection space 142.

[0044] Through the above technical solution, firstly, this embodiment provides a local sealed containment space that can effectively constrain and guide sudden leaks. Specifically, this structure creates a local, controlled sealed or semi-sealed space (blowout preventer 274) at each pipeline interface, enclosing potential leak points (pipeline joints near the limiting ring 22). If a leak point ruptures, the leaking pressurized fluid will not directly and randomly spray into the entire well equipment space 141. The immediate containment effect of the blowout preventer 274 will greatly limit the range and direction of the spray, preventing pressurized fluid from directly impacting, contaminating, and damaging other precision equipment (such as electrical interfaces and control units) within the well.

[0045] Second, the water inlet pipe 28 and the blowout preventer 27 work together to design a preset flow path for the leaked fluid, safely diverting it away from the equipment space 141. In this way, it can form a functional linkage with the drainage subsystem (grid base plate 15, water pump 16 and water pipe 17) of the aforementioned technical solution. After the leaked material is diverted to the water collection space 142, it can be automatically pumped out of the well by the existing water pump 16 in that space.

[0046] In one embodiment of the present invention, such as Figure 5 and Figure 6 As shown, the water inlet pipe 28 of the present invention can be formed as an arc-shaped plate structure, which is fastened and abutted against the inner side of the peripheral wall 12, so as to jointly enclose the water inlet cavity 281 which is interconnected with the blowout preventer cavity 274.

[0047] This technical solution achieves several advantages. First, the water inlet pipe 28 is designed as an arc-shaped plate structure and fastened against the inner side of the peripheral wall 12. In this way, the peripheral wall 12 of the well body itself can be used as part of its structure to jointly enclose the water inlet cavity 281. This can greatly save the internal space of the well equipment space 141 and avoid the congestion that may be caused by installing additional pipes.

[0048] Secondly, the water intake cavity 281 formed together with the well wall generally has a better cross-sectional area and structural stability than an independent circular pipe. It can guide a large amount of leaked liquid that may suddenly gush out to the water collection space 142 more efficiently and smoothly, reduce flow resistance, reduce the risk of blockage due to narrow or deformed pipes, and improve the reliability of the emergency drainage system.

[0049] In one embodiment of the present invention, the elastic ring 24 can be configured as a rubber ring. Rubber possesses excellent elasticity, compressibility, and resilience, allowing the elastic ring 24 to more tightly fit the outer wall of pipelines with different diameters and slightly different shapes, adaptively filling minute gaps to form a more effective dynamic seal and enhancing the prevention of water and soil infiltration. Simultaneously, rubber materials typically exhibit good wear resistance, aging resistance, and certain chemical corrosion resistance (such as resistance to moisture and salt in the soil), effectively extending the service life of the elastic ring 24 in harsh underground environments and ensuring the long-term reliability of the seal. Furthermore, rubber rings are inexpensive and readily available standard parts; when they age and become damaged due to long-term use, they can be easily replaced without replacing the entire pipeline installation assembly 2, significantly reducing subsequent maintenance costs and time.

[0050] In one embodiment of the present invention, the cover plate 112 can be configured as a flip-top cover. Compared with a flat cover plate 112 that needs to be completely removed, the flip-top design allows workers to open or close the manhole 111 simply by rotating the cover, eliminating the need to move the heavy cover plate 112. This greatly simplifies operation, saves time and effort, and facilitates frequent and rapid daily inspections and maintenance of equipment inside the well.

[0051] In one embodiment of the present invention, such as Figure 1 and Figure 2 As shown, a plurality of pre-embedded pipeline holes 121 of the present invention are arranged at intervals along the horizontal direction on the peripheral wall 12.

[0052] This technical solution achieves several advantages. First, by arranging the pre-embedded pipeline holes 121 neatly in the horizontal direction, it avoids arbitrarily drilling holes in the vertical direction of the well wall. This ensures that all pipelines entering the well are concentrated at the same height or on a few clearly defined levels, resulting in a clear, orderly layout. This makes it easier for workers inside the well to identify, access, and operate these pipelines, greatly facilitating subsequent maintenance work such as inspection, replacement, or addition of pipelines.

[0053] Secondly, compared to randomly and dispersedly drilling holes on the circumferential wall 12 of the well body, setting them at intervals along the horizontal direction is a more planned approach. This effectively avoids the formation of localized stress weak points due to excessive concentration of holes, which helps maintain the overall structural strength and stability of the prefabricated well body 1 circumferential wall 12, conforming to best practices in engineering mechanics.

[0054] In one embodiment of the present invention, such as Figure 1 and Figure 2 As shown, the pre-embedded pipeline holes 121 of the present invention are arranged one by one according to their radial dimensions.

[0055] This technical solution offers several advantages. First, by arranging the pre-embedded pipeline holes 121 in order of size, it provides a clear visual index for construction and maintenance personnel. Workers can quickly and accurately locate the corresponding pre-embedded pipeline hole 121 based on the diameter of the pipeline they have, avoiding the tedious process of measuring and comparing dimensions one by one among numerous similar-looking holes. This significantly reduces preparation time and error rates during pipeline installation or replacement.

[0056] Secondly, the orderly arrangement of sizes allows large and small pipelines to be concentrated in specific areas of the well wall. This zoned layout makes the pipeline routing within the well more regular and clear, effectively reducing the possibility of different pipelines crossing, tangling, and interfering with each other within the well space, and facilitating later maintenance.

[0057] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A precast shaft system for use in a ground well on an airfield, characterized in that The prefabricated well body system for the airport ground well comprises a prefabricated well body (1), the prefabricated well body (1) comprises a top wall (11), a peripheral wall (12) and a base (13), the top wall (11), the peripheral wall (12) and the base (13) jointly enclose a well body space (14) for accommodating equipment, a manhole (111) is formed in the top wall (11), a cover plate (112) is arranged in the manhole (111), the cover plate (112) is used for plugging or opening the manhole (111), the projection of the peripheral wall (12) falls within the projection of the base (13) in the vertical direction, and a plurality of pre-buried pipeline holes (121) for pipeline threading are formed in the peripheral wall (12).

2. The precast shaft system for a landside shaft according to claim 1, characterized in that The prefabricated well body system for the airport ground well further comprises a pipeline threading assembly (2), the pipeline threading assembly (2) comprises a threading pipe body (21), a limiting ring (22), a butt joint ring (23), an elastic ring (24) and an anti-seepage film (25), the threading pipe body (21) is installed in the pre-buried pipeline hole (121), the limiting ring (22) is fixedly sleeved outside the threading pipe body (21) and located in the well body space (14), the limiting ring (22) is used for abutting against the inner side of the peripheral wall (12), the butt joint ring (23) is threadedly connected to the threading pipe body (21) and located outside the well body space (14), the butt joint ring (23) is used for abutting against the outer side of the peripheral wall (12), the anti-seepage film (25) is formed in a cylindrical shape, one end of the anti-seepage film (25) is sleeved on the periphery of the butt joint ring (23), and the other end of the anti-seepage film (25) is sleeved on the periphery of the elastic ring (24), and the elastic ring (24) is used for sleeving a pipeline located outside the well body space (14).

3. The precast shaft system for a landside shaft according to claim 2, characterized in that The pipeline threading assembly (2) further comprises a first elastic plugging ring (261) and a second elastic plugging ring (262), the first elastic plugging ring (261) is arranged between the limiting ring (22) and the peripheral wall (12) and used for plugging the gap between the limiting ring (22) and the peripheral wall (12), and the second elastic plugging ring (262) is arranged between the butt joint ring (23) and the peripheral wall (12) and used for plugging the gap between the butt joint ring (23) and the peripheral wall (12). One end of the anti-seepage film (25) is sleeved on the periphery of the second elastic plugging ring (262).

4. The precast shaft system for a landside shaft according to claim 2, characterized in that The prefabricated well body (1) further comprises a grating bottom plate (15), a water pumping pump (16) and a water pumping pipe (17), the grating bottom plate (15) is installed on the base (13) or the peripheral wall (12), the grating bottom plate (15) is used for separating the well body space (14) into a device space (141) and a water collecting space (142) distributed along the up-down direction, the water collecting space (142) is used for collecting liquid entering the device space (141), the water pumping pump (16) is installed in the water collecting space (142) for pumping liquid in the water collecting space (142), one end of the water pumping pipe (17) is connected with the water pumping pump (16), and the other end of the water pumping pipe (17) penetrates through the top wall (11) and extends out of the well body space (14).

5. The precast shaft system for a landside shaft according to claim 4, characterized in that The pipeline penetrating assembly (2) further comprises a blowout preventer (27) and a water guide pipe (28) arranged in the well body space (14), the blowout preventer (27) is formed as a cylindrical structure, the blowout preventer (27) comprises a first end (271) and a second end (272) arranged oppositely and a ring-shaped side wall (273), the ring-shaped side wall (273) encloses a blowout cavity (274), the radial dimension of the first end (271) is greater than that of the second end (272), the first end (271) is sleeved outside the penetrating pipe body (21), the second end (272) is covered outside the limiting ring (22), so that the limiting ring (22) is accommodated in the blowout cavity (274), one end of the water guide pipe (28) is connected with the lower end of the ring-shaped side wall (273) and communicates with the blowout cavity (274), and the other end of the water guide pipe extends towards the water collecting space (142).

6. The precast shaft system for a landside shaft according to claim 5, characterized in that The water guide pipe (28) is formed as an arc-shaped plate structure, which is buckled against the inner side of the peripheral wall (12) to enclose a water guide cavity (281) in cooperation with the peripheral wall (12), which communicates with the blowout cavity (274).

7. The precast shaft system for a landside shaft according to claim 2, characterized in that The elastic ring (24) is arranged as a rubber ring.

8. The precast shaft system for a landside shaft according to claim 1, characterized in that The cover plate (112) is arranged as a flip cover.

9. The precast shaft system for a landside shaft according to claim 1, characterized in that The plurality of pre-embedded pipeline holes (121) are arranged on the peripheral wall (12) in the horizontal direction.

10. The precast shaft system for a landside shaft according to claim 9, characterized in that The plurality of pre-embedded pipeline holes (121) are arranged in the radial dimension size one by one.

Images