Underground parking garage based on shield tunnel working shaft and toughness construction method

Abstract

The application relates to the technical field of civil engineering, and provides an underground parking garage based on a shield tunnel working shaft and a toughness construction method.The underground parking garage comprises a working shaft, two support units which are arranged at intervals in the working shaft, each support unit extends from the bottom of the working shaft to the top of the working shaft, there is a first space between adjacent support units, and there is a second space between each support unit and the shaft wall of the working shaft; a parking unit is arranged in the second space, and the parking unit comprises a ground layer arranged at the top of the working shaft, a plurality of parking layers arranged at intervals between the ground layer and the bottom of the working shaft and fixedly connected to the shaft wall, and a lifting moving system extending from the top of the working shaft to the bottom of the working shaft so that a vehicle to be parked is parked in the ground layer or the plurality of parking layers. The underground parking garage based on the shield tunnel working shaft reasonably utilizes the space in the working shaft, combines the parking unit into the working shaft, and provides a new development direction for limited urban space.

Description

Underground parking garage and its resilient construction method based on shield tunnel working shaft Technical Field

[0001] This application relates to the field of civil engineering technology, and in particular to underground parking garages based on shield tunnel working shafts and their resilient construction methods. Background Technology

[0002] As a key auxiliary facility for large-scale tunnel construction technologies such as shield tunneling, the core function of temporary construction shafts is to provide temporary working space for the shield tunneling machine to enter and exit the tunnel, turn, remove slag and materials, and perform maintenance.

[0003] In existing technologies, temporary construction shafts are generally disposed of by backfilling with soil or sealing with concrete after their construction mission is completed.

[0004] However, backfilling operations require a large amount of backfilling materials (such as sand, gravel, and cement) and machinery operating costs. Furthermore, since the temporary construction shaft is located directly above the track protection zone, subsequent safety conditions are strictly limited, making it difficult to redevelop and utilize the site, which seriously conflicts with the current needs of urban intensive development. Summary of the Invention

[0005] To address the aforementioned problems in the existing technology, this application provides an underground parking garage based on the working shaft of a shield tunnel and a method for its resilient construction. The technical problem to be solved by this application is achieved through the following technical solution.

[0006] The first aspect of this application provides an underground parking garage based on the working shaft of a shield tunnel, including:

[0007] Working shaft;

[0008] Two support units are spaced apart in the working shaft. Each support unit extends from the bottom of the working shaft to the opening of the working shaft. There is a first space between adjacent support units and a second space between each support unit and the shaft wall of the working shaft.

[0009] A parking unit, disposed within the second space, the parking unit comprising:

[0010] The surface layer is located at the wellhead.

[0011] Multi-level parking spaces are spaced between the ground level and the bottom of the manhole, and are fixedly connected to the manhole wall;

[0012] The lifting and moving system extends from the wellhead to the bottom of the well, so that the vehicle to be parked can choose to park in one of the ground level and multiple parking levels.

[0013] In one specific embodiment, each parking level includes a single row of parking areas respectively located on both sides of the lifting and moving system.

[0014] In one specific embodiment, the single-row parking area includes multiple parking spaces spaced at intervals.

[0015] In one specific embodiment, the lifting and moving system includes:

[0016] The moving mechanism is capable of lifting and lowering the vehicle, and can also move horizontally on either the ground floor or the parking floor.

[0017] A transport mechanism for moving vehicles to or away from the mobile mechanism.

[0018] In one specific embodiment, the ground level includes a vehicle exit and a vehicle entrance located on both sides of the lifting and moving system.

[0019] In one specific embodiment, the underground parking garage based on the working shaft of a shield tunnel further includes:

[0020] The equipment room unit is located within the first space and is fixedly connected to the support unit and the well wall.

[0021] In one specific embodiment, the equipment room unit includes at least one of the following: fire protection facilities, ventilation facilities, monitoring facilities, and power supply facilities.

[0022] In one specific embodiment, the sidewalls of the working shaft have a reinforced structure.

[0023] In one specific embodiment, the cross-section of the working shaft is rectangular.

[0024] The second aspect of this application provides a resilient construction method for an underground parking garage based on a shield tunnel working shaft, applied to a working shaft having two spaced-apart support units, each of which extends from the bottom of the working shaft to the shaft opening. The resilient construction method includes the following steps:

[0025] S1: Based on the positions of the two support units, the space between adjacent support units is designated as the first space, and the space between each support unit and the wall of the working shaft is designated as the second space.

[0026] S2: In the second space, the working shaft is modified to form a parking unit; the parking unit includes: a ground floor, multiple parking floors and a lifting and moving system; wherein, the ground floor is located at the shaft opening, the multiple parking floors are spaced apart between the ground floor and the bottom of the shaft, and the multiple parking floors are fixedly connected to the shaft wall, and the lifting and moving system extends from the shaft opening to the bottom of the shaft.

[0027] Compared with the prior art, the beneficial effects of this application are:

[0028] The underground parking garage based on the working shaft of the shield tunnel provided in this application makes reasonable use of the space within the working shaft, integrates parking units into the working shaft, realizes the reuse of the working shaft, and provides a new development direction for limited urban space. Attached Figure Description

[0029] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0030] Figure 1 is a schematic diagram of the structure before the modification of the working shaft of the shield tunnel provided in the embodiment of this application;

[0031] Figure 2 is a schematic diagram of the ground layer provided in an embodiment of this application;

[0032] Figure 3 is a schematic diagram of the parking layer provided in an embodiment of this application;

[0033] Figure 4 is a structural schematic diagram of an underground parking garage based on a shield tunnel working shaft provided in an embodiment of this application;

[0034] Figure 5 is a flowchart of the steps of the toughness construction method of underground parking garage based on shield tunnel working shaft provided in the embodiment of this application.

[0035] Figure label:

[0036] 100: Working shaft; 101: Support unit; 102: First space; 103: Second space; 200: Ground floor; 201: Vehicle exit; 202: Vehicle entrance; 300: Parking floor; 400: Lifting and moving system; 500: Equipment room unit. Detailed Implementation

[0037] The present application will now be described in detail with reference to the accompanying drawings and specific embodiments and application scenarios. Obviously, the described embodiments are only a part of the embodiments of the present application, and not all of them. Unless otherwise specified, the following embodiments and features can be combined with each other. All other embodiments obtained by those skilled in the art based on the embodiments of the present application are within the scope of protection of the present application.

[0038] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and the number of objects is not limited; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0039] Please refer to Figure 1. Figure 1 is a structural schematic diagram of the working shaft of a shield tunnel before its modification, as provided in this embodiment of the application. The underground parking garage provided in this embodiment is obtained by modifying a temporary working shaft 100 with internal support units 101. In this embodiment, the working shaft 100 has two spaced-apart support units 101 inside. Each support unit 101 extends from the bottom of the working shaft 100 to the opening of the working shaft 100. There is a first space 102 between adjacent support units 101, and a second space 103 between each support unit 101 and the shaft wall of the working shaft 100. Specifically, as shown in Figure 1, the two support units 101 divide the working shaft 100 into a middle first space 102 and two second spaces 103 on both sides. For example, the support unit 101 includes multiple concrete support structures.

[0040] Please refer to Figures 2, 3, and 4. This embodiment provides an underground parking garage based on a shield tunnel working shaft, comprising: a working shaft 100, two support units 101, and parking units. Due to the presence of the two support units 101, this embodiment comprehensively considers the internal space utilization and structural strength of the working shaft 100, and places the parking units within a second space 103. Furthermore, the parking units are mechanical multi-level parking garages. In this embodiment, the underground parking garage has two parking units, located in two separate second spaces 103.

[0041] In this embodiment, a parking unit includes a ground level 200, multiple parking levels 300, and a lifting and moving system 400. The ground level 200 is located at the manhole opening. The multiple parking levels 300 are spaced apart between the ground level 200 and the bottom of the manhole, and are fixedly connected to the manhole wall. The lifting and moving system 400 extends from the manhole opening to the bottom of the manhole, allowing vehicles to park either on the ground level 200 or on the multiple parking levels 300.

[0042] Specifically, this embodiment modifies the working shaft 100, strictly adhering to the principle of not altering the existing structural support system within the working shaft 100, and using this as the fundamental premise for parking unit planning. The existing structure within the working shaft 100 serves as the support for the parking units, rationally utilizing the internal space of the working shaft 100 to optimize the parking space layout to the greatest extent possible. This aims to maximize the number of parking spaces and achieve a rational layout, significantly increasing the parking capacity of the parking garage and improving the convenience and smoothness of vehicle entry and exit, thereby fully enhancing the space utilization efficiency and overall effectiveness of the parking garage.

[0043] In this embodiment, the working shaft 100 has a rectangular cross-section. The ground floor 200 includes a vehicle exit 201 and a vehicle entrance 202 located on both sides of the lifting and moving system 400. Each parking floor 300 includes a single-row parking area located on both sides of the lifting and moving system 400.

[0044] In this embodiment, the lifting and moving system 400 includes a moving mechanism and a transporting mechanism. The moving mechanism is capable of lifting and moving the vehicle vertically, and can also move horizontally between the ground floor 200 and the parking floor 300. The transporting mechanism is used to move the vehicle to or away from the moving mechanism.

[0045] Please refer to Figures 2, 3, and 4, where Figure 4 is a cross-sectional view of section II in Figure 3. To maximize space utilization, the parking level 300 in this embodiment has two single-row parking areas, each including multiple parking spaces spaced apart. In this embodiment, the parking level 300 is hollow, meaning there is a gap between the two single-row parking areas. Each parking level 300 is vertically aligned, forming a vehicle movement channel running from the bottom of the manhole to the top, allowing the lifting and moving system 400 to transport vehicles to be parked.

[0046] In one embodiment, after the vehicle to be parked enters the vehicle entrance 202, the transport mechanism moves the vehicle to the moving mechanism. The moving mechanism first moves vertically in the vehicle moving channel to the parking level 300 where the target parking space is located, and then moves horizontally to align the vehicle to be parked with the target parking space. The transport mechanism then moves the vehicle to be parked into the target parking space to complete the parking.

[0047] In one embodiment, the multi-level parking level 300 and the lifting and moving system 400 are fixed within the working shaft 100 by an anchoring structure. Exemplarily, the multi-level parking level 300 is an intelligent three-dimensional mechanical parking system, and the parking unit further includes: an automatic control system for the mechanical parking garage, a safety assurance system for the mechanical parking garage, and a monitoring system for the storage and retrieval of vehicles in the mechanical parking garage. The lifting and moving system 400 includes: a lifting drive assembly, a lateral drive assembly, a walking drive assembly for the intelligent transporter, a centering drive assembly for the intelligent transporter, a lifting drive assembly for the intelligent transporter, a PLC programmable controller, a frequency converter, a laser rangefinder, a cable reel, limit switches, photoelectric switches, proximity switches, an operation panel / display, etc.

[0048] In one embodiment, the underground parking garage based on the shield tunnel working shaft 100 further includes: an equipment room unit 500, which is disposed in the first space 102 and is fixedly connected to the support unit 101 and the shaft wall.

[0049] Specifically, since the first space 102 is located between the two second spaces 103, in order to make reasonable use of the space within the working shaft 100 while avoiding the support unit 101, this embodiment sets up an equipment room unit 500 in the first space 102 to provide supporting facilities for the two parking units. Furthermore, the equipment room unit 500 can be fixed to the support unit 101 and the shaft wall by constructing a steel structure or a precast concrete support structure.

[0050] In one feasible embodiment, the equipment room unit 500 includes at least one of the following: fire protection facilities, ventilation facilities, monitoring facilities, and power supply facilities. Specifically, arranging the equipment room unit 500 within the work shaft 100 maximizes the use of the shaft space and reduces the occupancy of ground space. The ground floor 200 only requires a small amount of space to design the vehicle exit 201 and vehicle entrance 202, ensuring that pedestrian and vehicle traffic flows do not interfere with each other.

[0051] Furthermore, since the working shaft 100 is a temporary working shaft, the strength of the original supporting structure still needs to be strengthened. Therefore, in this embodiment, the side walls of the working shaft 100 are provided with reinforced structures such as composite walls and bottom plates to meet the structural strength requirements of the underground parking garage.

[0052] A second aspect of this embodiment also provides a resilient construction method for an underground parking garage based on a shield tunnel working shaft. This method is applied to a working shaft 100 having two spaced-apart support units 101, each extending from the bottom of the working shaft 100 to its opening. Referring to Figure 5, the resilient construction method for an underground parking garage based on a shield tunnel working shaft provided in this embodiment includes the following steps:

[0053] S1: Based on the positions of the two support units 101, a first space 102 is planned between adjacent support units 101, and a second space 103 is planned between each support unit 101 and the wall of the working shaft 100.

[0054] S2: Within the second space 103, the working shaft 100 is modified to form a parking unit. The parking unit includes: a ground level 200, multi-level parking levels 300, and a lifting and moving system 400. The ground level 200 is located at the shaft opening, the multi-level parking levels 300 are spaced apart between the ground level 200 and the bottom of the shaft, and the multi-level parking levels 300 are fixedly connected to the shaft wall. The lifting and moving system 400 extends from the shaft opening to the bottom of the shaft.

[0055] In one feasible approach, the resilient construction method for underground parking garages based on shield tunnel working shafts also includes the following steps:

[0056] S3: Within the first space 102, the working shaft 100 is modified to form an equipment room unit 500.

[0057] In this embodiment, the modification of the working shaft 100 includes structural reinforcement and waterproofing. Furthermore, structural reinforcement includes the installation of diaphragm walls, composite walls, and a base slab, while waterproofing includes measures such as sealing the bottom space with diaphragm walls and applying a cement-based penetrating crystalline waterproofing material to the inner side of the diaphragm walls. The final structural strength of the underground parking garage meets construction standards, and the waterproofing quality reaches the Class II waterproofing standard for underground mechanical parking garages, significantly improving structural toughness.

[0058] This embodiment further uses a rectangular temporary working shaft 100 as an example to illustrate the economic and social benefits of the underground parking garage based on the working shaft of a shield tunnel provided in this embodiment.

[0059] The main structure of a rectangular temporary working shaft 100 adopts a one-story underground tunnel structure with internal clear dimensions of 31.6m (length) × 19m (width) × 53.4m (depth). Based on the environmental category of the working shaft 100 and the level of impact on the concrete structure, the retaining structure of the shaft cannot be considered as a permanent structure. It is necessary to construct a 0.4~0.7m thick composite wall and a 1.2m thick base slab on the inner side of the retaining structure of the working shaft, and add 1~2 support systems to strengthen the structure. A 1m diaphragm wall is used as the retaining structure. The lower rock stratum section of the shaft is designed with a stilt design. The design service life is 5 years. After structural reinforcement and waterproofing, the working shaft can be used to a depth of about 35m. The underground parking garage resulting from the renovation of the 100-meter vertical shaft is a vertical lift intelligent automated parking system. This underground parking garage consists of two parking units, each with nine parking levels. The total depth of the parking units is 34.7 meters, providing a total of 160 underground mechanical parking spaces, including 120 SUV spaces and 40 sedan spaces. The ground level occupies approximately 450 square meters. 2 The existing civil engineering cost of the rectangular temporary working shaft 100 is approximately 36 million yuan. The civil engineering renovation investment for the underground parking garage provided in this embodiment is 8.53 million yuan, which is comparable to the backfilling cost. That is, this embodiment can enhance the land use value and achieve sustainable development of land resources while keeping the investment cost relatively unchanged, bringing a new direction to the development of limited urban space.

[0060] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0061] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. An underground parking garage based on the working shaft of a shield tunnel, characterized in that, include: Working shaft; The cross-section of the working shaft is rectangular; Two support units are spaced apart within the working shaft. Each support unit extends from the bottom of the working shaft to the opening of the working shaft. There is a first space between adjacent support units and a second space between each support unit and the shaft wall. An equipment room unit is disposed within the first space and is fixedly connected to the support units and the shaft wall. A parking unit is provided within the second space. The parking unit includes: a ground floor located at the manhole opening; multiple parking floors spaced apart between the ground floor and the bottom of the manhole and fixedly connected to the manhole wall; and a lifting and moving system extending from the manhole opening to the bottom of the manhole to allow vehicles to park in one of the ground floor and the multiple parking floors. Each parking floor includes a single row of parking areas located on both sides of the lifting and moving system.

2. The underground parking garage based on the working shaft of a shield tunnel as described in claim 1, characterized in that, The single-row parking area includes multiple parking spaces spaced at intervals.

3. The underground parking garage based on the working shaft of a shield tunnel as described in claim 2, characterized in that, The lifting and moving system includes: a moving mechanism capable of driving the vehicle to move up and down, and to move horizontally on either the ground floor or the parking floor; and a transport mechanism for moving the vehicle to or away from the moving mechanism.

4. The underground parking garage based on the working shaft of a shield tunnel as described in claim 1, characterized in that, The ground level includes vehicle exits and vehicle entrances located on both sides of the lifting and moving system.

5. The underground parking garage based on the working shaft of a shield tunnel according to claim 1, characterized in that, The equipment room unit includes at least one of the following: fire protection facilities, ventilation facilities, monitoring facilities, and power supply facilities.

6. The underground parking garage based on the working shaft of a shield tunnel according to claim 1, characterized in that, The sidewalls of the working shaft have a reinforced structure.

7. A method for constructing a resilient underground parking garage based on a shield tunnel working shaft, characterized in that, The toughness construction method is applied to a working shaft with two spaced-apart support units, each of which extends from the bottom of the working shaft to the opening. Includes the following steps: S1: Based on the positions of the two support units, the space between adjacent support units is designated as the first space, and the space between each support unit and the wall of the working shaft is designated as the second space. S2 Within the second space, the working shaft is modified to form a parking unit; The parking unit includes: a ground floor, multiple parking levels, and a lifting and moving system; wherein, the ground floor is located at the manhole opening, the multiple parking levels are spaced apart between the ground floor and the bottom of the manhole, and the multiple parking levels are fixedly connected to the manhole wall, and the lifting and moving system extends from the manhole opening to the bottom of the manhole.

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