Vault sealing lining structure for a cavern with a hook plate underground rock lining

Abstract

The utility model discloses a hook plate type underground rock lining cavern's dome sealing lining structure belongs to compressed air energy storage technology field. Hook plate type underground rock lining cavern is arranged in the surrounding rock, and the concrete lining layer is arranged between hook plate type underground rock lining cavern and surrounding rock. Wherein, the dome sealing lining structure of hook plate type underground rock lining cavern includes dome framework, columnar framework, fan ring type airtight layer and column ring type airtight layer, and dome framework, columnar framework provides hook plate type connecting piece respectively, and columnar framework is fixedly connected on the bottom of dome framework through hook plate type connecting piece. Fan ring type airtight layer is fixedly connected between dome framework through hook plate type connecting piece, and column ring type airtight layer is fixedly connected between columnar framework through hook plate type connecting piece, and the dome sealing lining structure of underground rock lining cavern is formed. Compared with integral steel plate sealing layer, it is more convenient, and the work efficiency is higher, and the cost is lower.

Description

Technical Field

[0001] This utility model relates to the field of compressed air energy storage technology, and in particular to the dome-sealed lining structure of hook-plate type underground rock-lined caverns. Background Technology

[0002] Compressed air energy storage systems primarily utilize surface steel tanks / pipes, salt caverns, and artificially lined chambers as high-pressure air storage containers. Currently, large-scale storage facilities mainly rely on salt caverns and artificially lined chambers. With the continuous advancement of industrialization, artificially lined chambers will become a widely used gas storage method. Unlike general underground chambers, artificially lined chambers specifically designed for gas storage need to withstand high internal pressure, temperature variations, and high-frequency alternating loads, posing new challenges to the design of the chamber's sealing layer.

[0003] In traditional designs, steel plates are often used as sealing materials, but due to their high cost and good insulation performance, they perform poorly under high-temperature loads. Recent studies have shown that rubber materials meet the basic requirements for sealing layers in high-pressure gas storage chambers. They are not only less expensive but also possess excellent mechanical and sealing properties. However, traditional rubber gas storage materials are usually manufactured as a single structure, which presents some difficulties during the installation of underground gas storage chambers. In traditional construction, workers often descend from the top of the chamber to the bottom for hoisting operations, which is extremely difficult and dangerous. How to design a sealing lining structure that is easy to install, highly efficient, has excellent sealing performance, lower cost, and is safe to construct has become an urgent problem to be solved. Utility Model Content

[0004] In view of this, the present invention provides a dome sealing lining structure for a hook-plate type underground rock-lined cavern, which is more convenient to install, more efficient, and less expensive than an integral sealing layer, and is therefore more suitable for practical use.

[0005] To achieve the above objectives, the technical solution for the dome-sealed lining structure of the hook-plate type underground rock-lined cavern provided by this utility model is as follows: This utility model provides a dome-sealed inner lining structure for a hook-plate type underground rock-lined chamber. The hook-plate type underground rock-lined chamber is located inside the surrounding rock (27), and a concrete lining layer (1) is provided between the hook-plate type underground rock-lined chamber and the surrounding rock (27). The dome-sealed lining structure of the hook-plate type underground rock lining chamber includes a dome frame (3), a column frame (17), a fan-ring type airtight layer (4), and a column-ring type airtight layer (18). The dome frame (3) and the column frame (17) are respectively provided with hook-plate type connectors. The columnar frame (17) is fixedly connected to the bottom of the dome frame (3) by the hook plate connector; The fan-shaped airtight layer (4) is fixedly connected to the dome frame (3) through the hook plate connector, and the column-shaped airtight layer (18) is fixedly connected to the column frame (17) through the hook plate connector, so that the fan-shaped airtight layer (4) and the column-shaped airtight layer (18) together constitute the dome sealing lining structure of the underground rock-lined cavern.

[0006] The dome-sealed lining structure of the hook-plate type underground rock-lined cavern provided by this utility model can be further realized by the following technical measures.

[0007] Preferably, the dome frame (3) includes a spherical plate (9), an annular frame (10), multiple arc-shaped frames (11), an outer ring frame (12), an inner ring frame (13), a radial frame (14), and an annular platform (22). The inner diameter of the annular skeleton (10) is equal to the diameter of the spherical shell plate (9), and the annular skeleton (10) is fixedly disposed on the outer ring of the spherical shell plate (9). The diameter of the outer ring skeleton (12) is larger than the diameter of the inner ring skeleton (13), and the diameter of the inner ring skeleton (13) is larger than the diameter of the spherical shell plate (9). One end of the arc-shaped frame (11) is fixedly connected to the ring frame (10), and the other end of the arc-shaped frame (11) is fixedly connected to the outer ring frame (12). One end of the radial skeleton (14) is fixedly connected to the outer ring skeleton (12), and the other end of the radial skeleton (14) is fixedly connected to the inner ring skeleton (13), so that an annular band is formed between the outer ring skeleton (12) and the inner ring skeleton (13). The annular platform (22) is disposed within the annular belt, wherein the annular platform (22) is fixedly connected between the outer ring skeleton (12), the inner ring skeleton (13) and the radial skeleton (14) by a hook plate connector; One end of the columnar skeleton (17) is fixedly connected to the inner ring skeleton (13). The spherical plate (9) is used to seal the construction shaft.

[0008] Preferably, the hook-plate connector includes a first hook-plate connector, a second hook-plate connector, a third hook-plate connector, a fourth hook-plate connector, and a fifth hook-plate connector. The first hook plate connector is disposed at the connection between the annular frame (10) and the fan-shaped airtight layer (4); The second hook plate connector is disposed at the connection between the arc-shaped frame (11) and the fan-shaped airtight layer (4); The third hook plate connector is located at the connection between the outer ring skeleton (12), the fan-shaped airtight layer (4), and the annular platform (22); The fourth hook plate connector is located at the connection between the annular platform (22) and the column ring airtight layer (18); The fifth hook plate connector is located at the connection between the column ring airtight layer (18) and the columnar skeleton (17).

[0009] Preferably, the first hook-plate connector includes a first fixed base plate (23). The first fixed base plate (23) has a length direction and a width direction. The first fixed base plate (23) has a clamp with a semi-open accommodating space on one side along the length direction. The top edge of the clamp with the semi-open accommodating space extends inward to form a protrusion, so that a groove is formed on the inner side corresponding to the protrusion in the clamp with the semi-open accommodating space. The protrusion and the groove together form a limiting groove.

[0010] Preferably, the second hook-plate connector includes a second fixed base plate (24). The second fixed base plate (24) has a length direction and a width direction. The second fixed base plate (24) forms a clamp with a semi-open accommodating space at the central axis along the length direction. The top edges on both sides of the clamp with the semi-open accommodating space extend inward to form a protrusion, so that a groove is formed on the inner side corresponding to the protrusion in the clamp with the semi-open accommodating space. The protrusion and the groove together form a limiting groove.

[0011] Preferably, the fifth hook plate connector includes a fifth fixed base plate (26). The fifth fixed base plate (26) has a length direction and a width direction. The fifth fixed base plate (26) forms a clamp with a semi-open accommodating space at the central axis along the length direction. The top edges on both sides of the clamp with the semi-open accommodating space extend inward to form a protrusion, so that a groove is formed on the inner side corresponding to the protrusion in the clamp with the semi-open accommodating space. The protrusion and the groove together form a limiting groove.

[0012] Preferably, the fourth hook plate connector includes a fourth fixed base plate (25). Viewed from the radial section of the fourth fixed base plate (25), the fourth fixed base plate (25) forms a clamp with a semi-open accommodating space at the axis of symmetry. The top edges on both sides of the clamp with the semi-open accommodating space extend inward to form a protrusion, so that a groove is formed on the inner side corresponding to the protrusion in the clamp with the semi-open accommodating space. The protrusion and the groove together form a limiting groove. The fourth fixed base plate (25) has a bend in the direction away from the clamp with the semi-open accommodating space, and two connecting wings are formed at the two bends of the fourth fixed base plate (25).

[0013] Preferably, the third hook plate connector includes a third fixed base plate (15). Viewed from the radial section of the third fixed base plate (15), the third fixed base plate (15) forms a clamp with a semi-open accommodating space at the axis of symmetry. The top edges on both sides of the clamp with the semi-open accommodating space extend inward to form a protrusion, so that a groove is formed on the inner side corresponding to the protrusion in the clamp with the semi-open accommodating space. The protrusion and the groove together form a limiting groove. The third fixed base plate (15) has a bend in the direction of approaching the third hook plate, and two connecting wings are formed at the two bends of the third fixed base plate (15).

[0014] Preferably, the dome sealing lining structure of the hook-plate type underground rock-lined cavern also includes an extension (16) and a sliding safety lock (5). The extension (16) extends distally from the axis of symmetry of the third fixed base plate (15). The sliding safety lock (5) includes a first connecting part and a second connecting part. The sliding safety latch (5) is disposed on the extension (16) via the first connecting part, so that the sliding safety latch (5) can slide along the extension (16). One end of the second connecting part is fixedly connected to the first connecting part, and the other end of the second connecting part is used to connect external auxiliary components.

[0015] Preferably, the dome sealing lining structure of the hook-plate type underground rock-lined cavern also includes a limiting element (19) and a roller (21). The limiting member (19) is fixedly disposed at the end of the extension (16). The first connecting part of the sliding safety lock (5) is provided with a box-type structure. The box structure is fitted with the limiting member (19) to form an accommodating space between the box structure and the limiting member (19). The roller (21) is disposed in the accommodating space, and the rolling direction of the roller (21) is consistent with the sliding direction of the sliding safety lock (5).

[0016] Preferably, the outline dimensions of the roller (21) are adapted to the dimensions of the accommodating space.

[0017] Preferably, the dome sealing lining structure of the hook-plate type underground rock-lined cavern also includes anchor bolts (6) and gaskets (20). The anchor rod (6) passes through the extension (16), and the anchor rod (6) is fixed with a nut, so that the other end of the anchor rod (6) is fixed to the interior of the surrounding rock (27). The gasket (20) is disposed between the limiting member (19) and the nut, wherein the inner diameter of the gasket (20) is larger than the diameter of the anchor rod (6) but smaller than the inner diameter of the nut, and the outer diameter of the gasket (20) is larger than the outer diameter of the nut.

[0018] Preferably, the auxiliary components include a construction scaffold.

[0019] The dome-sealed lining structure of the hook-plate type underground rock-lined cavern provided by this utility model embodiment does not require an integral sealed lining structure inside the concrete lining layer 1 during construction. Instead, a skeleton is first laid out inside the concrete lining layer 1, and then the airtight layer is connected between the skeletons to finally form the dome-sealed lining structure of the underground rock-lined cavern. Compared with the integral sealing layer, the installation of the dome-sealed lining structure of the underground rock-lined cavern is more convenient, more efficient, and less expensive. Attached Figure Description

[0020] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of the invention. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings: Figure 1 A cross-sectional view showing the relationship between the sealed chamber, concrete lining, and surrounding rock structure involved in the dome-sealed lining structure of the hook-plate type underground rock-lined chamber provided in this embodiment of the utility model. Figure 2 A three-dimensional schematic diagram of the combined dome sealing lining structure of the hook-plate type underground rock-lined cavern provided in this embodiment of the utility model. Figure 3 Axial cross-sectional view of the annular operating platform of the sealed chamber, which is part of the dome-sealed lining structure of the hook-plate type underground rock-lined chamber provided in this embodiment of the utility model. Figure 4 An axial cross-sectional view of the dome-shaped spherical plate of the sealed chamber dome, which is part of the dome-sealed lining structure of the hook-plate type underground rock-lined chamber provided in this embodiment of the utility model. Figure 5 A schematic diagram showing the connection between the sliding safety lock connection device and the outer ring skeleton of the dome sealing lining structure of the hook-plate type underground rock-lined cavern provided in this embodiment of the utility model. Figure 6 A three-dimensional schematic diagram of the fan-ring airtight layer involved in the dome sealing lining structure of the hook-plate type underground rock-lined cavern provided for the embodiment of this utility model. Figure 7 A radial cross-sectional view of the first hook-plate connector involved in the dome sealing lining structure of the hook-plate type underground rock-lined cavern provided in this embodiment of the utility model; Figure 8 A radial cross-sectional view of the second hook-plate connector involved in the dome sealing lining structure of the hook-plate type underground rock-lined cavern provided in this embodiment of the utility model. Figure 9 A radial cross-sectional view of the third hook-plate connector involved in the dome sealing lining structure of the hook-plate type underground rock-lined cavern provided in this embodiment of the utility model. Figure 10 A radial cross-sectional view of the fourth hook-plate connector involved in the dome sealing lining structure of the hook-plate type underground rock-lined cavern provided in this embodiment of the utility model. Figure 11 A radial cross-sectional view of the fifth hook-plate connector involved in the dome sealing lining structure of the hook-plate type underground rock-lined cavern provided in this embodiment of the utility model. Figure 12 A cross-sectional view of the junction of the annular skeleton and the arc-shaped skeleton involved in the dome sealing lining structure of the hook-plate type underground rock-lined cavern provided in this embodiment of the utility model. Figure 13 A flowchart illustrating the construction steps of the dome-sealed lining structure for a hook-plate type underground rock-lined cavern, as provided in this embodiment of the utility model.

[0021] Explanation of reference numerals in the attached figures: 1-Concrete lining layer, 3-Dome skeleton, 4-Fan-ring airtight layer, 5-Sliding safety lock, 6-Anchor bolt, 7-Connecting bolt, 8-Weld, 9-Spherical shell plate, 10-Ring skeleton, 11-Arc skeleton, 12-Outer ring skeleton, 13-Inner ring skeleton, 14-Radial skeleton, 15-Third fixed base plate, 16-Extension, 17-Columnar skeleton, 18-Column-ring airtight layer, 19-Limiting element, 20-Gasket, 21-Roller, 22-Ring platform, 23-First fixed base plate, 24-Second fixed base plate, 25-Fourth fixed base plate, 26-Fifth fixed base plate, 27-Surrounding rock. Detailed Implementation

[0022] In view of this, the present invention provides a dome sealing lining structure for a hook-plate type underground rock-lined cavern, which is more convenient to install, more efficient, and less expensive than an integral steel plate sealing layer, and is therefore more suitable for practical use.

[0023] To further illustrate the technical means and effects adopted by this utility model to achieve its intended purpose, the following, in conjunction with the accompanying drawings and preferred embodiments, details the specific implementation, structure, features, and effects of a hook-plate type underground rock-lined tunnel dome sealing lining structure proposed according to this utility model. In the following description, different "embodiments" or "embodiments" do not necessarily refer to the same embodiment. Furthermore, specific features, structures, or characteristics in one or more embodiments can be combined in any suitable form.

[0024] In this article, the term "and / or" is merely a description of the relationship between related objects, indicating that there can be three relationships, such as A and / or B. Specifically, it can mean that A and B can be included at the same time, A can exist alone, or B can exist alone, and any of the above three situations can be met.

[0025] Dome-sealed lining structure of hook-plate type underground rock-lined cavern See appendix Figure 1 -Appendix Figure 12This utility model embodiment provides a dome-sealed lining structure for a hook-plate type underground rock-lined chamber. The hook-plate type underground rock-lined chamber is located inside surrounding rock 27, and a concrete lining layer 1 is provided between the hook-plate type underground rock-lined chamber and the surrounding rock 27. The dome-sealed lining structure of the hook-plate type underground rock-lined chamber includes a dome frame 3, columnar frames 17, fan-ring type airtight layers 4, and column-ring type airtight layers 18. The dome frame 3 and columnar frames 17 are respectively provided with hook-plate type connectors. The columnar frames 17 are fixedly connected to the bottom of the dome frame 3 through hook-plate type connectors; the fan-ring type airtight layers 4 are fixedly connected between the dome frames 3 through hook-plate type connectors; and the column-ring type airtight layers 18 are fixedly connected between the columnar frames 17 through hook-plate type connectors, so that the fan-ring type airtight layers 4 and the column-ring type airtight layers 18 together constitute the dome-sealed lining structure of the underground rock-lined chamber.

[0026] The dome-sealed lining structure of the hook-plate type underground rock-lined cavern provided by this utility model embodiment does not require an integral sealed lining structure inside the concrete lining layer 1 during construction. Instead, a skeleton is first laid out inside the concrete lining layer 1, and then the airtight layer is connected between the skeletons to finally form the dome-sealed lining structure of the underground rock-lined cavern. Compared with the integral sealing layer, the installation of the dome-sealed lining structure of the underground rock-lined cavern is more convenient, more efficient, and less expensive.

[0027] The dome frame 3 includes a spherical plate 9, an annular frame 10, multiple arc-shaped frames 11, an outer ring frame 12, an inner ring frame 13, a radial frame 14, and an annular platform 22. The inner diameter of the annular frame 10 is equal to the diameter of the spherical shell plate 9, and the annular frame 10 is fixedly installed at the outer ring of the spherical shell plate 9. The diameter of the outer ring frame 12 is larger than the diameter of the inner ring frame 13, and the diameter of the inner ring frame 13 is larger than the diameter of the spherical shell plate 9. One end of the arc-shaped frame 11 is fixedly connected to the annular frame 10, and the other end of the arc-shaped frame 11 is fixedly connected to the outer ring frame 12. One end of the radial frame 14 is fixedly connected to the outer ring frame 12, and the other end of the radial frame 14 is fixedly connected to the inner ring frame 13, so that an annular band is formed between the outer ring frame 12 and the inner ring frame 13. The annular platform 22 is set in the annular band, wherein the annular platform 22 is fixedly connected between the outer ring frame 12, the inner ring frame 13, and the radial frame 14 by hook-plate connectors. One end of the columnar frame 17 is fixedly connected to the inner ring frame 13. The spherical shell plate 9 is sealed in the construction shaft. In this case, the dome frame 3 is easy to form, and the connection reliability is high when connected to the dome frame 3 by hook-plate connectors.

[0028] The hook-plate connector includes a first hook-plate connector, a second hook-plate connector, a third hook-plate connector, a fourth hook-plate connector, and a fifth hook-plate connector. The first hook-plate connector is located at the connection between the annular frame 10 and the fan-shaped airtight layer 4; the second hook-plate connector is located at the connection between the arc-shaped frame 11 and the fan-shaped airtight layer 4; the third hook-plate connector is located at the connection between the outer ring frame 12, the fan-shaped airtight layer 4, and the annular platform 22; the fourth hook-plate connector is located at the connection between the annular platform 22 and the column-shaped airtight layer 18; and the fifth hook-plate connector is located at the connection between the column-shaped airtight layer 18 and the columnar frame 17. In this configuration, different types of hook-plate connectors can be used depending on the specific conditions of different connection points, resulting in better adaptability.

[0029] The first hook-plate connector includes a first fixed base plate 23. The first fixed base plate 23 has a length direction and a width direction. Along its length direction, the first fixed base plate 23 has a semi-open accommodating space clamp. The top edge of the clamp with the semi-open accommodating space extends inward to form a protrusion, creating a groove on the inner side of the clamp corresponding to the protrusion. The protrusion and the groove together form a limiting groove. In this configuration, the fan-shaped airtight layer 4 can be connected to the annular frame 10 using this semi-open accommodating space clamp, resulting in high connection reliability.

[0030] The second hook-plate connector includes a second fixed base plate 24. The second fixed base plate 24 has a length direction and a width direction. Along its length direction, a clamp with a semi-open accommodating space is formed at the central axis. The top edges on both sides of the clamp with the semi-open accommodating space extend inward to form protrusions, creating grooves on the inner sides corresponding to the protrusions within the clamp with the semi-open accommodating space. The protrusions and grooves together form a limiting groove. In this configuration, the fan-shaped airtight layer 4 can be connected to the arc-shaped frame 11 using this semi-open accommodating space clamp, resulting in high connection reliability.

[0031] The fifth hook-plate connector includes a fifth fixed base plate 26. The fifth fixed base plate 26 has a length direction and a width direction. Along its length direction, at its central axis, the fifth fixed base plate 26 forms a clamp with a semi-open accommodating space. The top edges on both sides of the clamp with the semi-open accommodating space extend inward to form protrusions, such that grooves are formed on the inner sides of the clamp corresponding to the protrusions. The protrusions and grooves together form a limiting groove. In this configuration, the column-ring type airtight layer 27 can be connected to the columnar frame 26 using this semi-open accommodating space clamp, resulting in high connection reliability.

[0032] The fourth hook-plate connector includes a fourth fixed base plate 25. Viewed from a radial cross-section, the fourth fixed base plate 25 forms a clamp with a semi-open accommodating space at its axis of symmetry. The top edges on both sides of the clamp with the semi-open accommodating space extend inward to form protrusions, creating grooves on the inner sides corresponding to the protrusions within the clamp with the semi-open accommodating space. The protrusions and grooves together form a limiting groove. The fourth fixed base plate 25 has angles pointing away from the clamp with the semi-open accommodating space, forming two connecting wings at the two angles. In this configuration, the column-ring type airtight layer 27 can be connected to the annular platform 2 using the semi-open accommodating space clamp, resulting in high connection reliability.

[0033] The third hook-plate connector includes a third fixed base plate 15. Viewed from a radial cross-section, the third fixed base plate 15 forms a clamp with a semi-open accommodating space at its axis of symmetry. The top edges on both sides of the clamp with the semi-open accommodating space extend inward to form protrusions, creating grooves on the inner sides corresponding to the protrusions within the clamp with the semi-open accommodating space. The protrusions and grooves together form a limiting groove. The third fixed base plate 15 has angles pointing towards the direction of the third hook plate, forming two connecting wings at the two angles. In this configuration, the fan-shaped airtight layer 4 and the annular platform 2 can be connected to the outer ring frame 12 using this semi-open accommodating space clamp, resulting in high connection reliability.

[0034] The dome-sealed lining structure of the hook-plate type underground rock-lined cavern also includes an extension 16 and a sliding safety lock 5. The extension 16 extends distally from the symmetrical axis of the third fixed base plate 15. The sliding safety lock 5 includes a first connecting part and a second connecting part. The sliding safety lock 5 is disposed on the extension 16 through the first connecting part, allowing it to slide along the extension 16. One end of the second connecting part is fixedly connected to the first connecting part, and the other end is used for external connection of auxiliary components. In this configuration, the extension 16 and the sliding safety lock 5 can be used to connect auxiliary components externally. In this embodiment, the auxiliary components include a construction scaffold, making the construction process more convenient.

[0035] The dome-sealed lining structure of the hook-plate type underground rock-lined cavern also includes a limiting member 19 and a roller 21. The limiting member 19 is fixedly installed at the end of the extension 16. The first connecting part of the sliding safety lock 5 has a box-type structure, which fits into the limiting member 19, forming an accommodating space between the box-type structure and the limiting member 19. The roller 21 is installed within this accommodating space, and the rolling direction of the roller 21 is consistent with the sliding direction of the sliding safety lock 5. In this configuration, the roller 31 converts the sliding friction force during the sliding process of the sliding safety lock 5 into rolling friction force, making sliding more convenient.

[0036] The dimensions of the roller 21 are adapted to the dimensions of the accommodating space. In this case, it is possible to prevent the sliding safety lock 5 from tilting during sliding.

[0037] The dome-sealed lining structure of the hook-plate type underground rock-lined cavern also includes anchor bolts 6 and gaskets 20. Anchor bolts 6 penetrate the extension 16 and are secured with nuts, fixing the other end of the anchor bolts 6 to the surrounding rock 27. Gaskets 20 are positioned between the limiting member 19 and the nut. The inner diameter of the gasket 20 is larger than the diameter of the anchor bolt 6 but smaller than the inner diameter of the nut, and the outer diameter of the gasket 20 is larger than the outer diameter of the nut. This configuration provides a more stable connection for the anchor bolts 6.

[0038] The auxiliary components include a construction scaffold. In this case, tools used during construction can be placed in the construction scaffold, making the construction process more convenient.

[0039] Dome-sealing lining structure and construction method for hook-plate type underground rock-lined caverns See appendix Figure 13 The construction method of the dome sealing lining structure of the hook-plate type underground rock-lined cavern provided by this utility model includes the following steps: Step S1: Drill connection holes in the concrete lining layer 1. Step S2: Place the dome frame 3 and column frame 17 inside the concrete lining layer 1, and use the connecting bolts and the fixing base plate of the hook plate connector provided by the dome frame 3 and column frame 17 to connect and fix the dome frame 3 and column frame 17 to the concrete lining layer 1. Step S3: Connect the fan-shaped airtight layer 4 and the column-shaped airtight layer 18 between the dome skeleton 3 and the column skeleton 17 to obtain the dome-sealed inner lining structure of the hook-plate type underground rock-lined cavern.

[0040] The dome-sealed lining structure of the hook-plate type underground rock-lined chamber provided by this utility model does not require an integral sealed lining structure inside the concrete lining layer 1 during construction. Instead, a skeleton is first laid out inside the concrete lining layer 1, and then the airtight layer is connected between the skeletons to form the dome-sealed lining structure of the underground rock-lined chamber. Compared with the integral sealing layer, the dome-sealed lining structure of the underground rock-lined chamber is easier to install, more efficient, and cheaper.

[0041] The construction method for the dome-sealed lining structure of the hook-plate type underground rock-lined cavern also includes the following steps: Step S4: Conduct experimental gas storage inside the dome-sealed lining structure of the hook-plate type underground rock-lined cavern to determine the sealing performance and monitor possible leakage points.

[0042] In this situation, if the dome sealing lining structure of the hook-plate type underground rock-lined cavern leaks, timely repair measures can be taken.

[0043] Although preferred embodiments of the present invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of the present invention.

[0044] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A dome-sealed lining structure for a hook-plate type underground rock-lined cavern, characterized in that, The hook-plate type underground rock-lined chamber is located inside the surrounding rock (27), and a concrete lining layer (1) is provided between the hook-plate type underground rock-lined chamber and the surrounding rock (27). The dome-sealed lining structure of the hook-plate type underground rock lining chamber includes a dome frame (3), a column frame (17), a fan-ring type airtight layer (4), and a column-ring type airtight layer (18). The dome frame (3) and the column frame (17) are respectively provided with hook-plate type connectors. The columnar frame (17) is fixedly connected to the bottom of the dome frame (3) by the hook plate connector; The fan-shaped airtight layer (4) is fixedly connected to the dome frame (3) through the hook plate connector, and the column-shaped airtight layer (18) is fixedly connected to the column frame (17) through the hook plate connector, so that the fan-shaped airtight layer (4) and the column-shaped airtight layer (18) together constitute the dome sealing lining structure of the underground rock-lined cavern.

2. The dome-sealed lining structure of the hook-plate type underground rock-lined cavern according to claim 1, characterized in that, The dome frame (3) includes a spherical plate (9), an annular frame (10), multiple arc-shaped frames (11), an outer ring frame (12), an inner ring frame (13), a radial frame (14), and an annular platform (22). The inner diameter of the annular skeleton (10) is equal to the diameter of the spherical shell plate (9), and the annular skeleton (10) is fixedly disposed on the outer ring of the spherical shell plate (9). The diameter of the outer ring skeleton (12) is larger than the diameter of the inner ring skeleton (13), and the diameter of the inner ring skeleton (13) is larger than the diameter of the spherical shell plate (9). One end of the arc-shaped frame (11) is fixedly connected to the ring frame (10), and the other end of the arc-shaped frame (11) is fixedly connected to the outer ring frame (12). One end of the radial skeleton (14) is fixedly connected to the outer ring skeleton (12), and the other end of the radial skeleton (14) is fixedly connected to the inner ring skeleton (13), so that an annular band is formed between the outer ring skeleton (12) and the inner ring skeleton (13). The annular platform (22) is disposed within the annular belt, wherein the annular platform (22) is fixedly connected between the outer ring skeleton (12), the inner ring skeleton (13) and the radial skeleton (14) by a hook plate connector; One end of the columnar skeleton (17) is fixedly connected to the inner ring skeleton (13). The spherical plate (9) is used to seal the construction shaft.

3. The dome-sealed lining structure of the hook-plate type underground rock-lined cavern according to claim 2, characterized in that, The hook-plate connector includes a first hook-plate connector, a second hook-plate connector, a third hook-plate connector, a fourth hook-plate connector, and a fifth hook-plate connector. The first hook plate connector is disposed at the connection between the annular frame (10) and the fan-shaped airtight layer (4); The second hook plate connector is disposed at the connection between the arc-shaped frame (11) and the fan-shaped airtight layer (4); The third hook plate connector is located at the connection between the outer ring skeleton (12), the fan-shaped airtight layer (4), and the annular platform (22); The fourth hook plate connector is located at the connection between the annular platform (22) and the column ring airtight layer (18); The fifth hook plate connector is located at the connection between the column ring airtight layer (18) and the columnar skeleton (17).

4. The dome-sealed lining structure of the hook-plate type underground rock-lined cavern according to claim 3, characterized in that, The first hook-plate connector includes a first fixed base plate (23). The first fixed base plate (23) has a length direction and a width direction. The first fixed base plate (23) has a clamp with a semi-open accommodating space on one side along the length direction. The top edge of the clamp with the semi-open accommodating space extends inward to form a protrusion, so that a groove is formed on the inner side corresponding to the protrusion in the clamp with the semi-open accommodating space. The protrusion and the groove together form a limiting groove.

5. The dome-sealed lining structure of the hook-plate type underground rock-lined cavern according to claim 3, characterized in that, The second hook-plate connector includes a second fixed base plate (24). The second fixed base plate (24) has a length direction and a width direction. The second fixed base plate (24) forms a clamp with a semi-open accommodating space at the central axis along the length direction. The top edges on both sides of the clamp with the semi-open accommodating space extend inward to form a protrusion, so that a groove is formed on the inner side corresponding to the protrusion in the clamp with the semi-open accommodating space. The protrusion and the groove together form a limiting groove.

6. The dome-sealed lining structure of the hook-plate type underground rock-lined cavern according to claim 3, characterized in that, The fifth hook plate connector includes a fifth fixed base plate (26). The fifth fixed base plate (26) has a length direction and a width direction. The fifth fixed base plate (26) forms a clamp with a semi-open accommodating space at the central axis along the length direction. The top edges on both sides of the clamp with the semi-open accommodating space extend inward to form a protrusion, so that a groove is formed on the inner side corresponding to the protrusion in the clamp with the semi-open accommodating space. The protrusion and the groove together form a limiting groove.

7. The dome-sealed lining structure of the hook-plate type underground rock-lined cavern according to claim 3, characterized in that, The fourth hook plate connector includes a fourth fixed base plate (25). Viewed from the radial section of the fourth fixed base plate (25), the fourth fixed base plate (25) forms a clamp with a semi-open accommodating space at the axis of symmetry. The top edges on both sides of the clamp with the semi-open accommodating space extend inward to form a protrusion, so that a groove is formed on the inner side corresponding to the protrusion in the clamp with the semi-open accommodating space. The protrusion and the groove together form a limiting groove. The fourth fixed base plate (25) has a bend in the direction away from the clamp with the semi-open accommodating space, and two connecting wings are formed at the two bends of the fourth fixed base plate (25).

8. The dome-sealed lining structure of the hook-plate type underground rock-lined cavern according to claim 3, characterized in that, The third hook plate connector includes a third fixed base plate (15). Viewed from the radial section of the third fixed base plate (15), the third fixed base plate (15) forms a clamp with a semi-open accommodating space at the axis of symmetry. The top edges on both sides of the clamp with the semi-open accommodating space extend inward to form a protrusion, so that a groove is formed on the inner side corresponding to the protrusion in the clamp with the semi-open accommodating space. The protrusion and the groove together form a limiting groove. The third fixed base plate (15) has a bend in the direction of approaching the third hook plate connector, and two connecting wings are formed at the two bends of the third fixed base plate (15).

9. The dome-sealed lining structure of the hook-plate type underground rock-lined cavern according to claim 8, characterized in that, It also includes an extension (16) and a sliding safety lock (5). The extension (16) extends distally from the axis of symmetry of the third fixed base plate (15). The sliding safety latch (5) includes a first connecting part and a second connecting part. The sliding safety latch (5) is disposed on the extension (16) via the first connecting part, so that the sliding safety latch (5) can slide along the extension (16). One end of the second connecting part is fixedly connected to the first connecting part, and the other end of the second connecting part is used to connect external auxiliary components.

10. The dome-sealed lining structure of the hook-plate type underground rock-lined cavern according to claim 9, characterized in that, It also includes a limiter (19) and a roller (21). The limiting member (19) is fixedly disposed at the end of the extension (16). The first connecting part of the sliding safety lock (5) is provided with a box-type structure. The box structure is fitted with the limiting member (19) to form an accommodating space between the box structure and the limiting member (19). The roller (21) is disposed in the accommodating space, and the rolling direction of the roller (21) is consistent with the sliding direction of the sliding safety lock (5).

11. The dome-sealed lining structure of the hook-plate type underground rock-lined cavern according to claim 10, characterized in that, The outline dimensions of the roller (21) are adapted to the dimensions of the accommodating space.

12. The dome-sealed lining structure of the hook-plate type underground rock-lined cavern according to claim 10, characterized in that, The dome-sealed lining structure of the hook-plate type underground rock-lined cavern also includes anchor bolts (6) and gaskets (20). The anchor rod (6) passes through the extension (16), and the anchor rod (6) is fixed with a nut, so that the other end of the anchor rod (6) is fixed to the interior of the surrounding rock (27). The gasket (20) is disposed between the limiting member (19) and the nut, wherein the inner diameter of the gasket (20) is larger than the diameter of the anchor rod (6) but smaller than the inner diameter of the nut, and the outer diameter of the gasket (20) is larger than the outer diameter of the nut.

13. The dome-sealed lining structure of the hook-plate type underground rock-lined cavern according to claim 9, characterized in that, The auxiliary components include a construction scaffold.

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