Waterproof lining structure of double-layer shaft wall of vertical shaft

Abstract

The utility model relates to the technical field of lining structures of underground engineering, in particular to a waterproof lining structure of a double-layer shaft wall of a vertical shaft, which comprises a cylindrical outer supporting piece and a cylindrical outer supporting piece, and the cylindrical outer supporting piece comprises two arc-shaped main body supporting plates which are detachably connected. The cylindrical inner supporting piece is arranged in the cylindrical outer supporting piece, the cylindrical inner supporting piece and the cylindrical outer supporting piece form a double-layer structure, the cylindrical inner supporting piece comprises two arc-shaped prefabricated concrete main bodies which are detachably connected, a continuous joint is formed by the joint ends of the two prefabricated concrete main bodies, and the joint is filled with a cement sealing layer; a reinforcing mesh and a fixing piece are arranged between the body supporting plate and the prefabricated concrete body, one end of the fixing piece is fixedly connected with the body supporting plate, and the other end of the fixing piece is fixedly connected with the prefabricated concrete body. And the inner supporting assembly is composed of a plurality of inner supporting plates, and the inner supporting plates are attached to and supported on the inner wall of the prefabricated concrete body. The waterproof lining structure of the double-layer shaft wall of the vertical shaft is a lining structure which can be quickly assembled and is high in waterproofness.

Description

A vertical shaft double-layer waterproof lining structure Technical Field

[0001] This utility model relates to the field of underground engineering lining structure technology, and in particular to a vertical shaft double-layer waterproof lining structure. Background Technology

[0002] With the development of new energy technologies, high-pressure gaseous hydrogen storage has become one of the most commonly used hydrogen storage technologies. This technology compresses hydrogen gas into high-pressure resistant containers such as steel cylinders or hydrogen storage wells. For safety reasons, underground hydrogen storage wells have gradually become the main development direction for hydrogen storage containers.

[0003] Traditional underground hydrogen storage well construction methods typically include the following steps: burying the storage well into a pre-excavated shaft, then filling the gap between the shaft and the storage well with cement grout, and finally bonding the storage well to the shaft through the solidified cement. During shaft excavation, a lining structure needs to be installed on the inner wall of the shaft for support. Currently, the common construction method is to create molds on-site and then pour cement. The on-site pouring of the cement lining structure requires a series of tasks, including vibration compaction, which makes the construction period for the shaft lining structure quite long. Furthermore, if the existing concrete lining structure cracks locally during use, it will severely affect the waterproofing performance of the shaft, thus affecting its normal use. Summary of the Invention

[0004] The problem this utility model aims to solve is to provide a vertical shaft double-layer waterproof lining structure that can be quickly assembled and has high waterproof performance, addressing the aforementioned shortcomings. To solve the above technical problems, the technical solution proposed by this utility model is as follows:

[0005] A vertical shaft double-layer waterproof lining structure includes: a cylindrical external support component, comprising two detachably connected arc-shaped main support plates;

[0006] The cylindrical internal support is set inside the cylindrical external support and forms a double-layer structure with the cylindrical external support. It includes two detachably connected arc-shaped precast concrete bodies. The joint ends of the two precast concrete bodies form a continuous joint, which is filled with a cement sealing layer. A steel mesh and a fastener are provided between the main support plate and the precast concrete bodies. One end of the fastener is fixedly connected to the main support plate, and the other end is fixedly connected to the precast concrete bodies.

[0007] The internal support assembly consists of multiple internal support plates, which are attached to and supported on the inner wall of the precast concrete main body.

[0008] In one embodiment, one of the precast concrete bodies has a protrusion extending circumferentially along the arc surface at one end, and the other precast concrete body has a groove that matches the protrusion, with the protrusion fitting into the groove to form a continuous sealing interface.

[0009] In one embodiment, both ends of the main support plate are provided with external fixing ears with bolt holes, and the external fixing ears of the main support plate are connected by fixing bolts after being joined together.

[0010] In one embodiment, a bottom ring is provided at the bottom of the precast concrete body, and a plurality of pre-inserted rods are fixedly provided on the upper surface of the bottom ring. The precast concrete body has fixing holes that cooperate with the pre-inserted rods, and the fixing holes penetrate the precast concrete body in a vertical direction.

[0011] In one embodiment, the outer wall of the main support plate is provided with a plurality of anchor rods, and a resistance rod is connected to the end of each anchor rod.

[0012] In one embodiment, both ends of the inner support plate are provided with inner fixing ears with bolt holes, and the inner fixing ears are provided with waist grooves, the positions of which correspond to the inner fixing bolts.

[0013] In one embodiment, the waist groove is elongated.

[0014] In one embodiment, the top of the main support plate is provided with a connector, and the outer wall of the connector is provided with threads.

[0015] In one embodiment, both the main support plate and the inner support plate are steel plates.

[0016] Compared with existing technologies, the beneficial effects of this utility model are as follows: The prefabricated double-layer structure, composed of a steel main support plate and a prefabricated concrete main body, combined with an internal steel mesh, significantly improves the overall structural strength of the lining. The cylindrical inner support body, composed of multiple steel inner support plates, further enhances structural stability, and the inner support plates can be repeatedly disassembled and reused. A continuous joint is formed at the joint ends of the two prefabricated concrete main bodies, and the joint is filled with a cement sealing layer, effectively sealing and wrapping the joint area, greatly improving waterproof performance. The prefabricated assembly design reduces the amount of on-site pouring work, requiring only cement reinforcement of the connection points, significantly shortening the construction cycle and reducing labor costs. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model 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 some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 is a three-dimensional schematic diagram of a vertical shaft double-layer waterproof lining structure according to one embodiment.

[0019] Figure 2 is a top view of a vertical shaft double-wall waterproof lining structure according to one embodiment.

[0020] Figure 3 is a partially exploded schematic diagram of the double-layer waterproof lining structure of a vertical shaft according to one embodiment.

[0021] Figure 4 is a schematic diagram of a pre-insertion rod structure according to one embodiment.

[0022] Figure 5 is a schematic diagram of the internal support plate structure of one embodiment.

[0023] Figure 6 is an enlarged structural diagram of point A in Figure 5.

[0024] Reference numerals: 1. Main support plate; 2. Steel mesh; 3. Anchor rod; 4. Resistance rod; 5. Connector; 6. Fixing component; 7. Precast concrete main body; 8. Fixing hole; 9. Protrusion; 10. Groove; 11. External fixing ear; 12. Fixing bolt; 13. Inner support plate; 14. Bottom ring; 15. Pre-inserted rod; 16. Internal fixing ear; 17. Waist groove; 18. Internal fixing bolt. Detailed Implementation

[0025] To facilitate understanding of this utility model, the following description will be provided in more comprehensive and detailed manner with reference to the accompanying drawings and preferred embodiments. However, the scope of protection of this utility model is not limited to the following specific embodiments.

[0026] Unless otherwise defined, all technical terms used herein have the same meaning as commonly understood by those skilled in the art. The technical terms used herein are for the purpose of describing particular embodiments only and are not intended to limit the scope of protection of this invention.

[0027] Unless otherwise specified, all raw materials, reagents, instruments and equipment used in this invention can be purchased from the market or prepared by existing methods.

[0028] Please refer to Figures 1-6. One embodiment of the vertical shaft double-layer waterproof lining structure mainly includes: an external cylindrical support, an internal cylindrical support, and an internal support assembly. The external cylindrical support includes two detachably connected arc-shaped main support plates 1. The internal cylindrical support is located inside the external cylindrical support and forms a double-layer structure with it. It includes two detachably connected arc-shaped precast concrete bodies 7. The joint ends of the two precast concrete bodies 7 form a continuous joint, which is filled with a cement sealant layer. A steel mesh 2 and a fixing member 6 are provided between the main support plate 1 and the precast concrete body 7. One end of the fixing member 6 is welded to the main support plate 1, and the other end is fixedly connected to the steel mesh 2. Concrete is poured onto the steel mesh 2 using a mold to form the precast concrete body 7. The steel mesh 2 improves the structural strength of the precast concrete body 7, making it less prone to cracking and damage. The internal support assembly consists of multiple internal support plates 13, which are fitted and supported on the inner side of the precast concrete body 7, providing radial support.

[0029] Specifically, in one embodiment, one precast concrete body 7 has a protrusion 9 extending circumferentially along the arc surface at its end, and the other precast concrete body 7 has a groove 10 that matches the protrusion 9. When the two identical precast concrete bodies 7 are joined, the protrusion 9 fits into the groove 10 to form a continuous sealing interface. The gap of the sealing interface and the outside of the fixing bolts 12 are covered with a cement sealing layer to improve the waterproofness of the lining structure. In other embodiments, the precast concrete bodies 7 can also be joined in other ways.

[0030] Specifically, in one embodiment, both ends of the main support plate 1 are provided with external fixing ears 11 with bolt holes, and the external fixing ears 11 of the main support plate 1 are connected by fixing bolts 12 after being mated. In other embodiments, the two main support plates 1 can also be connected by plugging or other methods.

[0031] Preferably, in one embodiment, the bottom of the precast concrete body 7 is provided with a bottom ring 14, and a plurality of pre-inserted rods 15 are fixedly provided on the upper surface of the bottom ring 14. The precast concrete body 7 is provided with a plurality of fixing holes 8 that cooperate with the pre-inserted rods 15. The fixing holes 8 penetrate the precast concrete body 7 in a vertical direction, thereby improving the stability of the two precast concrete bodies 7 after being joined together.

[0032] Specifically, the outer wall of the main support plate 1 is provided with multiple anchor rods 3, and the ends of the anchor rods 3 are welded with resistance rods 4 to enhance the anchoring force between the lining structure and the stratum.

[0033] Specifically, both ends of the inner support plate 13 are provided with inner fixing ears 16 with bolt holes. The inner fixing ears 16 are provided with waist grooves 17, and the position of the waist grooves 17 corresponds to the inner fixing bolts 18. The inner fixing bolts 18 pass through the waist grooves 17, so that adjacent inner support plates 13 are movably connected. Preferably, the waist grooves 17 are elongated, so that the ends of the inner fixing bolts 18 can extend into the interior of the waist grooves 17, which is beneficial to the fastening between the inner fixing ears 16.

[0034] Preferably, in one embodiment, the top of the main support plate 1 is provided with a semi-annular connector 5, the outer wall of which is threaded. When the two main support plates 1 are connected, the two semi-annular connectors 5 are connected synchronously to form a complete annular connection structure, which facilitates the installation of the well platform or other construction equipment and assists in the subsequent excavation of the shaft.

[0035] Preferably, both the main support plate 1 and the inner support plate 13 are steel plates, and the inner support plate 13 can be repeatedly disassembled and reused, thereby improving structural strength and construction efficiency.

[0036] The above-mentioned double-layer waterproof lining structure for vertical shafts is used as follows: A semi-cylindrical double-layer structure is provided. Specifically, a precast concrete main body 7 is constructed. First, a sleeve or a hole model of a specific shape is placed inside a mold. Concrete is then poured onto the steel mesh 2 inside the main support plate 1 through the mold. After the precast concrete main body 7 is formed, it is demolded. The demolded precast concrete main body 7 and the main support plate 1 combine to form a semi-cylindrical double-layer structure. Excavation can be carried out at the predicted location using external equipment such as an excavator. Then, mortar is laid at the bottom of the excavated location. After the mortar solidifies, the bottom... Ring 14 is pre-fixed at the corresponding excavation position in the shaft. Then, pre-inserted rods 15 are inserted into the fixing holes 8 that are drilled through both ends of the precast concrete body 7. This allows for the fixed assembly of the main support plate 1, the precast concrete body 7, the bottom ring 14, and the pre-inserted rods 15. When both precast concrete bodies 7 are assembled onto the bottom ring 14 and the pre-inserted rods 15, the protrusions 9 and grooves 10 located at both ends of the two precast concrete bodies 7 are respectively fitted into each other. Next, the external fixing ears 11 located at both ends of the main support plate 1 are connected using multiple fixing bolts 12. At this point, the two semi-cylinders... A cylindrical support component, consisting of a double-layer structure, forms the lining structure inside the shaft. Multiple inner support plates 13 are assembled inside two precast concrete main bodies 7. The assembled inner support plates 13 form a complete cylindrical structure, supporting the interior of the precast concrete main bodies 7. After the inner support plates 13 are assembled, cement mortar is poured into the gap between the protrusions 9 and grooves 10, as well as onto the outside of the fixing bolts 12, forming a sealing layer. This enhances the waterproofing of the lining structure. Once the two precast concrete main bodies 7 are tightly connected, [the structure can...]. Multiple inner support plates 13 can be disassembled and reused. After two identical semi-cylindrical double-layer structures are combined to form a complete shaft internal lining structure, the gaps on the outside of the two main support plates 1 can be filled with stones first, and then the gaps between the stones can be filled with fine sand. Multiple anchor rods 3 are fixedly installed on the outside of the two main support plates 1, and resistance rods 4 are fixedly installed at the ends of the multiple anchor rods 3. The interaction between the multiple resistance rods 4 and the stones can make the shaft opening more solid and avoid collapse in the later stage.

[0037] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A vertical shaft double-layer waterproof lining structure, characterized in that, The system includes: an external cylindrical support component comprising two detachably connected arc-shaped main support plates; an internal cylindrical support component, disposed within the external cylindrical support component and forming a double-layer structure therewith, comprising two detachably connected arc-shaped precast concrete bodies, the joint ends of the two precast concrete bodies forming a continuous joint, the joint being filled with a cement sealing layer; a steel mesh and fasteners are provided between the main support plates and the precast concrete bodies, one end of the fasteners being fixedly connected to the main support plates and the other end being fixedly connected to the precast concrete bodies; and an internal support assembly composed of multiple internal support plates, which are fitted and supported against the inner wall of the precast concrete bodies.

2. The vertical shaft double-layer waterproof lining structure according to claim 1, characterized in that, One of the precast concrete bodies has a protrusion extending circumferentially along the arc surface at one end, and the other precast concrete body has a groove that matches the protrusion. The protrusion fits into the groove to form a continuous sealing interface.

3. The vertical shaft double-layer waterproof lining structure according to claim 1, characterized in that, Both ends of the main support plate are provided with external fixing ears with bolt holes. The external fixing ears of the main support plate are connected by fixing bolts after being joined together.

4. The vertical shaft double-layer waterproof lining structure according to claim 1, characterized in that, The precast concrete body has a bottom ring at the bottom, and multiple pre-inserted rods are fixed on the upper surface of the bottom ring. The precast concrete body has fixing holes that cooperate with the pre-inserted rods, and the fixing holes penetrate the precast concrete body vertically.

5. The vertical shaft double-layer waterproof lining structure according to claim 1, characterized in that, The outer wall of the main support plate is provided with multiple anchor rods, and each anchor rod is connected to a resistance rod at its end.

6. The vertical shaft double-layer waterproof lining structure according to claim 1, characterized in that, Both ends of the inner support plate are provided with inner fixing ears with bolt holes. The inner fixing ears are provided with waist grooves, and the positions of the waist grooves correspond to the inner fixing bolts.

7. A vertical shaft double-layer waterproof lining structure according to claim 6, characterized in that, The waist groove is long and narrow.

8. The vertical shaft double-layer waterproof lining structure according to claim 1, characterized in that, The top of the main support plate is provided with a connector, and the outer wall of the connector is provided with threads.

9. A vertical shaft double-layer waterproof lining structure according to claim 1, characterized in that, Both the main support plate and the inner support plate are made of steel plates.

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