Construction frame for construction of circular inner cavity gas storage in small-diameter abandoned chamber and use method thereof

Abstract

The application provides a construction frame for constructing a circular inner cavity gas storage in a small-diameter abandoned chamber and a use method, the construction frame comprises a track frame, a lining trolley mounting frame and two groups of annular support frames, the track frame comprises a track beam frame extending along the extension direction of the tunnel and first inclined support oil cylinders arranged at both ends of the track beam frame, the piston end of the first inclined support oil cylinder is provided with a clamping mechanism, the annular support frame and the lining trolley mounting frame are sleeved on the track beam frame and can move along the track beam frame, the annular support frame comprises a support frame, vertical support oil cylinders arranged at the bottom of the support frame, a plurality of second inclined support oil cylinders arranged on the outer frame surface of the support frame and a walking mechanism arranged in the inner frame of the support frame. The application is used for installing lining pieces in an abandoned city gate-shaped rock cave, provides stable support for construction, runs the lining mounting frame on the frame body for the installation of the lining pieces and arranges a horizontal transport vehicle through the middle of the frame body.

Description

Technical Field

[0001] This invention relates to a construction device for building cavern storage facilities and tunnels in abandoned mines. Specifically, it is a construction frame and method for building circular internal cavity gas storage facilities in small-diameter abandoned caverns. It is mainly used as a standard section for building circular internal cavity gas storage facilities and tunnels in abandoned city gate-shaped caverns or tunnels by means of lining plates. Background Technology

[0002] In recent decades, my country has achieved leapfrog development in mining. While supporting the country's rapid economic development, it has also left behind a large number of abandoned non-metallic mine resources. These abandoned mine resources still contain a large amount of usable resources. If they are not redeveloped, they will cause a huge waste of energy resources and also bring serious environmental and social problems. Combining prefabricated gas energy storage facilities and hydraulic tunnels with abandoned mine resources is an important measure to solve the problem of reusing non-metallic mine resources.

[0003] In the construction of prefabricated sections in abandoned mine tunnels, the limited cross-sectional dimensions typically restrict the operation of large construction machinery, making section assembly difficult. Further expanding the excavation face to accommodate the construction environment would cause even greater disturbance to the tunnel chamber, severely impacting the construction quality of subsequent energy storage facilities and tunnels. Therefore, a simple, fully automated, and easily controllable integrated construction frame is needed to improve the construction convenience and quality of small-scale lined tunnels, reduce construction difficulty, and generate significant economic and social benefits. Summary of the Invention

[0004] This invention addresses the problem of constructing compressed gas energy storage facilities in existing abandoned mine shafts by providing a construction frame and method for building circular internal cavity gas storage facilities in small-diameter abandoned mine shafts. The track frame structure is stable and can move freely within the mine shaft, facilitating the installation of a lining trolley on the track frame. A horizontal transport vehicle passes through the middle of the frame, achieving the goal of constructing a circular internal cavity gas storage facility in a small-diameter abandoned mine shaft by lining lining trolleys, effectively solving the construction space problem in small-diameter mine shafts.

[0005] To achieve the above-mentioned technical objectives, the present invention provides a construction frame for constructing a circular internal gas storage tank in a small-diameter abandoned tunnel. The construction frame includes a track frame, a circumferential support frame, and a lining installation frame. The track frame includes a track beam frame along the extension direction of the tunnel and first inclined support cylinders set at both ends of the track beam frame. The circumferential support frame and the lining installation frame are both mounted on the track beam frame.

[0006] The track beam frame is a hollow frame composed of multiple transverse track beams and frame connecting beams. The multiple transverse track beams are arranged parallel to each other along the tunnel extension direction. Each transverse track beam is equipped with a traveling track. The piston end of the first inclined support cylinder is equipped with a clamping mechanism. The first inclined support cylinder located at the end of the track frame away from the tunnel entrance is fixedly connected to the perforated support track laid on the bottom surface of the area where the lining sheet is installed in the abandoned tunnel through the clamping mechanism at the piston end. The first inclined support cylinder located at the end near the tunnel entrance is fixedly connected to the perforated base fixed in the precast trench on the bottom surface of the unconstructed area of ​​the abandoned tunnel through the clamping mechanism at the piston end.

[0007] The circumferential support frame is provided in two sets. Each set of circumferential support frame includes a support frame that is fitted around the outside of the track beam, a vertical support cylinder set at the bottom of the support frame, multiple second inclined support cylinders arranged on the outer frame of the support frame, and a traveling mechanism set in the inner frame of the support frame. The piston end of the vertical support cylinder is provided with a support seat, and the piston end of each second inclined support cylinder is provided with a support wheel set. The support frames of the two sets of circumferential support frames are respectively matched and connected to the traveling track on the transverse track beam through the first traveling mechanism.

[0008] The lining installation frame is located between two sets of circumferential support frames and includes a ring-shaped movable frame that is fitted around the track beam frame, a traveling bracket set in the inner ring of the ring-shaped movable frame, and a second traveling mechanism installed on the traveling bracket. The traveling bracket is matched and connected to the traveling track on the transverse track beam through the second traveling mechanism. The ring-shaped movable frame is provided with a track for the installation and movement of the sheet lining installation device.

[0009] The preferred technical solution of this invention is as follows: The track beam is supported by four transverse track beams, which are connected by multiple sets of frame connecting beams. Each set of frame connecting beams includes four frame connecting beams connected to two adjacent transverse track beams. Each end of the four transverse track beams is provided with a beam support, which also serves as a circumferential support frame to prevent track detachment. Two sets of first inclined support cylinders are symmetrically arranged on each beam support, each set including two first inclined support cylinders. The cylinder bodies of each set of first inclined support cylinders are hinged to different positions on the frame connecting beams, and the piston end is hinged to a double-headed connecting base. A [further details about the double-headed connecting base are missing from the original text]. The system includes a support plate, with a first pressure sensor located between the double-headed connecting base and the support plate. Alignment sensors are located on the side of the support plate corresponding to the perforated base or perforated support rail. The clamping mechanism is mounted on the support plate. Toothed rails are located on the top surface of the two transverse rail beams at the top of the track beam frame, and first arc-shaped rails are located on the side surface. Second arc-shaped rails are located on the bottom surface and side surface of the two transverse rail beams at the bottom of the track beam frame. Positioning identification blocks are located on the outer corners of the two top transverse rail beams. These positioning identification blocks are used for adaptive positioning of the circumferential support frame and lining installation frame running on the transverse rail beams.

[0010] A preferred technical solution of the present invention: The track frame further includes a horizontal transport device. The bottom of the track beam frame is provided with a support beam, and a channel plate is laid on the support beam. The horizontal transport device includes a transport track and a transport trolley. There are two channel plates, which are connected by a connecting plate at the end of the track beam frame near the opening. A ladder is also provided on the side of the track beam frame near the opening. There are two transport tracks, which are arranged between the two channel plates and rigidly connected to the top surface of the support beam. The transport trolley is arranged on the transport track, and a power box for driving steel wheels is installed at one end. The transport trolley can move freely along the transport track for transporting construction auxiliary materials, excavated soil, and construction equipment.

[0011] A preferred technical solution of the present invention: The track frame further includes a hoisting device, which includes an L-shaped track beam set on the top of the track beam frame, a longitudinal track beam with an inverted T-shaped cross-section, and a hook device. Two L-shaped track beams are provided, arranged opposite each other, and fixed to the bottom of the transverse track beam of the track beam frame. A first traveling track is provided on the L-shaped track beam. First traveling wheel sets are rigidly connected to both ends of the longitudinal track beam. The first traveling wheel sets at both ends of the longitudinal track beam are slidably connected to the first traveling track on the L-shaped track beam and can move back and forth along the L-shaped track beam. A second traveling track is provided on the longitudinal track beam. A second traveling wheel set is provided on the hook device. The hook device is slidably connected to the second traveling track through the second traveling wheel set and can move left and right along the longitudinal track beam. The L-shaped track beam extends out of the track frame near the opening, and its end is connected to the track beam frame via a tie beam.

[0012] The preferred technical solution of the present invention is as follows: The support wheel assembly includes a support frame base located at the piston end of the second inclined support cylinder and at least two support frame base wheels mounted on the support frame base. A second pressure sensor is provided at the connection between the second inclined support cylinder and the support frame base. Multiple sets of support frame tracks are correspondingly provided on the sidewalls of the area where the lining pieces are installed in the abandoned cavern and the area near the cavern entrance where no lining pieces are installed. Each second inclined support cylinder is slidably connected to the corresponding support frame track through the support frame base wheel at its piston end. Each circumferential support frame has two vertical support cylinders, which are correspondingly located at the invert arch position of the cavern lining. The number of second inclined support cylinders in each circumferential support frame is equal to or greater than the number of lining pieces in one ring of cavern lining, ensuring that each lining piece is in contact with one or more second inclined support cylinders.

[0013] The preferred technical solution of this invention is as follows: The support frame of the circumferential support frame is a square frame structure composed of two transverse connecting rods and two vertical connecting rods connected by L-shaped support ends. Two wheel grooves are provided at the inner corner of each support end. Position sensors are provided at the inner corners of the two upper support ends to identify the positioning identification block marking information on the transverse track beam to determine the position of the circumferential support frame, and to control the travel distance of the circumferential support frame by comparing the preset position with the current position. The first traveling mechanism includes two sets of main drive traveling mechanisms and two sets of driven traveling mechanisms. The two sets of main drive traveling mechanisms are symmetrically arranged at the inner corners of the two upper support ends of the support frame, and the two sets of driven traveling mechanisms are symmetrically arranged at the inner corners of the two lower support ends of the support frame. The inner corner of the support end; the main drive walking mechanism includes a support frame drive motor, a transmission gear set, a support frame drive gear, and an auxiliary wheel. The support frame drive gear and the auxiliary wheel are installed in two wheel grooves at the corresponding support end via a rotating shaft. One gear of the transmission gear set is installed on the rotating shaft of the support frame drive gear. The output shaft of the support frame drive motor is connected to the support frame drive gear via the transmission gear set. The support frame drive gear meshes with a toothed track. The auxiliary wheel is connected to the first arc-shaped track slide. The driven walking mechanism includes two support frame driven steel wheels. The two support frame driven steel wheels are respectively installed in two wheel grooves at the corresponding support end via a rotating shaft, and the support frame driven steel wheels are slidably connected to the second arc-shaped track.

[0014] The preferred technical solution of this invention: The annular moving frame includes two annular frames with smooth outer ring surfaces. A set of traveling supports and a second traveling mechanism are provided within each annular frame. The traveling supports of the two annular frames are connected as a whole by connecting rods. A toothed track is provided on the opposite surfaces of the two annular frames. The sheet lining installation device is installed between the two annular frames and moves along the toothed track under the drive of a motor. The traveling support is a square frame composed of four connecting rods connected sequentially through the ends of the frame. Position sensors are provided at the inner corners of the two upper ends of the frame to identify the positioning identification block marking information on the transverse track beam to determine the position of the annular moving frame. The travel distance of the annular moving frame is controlled by comparing a preset position with the current position. The second traveling mechanism and... The first traveling mechanism has the same structure, including two sets of main driving traveling mechanisms and two sets of driven traveling mechanisms. The two sets of main driving traveling mechanisms are symmetrically arranged at the inner corners of the two upper frame ends of the traveling support, and the two sets of driven traveling mechanisms are symmetrically arranged at the inner corners of the two lower frame ends of the traveling support. Two wheel grooves are opened at the inner corner of each frame end. The main driving traveling mechanism includes a mounting frame drive motor, a mounting frame drive gear, and an auxiliary wheel. The mounting frame drive motor is connected to the mounting frame drive gear through a transmission gear set. The driven traveling mechanism includes two mounting frame driven steel wheels. The mounting frame drive gear meshes with a toothed track, the auxiliary wheel is connected to the first arc-shaped track slide, and the mounting frame driven steel wheel is slidably connected to the second arc-shaped track.

[0015] The preferred technical solution of the present invention is as follows: The clamping mechanism includes a driving cylinder and two sets of symmetrically arranged jaws. The two sets of jaws are respectively connected to both sides of the support plate by rotating rods. One end of the driving cylinder is connected to the rotating rod of one of the jaws, and the other end is connected to the rotating rod of the other jaw. Under the action of the driving cylinder, the two sets of jaws are controlled to open or close. When the jaws near the opening are closed, they clamp the holes on the perforated base. When the jaws away from the opening are closed, they clamp the holes on the perforated support track.

[0016] The preferred technical solution of the present invention is as follows: a precast concrete block is provided in the precast trench, and the perforated base is fixed on the precast concrete block, so that the track frame maintains a stable shape during operation; the piston end of the first inclined support cylinder away from the opening end still has a support base wheel that matches and rolls with the perforated support track, and the perforated support track also serves as a temporary rigid connection compensation device for the sheet body to prevent the sheet body from shifting.

[0017] The present invention also provides a method for using the above-mentioned construction frame for constructing a circular internal gas storage tank in a small-diameter abandoned cavern, wherein the construction frame is 8-10m in length, and the specific steps of its use are as follows:

[0018] S1. Preliminary treatment of abandoned caverns: Select a gate-shaped adit in an abandoned mining area with stable geology and controllable rock mass fractures. The outer diameter of the adit is 4-8m. Level and reinforce the inner wall of the adit. After the treatment is completed, construct a rectangular prefabricated trench at the bottom of the cavern according to the length of the construction frame, and embed concrete blocks in the prefabricated trench. After the blocks have cured, install the perforated base on the top.

[0019] S2. Construction of the far end of the tunnel and the first ring of lining: Tie the steel bars of the far end of the tunnel and the first ring of lining, pour concrete and cure it to the design strength, and install the first section of perforated support track at the invert arch of the first ring of lining.

[0020] S3. Installation of the track frame: Assemble the various components of the track frame in the adit. After installation, adjust the first inclined support cylinder at the far end of the tunnel to the perforated support track, and clamp the perforated support track by the clamping mechanism at the piston end of the first inclined support cylinder at the far end of the tunnel; adjust the first inclined support cylinder near the tunnel opening to the perforated base in the nearest area, and clamp the perforated base by the clamping mechanism at the piston end of the first inclined support cylinder near the tunnel opening; two sets of circumferential support frames are located at both ends of the track frame, and the vertical support cylinders at the bottom of the two sets of reversing support frames extend and support the bottom of the tunnel to ensure its stability; the lining installation frame is located at the end of the track frame away from the tunnel opening.

[0021] S4. Start construction of lining segments: The lining segments are installed using the segment lining installation device on the lining installation frame. The segment lining installation device moves in a circle along the lining installation frame to install one ring of lining segments. After one ring of lining segments is installed, it moves along the track frame toward the adjacent opening end to install the next ring of lining segments until the installation of lining segments in the entire track frame area is completed. At this time, the lining installation frame moves to the adjacent opening end of the track frame and stops the installation process of lining segments.

[0022] S5. After the lining panels in the track frame area are installed in step S4, install the second perforated support track in the inverted arch area of ​​the installed lining panels. The second perforated support track is connected to the first perforated support track in step S2. At the same time, install the first support frame track on the side wall and top surface to ensure that each lining panel of the annular lining has at least one set of tracks, and the position of the first support frame track corresponds to the second inclined support cylinder on the circumferential support frame at the far end of the tunnel. Control the vertical support cylinder at the bottom of the circumferential support frame at the near end of the tunnel to extend and be firmly fixed to the ground. Then control the second inclined support cylinder on the circumferential support frame at the far end of the tunnel to extend and slide into contact with the corresponding first support frame track on the lining panel. Control the circumferential support frame at the far end of the tunnel to move along the track frame toward the near end of the tunnel. During the movement, the support wheel group at the piston end of the second inclined support cylinder moves along the corresponding support frame track to correct and compress the installed lining panels, thus completing the installation of the first lining panel.

[0023] S6. After the first section of lining is installed, extend the vertical support cylinder at the bottom of the circumferential support frame at the far end of the opening and fix it firmly against the ground of the lining. Loosen the clamping mechanism at the piston end of the first inclined support cylinder at the far end of the opening from the perforated support rail, and loosen the clamping mechanism at the piston end of the first inclined support cylinder at the near end of the opening from the perforated base. At the same time, control the drive motors of the two ring support frames to rotate in opposite directions. Under the transmission of gears and toothed rails, the rail frame moves horizontally to the next construction area.

[0024] S7. After the track frame is moved into place, install the second section of support track on the side wall of the cavern in the area where the track frame is located. The length of the second section of support track matches the length of the near-hole end ring support frame moving on the track frame. Control the near-hole end ring support frame to move along the track frame to the near-hole end of the track frame, and then remove the second section of support track.

[0025] S8. Repeat steps S4 and S5 to complete the installation of the second lining segment; then repeat steps S6 and S7 to move the track frame to the next construction area.

[0026] S9. Repeat step S8 until the lining of the entire cavern is completed, and then dismantle the construction scaffold.

[0027] The sheet lining installation device in this invention adopts an existing sheet lining device, and can directly use the sheet installation trolley disclosed in invention patent application number 2023109117293. This sheet installation trolley includes a traveling mechanism, a lifting mechanism, and a sheet connecting mechanism. The traveling mechanism includes a traveling frame, a driving wheel, a first drive motor, and a driven wheel. The driving wheel is a drive gear that matches the toothed track arranged on the opposite surfaces of the two annular frames. The driving wheel is mounted on the inner side of the traveling frame via a driving wheel bracket. The wheel is mounted on the outside of the traveling frame via a driven wheel frame. The distance between the driving wheel and the driven wheel matches the thickness of the annular frame of the annular moving frame. The driving wheel meshes with the toothed track, and the wheel surface of the driven wheel contacts the outer annular surface of the annular frame. The first drive motor is connected to the driving wheel via a transmission mechanism and drives the driving wheel to rotate. The driven wheel is a free roller. The traveling mechanism drives the sheet installation trolley to move in a ring along the annular moving frame. Then, the lining sheet is installed through the lifting mechanism and the sheet connecting mechanism.

[0028] The beneficial effects of this invention are:

[0029] (1) This invention is applicable to the construction of long straight assembled lining energy storage tanks, tunnels and the like in geological environments with stable geology and controllable rock mass fractures; after selecting an existing rock cave and preliminarily treating and reinforcing it, the lining layer of the main structure is assembled by using concrete masonry pieces; the lining layer can be constructed by increasing the number of intermediate standard sections through the integrated track frame provided by this invention.

[0030] (2) The integrated track frame in this invention can provide the frame body to be self-adaptive and stable in real time, self-moving and erected, and the lining installation frame running on the frame body for the installation of lining pieces. It can also provide horizontal transportation devices, adjustment devices, construction channels, etc., through the middle of the frame body. Furthermore, according to actual needs, a ring-shaped construction lifting vehicle, a ring-shaped anchor drilling machine, etc. can be added to the through area in the middle of the frame body to realize an integrated multi-purpose construction frame.

[0031] (3) In this invention, the stable self-moving erection of the frame is achieved by the construction frame and the ring support frame at both ends working together. The movement of the support frame and the track frame is achieved by the forward and reverse rotation of the motor of the toothed track on the support frame meshing with the track frame. This simplifies the equipment, makes the load transfer and conversion clear, and provides a large amount of functional expansion space by reserving the through area in the middle of the frame.

[0032] (4) The circumferential support frame of the present invention is fixed at the far end of the opening by connecting the claw with the hole of the perforated track, and at the near end of the opening by connecting the claw with the hole of the perforated base; the load-bearing stability of the circumferential support frame is achieved by using a pressure sensor to calibrate the load-bearing capacity of the support cylinder in real time to a preset value; the automatic positioning connection of the support cylinder of the circumferential support frame and the construction frame is achieved by calibrating the preset position with the alignment sensor and driving the claw with the drive motor.

[0033] (5) The present invention has a pre-set positioning block on the top of the construction track frame for automatic programmed adaptive positioning of the lining installation frame, the reserved annular construction lifting vehicle, and the annular anchor drilling rig.

[0034] (6) The present invention arranges support frame tracks and perforated support tracks on the lining already installed at the far end of the tunnel. On the one hand, it facilitates the positioning and adaptive movement of the construction frame and the ring support frame. On the other hand, it helps to fix the installed lining pieces and reduce settlement through temporary consolidation. The perforated base at the near end of the tunnel is located in the precast trench on the rock wall near the tunnel entrance. Its bottom is connected to the precast concrete block, which ensures the stability of the support of the construction frame without affecting the laying of the lining pieces. Attached Figure Description

[0035] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0036] Figure 2 This is an enlarged schematic diagram of the track frame structure near the opening of the present invention;

[0037] Figure 3 This is the invention Figure 2 Enlarged view of part A in the middle;

[0038] Figure 4 This is a detailed view of the perforated base of the present invention;

[0039] Figure 5 This is a three-dimensional view of the track frame structure at the far opening of the present invention;

[0040] Figure 6 This is the invention Figure 5 Enlarged view of part B in the middle;

[0041] Figure 7 This is an enlarged schematic diagram of the clamping mechanism in this invention;

[0042] Figure 8 This is a diagram of the connection between the annular support frame near the opening and the opening wall of the present invention;

[0043] Figure 9 This is the invention Figure 8 Enlarged view of the middle C section;

[0044] Figure 10 This is a diagram of the connection between the annular support frame at the far opening and the lining sheet of the present invention;

[0045] Figure 11 yes Figure 10 Enlarged schematic diagram of the driven walking mechanism;

[0046] Figure 12 This is an enlarged view of the connecting leg portion of the annular support frame of the present invention;

[0047] Figure 13 This is a structural diagram of the lining mounting frame of the present invention;

[0048] Figure 14 Enlarged schematic diagram of the connection between the annular support frame and the track beam frame in this invention;

[0049] Figure 15 This is an enlarged schematic diagram of the main drive walking mechanism of the first walking mechanism in this invention;

[0050] Figure 16 This is a structural diagram of the horizontal transport vehicle of the present invention;

[0051] Figure 17 This is a structural diagram of the hoisting device of the present invention;

[0052] Figure 18-21 This is a diagram showing the movement of the track frame according to the present invention.

[0053] In the diagram: 1000—track frame, 1001—transverse track beam, 1002—frame connecting beam, 1003—support beam, 1004—first arc-shaped track, 1005—toothed track, 1006—positioning identification block, 1007—beam support, 1008—first inclined support cylinder, 1009—channel plate, 1010—ladder, 1011—connecting plate, 1012—double-headed connecting base, 1013—support plate, 1014—first pressure sensor, 1015—card Claw, 1016—Drive cylinder, 1017—Base with perforation, 1018—Alignment sensor, 1019—Support base wheel, 1020—Support rail with perforation, 1021—Second arc-shaped rail, 2000—Circumferential support frame, 2001—Support end, 2002—Horizontal connecting rod, 2003—Vertical connecting rod, 2004—Support frame drive motor, 2005—Transmission gear set, 2006—Support frame drive gear, 2007—Auxiliary wheel, 2008—Second oblique... Support cylinder, 2009—Second pressure sensor, 2010—Support frame base, 2011—Support frame base wheel, 2012—Support frame track, 2013—Vertical support frame cylinder, 2014—Support frame driven steel wheel, 3000—Lining mounting frame, 3001—Annular moving frame, 3002—Connecting rod, 3003—Frame end, 3004—Lining mounting device, 3005—Mounting frame drive motor, 3006—Mounting frame drive gear, 3007—Installation... Frame driven steel wheels, 4000—horizontal transport device, 4001—transport track, 4002—transport trolley, 5000—lifting device, 5001—L-shaped track beam, 5002—tension beam, 5003—longitudinal track beam, 5004—hook device, 5005—first traveling wheel set, 5006—first traveling track, 5007—second traveling track, 5008—second traveling wheel set, 6—lining sheet, 7—rock wall, 8—precast trench, 9—precast concrete block. Detailed Implementation

[0054] The present invention will be further described below with reference to the accompanying drawings and embodiments. Figures 1 to 21 All accompanying drawings are simplified versions of embodiments and are intended only to clearly and concisely illustrate the embodiments of the present invention. The technical solutions shown in the drawings below are specific solutions of embodiments of the present invention and are not intended to limit the scope of the claimed invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0055] In the description of this invention, it should be understood that the terms "upper," "lower," "inner," "outer," "left," "right," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the invention is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are only used to facilitate the description of this invention and to simplify the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0056] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, terms such as "set" and "connection" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0057] The embodiment provides a construction frame for building a circular internal gas storage tank inside a small-diameter abandoned cavern, such as... Figure 1 As shown, the construction frame includes a track frame 1000, a circumferential support frame 2000, and a lining installation frame 3000. The track frame includes a track beam frame along the tunnel extension direction and first inclined support cylinders 1008 disposed at both ends of the track beam frame. The circumferential support frame 2000 and the lining installation frame 3000 are both mounted on the track beam frame. Figure 2 As shown, the track beam is a hollow frame consisting of four transverse track beams 1001 and multiple sets of frame connecting beams 1002. The four transverse track beams 1001 are arranged parallel to each other along the tunnel extension direction and are connected by multiple sets of frame connecting beams 1002. Each set of frame connecting beams 1002 includes four frame connecting beams 1002 connected to two adjacent transverse track beams 1001. Beam supports 1007 are provided at both ends of the four transverse track beams 1001. The beam supports 1007 also serve as anti-derailment blocks for the circumferential support frame 2000. Two sets of first inclined support cylinders 1008 are symmetrically arranged on each beam support 1007. Each set includes two first inclined support cylinders 1008. The four first inclined support cylinders 1008 are hinged to the four corners of the beam support 1007. The piston ends of the two first inclined support cylinders 1008 in the same set are hinged to the double-headed connecting base 1012. Figures 3 to 7As shown, a support plate 1013 is provided at the bottom of the double-headed connecting base 1012, and a clamping mechanism is provided on the support plate 1013. The clamping mechanism includes a drive cylinder 1016 and two sets of symmetrically arranged claws 1015. The two sets of claws 1015 are respectively connected to both sides of the support plate 1013 through rotating rods. One end of the drive cylinder 1016 is connected to the rotating rod of one of the claws, and the other end is connected to the rotating rod of the other claw 1015. Under the action of the drive cylinder 1016, the two sets of claws 1015 are controlled to open or close. When the claw 1015 near the opening is closed, it clamps the hole on the perforated base 1017. When the claw 1015 away from the opening is closed, it clamps the hole on the perforated support rail 1020. The first inclined support cylinder 1008, located at the end of the track frame furthest from the tunnel opening, is fixedly connected to the perforated support rail 1020, which is laid on the bottom surface of the area where the lining sheet 6 is installed in the abandoned tunnel, via a clamping mechanism at its piston end. The first inclined support cylinder 1008, located near the tunnel opening, is fixedly connected to the perforated base 1017, which is fixed in the precast trench 8 on the bottom surface of the unconstructed area of ​​the abandoned tunnel, via a clamping mechanism at its piston end. The precast trench 8 contains precast concrete blocks 9, and the perforated base 1017 is fixed on the precast concrete blocks 9, thereby ensuring the stability of the track frame 1000 during operation. The piston end of the first inclined support cylinder 1008 furthest from the tunnel opening also has a support base wheel 1019 that rolls in conjunction with the perforated support rail 1020. The perforated support rail 1020 also serves as a temporary rigid connection compensation device for the sheet, preventing the sheet from shifting.

[0058] The embodiment provides a construction frame for building a circular internal gas storage tank inside a small-diameter abandoned cavern, such as... Figure 1 and Figure 2 As shown, toothed tracks 1005 are provided on the top surface of the two transverse track beams at the top of the track beam frame, and first arc-shaped tracks 1004 are provided on the side surface. Second arc-shaped tracks 1021 are provided on the bottom surface and side surface of the two transverse track beams at the bottom of the track beam frame. The circumferential support frame 2000 has two sets. Each set of circumferential support frame 2000 includes a support frame fitted around the track beam frame, a vertical support cylinder 2013 located at the bottom of the support frame, multiple second inclined support cylinders 2008 arranged on the outer frame of the support frame, and a traveling mechanism located on the inner frame of the support frame. The piston end of the vertical support cylinder 2013 is provided with a support seat, and the piston end of each second inclined support cylinder 2008 is provided with a support wheel assembly. The support frames of the two sets of circumferential support frames 2000 are respectively connected to the traveling tracks on the transverse track beams 1001 through the first traveling mechanism. Figure 12As shown, the support wheel assembly includes a support frame base 2010 located at the piston end of the second inclined support cylinder 2008 and at least two support frame base wheels 2011 mounted on the support frame base 2010. A second pressure sensor 2009 is provided at the connection between the second inclined support cylinder 200 and the support frame base 2010. Multiple sets of support frame tracks 2012 are correspondingly provided on the sidewalls of the area where the lining sheet 6 is installed in the abandoned cavern and the area near the cavern entrance where the lining sheet is not installed, such as... Figure 8 and Figure 10 As shown, each second inclined support cylinder 2008 is slidably connected to the corresponding support frame track 2012 via the support frame base wheel 2011 at its piston end; each group of circumferential support frames 2000 is provided with two vertical support cylinders 2013, which are respectively set at the invert arch position of the tunnel lining. The number of second inclined support cylinders 2008 in each group of circumferential support frames 2000 is equal to or greater than the number of lining pieces 6 of one ring of tunnel lining, ensuring that each lining piece 6 is in contact with one or more second inclined support cylinders 2008.

[0059] The embodiment provides a construction frame for building a circular internal gas storage tank inside a small-diameter abandoned cavern, such as... Figures 8 to 15As shown, the support frame of the circumferential support frame 2000 is a square frame structure composed of two transverse connecting rods 2002 and two vertical connecting rods 2003 connected by L-shaped support ends 2001. Two wheel grooves are provided at the inner corner of each support end 2001. Position sensors are provided at the inner corners of the two upper support ends 2001 to identify the positioning identification block 1006 marking information on the transverse track beam to determine the position of the circumferential support frame 2000. The travel distance of the circumferential support frame 2000 is controlled by comparing a preset position with the current position. The first traveling mechanism includes two sets of main drive traveling mechanisms and two sets of driven traveling mechanisms. The two sets of main drive traveling mechanisms are symmetrically arranged at the inner corners of the two upper support ends 2001 of the support frame, and the two sets of driven traveling mechanisms are symmetrically arranged at the inner corners of the two lower support ends 2001 of the support frame. The main drive traveling mechanism includes a support frame. The system comprises a drive motor 2004, a transmission gear set 2005, a support frame drive gear 2006, and an auxiliary wheel 2007. The support frame drive gear 2006 and the auxiliary wheel 2007 are mounted in two grooves on the corresponding support end 2001 via a rotating shaft. One gear of the transmission gear set 2005 is mounted on the rotating shaft of the support frame drive gear 2006. The output shaft of the support frame drive motor 2004 is connected to the support frame drive gear 2006 via the transmission gear set 2005. The support frame drive gear 2006 meshes with a toothed track 1005. The auxiliary wheel 2007 is connected to the slide rail of the first arc-shaped track 1004. The driven walking mechanism includes two support frame driven steel wheels 2014, which are mounted in two grooves on the corresponding support end 2001 via rotating shafts, and are slidably connected to the second arc-shaped track 1021.

[0060] The embodiment provides a construction frame for building a circular internal gas storage tank inside a small-diameter abandoned cavern, such as... Figure 1 and Figure 13As shown, the lining mounting frame 3000 is located between two sets of circumferential support frames 2000. The lining mounting frame 3000 includes a ring-shaped movable frame 3001 that is fitted around the track beam frame, a traveling bracket set in the inner ring of the ring-shaped movable frame 3001, and a second traveling mechanism mounted on the traveling bracket. The traveling bracket is matched and connected to the traveling track on the transverse track beam 1001 through the second traveling mechanism. The ring-shaped movable frame 3001 is provided with a track for the installation and travel of the sheet lining mounting device 3004. The annular moving frame 3001 includes two annular frames with smooth outer ring surfaces. Each annular frame contains a set of traveling supports and a second traveling mechanism. The traveling supports of the two annular frames are connected as a whole by connecting rods. A toothed track is provided on the opposite surfaces of the two annular frames. The sheet lining installation device 3004 is installed between the two annular frames and moves along the toothed track under the drive of a motor. The traveling support is a square frame composed of four connecting rods 3002 connected sequentially through frame end 3003s. Position sensors are provided at the inner corners of the two upper frame end 3003s to identify the positioning identification block 1006 marking information on the transverse track beam to determine the position of the annular moving frame 3001. The travel distance of the annular moving frame 3001 is controlled by comparing a preset position with the current position. The second traveling mechanism has the same structure as the first traveling mechanism, including two main... The system includes a drive mechanism and two sets of driven mechanisms. The two sets of main drive mechanisms are symmetrically arranged at the inner corners of the two upper frame ends 3003 of the walking support, and the two sets of driven mechanisms are symmetrically arranged at the inner corners of the two lower frame ends 3003 of the walking support. Two wheel grooves are provided at the inner corner of each frame end 3003. The main drive mechanism includes a mounting frame drive motor 3005, a mounting frame drive gear 3006, and an auxiliary wheel. The mounting frame drive motor (3005) is connected to the mounting frame drive gear 3006 through a transmission gear set. The driven mechanism includes two mounting frame driven steel wheels 3007. The mounting frame drive gear 3006 meshes with a toothed track 1005, the auxiliary wheel is connected to the slide rail of the first arc track 1004, and the mounting frame driven steel wheels 3007 are slidably connected to the second arc track 1021.

[0061] The embodiment provides a construction frame for building a circular internal gas storage tank inside a small-diameter abandoned cavern, such as... Figures 5 to 10 , Figure 16As shown, the track frame also includes a horizontal transport device 4000. A support beam 1003 is provided at the bottom of the track beam frame, and a passageway 1009 is laid on the support beam 1003. The horizontal transport device 4000 includes a transport track 4001 and a transport trolley 4002. Two passageway 1009s are provided, connected by a connecting plate 1011 at the near-opening end of the track beam frame. A ladder 1010 is also provided on the side of the near-opening end of the track beam frame, allowing construction personnel to pass. The connecting plate 1011 is used to hang external construction slabs. Two transport tracks 4001 are provided, arranged between the two passageway 1009s and rigidly connected to the top surface of the support beam 1003. The transport trolley 4002 is arranged on the transport track 4001, with a power box installed at one end to drive the steel wheels. The transport trolley 4002 can move freely along the transport track 4001 for transporting construction materials, excavated soil, and construction equipment.

[0062] The embodiment provides a construction frame for building a circular internal gas storage tank inside a small-diameter abandoned cavern, such as... Figure 1 , Figure 8 , Figure 10 and Figure 17 As shown, the track frame also includes a hoisting device 5000. The hoisting device 5000 includes an L-shaped track beam 5001 mounted on top of the track beam frame, a longitudinal track beam 5003 with an inverted T-shaped cross-section, and a hook device 5004. Two L-shaped track beams 5001 are provided, arranged opposite each other, and fixed to the bottom of the transverse track beam 1001 of the track beam frame. A first traveling track 5006 is provided on the L-shaped track beam 5001. First traveling wheel sets 5005 are rigidly connected to both ends of the longitudinal track beam 5003. The wheel set 5005 is slidably connected to the first travel track 5006 on the L-shaped track beam 5001 and can move back and forth along the L-shaped track beam 5001; a second travel track 5007 is provided on the longitudinal track beam 5003, and a second travel wheel set 5008 is provided on the hook device 5004. The hook device 5004 is slidably connected to the second travel track 5007 through the second travel wheel set 5008 and can move left and right along the longitudinal track beam 5003; the L-shaped track beam 5001 extends the track frame at the end near the opening, and the end is connected to the track beam frame through the tie beam 5002.

[0063] In one embodiment, a construction frame for constructing a circular internal gas storage tank in a small-diameter abandoned cavern is provided. A first pressure sensor 1014 is provided between the double-headed connecting base 1012 and the support plate 1013. Alignment sensors 1018 are provided on the side of the support plate 1013 and on the perforated base 1017 or the perforated support rail 1020. Positioning identification blocks 1006 are provided on the outer corners of the two transverse track beams at the top. The positioning identification blocks 1006 are used for adaptive positioning of the circumferential support frame 2000 and the lining installation frame 3000 running on the transverse track beam 1001.

[0064] In this embodiment, the movement of the circumferential support frame 2000 is achieved by the support frame drive motor 2004 driving the transmission gear set 2005. The transmission gear set 2005 has at least two meshing transmission gears, one of which is installed on the output shaft of the support frame drive motor 2004, and the other is installed on the rotating shaft of the support frame drive gear 2006. The support frame drive motor 2004 drives the transmission gear on its output shaft to rotate, thereby driving the transmission gear on the rotating shaft of the support frame drive gear 2006 to rotate. This causes the support frame drive gear 2006 to move along the gear track 1005. At the same time, the auxiliary wheel 2007 can move along the first arc track 1004, and the support frame driven steel wheels 2014 of the two sets of driven walking mechanisms at the bottom move along the corresponding second arc track 1021, thus achieving the purpose of the circumferential support frame 2000 moving along the track beam. Similarly, the movement of the lining mounting frame 3000 is similar to that of the circumferential support frame 2000. A transmission gear is installed on the output shaft of the mounting frame drive motor 3005, and another transmission gear is installed on the rotating shaft of the mounting frame drive gear 3006. The two transmission gears mesh with each other, and the mounting frame drive motor 3005 and the transmission gear set drive the mounting frame drive gear 3006 to move along the gear track 1005. At the same time, the auxiliary wheels on the lining mounting frame 3000 can move along the first arc track 1004, and the driven steel wheels 3007 of the two sets of driven walking mechanisms at the bottom move along the corresponding second arc track 1021, thus achieving the purpose of moving the lining mounting frame 3000 along the track beam frame.

[0065] In the specific installation process of this invention, the permanent and variable loads of the construction frame and the loads to be distributed to each support cylinder can be calculated in advance to determine the initial preset values. By connecting to the computer control alignment sensor 1018, the claws of all support frames are adjusted to clamp the support frame track. Then, by reading the value of the pressure sensor on the support frame in real time, the pressure value of the hydraulic cylinder piston head is adjusted to the initial preset value in real time. During the operation of the construction frame, the computer control terminal suppresses the change of the frame posture in real time, thereby ensuring the stability of the entire construction frame.

[0066] This embodiment provides a method for using a construction frame for building a circular internal gas storage tank inside a small-diameter abandoned cavern. The construction frame is 8-10m long, and the specific steps of its use are as follows:

[0067] S1. Preliminary treatment of abandoned caverns: Select a gate-shaped adit in an abandoned mining area with stable geology and controllable rock mass fractures. The outer diameter of the adit is 4-8m. Level and reinforce the inner wall of the adit. After the treatment is completed, construct a rectangular prefabricated trench at the bottom of the cavern according to the length of the construction frame, and embed concrete blocks in the prefabricated trench. After the blocks have cured, install the perforated base on the top.

[0068] S2. Construction of the far end of the tunnel and the first ring of lining: Tie the steel bars of the far end of the tunnel and the first ring of lining, pour concrete and cure it to the design strength, and install the first section of perforated support track at the invert arch of the first ring of lining.

[0069] S3. Installation of the track frame: Assemble the various components of the track frame in the adit. After installation, adjust the first inclined support cylinder at the far end of the tunnel to the perforated support track, and clamp the perforated support track by the clamping mechanism at the piston end of the first inclined support cylinder at the far end of the tunnel; adjust the first inclined support cylinder near the tunnel opening to the perforated base in the nearest area, and clamp the perforated base by the clamping mechanism at the piston end of the first inclined support cylinder near the tunnel opening; two sets of circumferential support frames 2000 are located at both ends of the track frame 1000, and the vertical support cylinders at the bottom of the two sets of reversing support frames 2000 extend and support the bottom of the tunnel to ensure its stability; the lining installation frame 3000 is located at the end of the track frame 1000 away from the tunnel opening.

[0070] S4. Start construction of lining segments: The lining segments are installed using the segment lining installation device 3004 on the lining installation frame 3000. The segment lining installation device 3004 moves in a circle along the lining installation frame 3000 to install one ring of lining segments. After one ring of lining segments is installed, it moves along the track frame 1000 toward the adjacent opening end to install the next ring of lining segments until the installation of lining segments in the entire track frame 1000 area is completed. At this time, the lining installation frame 3000 moves to the adjacent opening end of the track frame 1000 and stops the installation process of the lining segments.

[0071] S5. After the lining sections in area 1000 of the track frame are installed in step S4, install the second perforated support track in the inverted arch area of ​​the installed lining sections. The second perforated support track is connected to the first perforated support track in step S2. At the same time, install the first support frame track on the side wall and top surface to ensure that each lining section of the annular lining has at least one set of tracks, and the position of the first support frame track corresponds to the second inclined support cylinder 2008 on the circumferential support frame at the far end of the tunnel; control the circumferential support at the near end of the tunnel. The vertical support cylinder 2013 at the bottom of the support frame extends and is fixed to the ground. Then, the second inclined support cylinder 2008 on the circumferential support frame at the far end of the tunnel is extended and slides into contact with the corresponding first section of the support frame track on the lining sheet. The circumferential support frame at the far end of the tunnel moves along the track towards the near end of the tunnel. During the movement, the support wheel group at the piston end of the second inclined support cylinder moves along the corresponding support frame track to correct and compress the installed lining sheet, thus completing the installation of the first section of the lining sheet.

[0072] S6. After the first section of lining is installed, extend the vertical support cylinder 2013 at the far end of the circumferential support frame to the bottom of the lining and fix it firmly against the ground. Release the clamping mechanism at the piston end of the first inclined support cylinder 1008 at the far end of the lining and the perforated support rail. Release the clamping mechanism at the piston end of the first inclined support cylinder 1008 at the near end of the lining and the perforated base. At the same time, control the drive motors of the two ring support frames to rotate in opposite directions. Under the transmission of gears and toothed rails, the rail frame moves horizontally to the next construction area.

[0073] S7. After the track frame is moved into place, install the second section of support track on the side wall of the cavern in the area where the track frame is located. The length of the second section of support track matches the length of the near-hole end ring support frame moving on the track frame. Control the near-hole end ring support frame to move along the track frame to the near-hole end of the track frame, and then remove the second section of support track.

[0074] S8. Repeat steps S4 and S5 to complete the installation of the second lining segment; then repeat steps S6 and S7 to move the track frame to the next construction area.

[0075] S9. Repeat step S8 until the lining of the entire cavern is completed, and then dismantle the construction scaffold.

[0076] The track frame in this embodiment can also be moved via a computer controller. When a support frame movement command is initiated at the computer control terminal, the integrated track frame will move to the next track segment area according to a preset program. The specific program is as follows:

[0077] (1) Under the full control of the computer control terminal, the unloaded lining installation frame moves to the position of the circumferential support frame near the tunnel entrance. Under the drive of the drive motor, the clamping connection between the claws of the circumferential support frame at the far tunnel entrance and the track is released. The load-bearing capacity of the inclined support cylinder of the track frame is maintained at the preset value in real time using a pressure sensor. After the circumferential support frame at the far tunnel entrance retracts the vertical support cylinder, it moves to the next preset support frame track support point under the drive of the drive motor (position positioning is completed using an alignment sensor). The vertical support cylinder is released to the ground, the clamping connection between the claws and the track is controlled, and the load-bearing capacity of the circumferential support frame at the far tunnel entrance is adjusted to reach the preset value.

[0078] (2) Under the full control of the computer control terminal, the clamping connection between the claws of the inclined support cylinders at the far and near opening ends of the track frame and the track is released. The support base wheel of the inclined support cylinder at the far opening end is pressed against the perforated support track, and the inclined support cylinder at the near opening end retracts and lifts. The drive motors of the circumferential support frames at the near and far opening ends rotate synchronously in opposite directions, driving the track frame to move to the next preset position near the opening end. At the same time, the lining mounting frame on the track frame rotates synchronously in opposite directions. The alignment sensors located on the side of the support feet automatically adjust the inclined support cylinders at both ends of the track frame to align with the preset claw connection hole positions, adjust the claws to clamp the perforated support track and the reserved holes on the perforated base, and use pressure sensors to adjust the inclined support cylinders at both ends in real time to achieve the preset load value.

[0079] (3) Under the full control of the computer control terminal, referring to step (1), the clamping connection between the circumferential support frame claw near the tunnel entrance and the perforated track is released under the drive of the drive motor, and the vertical support frame cylinder is retracted. Under the drive of the drive motor, it moves to the next preset support frame track support point (position positioning is completed by using an alignment sensor), releases the vertical support frame cylinder to the ground, controls the clamping connection between the claw and the perforated track, and adjusts the bearing capacity of the circumferential support frame near the tunnel entrance to reach the preset value.

[0080] The embodiments of the present invention have been described above with reference to the accompanying drawings. However, the present invention 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 the present invention without departing from the spirit and scope of the claims. All of these forms are within the protection scope of the present invention.

Claims

1. A construction frame for building a circular internal gas storage tank in a small-diameter abandoned cavern, characterized in that: The construction frame includes a track frame (1000), a circumferential support frame (2000), and a lining installation frame (3000). The track frame includes a track beam frame along the tunnel extension direction and first inclined support cylinders (1008) set at both ends of the track beam frame. The circumferential support frame (2000) and the lining installation frame (3000) are both mounted on the track beam frame. The track beam frame is a hollow frame composed of multiple transverse track beams (1001) and frame connecting beams (1002). The multiple transverse track beams (1001) are arranged parallel to each other along the tunnel extension direction. Each transverse track beam (1001) is provided with a travel track. The piston end of the first inclined support cylinder (1008) is provided with a clamping mechanism. The first inclined support cylinder (1008) located at the end of the track frame away from the tunnel entrance is fixedly connected to the perforated support track (1020) laid on the bottom surface of the area where the lining sheet (6) is installed in the abandoned tunnel through the clamping mechanism at the piston end. The first inclined support cylinder (1008) located near the tunnel entrance is fixedly connected to the perforated base (1017) fixed in the precast trench (8) on the bottom surface of the unconstructed area of ​​the abandoned tunnel through the clamping mechanism at the piston end. The circumferential support frame (2000) is provided in two sets. Each set of circumferential support frame (2000) includes a support frame that is fitted around the track beam, a vertical support cylinder (2013) set at the bottom of the support frame, a plurality of second oblique support cylinders (2008) arranged on the outer frame of the support frame, and a traveling mechanism set in the inner frame of the support frame. The piston end of the vertical support cylinder (2013) is provided with a support seat, and the piston end of each second oblique support cylinder (2008) is provided with a support wheel set. The support frames of the two sets of circumferential support frames (2000) are respectively matched and connected to the traveling track on the transverse track beam (1001) through the first traveling mechanism. The lining installation frame (3000) is located between two sets of circumferential support frames (2000), including a ring-shaped movable frame (3001) fitted around the track beam frame, a traveling bracket set in the inner ring of the ring-shaped movable frame (3001), and a second traveling mechanism mounted on the traveling bracket. The traveling bracket is matched and connected to the traveling track on the transverse track beam (1001) through the second traveling mechanism. The ring-shaped movable frame (3001) is provided with a track for the installation and travel of the sheet lining installation device (3004).

2. The construction frame for constructing a circular internal gas storage tank in a small-diameter abandoned cave as described in claim 1, characterized in that: The track beam is supported by four transverse track beams (1001). The four transverse track beams (1001) are connected by multiple sets of frame connecting beams (1002). Each set of frame connecting beams (1002) includes four frame connecting beams (1002) connected to two adjacent transverse track beams (1001). The two ends of the four transverse track beams (1001) are respectively provided with beam supports (1007), and the beam supports (1007) also serve as circumferential supports. The support frame (2000) has anti-derailment rail stops; each beam support (1007) is symmetrically provided with two sets of first inclined support cylinders (1008), each set including two first inclined support cylinders (1008), the cylinder body of each set of first inclined support cylinders (1008) is hinged to different positions of the frame connecting beam (1002), the piston end is hinged to the double-headed connecting base (1012), and a support plate is provided at the bottom of the double-headed connecting base (1012). 1013), a first pressure sensor (1014) is provided between the double-headed connecting base (1012) and the support plate (1013), and an alignment sensor (1018) is provided on the side of the support plate (1013) and on the perforated base (1017) or the perforated support rail (1020). The clamping mechanism is installed on the support plate (1013). A toothed rail (1005) is provided on the top surface of the two transverse rail beams at the top of the rail beam frame, and a first arc-shaped rail (1004) is provided on the side. A second arc-shaped rail (1021) is provided on the bottom surface and side surface of the two transverse rail beams at the bottom of the rail beam frame. A positioning identification block (1006) is provided on the side of the outer corner of the two transverse rail beams at the top. The positioning identification block (1006) is used for adaptive positioning of the circumferential support frame (2000) and the lining installation frame (3000) running on the transverse rail beam (1001).

3. A construction frame for constructing a circular internal gas storage tank in a small-diameter abandoned cavern, as described in claim 1 or 2, characterized in that: The track frame also includes a horizontal transport device (4000). A support beam (1003) is provided at the bottom of the track beam frame, and a channel plate (1009) is laid on the support beam (1003). The horizontal transport device (4000) includes a transport track (4001) and a transport trolley (4002). Two channel plates (1009) are provided, and the two channel plates (1009) are connected by a connecting plate (1011) at the near-opening end of the track beam frame. A ladder (1010) is also provided on the side near the entrance of the tunnel. Two transport tracks (4001) are provided, which are arranged between the two channel plates (1009) and rigidly connected to the top surface of the support beam (1003). The transport trolley (4002) is arranged on the transport track (4001), and a power box for driving steel wheels is installed at one end. The transport trolley (4002) can move freely along the transport track (4001) for transporting construction auxiliary materials, excavated soil and construction equipment.

4. A construction frame for constructing a circular internal gas storage tank in a small-diameter abandoned cavern, as described in claim 1 or 2, characterized in that: The track frame also includes a hoisting device (5000), which includes an L-shaped track beam (5001) mounted on top of the track beam frame, a longitudinal track beam (5003) with an inverted T-shaped cross-section, and a hook device (5004). Two L-shaped track beams (5001) are provided, arranged opposite each other, and fixed to the bottom of the transverse track beam (1001) of the track beam frame. A first traveling track (5006) is provided on the L-shaped track beam (5001). First traveling wheel sets (5005) are rigidly connected to both ends of the longitudinal track beam (5003). The first traveling wheel sets (5005) at both ends of the longitudinal track beam (5003)... The hook device (5005) is slidably connected to the first traveling track (5006) on the L-shaped track beam (5001) and can move back and forth along the L-shaped track beam (5001); a second traveling track (5007) is provided on the longitudinal track beam (5003), and a second traveling wheel set (5008) is provided on the hook device (5004). The hook device (5004) is slidably connected to the second traveling track (5007) through the second traveling wheel set (5008) and can move left and right along the longitudinal track beam (5003); the L-shaped track beam (5001) extends the track frame at the end near the opening, and the end is connected to the track beam frame through the tie beam (5002).

5. A construction frame for constructing a circular internal gas storage tank in a small-diameter abandoned cave as described in claim 1 or 2, characterized in that: The support wheel assembly includes a support frame base (2010) located at the piston end of the second inclined support cylinder (2008) and at least two support frame base wheels (2011) mounted on the support frame base (2010). A second pressure sensor (2009) is provided at the connection between the second inclined support cylinder (2008) and the support frame base (2010). Multiple sets of support frame tracks (2012) are provided on the sidewalls of the area where the lining sheet (6) is installed in the abandoned cavern and the area near the cavern entrance where the lining sheet is not installed. Each second inclined support cylinder (2008) has a support frame base (2010) mounted on the piston end of the second inclined support cylinder (2008). 8) The support frame base wheel (2011) at its piston end is slidably connected to the corresponding support frame track (2012); each group of circumferential support frames (2000) is provided with two vertical support cylinders (2013), and the two vertical support cylinders (2013) are respectively set at the invert arch position of the cave lining. The number of second inclined support cylinders (2008) of each group of circumferential support frames (2000) is equal to or greater than the number of lining pieces (6) of a circle of cave lining, ensuring that each lining piece (6) is in contact with one or more second inclined support cylinders (2008).

6. The construction frame for building a circular internal gas storage tank in a small-diameter abandoned cave as described in claim 2, characterized in that: The circumferential support frame (2000) is a square frame structure composed of two transverse connecting rods (2002) and two vertical connecting rods (2003) connected by L-shaped support ends (2001). Two wheel grooves are provided at the inner corner of each support end (2001). Position sensors are provided at the inner corners of the two upper support ends (2001) to identify the positioning identification block (1006) marking information on the transverse track beam to determine the circumferential support frame (2000). The position is controlled by comparing the preset position with the current position to control the travel distance of the circumferential support frame (2000); the first traveling mechanism includes two sets of main driving traveling mechanisms and two sets of driven traveling mechanisms. The two sets of main driving traveling mechanisms are symmetrically arranged at the inner corners of the two support ends (2001) at the upper part of the support frame, and the two sets of driven traveling mechanisms are symmetrically arranged at the inner corners of the two support ends (2001) at the lower part of the support frame; the main driving traveling mechanism includes a support frame drive motor (2004), a transmission gear set (2005), a support frame drive gear (2006), and an auxiliary wheel (2007). The support frame drive gear (2006) and the auxiliary wheel (2007) are installed in the two wheel grooves of the corresponding support ends (2001) through a rotating shaft. One of the gears of the transmission gear set (2005) is installed on the rotating shaft of the support frame drive gear (2006). The output shaft of the support frame drive motor (2004) is connected to the support frame drive gear (2006) through the transmission gear set (2005). The transmission connection is as follows: the support frame drive gear (2006) meshes with the toothed track (1005); the auxiliary wheel (2007) is connected to the first arc track (1004) slide rail; the driven walking mechanism includes two support frame driven steel wheels (2014), which are respectively installed in the two wheel grooves of the corresponding support end (2001) through a rotating shaft, and the support frame driven steel wheels (2014) are slidably connected to the second arc track (1021).

7. The construction frame for constructing a circular internal gas storage tank in a small-diameter abandoned cave as described in claim 2, characterized in that: The annular moving frame (3001) includes two annular frames with smooth outer ring surfaces. Each annular frame contains a set of walking supports and a second walking mechanism. The walking supports of the two annular frames are connected as a whole by connecting rods. A toothed track is provided on the opposite surfaces of the two annular frames. The sheet lining installation device (3004) is installed between the two annular frames and moves along the toothed track under the drive of a motor. The walking support is a square frame composed of four connecting rods (3002) connected sequentially through frame ends (3003). Position sensors are provided at the inner corners of the two upper frame ends (3003) to identify the positioning identification block (1006) marking information on the transverse track beam to determine the position of the annular moving frame (3001) and control the travel distance of the annular moving frame (3001) by comparing the preset position with the current position. The second walking mechanism has the same structure as the first walking mechanism, including two sets of main drive mechanisms. The system includes a main drive walking mechanism and two sets of driven walking mechanisms. The two sets of main drive walking mechanisms are symmetrically arranged at the inner corners of the two upper frame ends (3003) of the walking support, and the two sets of driven walking mechanisms are symmetrically arranged at the inner corners of the two lower frame ends (3003) of the walking support. Two wheel grooves are provided at the inner corner of each frame end (3003). The main drive walking mechanism includes a mounting frame drive motor (3005), a mounting frame drive gear (3006), and an auxiliary wheel. The mounting frame drive motor (3005) is connected to the mounting frame drive gear (3006) through a transmission gear set. The driven walking mechanism includes two mounting frame driven steel wheels (3007). The mounting frame drive gear (3006) meshes with a toothed track (1005). The auxiliary wheel is connected to the first arc-shaped track (1004) slide rail. The mounting frame driven steel wheel (3007) is slidably connected to the second arc-shaped track (1021).

8. The construction frame for constructing a circular internal gas storage tank in a small-diameter abandoned cave as described in claim 2, characterized in that: The clamping mechanism includes a drive cylinder (1016) and two sets of symmetrically arranged jaws (1015). The two sets of jaws (1015) are connected to both sides of the support plate (1013) by rotating rods. One end of the drive cylinder (1016) is connected to the rotating rod of one of the jaws, and the other end is connected to the rotating rod of the other jaw (1015). Under the action of the drive cylinder (1016), the two sets of jaws (1015) are controlled to open or close. When the jaw (1015) near the opening is closed, it clamps the hole on the perforated base (1017). When the jaw (1015) away from the opening is closed, it clamps the hole on the perforated support rail (1020).

9. A construction frame for constructing a circular internal gas storage tank in a small-diameter abandoned cave as described in claim 2, characterized in that: The precast trench (8) contains a precast concrete block (9), and the perforated base (1017) is fixed on the precast concrete block (9), so that the track frame (1000) maintains a stable shape during operation; the piston end of the first inclined support cylinder (1008) away from the opening end still has a support base wheel (1019) that matches and rolls with the perforated support track (1020). The perforated support track (1020) also serves as a temporary rigid connection compensation device for the sheet body to prevent the sheet body from shifting.

10. A method of using the construction frame for constructing a circular internal gas storage tank in a small-diameter abandoned cave as described in any one of claims 2 to 9, characterized in that, The construction scaffold is 8-10m in length, and its usage steps are as follows: S1. Preliminary treatment of abandoned caverns: Select a gate-shaped adit in an abandoned mining area with stable geology and controllable rock mass fractures. The outer diameter of the adit is 4-8m. Level and reinforce the inner wall of the adit. After the treatment is completed, construct a rectangular prefabricated trench at the bottom of the cavern according to the length of the construction frame, and embed concrete blocks in the prefabricated trench. After the blocks have cured, install the perforated base on the top. S2. Construction of the far end of the tunnel and the first ring of lining: Tie the steel bars of the far end of the tunnel and the first ring of lining, pour concrete and cure it to the design strength, and install the first section of perforated support track at the invert arch of the first ring of lining. S3. Installation of the track frame: Assemble the various components of the track frame in the adit. After installation, adjust the first inclined support cylinder at the far end of the tunnel to the perforated support track, and clamp the perforated support track by the clamping mechanism at the piston end of the first inclined support cylinder at the far end of the tunnel. Adjust the first inclined support cylinder near the tunnel entrance to the perforated base in the nearest area, and clamp the perforated base through the clamping mechanism at the piston end of the first inclined support cylinder near the tunnel entrance; the two sets of circumferential support frames (2000) are located at both ends of the track frame (1000), and the vertical support cylinders at the bottom of the two sets of reversing support frames (2000) extend and support the bottom of the tunnel to ensure its stability; the lining installation frame (3000) is located at the track frame (1000) away from the tunnel entrance. S4. Start construction of lining segments: The lining segments are installed using the segment lining installation device (3004) on the lining installation frame (3000). The segment lining installation device (3004) moves in a ring along the lining installation frame (3000) to install one ring of lining segments. After one ring of lining segments is installed, it moves along the track frame (1000) toward the adjacent opening end to install the next ring of lining segments until the installation of lining segments in the entire track frame (1000) area is completed. At this time, the lining installation frame (3000) moves to the adjacent opening end of the track frame (1000) and stops the installation process of the lining segments. S5. After the lining sheet of the track frame (1000) area is installed in step S4, the second perforated support track is installed in the arch area of ​​the installed lining sheet. The second perforated support track is connected with the first perforated support track in step S2. At the same time, the first support frame track is installed on the side wall and top surface to ensure that each lining sheet of the annular lining has at least one set of tracks, and the position of the first support frame track corresponds to the second inclined support cylinder (2008) on the circumferential support frame at the far end of the tunnel. The vertical support cylinder (2013) at the bottom of the circumferential support frame near the tunnel opening is extended and fixed to the ground. Then, the second inclined support cylinder (2008) on the circumferential support frame at the far tunnel opening is extended and slides into contact with the corresponding first section support frame track on the lining sheet. The circumferential support frame at the far tunnel opening is moved along the track towards the near tunnel opening. During the movement, the support wheel group at the piston end of the second inclined support cylinder moves along the corresponding support frame track to correct and compress the installed lining sheet, thus completing the installation of the first section lining sheet. S6. After the first section of lining is installed, extend the vertical support cylinder (2013) at the far end of the tunnel and tighten it against the ground of the lining. Release the clamping mechanism at the piston end of the first inclined support cylinder (1008) at the far end of the tunnel from the perforated support rail. Release the clamping mechanism at the piston end of the first inclined support cylinder (1008) at the near end of the tunnel from the perforated base. At the same time, control the drive motors of the two ring support frames to rotate in opposite directions. Under the transmission of gears and toothed rails, the rail frame moves horizontally to the next construction area. S7. After the track frame is moved into place, install the second section of support track on the side wall of the cavern in the area where the track frame is located. The length of the second section of support track matches the length of the near-hole end ring support frame moving on the track frame. Control the near-hole end ring support frame to move along the track frame to the near-hole end of the track frame, and then remove the second section of support track. S8. Repeat steps S4 and S5 to complete the installation of the second lining segment; then repeat steps S6 and S7 to move the track frame to the next construction area. S9. Repeat step S8 until the lining of the entire cavern is completed, and then dismantle the construction scaffold.

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