Construction trolley for air cushion type surge chamber in hydropower station and its usage method

Abstract

This invention provides a comprehensive construction trolley for air-cushion surge chambers in hydropower stations and its usage method. It includes a frame system supporting the entire trolley; a translation system for driving the trolley's movement along the surge chamber is installed at the bottom of the frame system; a top arch system for assisting in the construction of the surge chamber's dome is installed at the top of the frame system; multiple sets of slipform systems for lining the inner sidewalls of the surge chamber are symmetrically arranged on both outer sides of the frame system; multiple sets of lifting systems for lifting operations are also arranged on both outer sides of the frame system; the translation system, top arch system, and slipform system are connected to a hydraulic system for controlling their movements. This invention effectively solves the key problems commonly found in existing air-cushion surge chamber construction trolleys, such as poor versatility, high investment in safety measures, long process transition times, high construction costs, significant safety risks, difficulty in quality control, and constraints on the construction period.

Description

Technical Field

[0001] This invention relates to the field of underground engineering construction in hydropower stations, and in particular to a multi-functional integrated work trolley and its usage method that can meet the requirements of excavation and support, pressure equalization system installation, rebar binding, airtight steel plate installation, concrete lining, grouting and other processes during the construction of an air cushion type surge chamber in a hydropower station. Background Technology

[0002] The air-cushion surge chamber of a hydropower station has a large cross-section and a very complex structure. It is usually designed as a composite tunnel structure including anchor mesh spray support, pressure equalization system, reinforced concrete outer wall, steel plate airtightness, and reinforced concrete inner wall, as well as backfilling, consolidation, and contact grouting. The technical quality requirements are strict, the construction process is complex, and the construction procedures are cumbersome, often making it one of the critical routes in the construction of a hydropower station.

[0003] Given the complex structure, cumbersome construction procedures, and stringent technical requirements of air cushion pressure regulating chambers, rigorous construction measures, advanced construction techniques, and strict organizational management are essential to ensure construction safety, quality, schedule, and cost control.

[0004] Traditionally, during construction processes such as excavation and support, installation of the pressure stabilization system, installation of airtight steel plates, rebar tying, concrete lining, and grouting, different types of work platforms or frequent scaffolding are used as work platforms depending on the different construction steps to meet the needs of each step. While this method is flexible, it also has significant problems, mainly manifested in the following ways:

[0005] First, the versatility of the workbenches for different processes is poor, making them difficult to reuse, and the costs of manufacturing, installation, and modification are high.

[0006] Secondly, the frequent installation and dismantling of scaffolding or modification of platforms requires a large investment of resources and has poor reliability, which increases the project cost to some extent.

[0007] Third, frequent changes in construction procedures, poor coordination, high costs of technical measures, difficulty in quality control, high safety risks, and long cycle times in the process restrict the construction period.

[0008] In summary, designing a multi-functional integrated work trolley that can meet the needs of excavation support, pressure system installation, and can also be used for rebar binding and airtight steel plate installation; and that can meet the needs of sidewall concrete slipforming, top arch concrete lining, consolidation, backfilling, and contact grouting construction of an air cushion pressure chamber has become a problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0009] The purpose of this invention is to provide a comprehensive work trolley for the construction of air cushion surge chambers in hydropower stations and its usage method. This work trolley can effectively solve the key problems commonly found in existing work trolleys during the construction of air cushion surge chambers, such as poor versatility, high investment in safety measures, long process conversion time, high construction cost, high safety risk, difficulty in quality control, and constraints on the construction period. The invention provides a multi-functional comprehensive work trolley that is simple in structure, flexible and convenient, safe and reliable, reusable, and can meet the requirements of different work processes during construction.

[0010] To achieve the aforementioned technical features, the present invention provides the following: a hydropower station air-cushion type surge tank construction trolley, comprising a frame system for supporting the entire trolley; a translation system for driving the trolley to move along the surge tank is installed at the bottom of the frame system; a top arch system for assisting in the construction of the surge tank's arch is provided at the top of the frame system; multiple sets of slipform systems for constructing the inner sidewall lining of the surge tank are symmetrically arranged on both outer sides of the frame system; multiple sets of lifting systems for lifting operations are provided on both outer sides of the frame system; the translation system, the top arch system, and the slipform system are connected to a hydraulic system for controlling their movements.

[0011] The platform system includes multiple sets of truss columns; adjacent sets of truss columns are fixedly connected by top trusses and middle trusses to form a portal frame structure; multiple portal frame structures are fixedly connected by top transverse trusses and middle transverse trusses; and the portal frame structures are supported and connected by truss diagonal braces.

[0012] The length of the frame system is determined based on the length of the controlled atmosphere chamber, the location of the joints, and the length of the reinforcing bars. The length is 6 to 10 meters, and 3 to 5 gantry structures are assembled into a rigid whole.

[0013] The translation system includes a track base plate anchored by anchor bolts, which is supported on the bottom foundation of the pressure regulating chamber. A track is fixed on the top of the track base plate, and the track and track wheels installed at the bottom of the truss columns of the test bench system form a rolling engagement. The track wheels are connected to a hydraulic track climber for driving them to move along the track. When the test bench system needs to move, the front end of the hydraulic track climber is locked onto the track, and the test bench system is moved horizontally by being driven by a hydraulic control console.

[0014] The top arch system includes frames processed according to the cross-section of the inner wall lining of the arch. The frames are connected by support rods to form a rigid arch. The rigid arch is supported on the top of multiple sets of large-stroke hydraulic jacks. The large-stroke hydraulic jacks are supported on the top of the platform system to meet the requirements of flat pressure system layout, rebar binding, airtight steel plate installation, and grouting. When the inner arch is lining with concrete, the assembly template is installed on the arch frame of the rigid arch to complete the top arch concrete construction in sections.

[0015] The slipform system includes a slipform climbing rod vertically fixed between the gantry structure of the platform system and the foundation of the pressure regulating chamber. A side wall slipform is installed on the slipform climbing rod in cooperation with a slipform jack. A demolding jack is set between the side wall slipform and the truss column of the platform system. A side wall template for side wall pouring is set on the outer side wall of the side wall slipform.

[0016] The sidewall slipform adopts a lightweight truss structure with a cross-sectional dimension of 1.2-1.5m. The length of the sidewall slipform is consistent with the length of the platform system. The vertical surface of the lightweight truss structure is assembled into a template using ordinary steel formwork to meet the slipform requirements of the sidewall and end wall, so as to complete the concrete slipform construction of the sidewall in sections. The upper surface of the lightweight truss structure is covered with a mesh steel plate or wooden board as a working platform. A railing and safety net are installed on the open surface to ensure the safety of the operation.

[0017] The lifting system includes a lifting hoist fixed to the gantry structure of the platform system, and a lifting hoist wire rope is wound around the lifting hoist.

[0018] The hydraulic system includes a hydraulic pump station, control valves, and a controller. The hydraulic system is connected to the hydraulic climbing device of the translation system to realize the translation and positioning of the trolley; the hydraulic system is connected to the large-stroke hydraulic jacks of the arch system to realize the installation support of the arch airtight steel plate, the support of the concrete inner wall lining, and the demolding function; the hydraulic system is connected to the sliding jacks of the sliding formwork system to implement the tension-compression combined suspension sliding formwork; the hydraulic system is connected to the demolding jacks of the sliding formwork system to realize the demolding of the side wall formwork.

[0019] The method for using the integrated operation trolley for the construction of air cushion type surge chambers in hydropower stations includes the following steps:

[0020] Step 1, System Manufacturing:

[0021] The trolley's frame system, top arch system, and slipform system are manufactured in separate parts in the steel structure workshop, and pre-assembled and tested. After passing the acceptance test, they are numbered and then disassembled and transported.

[0022] Step 2, on-site installation:

[0023] 2.1 First, pour the concrete for the bottom slab of the controlled atmosphere chamber, leave the track embedded parts for the trolley translation system and lay the walking track, and at the same time leave the outer layer of reinforcing bars and install the first layer of airtight steel plate.

[0024] 2.2 Assemble the platform system and translation system, connect and reinforce all supports to form an overall rigid structure;

[0025] 2.3 Install and arrange the slipform system, and install the suspension lifting system;

[0026] 2.4 Install a fixed arch system on top of the pedestal system;

[0027] 2.5 Connect the hydraulic system and conduct no-load tests on the translation system, arching system, and sliding formwork system;

[0028] 2.6 Once all devices and systems have been adjusted and perfected, they can be put into use.

[0029] Step 3, Installation of outer reinforcing steel:

[0030] Using the slipform system as a working platform, the outer layer of steel bars is tied and reinforced from bottom to top; then the top arch system is used as a working platform to tie and reinforce the outer layer of steel bars of the top arch.

[0031] Step 4, Construction of the pressure equalization system:

[0032] Using the slipform system and the top arch system as working platforms, the drilling of the system's flat pressure holes and the installation of steel pipes for the circumferential and longitudinal flat pressure pipes were completed.

[0033] Step 5, Installation of the airtight steel plate:

[0034] The airtight steel plate is positioned and welded using a lifting system and reinforced to the outer steel reinforcement with tie rods. It is then firmly supported on the platform system using a slipform system to resist the lateral pressure of the concrete and ensure that the airtight steel plate does not deform during backfilling. After the airtight steel plates for the side walls and end walls are installed to the arch shoulder position and the backfilling concrete is completed, the airtight steel plate for the top arch is installed, welded, supported, and fixed using a lifting system and a top arch system.

[0035] Step 6, outer wall concrete lining:

[0036] After each layer of airtight steel plate is installed, concrete is backfilled until the sidewall reaches the arch shoulder; after the airtight steel plate of the top arch is completed, the concrete backfilling construction of the outer wall of the top arch is carried out.

[0037] Step 7, backfilling and grouting of the outer wall arch:

[0038] After the backfill concrete of the top arch is completed and has been strengthened, the top arch system is used as a working platform for backfill grouting of the top arch.

[0039] Step 8, Installation of inner layer reinforcing bars:

[0040] Using the slipform system and the arch system as working platforms, the steel bars of the side walls, end walls and arch top are tied in place at one time and securely connected to the airtight steel plate by tie rods.

[0041] Step 9, Inner wall concrete lining:

[0042] The sidewalls are lining in sections using a combination of tension and compression and suspended slipform technology, while the top arch concrete is lining in sections using the top arch system that lags behind the sidewalls.

[0043] Step 10, Grouting of the inner wall arch:

[0044] After the backfill concrete on the inner wall of the arch is completed and has been strengthened, the arch system is used as a working platform for arch backfill grouting and contact grouting.

[0045] The present invention has the following beneficial effects:

[0046] 1. The trolley of this invention enables the completion of rebar binding in one go, the placement of the flat pressure system in one go, and the layered installation of the airtight steel plate with the support of the slipform and the platform, ensuring construction accuracy and quality.

[0047] 2. The sidewalls of this invention adopt a combination of tension and compression and suspended slipform construction, which can effectively avoid the shortcomings of full-section steel formwork trolley concrete lining. The concrete construction process is intuitive and visible, and the layered and compartmentalized, uniform leveling and dense vibration are guaranteed. Defects can be eliminated and curing can be carried out in a timely manner, which is conducive to concrete quality control.

[0048] 3. The trolley of this invention has multiple functions. It can be used for construction such as anchor spraying support, rebar binding, flat pressure system installation, airtight steel plate installation, and grouting. It can also be used for side wall slip forming and top arch lining. The trolley can be used in a comprehensive manner, making full use of facilities, quickly switching between processes, ensuring construction progress, which is beneficial to the construction period and can effectively reduce project costs.

[0049] 4. The trolley of this invention has a fully enclosed structure, allowing for relatively independent three-dimensional cross-parallel operations of multiple trades and processes. This reduces the cumbersome scaffolding installation and dismantling procedures, eliminates many safety hazards, and ensures safe construction.

[0050] 5. The trolley of this invention adopts a rail-wheel type and is pulled by a hydraulic rail climber, which can move to the next compartment number for construction in a relatively short time, which is convenient and quick and facilitates rapid changeover of processes. Attached Figure Description

[0051] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0052] Figure 1 This is a cross-sectional diagram of the integrated work trolley.

[0053] Figure 2 This is a schematic diagram of the longitudinal section of the integrated work trolley.

[0054] In the diagram: 1. Platform system; 2. Slipform system; 3. Top arch system; 4. Lifting system; 5. Hydraulic system;

[0055] Top truss 101, truss column 102, truss diagonal brace 103, middle truss 104, top transverse truss 105, middle transverse truss 106;

[0056] 201 demolding jack, 202 sidewall slipform, 203 slipform jack, 204 slipform climbing rod, 205 sidewall formwork;

[0057] Large stroke hydraulic jack 301, frame 302, support rod 303;

[0058] 401 hoist, 402 hoist wire rope;

[0059] Track 601, track base plate 602, anchor bolt 603, hydraulic rail climber 604, track wheel 605;

[0060] 7. Circumferential pressure pipe; 8. Outer edge of concrete structure; 9. Inner edge of concrete structure; 10. Shotcrete layer; 11. Outer reinforcing bar; 12. Inner reinforcing bar; 13. Airtight steel plate; 14. Longitudinal pressure pipe; 15. System pressure hole; 16. System anchor bolt; 17. Excavation outer contour; 18. Backfill grouting inside the airtight steel plate; 19. Backfill grouting outside the airtight steel plate. Detailed Implementation

[0061] The embodiments of the present invention will be further described below with reference to the accompanying drawings.

[0062] Example 1:

[0063] The main design method of this invention is as follows:

[0064] First, a set of platform-type sidewall slipform and arch lining trolleys was designed and manufactured according to the design structure and characteristics of the air-cushion pressure chamber to meet the needs of steel reinforcement installation, concrete lining, backfilling, consolidation, and contact grouting for the inner sidewalls, end walls, and arch. Second, based on this trolley, the sidewall slipform was used as a lifting platform, combined with a lifting system, to complete the binding of the outer layer of steel reinforcement and the installation of the flat pressure system. Third, the sidewall slipform was used as a lifting platform, relying on the lifting system to complete the lifting, positioning, welding, flaw detection, and reinforcement of the airtight steel plate, and the slipform and trolley support for the airtight steel plate were used as templates to complete the layered backfilling of the outer wall concrete. Fourth, the arch trolley was used as a support to complete the installation of the arch airtight steel plate and the backfilling of the outer wall concrete of the arch. Fifth, if manual drilling and blasting excavation is used, it can also be used as an excavation support trolley.

[0065] See Figure 1-2This invention relates to a comprehensive construction trolley for air-cushion surge chambers in hydropower stations. It includes a frame system 1 supporting the entire trolley; a translation system 6 at the bottom of the frame system 1 for driving its movement along the surge chamber; a top arch system 3 at the top of the frame system 1 for assisting in the construction of the surge chamber's arch; multiple sets of slipform systems 2 symmetrically arranged on both sides of the frame system 1 for lining the inner sidewalls of the surge chamber; and multiple sets of lifting systems 4 on both sides of the frame system 1 for lifting operations. The translation system 6, the top arch system 3, and the slipform systems 2 are connected to a hydraulic system 5 for controlling their movements. This trolley effectively solves the key problems commonly found in existing air-cushion surge chamber construction trolleys, such as poor versatility, high investment in safety measures, long process transition times, high construction costs, significant safety risks, difficult quality control, and constraints on the construction period. It is a simple, flexible, safe, reliable, and reusable multi-functional comprehensive construction trolley that can meet the requirements of different work processes during construction.

[0066] Furthermore, the platform system 1 includes multiple sets of truss columns 102; adjacent sets of truss columns 102 are fixedly connected by a top truss 101 and a middle truss 104, forming a gantry structure; multiple gantry structures are fixedly connected by a top transverse truss 105 and a middle transverse truss 106; and the gantry structures are supported and connected by truss diagonal braces 103. The platform system is the skeleton of the integrated work trolley and must have sufficient strength and rigidity. It is generally fabricated from structural steel into a gantry or truss structure for easy passage; the gantry height is comprehensively considered in light of process requirements such as sidewall slipforming, airtight steel plate installation, and top arch lining.

[0067] Furthermore, the length of the frame system 1 is determined based on the length of the controlled atmosphere chamber, the location of the joints, and the length of the reinforcing bars, with a length of 6-10m. It is assembled into a rigid whole using 3-5 portal frame structures. This dimensional arrangement allows for adaptability to the construction of the controlled atmosphere chamber.

[0068] Furthermore, the translation system 6 includes a track base plate 602 anchored by anchor bolts 603, which is supported on the bottom foundation of the pressure regulating chamber. A track 601 is fixed on top of the track base plate 602, and the track 601 is in rolling engagement with a track wheel 605 installed at the bottom end of the truss column 102 of the platform system 1. The track wheel 605 is connected to a hydraulic track climber 604 for driving it to move along the track 601. When the platform system 1 needs to move, the front end of the hydraulic track climber 604 is engaged with the track 601, and the platform system 1 is moved horizontally by being driven by a hydraulic control console. The translation system 6 is a platform moving device. Generally, the platform is designed as a track-wheel moving type, with the track wheels fixed on the gantry, and their model matching the moving track.

[0069] Furthermore, the top arch system 3 includes frames 302 fabricated according to the cross-section of the inner wall lining of the arch. The frames 302 are connected by support rods 303 to form a rigid arch. The rigid arch is supported on the top of multiple sets of large-stroke hydraulic jacks 301, which are supported on the top of the platform system 1. This satisfies the requirements for the flat pressure system layout, rebar binding, airtight steel plate installation, and grouting. During the inner arch concrete lining, the formwork is installed on the arch frame of the rigid arch to complete the top arch concrete construction in sections. The top arch system 3 serves as both the work platform for the flat pressure system layout, rebar binding, airtight steel plate installation, arch concrete lining, and grouting construction, and as the top arch formwork and support system, thus requiring a certain degree of rigidity.

[0070] Furthermore, the slipform system 2 includes a slipform climbing rod 204 vertically fixed between the gantry structure of the platform system 1 and the foundation of the pressure regulating chamber. A sidewall slipform 202 is installed on the slipform climbing rod 204 in conjunction with slipform jacks 203. A demolding jack 201 is installed between the sidewall slipform 202 and the truss column 102 of the platform system 1. A sidewall formwork 205 for sidewall pouring is installed on the outer wall of the sidewall slipform 202. In addition to meeting the requirements for inner wall concrete construction, the slipform system 2 also serves as a construction platform for processes such as flat pressure system layout, rebar tying, steel plate installation, and grouting. The slipform jacks 203 are composed of specialized through-hole jacks and a hydraulic system; these are standardized products, and their quantity is determined through calculation.

[0071] Furthermore, the sidewall slipform 202 adopts a lightweight truss structure with a cross-sectional dimension of 1.2-1.5m, and the length of the sidewall slipform 202 is consistent with the length of the platform system 1; the vertical surface of the lightweight truss structure is assembled into a template using ordinary steel formwork to meet the slipform requirements of the sidewall and end wall, so as to complete the sidewall concrete slipform construction in sections; the upper plane of the lightweight truss structure is covered with a mesh steel plate or wooden board as a working platform; railings are set on the open surface and safety nets are hung to ensure the safety of operation.

[0072] Furthermore, the lifting system 4 includes a lifting hoist 401 fixed to the gantry structure of the platform system 1, with a lifting hoist wire rope 402 wound around the lifting hoist 401. The lifting system 4 is a hoisting device for materials such as reinforcing bars, formwork, and steel plates. Generally, an electric hoist or a suspended manual hoist is hung on the upper part of the platform, and different lifting tools can be configured according to the lifting weight to meet the construction needs of each process.

[0073] Furthermore, the hydraulic system 5 includes a hydraulic pump station, control valves, and a controller. The hydraulic system 5 is connected to the hydraulic track climber 604 of the translation system 6, enabling the translation and positioning of the trolley. The hydraulic system 5 is also connected to the large-stroke hydraulic jack 301 of the arch system 3, enabling the installation and support of the arch airtight steel plate, the support of the concrete inner wall lining, and demolding functions. The hydraulic system 5 is connected to the sliding formwork jack 203 of the sliding formwork system 2, implementing a tension-compression combined suspension sliding formwork system. Finally, the hydraulic system 5 is connected to the demolding jack 201 of the sliding formwork system 2, enabling the demolding of the sidewall formwork 205. The hydraulic system 5 is a centralized control device for sidewall sliding formwork, airtight steel plate support, arch support, demolding, and trolley movement. All hydraulic systems are centrally controlled by a hydraulic control console.

[0074] Example 2:

[0075] The method for using the integrated operation trolley for the construction of air cushion type surge chambers in hydropower stations includes the following steps:

[0076] Step 1, System Manufacturing:

[0077] The trolley's frame system 1, top arch system 3, and slipform system 2 are manufactured separately in the steel structure workshop, and pre-assembled and tested. After passing the acceptance test, they are numbered and then disassembled and transported.

[0078] Step 2, on-site installation:

[0079] 2.1 First, pour the concrete for the bottom slab of the controlled atmosphere chamber, leave the track embedded parts for the trolley translation system 6 and lay the walking track, and at the same time leave the outer layer of steel reinforcement bars and install the first layer of airtight steel plate.

[0080] 2.2 Assembly platform system 1 and translation system 6 connect and reinforce all supports to form an overall rigid structure;

[0081] 2.3 Install and arrange the slipform system 2, and arrange the suspension lifting system 4;

[0082] 2.4 Install the fixed arch system 3 on top of the platform system 1;

[0083] 2.5 Connect the hydraulic system 5 and conduct no-load tests on the translation system 6, the arching system 3, and the sliding system 2;

[0084] 2.6 Once all devices and systems have been adjusted and perfected, they can be put into use.

[0085] Step 3, Installation of outer reinforcing bar 11:

[0086] Using the slipform system 2 as a working platform, the outer layer of steel bars 11 is tied and reinforced from bottom to top in one go; then the top arch system 3 is used as a working platform to tie and reinforce the outer layer of steel bars of the top arch.

[0087] Step 4, Construction of the pressure equalization system:

[0088] Using the slipform system 2 and the top arch system 3 as working platforms, the drilling of the system flat pressure hole 15 and the installation of the steel pipes of the circumferential flat pressure pipe 7 and the longitudinal flat pressure pipe 14 were completed.

[0089] Step 5, Installation of the airtight steel plate 13:

[0090] The airtight steel plate 13 is positioned and welded using the lifting system 4 and reinforced to the outer steel bar 11 with tie rods. It is then firmly supported on the platform system 1 using the slipform system 2 to resist the lateral pressure of the concrete and ensure that the airtight steel plate 13 does not deform during backfilling. After the airtight steel plates of the side walls and end walls are installed to the arch shoulder position and the backfilling concrete is completed, the airtight steel plate of the top arch is installed, welded, supported and fixed using the lifting system 4 and the top arch system 3.

[0091] Step 6, outer wall concrete lining:

[0092] After each layer of airtight steel plate is installed, concrete is backfilled until the sidewall reaches the arch shoulder; after the airtight steel plate of the top arch is completed, the concrete backfilling construction of the outer wall of the top arch is carried out.

[0093] Step 7, backfilling and grouting of the outer wall arch:

[0094] After the backfill concrete of the top arch is completed and has been strengthened, the top arch system 3 is used as a working platform for the backfill grouting of the top arch.

[0095] Step 8, Installation of inner layer steel bar 12:

[0096] Using the slipform system 2 and the top arch system 3 as working platforms, the side walls, end walls and arch top steel bars are tied in place at one time and securely connected to the airtight steel plate 13 by tie bars;

[0097] Step 9, Inner wall concrete lining:

[0098] The sidewalls are lining in sections using a combination of tension and compression and suspended slipform technology, and the top arch concrete is lining in sections using the top arch system 3, which lags behind the sidewalls.

[0099] Step 10, Grouting of the inner wall arch:

[0100] After the backfill concrete on the inner wall of the arch is completed and has been strengthened, the arch system 3 is used as a working platform for arch backfill grouting and contact grouting.

Claims

1. A comprehensive construction operation trolley for air-cushion type surge chambers in hydropower stations, characterized in that: It includes a frame system (1) for supporting the entire trolley; a translation system (6) for driving the frame system (1) to move along the pressure regulating chamber is installed at the bottom; a top arch system (3) for assisting the construction of the pressure regulating chamber arch is provided at the top of the frame system (1); multiple sets of slipform systems (2) for lining the inner sidewall of the pressure regulating chamber are symmetrically arranged on both sides of the frame system (1); multiple sets of lifting systems (4) for lifting operations are provided on both sides of the frame system (1); the translation system (6), the top arch system (3) and the slipform system (2) are connected to a hydraulic system (5) for controlling their movements; The slipform system (2) includes a slipform climbing rod (204) vertically fixed between the gantry structure of the platform system (1) and the foundation of the pressure regulating chamber. A side wall slipform (202) is installed on the slipform climbing rod (204) in cooperation with a slipform jack (203). A demolding jack (201) is provided between the side wall slipform (202) and the truss column (102) of the platform system (1). A side wall template (205) for side wall casting is provided on the outer side wall of the side wall slipform (202). The sidewall slipform (202) adopts a lightweight truss structure with a cross-sectional dimension of 1.2-1.5m, and the length of the sidewall slipform (202) is consistent with the length of the platform system (1); The vertical surface of the lightweight truss structure is assembled with ordinary steel formwork to meet the slip-form requirements of the side walls and end walls, so as to complete the slip-form construction of the side wall concrete in sections; the upper surface of the lightweight truss structure is covered with a mesh steel plate or wooden board as a working platform. Guardrails and safety nets are installed on the open side to ensure work safety; Using the slipform system (2) as a working platform, the outer layer of steel bars (11) is tied and reinforced from bottom to top; then the top arch system (3) is used as a working platform to tie and reinforce the outer layer of steel bars of the top arch. Using the slipform system (2) and the top arch system (3) as working platforms, the drilling construction of the system flat pressure hole (15) and the installation of the steel pipes of the circumferential flat pressure pipe (7) and the longitudinal flat pressure pipe (14) were completed. The platform system (1) includes multiple sets of truss columns (102); two adjacent sets of truss columns (102) are fixedly connected by a top truss (101) and a middle truss (104) to form a portal frame structure; multiple portal frame structures are fixedly connected by a top transverse truss (105) and a middle transverse truss (106); and the portal frame structures are supported and connected by truss diagonal braces (103). The length of the frame system (1) is determined according to the length of the controlled atmosphere chamber, the position of the joint and the length of the steel bars. The length is 6~10m and 3-5 gantry structures are assembled into a rigid whole.

2. The integrated operation trolley for the construction of a hydropower station air cushion type surge chamber according to claim 1, characterized in that: The translation system (6) includes a track base plate (602) anchored by anchor bolts (603), which is supported on the bottom foundation of the pressure regulating chamber. A track (601) is fixed on the top of the track base plate (602). The track (601) and the track wheel (605) installed at the bottom of the truss column (102) of the platform system (1) form a rolling engagement. The track wheel (605) is connected to a hydraulic track climber (604) for driving it to move along the track (601). When the platform system (1) needs to move, the front end of the hydraulic track climber (604) is locked on the track (601) and driven by the hydraulic control console to pull the platform system (1) to move horizontally.

3. The integrated construction trolley for the air cushion type surge chamber of a hydropower station according to claim 1, characterized in that: The top arch system (3) includes a frame (302) processed according to the cross section of the inner wall lining of the arch. The frames (302) are connected by support rods (303) to form a rigid arch. The rigid arch is supported on the top of multiple sets of large-stroke hydraulic jacks (301). The large-stroke hydraulic jacks (301) are supported on the top of the platform system (1) to meet the requirements of flat pressure system layout, steel bar binding, airtight steel plate installation, grouting process. When the inner wall arch is lining with concrete, the assembly template is installed on the arch frame of the rigid arch to complete the top arch concrete construction in sections.

4. The integrated operation trolley for the construction of a hydropower station air cushion type surge chamber according to claim 1, characterized in that: The lifting system (4) includes a lifting hoist (401) fixed on the gantry structure of the platform system (1), and a lifting hoist wire rope (402) is wound on the lifting hoist (401).

5. The integrated operation trolley for the construction of a hydropower station air cushion type surge chamber according to claim 1, characterized in that: The hydraulic system (5) includes a hydraulic pump station, control valves and controllers. The hydraulic system (5) is connected to the hydraulic rail climber (604) of the translation system (6) and realizes the translation and positioning of the trolley. The hydraulic system (5) is connected to the large stroke hydraulic jack (301) of the arch system (3) to realize the installation support of the arch airtight steel plate, the support of the concrete inner wall lining and the demolding function. The hydraulic system (5) is connected to the sliding jack (203) of the sliding formwork system (2) to implement the tension and compression combined suspension sliding formwork. The hydraulic system (5) is connected to the demolding jack (201) of the sliding formwork system (2) to realize the demolding of the side wall formwork (205).

6. The method of using the integrated operation trolley for the construction of the air cushion type surge chamber of a hydropower station as described in any one of claims 1-5, characterized in that, Includes the following steps: Step 1, System Manufacturing: The trolley's frame system (1), top arch system (3) and slipform system (2) are manufactured in parts in the steel structure workshop, and pre-assembled and tested. After passing the acceptance test, they are numbered and then disassembled and transported. Step 2, on-site installation: 2.1 First, pour concrete for the bottom slab of the controlled atmosphere chamber, leave the track embedded parts for the trolley translation system (6) and lay the walking track, and at the same time leave the outer layer of reinforcing bars and install the first layer of airtight steel plate. 2.2, Assemble the platform system (1) and the translation system (6), connect all supports and reinforce them to form an overall rigid structure; 2.3 Install and arrange the slipform system (2), and arrange the suspension lifting system (4); 2.4 Install a fixed arch system (3) on top of the platform system (1); 2.5 Connect the hydraulic system (5) and conduct no-load tests on the translation system (6), the arching system (3) and the sliding system (2); 2.6 Once all devices and systems have been adjusted and perfected, they can be put into use. Step 3, Installation of outer reinforcing steel (11): Using the slipform system (2) as a working platform, the outer layer of steel bars (11) is tied and reinforced from bottom to top; then the top arch system (3) is used as a working platform to tie and reinforce the outer layer of steel bars of the top arch. Step 4, Construction of the pressure equalization system: Using the slipform system (2) and the top arch system (3) as working platforms, the drilling construction of the system flat pressure hole (15) and the installation of the steel pipes of the circumferential flat pressure pipe (7) and the longitudinal flat pressure pipe (14) were completed. Step 5, Installation of the airtight steel plate (13): The airtight steel plate (13) is positioned and welded using the lifting system (4) and reinforced to the outer steel bar (11) using tie rods; it is firmly supported on the platform system (1) using the slipform system (2) to resist the lateral pressure of the concrete and ensure that the airtight steel plate (13) does not deform when backfilling concrete; after the airtight steel plates of the side walls and end walls are installed to the arch shoulder position and the backfilling concrete is completed, the airtight steel plate of the top arch is installed, welded, supported and fixed using the lifting system (4) and the top arch system (3); Step 6, outer wall concrete lining: After each layer of airtight steel plate is installed, concrete is backfilled until the sidewall reaches the arch shoulder; after the airtight steel plate of the top arch is completed, the concrete backfilling construction of the outer wall of the top arch is carried out. Step 7, backfilling and grouting of the outer wall arch: After the top arch backfill concrete is completed and has been strengthened, the top arch system (3) is used as a working platform for top arch backfill grouting. Step 8, Installation of inner layer steel reinforcement (12): Using the slipform system (2) and the top arch system (3) as working platforms, the side walls, end walls and arch top steel bars are tied in place at once and securely connected to the airtight steel plate (13) through tie bars; Step 9, Inner wall concrete lining: The sidewalls are lining in sections using a combination of tension and compression and a suspended slipform technique. The top arch concrete is lining in sections using the top arch system (3) that lags behind the sidewalls. Step 10, Grouting of the inner wall arch: After the concrete backfilling of the inner wall of the top arch is completed and the concrete has been strengthened, the top arch system (3) is used as a working platform for backfilling grouting and contact grouting of the top arch.

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