Movable fault zone water conveyance tunnel structure

Abstract

The invention provides an active fault zone water delivery tunnel structure, relates to the technical field of tunnel construction, and aims to solve the problems of cracking, leakage and the like of a traditional water delivery tunnel caused by geological activities. The structure comprises a concrete lining arranged in the axial direction of a mountain movable fault zone, and a water conveying cave digging chamber is formed; the concrete buttresses are arranged along the bottom wall of the cavern at intervals; the water conveying steel pipe is formed by axially connecting a plurality of water conveying pipe sections, and the pipe sections are embedded in arc-shaped grooves formed in the buttresses; the elastic cushion layer is located in the arc-shaped groove and attached to the water conveying pipe joint; and the expansion joints are arranged between the adjacent water conveying pipe joints. The concrete lining is provided with a plurality of deformation joints, and the deformation joints and the telescopic joints are oppositely arranged in the vertical direction. Through the design of the expansion joints and the elastic cushion layer, pipeline damage and leakage caused by geological activities can be effectively avoided, and the stability and safety of the water channel are ensured.

Description

Technical Field

[0001] The invention relates to the technical field of tunnel construction, and in particular to a water conveyance tunnel structure in an active fault zone. Background Art

[0002] As an important infrastructure for regulating the load of the power grid and improving the capacity of absorbing new energy, pumped storage power stations are experiencing large-scale development. In recent years, the construction area of ​​pumped storage power stations has expanded from traditional coastal areas to western regions, and has gradually formed a coordinated supporting model with the development of new energy such as wind power and photovoltaics to optimize the energy structure. However, due to the complex geological conditions in the western region, the construction of pumped storage power stations faces a series of engineering challenges. Among them, the layout of underground waterways is a key link in engineering design, especially when the waterway crosses an active fault zone, it may cause many technical problems.

[0003] In the active fault zone area, the rock mass often presents a highly fragmented characteristic, and the geological structure is relatively unstable, resulting in a significant increase in the risk of structural deformation, cracking, and leakage during the excavation and operation of the waterway. First, due to the redistribution of ground stress and the development of joints and fissures within the fault zone, the bearing capacity of the surrounding rock decreases, and the waterway structure is prone to displacement and deformation during operation, and even causes lining damage in severe cases. Secondly, under high head conditions, groundwater infiltrates along the joints and fissures in the broken rock mass, which may not only aggravate leakage, but also cause local water pressure concentration, further weaken the stability of the surrounding rock, and even induce disasters such as water and mud inrush. Thirdly, the long-term movement characteristics of the active fault zone make the waterway structure affected by earthquakes or slow displacements. During the operation stage, it may experience long-term stress accumulation and fatigue damage, which may lead to structural cracking or even failure. In addition, existing technologies have many limitations in dealing with these challenges. For example, traditional anti-seepage measures often rely on the layout of lining structures and anti-seepage layers, but in fault zones, such measures have low long-term effectiveness and are difficult to resist the impact of continuous geological movements and high water pressure. Although reinforcement measures such as grouting consolidation can improve the strength of the surrounding rock to a certain extent, the grouting effect is difficult to guarantee due to the heterogeneity of the rock mass in the fault zone. Therefore, how to reasonably arrange the waterway of pumped storage power stations in active fault zones and effectively improve the stability and anti-seepage capacity of the waterway structure has become a technical problem that needs to be solved urgently in this field. Summary of the invention

[0004] The invention discloses an active fault zone water conveyance tunnel structure to solve the technical problem of poor stability of active fault zone waterways in related technologies.

[0005] In order to solve the above problems, the present invention adopts the following technical solutions: A water conveyance tunnel structure in an active fault zone, comprising: a concrete lining, arranged axially along the active fault zone of a mountain to form an excavated cavern of a water conveyance tunnel; a plurality of concrete piers, arranged at intervals on the bottom wall of the excavated cavern of the water conveyance tunnel along the length direction of the excavated cavern of the water conveyance tunnel; a water conveyance steel pipe, the water conveyance steel pipe is formed by axially connecting a plurality of water conveyance pipe sections, an arc-shaped groove is provided on the concrete pier, and the water conveyance pipe section is embedded in the arc-shaped groove; an elastic cushion layer, the elastic cushion layer is laid in the arc-shaped groove and fits with the water conveyance pipe section; an expansion joint, coaxially connected between two adjacent water conveyance pipe sections; wherein the concrete lining is provided with a plurality of lining deformation joints along its own length direction, and the lining deformation joints are arranged opposite to the expansion joints in the vertical direction.

[0006] Preferably, the circumferential length of the cross section of the water pipe segment falling into the arc-shaped groove is 1 / 3 of the circumferential length of the cross section of the water pipe segment.

[0007] Preferably, along the axial direction of the steel pipe, 3 to 5 water pipe sections are spaced between two adjacent expansion joints.

[0008] Preferably, it further comprises a mobile inflation mechanism, and an air bag is arranged between the arc-shaped groove and the elastic cushion layer, and the air bag has a flat state and an inflated state under the action of the mobile inflation mechanism, wherein: When the airbag is in a flat state, the airbag does not apply an elastic buffering force to the water pipe section; when the airbag is in an inflated state, the airbag and the elastic cushion layer jointly apply an elastic buffering force to the water pipe section.

[0009] Preferably, the mobile inflation mechanism comprises an inflation component, a driving component and a moving component, wherein: A plurality of branch grooves are provided on the surface of the concrete pier and located at the arc-shaped groove at intervals, and the airbags in a flat state are laid in the plurality of branch grooves at the same time; a movable groove is provided between adjacent branch grooves, the movable component is slidably provided in the movable groove, and adjacent branch grooves are separated by the movable component, when the movable component is in the movable groove, part of the elastic cushion layer abuts against the movable component, and part of the airbag in a flat state is laid in the movable groove; the inflation component is provided on one side of the concrete pier, and the inflation component is used to introduce gas into the airbag so that the airbag switches from a flat state to an inflated state; the driving component is provided on the other side of the concrete pier, and is used to drive the movable component to completely move out of the movable groove; when the movable component is moved out of the movable groove, the inflation component introduces gas into the airbag so that the airbag switches from a flat state to an inflated state, and the airbag gradually fills the movable groove and the branch groove and abuts against the elastic cushion layer.

[0010] Preferably, the moving assembly comprises a moving straight bar, the surface of the moving straight bar is covered with a polytetrafluoroethylene layer, and the upper surface of the airbag in a folded state and the lower surface of the elastic cushion layer are also covered with a polytetrafluoroethylene layer.

[0011] Preferably, the driving assembly includes a rodless cylinder, a connecting plate, a bracket and a transverse connecting rod, wherein the rodless cylinder is installed in the excavated cave chamber of the water conveyance tunnel and is located on one side of the concrete pier, the length direction of the rodless cylinder is consistent with the length direction of the movable groove, the connecting plate is arranged on the movable piston rod of the rodless cylinder, the bracket is provided with multiple groups on the connecting plate, the transverse connecting rod is horizontally arranged on the top end of the bracket and is coaxially connected with one end of the movable straight bar; a frame is also provided between the rodless cylinder and the concrete pier, and a track is provided on the top of the frame, and the track is connected with the movable groove so that the movable straight bar can completely slide out of the movable groove and move into the track.

[0012] Preferably, the inflation assembly includes an air pump and an air tube, the air pump is placed on one side of the concrete pier, the air tube is installed at the pump outlet end of the air pump, and the end of the air tube away from the air pump is connected to the airbag; wherein, in the process of the movable straight bar moving from the movable groove to the track, the air pump is started synchronously so that the part of the airbag located in the movable groove is inflated synchronously with the movement of the movable straight bar.

[0013] Preferably, the inflation tube includes a connected hose and a hard tube, the hose is connected to the airbag, and the hard tube is connected to the pump outlet end of the inflation pump; an airflow guide component is provided in the hard tube, and the airflow guide component can drive the compressed gas to normally enter the hose from the hard tube when the inflation pump is started, and prevent the compressed gas from returning from the hose to the hard tube when the airbag is compressed after being in the inflated state, so that the airbag remains in the inflated state when compressed.

[0014] Preferably, the airflow guide assembly includes a blocking block, a torsion spring and a blocking plate, the blocking block is sealed and embedded in the hard tube, and a guide channel is penetrated through the blocking block, and the inner diameter of the guide channel gradually decreases from the hard tube to the soft tube along the axial direction of the hard tube; the blocking plate is hingedly arranged at one end of the blocking block close to the soft tube through a torsion spring, and when the torsion spring is in a natural state, the torsion spring drives the blocking plate to cover the open surface of one end of the guide channel, and after the air pump is started, the impact force of the compressed gas flowing in the hard tube is greater than the torsion force of the torsion spring.

[0015] The technical solution adopted by the present invention can achieve the following beneficial effects: 1. By using a combination of water pipes and expansion joints in the fault zone, the problems of concrete lining cracking and leakage caused by geological activities in conventional water tunnel structures are avoided. The design of the expansion joint allows the pipeline system to flexibly expand and contract during earthquakes or geological movements, reducing the risk of uneven force and deformation damage to the pipeline. The combination of the arc groove and the elastic cushion further enhances the elastic buffering effect of the structure, making the connection between the pipeline and the pier more flexible, thereby effectively responding to the impact of geological activities; 2. By optimizing the matching design of the airbag and the steel pipe and controlling the circumferential length of the airbag, the adaptability between the pipeline and the pier is improved. When inflated, the airbag can provide uniform elastic buffering force for the pipeline, reduce the impact of geological activities on the structure, and improve the stability and operation safety of the pipeline; 3. By setting 3 to 5 water pipe sections between the expansion joints, the expansion response of the pipeline is optimized, and the flexibility and buffering capacity of the system are enhanced. This design enables the pipeline to respond to external forces evenly over a long distance, avoiding local stress concentration, thereby extending the service life of the structure and ensuring the stability of the waterway system in complex geological environments; 4. The mobile inflation mechanism and airbag design enable the airbag to be quickly inflated and provide buffering force when extreme external forces such as earthquakes act. The combined buffering mechanism of the airbag and elastic cushion effectively reduces the damage to the pipeline and piers caused by external forces, while maintaining the overall stability of the waterway. This design ensures that the structure can smoothly transition and resume normal operation when sudden geological changes occur; 5. The inflation state and cushioning effect of the airbag can be precisely adjusted by using the coordinated work of the inflation component, the driving component and the moving component. By setting the moving slot and the branch slot, the airbag can be gradually filled and evenly distributed during the inflation process and the cushioning process, avoiding excessive or insufficient cushioning force, and further improving the response speed and reliability of the system; In summary, this application effectively improves the adaptability and stability of the water transfer tunnel structure in the active fault zone through precise structural design, flexible buffer mechanism and durable material application, providing an innovative solution in this field. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a schematic diagram of the structure of an embodiment of the present application; Figure 2 yes Figure 1 The front view in; Figure 3 yes Figure 1 A side cross-sectional view of Figure 4 It is a partial schematic diagram of the embodiment of the present application for showing the moving inflation mechanism when the airbag is in a flat folded state; Figure 5 It is a partial schematic diagram of the embodiment of the present application for showing the moving inflation mechanism when the airbag is in an inflated state; Figure 6 yes Figure 5 Enlarged view of part A in .

[0018] In the figure: 100, concrete lining; 110, lining deformation joint; 120, support groove; 130, moving groove; 200, concrete pier; 300, water supply steel pipe; 310, arc groove; 400, elastic cushion; 500, expansion joint; 600, mobile inflation mechanism; 610, inflation assembly; 611, inflation pump; 612, inflation tube; 612a, hose; 612b, hard tube; 620, drive assembly; 621, rodless cylinder; 622, connecting plate; 623, bracket; 624, transverse connecting rod; 630, moving assembly; 631, moving straight bar; 700, air bag; 800, frame; 810, track; 900, air flow guide assembly; 910, blocking block; 911, guide channel; 920, torsion spring; 930, blocking plate. DETAILED DESCRIPTION

[0019] To make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other implementation methods obtained by ordinary technicians in this field without creative work belong to the scope of protection of the present invention.

[0020] The terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0021] The following is combined with Figures 1 to 6, an active fault zone water conveyance tunnel structure provided by the present application is described in detail through specific embodiments and application scenarios.

[0022] A water conveyance tunnel structure in an active fault zone, such as Figure 1~Figure 3 As shown, the structure includes a concrete lining 100, a concrete pier 200, a water conveyance steel pipe 300, an elastic cushion layer 400 and an expansion joint 500; wherein the concrete lining 100 is arranged axially along the active fault zone of the mountain to form a water conveyance tunnel excavation chamber; illustratively, a plurality of concrete piers 200 are arranged at intervals on the bottom wall of the water conveyance tunnel excavation chamber along the length direction of the water conveyance tunnel excavation chamber, and an arc-shaped groove 310 is opened on the upper surface of the concrete pier 200.

[0023] Exemplarily, the water delivery steel pipe 300 is formed by axially connecting a plurality of water delivery pipe sections, and an arc-shaped groove 310 is provided on the concrete pier 200, and the water delivery pipe section is embedded in the arc-shaped groove 310. Further, embedding the water delivery pipe section means that the water delivery pipe section is placed in the arc-shaped groove 310, so that the concrete pier 200 serves as the installation base of the water delivery pipe section.

[0024] For example, the elastic cushion layer 400 is laid in the arc groove 310 and fits with the water pipe section, so that the water pipe section bears less pressure after being placed on the concrete pier 200. Further, the expansion joint 500 is coaxially connected between two adjacent water pipe sections, and the concrete lining 100 is provided with a plurality of lining deformation joints 110 along its length direction, and the lining deformation joints 110 are arranged opposite to the expansion joints 500 in the vertical direction.

[0025] On this basis, the concrete lining 100 is arranged axially along the active fault zone of the mountain to enhance the integrity and stability between the lining structure and the surrounding rock. At the same time, by setting a plurality of deformation joints in the concrete lining 100, the lining in the active fault zone area can better adapt to the displacement deformation caused by geological activities, thereby effectively reducing the crack expansion and leakage problems caused by stress concentration. In addition, the water supply steel pipe 300 is formed by axially connecting a plurality of pipe sections, and each pipe section is connected to the concrete pier 200 by setting an elastic cushion layer 400, thereby avoiding the destruction of the rigid connection between the steel pipe and the pier caused by geological activities. The use of the elastic cushion layer 400 can absorb and buffer the slight deformation caused by rock mass changes, ground stress redistribution, etc., thereby reducing the risk of structural damage and ensuring the normal operation of the waterway.

[0026] In addition, the arrangement of the expansion joint 500, especially the design of coaxial connection between adjacent water pipe sections, ensures that the steel pipe system can freely expand and contract during geological activities, adapt to the displacement changes caused by rock mass movement, and effectively avoid the entire water pipe 300 from breaking or leaking under uneven force. The arrangement of the expansion joint 500 can not only adapt to the overall deformation of the waterway, but also alleviate the pipeline damage caused by local stress concentration or water pressure changes, ensuring the long-term stable operation of the water pipeline. Most importantly, the lining deformation joint 110 and the steel pipe expansion joint 500 coincide in the vertical direction, so that the lining and the water pipe 300 can be deformed synchronously during geological activities, thereby effectively avoiding the structural damage caused by the asynchronous deformation of the concrete lining 100 and the water pipe 300, and further improving the safety and durability of the waterway. Through the above series of designs, the present invention can ensure the stability, impermeability and long-term safe operation of the water tunnel structure under the complex geological conditions of the active fault zone area, and solve many problems that the existing technology cannot effectively deal with in similar environments.

[0027] In some embodiments, in combination Figure 1~Figure 3 , the circumferential length of the cross section of the water pipe section falling into the arc groove 310 is 1 / 3 of the circumference of the cross section of the water pipe section. After such arrangement, by controlling the circumferential length of the arc groove 310, the water pipe section can be accurately embedded in the groove, avoiding excessive displacement of the pipeline under geological activities or external forces. This structural design not only improves the fit between the pipeline and the pier, but also ensures that the deformation of the pipeline is more uniform and stable when the waterway is subjected to external forces, thereby effectively reducing the stress concentration caused by uneven deformation. In addition, the optimized design of the circumferential length can avoid excessive displacement or dislocation of the pipeline during operation, which helps to extend the service life of the waterway and reduce the frequency of maintenance. By taking into account the fit between the pipeline and the groove in the design, the present invention effectively reduces the risk of pipeline dislocation, collision or excessive local pressure that may occur in the traditional water tunnel structure, thereby improving the overall stability of the structure and ensuring the long-term safety and reliable operation of the waterway under complex geological conditions.

[0028] In some embodiments, Figure 1~Figure 3 As shown, along the axis direction of the steel pipe, there are 3 to 5 water pipe sections between two adjacent expansion joints 500. On this basis, by setting a certain number of water pipe section intervals between expansion joints 500 and expansion joints 500, the entire pipeline system can have greater flexibility and buffering capacity under geological activities or external stress. Specifically, the setting of the pipe section interval can ensure that the expansion joint 500 can fully play its role in a longer pipe section, avoiding the concentration of local stress, so that the entire pipeline system can respond to geological movements or water pressure changes more evenly.

[0029] In addition, the rationality of the interval design helps to reduce the possibility of frequent occurrence of the expansion joint 500, thereby reducing the complexity and maintenance cost of the system. The range of action of each expansion joint 500 is appropriately expanded, ensuring that the pipeline can maintain stable expansion and contraction capabilities over a long distance, and preventing damage or failure of the pipeline due to local excessive deformation. Through this interval setting, the present invention effectively enhances the adaptability of the water pipeline system in complex geological environments, improves the safety of the waterway and the reliability of long-term operation, and ensures that the structure of the waterway can maintain good stability and deformation resistance when facing unstable factors such as fault zones.

[0030] For example, an inspection passage is provided in the water diversion tunnel excavation chamber, and construction personnel can enter the water diversion tunnel excavation chamber through the inspection passage.

[0031] In some embodiments, in combination Figure 2 , Figure 4 as well as Figure 5 The active fault zone water tunnel structure of the present application also includes a mobile inflation mechanism 600, and an airbag 700 is also provided between the arc-shaped groove 310 and the elastic cushion layer 400. The airbag 700 has a flat state and an inflated state under the action of the mobile inflation mechanism 600. When the airbag 700 is in the flat state, the airbag 700 does not apply an elastic buffering force to the water pipe section; when the airbag 700 is in the inflated state, the airbag 700 and the elastic cushion layer 400 jointly apply an elastic buffering force to the water pipe section.

[0032] On this basis, in the flat state, the airbag 700 does not apply elastic buffering force to the water pipe section, ensuring that the system is not subject to unnecessary interference under normal working conditions. When an earthquake or a large external force acts, the mobile inflation mechanism 600 can quickly inflate the airbag 700, so that the airbag 700 is inflated and acts together with the elastic cushion layer 400 to provide a stronger buffering effect for the water pipe section. The combination of the airbag 700 and the elastic cushion layer 400 in this inflated state can not only effectively disperse the external impact force, but also absorb and alleviate the vibration and pressure fluctuations caused by geological activities when external forces suddenly act, preventing excessive displacement or damage to the pipeline and structure. In this way, the water pipeline can better adapt to dynamic changes when facing sudden earthquakes or geological changes in active fault zones, ensuring the long-term stability and safety of the waterway.

[0033] In addition, the adjustability of the inflation mechanism of the airbag 700 enables the system to be dynamically adjusted according to the specific external force environment, thereby improving the adaptability and flexibility of the overall structure. Through reasonable inflation control of the airbag 700, the buffering force can be accurately adjusted, avoiding the waste of resources caused by excessive buffering, and also avoiding the potential risk of insufficient buffering. Therefore, the coordinated design of the mobile inflation mechanism 600 and the airbag 700 significantly improves the seismic resistance and deformation resistance of the active fault zone water tunnel structure under earthquakes and other dynamic external forces, effectively extending the service life of the structure and ensuring the safe operation of the waterway under extreme conditions.

[0034] In some embodiments, Figure 2 , Figure 4 as well as Figure 5 As shown, the mobile inflation mechanism 600 includes an inflation component 610, a driving component 620 and a moving component 630, wherein a plurality of branch grooves 120 are provided on the surface of the concrete pier 200 and located on the arc-shaped groove 310, and the airbags 700 in a flat state are simultaneously laid in the plurality of branch grooves 120. Further, a moving groove 130 is provided between adjacent branch grooves 120, and the moving component 630 is slidably provided in the moving groove 130, and the adjacent branch grooves 120 are separated by the moving component 630. When the moving component 630 is in the moving groove 130, part of the elastic cushion layer 400 abuts against the moving component 630, and part of the airbags 700 in a flat state are laid in the moving groove 130; further, the inflation component 610 is provided on one side of the concrete pier 200, and the inflation component 610 is used to fill the airbags 700 with air. Gas is introduced to switch the airbag 700 from a flat state to an inflated state; the driving component 620 is arranged on the other side of the concrete pier 200, and is used to drive the moving component 630 to completely move out of the moving groove 130; when the moving component 630 is moved out of the moving groove 130, the inflation component 610 introduces gas into the airbag 700 to switch the airbag 700 from a flat state to an inflated state, and the airbag 700 is gradually filled in the moving groove 130 and the support groove 120 and abuts against the elastic cushion layer 400.

[0035] On this basis, the coordinated work of the inflation component 610, the driving component 620 and the moving component 630 enables the inflation and elastic buffering of the airbag 700 to be accurately started when needed, and in normal operation, the airbag 700 is in a flat state, reducing unnecessary interference and energy consumption. The airbag 700 is laid in a plurality of branch grooves 120, and the design of the moving component 630 sliding in the moving groove 130 enables the entire airbag 700 system to be accurately controlled as needed. Specifically, when the external force causes the system to respond, the inflation component 610 can pass gas into the airbag 700, so that the airbag 700 quickly switches from the flat state to the inflation state. In this process, the airbag 700 is gradually filled in the branch groove 120 and the moving groove 130, gradually unfolded and contacted with the elastic cushion layer 400, providing a smooth buffering effect for the water pipe section. This design ensures the gradualness of the inflation process of the airbag 700, so that the buffering force can be smoothly transitioned without causing abrupt impact on the structure.

[0036] In addition, the function of the moving assembly 630 enables the system to adjust the inflation state of the airbag 700 when necessary, and to precisely regulate the forces of the elastic cushion layer 400 and the airbag 700 according to the specific deformation requirements of the pipeline. The configuration of the driving assembly 620 enables the moving assembly 630 to completely move out of the moving slot 130 at a critical moment, thereby providing sufficient space for the inflation of the airbag 700 and ensuring that the inflation process of the airbag 700 is not hindered. Through this more sophisticated control mechanism, the entire system can always maintain a stable buffering effect in the face of extreme geological activities such as earthquakes and fault zone movements, effectively avoiding structural damage or uneven deformation.

[0037] In summary, by combining the inflation component 610, the drive component 620 and the moving component 630, the precise adjustment of the inflation process of the airbag 700 and the efficient coordination of the buffering effect are achieved. This design can automatically and flexibly respond to changes when the water conveyance tunnel structure faces external forces such as geological activities, significantly improving the safety, seismic resistance and long-term stability of the waterway structure, and ensuring its reliable operation under complex geological conditions.

[0038] In some embodiments, in combination Figure 2 , Figure 4 as well as Figure 5The moving component 630 includes a moving straight bar 631, the surface of the moving straight bar 631 is covered with a polytetrafluoroethylene layer, and the upper surface of the airbag 700 in a flat state and the lower surface of the elastic cushion layer 400 are also covered with a polytetrafluoroethylene layer. In this way, the polytetrafluoroethylene layer has an extremely low friction coefficient, which enables the moving component 630 to move more smoothly during the sliding process, reducing movement obstruction or wear caused by excessive friction resistance. In particular, when the airbag 700 is in a flat state, the application of the polytetrafluoroethylene layer ensures that the moving straight bar 631 can slide relative to the airbag 700 in the moving groove 130, thereby avoiding damage or deformation of the airbag 700 due to excessive friction.

[0039] In addition, the corrosion resistance and high temperature resistance of the PTFE layer enable the design to operate stably in harsh environments. Whether in high humidity, extreme temperatures or water-containing environments, the PTFE layer can effectively prevent corrosion or aging of system components, extending the service life of the entire water tunnel structure. At the same time, the anti-fouling and self-lubricating properties of PTFE also help reduce maintenance frequency and repair costs, ensuring that the system always maintains low friction and excellent performance during long-term operation. Through this structural optimization, the overall efficiency and reliability of the active fault zone water tunnel structure are further improved.

[0040] In some embodiments, Figure 2 , Figure 4 as well as Figure 5 As shown, the driving assembly 620 includes a rodless cylinder 621, a connecting plate 622, a bracket 623 and a transverse connecting rod 624, wherein the rodless cylinder 621 is installed in the excavated cave chamber of the water conveyance tunnel and is located on one side of the concrete pier 200, the length direction of the rodless cylinder 621 is consistent with the length direction of the movable groove 130, the connecting plate 622 is arranged on the movable piston rod of the rodless cylinder 621, and the bracket 623 is provided with multiple groups on the connecting plate 622, and the transverse connecting rod 624 is horizontally arranged at the top of the bracket 623 and is coaxially connected to one end of the movable straight bar 631; further, a frame 800 is also provided between the rodless cylinder 621 and the concrete pier 200, and a track 810 is provided on the top of the frame 800, and the track 810 is communicated with the movable groove 130, so that the movable straight bar 631 can completely slide out of the movable groove 130 and move into the track 810. Exemplarily, a slide groove is provided in the track 810 along the length direction of the track 810 , and the slide groove and the moving groove 130 are on the same horizontal line and are connected.

[0041] After such setting, the rodless cylinder 621 is started to allow the connecting plate 622 to move horizontally away from the concrete pier 200, so that the bracket 623 and the transverse connecting rod 624 are synchronously moved horizontally away from the concrete pier 200. At this time, the moving straight bar 631 will be pulled from the moving groove 130 to the sliding groove until the moving straight bar 631 is completely moved out of the moving groove 130 and is in the sliding groove, thereby achieving a convenient driving effect.

[0042] In some embodiments, reference Figure 2 , Figure 4 as well as Figure 5 The inflation component 610 includes an inflation pump 611 and an inflation tube 612. The inflation pump 611 is placed on one side of the concrete pier 200, and the inflation tube 612 is installed at the pump outlet end of the inflation pump 611. The end of the inflation tube 612 away from the inflation pump 611 is connected to the airbag 700; wherein, in the process of the moving straight bar 631 moving from the moving groove 130 to the straight track 810, the inflation pump 611 is started synchronously, so that the part of the airbag 700 located in the moving groove 130 is inflated synchronously while the moving straight bar 631 moves.

[0043] After such arrangement, during the process of the moving straight bar 631 moving from the moving groove 130 to the sliding groove, the air pump 611 is started synchronously, so that the compressed gas enters the airbag 700 through the air inflation tube 612, and then the airbag 700 gradually changes from the flat state to the inflated state. At the same time, during this process, the airbag 700 will preferentially inflate the part that is not pressed by the moving straight bar 631, so that the inflated part of the airbag 700 can be inflated synchronously with the movement of the moving straight bar 631, so that after the moving straight bar 631 is completely moved out of the moving groove 130, the airbag 700 can also be in a fully inflated state and bear the pressure of the water pipe section together with the elastic cushion layer 400.

[0044] In some embodiments, in combination Figure 5 , Figure 6 The inflation tube 612 includes a connected hose 612a and a hard tube 612b, the hose 612a is connected to the airbag 700, and the hard tube 612b is connected to the pump outlet end of the inflation pump 611; further, an airflow guide component 900 is provided in the hard tube 612b, and the airflow guide component 900 can drive the compressed gas to normally enter the hose 612a from the hard tube 612b when the inflation pump 611 is started, and prevent the compressed gas from returning from the hose 612a to the hard tube 612b when the airbag 700 is compressed after being in the inflated state, so that the airbag 700 remains in the inflated state when it is compressed.

[0045] Exemplarily, the airflow guide assembly 900 includes a blocking block 910, a torsion spring 920 and a blocking plate 930. The blocking block 910 is sealed and embedded in the hard tube 612b, and a guide channel 911 is opened through the blocking block 910. Along the axial direction of the hard tube 612b, the inner diameter of the guide channel 911 gradually decreases from the hard tube 612b to the hose 612a; further, the blocking plate 930 is hinged to one end of the blocking block 910 close to the hose 612a through the torsion spring 920, and when the torsion spring 920 is in a natural state, the torsion spring 920 drives the blocking plate 930 to cover the open surface of one end of the guide channel 911, and after the air pump 611 is started, the impact force of the compressed gas flowing in the hard tube 612b is greater than the torsion of the torsion spring 920.

[0046] After such arrangement, when the air pump 611 is started, the compressed gas generated by the air pump 611 will flow from the hard tube 612b to the soft tube 612a. In this process, when the compressed gas in the hard tube 612b enters the guide channel 911, the compressed gas will overcome the torsion of the torsion spring 920 in the guide channel 911 and push open the blocking plate 930, so that the compressed gas can normally enter the soft tube 612a from the hard tube 612b and finally enter the airbag 700. When the airbag 700 is in an inflated state, the compressed gas in the airbag 700 will be compressed by the water pipe section and move from the soft tube 612a to the hard tube 612b. After the air pump 611 stops running, the torsion spring 920 will drive the blocking plate 930 to block the opening of one end of the guide channel 911 again under the action of its own torque, so that the guide channel 911 is blocked. At this time, the compressed gas cannot flow back from the hose 612a to the hard tube 612b, so that the airbag 700 can be maintained in an inflated state to a certain extent and is not easy to deflate, thereby improving the cushioning performance of the airbag 700.

[0047] It should be noted that, in this article, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the existence of other identical elements in the process, method, article or device including the element.

[0048] In addition, it should be noted that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in a reverse order according to the functions involved. For example, the described methods may be performed in an order different from that described, and various steps may be added, omitted, or combined. In addition, features described with reference to certain examples may be combined in other examples.

[0049] The above description is only a specific implementation mode of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A water conveyance tunnel structure in an active fault zone, characterized in that: include: Concrete lining (100) is arranged axially along the active fault zone of the mountain to form a water diversion tunnel excavation chamber; A plurality of concrete buttresses (200) are arranged at intervals on the bottom wall of the water diversion tunnel excavation chamber along the length direction of the water diversion tunnel excavation chamber; A water delivery steel pipe (300), wherein the water delivery steel pipe (300) is formed by axially connecting a plurality of water delivery pipe sections, an arc-shaped groove (310) is provided on the concrete pier (200), and the water delivery pipe section is embedded in the arc-shaped groove (310); An elastic cushion layer (400), the elastic cushion layer (400) being laid in the arc-shaped groove (310) and being in contact with the water delivery pipe joint; The expansion joint (500) is coaxially connected between two adjacent water delivery pipe sections; wherein: The concrete lining (100) is provided with a plurality of lining deformation joints (110) along its length direction, and the lining deformation joints (110) are arranged opposite to the expansion joints (500) in the vertical direction.

2. The active fault zone water conveyance tunnel structure according to claim 1, characterized in that: The circumferential length of the cross section of the water delivery pipe section that falls into the arc-shaped groove (310) is 1 / 3 of the circumferential length of the cross section of the water delivery pipe section.

3. The active fault zone water conveyance tunnel structure according to claim 1, characterized in that: Along the axial direction of the steel pipe, 3 to 5 water delivery pipe sections are spaced between two adjacent expansion joints (500).

4. The active fault zone water conveyance tunnel structure according to any one of claims 1 to 3, characterized in that: It also includes a movable inflation mechanism (600), and an airbag (700) is provided between the arc-shaped groove (310) and the elastic cushion layer (400). The airbag (700) has a flattened state and an inflated state under the action of the movable inflation mechanism (600), wherein: When the airbag (700) is in a flat state, the airbag (700) does not exert an elastic buffer force on the water delivery pipe joint; When the airbag (700) is in an inflated state, the airbag (700) and the elastic cushion layer (400) jointly exert an elastic buffering force on the water delivery pipe joint.

5. The active fault zone water conveyance tunnel structure according to claim 4, characterized in that: The mobile inflation mechanism (600) comprises an inflation component (610), a driving component (620) and a moving component (630), wherein: A plurality of branch grooves (120) are provided at intervals on the surface of the concrete pier (200) and located on the arc-shaped groove (310), and the air bags (700) in a flat state are laid in the plurality of branch grooves (120) at the same time; A movable groove (130) is provided between adjacent branch grooves (120), the movable assembly (630) is slidably arranged in the movable groove (130), and adjacent branch grooves (120) are separated by the movable assembly (630); when the movable assembly (630) is in the movable groove (130), part of the elastic cushion layer (400) is in contact with the movable assembly (630), and part of the airbag (700) in a flat state is laid in the movable groove (130); The inflation component (610) is disposed on one side of the concrete pier (200), and the inflation component (610) is used to introduce gas into the airbag (700) so as to switch the airbag (700) from a flat state to an inflated state; The driving assembly (620) is arranged on the other side of the concrete pier (200) and is used to drive the moving assembly (630) to completely move out of the moving groove (130); When the moving component (630) is moved out of the moving groove (130), the inflation component (610) introduces gas into the airbag (700) to switch the airbag (700) from a flat state to an inflated state, and the airbag (700) is gradually filled in the moving groove (130) and the branch groove (120) and abuts against the elastic cushion layer (400).

6. The active fault zone water conveyance tunnel structure according to claim 5, characterized in that: The moving component (630) comprises a moving straight bar (631), the surface of the moving straight bar (631) is covered with a polytetrafluoroethylene layer, and the upper surface of the airbag (700) in a flat state and the lower surface of the elastic cushion layer (400) are also covered with a polytetrafluoroethylene layer.

7. The active fault zone water conveyance tunnel structure according to claim 6, characterized in that: The driving assembly (620) comprises a rodless cylinder (621), a connecting plate (622), a bracket (623) and a transverse connecting rod (624), wherein: The rodless cylinder (621) is installed in the excavated chamber of the water delivery tunnel and is located on one side of the concrete pier (200); the length direction of the rodless cylinder (621) is consistent with the length direction of the movable groove (130); the connecting plate (622) is provided on the movable piston rod of the rodless cylinder (621); the bracket (623) is provided with a plurality of groups on the connecting plate (622); the transverse connecting rod (624) is horizontally provided on the top end of the bracket (623) and is coaxially connected to one end of the movable straight bar (631); A frame (800) is further provided between the rodless cylinder (621) and the concrete pier (200), and a track (810) is provided on the top of the frame (800). The track (810) is connected to the movable groove (130) so that the movable straight bar (631) can completely slide out of the movable groove (130) and move into the track (810).

8. The active fault zone water conveyance tunnel structure according to claim 7, characterized in that: The inflation assembly (610) comprises an air pump (611) and an air tube (612), wherein the air pump (611) is arranged on one side of the concrete pier (200), and the air tube (612) is installed at the pump outlet end of the air pump (611), and the end of the air tube (612) away from the air pump (611) is connected to the air bag (700); wherein: During the process of the movable straight bar (631) moving from the movable groove (130) to the track (810), the inflation pump (611) is synchronously started, so that the part of the airbag (700) located in the movable groove (130) is inflated synchronously with the movement of the movable straight bar (631).

9. The active fault zone water conveyance tunnel structure according to claim 8, characterized in that: The inflation tube (612) comprises a soft tube (612a) and a hard tube (612b) which are connected to each other, the soft tube (612a) being connected to the air bag (700), and the hard tube (612b) being connected to the pump outlet end of the inflation pump (611); An airflow guide component (900) is provided in the hard tube (612b). The airflow guide component (900) can drive the compressed gas to flow normally from the hard tube (612b) into the soft tube (612a) when the inflation pump (611) is started, and prevent the compressed gas from returning from the soft tube (612a) to the hard tube (612b) when the airbag (700) is in an inflated state and is compressed, so that the airbag (700) remains in an inflated state when compressed.

10. The active fault zone water conveyance tunnel structure according to claim 9, characterized in that: The airflow guide assembly (900) comprises a blocking block (910), a torsion spring (920) and a blocking plate (930); the blocking block (910) is sealed and embedded in the hard tube (612b); a guide channel (911) is provided through the blocking block (910); along the axial direction of the hard tube (612b), the inner diameter of the guide channel (911) gradually decreases in the direction from the hard tube (612b) to the soft tube (612a); The blocking plate (930) is hingedly connected to one end of the blocking block (910) close to the hose (612a) via a torsion spring (920), and when the torsion spring (920) is in a natural state, the torsion spring (920) drives the blocking plate (930) to cover the open surface of one end of the guide channel (911), and after the air pump (611) is started, the impact force of the compressed gas flowing in the hard tube (612b) is greater than the torsion force of the torsion spring (920).

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