Construction method of mechanical method in connecting channel pump room
By reserving detachable segments and setting up sealed chambers in the connecting passage, the problems of small capacity, high cost and high risk in the construction of mechanical connecting passage pump rooms were solved, achieving safe and economical pump room construction results.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- CHINA RAILWAY ENGINEERING EQUIPMENT GROUP CO LTD
- Filing Date
- 2024-03-13
- Publication Date
- 2026-07-21
Smart Images
Figure CN117905485B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of construction technology for pump rooms in connecting passageways, and in particular to a mechanical method for constructing pump rooms within connecting passageways. Background Technology
[0002] The connecting passage pump room is an important component of the connecting passage construction in subway tunnel engineering.
[0003] In recent years, with the development of science and technology, research and application of mechanical connection channels have gradually emerged, making the construction of mechanical connection channels increasingly popular. However, there are still many controversies surrounding the construction of pump rooms using existing mechanical connection channels.
[0004] The existing mechanical connection tunnel pump rooms are set up within the main line section, breaking the traditional practice of placing pump rooms at the bottom of the connection tunnel. For example, the invention patent application CN 112228088 A published by Beijing Construction Engineering Civil Engineering Co., Ltd. on January 15, 2021, entitled "A Construction Method for a Vertical Shaft Starting Device for Top-Down Pipe Jacking Construction in a Shield Tunnel," describes a method that transports the pipe jacking machine and its supporting trolley to the vertical shaft construction site, adjusts the initial position, adjusts the segment support system to the working position, removes the tunnel guide rails at the bottom of the equipment, uses a crane to lower the recyclable pipe jacking machine to a position where it can directly cut the composite segments, welds the starting steel sleeve, fills the space between the shield tail brushes with grease, and hoists the pipe segments to the construction position every time the pipe jacking machine advances a certain distance. This method uses vertical equipment to cut the pre-reserved pump room portal segments and uses the pipe jacking construction method to construct the vertical pump room, breaking the traditional practice of placing pump rooms at the bottom of the connection tunnel. However, it presents certain problems in terms of operation, maintenance, and construction costs within the tunnel section.
[0005] Currently, there are two main types of pump stations for mechanical connection channels: those located within the main track bed and those located beneath the main tunnel segments. The first type has a smaller capacity, making it difficult to meet usage needs, and the pumps are prone to burnout due to the low water level. The second type has a higher cost and is less economical.
[0006] In addition, if a pumping station is to be built within the mechanical connection channel, the significant burial depth poses a substantial risk if local soil reinforcement and tunneling methods are used, especially in soft soil areas where insufficient reinforcement could lead to water or sand inrush and safety accidents. In such cases, mechanical construction methods are far safer.
[0007] The above reasons directly affect the use of mechanical connection channel pump stations, and the current market application of mechanical connection channels is constrained to some extent by the construction of pump stations.
[0008] It should be noted that the above technical information is intended only to enhance the understanding of the overall background technology of the present invention, and should not be regarded as an admission or in any way implying that the above technical information constitutes prior art known to those skilled in the art. Summary of the Invention
[0009] To address the shortcomings in the aforementioned background technology, this invention proposes a mechanical method for constructing pump rooms within connecting channels, thus solving the technical problem that existing mechanical connecting channels cannot be constructed using mechanical pump rooms.
[0010] The technical solution of this application is as follows: A method for constructing a mechanical pumping station within a connecting passageway includes the following steps: Step 1: Reserve removable pipe segments at the pump room location; Step 2: Set up the launching sleeve around the tunnel lining segments from Step 1; Step 3: Set up a sealed chamber around the launching sleeve from Step 2, and install a segment removal device; Step 4: Remove the segments from Step 1 using the segment removal device, and insert the portal sealing plate at the bottom of the sealed chamber; Step 5: Remove the sealed chamber and segment removal device, while retaining the sealed portal plate; Step 6: Install the main unit and lifting device along the starting sleeve. After assembling and debugging the main unit and lifting device, pull out the tunnel door sealing plate. Step 7: Excavate the soil using the main unit to reserve space for segment assembly; Step 8: The main excavator excavates to the bottom elevation, and a steel casing is pressed from the top of the starting sleeve to the excavation face; Step 9: Pull the main unit and pump room segments upwards using steel strands, leaving space for the sealing layer, and pour the sealing layer; Step 10: Dismantle the main unit and proceed with the construction of the base plate; Step 11: Unlock the steel strands and remove the pressure lifting device; Step 12: Replace the back wall of the tunnel segment with grout through the reserved grouting holes. After the grout has solidified to the required strength, remove the remaining equipment components and structures.
[0011] In a preferred embodiment, the segments in the first step are steel segments, and a soil micro-reinforcement structure is set around the segments in the first step.
[0012] In a preferred embodiment, the segment removal device is installed at the top of the sealed chamber in the third step.
[0013] As a preferred embodiment, the liquid filling the sealed chamber is pressurized before proceeding to the fourth step.
[0014] In one preferred embodiment, the sealed chamber is a cylindrical structure, a cuboid structure, a cube structure, or a polygonal prism structure.
[0015] In a preferred embodiment, a sealing port is provided at the bottom of the sealed chamber. The sealing port is always in a sealed state. That is, before the portal sealing plate is inserted, it is sealed and pressure is maintained by a self-sealing structure. After the portal sealing plate is inserted, the sealing port and the portal sealing plate are sealed together.
[0016] In a preferred embodiment, when the segment is lifted by the segment removal device, the height of the sealing socket is lower than the height of the suspended segment. After the portal sealing plate is inserted into the sealing socket, the sealing chamber is divided into upper and lower sealing cavities. The upper sealing cavity can be removed at any time, and the lower sealing cavity is used for grouting reinforcement.
[0017] In a preferred embodiment, the pressure-lifting device includes a steel strand and a sinking cylinder. After the main unit is assembled and debugged, the position of the main unit is locked by the steel strand. The tunnel portal sealing plate is pulled out while the launching sleeve is sealed. At the same time, a certain pressure is maintained inside the launching sleeve to provide conditions for the main unit to carry out pressurized construction.
[0018] In a preferred embodiment, in step seven, the steel strands from step six are unlocked, and the pump house segments are pumped to the main unit via the sinking hydraulic cylinder.
[0019] In a preferred embodiment, in the seventh step, the main unit discharges the excavated soil from the excavation process through the mud circulation pipeline; and grouting is performed behind the tunnel segment walls to reduce friction through the reserved grouting holes of the tunnel segments.
[0020] Compared with existing technologies, the technical solution provided by this invention enables the construction of mechanical pumping stations within connecting tunnels. As a result, the objective of constructing mechanical pumping stations within connecting tunnels is achieved, significantly increasing the market utilization rate of mechanical connecting tunnels. This invention avoids placing mechanical connecting tunnel pumping stations within the main line track bed and below the main line segments, resulting in pumping stations with large capacity, high water levels, low cost, and high economic efficiency. Furthermore, the technical solution provided by this invention avoids the use of traditional local soil reinforcement or cut-and-cover methods for constructing pumping stations within mechanical connecting tunnels, thus avoiding construction risks such as water and sand inrush. Attached Figure Description
[0021] To more clearly illustrate the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0022] Figure 1 This is a schematic diagram of the first step in the construction method of the mechanical pump station within the connecting passage.
[0023] Figure 2 This is a schematic diagram of the second step in the construction method of the mechanical pumping station within the connecting passage.
[0024] Figure 3 This is a schematic diagram of the third step in the mechanical pump station construction method within the connecting passage.
[0025] Figure 4 This is a schematic diagram of the fourth step in the mechanical pump station construction method within the connecting passage.
[0026] Figure 5 This is a schematic diagram of the fifth step in the mechanical pump station construction method within the connecting passage.
[0027] Figure 6 This is a schematic diagram of the sixth step in the mechanical pump station construction method within the connecting passage.
[0028] Figure 7 This is a flowchart illustrating the seventh step of the mechanical pump station construction method within the connecting passageway.
[0029] Figure 8 This is a schematic diagram of the eighth step in the mechanical pump station construction method within the connecting passage.
[0030] Figure 9 This is a schematic diagram of the ninth step in the mechanical pump station construction method within the connecting passage.
[0031] Figure 10 This is a schematic diagram of the tenth step of the mechanical pump station construction method within the connecting passage.
[0032] Figure 11 This is a schematic diagram of the eleventh step of the mechanical pump station construction method within the connecting passage.
[0033] Figure 12 This is a schematic diagram of the twelfth step of the mechanical pump station construction method within the connecting passage.
[0034] Explanation of icon numbers: Segment 1; Soil micro-reinforcement structure 2; Starting sleeve 3; Sealed compartment 4; Segment removal device 5; 6. Doorway sealing plate; Host 7; Pressure boosting device 8; 9. Steel strand; 10 sinking hydraulic cylinders; Pump station segment 11; 12 grouting holes are reserved; 13 steel casings; 14-layer back cover; Base plate 15; Mud circulation pipeline 16. Detailed Implementation
[0035] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the core concept of the present invention and the following embodiments, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0036] These embodiments are provided to make the application thorough and complete, and to fully express the scope of the application to those skilled in the art. It should be noted that, unless otherwise specifically stated, the relative arrangement of components and steps, material composition, numerical expressions, and values illustrated in these embodiments should be interpreted as merely exemplary and not as limiting.
[0037] It should be noted that, in the description of this application, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," and "outer," etc., indicating orientation or positional relationship, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.
[0038] Furthermore, the terms "first," "second," and similar terms used in this application do not indicate any order, quantity, or importance, but are merely used to distinguish different parts. "Vertical" is not strictly vertical, but within the permissible margin of error. "Parallel" is not strictly parallel, but within the permissible margin of error. Terms such as "including" or "contains" mean that the element preceding the word encompasses the element listed after it, and do not exclude the possibility of encompassing other elements as well.
[0039] It should also be noted that, in the description of this application, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linkage" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application depending on the specific circumstances. When a specific device is described as being located between a first device and a second device, an intermediary device may or may not be present between the specific device and the first or second device.
[0040] All terms used in this application have the same meaning as understood by one of ordinary skill in the art to which this application pertains, unless otherwise specifically defined. It should also be understood that terms defined in general dictionaries should be interpreted as having meanings consistent with their meanings in the context of the relevant art, and not as idealized or highly formalized, unless expressly defined herein.
[0041] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, they should be considered part of the specification.
[0042] A method for constructing a mechanical pumping station within a connecting passageway includes the following steps: Step 1: As Figure 1 As shown, a removable pipe segment 1 is reserved at the pump room location; Step 2: As Figure 2 As shown, a launching sleeve 3 is set around the segment 1 in the first step; Step 3: As Figure 3 As shown, a sealing chamber 4 is set around the launching sleeve 3 in the second step, and a segment removal device 5 is set. Step 4: As Figure 4 As shown, the segment 1 in the first step is removed by the segment removal device 5, and the hole sealing plate 6 is inserted at the bottom of the sealed chamber 4; Step 5: As Figure 5 As shown, the sealed chamber 4 and the segment removal device 5 are removed, while the sealed door sealing plate 6 is retained. Step 6: As Figure 6 As shown, the main unit 7 and the pressure lifting device 8 are installed along the starting sleeve 3. After the main unit 7 and the pressure lifting device 8 are assembled and debugged, the hole door sealing plate 6 is pulled out. Step 7: As Figure 7 As shown, the host 7 is used to excavate the soil and reserve space for the segment assembly; Step 8: As Figure 8As shown, the main excavator 7 excavates to the bottom elevation, and the steel casing 13 is pressed from the top of the starting sleeve 3 to the excavation face; Step 9: As Figure 9 As shown, the main unit 1 and the pump room segment 11 are lifted upward by the steel strand 9, leaving space for the sealing layer, and the sealing layer 14 is poured. Step 10: As Figure 10 As shown, the main unit 7 is removed, and the construction base plate 15 is constructed. Step 11: As Figure 11 As shown, unlock the steel strand 9 and remove the pressure lifting device 8; Step 12: As Figure 12 As shown, grout is replaced behind the pipe segment wall through the reserved grouting hole 12. After the grout solidification strength reaches the standard, the remaining equipment parts and structures are removed.
[0043] Based on the above implementation method, as a preferred implementation method of mechanical pump room construction in the connecting channel, the pipe segment 1 in the first step is a steel pipe segment, and a soil micro-reinforcement structure 2 is set around the pipe segment 1 in the first step.
[0044] Based on the above implementation method, as a preferred implementation method of mechanical pump room construction in the connecting channel, the segment removal device 5 is installed at the top of the sealed chamber 4 in the third step.
[0045] Based on the above implementation method, as a preferred implementation method of mechanical pump room construction in the connecting channel, before proceeding to the fourth step, the liquid filling the sealed chamber 4 is pressurized.
[0046] Based on the above embodiments, as a preferred embodiment of the mechanical pump room construction method in the connecting channel, the sealed chamber 4 is a cylindrical structure, a cuboid structure, a cube structure, or a polygonal prism structure.
[0047] Based on the above implementation method, as a preferred implementation method of mechanical pump room construction in the connecting passage, a sealing port is provided at the bottom of the sealing chamber 4. The sealing port is always in a sealed state, that is, it is sealed and pressure maintained by a self-sealing structure before the portal sealing plate 6 is inserted. After the portal sealing plate 6 is inserted, the sealing port and the portal sealing plate 6 are sealed together.
[0048] Based on the above implementation method, as a preferred implementation method of mechanical pump room construction in the connecting channel, when the segment 1 is lifted by the segment removal device 5, the height of the sealing socket is lower than the height of the suspended segment 1. After the portal sealing plate 6 is inserted into the sealing socket, the sealing chamber 4 is divided into upper and lower sealing cavities. The upper sealing cavity can be cut off at any time, and the lower sealing cavity is used for grouting reinforcement.
[0049] Based on the above implementation method, as a preferred implementation method of mechanical pump room construction in the connecting channel, the pressure lifting device 8 includes a steel strand 9 and a sinking cylinder 10. After the main unit 7 is assembled and debugged, the position of the main unit 7 is locked by the steel strand 9. The tunnel portal sealing plate 6 is pulled out under the sealed state of the starting sleeve 3. At the same time, a certain pressure is maintained inside the starting sleeve 3 to provide conditions for the main unit 7 to be pressurized for construction.
[0050] Based on the above implementation method, as a preferred implementation method of mechanical pump room construction in the connecting channel, in the seventh step, the steel strand 9 in the sixth step is unlocked, and the pump room pipe segment 11 is pressed and connected to the main unit 7 by the sinking oil cylinder 10.
[0051] Based on the above implementation method, as a preferred implementation method of mechanical pump room construction in the connecting channel, in the seventh step, the main unit 7 discharges the excavated soil during the excavation process through the mud circulation pipeline 16; and performs grouting and friction reduction behind the pipe segment wall through the reserved grouting hole 12 of the pipe segment.
[0052] As a preferred embodiment of the mechanical pump station construction method within the connecting passage, the construction measures and devices in this embodiment include: Segment 1 is a steel segment, which is easy to remove and provides conditions for the main excavation of the pump house by the main machine; 2. Soil micro-reinforcement structure to reduce the risk of external water and soil rushing into the channel after the steel pipe segments at the pump house location are removed; The starting sleeve 3 provides conditions for the equipment to excavate in a closed environment; Sealed chamber 4 is used to remove steel pipe segments in a pressurized environment to prevent ground water and soil from rushing into the tunnel under pressure. The segment removal device 5 is used to remove steel segments inside a pressurized environment. Portal sealing plate 6 is used to temporarily seal the pump room portal after the steel pipe segments are removed, to prevent water and soil from rushing into the tunnel under pressure. Main unit 7 is used for pump room excavation and slag removal; The pressure lifting device 8 is used for pressing and lifting the main unit and segments; Steel strand 9 is used for lifting and locking the main unit and tunnel segments; The sinking cylinder 10 is used to pressurize and convey the main unit and tunnel segments. Pump house segment 11 is used in the pump house structure to facilitate assembly and jacking; 12 grouting holes are reserved for friction reduction during the segment sinking process and for grout replacement behind the segment arm; Steel casing 13 is used for support of the excavation face; Sealing layer 14 is used for sealing and water-stopping the bottom of the excavation face; Base plate 15, used as the base plate for the pump room structure; Mud circulation pipeline 16 is used for muck removal during the main excavation process.
[0053] The technical principle of this embodiment is as follows: The pump room excavation opening is opened by removing the reserved steel pipe segments in a closed environment; a simplified and miniaturized main unit is used to vertically excavate the shaft. During the excavation process, measures such as steel strand lifting, sinking-assisted hydraulic cylinder pressure delivery, and grouting through reserved grouting holes to reduce friction are used to control the sinking of the shaft; after excavation to the design elevation, a steel casing is inserted to the excavation face, and the main unit and pipe segments are lifted by steel strands to reserve space for bottom sealing, and the shaft is sealed.
[0054] The specific construction steps in this embodiment are as follows: Step 1: As Figure 1 As shown, a removable segment 1 is reserved at the pump house location, meaning that the removable segment 1 is used for lining the connecting tunnel during the construction of the connecting passage, so that the pump house can be constructed in the connecting passage later and the segment 1 can be easily removed; a soil micro-reinforcement structure 2 is installed at the pump house location to reduce the risk of water inrush.
[0055] Step 2: As Figure 2 As shown, a starting sleeve 3 is set around the segment 1 in the first step to prepare for the subsequent excavation of the equipment in a closed environment.
[0056] Step 3: As Figure 3 As shown, a segment removal device 5 and a sealing chamber 4 are set around the segment 1 in the first step. Liquid is injected into the sealing chamber to maintain pressure. Under pressure, the segment 1 is removed by the segment removal device 5, while balancing the external water and soil pressure. As for the shape of the sealing chamber 4, there are many options, but a rectangular structure is preferred.
[0057] Step 4: As Figure 4 As shown, after the segment removal device 5 lifts the segment 1, a portal sealing plate 6, which seals against the sealed chamber 4, is inserted below it. Specifically, a sealing port is located at the bottom of the sealed chamber 4, and this port is always sealed. Before the portal sealing plate 6 is inserted, a self-sealing structure maintains pressure, and after insertion, it seals against the portal sealing plate 6. When the segment 1 is lifted by the segment removal device 5, the height of the sealing port is lower than the height of the suspended segment 1. After inserting the portal sealing plate 6 into the sealing port, the sealed chamber 4 is divided into upper and lower sealed cavities. The upper sealed cavity can be removed at any time, and the lower sealed cavity is used for grouting reinforcement.
[0058] Step 5: As Figure 5 As shown, after the tunnel portal sealing plate 6 is sealed, the segment 1, sealing chamber 4, segment removal device 5, etc. are removed.
[0059] Step 6: As Figure 6As shown, after removing the segment 1 through steps 1 to 5, the main excavation equipment 7 and the pressure lifting device 8 are installed and debugged. The pressure lifting device 8 includes steel strands 9 and sinking cylinders 10. There are various options for the form of the main equipment 7 and the pressure lifting device 8. After the main equipment 7 is assembled and debugged, the position of the main equipment is locked by the steel strands 9. The tunnel portal sealing plate 6 is pulled out under the sealed state of the launching sleeve 3. At the same time, a certain pressure is maintained inside the launching sleeve 3 to provide conditions for the main equipment 7 to carry out pressurized construction.
[0060] Step 7: As Figure 7 As shown, the host 7 excavates the soil to reserve space for the segment assembly, assembles the segment 11, unlocks the steel strand 9 in step 6, and presses the segment 11 and the host 7 through the sinking cylinder 10; the host 7 is equipped with a mud circulation pipeline 16 to discharge the excavated soil during the excavation process through mud circulation; the segment wall is grouted and friction is reduced through the reserved grouting hole 12 to facilitate the sinking of the segment.
[0061] Step 8: As Figure 8 As shown, the main excavator 7 excavates to the bottom elevation and locks the main excavator and segment 11 with steel strands 9; at the same time, steel casing 13 is pressed to the excavation face from the top of the starting sleeve.
[0062] Step 9: As Figure 9 As shown, the main unit 7 and the segment 11 are lifted upward by the steel strand 9, leaving space for the sealing layer, and the sealing layer 14 is poured.
[0063] Step 10: As Figure 10 As shown, remove the main unit 7 and construct the base plate 15.
[0064] Step 11: As Figure 11 As shown, unlock the steel strand 9 and remove the pressure lifting device 8.
[0065] Step 12: As Figure 12 As shown, grout is replaced behind the pipe segment wall through the grouting hole 12. After the grout solidification strength reaches the standard, the remaining equipment parts and structures are removed.
[0066] In practical applications, the sealing requirements of this method vary depending on the geological formation. Therefore, the sealing settings should be adjusted according to the soil strength and water pressure conditions.
[0067] All aspects not detailed in this invention are conventional technical means known to those skilled in the art.
[0068] The above content shows and describes the basic principles, main features, and beneficial effects of the present invention. The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.
Claims
1. A method for constructing a mechanical pumping station within a connecting passageway, characterized in that... Includes the following steps: Step 1: Reserve detachable pipe segments at the pump house location. The pipe segments are steel pipe segments, and construct soil micro-reinforcement structures around the pipe segments. Step 2: Set up the launching sleeve around the segments from Step 1; Step 3: Construct a sealed chamber around the launching sleeve from Step 2. A segment removal device is installed at the top of the sealed chamber, and a sealing port is provided at the bottom of the sealed chamber. The sealing port is always in a sealed state. Step 4: First, pressurize the liquid filling the sealed chamber, then remove the segments from Step 1 using the segment removal device. When the segment is lifted by the segment removal device, the height of the sealing inlet is lower than the height of the suspended segment. Insert the portal sealing plate into the bottom sealing inlet of the sealed chamber. After the portal sealing plate is inserted, the sealing inlet and the portal sealing plate are sealed together. The sealed chamber is divided into upper and lower sealed cavities. The upper sealed cavity can be removed at any time, and the lower sealed cavity is used for grouting reinforcement. Step 5: Remove the sealed compartment and segment removal device, while retaining the sealed portal plate; Step 6: Install the main unit and lifting device along the launching sleeve. The lifting device includes a steel strand and a sinking cylinder. After the main unit and lifting device are assembled and debugged, the position of the main unit is locked by the steel strand. The tunnel portal sealing plate is pulled out while the launching sleeve is sealed. At the same time, a certain pressure is maintained inside the launching sleeve to provide conditions for the main unit to be pressed during construction. Step 7: The main unit excavates the soil to reserve space for the segment assembly, and at the same time unlocks the steel strands in Step 6. The pump room segments are pressed and connected to the main unit through the sinking cylinder. The main unit discharges the excavated soil through the mud circulation pipeline and performs grouting to reduce friction behind the segment wall through the reserved grouting holes of the segment. Step 8: The main excavator is excavated to the bottom elevation. The main excavator and pump house segments are locked with steel strands. A steel casing is then pressed from the top of the launching sleeve to the excavation face. Step 9: Pull the main unit and pump room segments upwards using steel strands, leaving space for the sealing layer, and then pour the sealing layer; Step 10: Remove the main unit and proceed with the base plate construction; Step 11: Unlock the steel strands and remove the pressure lifting device; Step 12: Replace the back wall of the segment with grout through the reserved grouting holes of the segment.
2. The mechanical pump station construction method within the connecting passage according to claim 1, characterized in that: The sealed chamber has a cylindrical or rectangular structure.
3. The mechanical pump station construction method within the connecting passage according to claim 1, characterized in that: The sealed chamber has a cubic structure.
4. The mechanical pump station construction method within the connecting passage according to claim 1, characterized in that: The sealed chamber has a polygonal prism structure.
5. The mechanical pump station construction method within the connecting passage according to claim 1, characterized in that: In step 12, after the slurry has reached the required solidification strength, the remaining equipment parts and structures are dismantled.