Underground structure perturbation interconnected high-pressure water jet construction system and method

Abstract

The invention provides an underground structure micro-disturbance interconnected high-pressure water jet construction system and method. The system comprises an in-pipe excavation device, a side wall supporting device, an early warning detection device and a water circulation device. The in-pipe excavation device comprises a construction operation vehicle, a high-pressure nozzle controller, a rotatable annular inclined plate and an outer-layer rotatable lateral high-pressure nozzle and is used for excavating and propelling in a construction area, and the side wall supporting device comprises a temporary support and a permanent support and is used for supporting an excavated side wall in the whole process; the early warning detection device comprises a rotatable telescopic hard pipe, a water bag, a water jet early warning probe and a pressure sensor, and the water circulation device comprises a water storage sedimentation tank and a control system. The high-pressure water jet device is adopted for achieving the advanced early warning and micro-disturbance supporting technology, protection of the whole excavation process is completed, the method has the advantages of being high in applicability, small in disturbance, high in safety and stability and the like, the engineering construction efficiency is improved, the influence on peripheral structures is reduced, underground water waste and equipment abrasion can be reduced, and water permeation accidents are reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of municipal engineering, and in particular to a high-pressure water jet construction system and method for underground structure micro-disturbance interconnection. Background Art

[0002] With the development of cities and the increasing tension of land resources, the construction of underground space projects has entered a stage of rapid development. At present, many underground building structures have been built using urban underground space. There are many existing building basements, but they are independent and unconnected. They lack long-term systematic and scientific design and planning, and their due regional functions and overall effects have not been well exerted. For existing underground spaces such as civil air defense projects and basements that cannot be completely demolished, interconnection technology should be used to transform and reinforce independent underground projects.

[0003] At present, researchers have proposed many construction methods for connecting channels in existing underground structures, but they are rarely used in actual projects. This is mainly because the underground geological conditions are complex and the existing pipelines are complex, making the actual construction technology difficult.

[0004] In the prior art, the construction methods for connecting passages of existing underground structures are relatively simple, such as the pipe jacking method. The construction equipment and construction methods used are difficult to be applied to soil below the groundwater level, and the project cost is increased. If the soil quality is poor or the pipe top is over-excavated too much, the ground will sink after completion, and it will take a lot of time, manpower and material resources to repair the cracks on the road surface, which affects the progress of construction and the project cost.

[0005] Therefore, it is necessary to develop a high-pressure water jet construction system and construction method for underground structure micro-disturbance interconnection to be suitable for underground structure connection excavation. Summary of the invention

[0006] The present invention proposes a high-pressure water jet construction system and method for underground structure micro-disturbance interconnection. The control system operates to open the water inlet valve and the channel to extract the stabilizing liquid from the water storage sedimentation tank and transport it from two groups of water injection channels to the front high-pressure nozzle, the outer rotatable lateral high-pressure nozzle and the inner rotatable lateral high-pressure nozzle. The front high-pressure nozzle ejects a high-pressure water beam to soften the soil and scrapes it with an alloy tool. The rotatable telescopic hard tube is extended to allow the inner rotatable lateral high-pressure nozzle to scrape the soil at the front of the temporary support and inject water into the water bag in the water bag storage bin to support the heading face. After that, the outer rotatable lateral high-pressure nozzle is operated to eject a high-pressure water beam so as to excavate the soil to be excavated behind the water bag. The scraped soil and the surrounding mixed liquid form mud and are pumped into the water storage sedimentation tank through the pumping channel, completing the recycling of water used in the device, so as to solve the shortcomings of the background technology proposed in the background technology.

[0007] The technical solution of the present invention is:

[0008] A high-pressure water jet construction system for underground structure micro-disturbance interconnection, comprising:

[0009] The in-pipe excavation device is used to excavate the solid structure between the adjacent first underground structure and the second underground structure so as to connect the first underground structure with the second underground structure, and comprises a construction vehicle, a high-pressure nozzle controller, a rotatable annular inclined plate and an outer rotatable lateral high-pressure nozzle, wherein the high-pressure nozzle controller and the rotatable annular inclined plate are respectively mounted on the top and the front end of the construction vehicle, and a temporary support is mounted on the side of the rotatable annular inclined plate away from the construction vehicle, and the outer rotatable lateral high-pressure nozzle is located at the front side of the construction vehicle in the excavation operation forward direction;

[0010] The side wall support device is used to support the excavation surface of the solid structure between the first underground structure and the second underground structure, and includes a temporary support and a permanent support. The temporary support is combined at the front end of the permanent support, and the permanent support moves with the temporary support. Grouting holes are provided on the outer side of the temporary support, and an alloy cutter and a front high-pressure nozzle are installed at the front end of the temporary support.

[0011] The early warning detection device includes a rotatable telescopic hard tube, a water bag, a water jet early warning probe and a pressure sensor. The rotatable telescopic hard tube is installed with the construction vehicle through a telescopic structure combination. The water bag is located outside the rotatable telescopic hard tube. The water jet early warning probe and the pressure sensor are located on the rotatable telescopic hard tube. The rotatable telescopic hard tube is also provided with an inner rotatable lateral high-pressure nozzle.

[0012] A water circulation device includes a water storage sedimentation tank and a control system. A temporary support side wall is provided with a water and sand pumping hole. A water and sand pumping pipe is connected between the water and sand pumping hole and the water storage sedimentation tank to extract excavated mud. A second water injection pipe is connected between the front high-pressure nozzle and the water storage sedimentation tank to transport water. The water bag, water jet early warning probe and the tail of the outer rotatable lateral high-pressure nozzle are connected to the water storage sedimentation tank by the first water injection pipe.

[0013] Preferably, the rotatable telescopic hard tube includes an inner rotatable columnar structure and two semi-annular water bag transport tubes, and the two semi-annular water bag transport tubes are respectively sleeved on both sides of the inner rotatable columnar structure.

[0014] Preferably, the number of the pressure sensors is set to be multiple, and the multiple pressure sensors are distributed in a ring array outside the water jet warning probe;

[0015] The water jet warning probe and the plurality of pressure sensors are all installed at the front end of the inner rotatable columnar structure.

[0016] Preferably, the number of the inner layer rotatable lateral high-pressure nozzles is set to be multiple, and the multiple inner layer rotatable lateral high-pressure nozzles are distributed in a ring array on the outer side wall of the inner layer rotatable columnar structure.

[0017] Preferably, the outer side wall of the semi-annular water bag transport tube is provided with a water bag storage compartment for placing the water bag.

[0018] Preferably, the outer rotatable lateral high-pressure nozzle is sleeved on the outside of the rotatable telescopic rigid tube, so that the outer rotatable lateral high-pressure nozzle can move back and forth on the rotatable telescopic rigid tube.

[0019] Preferably, the entity structure includes soil to be excavated below the scope of the ground road, and also includes underground structure side walls of the first underground structure and the second underground structure and an underground retaining structure.

[0020] Preferably, the front high-pressure nozzle, the outer rotatable lateral high-pressure nozzle and the inner rotatable lateral high-pressure nozzle are all provided with solenoid valves, and multiple of them are electrically connected to the high-pressure nozzle controller, and the high-pressure nozzle controller controls the solenoid valve parameters to adjust the pressure of the spray water jet.

[0021] Preferably, the water pumping and sand pumping pipeline, the first water injection pipeline and the second water injection pipeline are all provided with pump bodies, and the multiple pump bodies are all controlled by a control system, the control system is electrically connected to the high-pressure nozzle controller, and the water pumping and sand pumping pipeline, the first water injection pipeline and the second water injection pipeline are towed and moved with the construction vehicle.

[0022] A construction method of a high-pressure water jet construction system for underground structure micro-disturbance interconnection, comprising the following steps:

[0023] a. Construction preparation: set up the construction platform, adjust the sliding track, fix the equipment, and select the appropriate high-pressure nozzle;

[0024] b. Install various components of the high-pressure water jet construction system: Use the power device to push the in-pipe excavation device and the side wall support device to the working area, so that the direction of the high-pressure water jet is exactly the same as the pre-drilling direction, and adjust the water jet diameter and water jet pressure of the front high-pressure nozzle according to the excavation content, soil type, pressure sensor and information from the water jet warning probe;

[0025] c. Side excavation of the first underground structure: using temporary support to excavate the underground structure side wall and underground enclosure structure of the first underground structure;

[0026] d. Circular excavation and grouting: The second water injection pipeline transports the liquid to the front high-pressure nozzle to form a high-pressure water jet to scrape the circular soil. The scraped soil is mixed with the stabilizing liquid to form mud, which is pumped to the water storage sedimentation tank through the water and sand pumping pipeline;

[0027] e. Advance the temporary retaining structure: As the soil softens and is scraped, control the temporary support to advance forward;

[0028] f. Water bag support at the front end of the structure is maintained: the inner rotatable lateral high-pressure nozzle is delivered to the front end of the temporary support by using a rotatable telescopic hard pipe. The operation control system delivers the required liquid to the inner rotatable lateral high-pressure nozzle through the first water injection channel to form a high-pressure water jet to scrape the soil on the tunnel face. As the soil on the tunnel face is softened and scraped, water is injected into the water bag through the first water injection channel to achieve the purpose of supporting the tunnel face.

[0029] g. Excavation of soil behind the water bag: After the face support is completed, the parameters of the outer rotatable lateral high-pressure nozzle are adjusted through the control system, the outer rotatable lateral high-pressure nozzle is turned on, and it is rotated 90° left and right to complete the 360° excavation task within the temporary support;

[0030] h. Alternating water bag support: The control system is used to adjust the two semi-circular water bag transport pipes to alternately feed materials, and water bag support is performed for segmented excavation of the soil in the pipe;

[0031] i. Push forward the permanent support structure: As the excavation of the soil behind the water bag is completed, the operating control system slowly pushes the temporary support forward and drags the permanent support forward;

[0032] j. Equipment reset: After the permanent support is advanced, the control system is operated to reset the front high-pressure nozzle, adjust the equipment and input the next section of soil excavation parameters to execute the next stage of circular soil excavation.

[0033] The beneficial effects of the above technical solution adopted by the present invention are:

[0034] 1. Through the control system operation, the water inlet valve and channel are opened to extract the stabilizing liquid from the water storage sedimentation tank and transport it from the two sets of water injection channels to the front high-pressure nozzle, the outer rotatable lateral high-pressure nozzle and the inner rotatable lateral high-pressure nozzle. The front high-pressure nozzle ejects a high-pressure water jet to soften the soil and scrape it off with an alloy tool. The rotatable telescopic hard tube is extended to allow the inner rotatable lateral high-pressure nozzle to scrape the soil at the front of the temporary support and inject water into the water bag in the water bag storage bin to support the face. After that, the outer rotatable lateral high-pressure nozzle is operated to eject a high-pressure water jet so as to excavate the soil to be excavated behind the water bag. The scraped soil and the surrounding mixed liquid form mud and are pumped into the water storage sedimentation tank through the pumping channel to complete the recycling of water used in the device, which can greatly reduce the waste of groundwater, reduce equipment wear and the risk of water seepage accidents, and reduce the harm of dust by the dust reduction effect of water jets, thereby reducing pollution and waste and reducing construction costs.

[0035] 2. By combining the water jet with the alloy cutter head, it can meet the task of excavating any soil layer. The temporary support can directly undertake the circular support task, so that the excavation in the pipe takes place in the temporary support, which has little disturbance to the surrounding soil and structure, can reduce the risk of accidents, and avoid quality problems caused by soil collapse;

[0036] 3. The excavation diameter, excavation speed and excavation shape can be directly controlled by adjusting the water jet pressure, water jet diameter and injection angle of the high-pressure water jet in real time. This excavation structure can be constructed in complex strata and when passing through concrete structures. There is no need to replace the excavation structure. It has strong applicability and small disturbance. It only needs to select appropriate water jet pressure, water jet diameter, injection angle and other parameters according to the material, which can reduce construction costs and save time costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] The present invention will be further described below in conjunction with the accompanying drawings:

[0038] Figure 1 This is a working demonstration reference diagram of the underground structure micro-disturbance interconnected high-pressure water jet construction system provided by an embodiment of the present invention;

[0039] Figure 2 It is a structural schematic diagram of an early warning detection device in an underground structure micro-disturbance interconnected high-pressure water jet construction system provided by an embodiment of the present invention;

[0040] Figure 3 The present invention Figure 1 AA section diagram in FIG.

[0041] Figure 4 The present invention Figure 2 BB section diagram in FIG.

[0042] Figure 5 A construction flow chart of a high-pressure water jet construction system for underground structure micro-disturbance interconnection provided in an embodiment of the present invention.

[0043] Among them: 1. The first underground structure; 2. The second underground structure; 3. The scope of the ground road; 4. The side wall of the underground structure; 5. The underground retaining structure; 6. The soil to be excavated; 7. The alloy tool; 8. The front high-pressure nozzle; 9. Temporary support; 10. The water bag; 10-1. The water bag storage bin; 11. The water storage sedimentation tank; 12. The control system; 13. The first water injection pipeline; 14. The water and sand pumping pipeline; 15. The rotatable telescopic hard pipe; 16. The grouting hole; 17. The water jet warning probe; 18. The high-pressure nozzle controller; 19. The outer rotatable lateral high-pressure nozzle; 20. The rotatable annular inclined plate; 21. The permanent support; 22. The second water injection pipeline; 23. The pressure sensor; 24. The inner rotatable columnar structure; 25. The inner rotatable lateral high-pressure nozzle; 26. The semi-circular water bag transport pipe; 27. The construction vehicle; 28. The water and sand pumping hole; 29. ​​The telescopic structure. DETAILED DESCRIPTION

[0044] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments:

[0045] like Figure 1-4 A high-pressure water jet construction system for underground structure micro-disturbance interconnection is shown, comprising:

[0046] The in-pipe excavation device is used to excavate the solid structure between the adjacent first underground structure 1 and the second underground structure 2, and spray high-pressure water flow to the soil in the pipe to complete the excavation and advance the construction area, so that the first underground structure 1 is connected with the second underground structure 2. The device includes a construction vehicle 27, a high-pressure nozzle controller 18, a rotatable annular inclined plate 20 and an outer rotatable lateral high-pressure nozzle 19. The high-pressure nozzle controller 18 and the rotatable annular inclined plate 20 are respectively installed on the top and front end of the construction vehicle 27, and the temporary support 9 is installed on the side of the rotatable annular inclined plate 20 away from the construction vehicle 27. The outer rotatable lateral high-pressure nozzle 19 is located in front of the construction vehicle 27 in the forward direction of the excavation operation;

[0047] A side wall support device is used to support the excavation surface of the solid structure between the first underground structure 1 and the second underground structure 2, and includes a temporary support 9 and a permanent support 21. The temporary support 9 is combined at the front end of the permanent support 21, and the permanent support 21 moves with the temporary support 9. A grouting hole 16 is provided on the outer side of the temporary support 9, and an alloy cutter 7 and a front high-pressure nozzle 8 are installed at the front end of the temporary support 9;

[0048] The early warning detection device includes a rotatable telescopic hard tube 15, a water bag 10, a water jet early warning probe 17 and a pressure sensor 23. The rotatable telescopic hard tube 15 is assembled with a construction vehicle 27 through a telescopic structure 29. The water bag 10 is located outside the rotatable telescopic hard tube 15. The water jet early warning probe 17 and the pressure sensor 23 are located on the rotatable telescopic hard tube 15. The rotatable telescopic hard tube 15 is also provided with an inner rotatable lateral high-pressure nozzle 25.

[0049] A water circulation device includes a water storage sedimentation tank 11 and a control system 12. A water and sand extraction hole 28 is opened on the side wall of the temporary support 9. A water and sand extraction pipeline 14 is connected between the water and sand extraction hole 28 and the water storage sedimentation tank 11 for extracting excavated mud. A second water injection pipeline 22 is connected between the front high-pressure nozzle 8 and the water storage sedimentation tank 11 for water delivery. The water bag 10, the water jet early warning probe 17 and the outer rotatable lateral high-pressure nozzle 19 are connected to the water storage sedimentation tank 11 by the first water injection pipeline 13 at the tail.

[0050] Furthermore, in the embodiment provided by the present technical solution, the rotatable telescopic hard tube 15 includes an inner rotatable columnar structure 24 and two semi-annular water bag transport tubes 26, and the two semi-annular water bag transport tubes 26 are respectively sleeved on both sides of the inner rotatable columnar structure 24.

[0051] Further, in the embodiment provided by the present technical solution, the number of the pressure sensors 23 is set to be multiple, and the multiple pressure sensors 23 are distributed in a ring array outside the water jet warning probe 17;

[0052] The water jet warning probe 17 and the plurality of pressure sensors 23 are all installed at the front end of the inner rotatable columnar structure 24 .

[0053] Furthermore, in the embodiment provided by the present technical solution, the number of the inner rotatable lateral high-pressure nozzles 25 is set to be multiple, and the multiple inner rotatable lateral high-pressure nozzles 25 are distributed in a circular array on the outer side wall of the inner rotatable columnar structure 24.

[0054] Furthermore, in the embodiment provided by the present technical solution, a water bag storage compartment 10 - 1 is provided on the outer side wall of the semi-annular water bag transport tube 26 for placing the water bag 10 .

[0055] Furthermore, in the embodiment provided by the present technical solution, the outer rotatable lateral high-pressure nozzle 19 is sleeved on the outside of the rotatable telescopic rigid tube 15 , so that the outer rotatable lateral high-pressure nozzle 19 can move back and forth on the rotatable telescopic rigid tube 15 .

[0056] Furthermore, in the embodiment provided by the present technical solution, the physical structure includes a soil body 6 to be excavated below the range 3 of the ground road to be dug through, and also includes underground structure side walls 4 of the first underground structure 1 and the second underground structure 2 and an underground retaining structure 5.

[0057] Furthermore, in the embodiment provided by the present technical solution, solenoid valves are provided in the front high-pressure nozzle 8, the outer rotatable lateral high-pressure nozzle 19 and the inner rotatable lateral high-pressure nozzle 25, and multiple of them are electrically connected to the high-pressure nozzle controller 18, and the high-pressure nozzle controller 18 controls the solenoid valve parameters to adjust the pressure of the spray water jet.

[0058] Furthermore, in the embodiment provided by the present technical solution, the water pumping and sand extraction pipeline 14, the first water injection pipeline 13 and the second water injection pipeline 22 are all provided with pump bodies, and the multiple pump bodies are all controlled by the control system 12, the control system 12 is electrically connected to the high-pressure nozzle controller 18, and the water pumping and sand extraction pipeline 14, the first water injection pipeline 13 and the second water injection pipeline 22 are towed and moved with the construction vehicle 27.

[0059] like Figure 5As shown, a construction method of a high-pressure water jet construction system for underground structure micro-disturbance interconnection includes the following steps:

[0060] a. Construction preparation: set up the construction platform, adjust the sliding track, fix the equipment, and select the appropriate high-pressure nozzle;

[0061] b. Install the components of the high-pressure water jet construction system: Use the power device to push the pipe excavation device and the side wall support device to the working area, so that the direction of the high-pressure water jet is exactly the same as the pre-drilling direction, and adjust the water jet diameter and water jet pressure of the front high-pressure nozzle 8 according to the excavation content, soil type, pressure sensor 23 and water jet warning probe 17.

[0062] c. Excavation of the side of the first underground structure 1: excavating the underground structure side wall 4 and the underground enclosure structure 5 of the first underground structure 1 by using temporary supports 9;

[0063] d. Circular excavation and grouting: The second water injection pipe 22 delivers liquid to the front high-pressure nozzle 8 to form a high-pressure water jet to scrape the circular soil, and the scraped soil is mixed with the stabilizing liquid to form mud, which is pumped to the water storage sedimentation tank 11 through the water and sand pumping pipe 14;

[0064] e. Advancing the temporary retaining structure: As the soil softens and is scraped, the temporary support 9 is controlled to advance forward;

[0065] In steps d and e, the excavated and advanced temporary support structure 9 is able to support the soil in the excavated area with minimal disturbance;

[0066] f. Support with water bag 10 at the front end of the structure: Use the probe and the rotatable telescopic hard tube 15 to deliver the water bag 10 to the front end of the temporary support for tunnel face support, use the rotatable telescopic hard tube 15 to deliver the inner rotatable lateral high-pressure nozzle 25 to the front end of the temporary support 9, operate the control system 12 to deliver the required liquid to the inner rotatable lateral high-pressure nozzle 25 through the first water injection channel 13 to form a high-pressure water jet to scrape the soil at the tunnel face, and as the soil at the tunnel face is softened and scraped, water is injected into the water bag 10 through the first water injection channel 13 to achieve the purpose of supporting the tunnel face;

[0067] g. Excavation of soil behind the water bag 10: After the face support is completed, the parameters of the outer rotatable lateral high-pressure nozzle 19 are adjusted through the control system 12, the outer rotatable lateral high-pressure nozzle 19 is turned on, and it is rotated 90° left and right to complete the 360° excavation task in the temporary support 9;

[0068] h. Alternating support of water bags 10: The control system 12 is used to adjust the alternate feeding of the two semi-circular water bag transport pipes 26, and the water bag 10 is used to support the segmented excavation of the soil in the pipe. After the support of the water bag 10 is completed, in order to maintain the stability of the tunnel face, another water bag 10 is pushed forward to support the lower segment of the soil tunnel face, and the two are performed alternately. At the same time, the control system 12 is used to adjust the parameters of the inner layer rotatable lateral high-pressure nozzle 25 and the rotatable telescopic hard pipe 15, and the inner layer rotatable lateral high-pressure nozzle 25 is opened, and rotated 90° left and right to complete the 360° micro-disturbance excavation task in the temporary support 9;

[0069] i. Pushing forward the permanent support 21 structure: As the soil excavation behind the water bag 10 is completed, the operating control system 12 slowly pushes the temporary support 9 forward and drags the permanent support 21 forward to complete the low-disturbance support;

[0070] j. Equipment reset: After the permanent support 21 is pushed forward, the control system 12 is operated to reset the front high-pressure nozzle 8, adjust the equipment and input the next section of soil excavation parameters, and execute the next stage of circular soil excavation.

[0071] In steps c, d, e and h, the operation control system 12 automatically adjusts the high-pressure nozzle controller 18 to change the parameters of the front high-pressure nozzle 8, the inner rotatable lateral high-pressure nozzle 25 and the outer rotatable lateral high-pressure nozzle 19, and performs micro-disturbance scraping on the soil and steel-concrete structure without changing the device.

[0072] The preferred embodiments of the present invention are described in detail above; however, the present invention is not limited to the specific details in the above embodiments. Within the technical concept of the present invention, various equivalent transformations can be made to the technical solutions of the present invention, and these equivalent transformations all belong to the protection scope of the present invention.

Claims

1. A high-pressure water jet construction system for underground structure micro-disturbance interconnection, characterized by: include An in-pipe excavation device is used for excavating a solid structure between an adjacent first underground structure (1) and a second underground structure (2), so that the first underground structure (1) and the second underground structure (2) are connected. The device comprises a construction vehicle (27), a high-pressure nozzle controller (18), a rotatable annular inclined plate (20) and an outer rotatable lateral high-pressure nozzle (19). The high-pressure nozzle controller (18) and the rotatable annular inclined plate (20) are respectively installed on the top and front end of the construction vehicle (27), and a temporary support (9) is installed on the side of the rotatable annular inclined plate (20) away from the construction vehicle (27). The outer rotatable lateral high-pressure nozzle (19) is located in front of the construction vehicle (27) in the direction of forward excavation operation. A sidewall support device is used to support the excavation surface of the solid structure between the first underground structure (1) and the second underground structure (2), comprising a temporary support (9) and a permanent support (21), wherein the temporary support (9) is assembled at the front end of the permanent support (21), and the permanent support (21) moves with the temporary support (9), a grouting hole (16) is provided on the outer side of the temporary support (9), and an alloy tool (7) and a front high-pressure nozzle (8) are installed at the front end of the temporary support (9); An early warning detection device comprises a rotatable telescopic hard tube (15), a water bag (10), a water jet early warning probe (17) and a pressure sensor (23); the rotatable telescopic hard tube (15) and a construction vehicle (27) are assembled and installed via a telescopic structure (29); the water bag (10) is located outside the rotatable telescopic hard tube (15); the water jet early warning probe (17) and the pressure sensor (23) are located on the rotatable telescopic hard tube (15); and the rotatable telescopic hard tube (15) is further provided with an inner rotatable lateral high-pressure nozzle (25); The water circulation device comprises a water storage sedimentation tank (11) and a control system (12). A water pumping and sand pumping hole (28) is opened on the side wall of the temporary support (9). A water pumping and sand pumping pipe (14) is connected between the water pumping and sand pumping hole (28) and the water storage sedimentation tank (11) for pumping excavated mud. A second water injection pipe (22) is connected between the front high-pressure nozzle (8) and the water storage sedimentation tank (11) for water delivery. The tail of the water bag (10), the water jet warning probe (17) and the outer rotatable lateral high-pressure nozzle (19) is connected to the water storage sedimentation tank (11) through the first water injection pipe (13).

2. The underground structure micro-disturbance interconnected high-pressure water jet construction system according to claim 1, characterized in that: The rotatable telescopic hard tube (15) comprises an inner rotatable columnar structure (24) and two semi-annular water bag transport tubes (26), and the two semi-annular water bag transport tubes (26) are respectively sleeved on both sides of the inner rotatable columnar structure (24).

3. The underground structure micro-disturbance interconnected high-pressure water jet construction system according to claim 2, characterized in that: The number of the pressure sensors (23) is set to be multiple, and the multiple pressure sensors (23) are distributed in a ring array outside the water jet warning probe (17); The water jet warning probe (17) and the plurality of pressure sensors (23) are all mounted on the front end of the inner rotatable columnar structure (24).

4. The underground structure micro-disturbance interconnected high-pressure water jet construction system according to claim 2, characterized in that: The number of the inner rotatable lateral high-pressure nozzles (25) is set to be multiple, and the multiple inner rotatable lateral high-pressure nozzles (25) are distributed in a ring array on the outer side wall of the inner rotatable columnar structure (24).

5. The underground structure micro-disturbance interconnected high-pressure water jet construction system according to claim 1, characterized in that: The outer side wall of the semi-annular water bag transport tube (26) is provided with a water bag storage compartment (10-1) for accommodating the water bag (10).

6. The underground structure micro-disturbance interconnected high-pressure water jet construction system according to claim 1, characterized in that: The outer rotatable side high-pressure nozzle (19) is sleeved on the outside of the rotatable telescopic hard tube (15), so that the outer rotatable side high-pressure nozzle (19) can move forward and backward on the rotatable telescopic hard tube (15).

7. The underground structure micro-disturbance interconnected high-pressure water jet construction system according to claim 1, characterized in that: The entity structure includes soil (6) to be excavated below the range of the ground road (3), and also includes underground structure side walls (4) of the first underground structure (1) and the second underground structure (2) and an underground enclosure structure (5).

8. The underground structure micro-disturbance interconnected high-pressure water jet construction system according to claim 1, characterized in that: The front high-pressure nozzle (8), the outer rotatable lateral high-pressure nozzle (19) and the inner rotatable lateral high-pressure nozzle (25) are all provided with electromagnetic valves, and a plurality of them are electrically connected to the high-pressure nozzle controller (18). The high-pressure nozzle controller (18) controls the electromagnetic valve parameters to adjust the pressure of the sprayed water beam.

9. The underground structure micro-disturbance interconnected high-pressure water jet construction system according to claim 1, characterized in that: The water pumping and sand extraction pipeline (14), the first water injection pipeline (13) and the second water injection pipeline (22) are all provided with pump bodies, and the multiple pump bodies are all controlled by a control system (12). The control system (12) is electrically connected to a high-pressure nozzle controller (18). The water pumping and sand extraction pipeline (14), the first water injection pipeline (13) and the second water injection pipeline (22) are towed and moved along with the construction vehicle (27).

10. The construction method of the underground structure micro-disturbance interconnected high-pressure water jet construction system according to any one of claims 1 to 9, characterized in that: The following steps are involved: a. Construction preparation: set up the construction platform, adjust the sliding track, fix the equipment, and select the appropriate high-pressure nozzle; b. Install the components of the high-pressure water jet construction system: Use the power device to push the pipe excavation device and the side wall support device to the working area, so that the direction of the high-pressure water jet is exactly the same as the pre-drilling direction, and adjust the water jet diameter and water jet pressure of the front high-pressure nozzle (8) according to the excavation content, soil type, pressure sensor (23) and water jet warning probe (17); c. Side excavation of the first underground structure (1): excavating the underground structure side wall (4) and the underground enclosure structure (5) of the first underground structure (1) using temporary support (9); d. Circular excavation and grouting: The second water injection pipe (22) delivers liquid to the front high-pressure nozzle (8) to form a high-pressure water jet to scrape the circular soil. The scraped soil is mixed with the stabilizing liquid to form slurry, which is then pumped to the water storage sedimentation tank (11) through the water and sand pumping pipe (14); e. Advancing the temporary retaining structure: As the soil softens and is scraped, the temporary support (9) is controlled to advance forward; f. Supporting the water bag (10) at the front end of the structure: using a rotatable telescopic hard tube (15), the inner rotatable lateral high-pressure nozzle (25) is delivered to the front end of the temporary support (9); the operating control system (12) delivers the required liquid to the inner rotatable lateral high-pressure nozzle (25) through the first water injection channel (13) to form a high-pressure water jet to scrape the soil on the tunnel face; as the soil on the tunnel face is softened and scraped, water is injected into the water bag (10) through the first water injection channel (13) to achieve the purpose of supporting the tunnel face; g. Excavation of soil after water bag (10): After the tunnel face support is completed, the parameters of the outer rotatable lateral high-pressure nozzle (19) are adjusted through the control system (12), the outer rotatable lateral high-pressure nozzle (19) is turned on, and the outer rotatable lateral high-pressure nozzle (19) is rotated 90 degrees left and right to complete the 360-degree excavation task within the temporary support (9); h. Alternating support of water bags (10): adjusting the alternate feeding of the two semi-circular water bag transport pipes (26) through the control system (12), and performing segmented excavation of the soil in the pipes with water bags (10); i. Propelling the permanent support (21) structure: As the soil excavation behind the water bag (10) is completed, the operating control system (12) slowly pushes the temporary support (9) forward and drags the permanent support (21) forward; j. Equipment reset: After the permanent support (21) is pushed forward, the control system (12) is operated to reset the front high-pressure nozzle (8), adjust the equipment and input the next section of soil excavation parameters to execute the next stage of circular soil excavation.

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