A water-stop ring pipe for tunnel opening in complex geological jacking construction and its application

Abstract

The present invention discloses a water-stop ring pipe for a tunnel opening of a complex geological jacking pipe construction and its application, and relates to the technical field of water-stop ring pipes. The water-stop ring pipe for a tunnel opening of a complex geological jacking pipe construction comprises a ring pipe body: the ring pipe body has a passage for a jacking machine and a jacking pipe to pass through, a fender is arranged on one side of the ring pipe body, a metal sealing door is arranged on the other side of the ring pipe body, and a water-stop assembly: the water-stop assembly comprises a telescopic support and a water-stop rubber member, the water-stop rubber member is arranged along the inner wall of the ring pipe body, and the two sides of the water-stop rubber member are fixedly connected to the inner wall of the ring pipe body, one end of the telescopic support is connected to the ring pipe body, and the other end of the telescopic support supports the water-stop rubber member to abut against the outer wall of the jacking machine or the outer wall of the jacking pipe, and the other end of the telescopic support is provided with an arc strip supporting the water-stop rubber member, the arc strip is elastic, and an elastic rope is connected between the arc strips. The water-stop ring pipe for a tunnel opening of a complex geological jacking pipe construction and its application have the beneficial effects of good sealing effect and ensuring construction safety.

Description

Technical Field

[0001] The invention relates to the technical field of water-stop ring pipes, and in particular to a water-stop ring pipe for a tunnel opening in a complex geological jacking construction and its application. Background Art

[0002] Pipe jacking construction is a pipeline burial construction technology that does not involve excavation or requires little excavation. In the working pit, the jacking force generated by the jacking equipment is used to overcome the friction between the pipeline and the surrounding soil, and the pipeline is pushed into the soil according to the designed slope, and the soil is transported away. After one section of the pipe is pushed into the soil layer, the second section of the pipe is pushed in. Pipe jacking technology is widely used in the laying, replacement and repair of various pipelines across roads, railways, rivers, downtown areas, etc. where excavation is not allowed or not available. Because pipe jacking construction technology has the advantages of low comprehensive cost, short construction period, small environmental impact, and good construction safety, it is widely used in the construction of underground pipelines such as municipal water supply and drainage, communication cables, gas pipelines, and power cables.

[0003] However, in pipe jacking construction projects, especially long-distance pipe jacking construction, as the pipe jacking is advanced, a certain gap will be generated between the outer wall of the pipe and the inner wall of the hole ring pipe. At this time, the silty sand, mud or groundwater in the soil will flow out along the gap, resulting in changes in the topography in the construction area, which brings troubles to the construction. Therefore, it is necessary to install a hole water stop device at the hole entrance to stop water. In the prior art, rubber sealing rings are generally used to seal, but the outer diameter of the pipe jacking machine in the pipe jacking construction project is larger than the outer diameter of the pipe jacking. Therefore, during the transition process between the pipe jacking machine and the pipe jacking, due to the change in diameter, the original rubber sealing ring cannot play a good sealing role. For some complex geological adjustments with high water content, it is easy to cause water seepage in the construction well, and even excessive water seepage can easily lead to cave collapse.

[0004] Therefore, the prior art needs to be improved. Summary of the invention

[0005] The technical problem to be solved by the present invention is that the sealing effect of the tunnel opening ring pipe in the prior art is poor and water seepage is likely to cause accidents. The purpose is to provide a water-stop ring pipe for tunnel openings in complex geological jacking construction and its application, which adopts the corresponding technical scheme and has the beneficial effects of good sealing effect and ensuring construction safety.

[0006] The present invention is achieved through the following technical solutions:

[0007] In the first aspect, the present invention provides a water-stop ring pipe for tunnel openings in complex geological conditions, which comprises

[0008] Ring pipe body: The ring pipe body has a passage for the pipe jacking machine and the pipe jacking machine to pass through. A fender is provided on one side of the ring pipe body, and a metal sealing door is provided on the other side of the ring pipe body.

[0009] Water-stop assembly: The water-stop assembly includes a telescopic support and a water-stop rubber member, the water-stop rubber member is arranged along the inner wall of the ring tube body, and the two sides of the water-stop rubber member are fixedly connected to the inner wall of the ring tube body, the telescopic support is arranged between the water-stop rubber member and the ring tube body, and one end of the telescopic support is connected to the ring tube body, and the other end of the telescopic support supports the water-stop rubber member to abut against the outer wall of the jacking machine or the outer wall of the jacking pipe,

[0010] The other end of the telescopic support is provided with an arcuate pressure strip supporting the waterproof rubber member, the arcuate pressure strip is elastic, and an elastic cable is connected between the arcuate pressure strips to drive the waterproof rubber member to abut against the outer wall of the jacking machine or the outer wall of the jacking pipe.

[0011] Furthermore, in the present invention, the above-mentioned water-stopping components are provided in a plurality of groups, and the arc-shaped pressure strips of the water-stopping components of one group of two adjacent groups are adapted to the elastic cables of the water-stopping components of the other group.

[0012] Furthermore, in the present invention, the elastic cable is shaped into an arched shape when not under pressure, and the arched portion is located on a side close to the telescopic support. After the elastic cable contracts and arches, the arc-shaped strips abut against each other in sequence to form a circle around the top pipe.

[0013] Furthermore, in the present invention, screws are provided on both sides of the waterproof rubber member, the screws are connected to the ring tube body, and clamping rings are also provided on both sides of the waterproof rubber member, and the screws are fixed by passing through the clamping rings.

[0014] Furthermore, the present invention also includes a pumping assembly, which includes a pumping pump and a pumping pipe connected to each other, and the pumping pipe is inserted between the water-stop rubber member and the outer wall of the pipe jacking machine and the pipe jacking machine to suck water and mud.

[0015] Furthermore, in the present invention, the fender is provided with an inclined guide plate.

[0016] Furthermore, in the present invention, the metal sealing door is configured as a plurality of channel steels closely fitted side by side, the main body of the ring pipe is cast with concrete, and a reinforcing steel mesh is arranged inside the main body of the ring pipe.

[0017] Furthermore, in the present invention, the telescopic support is configured as an electric push rod, and the electric push rod is provided with a thrust meter for detecting thrust.

[0018] Furthermore, in the present invention, the telescopic support is configured as a telescopic sleeve, and a spring is arranged inside the telescopic sleeve.

[0019] In a second aspect, the present invention also provides an application, which uses the water-stopping ring pipe for the tunnel opening of the complex geological jacking pipe construction to stop water in the tunnel opening of the jacking pipe construction.

[0020] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0021] The present invention provides a water-stopping ring pipe for a tunnel opening in complex geological jacking construction, comprising a ring pipe main body and a water-stopping assembly. When in use, the ring pipe main body plays a role of supporting the tunnel opening, and the water-stopping assembly is installed on the inner side of the ring pipe main body to play a role of sealing and water-stopping. During the tunnel construction process, the telescopic support pushes the water-stopping rubber piece against the outer wall of the tunnel jacking machine, and the water-stopping rubber piece plays a sealing role in the process of the tunnel jacking machine moving forward, thereby preventing a large amount of water and mud from seeping out of the tunnel opening. When the tunnel opening is transitioned from the tunnel jacking machine to the tunnel jacking process, the telescopic support undergoes telescopic deformation, and the telescopic support pushes the water-stopping rubber piece against the outer wall of the tunnel jacking, and the water-stopping rubber piece plays a sealing role in the process of the tunnel jacking moving forward, thereby preventing a large amount of water and mud from seeping out of the tunnel opening. The telescopic support can adapt to the diameter change from the tunnel jacking machine to the tunnel jacking, and plays a good sealing role, thereby preventing water seepage in the construction well and tunnel opening collapse, and has the beneficial effects of good sealing effect and ensuring construction safety.

[0022] The present invention provides an application, in which a water-stopping ring pipe for a tunnel opening in a jacking pipe construction with complex geology is applied to water-stopping of a tunnel opening in a jacking pipe construction. Even in a complex geology with a high water content, a good sealing effect can be achieved, and there is no need to stop work in a transitional stage to increase sealing, thereby avoiding accidents of water seepage in the construction well and cave opening collapse. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the exemplary embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and should not be regarded as limiting the scope. For those of ordinary skill in the art, other relevant drawings can be obtained based on these drawings without creative work. In the drawings:

[0024] Figure 1 It is a partial schematic diagram of the interior of the water-stop ring pipe at the opening of the complex geological jacking construction according to an embodiment of the present invention;

[0025] Figure 2 It is a cross-sectional schematic diagram of a water-stop ring pipe for a tunnel opening in complex geological conditions according to an embodiment of the present invention;

[0026] Figure 3 for Figure 1 The enlarged schematic diagram of point A in the middle;

[0027] Figure 4 It is a schematic diagram of the arc-shaped pressure strip and the elastic cable when sealing the pipe jacking machine of the present invention;

[0028] Figure 5 A schematic diagram of the interior of a water-stop ring pipe for tunnel opening in complex geological conditions according to an embodiment of the present invention;

[0029] Figure 6 It is a schematic diagram of two adjacent groups of arc-shaped layering strips and elastic cables according to an embodiment of the present invention;

[0030] Figure 7 It is a schematic diagram of the arc-shaped pressure strip and the elastic rope when sealing the top pipe of the present invention.

[0031] Markings and corresponding parts names in the accompanying drawings: 1-ring pipe body, 101-channel, 102-reinforced steel mesh, 2-mudguard, 201-inclined guide plate, 3-metal sealing door, 4-waterstop assembly, 401-telescopic support, 402-waterstop rubber part, 4021-screw, 4022-pressure ring, 403-arc pressure strip, 404-elastic rope, 5-jacking pipe, 6-jacking machine. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical scheme and advantages of the present invention clearer, the present invention is further described in detail below in conjunction with the embodiments and drawings. The schematic implementation mode of the present invention and its description are only used to explain the present invention and are not intended to limit the present invention. The following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present invention.

[0033] It should be noted that similar numbers and letters represent similar items in the following figures. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. In the description of the embodiments of the present invention, it should also be noted that unless otherwise clearly specified and limited, the terms "setting", "installation" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, and it can be the internal connection of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0034] Example 1, please refer to Figures 1 to 7 As shown, this is a water-stop ring pipe for tunnel opening in complex geological jacking construction of this embodiment, and the specific structure is as follows.

[0035] Combination Figure 1 and Figure 2As shown, the water-stop ring pipe for the complex geological jacking construction tunnel opening of this embodiment 1 is mainly composed of two parts: the ring pipe body 1 and the water-stop component 4. The ring pipe body 1 is used to support the tunnel opening, reinforce the tunnel opening, and avoid collapse. The water-stop component 4 is installed on the inner side of the ring pipe body 1 to play the role of sealing and water-stopping.

[0036] Combination Figure 1 and Figure 2 As shown, the annular pipe body 1 of this embodiment is an annular tube formed by pouring concrete. In order to increase the strength of its structure, a reinforcing steel mesh 102 is placed inside the annular pipe body 1. After the concrete is poured, it forms an integral body with the annular pipe body 1, has a high structural strength, and improves the safety of the construction of the jacking pipe 5. The annular pipe body 1 has a channel 101 inside, and the function of the channel 101 is to allow the jacking machine 6 and the jacking pipe 5 to pass through.

[0037] Further, combined with Figure 1 As shown, a metal sealing door 3 is fixedly installed on the left side of the ring tube body 1. The metal sealing door 3 is composed of a plurality of channel steels tightly fitted side by side. The metal sealing door 3 can be inserted into the ring tube body 1 through a metal anchor rod and a fixed connection is achieved after pouring and solidification.

[0038] Furthermore, a mud guard 2 is installed on the right side of the annular pipe body 1, and the same mud guard 2 is also inserted into the annular pipe body 1 and fixedly connected by a metal anchor rod. The inner diameter of the mud guard 2 is slightly larger than the outer diameter of the pipe jacking machine 6, and the mud guard 2 can block part of the mud attached to the outer wall of the pipe jacking machine 6 or the jacking pipe 5, thereby reducing the sealing pressure of the water stop assembly 4. In addition, an inclined guide plate 201 is installed on the outer side of the mud guard 2, and the inclined guide plate 201 forms a slope, which has a better scraping effect on mud and soil.

[0039] In some implementations of this embodiment, refer to Figure 1 and Figure 2 As shown, the water-stop assembly 4 is mainly composed of two parts: a telescopic support 401 and a water-stop rubber member 402 . The telescopic support 401 and the water-stop rubber member 402 are both installed on the inner wall of the ring tube body 1 .

[0040] Further, such as Figure 1 As shown, the water-stop rubber member 402 is made of rubber material in the prior art, and is annular. Both sides of the water-stop rubber member 402 are fixedly connected to the inner wall of the ring tube body 1 , and the connection method can be fixed by screws 4021 .

[0041] It should be noted that, combined with Figure 1 and Figure 3As shown, in order to compress the side of the waterproof rubber part 402, a clamping ring 4022 is installed on the left and right sides of the waterproof rubber part 402, and the screw 4021 passes through the clamping ring 4022 and is inserted into the inner wall of the ring tube body 1. The screw 4021 compresses the clamping ring 4022, and the clamping ring 4022 compresses the left and right sides of the waterproof rubber part 402, reducing the gap and improving the fixing effect and sealing effect. The screw 4021 can be an expansion screw, which has the advantages of stable fixing and easy installation.

[0042] In some implementations of this embodiment, the telescopic support 401 can adopt an electric push rod or a telescopic tube sleeve, the base of the electric push rod or the telescopic tube sleeve is fixedly installed on the inner wall of the ring tube body 1, the electric push rod or the telescopic tube sleeve is located between the inner wall of the ring tube body 1 and the water-stop rubber part 402, and the electric push rod or the telescopic tube sleeve lifts the middle position of the water-stop rubber part 402.

[0043] It should be noted that if Figure 1 As shown, a thrust meter 4011 for detecting thrust is installed on the electric push rod, which is convenient for controlling the tightness of the waterproof rubber member 402 by controlling the telescopic degree, and has the advantage of easy control. The telescopic sleeve is a sleeve with a movable tube inserted inside, and a spring is installed inside. The compressed spring pushes the movable tube to lift the waterproof rubber member 402, which has the advantage of simple structure and reduced construction cost.

[0044] In some implementations of this embodiment, an arc-shaped pressure strip 403 is fixedly installed at one end of the telescopic support 401 away from the annular pipe body 1. The arc-shaped pressure strip 403 is made of a metal plate, such as a stainless steel plate. The arc-shaped pressure strip 403 has a certain elasticity. After contacting the pipe jacking machine 6 and the pipe jacking 5, the arc-shaped pressure strip 403 is compressed, deformed and stretched. Figure 2 As shown, this embodiment is installed with 12 telescopic supports 401, and correspondingly, 12 arc-shaped pressure strips 403 are also installed. The telescopic supports 401 and the arc-shaped pressure strips 403 are evenly distributed around the jacking pipe 5 or the jacking machine 6, so as to evenly apply force to the water-stop rubber part 402 and achieve a better sealing effect.

[0045] Furthermore, in order to allow the water-stop rubber member 402 between the arc-shaped beading strips 403 to be compressed, the water-stop rubber member 402 between the arc-shaped beading strips 403 is also compressed. Figure 4As shown, an elastic cable 404 is connected between adjacent arc-shaped beading strips 403 and arc-shaped beading strips 403 to drive the water-stop rubber member 402 to abut against the outer wall of the jacking machine 6 or the outer wall of the jacking pipe 5. Whether the jacking machine 6 or the jacking pipe 5 passes through the water-stop ring pipe at the entrance of the jacking pipe construction in complex geology, the elastic cable 404 is always in a stretched state. The elastic cable 404 can press the water-stop rubber member 402 between the arc-shaped beading strips 403 and the arc-shaped beading strips 403, so during the transition process of the jacking machine 6 and the jacking pipe 5, the sealing effect can still be maintained, and water seepage and cave collapse will not occur. There is no need to stop work to increase sealing, which does not affect the construction efficiency.

[0046] It should be noted that the arc-shaped pressure strip 403 and the elastic rope 404 can also adopt another matching form, that is, the elastic rope 404 is stretched when the pipe jacking machine 6 passes by. Figure 4 As shown, when the top pipe 5 passes, the elastic cable 404 arches up, and only the arc-shaped pressure strip 403 plays the role of compression and sealing. Figure 7 As shown. The elastic rope 404 is shaped as follows when not under pressure. Figure 7 The arched shape shown in the figure has an arched portion located at the lower side, i.e., the side close to the telescopic support 401, which does not affect the pressure of the arc-shaped beading strips 403. When the pipe jacking machine 6 passes by, the telescopic support 401 adjusts the telescopic length, the intervals of the arc-shaped beading strips 403 are relatively far apart, and the arc-shaped beading strips 403 are in a stretched state. When the jacking pipe 5 passes by, the telescopic support 401 stretches, the intervals of the arc-shaped beading strips 403 are reduced, and the elastic rope 404 gradually arches, and the arc-shaped beading strips 403 are sequentially abutted to form a circle around the jacking pipe 5.

[0047] In some implementations of this embodiment, Figure 5 and Figure 6 As shown, this embodiment is installed with two groups of water-stop components 4, and the arc-shaped molding strips 403 of one group of water-stop components 4 are aligned with the elastic ropes 404 of the other group of water-stop components 4, and the elastic ropes 404 of one group of water-stop components 4 are aligned with the arc-shaped molding strips 403 of the other group of water-stop components 4, so as to enhance the sealing effect and play a better blocking role.

[0048] Example 2. This example provides an application of a water-stop ring pipe for a tunnel opening in a complex geological jacking construction. The water-stop ring pipe for a tunnel opening in a complex geological jacking construction in Example 1 is used to stop the water in the tunnel opening in the jacking construction, thereby achieving a better sealing effect.

[0049] The working principle of the water-stop ring pipe for tunnel opening in complex geological jacking construction and its application of the present invention is as follows:

[0050] When in use, the annular tube body 1 plays a role in supporting the hole, and the water-stop assembly 4 is installed on the inner side of the annular tube body 1 to play a role in sealing and water-stopping. During the construction of the jacking pipe 5, the telescopic support 401 pushes the water-stop rubber part 402 against the outer wall of the jacking machine 6. During the advancement of the jacking machine 6, the water-stop rubber part 402 plays a sealing role to prevent a large amount of water and mud from seeping out of the hole. When the hole transitions from the jacking machine 6 to the jacking pipe 5, the telescopic support 401 undergoes telescopic deformation, and the telescopic support 401 pushes the water-stop rubber part 402 against the outer wall of the jacking pipe 5. During the advancement of the jacking pipe 5, the water-stop rubber part 402 plays a sealing role to prevent a large amount of water and mud from seeping out of the hole. The telescopic support 401 can adapt to the diameter change from the jacking machine 6 to the jacking pipe 5, play a good sealing role, avoid water seepage in the construction well and cave collapse, and has the beneficial effects of good sealing effect and ensuring construction safety.

[0051] In summary, the present invention provides a water-stop ring pipe for a tunnel opening of a complex geological jacking construction, which includes a ring pipe body 1: the ring pipe body 1 has a channel 101 for a jacking machine 6 and a jacking pipe 5 to pass through, a mudguard 2 is arranged on one side of the ring pipe body 1, and a metal sealing door 3 is arranged on the other side of the ring pipe body 1, and a water-stop component 4: the water-stop component 4 includes a telescopic support 401 and a water-stop rubber member 402, the water-stop rubber member 402 is arranged along the inner wall of the ring pipe body 1, and the two sides of the water-stop rubber member 402 are fixedly connected to the inner wall of the ring pipe body 1, and the telescopic support 401 is arranged between the waterproof rubber member 402 and the annular tube body 1, and one end of the telescopic support 401 is connected to the annular tube body 1, and the other end of the telescopic support 401 supports the waterproof rubber member 402 to abut against the outer wall of the jacking machine 6 or the outer wall of the jacking pipe 5, and the other end of the telescopic support 401 is provided with an arc-shaped pressure strip 403 supporting the waterproof rubber member 402, and the arc-shaped pressure strip 403 is elastic, and an elastic cable 404 is connected between the arc-shaped pressure strip 403 and the arc-shaped pressure strip 403 to drive the waterproof rubber member 402 to abut against the outer wall of the jacking machine 6 or the outer wall of the jacking pipe 5. The waterproof assembly 4 is provided with multiple groups, and the arc-shaped pressure strip 403 of one group of waterproof assemblies 4 in two adjacent groups is adapted to the elastic cable 404 of the other group of waterproof assemblies 4. Screws 4021 are arranged on both sides of the waterproof rubber member 402, and the screws 4021 are connected to the annular tube body 1. The water-stop rubber part 402 is also provided with a clamping ring 4022 on both sides, and the screw 4021 is fixed by passing through the clamping ring 4022. It also includes a pumping assembly, which includes a water pump and a water pumping pipe connected to each other. The water pumping pipe is inserted between the water-stop rubber part 402 and the outer wall of the jacking machine 6 and the jacking pipe 5 to suck water and mud. The mud guard 2 is provided with an inclined guide plate 201. The metal sealing door 3 is configured as a plurality of channel steels that fit closely side by side. The ring pipe body 1 is cast with concrete, and a reinforced steel mesh 102 is provided inside the ring pipe body 1. The telescopic support 401 is configured as an electric push rod, and the electric push rod is provided with a thrust meter for detecting thrust. The telescopic support 401 is configured as a telescopic pipe sleeve, and a spring is provided inside the telescopic pipe sleeve. The present invention also provides an application, which uses the water-stop ring pipe for the construction of a complex geological jacking pipe for the water-stopping of the jacking pipe 5.

[0052] Therefore, the water-stop ring pipe for the complex geological jacking construction hole and its application of the present invention have the beneficial effects of good sealing effect and ensuring construction safety.

[0053] The specific implementation methods described above further illustrate the objectives, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above description is only a specific implementation method of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A water-stop ring pipe for tunnel openings in complex geological jacking construction, characterized in that: include The annular pipe body (1) has a passage (101) through which a pipe jacking machine (6) and a pipe jacking machine (5) pass. A fender (2) is provided on one side of the annular pipe body (1), and a metal sealing door (3) is provided on the other side of the annular pipe body (1). Water-stop assembly (4): The water-stop assembly (4) comprises a telescopic support (401) and a water-stop rubber member (402), wherein the water-stop rubber member (402) is arranged along the inner wall of the annular tube body (1), and the two side edges of the water-stop rubber member (402) are fixedly connected to the inner wall of the annular tube body (1), the telescopic support (401) is arranged between the water-stop rubber member (402) and the annular tube body (1), and one end of the telescopic support (401) is connected to the annular tube body (1), and the other end of the telescopic support (401) supports the water-stop rubber member (402) to abut against the outer wall of the jacking machine (6) or the outer wall of the jacking pipe (5), The other end of the telescopic support (401) is provided with an arc-shaped pressure strip (403) supporting the waterproof rubber member (402); the arc-shaped pressure strip (403) is elastic; an elastic cable (404) is connected between the arc-shaped pressure strips (403) and drives the waterproof rubber member (402) to abut against the outer wall of the jacking machine (6) or the outer wall of the jacking pipe (5); The elastic rope (404) is shaped into an arched shape when not under pressure, and the arched portion is located on a side close to the telescopic support (401). After the elastic rope (404) contracts and arches, the arc-shaped pressure strips (403) are sequentially abutted to form a circle around the top pipe (5).

2. The water-stop ring pipe for tunnel opening in complex geological conditions according to claim 1 is characterized in that: The water-stopping components (4) are provided in a plurality of groups, and the arc-shaped pressure strips (403) of one group of the water-stopping components (4) in two adjacent groups are adapted to the elastic ropes (404) of the other group of the water-stopping components (4).

3. The water-stop ring pipe for tunnel opening in complex geological jacking construction according to claim 1 is characterized in that: Screws (4021) are provided on both sides of the water-stopping rubber member (402), and the screws (4021) are connected to the ring tube body (1). Clamping rings (4022) are also provided on both sides of the water-stopping rubber member (402), and the screws (4021) pass through the clamping rings (4022) for fixing.

4. The water-stop ring pipe for tunnel opening in complex geological conditions according to claim 1 is characterized in that: It also includes a water pumping assembly, which includes a water pump and a water pumping pipe that are connected to each other. The water pumping pipe is inserted between the water-stop rubber member (402) and the outer wall of the pipe jacking machine (6) and the pipe jacking (5) to suck water and mud.

5. The water-stop ring pipe for tunnel opening in complex geological conditions according to claim 1 is characterized in that: The fender (2) is provided with an inclined guide plate (201).

6. The water-stop ring pipe for tunnel opening in complex geological conditions according to claim 1 is characterized in that: The metal sealing door (3) is configured as a plurality of channel steels which are closely fitted side by side. The annular tube body (1) is cast with concrete, and a reinforcing steel mesh (102) is arranged inside the annular tube body (1).

7. The water-stop ring pipe for tunnel opening in complex geological conditions according to claim 1 is characterized in that: The telescopic support (401) is configured as an electric push rod, and the electric push rod is provided with a thrust meter (4011) for detecting thrust.

8. The water-stop ring pipe for tunnel opening in complex geological conditions according to claim 1 is characterized in that: The telescopic support (401) is configured as a telescopic sleeve, and a spring is arranged inside the telescopic sleeve.

9. An application of a water-stop ring pipe for tunnel openings in complex geological conditions as claimed in any one of claims 1 to 8, characterized in that: The water-stopping ring pipe for tunnel openings in complex geological jacking pipe construction is used for water-stopping of tunnel openings in jacking pipe construction.

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