A tunnel pipe section, underground pipe gallery

Abstract

The utility model discloses a tunnel pipe joint, underground pipe gallery, pipe joint main part is provided with the positioning structure for resisting slide, and positioning structure includes the anti -skid reserved hole for assembling anti -skid stake on pipe joint main part, or positioning structure includes the anti -skid tenon structure of integral prefabrication with pipe joint main part. The utility model provides two kinds of technical schemes, one is that tunnel pipe joint is provided with anti -skid reserved hole, and anti -skid reserved hole is used for assembling anti -skid stake when construction, and anti -skid stake is inserted with anti -skid reserved hole, and inserts stratum, can firmly position pipe joint main part, and then prevents tunnel pipe joint from slipping, thereby the tunnel pipe joint slipping problem caused by stratum unilateral partial load effect etc. is solved, and the second is that the section of pipe joint main part is designed as " inverted convex character " shape, that is, in the prefabrication production stage of tunnel pipe joint, anti -skid tenon structure is additionally arranged at pipe joint bottom, and the anti -skid groove is made in advance in the tail shield of heading machine, and anti -skid tenon structure is embedded in anti -skid groove to realize the anti -slip function.

Description

Technical Field

[0001] This utility model relates to the field of tunnel and underground engineering support structure technology, and in particular to a tunnel pipe section and underground pipe gallery. Background Technology

[0002] Under normal circumstances, the construction of open U-shaped tunnel boring machines requires stable forward excavation under the balanced compression of the strata on both sides. However, in the bustling areas of the main urban area, the use of open U-shaped tunnel boring machines to construct underground utility tunnels will undoubtedly have a significant impact on ground traffic and the operation of commerce in the area. Therefore, technicians have proposed that underground utility tunnels can be constructed on ditches or river slopes. This can not only avoid the aforementioned problems, but also widen the road surface to a certain extent and facilitate traffic.

[0003] However, for underground utility tunnels constructed on road slopes, ditches, and river slopes, the constructed tunnel sections will be subjected to unilateral eccentric loads on the ground. Once the unilateral eccentric load (referring to soil pressure, ground overload, etc.) exceeds the sliding friction resistance of the tunnel section, it will cause the section to move away from the ground, leading to ground loosening and cracking, and causing deviations between the actual tunnel laying route and the planned route. To address this problem, retaining structures (such as retaining piles) are generally used during construction. However, this undoubtedly increases construction procedures, extends the construction period, and increases construction costs.

[0004] The relevant technical solutions in the prior art can be divided into the following two types:

[0005] The first technical solution: The invention patent application with publication date of January 11, 2019 and publication number CN109183841A discloses a prefabricated pipe gallery assembly construction method based on a U-shaped shield tunneling machine. This method integrates the pipe gallery installation machine, pipe transport vehicle, U-shaped shield tunneling machine and excavator for integrated operation. The construction method includes three major steps: earthwork excavation in front of the shield tunneling machine, installation of prefabricated pipe gallery, and backfilling of the foundation pit. After the prefabricated pipe gallery is assembled in the tunneling machine, it is immediately backfilled, which can carry out pipe gallery construction safely and efficiently.

[0006] The second technical solution discloses a construction method for an integrated utility tunnel structure under a riverbed, as reported in the invention patent application CN107794942A, published on March 13, 2018. This integrated utility tunnel structure includes a tunnel structure and a retaining structure. The tunnel structure is a concrete-cast tunnel extending along the river channel. The retaining structure includes retaining piles vertically erected at the bottom of the riverbed. The tops of the retaining piles are connected and fixed by capping beams. Several parallel, spaced connecting beams are arranged between the two capping beams, and the bottoms of the connecting beams are connected and fixed to the upper part of the tunnel structure by columns. This structure and its construction method utilize the retaining structure and connect it to the tunnel body to form a unique riverbed structure.

[0007] Currently, most utility tunnel construction methods are similar to the first technical solution mentioned above, using U-shaped tunnel boring machines (TBMs) for underground utility tunnel construction. The excavation cross-section of the TBM is rectangular, and after the utility tunnel leaves the TBM, it is enclosed by the balanced strata on both sides, forming a stable whole with the surrounding strata. Utility tunnels constructed using this method do not involve unilateral pressure conditions, and the tunnel structure is not suitable for conditions with unilateral strata pressure or unbalanced strata pressure. The second technical solution mentioned above uses the method of pre-constructing retaining piles to resist lateral strata loads. The utility tunnel is constructed inside the retaining piles, and the utility tunnel is not subject to unilateral strata pressure. Although this method can solve the problem of unilateral strata pressure, the utility tunnel structure cannot independently resist unilateral strata loads. Moreover, the construction of retaining piles not only increases construction procedures and prolongs the construction period but also increases construction costs.

[0008] Given the above situation, how to achieve the anti-slip performance of tunnel segments and thus adapt to working conditions with unilateral ground bias or unbalanced ground pressure is an urgent technical problem to be solved.

[0009] It should be noted that the above technical information is intended only to enhance the understanding of the overall background technology of this utility model, and should not be regarded as an admission or in any form implying that the above technical information constitutes prior art known to those skilled in the art. Utility Model Content

[0010] To address the shortcomings in the aforementioned background technology, this utility model proposes a tunnel segment, the technical problem of which is: how to achieve the anti-slip performance of the tunnel segment.

[0011] The technical solution of this utility model is as follows:

[0012] A tunnel segment is disclosed, wherein the main body of the segment is provided with a positioning structure for anti-slip purposes. The positioning structure includes anti-slip pre-drilled holes for connecting the main body of the segment, and the anti-slip pre-drilled holes are used for assembling anti-slip piles; or the positioning structure includes an anti-slip tenon structure prefabricated integrally with the main body of the segment. This technical solution provides two types of technical solutions. The first is that the tunnel segment is provided with anti-slip pre-drilled holes. During construction, the anti-slip pre-drilled holes are used to assemble anti-slip piles. The anti-slip piles and the anti-slip pre-drilled holes are interlocked and inserted into the stratum, which can stably position the main body of the segment, thereby preventing the tunnel segment from slipping and solving the problem of tunnel segment slippage caused by unilateral eccentric loads on the stratum. The second is that the cross-section of the main body of the segment is designed as an "inverted convex" shape. That is, during the prefabrication stage of the tunnel segment, an anti-slip tenon structure is added to the bottom of the segment. By pre-fabricating an anti-slip groove at the tail of the tunneling machine (inside the tail shield), the anti-slip tenon structure at the bottom of the segment is embedded in the anti-slip groove to achieve the anti-slip function.

[0013] It should be noted that the anti-slip reserved holes do not only refer to holes reserved during the manufacturing process of tunnel segments, but also include holes processed after the tunnel segments are manufactured, such as holes processed on the main body of the segment using equipment such as water jets or cutting machines. The cross-sectional shape of the anti-slip reserved holes is preferably circular, but other shapes can also be used, such as elliptical, rectangular, or irregular shapes. As for the specific reserved location of the anti-slip reserved holes, under the technical guidance of the core concept of this technical solution, there are several options, such as setting them on the left side of the main body of the segment, the right side of the main body of the segment, or the bottom plate of the main body of the segment. In the axial direction of the main body of the segment, the anti-slip reserved holes can be set in the middle or at the ends. Furthermore, the number of anti-slip reserved holes also has various options. Guided by the purpose of preventing tunnel segment slippage, the number of anti-slip reserved holes can be one, two, three, four, etc., and the appropriate number and location can be selected based on various factors such as the geological environment, the size of the main body of the segment, and the size of the anti-slip piles.

[0014] Based on the above technical solutions, as a preferred technical solution for tunnel sections, the anti-slip pre-drilled hole is set on the bottom plate of the main body of the section, and the anti-slip tenon structure is located at the bottom of the main body of the section. This technical solution provides a preferred arrangement position for the anti-slip pre-drilled hole, that is, without changing the overall structure of the main body of the section, the anti-slip pre-drilled hole can be pre-drilled on its bottom plate. The preferred position is in the middle of the bottom plate, but it can also be pre-drilled at other positions on the bottom plate. It should be noted that, in order to improve the waterproofing effect, when the anti-slip pre-drilled hole is set on the bottom plate of the main body of the section, waterproofing treatment needs to be performed at the anti-slip pre-drilled hole.

[0015] Based on the above technical solutions, as a preferred technical solution for tunnel sections, at least one side of the main body of the section is provided with a wall toe, and at least one wall toe is provided with the anti-slip reserved hole. This technical solution not only provides another preferred arrangement position for the anti-slip reserved hole, but also provides a preferred tunnel section structure. By adding a wall toe, not only can the self-weight of the tunnel section be increased, but the arrangement of the anti-slip reserved hole can also be facilitated, making its layout more flexible. At the same time, since the wall toe is located outside the main body of the section, there is no need to consider waterproofing. It should be noted that the wall toe can be set on the left side of the main body of the section, the right side of the main body of the section, or both sides of the main body of the section. Furthermore, the reserved position of the anti-slip reserved hole also has multiple options; it can be reserved on the left wall toe of the main body of the section, the right wall toe of the main body of the section, or both sides of the wall toe can be arranged simultaneously. Moreover, the number of anti-slip reserved holes on the left and right wall toes can be the same or different, and the positions can be symmetrical or asymmetrical.

[0016] Based on the above technical solutions, as a preferred technical solution for tunnel segments, the main body of the segment can be a single-compartment segment, a double-compartment segment, or a multi-compartment segment. This technical solution provides various structural forms for the main body of the segment. Regardless of whether the main body is a single-compartment, double-compartment, triple-compartment, or even more-compartment segment, as long as anti-slip pre-reserved holes are provided on its bottom plate or on the toe wall, and it is matched with anti-slip piles during construction, tunnel segment slippage can be prevented. Furthermore, when the main body is a double-compartment or multi-compartment segment, there are more options for the location of the anti-slip pre-reserved holes.

[0017] Based on the above technical solutions, as a preferred technical solution for tunnel sections, the anti-slip pre-drilled hole and the anti-slip pile are integrated into a single structure through grouting. This technical solution provides a preferred assembly structure for the anti-slip pre-drilled hole and the anti-slip pile. Since there is inevitably a gap between the anti-slip pile and the anti-slip pre-drilled hole, grouting can form an integrated structure, realizing the connection between the anti-slip pile and the main body of the tunnel section, and effectively transmitting bias pressure.

[0018] Based on the above technical solutions, as a preferred technical solution for tunnel sections, when the anti-slip pre-reserved hole is located on the bottom plate of the main body of the section, a waterproof structure is provided between the anti-slip pre-reserved hole and the anti-slip pile. Preferably, the waterproof structure includes a cement slurry layer for auxiliary waterproofing, or a waterproof coating, waterproof rubber pad, etc.

[0019] Based on the above technical solutions, as a preferred technical solution for tunnel sections, the end faces of both ends of the main body of the section are "Z"-shaped socket contact surfaces, and waterproof sealing gaskets are provided on the "Z"-shaped socket contact surfaces. That is, the contact surface of the main body of the section is designed in a "Z" shape, and preferably a waterproof sealing gasket is provided in the middle of the "Z"-shaped contact surface. This structural design can increase the "shear resistance" between the contact surfaces of the section and avoid the reduction of waterproofing capacity caused by misalignment of the sealing gasket at the joint of the section.

[0020] An underground utility tunnel includes several tunnel segments as described in any of the above technical solutions, wherein each tunnel segment is connected end to end in sequence and is positioned by anti-slide piles.

[0021] Based on the above technical solutions, as a preferred technical solution for underground utility tunnels, the anti-slip piles and the anti-slip reserved holes are provided with several annular grooves, and the annular grooves are equipped with water-swellable rubber rings for waterproofing.

[0022] Based on the above technical solutions, as a preferred technical solution for underground utility tunnels, a pre-embedded grouting component is provided at the location where the anti-slide pile and the anti-slide pre-reserved hole are adapted. Grout is injected between the outer wall of the anti-slide pile and the inner wall of the anti-slide pre-reserved hole through the pre-embedded grouting component. Preferably, the pre-embedded grouting component includes a vertically arranged main channel and a horizontally arranged branch channel. The grout flows into the branch channel through the main channel and then enters the space between the outer wall of the anti-slide pile and the inner wall of the anti-slide pre-reserved hole.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] 1. The tunnel segment proposed in this utility model can be used in conjunction with anti-slide piles to resist unilateral ground pressure loads or unbalanced loads, and solve the problem of tunnel segment slippage caused by unilateral ground pressure. It can be widely applied to sloping locations such as rivers and ditches.

[0025] 2. During the construction of underground utility tunnels, the tunnel sections can be controlled by the propulsion cylinders of the tunnel boring machine and the anti-slip piles. This ensures the compression of the sealing gaskets and guarantees waterproof performance. At the same time, there is no need to install connecting bolts between tunnel sections, saving the bolt installation process, improving construction efficiency, and reducing project costs. In addition, it can also widen the road surface at the slope and facilitate traffic. Attached Figure Description

[0026] To more clearly illustrate the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 Schematic diagram of the construction section of the underground utility tunnel:

[0028] a) A wall toe is set on one side of the main body of the pipe section; b) A wall toe is set on both sides of the main body of the pipe section.

[0029] Figure 2 Schematic diagram of the completed underground utility tunnel construction:

[0030] c means that the main body of the pipe section is provided with a wall toe and anti-sliding reserved hole facing the bottom of the slope; d means that the main body of the pipe section is provided with a wall toe and anti-sliding reserved hole facing the soil-facing side; e means that the main body of the pipe section is provided with a wall toe and anti-sliding reserved hole on both sides.

[0031] Figure 3 Schematic diagram of the pile driving section of the pile driver:

[0032] f is an anti-slip reserved hole set on the wall toe on one side of the main body of the pipe section; g is an anti-slip reserved hole set on the wall toe on both sides of the main body of the pipe section; h is an anti-slip reserved hole set on the bottom plate of the main body of the pipe section.

[0033] Figure 4 Detailed assembly drawing of the anti-slide pile and the pre-drilled anti-slide hole:

[0034] i represents anti-slide piles installed on the toe of the wall on one side of the main body of the pipe section, and j represents anti-slide piles installed on the bottom plate of the main body of the pipe section.

[0035] Figure 5 A top view of a tunnel segment:

[0036] k means that a wall toe and anti-slip reserved hole are set on one side of the main body of the pipe section, and l means that a wall toe and anti-slip reserved hole are set on both sides of the main body of the pipe section;

[0037] Figure 6 This is a schematic diagram of the cross-section of the dual-compartment tube section;

[0038] Figure 7 A schematic diagram of a tunnel segment with an anti-slip tenon structure;

[0039] Figure 8 for Figure 4 A magnified view of a portion of the image;

[0040] Figure 9 for Figure 8 Enlarged view of the pre-embedded grouting component;

[0041] Explanation of icon numbers:

[0042] 1. Main pipe section; 1-1. Double-compartment pipe section; 101. Wall toe; 102. Anti-slip pre-drilled hole; 103. Anti-slip tenon structure; 104. Pipe section joint;

[0043] 2. Anti-slide piles; 201. Embedded grouting components; 2011. Main channel; 2012. Tributary channel; 202. Cement grout; 203. Water-swellable rubber ring; 204. Annular groove;

[0044] 3. Sealing gasket; 4. Pile driver; 5. Tunneling machine; 6. Slope; 7. Slope bottom; 8. Road surface. Detailed Implementation

[0045] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the core concept of the present utility model and the following embodiments, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0046] 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.

[0047] It should be noted that, in the description of this application, unless otherwise stated, "several" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "axial," "radial," etc., indicating orientation or positional relationships 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 on this application. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0048] 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.

[0049] 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.

[0050] 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.

[0051] 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.

[0052] This utility model proposes a tunnel segment that, by adding a wall toe to the cross-section of the segment and embedding anti-slip piles, can solve the problem of segment slippage caused by unilateral eccentric load on the stratum. At the same time, by using the fixing and restraining effect of the anti-slip piles on the segment, the connecting bolts between segments can be eliminated, thus eliminating the bolt installation process, reducing project costs and improving construction efficiency. In addition, the top space of the segment structure can be used to widen the road surface.

[0053] The tunnel segment proposed in this utility model mainly includes an anti-slip segment and a sealing gasket. It is constructed using equipment such as anti-slip piles and a pile-planting machine. Pre-drilled holes are set in the tunnel segment during prefabrication. During construction, an anti-slip pile is inserted along these holes using a pile-planting machine, thereby solving the problem of segment slippage caused by unilateral eccentric loads on the stratum. The core content mainly includes the following points:

[0054] 1. Add a wall toe to the pipe section section. Adding a wall toe can increase the self-weight of the pipe section.

[0055] 2. A wall toe can be added to one side of the cross-section or to both sides of the cross-section.

[0056] 3. Pipe sections can be configured as single-compartment or multi-compartment.

[0057] 4. Anti-slip pre-reserved holes are set on the wall toe of the pipe section.

[0058] 5. Use a mobile pile driver to implant anti-slide piles into the pre-drilled holes.

[0059] 6. The anti-slide pile is equipped with a pre-embedded grouting component, and the side of the anti-slide pile is provided with an annular groove.

[0060] 7. The pipe section adopts a socket-type interface design, that is, the contact surface of the pipe section is designed in a "Z" shape, and a waterproof sealing gasket installation groove is set in the middle of the "Z" shaped contact surface.

[0061] 8. No bolt holes are required on the pipe section cross-section.

[0062] 9. The anti-slip pre-reserved holes of the pipe section can also be set at the bottom of the internal structure of the pipe section. The mobile pile driver can then drive the anti-slip piles downward inside the pipe section to achieve the anti-slip function of the pipe section.

[0063] The specific implementation method is as follows:

[0064] A type of tunnel segment, such as Figure 1 As shown, the main body 1 of the tunnel segment is provided with a positioning structure for anti-slip purposes, which prevents the tunnel segment from slipping. The positioning structure includes anti-slip reserved holes 102 on the main body 1 of the tunnel segment for assembling anti-slip piles 2, or the positioning structure includes an anti-slip tenon structure 103 prefabricated integrally with the main body 1 of the tunnel segment.

[0065] This embodiment provides two types of embodiments. The first is that the tunnel segment 1 is provided with anti-slip reserved holes 102. During construction, the anti-slip reserved holes 102 are used to assemble anti-slip piles 2. The anti-slip piles 2 are interlocked with the anti-slip reserved holes 102 and inserted into the stratum, which can stably position the main body of the segment 1, thereby preventing the tunnel segment from slipping and solving the problem of tunnel segment slippage caused by unilateral eccentric load on the stratum. The second is that the cross-section of the main body of the segment 1 is designed as an "inverted convex" shape. That is, during the prefabrication and production stage of the tunnel segment, an anti-slip tenon structure 103 is added to the bottom of the segment. By pre-fabricating an anti-slip groove in the tail shield at the tail of the tunneling machine, the anti-slip tenon structure 103 at the bottom of the segment is embedded in the anti-slip groove to achieve the anti-slip function.

[0066] It should be noted that the anti-slip tenon structure 103 can be either a columnar structure or a plate-like structure, and its cross-sectional area can also be selected in various ways.

[0067] The anti-slip reserved hole 102 does not only refer to the hole reserved during the manufacturing process of the tunnel segment, but also includes the hole processed after the tunnel segment is manufactured, such as the hole processed on the main body 1 of the segment by water jet, cutting machine or other equipment.

[0068] like Figure 5 As shown, the cross-sectional shape of the anti-slip reserved hole 102 is preferably circular, but other shapes can also be used, such as elliptical, rectangular, irregular, etc.

[0069] like Figure 2 and Figure 3 As shown, the specific location of the anti-slip reserved hole 102 can be selected in various ways under the technical guidance of the core concept of this embodiment. For example, it can be set on the left side of the pipe section body 1, or on the right side of the pipe section body 1, or on the bottom plate of the pipe section body 1.

[0070] In the axial direction of the pipe section body 1, the anti-slip reserved hole 102 can be set in the middle position or at the end position.

[0071] In addition, there are multiple options for the number of anti-slip reserved holes 102. Under the guidance of preventing tunnel segment slippage, the number of anti-slip reserved holes 102 can be set to one, two, three, four, etc. The appropriate number and location can be selected based on various factors such as the geological environment, the size of the main body of the tunnel segment, and the size of the anti-slip pile 2.

[0072] Based on the above embodiments, as a preferred embodiment of the tunnel segment, such as... Figure 3 , Figure 4 As shown, the anti-slip pre-drilled hole 102 is provided on the bottom plate of the pipe section body 1; as Figure 7 As shown, the anti-slip tenon structure 103 is located at the bottom of the pipe section body 1.

[0073] This embodiment provides a preferred arrangement position for the anti-slip reserved hole 102, that is, without changing the overall structure of the pipe section body 1, the anti-slip reserved hole 102 can be reserved on its bottom plate. The specific position is preferably in the middle of the bottom plate, but it can also be reserved in other positions on the bottom plate.

[0074] It should be noted that, in order to improve the waterproofing effect, when the anti-slip reserved hole 102 is set on the bottom plate of the pipe section body 1, the anti-slip reserved hole 102 needs to be sealed and waterproofed. However, the anti-slip tenon structure 103 is located at the bottom of the pipe section body 1, so waterproofing is not a concern.

[0075] As a preferred embodiment of the tunnel segment, such as Figures 1 to 6 As shown, at least one side of the pipe section body 1 is provided with a wall toe 101, and at least one wall toe 101 is provided with the anti-slip reserved hole 102, without the need to provide the anti-slip reserved hole 102 on the bottom plate of the pipe section body 1.

[0076] This embodiment not only provides another preferred arrangement position for the anti-slip reserved hole 102, but also provides a preferred tunnel section structure. By adding a wall toe 101, not only can the self-weight of the tunnel section be increased, but the arrangement of the anti-slip reserved hole 102 can be facilitated, making its layout more flexible. At the same time, since the wall toe 101 is located outside the main body 1 of the section, there is no need to consider the waterproofing issue.

[0077] It should be noted that the wall toe 101 can be set on the left side of the pipe section body 1, the right side of the pipe section body 1, or both sides of the pipe section body 1. At the same time, the reserved position of the anti-slip reserved hole 102 also has multiple options. It can be reserved on the wall toe 101 on the left side of the pipe section body 1, or on the wall toe 101 on the right side of the pipe section body 1. It can also be arranged on both the left and right wall toes 101 at the same time. Moreover, the number of anti-slip reserved holes 102 on the left and right wall toes 101 can be the same or different, and the position can be symmetrical or asymmetrical.

[0078] Based on the above embodiments, as a preferred embodiment of the tunnel segment, such as... Figure 4 and Figure 6As shown, the main body 1 of the tunnel segment can be a single-compartment segment, a double-compartment segment 1-1, or a multi-compartment segment. This embodiment provides various structural forms of the main body 1 of the tunnel segment. Regardless of whether the main body 1 is a single-compartment, double-compartment, triple-compartment, or multi-compartment segment, as long as anti-slip pre-reserved holes 102 are provided on its bottom plate or on the wall toe 101, and are adapted to the anti-slip piles 2 during construction, tunnel segment slippage can be prevented. Furthermore, when the main body 1 is a double-compartment or multi-compartment segment, there are more options for the location of the anti-slip pre-reserved holes 102.

[0079] Based on the above embodiments, as a preferred embodiment of the tunnel segment, such as... Figure 4 As shown, the anti-slip reserved hole 102 and the anti-slip pile 2 are integrated into a single structure through grouting. This embodiment provides a preferred assembly structure for the anti-slip reserved hole 102 and the anti-slip pile 2. Since there is inevitably a gap between the anti-slip pile 2 and the anti-slip reserved hole 102, grouting can form an integrated structure, realizing the connection between the anti-slip pile 2 and the pipe section body 1, and effectively transmitting the bias pressure.

[0080] Based on the above embodiments, as a preferred embodiment of the tunnel segment, such as... Figure 4 As shown, when the anti-slip reserved hole 102 is located on the bottom plate of the pipe section body 1, a waterproof structure is provided between the anti-slip reserved hole 102 and the anti-slip pile 2. Preferably, the waterproof structure includes a cement slurry layer 202 for auxiliary waterproofing, or a waterproof coating, waterproof rubber pad, etc.

[0081] Based on the above embodiments, as a preferred embodiment of the tunnel segment, such as... Figure 5 As shown, the end faces of the pipe section body 1 at both ends are "Z"-shaped socket contact surfaces, and waterproof sealing gaskets 3 are provided on the "Z"-shaped socket contact surfaces. That is, the contact surface of the pipe section body 1 is designed in a "Z" shape, and preferably the waterproof sealing gasket 3 is provided in the middle of the "Z"-shaped contact surface. This structural design can increase the "shear resistance" between the contact surfaces of the pipe section and avoid the sealing gasket 3 at the pipe section joint 104 from being misaligned, which would cause a decrease in waterproofing ability.

[0082] As a preferred embodiment of the tunnel segment, such as Figure 1 and Figure 2 As shown, it mainly includes the anti-slide pipe section body 1, which is constructed by tunneling machine 5, anti-slide pile 2, sealing gasket 3, pile planting machine 4, etc.

[0083] Furthermore, a wall toe 101 is added to the pipe section section. The addition of the wall toe can increase the self-weight of the pipe section. Anti-slip reserved holes 102 are provided on the wall toe.

[0084] Furthermore, the main body of the pipe section 1 can have a wall toe 101 added to one side of the cross-section, or it can have a wall toe 101 added to both sides of the cross-section, as shown below. Figure 2As shown; the wall toe added on one side can face the soil-facing side or the slope bottom side.

[0085] Furthermore, the anti-slide pile 2 is provided with a pre-embedded grouting component 201. This type of anti-slide pile 2 is used to be installed at the wall toe 101 of the pipe section body 1. By injecting grout, such as quick-setting cement grout, into the pre-embedded grouting component 201, the anti-slide pile 2 and the pipe section body 1 are made into contact or connected, which effectively transmits the bias pressure.

[0086] Furthermore, the anti-slide pile 2 has an annular groove 204 on its side for installing a water-swellable rubber ring 203. This type of anti-slide pile 2 is used to install on the bottom plate inside the pipe section body 1. After installation, the water-swellable rubber ring 203 pre-installed between the anti-slide pile 2 and the pipe section body 1 achieves waterproofing inside the pipe gallery. At the same time, a cement slurry layer 202 for auxiliary waterproofing can be applied to the top of the anti-slide pile 2, such as... Figure 4 As shown.

[0087] Furthermore, such as Figure 5 As shown, the pipe section adopts a socket-type interface, that is, the contact surface of the pipe section is designed in a "Z" shape. A waterproof sealing gasket 3 is set in the middle of the "Z" shaped contact surface. This structural design can increase the "shear resistance" between the contact surfaces of the pipe section and avoid the sealing gasket 3 at the joint 104 of the pipe section from being misaligned, which would cause a decrease in waterproofing ability.

[0088] Furthermore, the utility tunnel can be configured as a single-compartment pipe section 1, such as... Figure 6 As shown, it can also be set as a multi-compartment tube section 1-1 to adapt to actual needs.

[0089] Furthermore, when assembling a new ring of pipe sections within the fifth tail shield of the tunnel boring machine (TBM), the TBM's jacking cylinder is typically used to push the pipe section into place to ensure that the gasket compression or pipe section spacing meets the design values. However, if the jacking cylinder retracts, the gasket will spring back, causing the pipe section to move backward. Constructing anti-slip piles can fix and constrain the pipe section, preventing backward movement caused by gasket springback. This allows control over the gasket compression or pipe joint opening, achieving effective waterproofing of the gasket.

[0090] Furthermore, by utilizing the anti-slide piles 2 to constrain the movement of the pipe sections in the tunneling direction and the normal direction of the tunneling direction, the position of the pipe sections is relatively fixed after assembly. That is, there is no need to install connecting bolts between the pipe sections, which reduces the bolt installation process, improves construction efficiency, and reduces project cost.

[0091] Furthermore, to facilitate the installation of anti-slide piles 2 on the pipe section, a mobile pile driver 4 is used to install anti-slide piles 2 one by one along the reserved hole 102. The anti-slide piles 2 must be installed before the top push cylinder of the tunneling machine leaves the pipe section.

[0092] Based on the above equipment and structure, this embodiment proposes the following construction steps for underground utility tunnels:

[0093] When the tunnel boring machine 5 is installing the tunnel section, the jacking cylinder is used to push the section into place according to the design spacing of the section joint 104. The anti-slide pile 2 is driven down along the reserved hole 102 of the section to the design elevation. If the reserved hole is on the bottom surface inside the section, after the anti-slide pile 2 is implanted, the reserved hole 102 also needs to be sealed and waterproofed.

[0094] After the underground utility tunnel is completed, the top of the tunnel will be backfilled and the road surface will be constructed.

[0095] Note: The proposed tunnel segment structure can effectively resist unilateral eccentric loads or unbalanced loads on the stratum. It is widely applicable to the construction of pipe galleries on slopes such as rivers and ditches. While achieving anti-slip function, it eliminates the bolt installation process in traditional pipe gallery structures, which not only reduces project costs and improves construction efficiency, but also widens the road surface on slopes.

[0096] An underground utility tunnel includes several tunnel sections as described in any of the above embodiments. Each tunnel section is connected end to end in sequence and is positioned by anti-slip piles 2, which can eliminate the need for connecting bolts between adjacent tunnel sections.

[0097] Based on the above embodiments, as a preferred embodiment of the underground utility tunnel, such as... Figure 8 As shown, the anti-slip pile 2 is provided with several annular grooves 204 at the part that matches the anti-slip reserved hole 102, and the annular grooves 204 are equipped with water-swellable rubber rings 203 for waterproofing.

[0098] Based on the above embodiments, as a preferred embodiment of the underground utility tunnel, such as... Figure 8 and Figure 9 As shown, a pre-embedded grouting component 201 is provided at the part of the anti-slide pile 2 that is adapted to the anti-slide reserved hole 102, and grout is injected between the outer wall of the anti-slide pile 2 and the inner wall of the anti-slide reserved hole 102 through the pre-embedded grouting component 201.

[0099] Preferably, the pre-embedded grouting component 201 includes a vertically arranged main channel 2011 and a horizontally arranged branch channel 2012. The grout flows into the branch channel 2012 through the main channel 2011 and then enters the space between the outer wall of the anti-slip pile 2 and the inner wall of the anti-slip reserved hole 102.

[0100] Preferably, the pre-embedded grouting component 201 has a "tree branch" structure, and its main trunk and branch structures are all hollow tubes; when producing the anti-slide pile 2, the pre-embedded grouting component 201 needs to be fixed in the mold for producing the anti-slide pile 2 in advance.

[0101] Main function: After the anti-slide pile 2 is inserted into the reserved hole in the toe of the pipe section wall or the bottom surface of the pipe section, grout, such as quick-setting cement grout, is injected into the hollow pipe opening at the top of the pre-embedded grouting part 201 through grouting equipment to achieve contact connection between the anti-slide pile 2 and the pipe section structure. This avoids the pipe section from moving due to the gap between the anti-slide pile and the reserved hole in the pipe section (toe of the wall or the bottom surface of the pipe section). At the same time, grouting can increase the contact area between the two. If there is a gap and the two are in line contact, then after grouting, they will be in surface contact, which can effectively transmit the bias force.

[0102] Any aspects of this utility model that are not detailed herein are conventional technical means known to those skilled in the art.

[0103] The above content shows and describes the basic principles, main features, and beneficial effects of this utility model. The above description is merely a preferred embodiment of this utility model and is not intended to limit it. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A tunnel segment, comprising a segment body (1), characterized in that: The pipe section body (1) is provided with a positioning structure for anti-slip; the positioning structure includes an anti-slip reserved hole (102) connected to the pipe section body (1), the anti-slip reserved hole (102) is used to assemble anti-slip piles (2); or the positioning structure includes an anti-slip tenon structure (103) prefabricated integrally with the pipe section body (1).

2. The tunnel segment according to claim 1, characterized in that: The anti-slip pre-drilled hole (102) is set on the bottom plate of the pipe section body (1), and the anti-slip tenon structure (103) is located at the bottom of the pipe section body (1).

3. The tunnel segment according to claim 1 or 2, characterized in that: The pipe section body (1) has a wall toe (101) on at least one side, and the anti-slip reserved hole (102) is provided on at least one wall toe (101).

4. The tunnel segment according to claim 3, characterized in that: The main body of the pipe section (1) is a single-compartment pipe section, a double-compartment pipe section, or a multi-compartment pipe section.

5. The tunnel segment according to any one of claims 1, 2, and 4, characterized in that: The anti-slip reserved hole (102) and the anti-slip pile (2) are integrated into a single structure through grouting.

6. The tunnel segment according to claim 5, characterized in that: When the anti-slip reserved hole (102) is located on the bottom plate of the pipe section body (1), a waterproof structure is provided between the anti-slip reserved hole (102) and the anti-slip pile (2).

7. The tunnel segment according to any one of claims 1, 2, 4, and 6, characterized in that: The end faces of the main body of the pipe section (1) are "Z" shaped socket contact surfaces, and waterproof sealing gaskets (3) are provided on the "Z" shaped socket contact surfaces.

8. An underground utility tunnel, characterized in that: It includes several tunnel segments as described in any one of claims 1-7, wherein each tunnel segment is connected end to end in sequence and is positioned by anti-slide piles (2).

9. The underground utility tunnel according to claim 8, characterized in that: The anti-slide pile (2) is provided with several annular grooves (204) at the part that matches the anti-slide reserved hole (102), and the annular grooves (204) are equipped with water-swellable rubber rings (203) for waterproofing.

10. The underground utility tunnel according to claim 8 or 9, characterized in that: The anti-slide pile (2) is provided with a pre-embedded grouting component (201) at the part that matches the anti-slide reserved hole (102), and grout is injected between the outer wall of the anti-slide pile (2) and the inner wall of the anti-slide reserved hole (102) through the pre-embedded grouting component (201).

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