Synchronous secondary lining construction system and construction method thereof

Abstract

The invention discloses a synchronous secondary lining construction system which comprises a pipeline extending device connected to a trailer, and a walking table pouring trolley and a secondary lining trolley are sequentially arranged behind the trailer. The walking table pouring trolley comprises walking table pouring trolley walking units used for walking on the two sides of the box culvert and a walking table pouring unit used for pouring a walking supporting structure of the secondary lining trolley on the outer side of the box culvert, and a pipeline tool used for positioning a slurry pipeline on the box culvert or the cast-in-place ground is arranged behind the pipeline extending device. The invention further discloses a synchronous secondary lining construction method which adopts the synchronous secondary lining construction system. After the technical scheme provided by the invention is adopted, secondary lining construction can be carried out at the tail part of the slurry balance shield tunneling machine, tunneling, pipe piece splicing and secondary lining construction of the slurry balance shield tunneling machine can be synchronously carried out, and the problem that a secondary lining trolley and a pipeline working area are overlapped during secondary lining construction of a traditional slurry balance shield tunneling machine is effectively solved.

Description

Technical Field

[0001] The invention relates to the technical field of tunnel secondary lining construction, in particular to a synchronous secondary lining construction system and a construction method thereof. Background Art

[0002] Pipeline extension is an important step in the construction of a slurry shield machine. During the operation of the slurry shield machine, the mud pipe must not only not be disconnected, but also needs to be continuously extended as the main machine moves forward. At present, the mud pipes in various forms of pipeline extension devices need to be hung on the wall of the tunnel segment through tooling, which will affect the subsequent secondary lining construction of the tunnel, such as the construction of walkways on both sides of the railway tunnel, the construction of the side walls of the highway tunnel, the secondary lining of the river tunnel and other subsequent construction processes. Therefore, before the construction of the secondary lining of the tunnel, the pipelines on the tunnel wall need to be arranged for the second time. This process requires the pipelines to be disconnected, causing the slurry shield machine to stop, affecting the overall construction efficiency of the tunnel.

[0003] In summary, how to achieve synchronous secondary lining during tunnel excavation construction, especially how to perform synchronous secondary lining during slurry shield machine excavation construction, is a technical problem that needs to be solved urgently.

[0004] It should be particularly noted that the above technical information is only intended to deepen the understanding of the overall background technology of the present invention, and should not be regarded as admitting or implying in any form that the above technical information constitutes the prior art already known to those skilled in the art. Summary of the invention

[0005] In view of the deficiencies in the above-mentioned background technology, the present invention proposes a synchronous secondary lining construction system and a construction method thereof, and the technical problem to be solved is: how to perform synchronous secondary lining during the excavation construction process of a slurry shield machine.

[0006] The technical solution of this application is: A synchronous secondary lining construction system includes a pipeline extension device connected to a trailer, a walking platform casting trolley and a secondary lining trolley are sequentially arranged at the rear of the trailer, the walking platform casting trolley includes a walking platform casting trolley walking unit for walking on both sides of the box culvert, and a walking platform casting unit for casting the walking support structure of the secondary lining trolley outside the box culvert, and a pipeline tooling for positioning the mud pipeline on the box culvert or cast-in-place ground is arranged at the rear of the pipeline extension device. The synchronous secondary lining construction system provided by this technical solution can perform secondary structure lining casting while the slurry shield machine is excavating. Specifically, during the excavation construction of the slurry shield machine, the pipeline extension device can synchronously add pipes, and then synchronously extend the mud pipes. The mud pipeline behind the pipeline extension device can be directly fixed on the box culvert through the pipeline tooling to avoid hanging the mud pipeline on the pipe segment and affecting the secondary structure construction behind. When fixing the mud pipeline on the box culvert, it is necessary to avoid interference with the secondary lining trolley and material transfer equipment. Therefore, the walking platform casting trolley is used as the walking support structure of the secondary lining trolley. When the secondary lining trolley walks on the walking support structure to cast the secondary lining structure, it will not interfere with the mud pipeline and material transfer equipment. Furthermore, the walking platform casting trolley and the secondary lining trolley are equipped with independent walking units, which can greatly improve the flexibility of construction without having to move synchronously with the trailer all the time.

[0007] On the basis of the above technical solution, as the preferred technical solution of the synchronous secondary lining construction system, a relay pump for positioning on the box culvert is arranged behind the pipeline extension device, and the relay pump is used to pump the mud in the mud pipeline. This technical solution provides a better layout scheme. As the tunnel excavation progresses, the mud pipeline becomes longer and longer, and a relay pump is required to relay the mud pumping. The relay pump is arranged on the box culvert, which can improve the space utilization rate and avoid interference with the construction of the walking platform casting trolley and the secondary lining casting trolley.

[0008] On the basis of the above technical scheme, as the preferred technical scheme of the synchronous secondary lining construction system, the secondary lining trolley is a secondary lining casting trolley or a secondary lining assembly trolley. When the secondary lining trolley is a secondary lining casting trolley, it also includes a transport vehicle for transporting casting materials to the walking platform casting trolley and the secondary lining casting trolley. The present technical scheme provides two preferred structural modes of the secondary lining trolley, one of which is a secondary lining casting trolley for cast-in-place secondary lining structure, and the other is a secondary lining assembly trolley for assembling prefabricated secondary lining parts. At the same time, the present technical scheme provides a transport vehicle and a more optimal layout scheme, preferably arranging the mud pipeline and the relay pump on the same side of the box culvert, and allowing the transport vehicle to pass on the other side of the box culvert. Preferably, the transport vehicle adopts a rubber-wheeled transport vehicle.

[0009] On the basis of the above technical solution, as the preferred technical solution of the synchronous secondary lining construction system, the pipeline extension device includes a structural assembly connecting the pipeline assembly, and a mud pipe crane connected to the trailer through a crane frame that can move forward, backward, left and right, and the structural assembly actively moves forward and backward along the track on the trailer through a motion unit. The pipeline extension device in this technical solution can not only drive the pipeline assembly to move forward and backward relative to the trailer through the structural assembly, but also drive the mud pipe crane to move forward, backward, left and right through the crane frame. At the same time, the movement of the pipeline assembly and the movement of the mud pipe crane are independent of each other, which can make the pipe adding operation during pipeline extension more convenient and accurate.

[0010] On the basis of the above technical scheme, as the preferred technical scheme of the synchronous secondary lining construction system, the pipeline extension device includes an elastic support wheel for supporting the mud pipe at the interface of the pipeline assembly above the box culvert, and a hoisting support for hoisting the mud pipe at the interface of the pipeline assembly. This technical scheme provides a more reliable positioning structure at the pipeline extension, specifically refers to the reliable positioning of the slurry inlet pipe and the slurry discharge pipe in the pipeline assembly. This is because the slurry inlet pipe and the slurry discharge pipe in the pipeline assembly are used to connect the mud pipeline in front of the trailer with the mud pipeline at the rear of the trailer. Since the horizontal height of the mud pipeline in front of the trailer is higher and the horizontal height of the mud pipeline at the rear of the trailer is lower, the slurry inlet pipe and the slurry discharge pipe in the pipeline assembly are both curved pipes used for transition, and the use of elastic support wheels and hoisting supports can more reliably position and support them.

[0011] On the basis of the above technical scheme, as the preferred technical scheme of the synchronous secondary lining construction system, the walking platform casting trolley includes a walking platform casting trolley frame supported on the walking unit of the walking platform casting trolley, the walking platform casting trolley frame is connected to the walking platform casting unit and the adjustment tooling for supporting the formwork of the walking support structure, and the walking platform casting unit is used to cast the casting cavity between the adjustment tooling, the box culvert and the pipe segment.

[0012] On the basis of the above technical scheme, as the preferred technical scheme of the synchronous secondary lining construction system, the secondary lining pouring trolley includes a secondary lining pouring trolley frame connected to the secondary lining pouring trolley walking unit, the secondary lining pouring trolley frame is connected to the secondary lining forming formwork, a shape adjustment tooling for adjusting the secondary lining forming formwork, and a secondary lining pouring unit for pouring in the pouring cavity between the secondary lining forming formwork and the pipe segment and the walking support structure.

[0013] On the basis of the above technical scheme, as the preferred technical scheme of the synchronous secondary lining construction system, the secondary lining pouring trolley includes a grouting detection unit for detecting the grouting effect. The grouting detection unit is equipped with radar and other detection devices for detecting whether there are voids after grouting, and performing secondary grouting in places where grouting is insufficient.

[0014] On the basis of the above technical solution, as a preferred technical solution of the synchronous secondary lining construction system, the walking platform casting unit and the secondary lining casting unit both include a pressure sensor for detecting the pressure in the grouting pipe, which can detect whether the grouting is sufficient.

[0015] A synchronous secondary lining construction method adopts the synchronous secondary lining construction system described in any of the above technical solutions. During the excavation construction of a slurry balance shield machine, the mud pipe is synchronously extended by a pipeline extension device, the mud pipeline is synchronously positioned on the box culvert by pipeline tooling, and the walking support structure of the secondary lining casting trolley is synchronously cast by a walking platform casting trolley. The secondary lining casting trolley casts the secondary lining structure while walking on the walking support structure.

[0016] The present invention proposes a synchronous secondary lining construction system and a synchronous secondary lining construction method. Compared with the prior art, the mud pipeline is placed on the box culvert or cast-in-place ground at the rear of the trailer for the first time. While the slurry shield machine is excavating, the secondary lining construction can be carried out at the rear of the slurry shield machine. The excavation of the slurry shield machine, the assembly of pipe segments, and the secondary lining construction can be carried out simultaneously, which effectively solves the problem of overlapping of the secondary lining trolley and the pipeline working area during the secondary lining construction of the traditional slurry shield machine. The technical solution provided by the present invention does not require additional construction costs. On the contrary, it can save the manpower and material costs invested in turning over the pipe, and there is no need to stop the machine for operation during the secondary lining construction, which greatly improves the construction efficiency. With the development of underground space, the demand for tunnels is increasing, and there are more and more projects for slurry shield machine construction. Similarly, there are more and more tunnels that require secondary linings. The application scope and use value of the present invention are also becoming more and more broad. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying any creative work.

[0018] Figure 1 It is the layout diagram of the synchronous secondary lining construction system; Figure 2 It is the layout diagram of pipelines and equipment in tunnel section; Figure 3 This is the cross-section of the tunnel at the pipeline extension device; Figure 4 This is the tunnel cross section at the casting trolley of the walking platform; Figure 5 This is the tunnel cross section at the casting trolley for the second lining; Figure 6 This is an enlarged view of the pipeline tooling.

[0019] Description of Figure Numbers: Trailer 1; Pipeline extension device 2, structural assembly 201, pipeline assembly 202, mud pipe crane 203 elastic support wheel 204, hoisting support 205, crane frame 206; Walking platform casting trolley 3, walking platform casting trolley frame 301, adjustment tooling 302, walking platform casting unit 303, walking platform casting trolley walking unit 304; Secondary lining pouring trolley 4, secondary lining pouring trolley frame 401, secondary lining forming template 402, shape adjustment tooling 403, secondary lining pouring unit 404, grouting detection unit 405, secondary lining pouring trolley walking unit 406; Box culvert 6; Mud pipeline 7, slurry inlet pipeline 701, slurry discharge pipeline 702; Pipeline tooling 8, pipeline layout tooling 801, high-voltage cable 803, water pipe 804; Relay pump 9; Transport vehicle 10; Air duct 11; Walking support structure 12; Second lining structure 13. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the core concept of the present invention and the following embodiments, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] The present application provides these embodiments to make the present application thorough and complete, and to fully express the scope of the present application to those skilled in the art. It should be noted that unless otherwise specifically stated, the relative arrangement of the parts and steps, the composition of the materials, the numerical expressions and the numerical values ​​set forth in these embodiments should be interpreted as being merely exemplary, and not as limiting.

[0022] It should be noted that, in the description of this application, unless otherwise specified, the meaning of "several" is greater than or equal to two; the terms "upper", "lower", "left", "right", "inner", "outer", "axial", "radial" and the like indicate positions or positional relationships 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 position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation on this application. When the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0023] In addition, the words "first", "second" and similar words used in this application do not indicate any order, quantity or importance, but are only used to distinguish different parts. "Vertical" does not mean vertical in the strict sense, but is within the tolerance range. "Parallel" does not mean parallel in the strict sense, but is within the tolerance range. "Include" or "comprising" and similar words mean that the elements before the word include the elements listed after the word, and do not exclude the possibility of including other elements.

[0024] It should also be noted that in the description of this application, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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, or it can be internal communication between two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances. When a specific device is described as being located between a first device and a second device, there may or may not be an intermediate device between the specific device and the first device or the second device.

[0025] All terms used in this application have the same meaning as those understood by those of ordinary skill in the art to which this application belongs, unless otherwise specifically defined. It should also be understood that terms defined in general dictionaries, such as general dictionaries, should be interpreted as having a meaning consistent with their meaning in the context of the relevant technology, and should not be interpreted in an idealized or extremely formal sense, unless explicitly defined herein.

[0026] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered part of the specification.

[0027] One object of the present invention is to provide a synchronous secondary lining construction system, which can meet the requirements of synchronous secondary lining construction during the construction of a slurry balance shield machine, avoid secondary pipeline layout operations during subsequent secondary lining construction, and realize synchronous assembly of the secondary lining without stopping the machine, thereby improving construction efficiency and reducing construction procedures.

[0028] To achieve the above-mentioned purpose, the present invention is composed of: a trailer, a pipeline extension device, a pipeline layout tool, a second lining trolley, etc. The trailer provides support for the pipeline extension device; the pipeline extension device is composed of a structural assembly, a pipeline assembly, and a mud pipe hoist. The structural assembly is the pipeline support of the entire pipe replacement device and a walking unit on the trailer. The pipeline assembly is a mud pipeline that meets the requirements of slurry inlet and outlet. The mud pipe hoist is used to lift the mud pipe during pipe extension; the pipeline layout tool is a device designed to support the pipeline to meet the requirements of pipeline extension and synchronous second lining; the second lining trolley is a walking frame unit that performs synchronous second lining construction at the tail of the shield machine while the slurry balance shield machine is excavating. It has the functions of walking, planting reinforcement, pouring, screeding, etc., and can realize the assembly of tunnel shield construction segments, the second lining walking platform, and the synchronous forming of the second lining arc segments.

[0029] In the present invention, by changing the previous way of fixing the slurry inlet and outlet pipes on the inner wall of the segment, a new pipeline extension device and tooling are designed, the slurry inlet and outlet pipes are placed on the box culvert or cast-in-place ground, and at the same time, the remaining pipelines (such as water pipes, high-voltage cables, etc.) that assist the slurry balance shield machine in excavation are also placed on the box culvert or cast-in-place ground through the tooling. At this time, there are no other pipelines on the inner wall of the segment; a trolley for secondary lining construction is carried at the tail of the shield machine, which is divided into a walking platform construction trolley and an arc segment construction trolley. Since there are no other obstacles on the inner wall of the segment, there is no need to perform secondary pipeline operation during the secondary lining construction. The secondary lining construction can be carried out synchronously at the tail of the shield machine while the slurry balance shield machine is excavating. The two can be carried out at the same time. The secondary lining construction trolley has the functions of walking, planting reinforcement, pouring, screeding, etc., and can realize integrated molding without the need for secondary construction. The pipeline extension device and the secondary lining trolley in this construction method take into account aspects such as material transportation, ventilation pipe layout, and pipeline layout, and is a more comprehensive solution for the secondary lining construction of a slurry shield machine.

[0030] Therefore, according to the present invention, the secondary lining construction of the shield can be realized more efficiently, the problem of secondary layout of pipelines during subsequent tunnel construction is solved, the secondary lining construction is carried out while excavating, and subsequent repeated construction is avoided, the construction process is reduced, and the construction efficiency is improved. Moreover, the construction method is simple and feasible, and the device is simple and easy to manufacture, and can be widely used in tunnel construction.

[0031] The specific embodiments are as follows: A synchronous secondary lining construction system, such as Figure 1 and Figure 5As shown, it includes a pipeline extension device 2 connected to a trailer 1, and a walking platform casting trolley 3 and a secondary lining trolley 4 are sequentially arranged at the rear of the trailer 1. The walking platform casting trolley 3 includes a walking platform casting trolley walking unit 304 for walking on both sides of the box culvert 6, and a walking platform casting unit 303 for casting a walking support structure 12 of the secondary lining trolley 4 on the outside of the box culvert 6. A pipeline tooling 8 for positioning the mud pipeline 7 on the box culvert 6 or the cast-in-place ground is arranged at the rear of the pipeline extension device 2.

[0032] The synchronous secondary lining construction system provided in this embodiment can perform secondary structure lining pouring while the slurry shield machine is excavating. Specifically, during the excavation of the slurry shield machine, the pipeline extension device 2 can synchronously add pipes, and then synchronously extend the mud pipe. The mud pipeline 7 behind the pipeline extension device 2 can be directly fixed on the box culvert 6 through the pipeline tooling 8 to avoid hanging the mud pipeline 7 on the pipe segment 5 and affecting the secondary structure construction behind. Fixing the mud pipeline 7 on the box culvert 6 needs to avoid interference with the secondary lining trolley and material transfer equipment. Therefore, the walking support structure 12 of the secondary lining trolley is constructed by the walking platform casting trolley 3. When the secondary lining trolley walks on the walking support structure 12 to cast the secondary lining structure 13, it will not interfere with the mud pipeline 7 and the material transfer equipment.

[0033] Furthermore, the walking platform casting trolley 3 and the secondary lining trolley are both equipped with independent walking units, which can greatly improve the flexibility of construction without having to always move synchronously with the trailer 1.

[0034] Based on the above embodiments, as a preferred embodiment of the synchronous secondary lining construction system, Figure 2 As shown, a relay pump 9 for positioning on the box culvert 6 is arranged at the rear of the pipeline extension device 2, and the relay pump 9 is used to pump the mud in the mud pipeline 7. This embodiment provides a better arrangement scheme. As the tunnel excavation progresses, the mud pipeline 7 becomes longer and longer, and a relay pump 9 is required to relay the mud pumping. The relay pump 9 is arranged on the box culvert 6, which can improve the space utilization rate and avoid interference with the construction of the walking platform casting trolley 3 and the secondary lining casting trolley 4.

[0035] Based on the above embodiments, as a preferred embodiment of the synchronous secondary lining construction system, Figure 4As shown, the second lining trolley is a second lining casting trolley or a second lining assembly trolley. When the second lining trolley is a second lining casting trolley, it also includes a transport vehicle 10 for transporting casting materials to the walking platform casting trolley 3 and the second lining casting trolley 4. This embodiment provides two preferred structural modes of the second lining trolley, one of which is a second lining casting trolley 4 for a cast-in-place second lining structure 13, and the other is a second lining assembly trolley for assembling prefabricated second lining parts. At the same time, this embodiment provides a transport vehicle 10 and a more optimal arrangement scheme, preferably arranging the mud pipeline 7 and the relay pump 9 on the same side of the box culvert 6, and allowing the transport vehicle 10 to pass on the other side of the box culvert 6. Preferably, the transport vehicle 10 adopts a rubber-wheeled transport vehicle.

[0036] Based on the above embodiments, as a preferred embodiment of the synchronous secondary lining construction system, Figure 3 As shown, the pipeline extension device 2 includes a structural assembly 201 connected to the pipeline assembly 202, and a mud pipe crane 203 connected to the trailer 1 through a crane frame 206 that can move forward, backward, left and right. The structural assembly 201 actively moves forward and backward along the track on the trailer 1 through a motion unit. The pipeline extension device 2 in this embodiment can not only drive the pipeline assembly 202 to move forward and backward relative to the trailer 1 through the structural assembly 201, but also drive the mud pipe crane 203 to move forward, backward, left and right through the crane frame 206. At the same time, the movement of the pipeline assembly 202 and the movement of the mud pipe crane 203 are independent of each other, which can make the pipe adding operation during pipeline extension more convenient and accurate.

[0037] On the basis of the above-mentioned embodiment, as a preferred embodiment of the synchronous secondary lining construction system, the pipeline extension device 2 includes an elastic support wheel 204 for supporting the mud pipe at the interface of the pipeline assembly 202 above the box culvert 6, and a hoisting support 205 for hoisting the mud pipe at the interface of the pipeline assembly 202. This embodiment provides a more reliable positioning structure at the pipeline extension, specifically refers to reliable positioning of the slurry inlet pipe and the slurry discharge pipe in the pipeline assembly 202, because the slurry inlet pipe and the slurry discharge pipe in the pipeline assembly 202 are used to connect the slurry pipeline in front of the trailer 1 with the slurry pipeline 7 behind the trailer 1. Since the horizontal height of the slurry pipeline in front of the trailer 1 is higher, and the horizontal height of the slurry pipeline 7 behind the trailer 1 is lower, the slurry inlet pipe and the slurry discharge pipe in the pipeline assembly 202 are both curved pipes used for transition, and the elastic support wheel 204 and the hoisting support 205 can be used to more reliably position and support them.

[0038] Based on the above embodiments, as a preferred embodiment of the synchronous secondary lining construction system, Figure 4As shown, the walking platform casting trolley 3 includes a walking platform casting trolley frame 301 supported on the walking platform casting trolley walking unit 304, the walking platform casting trolley frame 301 is connected to the walking platform casting unit 303 and the adjustment tooling 302 for supporting the formwork of the walking support structure 12, and the walking platform casting unit 303 is used to cast the casting cavity between the adjustment tooling 302, the box culvert 6 and the pipe segment 5.

[0039] Based on the above embodiments, as a preferred embodiment of the synchronous secondary lining construction system, Figure 5 As shown, the secondary lining pouring trolley 4 includes a secondary lining pouring trolley frame 401 connected to the secondary lining pouring trolley walking unit 406, and the secondary lining pouring trolley frame 401 is connected to a secondary lining forming template 402, a shape adjustment tool 403 for adjusting the secondary lining forming template 402, and a secondary lining pouring unit 404 for pouring in the pouring cavity between the secondary lining forming template 402 and the pipe segment 5 and the walking support structure 12.

[0040] On the basis of the above embodiments, as a preferred embodiment of the synchronous secondary lining construction system, the secondary lining pouring trolley 4 includes a grouting detection unit 405 for detecting the grouting effect. The grouting detection unit 405 is equipped with detection devices such as radar to detect whether there are voids after grouting, and perform secondary grouting in places where grouting is insufficient.

[0041] On the basis of the above-mentioned embodiment, as a preferred embodiment of the synchronous secondary lining construction system, the walking platform casting unit 303 and the secondary lining casting unit 404 both include a pressure sensor for detecting the pressure in the grouting pipe, which can detect whether the grouting is sufficient.

[0042] As a preferred embodiment of the synchronous secondary lining construction system, Figure 1 As shown, it includes a trailer 1, a pipeline extension device 2, a walking platform casting trolley 3, a secondary lining casting trolley 4 which is an arc-shaped secondary lining casting trolley, a pipe segment 5, a box culvert 6, and a mud pipeline 7; Figure 2 The tunnel section pipeline and equipment layout is shown, including pipeline tooling 8, relay pump 9, rubber-wheeled transport vehicle 10, and air duct 11. The trailer 1 is the bearing unit of the pipeline extension device 2, which is generally a steel structure and is used for equipment layout and bearing moving parts, and moves with the shield machine.

[0043] The pipeline extension device 2 is used to extend the mud pipeline when the slurry shield machine is excavating. Figure 3It is shown that the pipeline extension device 2 is equipped with a structural assembly 201 with a motion unit, which can actively move forward and backward along the track on the trailer 1 and provide support for the pipeline assembly 202; the pipeline assembly 202 is divided into a slurry inlet pipe and a slurry discharge pipe, which are used for slurry inlet and slurry discharge during the excavation of the slurry balance shield machine; the mud pipe crane 203 is arranged on a crane frame 206 that can move forward and backward and left and right, and is equipped with a lifting mechanism for lifting the spare mud pipe to the pipeline extension area; the support wheel 204 is an elastic support wheel, which is used to compensate for the height difference caused by the unevenness of the box culvert 6 or the poured ground, and is used to support the slurry inlet pipe to prevent it from transmitting force to the trailer and causing the trailer to be overloaded, and at the same time provide support after the pipeline is disconnected for pipe replacement; the lifting support 205 is used to lift the slurry discharge pipe to prevent it from swinging freely and provide support for it in the vertical direction.

[0044] The walking platform casting trolley 3 is a walking platform forming trolley, which is used for shaping, casting, testing, etc. of the walking platform. Figure 4 As shown, the walking platform casting trolley 3 is equipped with a walking platform casting trolley frame 301, which provides force support for the movement of the entire mechanism; the adjustment tool 302 adjusts the shape, height, surface flatness and other elements of the walking platform through power actuators such as cylinders to ensure that the appearance and size of the walking platform meet the design requirements; the casting unit 303 is used to inject the mortar in the transport vehicle 10 into the set model of the walking platform casting trolley 3 through a grouting device, and its grouting pipe is equipped with a pressure sensor to detect whether the grouting is sufficient; the walking platform casting trolley walking unit 304 provides support and stability for the trolley to travel, and is equipped with a driving device, which can actively move forward and backward along the tunnel.

[0045] like Figure 5 As shown, the arc-shaped secondary lining casting trolley 4 is used for shaping, casting, and testing of the arc-shaped secondary lining. The arc-shaped second lining casting trolley 4 is equipped with a frame 401 for the arc-shaped second lining forming trolley, which provides force support for the movement of the entire mechanism; a second lining forming template 402, the purpose of which is to ensure its external dimensions; an external dimension adjustment tool 403, which adjusts the external dimensions, thickness, surface flatness, curvature and other elements of the arc-shaped second lining through power actuators such as oil cylinders to ensure that the external dimensions of the arc-shaped second lining meet the design requirements; a second lining casting unit 404, the purpose of which is to inject the mortar in the transport vehicle 10 into the model set by the second lining casting trolley 4 through a grouting device, and its grouting pipe is equipped with a pressure sensor to detect whether the grouting is sufficient; a grouting detection unit 405, which is used to detect the grouting effect, and is generally equipped with a radar and other detection devices to detect whether there is a cavity after the grouting, and to perform secondary grouting in places where the grouting is insufficient; a second lining casting trolley walking unit 406, which provides support and stability for the trolley to walk, and is equipped with a driving device, which can actively move forward and backward along the tunnel; like Figure 6As shown, the pipeline layout in the tunnel under the action of the pipeline tooling 8, specifically including the pipeline layout tooling 801, which is used to support and suspend various pipelines; the mud pipeline 7 is divided into a slurry inlet pipeline 701 and a slurry discharge pipeline 702. The mud pipeline 7 in the tunnel is placed on the box culvert or cast-in-place ground through the pipeline layout tooling 801 to make room for the secondary lining construction; the high-voltage cable 803 is suspended on the side of the pipeline layout tooling 801 to supply power for the slurry shield machine; and the water pipe 804. The pipeline originally placed on the inner wall of the segment is placed on the box culvert or cast-in-place ground through the tooling, and the secondary lining trolley is avoided during the secondary lining construction.

[0046] It should be particularly noted that, in the above embodiment, the pipeline extension device 2 is not limited to this structural form, and any method of placing the mud pipeline 7 in the box culvert or cast-in-place ground is a derivative scheme of this scheme; the second lining trolley is not limited to embedding reinforcement in the tunnel, pouring in the tunnel, and smoothing in the tunnel, and the in-tunnel assembly of the prefabricated second lining is also a derivative scheme of this scheme; the pipeline layout described in this scheme is not limited to placing the pipeline in the box culvert or cast-in-place ground through tooling, and any method of placing the pipeline in the box culvert or cast-in-place ground is a derivative scheme of this scheme.

[0047] A synchronous secondary lining construction method adopts the synchronous secondary lining construction system described in any of the above technical solutions. During the excavation construction of a slurry shield machine, the mud pipe is synchronously extended through the pipeline extension device 2, the mud pipeline 7 is synchronously positioned on the box culvert 6 through the pipeline tooling 8, and the walking support structure 12 of the secondary lining casting trolley 4 is synchronously cast through the walking platform casting trolley 3. The secondary lining casting trolley 4 casts the secondary lining structure 13 while walking on the walking support structure 12.

[0048] The details not described in detail in the present invention are all conventional technical means known to those skilled in the art.

[0049] The above content shows and describes the basic principles, main features and beneficial effects of the present invention. The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A synchronous secondary lining construction system, comprising a pipeline extension device (2) connected to a trailer (1), characterized in that: A walking platform casting trolley (3) and a secondary lining trolley are sequentially arranged at the rear of the trailer (1); the walking platform casting trolley (3) comprises a walking platform casting trolley walking unit (304) for walking on both sides of the box culvert (6), and a walking platform casting unit (303) for casting a walking support structure (12) of the secondary lining trolley outside the box culvert (6); and a pipeline tooling (8) for positioning the mud pipeline (7) on the box culvert (6) or on cast-in-place ground is arranged at the rear of the pipeline extension device (2).

2. The synchronous secondary lining construction system according to claim 1 is characterized in that: A relay pump (9) for positioning on the box culvert (6) is arranged behind the pipeline extension device (2), and the relay pump (9) is used to pump the mud in the mud pipeline (7).

3. The synchronous secondary lining construction system according to claim 1 or 2, characterized in that: The secondary lining trolley is a secondary lining casting trolley (4) or a secondary lining assembly trolley. When the secondary lining trolley is a secondary lining casting trolley (4), it also includes a transport vehicle (10) for transporting casting materials to the walking platform casting trolley (3) and the secondary lining casting trolley (4).

4. The synchronous secondary lining construction system according to claim 3 is characterized in that: The pipeline extension device (2) comprises a structural assembly (201) connected to a pipeline assembly (202), and a mud pipe crane (203) connected to the trailer (1) via a crane frame (206) that can move forward, backward, left and right. The structural assembly (201) actively moves forward and backward along a track on the trailer (1) via a motion unit.

5. The synchronous secondary lining construction system according to claim 4 is characterized in that: The pipeline extension device (2) comprises an elastic support wheel (204) for supporting the mud pipe at the interface of the pipeline assembly (202) above the box culvert (6), and a hoisting support (205) for hoisting the mud pipe at the interface of the pipeline assembly (202).

6. The synchronous secondary lining construction system according to any one of claims 1-2, 4-5, characterized in that: The walking platform casting trolley (3) comprises a walking platform casting trolley frame (301) supported on the walking platform casting trolley walking unit (304); the walking platform casting trolley frame (301) is connected to the walking platform casting unit (303) and an adjustment tool (302) for supporting the formwork of the walking support structure (12); the walking platform casting unit (303) is used to cast the adjustment tool (302), the box culvert (6) and the casting cavity between the pipe segment (5).

7. The synchronous secondary lining construction system according to claim 6 is characterized in that: The secondary lining casting trolley (4) comprises a secondary lining casting trolley frame (401) connected to a secondary lining casting trolley walking unit (406); the secondary lining casting trolley frame (401) is connected to a secondary lining forming template (402), a shape adjustment tool (403) for adjusting the secondary lining forming template (402), and a secondary lining casting unit (404) for casting in a casting cavity between the secondary lining forming template (402) and the pipe segment (5) and the walking support structure (12).

8. The synchronous secondary lining construction system according to claim 7 is characterized in that: The secondary lining pouring trolley (4) comprises a grouting detection unit (405) for detecting a grouting effect.

9. The synchronous secondary lining construction system according to claim 7 or 8, characterized in that: The walking platform casting unit (303) and the secondary lining casting unit (404) both include a pressure sensor for detecting the pressure in the grouting pipe.

10. A synchronous secondary lining construction method, characterized in that: The synchronous secondary lining construction system according to any one of claims 1 to 9 is used. During the excavation construction of a slurry shield machine, the slurry pipe is synchronously extended by the pipeline extension device (2), the slurry pipeline (7) is synchronously positioned on the box culvert (6) by the pipeline tooling (8), the walking support structure (12) of the secondary lining casting trolley (4) is synchronously cast by the walking platform casting trolley (3), and the secondary lining casting trolley (4) casts the secondary lining structure (13) while walking on the walking support structure (12).

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