Extension section structure of continuous belt conveyor for lining jumbo and construction method thereof

Abstract

The disclosure provides a continuous belt conveyor extension section structure and construction method for a lining trolley, wherein the extension section structure comprises: a longitudinal beam arranged along the length direction of the tunnel; a plurality of roller groups arranged on the longitudinal beam at intervals and used for arranging the belt; at least one first support device arranged at the front end of the lining trolley and detachably arranged on the inner wall of the tunnel; at least one second support device arranged on the lining trolley, and the longitudinal beam is slidingly arranged on the second support device; and at least one third support device arranged at the rear end of the lining trolley and detachably arranged on the inner wall of the tunnel lining layer. In the continuous belt conveyor extension section structure and construction method for the lining trolley, the lining trolley can perform lining work synchronously while realizing stable operation of the continuous belt conveyor, thereby effectively improving the construction efficiency of the tunnel.

Description

Technical Field

[0001] This disclosure relates to the field of continuous belt conveyor extension installation technology, and in particular to a continuous belt conveyor extension structure and construction method adapted to a lining trolley. Background Technology

[0002] A continuous belt conveyor is a continuous material transport equipment used for excavating and removing slag in tunnels. Since the continuous belt conveyor moves with the tunnel boring machine (TBM), the belt needs to be continuously extended to accommodate the continuous tunneling of the TBM. At the same time, idler rollers need to be arranged on the extension section of the continuous belt conveyor to ensure the normal operation of the continuous belt conveyor by using the support and guidance of the idler rollers.

[0003] Currently, when lining is being carried out on a lining trolley, the roller assembly located at the front of the lining trolley and placed on the inner wall of the tunnel needs to be removed. At the same time, the roller assembly needs to be installed on the inner wall of the tunnel lining layer at the rear of the lining trolley. This process is not only inconvenient to operate, but also requires the lining trolley to be stopped, resulting in low tunnel construction efficiency and a long construction period. Summary of the Invention

[0004] This disclosure aims to at least partially address one of the technical problems in the related art.

[0005] Therefore, the purpose of this disclosure is to provide a structure and construction method for a continuous belt conveyor extension section adapted to a lining trolley.

[0006] To achieve the above objectives, the first aspect of this disclosure provides a continuous belt conveyor extension structure adapted to a lining trolley, comprising: a longitudinal beam arranged along the length of the tunnel; a plurality of idler roller groups spaced apart on the longitudinal beam and used for arranging the belt; at least one first support device located at the front end of the lining trolley and detachably mounted on the inner wall of the tunnel, wherein the longitudinal beam is detachably mounted on the first support device; at least one second support device mounted on the lining trolley, wherein the longitudinal beam is slidably mounted on the second support device; and at least one third support device located at the rear end of the lining trolley and detachably mounted on the inner wall of the tunnel lining layer, wherein the longitudinal beam is detachably mounted on the third support device.

[0007] Optionally, the second support device includes: a first support, which is disposed on the lining trolley; at least one first guide roller, which is disposed along the width direction of the tunnel and rotatably disposed on the first support, and the longitudinal beam is movably disposed on the first guide roller.

[0008] Optionally, the second support device further includes: a second support, which is disposed on the lining trolley, and the second support and the first support are spaced apart along the length direction of the tunnel; at least one second guide roller, which is disposed along the height direction of the tunnel and rotatably disposed on the second support, and the second guide roller is located outside the longitudinal beam.

[0009] Optionally, an elastic pad is fitted onto the outer surface of the second guide roller.

[0010] Optionally, the outer surface of the first guide roller is provided with a plurality of annular protrusions spaced apart along the width direction of the tunnel, and annular grooves are formed between adjacent annular protrusions.

[0011] Optionally, the first support device includes: a first crossbeam, which is detachably mounted on the inner wall of the tunnel along the width direction of the tunnel, and the longitudinal beam is detachably mounted on the first crossbeam; and a first diagonal brace, which is detachably mounted obliquely on the inner wall of the tunnel, and the end of the first diagonal brace away from the inner wall of the tunnel is connected to the end of the first crossbeam away from the inner wall of the tunnel.

[0012] Optionally, the first support device further includes: a first corner piece, which is detachably disposed on the inner wall of the tunnel, and the end of the first crossbeam away from the first diagonal brace is disposed on the first corner piece; and a second corner piece, which is detachably disposed on the inner wall of the tunnel, and the end of the first diagonal brace away from the first crossbeam is disposed on the second corner piece.

[0013] Optionally, the third support device includes: a second crossbeam, which is detachably mounted on the inner wall of the lining layer along the width direction of the tunnel, and the longitudinal beam is detachably mounted on the second crossbeam, the length of the second crossbeam being less than the length of the first crossbeam; and a second diagonal brace, which is detachably and obliquely mounted on the inner wall of the lining layer, and the end of the second diagonal brace away from the inner wall of the lining layer is connected to the end of the second crossbeam away from the inner wall of the lining layer, the length of the second diagonal brace being less than the length of the first diagonal brace.

[0014] Optionally, the third support device further includes: a third corner piece, which is detachably disposed on the inner wall of the lining layer, and the end of the second crossbeam away from the second diagonal brace is disposed on the third corner piece; and a fourth corner piece, which is detachably disposed on the inner wall of the lining layer, and the end of the second diagonal brace away from the second crossbeam is disposed on the fourth corner piece.

[0015] The second aspect of this disclosure provides a construction method for a continuous belt conveyor extension section adapted to a lining trolley. The method is based on the continuous belt conveyor extension section structure adapted to a lining trolley as provided in the first aspect of this disclosure, and includes: driving the lining trolley to perform lining operations along the length of the tunnel, always using a first support device at the front end of the lining trolley as a front-end support device, and always using a first third support device at the rear end of the lining trolley as a rear-end support device; removing the front-end support device when the distance between the lining trolley and the front-end support device reaches a first preset distance; and installing a third support device between the lining trolley and the rear-end support device when the distance between the lining trolley and the rear-end support device reaches a second preset distance.

[0016] The technical solution provided in this disclosure may include the following beneficial effects:

[0017] By utilizing the support of the second support device, the longitudinal beam can directly pass through the front end of the lining trolley and extend to the rear end of the lining trolley. This not only ensures that the center distance and installation height of the extended section of the continuous belt conveyor are consistent, but also avoids the interference between the disassembly and assembly of the idler roller group and the lining operation of the lining trolley. Thus, while ensuring the stable operation of the continuous belt conveyor, the lining trolley can also carry out lining operations simultaneously, thereby effectively improving the tunnel construction efficiency and significantly shortening the construction cycle.

[0018] Additional aspects and advantages of this disclosure will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this disclosure. Attached Figure Description

[0019] The above and / or additional aspects and advantages of this disclosure will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, in which:

[0020] Figure 1 This is a schematic diagram of the structure of the continuous belt conveyor extension section adapted to the lining trolley according to an embodiment of the present disclosure;

[0021] Figure 2 This is a schematic diagram of the second support device in the continuous belt conveyor extension structure adapted to the lining trolley proposed in one embodiment of the present disclosure;

[0022] Figure 3 This is a schematic diagram of the first support device in the continuous belt conveyor extension structure adapted to the lining trolley according to an embodiment of the present disclosure;

[0023] Figure 4 This is a schematic diagram of the third support device in the continuous belt conveyor extension structure adapted to the lining trolley proposed in an embodiment of the present disclosure;

[0024] Figure 5 This is a schematic flowchart of a construction method for a continuous belt conveyor extension section adapted to a lining trolley, according to an embodiment of this disclosure.

[0025] As shown in the figure: 1. Longitudinal beam; 2. Idler roller assembly;

[0026] 3. First support device; 31. First crossbeam; 32. First diagonal brace; 33. First corner piece; 34. Second corner piece;

[0027] 4. Second support device; 41. First support; 42. First guide roller; 43. Second support; 44. Second guide roller;

[0028] 5. Third support device; 51. Second crossbeam; 52. Second diagonal brace; 53. Third corner piece; 54. Fourth corner piece;

[0029] 100. Lining trolley;

[0030] 200, Tunnel; 300, Lining layer. Detailed Implementation

[0031] Embodiments of this disclosure are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are used only to explain this disclosure, and should not be construed as limiting this disclosure. Rather, embodiments of this disclosure include all variations, modifications, and equivalents falling within the spirit and scope of the appended claims.

[0032] like Figure 1 As shown, this disclosure proposes a continuous belt conveyor extension structure adapted to a lining trolley 100, comprising: a longitudinal beam 1, multiple idler roller groups 2, at least one first support device 3, at least one second support device 4, and at least one third support device 5. The longitudinal beam 1 is arranged along the length direction of the tunnel 200. The multiple idler roller groups 2 are spaced apart on the longitudinal beam 1 and used to arrange the belt. The first support device 3 is located at the front end of the lining trolley 100 and is detachably mounted on the inner wall of the tunnel 200, and the longitudinal beam 1 is detachably mounted on the first support device 3. The second support device 4 is mounted on the lining trolley 100, and the longitudinal beam 1 is slidably mounted on the second support device 4. The third support device 5 is located at the rear end of the lining trolley 100 and is detachably mounted on the inner wall of the lining layer 300 of the tunnel 200, and the longitudinal beam 1 is detachably mounted on the third support device 5.

[0033] Understandably, since multiple idler groups 2 are spaced apart on the longitudinal beam 1, and the portion of the longitudinal beam 1 at the front end of the lining trolley 100 is detachably mounted on the first support device 3, the portion of the longitudinal beam 1 at the lining trolley 100 is slidably mounted on the second support device 4, and the portion of the longitudinal beam 1 at the rear end of the lining trolley 100 is detachably mounted on the third support device 5, the longitudinal beam 1 can be arranged within the tunnel 200 using the support of the first support device 3, the second support device 4, and the third support device 5, thereby effectively supporting multiple idler groups 2, and thus ensuring the normal operation of the continuous belt conveyor by using the support and guidance of multiple idler groups 2.

[0034] Meanwhile, with the support of the second support device 4, the longitudinal beam 1 can directly pass through the front end of the lining trolley 100 and extend to the rear end of the lining trolley 100. This not only ensures that the center distance and installation height of the extended section of the continuous belt conveyor are consistent, but also avoids the interference between the disassembly and assembly of the idler roller group 2 and the lining operation of the lining trolley 100. Thus, while ensuring the stable operation of the continuous belt conveyor, the lining trolley 100 can also carry out lining operations simultaneously, thereby effectively improving the construction efficiency of the tunnel 200 and significantly shortening the construction cycle.

[0035] It should be noted that the longitudinal beam 1 is used to support the idler roller group 2, so as to support and guide the belt using the idler roller group 2. Furthermore, with the support and guidance of the second support device 4, the longitudinal beam 1 can pass through the lining trolley 100 without affecting the movement of the lining trolley 100, thereby allowing the construction work of the continuous belt conveyor extension section and the lining work of the lining trolley 100 to be carried out simultaneously. The specific type of the longitudinal beam 1 can be set according to actual needs and is not limited thereto. For example, the longitudinal beam 1 is a beam structure arranged along the length direction of the tunnel 200. Two longitudinal beams 1 can be set, with the two longitudinal beams 1 spaced apart along the width direction of the tunnel 200. The idler roller frame of the idler roller group 2 is fixed on the two longitudinal beams 1 using bolts or other fasteners. The two longitudinal beams 1 can be fixed on the first support device 3 and the third support device 5 respectively using bolts or other fasteners.

[0036] The idler roller group 2 is used to support and guide the belt. It is arranged on the longitudinal beam 1. Due to the cooperation of the first support device 3, the second support device 4 and the third support device 5, during the lining operation of the lining trolley 100, it is only necessary to remove the first support device 3 at the front end and install the third support device 5 at the rear end. Compared with the complete removal and installation of the idler roller components in the relevant embodiments, the disassembly and assembly operation of the extension section structure in this embodiment is simpler and the construction efficiency is higher. The specific type of idler roller group 2 can be set according to actual needs and is not limited thereto. For example, the idler roller group 2 may include components such as idler roller frame and idler roller.

[0037] The first support device 3 is installed in the unlined section of tunnel 200 to support the longitudinal beam 1. The specific type of the first support device 3 can be set according to actual needs and is not limited thereto. The number of the first support devices 3 can be one, two, three, four, five, etc., and is not limited thereto.

[0038] The second support device 4 is arranged on the lining trolley 100 to support the longitudinal beam 1. Simultaneously, its sliding connection with the longitudinal beam 1 allows relative movement between the lining trolley 100 and the longitudinal beam 1, ensuring synchronous operation between the lining trolley 100's lining and the installation of the continuous belt conveyor extension section. The specific type of the second support device 4 can be set according to actual needs and is not limited thereto. The number of second support devices 4 can be one, two, three, four, five, etc., and is not limited thereto.

[0039] The third support device 5 is arranged in the lining section of tunnel 200 to support the longitudinal beam 1. The specific type of the third support device 5 can be set according to actual needs and is not limited thereto. The number of the third support devices 5 can be one, two, three, four, five, etc., and is not limited thereto.

[0040] The lining trolley 100 is located between the unlined section and the lined section of the tunnel 200. As the lining trolley 100 performs its lining operation, the unlined section gradually transforms into the lined section. That is, the exposed inner wall of the tunnel 200 gradually forms a lining layer 300 through the lining operation of the lining trolley 100. At the same time, with the removal of the first support device 3 and the installation of the third support device 5, the longitudinal beam 1 can transition from the unlined section to the lined section.

[0041] like Figure 2 As shown, in some embodiments, the second support device 4 includes: a first support 41 and at least one first guide roller 42. The first support 41 is disposed on the lining trolley 100, the first guide roller 42 is disposed along the width direction of the tunnel 200 and rotatably disposed on the first support 41, and the longitudinal beam 1 is movably disposed on the first guide roller 42.

[0042] Understandably, since the first support 41 is set on the lining trolley 100, the first guide roller 42 is set along the width direction of the tunnel 200 and rotated on the first support 41, and the longitudinal beam 1 is movably set on the first guide roller 42, the longitudinal beam 1 can be slidably arranged on the lining trolley 100 by utilizing the support and guidance of the first guide roller 42, thereby avoiding interference between the longitudinal beam 1 and the lining trolley 100, and ensuring that the lining operation of the lining trolley 100 and the installation operation of the continuous belt conveyor extension section can be carried out simultaneously.

[0043] It should be noted that the first support 41 is used to support the first guide roller 42, so as to use the first guide roller 42 to support and guide the longitudinal beam 1. The specific type of the first support 41 can be set according to actual needs and there is no restriction. For example, the first support 41 can be an I-beam. The first support 41 is set on the gantry of the lining trolley 100 along the width direction of the tunnel 200.

[0044] The first guide roller 42 is used to support and guide the longitudinal beam 1. The specific type of the first guide roller 42 can be set according to actual needs and is not limited thereto. For example, the first guide roller 42 is a roller body structure, and the first guide roller 42 is rotatably mounted on two opposite upright plates of the first support 41 by means of bearings. Wherein, when there are two longitudinal beams 1, there can also be two first guide rollers 42, and the two first guide rollers 42 support and guide the two longitudinal beams 1 respectively.

[0045] like Figure 2 As shown, in some embodiments, the second support device 4 further includes: a second support 43 and at least one second guide roller 44. The second support 43 is disposed on the lining trolley 100, and the second support 43 and the first support 41 are distributed at intervals along the length direction of the tunnel 200. The second guide roller 44 is disposed along the height direction of the tunnel 200 and rotatably disposed on the second support 43, and the second guide roller 44 is located on the outside of the longitudinal beam 1.

[0046] It is understandable that, since the second support 43 is set on the lining trolley 100, the second guide roller 44 is set along the height direction of the tunnel 200 and rotated on the second support 43, and the second guide roller 44 is located on the outside of the longitudinal beam 1, so that the longitudinal beam 1 can be laterally limited on the lining trolley 100 by using the guidance of the second guide roller 44, thereby avoiding the longitudinal beam 1 from shifting or even falling off on the lining trolley 100, thus ensuring stable lining operation and extension section installation operation.

[0047] It should be noted that the second support 43 is used to support the second guide roller 44 so as to achieve lateral positioning of the longitudinal beam 1 using the second guide roller 44. The specific type of the second support 43 can be set according to actual needs and there is no restriction. For example, the second support 43 can be a seat structure.

[0048] The second guide roller 44 is used to guide and limit the longitudinal beam 1. The specific type of the second guide roller 44 can be set according to actual needs and is not limited thereto. For example, the second guide roller 44 is a roller body structure, and the first guide roller 42 is rotatably mounted on the second support 43 by means of bearings. There can be two second guide rollers 44, and the two second guide rollers 44 are located on the outer sides of the two longitudinal beams 1 respectively.

[0049] In some embodiments, an elastic pad is fitted onto the outer surface of the second guide roller 44.

[0050] It is understandable that, since the outer surface of the second guide roller 44 is fitted with an elastic pad, the second guide roller 44 can not only laterally limit the longitudinal beam 1, but also adapt to the protruding structure of the longitudinal beam 1 using the elastic pad, thereby reducing the wear between the longitudinal beam 1 and the second guide roller 44, while ensuring smooth relative movement between the longitudinal beam 1 and the lining trolley 100.

[0051] It should be noted that the elastic pad is used for protection between the longitudinal beam 1 and the second guide roller 44. The specific type of elastic pad can be set according to actual needs, and there are no restrictions on it.

[0052] In some embodiments, the outer surface of the first guide roller 42 is provided with a plurality of annular protrusions spaced apart along the width direction of the tunnel 200, and annular grooves are formed between adjacent annular protrusions.

[0053] It is understandable that, since the outer surface of the first guide roller 42 is provided with multiple annular protrusions distributed at intervals along the width direction of the tunnel 200, and annular grooves are formed between adjacent annular protrusions, the outer surface of the first guide roller 42 forms an orderly guide structure with concave and convex features, thereby ensuring the stable movement of the longitudinal beam 1 on the lining trolley 100 by utilizing the concave and convex guide structure.

[0054] It should be noted that the annular protrusions and annular grooves are used to guide the longitudinal beam 1 along the length of the tunnel 200 during the rotation of the first guide roller 42. The specific types of the annular protrusions and annular grooves can be set according to actual needs and there are no restrictions on them.

[0055] like Figure 3 As shown, in some embodiments, the first support device 3 includes a first crossbeam 31 and a first diagonal brace 32. The first crossbeam 31 is detachably mounted on the inner wall of the tunnel 200 along the width direction of the tunnel 200, and the longitudinal beam 1 is detachably mounted on the first crossbeam 31. The first diagonal brace 32 is detachably and obliquely mounted on the inner wall of the tunnel 200, and one end of the first diagonal brace 32 away from the inner wall of the tunnel 200 is connected to one end of the first crossbeam 31 away from the inner wall of the tunnel 200.

[0056] It is understandable that, since the first crossbeam 31 is detachably mounted on the inner wall of the tunnel 200 along the width direction of the tunnel 200, and the longitudinal beam 1 is detachably mounted on the first crossbeam 31, the portion of the longitudinal beam 1 located at the front end of the lining trolley 100 can be stably arranged on the inner wall of the tunnel 200 using the first crossbeam 31. At the same time, it is convenient to use the detachable structure of the first crossbeam 31 to realize the transition installation of the continuous belt conveyor extension section from the unlined section to the lined section of the tunnel 200.

[0057] Because the first diagonal brace 32 is detachably inclinedly installed on the inner wall of the tunnel 200, and the end of the first diagonal brace 32 away from the inner wall of the tunnel 200 is connected to the end of the first crossbeam 31 away from the inner wall of the tunnel 200, the first diagonal brace 32 can strengthen the structure of the first crossbeam 31, thereby enabling the first crossbeam 31 to support the longitudinal beam 1 more stably. At the same time, the detachable structure of the first diagonal brace 32 facilitates the transition installation of the continuous belt conveyor extension section from the unlined section to the lined section of the tunnel 200.

[0058] It should be noted that the first crossbeam 31 is used to support the part of the longitudinal beam 1 located at the front end of the lining trolley 100. The specific type of the first crossbeam 31 can be set according to actual needs and there is no restriction. For example, the first crossbeam 31 can be a beam structure arranged along the width direction of the tunnel 200.

[0059] The first diagonal brace 32 is used to support the first crossbeam 31 to enhance the structural strength of the first crossbeam 31. The specific type of the first diagonal brace 32 can be set according to actual needs and is not limited thereto. For example, the first diagonal brace 32 can be a beam structure that is inclinedly arranged at the bottom of the first crossbeam 31.

[0060] like Figure 3 As shown, in some embodiments, the first support device 3 further includes: a first corner piece 33 and a second corner piece 34. The first corner piece 33 is detachably disposed on the inner wall of the tunnel 200, and the end of the first crossbeam 31 away from the first diagonal brace 32 is disposed on the first corner piece 33. The second corner piece 34 is detachably disposed on the inner wall of the tunnel 200, and the end of the first diagonal brace 32 away from the first crossbeam 31 is disposed on the second corner piece 34.

[0061] It is understandable that, since the first corner piece 33 is detachably mounted on the inner wall of the tunnel 200, and the end of the first crossbeam 31 away from the first diagonal brace 32 is mounted on the first corner piece 33, the first crossbeam 31 can be mounted on the inner wall of the tunnel 200 using the first corner piece 33. At the same time, the detachable structure of the first corner piece 33 facilitates the transition installation of the continuous belt conveyor extension section from the unlined section to the lined section of the tunnel 200.

[0062] Since the second corner piece 34 is detachably mounted on the inner wall of the tunnel 200, and the end of the first diagonal brace 32 away from the first crossbeam 31 is mounted on the second corner piece 34, the first diagonal brace 32 can be mounted on the inner wall of the tunnel 200 using the second corner piece 34. At the same time, the detachable structure of the second corner piece 34 facilitates the transition installation of the continuous belt conveyor extension section from the unlined section to the lined section of the tunnel 200.

[0063] It should be noted that the removal of the first support device 3 only involves the removal between the longitudinal beam 1 and the first transverse beam 31, as well as the removal of the corner piece on the inner wall of the tunnel 200. The operation is simple, which makes the construction efficiency of the continuous belt conveyor extension section higher.

[0064] The first corner piece 33 is used for the installation of the first crossbeam 31 on the inner wall of the tunnel 200. The specific type of the first corner piece 33 can be set according to actual needs and there are no restrictions on it.

[0065] The second corner piece 34 is used for the installation of the first diagonal brace 32 on the inner wall of the tunnel 200. The specific type of the second corner piece 34 can be set according to actual needs and there are no restrictions on it.

[0066] like Figure 4 As shown, in some embodiments, the third support device 5 includes: a second crossbeam 51 and a second diagonal brace 52. The second crossbeam 51 is detachably mounted on the inner wall of the lining layer 300 along the width direction of the tunnel 200, and the longitudinal beam 1 is detachably mounted on the second crossbeam 51. The length of the second crossbeam 51 is less than the length of the first crossbeam 31. The second diagonal brace 52 is detachably and obliquely mounted on the inner wall of the lining layer 300, and one end of the second diagonal brace 52 away from the inner wall of the lining layer 300 is connected to one end of the second crossbeam 51 away from the inner wall of the lining layer 300. The length of the second diagonal brace 52 is less than the length of the first diagonal brace 32.

[0067] It is understandable that, since the second crossbeam 51 is detachably installed on the inner wall of the lining layer 300 along the width direction of the tunnel 200, and the longitudinal beam 1 is detachably installed on the second crossbeam 51, the part of the longitudinal beam 1 located at the rear end of the lining trolley 100 can be stably arranged on the inner wall of the lining layer 300 using the second crossbeam 51. At the same time, it is convenient to use the detachable structure of the second crossbeam 51 to realize the transition installation of the continuous belt conveyor extension section from the unlined section to the lined section of the tunnel 200.

[0068] Because the second diagonal brace 52 is detachably inclinedly set on the inner wall of the lining layer 300, and the end of the second diagonal brace 52 away from the inner wall of the lining layer 300 is connected to the end of the second crossbeam 51 away from the inner wall of the lining layer 300, the second diagonal brace 52 can strengthen the structure of the second crossbeam 51, thereby enabling the second crossbeam 51 to support the longitudinal beam 1 more stably. At the same time, the detachable structure of the second diagonal brace 52 facilitates the transition installation of the continuous belt conveyor extension section from the unlined section to the lined section of the tunnel 200.

[0069] It should be noted that the second crossbeam 51 is used to support the part of the longitudinal beam 1 located at the rear end of the lining trolley 100. The specific type of the second crossbeam 51 can be set according to actual needs and there is no restriction. For example, the second crossbeam 51 can be a beam structure arranged along the width direction of the tunnel 200.

[0070] The second diagonal brace 52 is used to support the second crossbeam 51 to enhance the structural strength of the second crossbeam 51. The specific type of the second diagonal brace 52 can be set according to actual needs and is not limited thereto. For example, the second diagonal brace 52 can be a beam structure that is inclinedly arranged at the bottom of the second crossbeam 51.

[0071] Since the installation dimensions change after the lining layer 300 is installed on the inner wall of the tunnel 200, the length of the second crossbeam 51 is less than the length of the first crossbeam 31, and the length of the second diagonal brace 52 is less than the length of the first diagonal brace 32. This ensures that the center distance and installation height of the continuous belt conveyor remain unchanged after it passes through the lining trolley 100.

[0072] like Figure 4 As shown, in some embodiments, the third support device 5 further includes a third corner piece 53 and a fourth corner piece 54. The third corner piece 53 is detachably disposed on the inner wall of the lining layer 300, and the end of the second crossbeam 51 away from the second diagonal brace 52 is disposed on the third corner piece 53. The fourth corner piece 54 is detachably disposed on the inner wall of the lining layer 300, and the end of the second diagonal brace 52 away from the second crossbeam 51 is disposed on the fourth corner piece 54.

[0073] Understandably, since the third corner piece 53 is detachably mounted on the inner wall of the lining layer 300, and the end of the second crossbeam 51 away from the second diagonal brace 52 is mounted on the third corner piece 53, the second crossbeam 51 can be mounted on the inner wall of the lining layer 300 using the third corner piece 53. At the same time, the detachable structure of the third corner piece 53 facilitates the transition installation of the continuous belt conveyor extension section from the unlined section to the lined section of the tunnel 200.

[0074] Since the fourth corner piece 54 is detachably mounted on the inner wall of the lining layer 300, and the end of the second diagonal brace 52 away from the second crossbeam 51 is mounted on the fourth corner piece 54, the second diagonal brace 52 can be mounted on the inner wall of the lining layer 300 using the fourth corner piece 54. At the same time, the detachable structure of the fourth corner piece 54 facilitates the transition installation of the continuous belt conveyor extension section from the unlined section to the lined section of the tunnel 200.

[0075] It should be noted that the installation of the second support device 4 only involves the installation between the longitudinal beam 1 and the second transverse beam 51 and the installation of the corner piece on the inner wall of the lining layer 300. The operation is simple, which makes the construction efficiency of the continuous belt conveyor extension section higher.

[0076] The third corner piece 53 is used for the installation of the second crossbeam 51 on the inner wall of the lining layer 300. The specific type of the third corner piece 53 can be set according to actual needs and there are no restrictions on it.

[0077] The fourth corner piece 54 is used for the installation of the second diagonal brace 52 on the inner wall of the lining layer 300. The specific type of the fourth corner piece 54 can be set according to actual needs and there are no restrictions on it.

[0078] like Figure 5 As shown in the embodiments of this disclosure, a construction method for a continuous belt conveyor extension section adapted to the lining trolley 100 is also proposed. The construction method is based on the continuous belt conveyor extension section structure adapted to the lining trolley 100 as described in the embodiments of this disclosure, and includes:

[0079] S1: Drive the lining trolley 100 to perform lining operations along the length of the tunnel 200, and always use the first first support device 3 at the front end of the lining trolley 100 as the front support device, and always use the first third support device 5 at the rear end of the lining trolley 100 as the rear support device.

[0080] S2: When the distance between the lining trolley 100 and the front support device reaches the first preset distance, remove the front support device;

[0081] S3: When the distance between the lining trolley 100 and the rear support device reaches the second preset distance, a third support device 5 is installed between the lining trolley 100 and the rear support device.

[0082] Understandably, since multiple idler groups 2 are spaced apart on the longitudinal beam 1, and the portion of the longitudinal beam 1 at the front end of the lining trolley 100 is detachably mounted on the first support device 3, the portion of the longitudinal beam 1 at the lining trolley 100 is slidably mounted on the second support device 4, and the portion of the longitudinal beam 1 at the rear end of the lining trolley 100 is detachably mounted on the third support device 5, the longitudinal beam 1 can be arranged within the tunnel 200 using the support of the first support device 3, the second support device 4, and the third support device 5, thereby effectively supporting multiple idler groups 2, and thus ensuring the normal operation of the continuous belt conveyor by using the support and guidance of multiple idler groups 2.

[0083] Meanwhile, with the support of the second support device 4, the longitudinal beam 1 can directly pass through the front end of the lining trolley 100 and extend to the rear end of the lining trolley 100. This not only ensures that the center distance and installation height of the extended section of the continuous belt conveyor are consistent, but also avoids the interference between the disassembly and assembly of the idler roller group 2 and the lining operation of the lining trolley 100. Thus, while ensuring the stable operation of the continuous belt conveyor, the lining trolley 100 can also carry out lining operations simultaneously, thereby effectively improving the construction efficiency of the tunnel 200 and significantly shortening the construction cycle.

[0084] It should be noted that when the distance between the lining trolley 100 and the front-end support device reaches the first preset distance, the front-end support device is removed, so that the next first support device 3 becomes the new front-end support device. Furthermore, when the distance between the lining trolley 100 and the rear-end support device reaches the second preset distance, a third support device 5 is installed between the lining trolley 100 and the rear-end support device, so that the installed third support device 5 becomes the new rear-end support device. Thus, with the continuous lining operation of the lining trolley 100, the first support device 3 is removed sequentially and the third support device 5 is installed sequentially in coordination with the movement of the lining trolley 100. This achieves the transition installation of the continuous belt conveyor extension section from the unlined section to the lined section of tunnel 200, thereby effectively improving the construction efficiency of tunnel 200 and significantly shortening the construction cycle of tunnel 200.

[0085] The first and second preset distances can be set according to actual needs, and there are no restrictions on them.

[0086] The first support device 3 that has been dismantled can be transferred to the front end of the unlined section of tunnel 200 for reuse, in order to save material costs.

[0087] It should be noted that in the description of this disclosure, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Furthermore, in the description of this disclosure, unless otherwise stated, "a plurality of" means two or more.

[0088] Any process or method description in the flowchart or otherwise herein can be understood as representing a module, segment, or portion of code comprising one or more executable instructions for implementing a particular logical function or process, and the scope of preferred embodiments of this disclosure includes additional implementations in which functions may be performed not in the order shown or discussed, including substantially simultaneously or in reverse order depending on the function involved, as will be understood by those skilled in the art to which embodiments of this disclosure pertain.

[0089] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this disclosure. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0090] Although embodiments of the present disclosure have been shown and described above, it is to be understood that the above embodiments are exemplary and should not be construed as limiting the present disclosure. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present disclosure.

Claims

1. A continuous belt conveyor extension section structure adapted to a lining trolley, characterized in that, include: Longitudinal beams, which are arranged along the length of the tunnel; Multiple idler groups are spaced apart on the longitudinal beam and used to arrange belts; At least one first support device is located at the front end of the lining trolley and is detachably mounted on the inner wall of the tunnel, and the longitudinal beam is detachably mounted on the first support device. At least one second support device is provided on the lining trolley, and the longitudinal beam is slidably provided on the second support device; At least one third support device is provided, which is located at the rear end of the lining trolley and is detachably mounted on the inner wall of the tunnel lining layer, and the longitudinal beam is detachably mounted on the third support device. The second support device includes: a first support and at least one first guide roller. The first support is disposed on the lining trolley, the first guide roller is disposed along the width direction of the tunnel and rotatably disposed on the first support, and the longitudinal beam is movably disposed on the first guide roller. The second support device further includes: a second support and at least one second guide roller. The second support is disposed on the lining trolley, and the second support and the first support are spaced apart along the length direction of the tunnel. The second guide roller is disposed along the height direction of the tunnel and rotatably disposed on the second support, and the second guide roller is located outside the longitudinal beam. The first support device includes: a first crossbeam and a first diagonal brace. The first crossbeam is detachably mounted on the inner wall of the tunnel along the width direction of the tunnel, and the longitudinal beam is detachably mounted on the first crossbeam. The first diagonal brace is detachably mounted obliquely on the inner wall of the tunnel, and the end of the first diagonal brace away from the inner wall of the tunnel is connected to the end of the first crossbeam away from the inner wall of the tunnel. The first support device further includes: a first corner piece and a second corner piece, wherein the first corner piece is detachably disposed on the inner wall of the tunnel, and the end of the first crossbeam away from the first diagonal brace is disposed on the first corner piece; the second corner piece is detachably disposed on the inner wall of the tunnel, and the end of the first diagonal brace away from the first crossbeam is disposed on the second corner piece. The third support device includes: a second crossbeam and a second diagonal brace. The second crossbeam is detachably mounted on the inner wall of the lining layer along the width direction of the tunnel, and the longitudinal beam is detachably mounted on the second crossbeam. The length of the second crossbeam is less than the length of the first crossbeam. The second diagonal brace is detachably mounted obliquely on the inner wall of the lining layer, and one end of the second diagonal brace away from the inner wall of the lining layer is connected to one end of the second crossbeam away from the inner wall of the lining layer. The length of the second diagonal brace is less than the length of the first diagonal brace. The third support device further includes a third corner piece and a fourth corner piece. The third corner piece is detachably disposed on the inner wall of the lining layer, and the end of the second crossbeam away from the second diagonal brace is disposed on the third corner piece. The fourth corner piece is detachably disposed on the inner wall of the lining layer, and the end of the second diagonal brace away from the second crossbeam is disposed on the fourth corner piece.

2. The continuous belt conveyor extension section structure adapted to the lining trolley according to claim 1, characterized in that, An elastic pad is fitted on the outer surface of the second guide roller.

3. The continuous belt conveyor extension section structure adapted to the lining trolley according to claim 1, characterized in that, The outer surface of the first guide roller is provided with a plurality of annular protrusions spaced apart along the width direction of the tunnel, and annular grooves are formed between adjacent annular protrusions.

4. A construction method for an extension section of a continuous belt conveyor adapted to a lining trolley, characterized in that, The construction method is based on the continuous belt conveyor extension section structure adapted to the lining trolley as described in any one of claims 1-3, and includes: The lining trolley is driven to perform lining operations along the length of the tunnel, and the first first support device at the front end of the lining trolley is always used as the front support device, and the first third support device at the rear end of the lining trolley is always used as the rear support device. When the distance between the lining trolley and the front-end support device reaches a first preset distance, the front-end support device is removed. When the distance between the lining trolley and the rear support device reaches a second preset distance, a third support device is installed between the lining trolley and the rear support device.

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