Large-dip-angle inclined hole secondary lining construction traction type trolley and installation method

Abstract

The invention discloses a large-dip-angle inclined hole second lining construction traction type trolley and an installation method, and relates to the field of tunnel construction.The trolley comprises an arched formwork, a supporting frame, a transverse adjusting assembly and a vertical adjusting assembly, the supporting frame comprises an upper supporting frame and a portal, the upper supporting frame is connected with the top of the arched formwork, and the portal is connected with the top of the arched formwork; the portal is located below the upper supporting frame and located in the arched formwork. The transverse adjusting assembly is connected with the upper supporting frame and the door frame and used for adjusting the transverse relative position of the arched formwork in the tunnel. The vertical adjusting assembly is connected with the door frame and used for abutting against the door frame so as to adjust the inclination angle of the arched formwork in the longitudinal direction. The mounting method is used for mounting the trolley. The arch-shaped formwork is adjusted through the transverse adjusting assembly, the elevation of the portal is adjusted through the vertical adjusting assembly, the arch-shaped formwork can be accurately positioned in a large-dip-angle inclined hole and is installed and attached to the inner wall of a tunnel through the supporting frame, the problems that the height of the front end and the rear end of the portal is different, and the end face of the formwork is not parallel to the end face of the portal are solved, and the installation precision of the formwork is improved.

Description

Technical Field

[0001] The invention relates to the field of tunnel construction, and in particular to a traction trolley for secondary lining construction of a large-angle inclined tunnel and an installation method. Background Art

[0002] In the construction of railway and water conservancy tunnels, shield machines are often used for excavation, and secondary lining trolleys are used for lining support.

[0003] At present, the secondary lining construction of suspension bridge tunnel type anchorage is generally as follows: after the secondary lining construction of the invert (bottom plate) is completed, a full-height steel pipe support is set up on the surface of the invert (bottom plate) as the formwork support system for the pouring of the secondary lining concrete. After the pouring of the secondary lining concrete is completed, a cycle of construction is completed.

[0004] When lining a tunnel with a ramp, in order to adjust the lining elevation, there will be a height difference between the front and rear ends of the gantry, and the template end face will not be parallel to the gantry end face, which will form a large horizontal force between the template and the gantry, causing the support screw jack between the template and the gantry to be misaligned, resulting in damage to the jack and the cylinder. At the same time, since the template and the gantry are usually designed as an integrated unit, the accumulated lateral deviation caused by the longitudinal movement of the main frame will affect the installation accuracy of the template. Summary of the invention

[0005] In view of the defects existing in the prior art, the purpose of the present invention is to provide a traction trolley and an installation method for the secondary lining construction of a steeply inclined tunnel, so as to solve the problem of poor template installation accuracy in the steeply inclined tunnel in the prior art.

[0006] In order to achieve the above purpose, the technical solution adopted by the present invention is:

[0007] On the one hand, the present application provides a traction trolley for secondary lining construction of a large-angle inclined tunnel, comprising:

[0008] Arch formwork;

[0009] A support frame, comprising an upper support frame and a door frame, wherein the upper support frame is connected to the top of the arch template, and the door frame is located below the upper support frame and inside the arch template;

[0010] A transverse adjustment component, the upper support frame and the portal frame are connected via the transverse adjustment component, and the transverse adjustment component is used to adjust the relative position of the arch template in the transverse direction of the tunnel;

[0011] A vertical adjustment component is connected to the portal frame and is used to support the portal frame to adjust the longitudinal inclination angle of the arch template in the tunnel.

[0012] In some optional embodiments, the lateral adjustment assembly includes:

[0013] A top holding member, one end of which is connected to the upper support frame, and the other end of which is slidably connected to the door frame;

[0014] The transverse pushing member has a fixed end fixedly connected to the door frame and a telescopic end connected to the supporting member and can be telescopically moved.

[0015] In some optional embodiments, the vertical adjustment assembly includes at least one group of vertical pushing groups, which are respectively arranged at both ends of the door frame along the longitudinal direction.

[0016] In some optional embodiments, the vertical pushing group includes two telescopic cylinders, which are arranged at intervals on the bottom longitudinal beam of the portal frame.

[0017] In some optional embodiments, a positioning assembly is further included, which includes at least one adjustable screw rod for connecting and fixing the above-mentioned door frame to the tunnel.

[0018] In some optional embodiments, the arch template includes a top template and two side templates connected to both ends of the top template, the upper support frame is connected to the top template, and the door frame is connected to the side template.

[0019] In some optional embodiments, the portal frame is connected to the side formwork via a connecting assembly, and the connecting assembly includes a plurality of transverse screw rods, and two ends of the transverse screw rods are respectively connected to the portal frame and the side formwork.

[0020] In some optional embodiments, the gantry includes a traveling mechanism, and the positioning assembly also includes a rail clamp provided on the traveling mechanism for braking.

[0021] In some optional embodiments, a traction device is further included, and the traction device includes:

[0022] A winch, which is fixedly arranged and connected to the gantry via a steel cable;

[0023] At least one steering support is used to adjust the traction angle of the above-mentioned steel cable.

[0024] On the other hand, the present application also provides a method for installing a traction trolley for secondary lining construction of a large-angle inclined tunnel, which is used to install the above-mentioned trolley, comprising the following steps:

[0025] The relative positions of the upper support frame and the portal frame are adjusted by means of the lateral adjustment assembly so that the center line of the arch template coincides with the central axis of the tunnel;

[0026] The door frame is supported by a vertical adjustment component to adjust the longitudinal inclination angle of the arch template so that the arch template fits the inner wall of the tunnel.

[0027] Compared with the prior art, the advantages of the present invention are:

[0028] By adjusting the arch formwork by the lateral adjustment component and adjusting the elevation of the portal frame by the vertical adjustment component, the arch formwork can be accurately positioned in a steeply inclined tunnel and installed on the inner wall of the tunnel through the support frame, solving the problems of height difference between the front and rear ends of the portal frame and non-parallelism between the end faces of the formwork and the portal frame. The support frame and the arch formwork are designed as separate parts, so they can be adjusted at any time according to needs, reducing the accumulated lateral deviation caused by the longitudinal movement of the support frame and improving the installation accuracy of the formwork. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0030] Figure 1 It is a longitudinal structural schematic diagram of a traction trolley for secondary lining construction of a large-angle inclined tunnel according to the present invention;

[0031] Figure 2 for Figure 1 Structural schematic diagram of the middle arch formwork;

[0032] Figure 3 for Figure 1 The side view of the structure of the middle mast;

[0033] Figure 4 for Figure 1 Schematic diagram of the structure where the middle door is mounted in an inclined slanted tunnel;

[0034] Figure 5 for Figure 4 Schematic diagram of the connection between the middle lateral support rod and the adjustable screw rod;

[0035] Figure 6 for Figure 1 Schematic diagram of the traction of the middle mast.

[0036] In the figure: 1. arch formwork; 11. top formwork; 12. side formwork; 121. top holding screw rod; 13. pin shaft; 2. support frame; 21. upper support frame; 211. cross bar; 212. supporting vertical rod; 22. door frame; 221. bottom longitudinal beam; 222. running mechanism; 223. corbel; 224. support column; 225. sleeve; 3. lateral adjustment assembly; 31. top holding member; 32. lateral push member; 4. connecting assembly; 41. lateral screw rod; 5. vertical adjustment assembly; 51. telescopic cylinder; 6. positioning assembly; 61. adjustable screw rod; 62. track clamp; 7. traction device; 71. winch; 72. steel cable; 73. steering support; 8. track; 81. lateral support rod. DETAILED DESCRIPTION

[0037] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0038] The embodiments of the present invention are further described in detail below with reference to the accompanying drawings.

[0039] On the one hand, if Figure 1 As shown, the present application provides a traction trolley for the construction of a second lining of a large-angle inclined tunnel, comprising an arch formwork 1, a support frame 2, a lateral adjustment component 3 and a vertical adjustment component 5. The arch formwork 1 is used to be attached to the inner wall of the tunnel through the support frame 2, and the position of the arch formwork 1 in the tunnel can be adjusted to a calibrated position through the lateral adjustment component 3 and the vertical adjustment component 5.

[0040] Specifically, the support frame 2 includes an upper support frame 21 and a portal frame 22, the upper support frame 21 is connected to the top of the arch formwork 1, and the portal frame 22 is located below the upper support frame 21 and inside the arch formwork 1; the lateral adjustment component 3 is connected to the upper support frame 21 and the portal frame 22, and is used to adjust the relative position of the arch formwork 1 in the tunnel in the lateral direction; the vertical adjustment component 5 is connected to the portal frame 22, and is used to support the portal frame 22 to adjust the longitudinal inclination angle of the arch formwork 1.

[0041] During installation, after the gantry 22 moves to the set position in the tunnel through the track 8, the arch formwork 1 is installed, and the upper support frame 21 is connected to the top of the arch formwork 1. The relative position between the upper support frame 21 and the gantry 22 is adjusted by the lateral adjustment component 3 so that the center line of the arch formwork 1 coincides with the central axis of the tunnel. The gantry 22 is supported by the vertical adjustment component 5 to adjust the longitudinal inclination angle of the arch formwork 1 in the tunnel so that the arch formwork 1 fits against the inner wall of the tunnel.

[0042] It can be understood that by adjusting the elevation of the arch formwork 1 through the lateral adjustment component 3 and the elevation of the gantry 22 through the vertical adjustment component 5, the arch formwork 1 can be accurately positioned in the inclined tunnel with a large inclination angle and installed and fitted on the inner wall of the tunnel through the support frame 2, which solves the problems of the height difference between the front and rear ends of the gantry and the non-parallelism between the end face of the formwork and the end face of the gantry. The support frame 2 and the arch formwork 1 are designed separately, so that they can be adjusted at any time according to needs. The accumulated lateral deviation caused by the longitudinal movement of the gantry 22 improves the installation accuracy of the formwork.

[0043] In some optional embodiments, the lateral adjustment component 3 includes a top holding member 31 and a transverse pushing member 32, one end of the top holding member 31 is connected to the upper support frame 21, and the other end is slidably connected to the door frame 22; the fixed end of the transverse pushing member 32 is fixedly connected to the door frame 22, and the telescopic end thereof is connected to the top holding member 31, and can be telescopically extended and retracted.

[0044] In this example, two top holding members 31 are provided, which are laterally arranged between the upper support frame 21 and the door frame 22. The top holding member 31 is an I-shaped steel, and its top plate is fixedly connected to the upper support frame 21, and its bottom plate is slidably connected to the top of the door frame 22. There is one transverse pushing member 32, which is a telescopic cylinder, and its telescopic end is connected to the web of any I-shaped steel, so that when the telescopic cylinder is working, the arch template 1 is driven to move laterally through the top holding member 31 and the upper support frame 21.

[0045] like Figure 2 As shown, since the arch template 1 includes a top template 11 and two side templates 12 connected to both ends of the top template 11, the upper support frame 21 is connected to the top template 11, and the door frame 22 is connected to the side template 12. Therefore, the upper support frame 21 can be connected to the top template 11 to form a circular arched arch template, and then the arch template is adjusted horizontally by using the horizontal adjustment component 3, and after the arch template is adjusted in place, the side template 12 is installed.

[0046] It should be noted that when installing the arch formwork, it should start from the middle and extend to both ends, so as to reduce the cumulative error. After installing the first arch formwork in the middle, after checking that the chord length and chord height meet the design standards, install other arch formworks until all top formworks 11 are installed. The arch formwork joint is ±1mm, the misalignment is 0.5mm, all bolts must be tightened in staggered directions, and spring washers and flat washers must be fully worn. After the arch formwork is checked and found to be correct, the side formwork 12 can be installed. The side formwork 12 is lifted upright by the number and placed next to the trolley at the predetermined position. The side formwork 12 is lifted to the installation position by the crane. The jack and crowbar are used for fine adjustment so that the central axis of the arch formwork hinged ear plate and the side formwork hinged ear plate coincide, and the pin 13 is inserted and locked with a safety pin. Note that it cannot be installed on one side at a time. Both sides need to be installed symmetrically and then hoisted in sequence according to the number. It is required that after the side formwork 12 is installed, the gap can be adjusted. The flatness of the formwork is required to be no more than 5mm, and the misalignment between the plates is required to be no more than 2mm. If the misalignment between the plates cannot be adjusted, it can be repaired with a grinder until it is qualified. After all the arch formwork 1 is accepted, in order to limit the movement between the plates, nails are installed between each steel plate for reinforcement.

[0047] Furthermore, the upper support frame 21 includes a cross bar 211 connected to both ends of the arc-shaped top template 11 and a plurality of support vertical bars 212 connected between the cross bar 211 and the arc-shaped top template 11, and the plurality of support vertical bars 212 are arranged at equal intervals.

[0048] In some optional embodiments, the vertical adjustment assembly 5 includes at least one group of vertical pushing groups, which are respectively arranged at both ends of the door frame 22 along the longitudinal direction.

[0049] It can be understood that in order to make the arch template 1 fit completely with the inner wall of the tunnel, reduce the height difference between the front and rear ends of the portal frame, and make the top of the portal frame parallel to the cross bar 211, the vertical adjustment component 5 is used to adjust the elevation of the front and rear ends of the portal frame to adapt to the angle of the large-angle inclined tunnel.

[0050] Preferably, the vertical adjustment assembly 5 includes two telescopic cylinders 51 , which are spaced apart and arranged on the bottom longitudinal beam 221 of the gantry 22 .

[0051] That is to say, four telescopic cylinders 51 are arranged in total, which are respectively located on the two bottom longitudinal beams 221 of the door frame 22, and the connecting line of the four telescopic cylinders 51 is rectangular.

[0052] During adjustment, each telescopic oil cylinder 51 is extended or retracted accordingly according to demand, so that the supporting force between each of the above-mentioned supporting members 31 and the arch template is equal.

[0053] In this example, the fixed end of the telescopic oil cylinder 51 is fixed to the bracket 223 of the gantry 22, the telescopic end abuts against the support column 224 on the running wheel, and a sleeve 225 is provided on the bottom longitudinal beam 221, and the sleeve 225 is sleeved on the support column 224. When the telescopic end of the telescopic oil cylinder 51 abuts against the support column 224, the sleeve 225 moves up and down relative to the support column 224.

[0054] In some optional embodiments, such as Figure 3 and Figure 4 As shown, the trolley further includes a positioning assembly 6, which includes at least one adjustable screw rod 61 for connecting and fixing the gantry 22 to the tunnel.

[0055] It can be understood that since the gantry 22 needs to keep a fixed relative position in the inclined tunnel, the arch template 1 can be accurately positioned. Therefore, after the gantry 22 is moved to a set position in the tunnel through the track 8, the gantry 22 can be fixed by the positioning assembly 6. In this example, the adjustable screw 61 can be arranged between the bottom longitudinal beam 221 of the gantry 22 and the bottom surface of the tunnel, and can also be arranged between the running wheel and the track 8.

[0056] Of course, the door frame 22 can also be fixed by the self-braking of the running wheels of the door frame 22, and the door frame 22 can be further stabilized by using the adjustable screw rod 61.

[0057] In some optional embodiments, the door frame 22 is connected to the side formwork 12 via a connecting assembly 4, and the connecting assembly 4 includes a plurality of transverse screw rods 41, and both ends of the transverse screw rods 41 are respectively connected to the door frame 22 and the side formwork 12.

[0058] It can be understood that during the installation process, the side template 12 is first molded or demolded through a single-layer horizontal top. One end of the horizontal top oil cylinder is connected to the door frame 22, and the other end is connected to the side template 12. The horizontal top oil cylinder is extended and retracted, and the side template 12 is flipped outward around the hinge until the bottom of the template is close to the low side wall of the tunnel. After the side template 12 is initially adjusted into place by the horizontal top, after checking and verifying that the spatial position of the side template is correct, the horizontal top is disassembled and the spatial position of the side template 12 is fine-tuned layer by layer from bottom to top using the transverse screw rod 41 until the side template 12 coincides with the theoretical position.

[0059] Preferably, a top holding screw rod 121 is also provided at the bottom end of the above-mentioned side formwork 12, one end of which is connected to the side formwork 12, and the other end is connected to the bottom surface of the tunnel, for holding the side formwork 12 and cooperating with the transverse screw rod 41 to fix the side formwork 12 to make it fit the inner wall of the tunnel.

[0060] In some optional embodiments, the gantry 22 includes a running mechanism 222 , and the positioning assembly 6 also includes a rail clamp 62 for braking provided on the running mechanism 222 .

[0061] It can be understood that the running mechanism 222 is arranged on the two bottom longitudinal beams 221 of the gantry 22, each bottom longitudinal beam 221 is respectively provided with a driving running wheel and a driven running wheel, the track clamp 62 is arranged on the driving running wheel and the driven running wheel, one end of the adjustable screw rod 61 is connected to the driving running wheel, and the other end is connected to the bottom surface of the tunnel. It should be noted that the adjustable screw rod 61 is at an angle to the transverse plane of the tunnel, and its purpose is that in an inclined inclined tunnel, such an oblique setting can provide both horizontal and longitudinal force components.

[0062] Further, such as Figure 5 As shown, a transverse brace rod is installed on the cast bottom plate, and the end of the adjustable screw rod 61 away from the door frame 22 is connected to the above-mentioned transverse brace rod for lateral limitation of the door frame 22.

[0063] In some optional embodiments, the trolley further includes a traction device 7, which includes a winch 71, a steel cable 72 and a steering support 73. The winch 71 is fixedly arranged and connected to the gantry 22 via the steel cable 72; the steering support 73 is provided with at least one for adjusting the traction angle of the steel cable 72.

[0064] like Figure 6As shown, the gantry 22 is moved to a set position in the tunnel by the traction device 7, and the winch 71 stops rotating to stop the gantry 22 at a relative position in the tunnel, and is fixed in cooperation with the positioning assembly 6.

[0065] In some optional embodiments, stress and inclination sensors are installed at key stress-bearing parts of the trolley to monitor the safety and overall stability of the second lining trolley in real time during the casting state, and the information is displayed intuitively through the central control integrated display platform. If a sudden change in stress or posture occurs, the system will automatically issue an alarm and send a text message reminder to the manager's mobile phone.

[0066] Preferably, an anti-fall rope is provided at the front end of the gantry 22. The anti-fall rope adopts φ32, 6×37S+FC steel wire rope. After the steel wire rope is tightened by the guide chain, the other end of the steel wire rope is hung on the anchor seat of the second substrate. The purpose is also to fix the relative position of the gantry 22 in the tunnel. The anti-fall rope can also reduce the traction load of the steel cable 72 and avoid the false triggering of the alarm due to the vibration of the steel cable 72.

[0067] On the other hand, the present application also provides a method for installing a traction trolley for secondary lining construction of a large-angle inclined tunnel, which is used to install the above-mentioned trolley, comprising the following steps:

[0068] S1: The relative positions of the upper support frame 21 and the door frame 22 are adjusted by the lateral adjustment component 3 so that the center line of the arch template 1 coincides with the central axis of the tunnel.

[0069] It can be understood that during installation, after the gantry 22 is moved to the set position in the tunnel through the track 8, the arch formwork 1 is installed, and the upper support frame 21 is connected to the top of the arch formwork 1, and the relative position between the upper support frame 21 and the gantry 22 is adjusted by the lateral adjustment component 3 so that the center line of the arch formwork 1 coincides with the central axis of the tunnel.

[0070] S2: The door frame 22 is supported by the vertical adjustment component 5 to adjust the longitudinal inclination angle of the arch template 1 so that the arch template 1 fits the inner wall of the tunnel.

[0071] It can be understood that the vertical adjustment component 5 is used to support the door frame 22 to adjust the longitudinal inclination angle of the arch template 1 in the tunnel so that the arch template 1 fits the inner wall of the tunnel, solving the height difference between the front and rear ends of the door frame and the problem of the end face of the template being non-parallel to the end face of the door frame.

[0072] After the trolley is in place, how to keep the trolley stable on the slope surface during the pouring of concrete is the key to the quality of concrete. Therefore, in some optional embodiments, step S3 is also included:

[0073] After the arch formwork 1 is adjusted to the set position, the door frame 22 is connected and fixed to the tunnel through the positioning assembly 6, and the relative position of the door frame 22 and the side formwork 12 is fixed through the connecting assembly 4.

[0074] It can be understood that the door frame 22 is longitudinally limited by the rail clamp 62 and the adjustable screw rod 61 connected to the tunnel.

[0075] Furthermore, a transverse support rod 81 is installed on the cast bottom plate, and the end of the adjustable screw rod 61 away from the door frame 22 is connected to the transverse support rod 81 for lateral positioning of the door frame 22 .

[0076] In some optional embodiments, stress and inclination sensors are installed at key stress-bearing parts of the trolley to monitor the safety and overall stability of the second lining trolley in real time during the casting state, and the information is displayed intuitively through the central control integrated display platform. If a sudden change in stress or posture occurs, the system will automatically issue an alarm and send a text message reminder to the manager's mobile phone.

[0077] Preferably, an anti-fall rope is provided at the front end of the gantry 22. The anti-fall rope adopts φ32, 6×37S+FC steel wire rope. After the steel wire rope is tightened by the guide chain, the other end of the steel wire rope is hung on the anchor seat of the second substrate. The purpose is also to fix the relative position of the gantry 22 in the tunnel. The anti-fall rope can also reduce the traction load of the steel cable 72 and avoid the false triggering of the alarm due to the vibration of the steel cable 72.

[0078] The invention discloses a traction trolley and installation method for the secondary lining construction of a large-angle inclined tunnel. The lateral adjustment component 3 is used to adjust the arch template 1, and the vertical adjustment component 5 is used to adjust the elevation of the portal frame 22, so that the arch template 1 can be accurately positioned in the large-angle inclined tunnel and installed and fitted on the inner wall of the tunnel through the support frame 2, thereby solving the problem of the height difference between the front and rear ends of the portal frame and the problem that the template end face is not parallel to the portal frame end face. The support frame 2 is designed separately from the arch template 1, so that it can be adjusted at any time according to needs. The accumulated lateral deviation caused by the longitudinal movement of the portal frame 22 improves the installation accuracy of the template. The positioning component 6. Fix the door frame 22 longitudinally to accurately position the arch formwork 1; by installing transverse braces on the cast bottom plate, the end of the adjustable screw 61 away from the door frame 22 is connected to the above-mentioned transverse brace to limit the door frame 22 laterally; by installing stress and inclination sensors at the key stress-bearing parts of the trolley, the safety and overall stability of the second lining trolley under the casting state are monitored in real time, and intuitively displayed through the central control integrated display platform. If a sudden change in stress or posture occurs, the system will automatically issue an alarm and send a text message reminder to the manager's mobile phone.

[0079] In the description of the present application, it should be noted that the terms "upper", "lower", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present 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 an indirect connection through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0080] It should be noted that, in this application, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0081] The above description is only a specific implementation of the present application, so that those skilled in the art can understand or implement the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest range consistent with the principles and novel features applied for herein.

Claims

1. A traction trolley for the secondary lining construction of a large-angle inclined tunnel, characterized in that: include: Arch formwork (1); A support frame (2), comprising an upper support frame (21) and a door frame (22), wherein the upper support frame (21) is connected to the top of the arched template (1), and the door frame (22) is located below the upper support frame (21) and inside the arched template (1); A transverse adjustment component (3), the upper support frame (21) and the door frame (22) are connected via the transverse adjustment component (3), and the transverse adjustment component (3) is used to adjust the relative position of the arch template (1) in the transverse direction of the tunnel; A vertical adjustment component (5) is connected to the door frame (22) and is used to support the door frame (22) to adjust the longitudinal inclination angle of the arch template (1) in the tunnel.

2. The traction trolley for the secondary lining construction of a large-angle inclined tunnel as claimed in claim 1 is characterized in that: The lateral adjustment component (3) comprises: A supporting member (31), one end of which is connected to the upper support frame (21), and the other end of which is slidably connected to the door frame (22); A transverse push member (32) has a fixed end fixedly connected to the door frame (22) and a telescopic end connected to the supporting member (31) and can be telescopically moved.

3. The traction trolley for the secondary lining construction of a large-angle inclined tunnel as claimed in claim 1 is characterized in that: The vertical adjustment assembly (5) comprises at least one set of vertical pushing groups, which are respectively arranged at two ends of the door frame (22) in the longitudinal direction.

4. The traction trolley for the secondary lining construction of a large-angle inclined tunnel as claimed in claim 3 is characterized in that: The vertical pushing group comprises two telescopic oil cylinders (51) which are arranged at intervals on the bottom longitudinal beam (221) of the door frame (22).

5. The traction trolley for the secondary lining construction of a steeply inclined tunnel as claimed in claim 1, characterized in that: It also comprises a positioning assembly (6), which comprises at least one adjustable screw rod (61) and is used to connect and fix the door frame (22) to the tunnel.

6. The traction trolley for the secondary lining construction of a large-angle inclined tunnel as claimed in claim 1, characterized in that: The arch template (1) comprises a top template (11) and two side templates (12) connected to both ends of the top template (11), the upper support frame (21) is connected to the top template (11), and the door frame (22) is connected to the side template (12).

7. The traction trolley for the secondary lining construction of a large-angle inclined tunnel as claimed in claim 6 is characterized in that: The door frame (22) is connected to the side formwork (12) via a connecting assembly (4), and the connecting assembly (4) comprises a plurality of transverse screw rods (41), and the two ends of the transverse screw rods (41) are respectively connected to the door frame (22) and the side formwork (12).

8. The traction trolley for the secondary lining construction of a steeply inclined tunnel as claimed in claim 5, characterized in that: The door frame (22) includes a running mechanism (222), and the positioning assembly (6) also includes a rail clamp (62) arranged on the running mechanism (222) for braking.

9. The traction trolley for the secondary lining construction of a large-angle inclined tunnel as claimed in claim 6, characterized in that: It also includes a traction device (7), the traction device (7) comprising: A winch (71) is fixedly arranged and connected to the gantry (22) via a steel cable (72); At least one steering support (73) is used to adjust the traction angle of the steel cable (72).

10. A method for installing a traction trolley for secondary lining construction of a large-angle inclined tunnel, characterized in that: For installing the trolley as claimed in claims 1-9, comprising the following steps: The relative positions of the upper support frame (21) and the door frame (22) are adjusted by means of a lateral adjustment component (3) so that the center line of the arch template (1) coincides with the center axis of the tunnel; The door frame (22) is supported by a vertical adjustment component (5) to adjust the longitudinal inclination angle of the arch template (1) so that the arch template (1) fits the inner wall of the tunnel.

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