Side top arch type steel mould trolley walking on different sections of lining tunnel

Abstract

The utility model relates to a side top arch type steel mould trolley walking on different sections of a lining tunnel, and belongs to the technical field of tunnel construction. The trolley comprises a portal frame body structure, a formwork supporting structure and a formwork assembly. The portal frame main body structure is composed of a plurality of portal frame bodies, each portal frame body comprises a portal frame cross beam and a portal frame stand column with a hydraulic cylinder, height and position adjustment is achieved through segmented control of the hydraulic cylinders, and different section requirements are met. The formwork supporting structure comprises a top formwork rack and a side formwork supporting assembly, the formwork assembly is of an arc-shaped structure formed by splicing an upper formwork, a middle formwork and a lower formwork, and the complex lining construction requirement is met. The side top arch type steel mould trolley walking on the different sections of the lining tunnel is different from a conventional trolley concrete pouring mode, contraction and movement of the longitudinal side top arch template and the annular bottom arch template can be achieved at the same time, and meanwhile the height and the position of the trolley can be adjusted through a hydraulic system on the different sections; and a lining structure with a complex structure can be continuously subjected to concrete pouring.

Description

TECHNICAL FIELD

[0001] The utility model relates to a tunnel construction technical field, especially relate to a side top arch type steel mould trolley walking in different sections of lining tunnel. BACKGROUND

[0002] With the national infrastructure investment strength increases, in addition to the high speed railway, highway tunnel wide range construction, more large buried depth, long distance water conveyance, diversion tunnel wide range application, and gradually increase the construction strength for other purposes tunnel, tunnel lining requirement also than conventional tunnel has improved, for the concrete lining construction of tunnel inner wall, the steel mould trolley of concrete lining is the non-standard product indispensable in the secondary lining of tunnel construction process.

[0003] Traditional commonly used steel mould trolley has bottom mould needle beam type, side top arch type, full circle type etc., and the conventional side top arch type steel mould trolley is used in simple structure lining;But now for different purposes tunnel lining structure is more complex and various, for example, TBM tunneling secondary lining, pours the bottom plate and small side wall in advance before side top arch lining, and according to the different conditions of rock stratum, the lining section is also complex and changeable;Therefore, the conventional side top arch steel mould trolley has obvious limitation, and it is difficult to walk in different size tunnels, causes the delay of construction period, cost input is big etc. UTILITY MODEL CONTENTS

[0004] In order to solve the above problems, the utility model provides a side top arch type steel mould trolley walking in different sections of lining tunnel, which is different from the conventional trolley pouring concrete mode, and can realize the contraction and movement of longitudinal side top arch formwork and ring-shaped bottom arch formwork at the same time, can adjust the height and position of the trolley through the hydraulic system in different sections, and can continuously pour concrete for the lining structure with complex structure.

[0005] The utility model adopts the technical scheme that:

[0006] A side top arch type steel mould trolley walking in different sections of lining tunnel, the side top arch type steel mould trolley walking in different sections of lining tunnel includes portal main body structure, formwork support structure installed on the portal main body structure and formwork assembly installed on the formwork support structure;

[0007] The portal main body structure includes a plurality of groups of portal, each group of portal includes portal crossbeam and portal column installed on both sides of the bottom of the portal crossbeam, and the portal column is provided with a hydraulic cylinder;

[0008] The formwork support structure includes top mould trolley installed on the top of the portal main body structure and side mould support assembly installed on both sides of the portal main body structure;

[0009] The template assembly comprises an upper template installed on the upper die rack, and a middle template and a lower template installed on the side die support assembly, and the upper template, the middle template and the lower template are spliced to form the template assembly with an overall arc structure.

[0010] Further, the portal column of the portal frame comprises a first hydraulic cylinder and a second hydraulic cylinder arranged coaxially in the vertical direction, the telescopic rod of the first hydraulic cylinder is fixedly connected with the portal connecting seat of the portal beam, and the telescopic rod of the second hydraulic cylinder is fixedly connected with the cylinder body of the first hydraulic cylinder.

[0011] Further, the portal frame body structure further comprises a support lead screw arranged between each group of portal columns, one end of the support lead screw is fixedly connected with the portal connecting seat at the bottom of the portal column, and the other end of the support lead screw is connected with a sliding sleeve sleeved on the telescopic rod of the first hydraulic cylinder and the telescopic rod of the second hydraulic cylinder.

[0012] Further, the upper die rack comprises a partition type box girder fixedly connected with the portal beam, a plurality of rack transverse columns arranged coaxially and transversely penetrating through the partition type box girder are arranged in the partition type box girder, and a plurality of rack vertical columns arranged coaxially and vertically penetrating through the partition type box girder are arranged on each rack transverse column.

[0013] Further, the side die support assembly comprises an upper longitudinal beam fixedly installed on the upper part of the two sides of the portal frame body structure, a plurality of side die through beams are installed at equal intervals on the upper longitudinal beam, the side die through beams are located between two adjacent portal columns, the top of the side die through beam is fixedly connected with the upper die rack, and the bottoms of all side die through beams located on one side of the portal frame body structure are connected through a lower longitudinal beam.

[0014] Further, the lower longitudinal beams on the two sides of the portal frame body structure are connected through a plurality of lower longitudinal beam support lead screws arranged coaxially and transversely penetrating through the portal frame body structure.

[0015] Further, the upper template comprises two arc-shaped steel templates, and the two arc-shaped steel templates are fixedly connected with the rack transverse columns and the rack vertical columns of the upper die rack.

[0016] Further, the middle template and the lower template are both arc-shaped steel templates, the middle template is installed on the upper longitudinal beam and the side die through beam of the side die support assembly through a plurality of side die upper support arms and a plurality of side die middle support arms, and the lower template is installed on the side die through beam and the lower longitudinal beam of the side die support assembly through a plurality of side die middle support arms and a plurality of side die lower support arms.

[0017] Further, the side die upper support arm, the side die middle support arm and the side die lower support arm are all provided with a hydraulic cylinder.

[0018] Further, the side-crest arch type steel die trolley walking on different sections of the lining tunnel further comprises a construction platform installed in the portal frame body structure and extending longitudinally, and a ladder is installed on both sides of the front end and the rear end of the construction platform.

[0019] The utility model discloses the beneficial effect is:

[0020] 1. Strong adaptability, meet complex section demand: through the subsection control of hydraulic system, the height and position of portal column, the trolley can flexibly adjust the overall height and attitude, and adapt to different size and shape of tunnel section. This design solves the problem of the traditional trolley walking difficulty in complex section, and ensures the continuity and efficiency of construction.

[0021] 2. Flexible template retraction and movement, improve construction efficiency: the trolley adopts the design of longitudinal side top arch formwork and annular bottom arch formwork, and realizes the rapid retraction and expansion of the formwork by combining with the driving of hydraulic cylinder. This function makes the trolley can quickly step and slide between discontinuous lining sections, significantly shortens the construction preparation time, and improves the construction efficiency.

[0022] 3. Stable structure, strong carrying capacity: the portal main body structure is composed of multiple groups of portal, and each group of portal is connected by cross beam, column and supporting screw rod to form a stable frame structure. The diaphragm type box girder and the coaxial arrangement of horizontal and vertical columns further enhance the rigidity of the top die trolley, and ensure the stability under the condition of large span and high load.

[0023] 4. Accurate template assembly splicing, ensure construction quality: the template assembly is spliced by upper template, middle template and lower template, and the whole is arc-shaped structure, which can closely fit with the inner wall of the tunnel. The side mold support arm is equipped with hydraulic cylinder, which can accurately adjust the position and angle of the formwork, so as to ensure the quality and surface flatness of concrete pouring.

[0024] 5. Convenient operation, reduce labor cost: the introduction of hydraulic system realizes the automatic adjustment of formwork and trolley height, reduces the need for manual intervention. At the same time, the design of construction platform and ladder provides a safe and convenient operation environment for construction personnel, further reduces the investment of human resources.

[0025] 6. Improve construction safety: the double hydraulic cylinder design of portal column and the reinforcement measures of supporting screw rod effectively avoid the shaking and instability of trolley in the running process, improve the safety of construction. In addition, the design of construction platform and ladder also provides reliable operation space for construction personnel.

[0026] 7. Save construction period and reduce cost: because the trolley can quickly adapt to different sections and realize continuous construction, the downtime and equipment adjustment cost caused by section change are greatly reduced. At the same time, the efficient construction process and high quality pouring effect also indirectly reduce the rework rate and material waste.

[0027] In conclusion, the side-top-arch type steel mould trolley provided by the utility model not only overcomes the limitations of the traditional trolley in complex section construction, but also significantly improves the construction efficiency, quality and safety through technical innovation, provides strong technical support for tunnel lining engineering, and has important application value and popularization prospect. BRIEF DESCRIPTION OF DRAWINGS

[0028] In order to more clearly illustrate the technical schemes in the embodiments of the utility model or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced as follows. Obviously, for those skilled in the art, other drawings can also be obtained without creative labor on the premise of the drawings.

[0029] Figure 1 It is a whole structure schematic view of the side-top-arch type steel mould trolley of the utility model;

[0030] Figure 2 It is a schematic view of the portal main body structure of the side-top-arch type steel mould trolley of the utility model;

[0031] Figure 3 It is a schematic view of the formwork support structure of the side-top-arch type steel mould trolley of the utility model;

[0032] In the drawing, 1 is a portal main body structure, 2 is a formwork support structure, 3 is a formwork assembly, 4 is a portal, 5 is a portal crossbeam, 6 is a portal column, 7 is a hydraulic cylinder, 8 is a top mould trolley, 9 is a side mould support assembly, 10 is an upper formwork, 11 is a middle formwork, 12 is a lower formwork, 13 is a tunnel inner wall, 14 is a first hydraulic cylinder, 15 is a second hydraulic cylinder, 16 is a portal connecting seat, 17 is a support lead screw, 18 is a sliding sleeve, 19 is a partition plate type box girder, 20 is a trolley transverse column, 21 is a trolley vertical column, 22 is an upper longitudinal beam, 23 is a side mould through beam, 24 is a lower longitudinal beam, 25 is a lower longitudinal beam support lead screw, 26 is a side mould upper support arm, 27 is a side mould middle support arm, 28 is a construction platform, and 29 is a ladder. DETAILED DESCRIPTION

[0033] The technical schemes in the embodiments of the utility model will be clearly and completely described below in combination with the drawings of the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0034] In view of the limitations of the conventional side-top-arch type steel mould trolley, the trolley has difficulty in walking in tunnels of different sizes, causes delay in construction period and large cost investment, and the embodiment provides a side-top-arch type steel mould trolley walking in different sections of lining tunnels. Figure 1As shown, the walking on the lining tunnel different section edge top arch type steel mold trolley includes portal main structure 1, formwork support structure 2 installed on portal main structure 1, and formwork assembly 3 installed on formwork support structure 2. Among them, portal main structure 1 is the main load-bearing frame of the whole trolley, providing overall support and stability; formwork support structure 2 provides installation basis for formwork assembly 3 and ensures the accurate position and angle of the formwork; formwork assembly 3 directly contacts the inner wall 13 of the tunnel for concrete pouring and forming to ensure the lining quality.

[0035] Specifically, as shown in Figure 1 and Figure 2 , the portal main structure 1 in the embodiment includes eight groups of portal 4, each group of portal 4 includes portal cross beam 5 and portal column 6 installed on both sides of the bottom of portal cross beam 5, and hydraulic cylinder 7 is arranged on the portal column 6. The portal cross beam 5 is welded by H1000×300 H-shaped steel, the wing plate is δ=14mm steel plate, and the web plate is δ=12mm steel plate. The portal cross beam 5 connects the two side portal columns 6 to form a stable horizontal frame, transfer load and enhance lateral rigidity. The portal column 6 in the embodiment includes first hydraulic cylinder 14 and second hydraulic cylinder 15 arranged vertically coaxially, and the first hydraulic cylinder 14 and the second hydraulic cylinder 15 are both 1000mm stroke hydraulic cylinders; the telescopic rod of the first hydraulic cylinder 14 is fixedly connected with the portal cross beam 5 through the portal connecting seat 16, and the telescopic rod of the second hydraulic cylinder 15 is fixedly connected with the cylinder body of the first hydraulic cylinder 14. The portal column 6 realizes height adjustment through the hydraulic cylinder 7, adapts to different section sizes, and at the same time bears the weight of the upper structure; the first hydraulic cylinder 14 and the second hydraulic cylinder 15 arranged coaxially can control the support point in sections, realize flexible adjustment and rapid step sliding of the trolley between different sections.

[0036] Further, as a preferred technical solution of the embodiment, in order to prevent the deformation of the portal main structure 1, as shown in Figure 1 and Figure 2 , the portal main structure 1 in the embodiment further includes support lead screw 17 arranged between each group of portal 4, which is composed of Tr60×8 screw rod and φ89×6 seamless steel pipe threaded connection; one end of the support lead screw 17 is fixedly connected with the portal connecting seat 16 at the bottom of the portal column 6, and the other end is connected with the sliding sleeve 18 sleeved on the cylinder body of the first hydraulic cylinder 14 and the telescopic rod of the second hydraulic cylinder 15. The support lead screw 17 connects the portal column 6 and the sliding sleeve 18, enhances the stability of the portal column 6 without affecting the work of the first hydraulic cylinder 14 and the second hydraulic cylinder 15, and prevents the deformation of the portal main structure 1.

[0037] As shown in Figure 1 and Figure 3As shown, the template support structure 2 in the embodiment includes a top die rack 8 mounted on the top of the portal main structure 1, and a side die support assembly 9 mounted on both sides of the portal main structure 1. The top die rack 8 includes a partition box girder 19 fixedly connected with the portal beam 5, eight rack transverse columns 20 coaxially arranged and transversely penetrating the partition box girder 19 are arranged in the partition box girder 19, and four rack vertical columns 21 coaxially arranged and vertically penetrating the partition box girder 19 are arranged on each rack transverse column 20; wherein the rack transverse column 20 and the rack vertical column 21 are both welded by 20b# I-beams. The support upper die plate 10 is rigidly enhanced by the partition box girder 19, the rack transverse column 20 and the vertical column, so as to ensure the stability and load-bearing capacity of the top die plate.

[0038] As shown in Figure 1 and Figure 3 , the side die support assembly 9 of the template support structure 2 includes an upper longitudinal beam 22 fixedly mounted on the upper part of both sides of the portal main structure 1, the upper longitudinal beam 22 is made of H294x200 H-shaped steel, and eight side die beams 23 are installed at equal intervals on the upper longitudinal beam 22; the side die beam 23 is double-spliced by two 20# channel steels, the side die beam 23 is located between two adjacent portal columns 6, and the top of the side die beam 23 is fixedly connected with the top die rack 8; the bottoms of all side die beams 23 located on one side of the portal main structure 1 are connected by a lower longitudinal beam 24; the lower longitudinal beam 24 is a welded box beam with a height of 600mm and a width of 500mm, a steel plate with a δ=14mm is used as a wing plate, and a steel plate with a δ=12mm is used as a web plate for welding; the side die support assembly 9 provides stability and load-bearing capacity for the installation of the middle and lower die plates.

[0039] Further, as a preferred technical solution of the embodiment, in order to ensure the stability of the side die support assembly 9, as shown in Figure 1 and Figure 3 , the lower longitudinal beams 24 on both sides of the portal main structure 1 in the embodiment are connected by eight lower longitudinal beam support lead screws 25 coaxially arranged and transversely penetrating the portal main structure 1. The lower longitudinal beam support lead screw 25 is composed of a Tr70x8 screw and a φ102x6 seamless steel pipe threaded connection, and the lower longitudinal beam support lead screw 25 can ensure the stability of the side die support assembly 9 after connecting the two lower longitudinal beams 24.

[0040] As shown in Figure 1 and Figure 3As shown, the template assembly 3 in the embodiment includes an upper template 10 mounted on the top die rack 8, and a middle template 11 and a lower template 12 mounted on the side die support assembly 9. The upper template 10 includes two arc-shaped steel templates fixedly connected with the rack transverse column 20 and the rack vertical column 21 of the top die rack 8. The middle template 11 and the lower template 12 are both an arc-shaped steel template. The middle template 11 is mounted on the upper longitudinal beam 22 and the side die beam 23 of the side die support assembly 9 through eight sets of side die upper support arms 26 and eight sets of side die middle support arms 27. The lower template 12 is mounted on the side die beam 23 and the lower longitudinal beam 24 of the side die support assembly 9 through eight sets of side die middle support arms 27 and eight sets of side die lower support arms. Figure 3 As shown, part of the side die middle support arms 27 and the side die lower support arms are not shown. The side die upper support arms 26, the side die middle support arms 27 and the side die lower support arms are all provided with hydraulic cylinders to meet the control of the annular contraction and extension of the template. The upper template 10, the middle template 11 and the lower template 12 all adopt δ=10mm steel plates for panels. After the upper template 10, the middle template 11 and the lower template 12 are spliced, the template assembly 3 is formed as an arc-shaped structure as a whole, which ensures the close fit with the inner wall 13 of the tunnel. The plug template of the template assembly 3 adopts a wooden template which is not shown in the figure and is fixed by using a tie bar.

[0041] The side top arch type steel die trolley which walks in the lining tunnel of different sections can quickly step and slide to the side top arch lining work in the discontinuous lining section through the segmented control of the hydraulic cylinders 7 of the gantry columns 6 of the eight sets of gantry body structures 1. The working principle is as follows:

[0042] As shown, Figure 1 As shown, the front four sets of gantry body structures 1 of the eight sets of gantry body structures 1 support the small section tunnel, and the rear four sets of gantry body structures 1 support the large section tunnel. The cylinder bodies of the second hydraulic cylinders 15 of the gantry columns 6 of the eight sets of gantry body structures 1 support the ground, so as to meet the quick side top arch lining work in the discontinuous lining section. After the work is completed, if it is needed to move into the small section tunnel, the first hydraulic cylinders 14 and the second hydraulic cylinders 15 of the gantry columns 6 of the rear four sets of gantry body structures 1 are retracted, so that the second hydraulic cylinders 15 are separated from the ground of the bottom of the large section tunnel. At this time, the side top arch type steel die trolley can move into the small section tunnel. Conversely, if it is needed to move into the large section tunnel, the first hydraulic cylinders 14 and the second hydraulic cylinders 15 of the gantry columns 6 of the front four sets of gantry body structures 1 are retracted, so that the side top arch type steel die trolley moves into the large section tunnel. It should be noted that the side top arch type steel die trolley can be provided with step cylinders at the gantry columns 6 to meet the step movement of the side top arch type steel die trolley. The step movement along the tunnel can also be realized by other technical means, such as a rail car. The movement of the steel die trolley is a conventional technology in the field, which will not be described in detail here.

[0043] In addition, as the preferred technical scheme of the embodiment, considering the convenience of construction, the side-arch type steel formwork trolley walking on different sections of the lining tunnel further comprises a construction platform 28 installed in the portal main body structure 1 and longitudinally extended, and a ladder 29 is installed on both sides of the front and rear ends of the construction platform 28. Figure 1 The construction platform 28 and the ladder 29 provide safe and convenient operation space for the construction personnel, and facilitate equipment maintenance and construction operation.

[0044] The basic principle, main features and advantages of the utility model are shown and described above. It should be understood by those skilled in the art that the utility model is not limited by the above-mentioned embodiments, and the above-mentioned embodiments and descriptions in the specification are only to illustrate the principle of the utility model, and various changes and improvements can be made to the utility model without departing from the spirit and scope of the utility model, and these changes and improvements all fall within the scope of the utility model claimed. The scope of protection of the utility model is defined by the appended claims and their equivalents.

Claims

1. A side crown steel form jumbo for walking in different sections of a lined tunnel, characterized in that: The walking edge top arch type steel formwork trolley for lining tunnel different sections comprises a portal main structure, a formwork support structure installed on the portal main structure, and a formwork assembly installed on the formwork support structure; The portal main structure comprises a plurality of portal groups, each portal group comprising a portal beam and portal columns installed on both sides of the bottom of the portal beam, and the portal columns are provided with hydraulic cylinders; The formwork support structure comprises a top formwork frame installed on the top of the portal main structure and side formwork support assemblies installed on both sides of the portal main structure; The formwork assembly comprises an upper formwork installed on the top formwork frame and a middle formwork and a lower formwork installed on the side formwork support assemblies, and the upper formwork, the middle formwork and the lower formwork are spliced to form a formwork assembly with an overall arc structure.

2. The edge crown type steel form jumbo for walking on different sections of a lined tunnel according to claim 1, characterized in that: The portal columns of the portal comprise a first hydraulic cylinder and a second hydraulic cylinder arranged coaxially in the vertical direction, the telescopic rod of the first hydraulic cylinder is fixedly connected with the portal beam through a portal connecting seat, and the telescopic rod of the second hydraulic cylinder is fixedly connected with the cylinder body of the first hydraulic cylinder.

3. The edge crown steel form jumbo for walking in different sections of a lined tunnel according to claim 2, characterized in that: The portal main structure further comprises a support lead screw arranged between each portal group, one end of the support lead screw is fixedly connected with the portal connecting seat at the bottom of the portal column, and the other end is connected with a sliding sleeve sleeved on the cylinder body of the first hydraulic cylinder and the telescopic rod of the second hydraulic cylinder.

4. The edge crown steel form jumbo for walking in different section of the lining tunnel according to claim 1, characterized in that: The top formwork frame comprises a partition type box girder fixedly connected with the portal beam, and a plurality of frame transverse columns arranged coaxially and transversely penetrating through the partition type box girder are arranged in the partition type box girder, and a plurality of frame vertical columns arranged coaxially and vertically penetrating through the partition type box girder are arranged on each frame transverse column.

5. The edge crown steel form jumbo for walking in different section of the lining tunnel according to claim 1, characterized in that: The side formwork support assembly comprises an upper longitudinal beam fixedly installed on the upper part of both sides of the portal main structure, a plurality of side formwork beams are installed at equal intervals on the upper longitudinal beam, the side formwork beams are located between two adjacent portal columns, the top of the side formwork beam is fixedly connected with the top formwork frame, and the bottoms of all side formwork beams located on one side of the portal main structure are connected through a lower longitudinal beam.

6. The edge crown steel form jumbo for walking in different section of the lining tunnel according to claim 5, characterized in that: The lower longitudinal beams on both sides of the portal main structure are connected through a plurality of lower longitudinal beam support lead screws arranged coaxially and transversely penetrating through the portal main structure.

7. The edge crown steel form jumbo for walking in different section of the lining tunnel according to claim 4, characterized in that: The upper formwork comprises two arc-shaped steel formworks, and the two arc-shaped steel formworks are fixedly connected with the frame transverse columns and the frame vertical columns of the top formwork frame.

8. The edge crown steel form jumbo for walking in different section of the lining tunnel according to claim 5, characterized in that: The middle formwork and the lower formwork are both arc-shaped steel formworks, the middle formwork is installed on the upper longitudinal beam and the side formwork beam of the side formwork support assembly through a plurality of side formwork upper support arms and a plurality of side formwork middle support arms, and the lower formwork is installed on the side formwork beam and the lower longitudinal beam of the side formwork support assembly through a plurality of side formwork middle support arms and a plurality of side formwork lower support arms.

9. The edge crown steel form jumbo for walking in different sections of a lined tunnel according to claim 8, characterized in that: The side formwork upper support arms, the side formwork middle support arms and the side formwork lower support arms are all provided with hydraulic cylinders.

10. The edge crown steel form jumbo for walking in different sections of a lined tunnel according to claim 1, characterized in that: The walking edge top arch type steel formwork trolley for lining tunnel different sections further comprises a construction platform installed in the portal main structure and extending longitudinally, and a ladder is installed on both sides of the front end and the rear end of the construction platform.

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