Temporary support equipment for subway civil construction

Abstract

The utility model relates to the field of subway civil engineering technology, especially a kind of temporary support equipment for subway civil engineering construction. Including two groups of main support plate and several vice support plates, two groups of main support plate are fixedly connected through upper and lower two fixed beams, several vice support plates are arranged between two groups of main support plate, and are slidably connected with fixed beam, folding assembly is arranged between adjacent support plate, two groups of fixed plates are fixedly arranged in main support plate side, fixed plate bottom is fixedly provided with support base, and support assembly is also provided in the side of main support plate close to support base. The utility model is closely attached to the side wall of tunnel by main support plate and several vice support plates, the inner wall of tunnel on the rear side of adjacent two vice support plates is exposed by vice support plate sliding, so that wall behind vice support plate is anchored rod construction, so that local tunnel inner wall is constructed.

Description

Technical Field

[0001] This utility model relates to the field of subway civil engineering technology, and in particular to a temporary support device for subway civil construction. Background Technology

[0002] Subway tunnels are a major part of subway civil construction. However, if a subway tunnel is located in fractured strata, support measures must be taken after tunnel excavation to prevent subsidence of the surrounding strata. Traditional tunnel support structures are mostly a combination of steel arches and anchor bolts, with the support structure directly erected inside the tunnel. Since there is an erection period between the placement of anchor bolts and the assembly of the steel arches, temporary support for the tunnel needs to be provided during this period. In tunnels located in fractured hard rock conditions, the stress in the tunnel strata can cause slight changes in the tunnel sidewall structure or even rock fragments to fall off. This not only makes it difficult to place the initial anchor bolts and greatly affects the erection of the support structure, but also increases the safety hazards of the tunnel. Therefore, a temporary support device for subway civil construction is proposed to address the above problems. Utility Model Content

[0003] This utility model provides a temporary support device for subway civil construction, which aims to solve the problems of difficulty in inserting initial support anchors and difficulty in erecting support structures.

[0004] This utility model provides a temporary support device for subway civil construction, comprising:

[0005] The two sets of main support plates are fixedly connected by two upper and lower fixed beams;

[0006] Several secondary support plates are set between two sets of main support plates and are slidably connected to the fixed beam. Folding components are set between adjacent support plates.

[0007] Two sets of fixing plates are fixedly installed on one side of the main support plate, and a support base is fixedly installed at the bottom of the fixing plate. A support component is also installed on the side of the main support plate near the support base.

[0008] Optionally, the side of the secondary support plate is provided with an installation groove, and the folding assembly includes: a fixed rod, which is fixedly installed in the installation groove. The fixed rod is provided with a sliding groove. Several sets of scissor groups are provided between adjacent fixed rods. The scissor group consists of two arms that are hinged in the middle. Both ends of the arms are provided with hinge seats. The hinge seat at one end is hinged to the fixed rod, and the hinge seat at the other end is slidably connected to the fixed rod.

[0009] Optionally, the support assembly includes: an L-shaped support frame, which is fixedly disposed between the support base and the fixing plate;

[0010] The support rod is hinged at one end to the main support plate and located between two sets of fixed plates, and the other end of the support rod is hinged to a support block.

[0011] Optionally, the support base is provided with a base connecting assembly at one end not adjacent to the main support plate. The base connecting assembly includes a connecting rod and a connecting block. The connecting block is fixedly connected to the connecting rod at both ends. The support base is a hollow square tube. The connecting rod is inserted into the support base. The support base has a plurality of first connecting holes. The connecting rod has a second connecting hole corresponding to the first connecting holes. The first connecting holes and the second connecting holes are fixedly connected by bolts.

[0012] Optionally, an auxiliary support rod is hinged to the lower part of the support rod, and the end of the auxiliary support rod away from the main support plate is hinged to the support rod.

[0013] Optionally, the sub-support plate has a first slot at both the top and bottom, and a plurality of pulleys are fixedly installed in the slot. The fixed beam has a second slot on the side near the sub-support plate, and the pulleys are slidably installed in the second slot. The fixed beam has a fixed groove, and the first slot is fixedly connected to the fixed groove by bolts.

[0014] Optionally, the fixed beam has fixing holes at both ends, and the main support plate has a third slot at the top. The fixed beam is bolted through the fixing holes and fastened in the third slot.

[0015] Optionally, the secondary support plate is provided in five sets.

[0016] Optionally, the support block has anti-slip protrusions at its bottom.

[0017] The beneficial effects of this utility model are as follows: Because the main support plate and several secondary support plates are tightly attached to the tunnel sidewall, the tunnel inner wall behind two adjacent secondary support plates is exposed through the sliding of the secondary support plates. This allows for anchor bolt installation on the wall behind the secondary support plates, thus enabling construction of a portion of the tunnel inner wall. This solves the problems of difficulty in inserting initial anchor bolts and erecting the support structure. The folding assembly ensures stable movement of the secondary support plates, avoids misalignment of individual secondary support plates, and does not occupy additional construction space. The scissor assembly ensures that the tunnel inner wall can be exposed, and the outriggers ensure flexible and smooth operation when the spacing of the secondary support plates changes. The support assembly enhances the structural stability of the main support plate. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a structural schematic diagram of a temporary support device for subway civil construction according to the present invention;

[0020] Figure 2 This is a schematic diagram of the structure of a temporary support device for subway civil construction under another state according to this utility model.

[0021] Figure 3 This is a schematic diagram of the disassembled structure of a temporary support device for subway civil construction according to the present invention.

[0022] Figure 4 This is a partial structural schematic diagram of a temporary support device for subway civil construction according to the present invention.

[0023] Figure 5 This is a structural schematic diagram of the support components and the main support plate in this utility model;

[0024] Figure 6 This is a schematic diagram of the structure of the secondary support plate and the folding assembly in this utility model;

[0025] Figure 7 This is a structural diagram of the folding component;

[0026] Figure 8 for Figure 6 A diagram from another angle. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model; the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In addition, unless otherwise explicitly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. 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 an indirect connection through an intermediate medium; it can be a connection within two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0029] This embodiment provides a temporary support device for subway civil construction, such as... Figures 1-2 As shown, the system includes two sets of main support plates 4 and several secondary support plates 2. The two sets of main support plates 4 are fixedly connected by two upper and lower fixed beams 1. The two sets of main support plates 4 are symmetrically arranged and rigidly connected by upper and lower parallel fixed beams 1 to form the main load-bearing frame. Several secondary support plates 2 are arranged between the two sets of main support plates 4 and are slidably connected to the fixed beams 1. The sides of the secondary support plates 2 are provided with mounting grooves 11, and folding components 3 are provided between adjacent secondary support plates 2. Figures 6-7 As shown, the folding assembly 3 includes a fixed rod 32 fixedly installed in the mounting groove 11. A sliding groove 33 is provided on the fixed rod 32. Several sets of scissor sets are arranged between adjacent fixed rods 32. Each scissor set consists of two arms 31 hinged in the middle. Both ends of each arm 31 are provided with hinge seats 34. One end of the hinge seat 34 is hinged to the fixed rod 32, and the other end is slidably connected to the sliding groove 33. Two sets of fixed plates 41 are fixedly installed on one side of the main support plate 4. A support base 6 is fixedly installed at the bottom of the fixed plate 41. A support assembly 5 is also provided on the side of the main support plate 4 near the support base 6, enhancing the structural stability of the main support plate 4. Because the main support plate 4 and several secondary support plates 2 are close to the tunnel sidewall, the tunnel inner wall behind two adjacent secondary support plates 2 is exposed by sliding the secondary support plates 2. Anchor bolts are then installed on the wall behind the secondary support plates 2, thereby enabling construction of a portion of the tunnel inner wall. The folding assembly 3 ensures the stability of the movement of the secondary support plate 2, avoids misalignment of a single secondary support plate 2, and does not occupy additional construction space. The scissor assembly ensures that the inner wall of the tunnel can be exposed, and the support arm 31 ensures that the spacing of the secondary support plate 2 changes flexibly without jamming.

[0030] Among them, the secondary support plate 2 is provided in five sets, and the number can be increased or decreased according to the width requirements of the construction section. Its material is the same as that of the main support plate 4 to ensure the overall support strength is matched.

[0031] Furthermore, such as Figure 6 and Figure 8 As shown, the top and bottom of the secondary support plate 2 are provided with first slots 12, and several pulleys 13 are fixedly installed in the first slots 12. The side of the fixed beam 1 near the secondary support plate 2 is provided with a second slot 14, and the pulleys 13 are slidably installed in the second slots 14. The fixed beam 1 is provided with a fixing groove 15. The first slots 12 are fixedly connected to the fixing grooves 15 by bolts to ensure a firm connection. Through the cooperation of the pulleys 13 and the first slots 12, the secondary support plate 2 can move smoothly along the length of the fixed beam 1.

[0032] like Figures 4-5 As shown, the support assembly 5 includes an L-shaped support frame 52 and a support rod 51. The L-shaped support frame 52 is fixedly installed between the support base 6 and the fixed plate 41, forming a triangular stable structure to enhance the rigidity of the connection between the main support plate 4 and the base. One end of the support rod 51 is hinged to the main support plate 4 and located between the two sets of fixed plates 41. The other end of the support rod 51 is hinged to a support block 54, and the bottom of the support block 54 has anti-slip protrusions. An auxiliary support rod 53 is hinged below the support rod 51, and the end of the auxiliary support rod 53 away from the main support plate 4 is hinged to the support rod 51. The L-shaped support frame 52 and the auxiliary support rod 53 can effectively distribute the pressure borne by the support base 6, preventing damage to a single support rod 51 due to concentrated force. At the same time, the bottom of the support block 54 is provided with anti-slip protrusions to increase the friction with the ground and prevent the support block 54 from sliding under force, ensuring support stability. Furthermore, the connection between the auxiliary support rod 53 and the main support plate 4 can be disassembled, and the support rod 51 can be retracted, which facilitates the storage and transportation of the main support plate 4.

[0033] Optionally, such as Figure 3 As shown, the end of the support base 6 not adjacent to the main support plate 4 is provided with a base connecting assembly 7. The base connecting assembly 7 includes a connecting rod 71 and a connecting block 72. The connecting rod 71 is fixedly connected to both ends of the connecting block 72. The support base 6 is a hollow square tube. The connecting rod 71 is inserted into the support base 6. The support base 6 has several first connecting holes 61. The connecting rod 71 has a second connecting hole 73 corresponding to the first connecting holes 61. The first connecting holes 61 and the second connecting holes 73 are fixedly connected by bolts. According to the width of the tunnel, the first connecting holes 61 and the second connecting holes 73 are aligned, and bolts are inserted and tightened to achieve a rigid connection between the support bases 6 of adjacent equipment, which is suitable for tunnels of different widths.

[0034] Optionally, such as Figure 4As shown, the fixed beam 1 has fixed holes 16 at both ends, and the main support plate 4 has a third slot 42 at the top. The fixed beam 1 is bolted through the fixed holes 16 and fastened in the third slot 42 to ensure a stable connection between the fixed beam 1 and the main support plate 4.

[0035] The working principle of this utility model is as follows: Since the main support plate 4 and several secondary support plates 2 are tightly attached to the tunnel sidewall, the tunnel inner wall behind two adjacent secondary support plates 2 is exposed through the sliding of the secondary support plates 2. Anchor bolts are then installed on the wall behind the secondary support plates 2, thus enabling construction of a localized section of the tunnel inner wall. This solves the problems of difficulty in inserting initial anchor bolts and erecting the support structure. When the secondary support plates 2 move along the fixed beam 1, the scissor assembly achieves extension and retraction through the rotation of the support arm 31 and the sliding of the hinge seat 34 within the groove 33, thereby adapting to changes in the distance between the secondary support plates 2 while maintaining the connection stability of adjacent secondary support plates 2. The large-area contact and anti-slip protrusion design of the support block 54 solves the safety hazard of slippage at the support end of existing equipment; the hinged connection method allows the support rod to adapt to different ground slopes, improving the equipment's adaptability in complex terrain.

[0036] Align the first connecting hole 61 with the second connecting hole 73, and tighten them with bolts to achieve a rigid connection between adjacent equipment support bases 6, which is suitable for different tunnels.

[0037] All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. In addition, the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here. The contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0038] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A temporary support device for subway civil construction, characterized in that, include: The two sets of main support plates are fixedly connected by two upper and lower fixed beams; Several secondary support plates are set between two sets of main support plates and are slidably connected to the fixed beam. Folding components are set between adjacent support plates. Two sets of fixing plates are fixedly installed on one side of the main support plate, and a support base is fixedly installed at the bottom of the fixing plate. A support component is also installed on the side of the main support plate near the support base.

2. The temporary support equipment for subway civil construction according to claim 1, characterized in that, The side of the secondary support plate is provided with an installation groove. The folding assembly includes: a fixed rod, which is fixedly installed in the installation groove. The fixed rod is provided with a sliding groove. Several sets of scissor groups are provided between adjacent fixed rods. The scissor group consists of two arms that are hinged in the middle. Both ends of the arms are provided with hinge seats. The hinge seat at one end is hinged to the fixed rod, and the hinge seat at the other end is slidably connected to the fixed rod.

3. A temporary support device for subway civil construction according to claim 2, characterized in that, The support assembly includes: an L-shaped support frame, which is fixedly installed between the support base and the fixing plate; The support rod is hinged at one end to the main support plate and located between two sets of fixed plates, and the other end of the support rod is hinged to a support block.

4. A temporary support device for subway civil construction according to claim 3, characterized in that, The support base is provided with a base connecting assembly at one end that is not adjacent to the main support plate. The base connecting assembly includes a connecting rod and a connecting block. The connecting rod is fixedly connected to both ends of the connecting block. The support base is a hollow square tube. The connecting rod is inserted into the support base. The support base has several first connecting holes. The connecting rod has a second connecting hole corresponding to the first connecting holes. The first connecting holes and the second connecting holes are fixedly connected by bolts.

5. A temporary support device for subway civil construction according to claim 3, characterized in that, An auxiliary support rod is hinged to the lower part of the support rod, and the end of the auxiliary support rod away from the main support plate is hinged to the support rod.

6. A temporary support device for subway civil construction according to claim 1, characterized in that, The sub-support plate has a first slot at the top and bottom, and a number of pulleys are fixedly installed in the slot. The fixed beam has a second slot on the side near the sub-support plate, and the pulleys are slidably installed in the second slot. The fixed beam has a fixed groove, and the first slot is fixedly connected to the fixed groove by bolts.

7. A temporary support device for subway civil construction according to claim 1, characterized in that, The fixed beam has fixing holes at both ends, and the main support plate has a third slot at the top. The fixed beam is bolted through the fixing holes and fastened in the third slot.

8. A temporary support device for subway civil construction according to claim 7, characterized in that, The secondary support plate is provided in five sets.

9. A temporary support device for subway civil construction according to claim 3, characterized in that, The bottom of the support block has anti-slip protrusions.

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