Fabricated roadbed module and tunnel construction platform

Abstract

The utility model discloses an assembly type roadbed module and a tunnel construction platform, comprising: a gabion cage which is provided with frames arranged corresponding to each surface, a net structure is arranged in the frame, the gabion cage comprises a connecting structure used for connecting adjacent edges of each frame and constraining a preset gap range between the adjacent edges of the adjacent frames; the water seepage barrier layer is laid on the inner wall of the gabion cage; and the sand material is filled in the water seepage barrier layer. According to the fabricated roadbed module, an adjusting space is formed between the edges of a gabion cage part frame after filling construction, so that a sandy material in the adjusting space can rapidly settle, expand and compress a joint sealing material space under the action of self weight, the joint sealing material between joints is compressed compactly, the slippage probability of a temporary working platform is effectively reduced, and adverse effects caused by horizontal displacement are avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of tunnel engineering, in particular, to an assembled roadbed module. In addition, the utility model also relates to a tunnel construction platform comprising the assembled roadbed module. Background Art

[0002] In the construction of infrastructure projects, it is common to connect tunnels with bridges and tunnels with roadbeds. When the tunnel entrance is located on a high and steep slope and there is a certain height difference with the original ground position of the bridge and roadbed, the construction platform at the tunnel entrance is often insufficient, and it is necessary to increase the platform space to meet the needs of efficient tunnel construction organization. Traditional methods of widening the working platform include setting up a steel structure platform, filling an earth and stone platform, and other methods. Among them, for the case where the height difference between the tunnel entrance and the bottom of the original ground valley is not large, the platform is often widened by filling an earth and stone platform for economic considerations. The traditional method of filling an earth and stone platform is to use conventional large-scale roadbed filling construction machinery and construction technology for filling, that is, using loaders, excavators, and dump trucks to fill the earth and stone in layers to the construction platform position, and compacting it by rollers to meet the use requirements of the tunnel working platform.

[0003] However, the construction environment conditions and functional requirements of tunnel portal platform filling are very different from those of conventional large-scale roadbed filling construction. Therefore, there are many limitations and disadvantages in using conventional large-scale roadbed filling technology to fill tunnel portal platforms. Since the route of tunnel projects is usually located in deep mountains, and due to the requirements of highway vertical curve design, surrounding rock geological conditions, groundwater conditions, etc., the tunnel entrance is usually located on the hillside near the valley side of the mountain. Even if the height difference between the tunnel entrance and the valley allows the use of an earth and stone platform, the tunnel entrance location often has environmental characteristics such as narrow plane space, large vertical space fluctuations, steep fill-excavation interface, and proximity to valley water systems. Therefore, the following problems exist: large-scale machinery and equipment are difficult to use, construction efficiency is low, and construction quality is difficult to ensure; large-scale machinery and equipment have great safety hazards when operating on steep slopes; the fill-excavation interface is steep and steps cannot be excavated, and the overlap quality is difficult to ensure; after filling and forming, the platform is prone to settlement, cracking, degassing, and landslides during the tunnel construction period, causing major quality and safety hazards; earth and stone filling near valley water systems is prone to environmental and water protection problems. Utility Model Content

[0004] The utility model provides an assembled roadbed module and a tunnel construction platform to solve the technical problem in the prior art that the tunnel portal platform is difficult to meet the quality requirements through conventional large-scale roadbed filling.

[0005] According to one aspect of the utility model, there is provided an assembled roadbed module, comprising:

[0006] A gabion cage has a frame arranged corresponding to each surface, a mesh structure is arranged inside the frame, and the gabion cage includes a connecting structure for connecting adjacent edges of each frame and constraining a preset gap range between adjacent edges of adjacent frames;

[0007] A water seepage retaining layer is laid in the gabion cage;

[0008] Sandy materials are filled in the water seepage retaining layer.

[0009] As a further improvement of the above technical solution, the connection structure includes a first connecting member and a second connecting member, and the edge of the frame of the bottom surface and the edge of the frame of the adjacent vertical surface are connected through the first connecting member, and the first connecting member is used to constrain the first gap range between the edge of the frame of the bottom surface and the edge of the frame of the adjacent vertical surface, and the edges of the frames of the adjacent vertical surfaces are connected through the second connecting member, and the second connecting member is used to constrain the gap range of the edges of the frames of the adjacent vertical surfaces to gradually increase from the bottom to the top.

[0010] As a further improvement of the above technical solution, the connection structure also includes a third connecting member and a fourth connecting member, the edge of the frame on the top surface and the edge of the frame on the adjacent vertical surface are connected through the third connecting member, and the third connecting member is used to constrain the second gap range of the edge of the frame on the bottom surface and the edge of the frame on the adjacent vertical surface. The edge of the frame on the top surface and the edge of the frame on the adjacent vertical surface are also connected through the fourth connecting member, and the fourth connecting member is used to constrain the third gap range of the edge of the frame on the bottom surface and the edge of the frame on the adjacent vertical surface, and the third gap range is larger than the second gap range. The fourth connecting member is used to increase the restriction range of the activity space of the frame on the vertical surface of the gabion cage after the third connecting member is removed.

[0011] As a further improvement of the above technical solution, the first connecting member is a first spiral rib of a first diameter, and the first spiral rib is sleeved on the edge of the frame of the bottom surface and the edge of the frame of the adjacent vertical surface; the second connecting member is a second spiral rib whose diameter gradually increases along the axial direction, and the second spiral rib is sleeved on the edge of the frame of the adjacent vertical surface; the third connecting member is a third spiral rib, and the third spiral rib is sleeved on the edge of the frame of the top surface and the edge of the frame of the adjacent vertical surface; the fourth connecting member is a fourth spiral rib, and the fourth spiral rib is sleeved on the edge of the frame of the top surface and the edge of the frame of the adjacent vertical surface, and the diameter of the fourth spiral rib is greater than the diameter of the third spiral rib.

[0012] As a further improvement of the above technical solution, the connection structure also includes a fifth connecting member for connecting adjacent gabions.

[0013] As a further improvement of the above technical solution, the fifth connecting member is a fifth spiral rib with a preset diameter.

[0014] As a further improvement of the above technical solution, the mesh structures in the frames of the top surface and the bottom surface of the gabion cage are set as flexible meshes, and the mesh structure of the frame of the vertical surface of the gabion cage is set as a rigid mesh.

[0015] As a further improvement of the above technical solution, the assembled roadbed module also includes a lifting structure arranged on the gabion cage.

[0016] As a further improvement of the above technical solution, the water seepage retaining layer is a geotextile.

[0017] According to another aspect of the utility model, a tunnel construction platform is also provided, which includes the above-mentioned assembled roadbed module.

[0018] The utility model has the following beneficial effects:

[0019] The prefabricated roadbed module can be used to build a temporary working platform outside the tunnel. Through the prefabricated structure, each layer is laid at intervals and stacked layer by layer, and the interval area is filled with fillers, so that it can be assembled into a temporary working platform that can be used in a turnover manner; the prefabricated roadbed module is based on a gabion cage structure, in which a water seepage retaining layer is laid, and sandy materials are selected as internal filling materials. The material is low-cost and easy to obtain, and has greater plasticity when dry and loose. It has good adaptability to environments with large slope and surface undulations, and solves the problem that the existing earthwork filling is prone to cause environmental and water conservation risks. The connection between the frames on each side of the gabion cage is limited to a preset gap range by a connecting structure. The prefabricated roadbed module has adjustment space between the edges of the gabion cage frame after the filling construction, so that the sandy material inside can quickly settle and expand the compressed filler space under the action of its own weight, so that the filler between the seams is compressed and dense, effectively reducing the probability of slippage of the temporary working platform and avoiding the adverse effects caused by horizontal displacement.

[0020] In addition to the above-described purposes, features and advantages, the present invention has other purposes, features and advantages. The present invention will be further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The drawings constituting a part of this application are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0022] Figure 1 It is a structural schematic diagram of the connection structure of the preferred embodiment of the utility model;

[0023] Figure 2 This is a schematic diagram of the structure of a gabion cage according to a preferred embodiment of the utility model;

[0024] Figure 3 It is a structural schematic diagram of the first connecting member and the third connecting member of the preferred embodiment of the utility model;

[0025] Figure 4 It is a structural schematic diagram of the second connecting member of the preferred embodiment of the utility model;

[0026] Figure 5 It is a structural schematic diagram of the fourth connecting member of the preferred embodiment of the utility model;

[0027] Figure 6 It is a structural schematic diagram of the fifth connecting member of the preferred embodiment of the utility model.

[0028] Legend:

[0029] 1. Frame 11, flexible net 12, rigid net 2, first connecting member 3, second connecting member 4, fourth connecting member 5, fifth connecting member. DETAILED DESCRIPTION

[0030] The embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. However, the present invention can be implemented in a variety of different ways as defined and covered below.

[0031] Figure 1 It is a structural schematic diagram of the connection structure of the preferred embodiment of the utility model; Figure 2 This is a schematic diagram of the structure of a gabion cage according to a preferred embodiment of the utility model; Figure 3 It is a structural schematic diagram of the first connecting member and the third connecting member of the preferred embodiment of the utility model; Figure 4 It is a structural schematic diagram of the second connecting member of the preferred embodiment of the utility model; Figure 5 It is a structural schematic diagram of the fourth connecting member of the preferred embodiment of the utility model; Figure 6 It is a structural schematic diagram of the fifth connecting member of the preferred embodiment of the utility model.

[0032] like Figures 1 to 6 As shown, the assembled roadbed module of this embodiment includes:

[0033] The gabion cage has a frame 1 arranged corresponding to each surface, a mesh structure is arranged inside the frame 1, and the gabion cage includes a connecting structure for connecting adjacent edges of each frame 1 and constraining a preset gap range between adjacent edges of adjacent frames 1;

[0034] The water seepage retaining layer is laid inside the gabion cage;

[0035] Sandy materials are filled in the water-seepage retaining layer.

[0036] Among them, the sandy material is sandy soil, the seepage retaining layer has a filtering effect, has a certain permeability to rainwater, etc., and at the same time wraps the internal sandy material to prevent the sandy material from leaking out, thereby ensuring the integrity of the structure; the seepage retaining layer of this embodiment is selected to be a permeable geotextile.

[0037] It can be understood that the prefabricated roadbed module can be used to build a temporary working platform outside the tunnel. Through the prefabricated structure, each layer is laid at intervals and stacked layer by layer, and the interval area is filled with fillers, so that it can be assembled into a temporary working platform that can be used in rotation; the prefabricated roadbed module is based on the gabion cage structure, in which a water seepage retaining layer is laid, and sandy materials are selected as internal filling materials. The material is low-cost and easy to obtain, and has greater plasticity when dry and loose. It has good adaptability to environments with large slope and surface undulations, and solves the problem that the existing earthwork filling is prone to cause environmental and water conservation risks. The connection between the frames 1 on each side of the gabion cage is limited to a preset gap range by a connecting structure. The prefabricated roadbed module has an adjustment space between the edges of the gabion cage frame 1 after the filling construction, so that the sandy material inside can quickly settle and expand the compressed filler space under the action of its own weight, so that the filler between the seams is compressed and dense, effectively reducing the probability of slippage of the temporary working platform and avoiding the adverse effects caused by horizontal displacement.

[0038] In this embodiment, the mesh structure inside the frame 1 on the top surface and the frame 1 on the bottom surface of the gabion cage is set as a flexible mesh 11, specifically a flexible steel wire mesh, and the mesh structure of the frame 1 on the vertical surface of the gabion cage is set as a rigid mesh 12, specifically a rigid steel wire mesh. The top and bottom surfaces are set as flexible mesh 11 to adapt to the uneven surface of the ground or the adjacent roadbed module, and have good environmental adaptability.

[0039] In this embodiment, the connection structure includes a first connection member 2 and a second connection member 3. The edge of the bottom frame 1 and the edge of the adjacent vertical frame 1 are connected by the first connection member 2. The first connection member 2 is used to constrain the first gap range between the edge of the bottom frame 1 and the edge of the adjacent vertical frame 1. The edges of the adjacent vertical frames 1 are connected by the second connection member 3. The second connection member 3 is used to constrain the gap range of the edges of the adjacent vertical frames 1 to gradually increase from the bottom to the top. Specifically, the first gap range is limited by the connection structure, the gap range between the vertical frame 1 and the bottom frame 1 is smaller, and the gap range between the vertical frame 1 and the top frame 1 is larger, so that the vertical frame 1 can rotate relative to the connection position with the bottom frame 1. After filling, under the action of the self-weight settlement of the internal sandy material, the gabion cage expands outward from a rectangular parallelepiped to a prism shape, compacting the filler;

[0040] Further, the connection structure also includes a third connecting member and a fourth connecting member 4, the edge of the frame 1 on the top surface and the edge of the frame 1 on the adjacent vertical surface are connected by the third connecting member, and the third connecting member is used to constrain the second gap range of the edge of the frame 1 on the bottom surface and the edge of the frame 1 on the adjacent vertical surface. The edge of the frame 1 on the top surface and the edge of the frame 1 on the adjacent vertical surface are also connected by the fourth connecting member 4, and the fourth connecting member 4 is used to constrain the third gap range of the edge of the frame 1 on the bottom surface and the edge of the frame 1 on the adjacent vertical surface, and the third gap range is larger than the second gap range. The fourth connecting member 4 is used to increase the restriction range of the activity space of the frame 1 on the vertical surface of the gabion cage after the third connecting member is removed. It can be understood that the third connector and the fourth connector 4 are respectively arranged on the top of the gabion cage in the present assembled roadbed module, and the third connector constrains the second gap range between the edge of the bottom frame 1 and the edge of the adjacent vertical frame 1, and the second gap range is relatively small, that is, the gabion cage is kept in a rectangular state under the action of the first connector 2 and the second connector 3, so as to maintain structural stability during the processes of transportation, filling, and demolition. After filling, the third connector is removed, and the gap range is constrained by the fourth connector 4, so that the vertical frame 1 has an outward swing range. Under the action of the deadweight of the sandy soil, the vertical frame 1 rotates outward based on the bottom surface, and its range of movement is constrained by the second connector 3 and the fourth connector 4;

[0041] It should be understood that the first connecting member 2 is a first spiral rib of a first diameter, and the first spiral rib is sleeved on the edge of the frame 1 on the bottom surface and the edge of the frame 1 on the adjacent vertical surface; the second connecting member 3 is a second spiral rib with a diameter gradually increasing along the axial direction, and the second spiral rib is sleeved on the edge of the frame 1 on the adjacent vertical surface; the third connecting member is a third spiral rib, which is the same as the first spiral rib, and the third spiral rib is sleeved on the edge of the frame 1 on the top surface and the edge of the frame 1 on the adjacent vertical surface; the fourth connecting member 4 is a fourth spiral rib, and the fourth spiral rib is sleeved on the edge of the frame 1 on the top surface and the edge of the frame 1 on the adjacent vertical surface, and the diameter of the fourth spiral rib is greater than the diameter of the third spiral rib;

[0042] In this embodiment, the connection structure further includes a fifth connection member 5 for connecting adjacent gabions. After filling, the fifth connection member 5 can be installed after the third connection member is removed to connect adjacent roadbed modules, thereby connecting the assembled roadbed modules as a whole and making the structure more stable.

[0043] It should be understood that the fifth connecting member 5 is a fifth spiral rib with a preset diameter, the diameter of the fifth spiral rib is greater than the diameter of the fourth spiral rib, and the fifth spiral rib is to constrain the edges of the frame 1 within two adjacent fourth spiral ribs to form a connection relationship.

[0044] In this embodiment, the assembled roadbed module also includes a lifting structure arranged on the gabion cage. In this embodiment, a lifting ring is taken as an example. The lifting ring is detachably connected to the frame 1. The assembled roadbed module can be lifted and transported by installing the lifting ring.

[0045] During dismantling, the fifth connecting piece 5 is removed, the lifting ring is connected to the frame 1 of the gabion cage, and the gabion cage is folded back into a rectangular state while lifting, and the third connecting piece is installed again to constrain it so that the gabion cage maintains a rectangular structure for storage and turnover use after transportation.

[0046] On the other hand, a tunnel construction platform is also provided, which is applied with the above-mentioned assembled roadbed module.

[0047] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. An assembled roadbed module, characterized in that: include: A gabion cage comprises a frame (1) arranged corresponding to each face, a mesh structure is arranged inside the frame (1), and the gabion cage comprises a connection structure for connecting adjacent edges of each frame (1) and constraining a preset gap range between adjacent edges of adjacent frames (1); A water seepage retaining layer is laid in the gabion cage; Sandy materials are filled in the water seepage retaining layer.

2. The assembled roadbed module according to claim 1, characterized in that: The connection structure comprises a first connection member (2) and a second connection member (3); the edge of the bottom frame (1) and the edge of the adjacent vertical frame (1) are connected via the first connection member (2); the first connection member (2) is used to constrain a first gap range between the edge of the bottom frame (1) and the edge of the adjacent vertical frame (1); the edges of the adjacent vertical frames (1) are connected via the second connection member (3); the second connection member (3) is used to constrain the gap range of the edges of the adjacent vertical frames (1) to gradually increase from the bottom to the top.

3. The assembled roadbed module according to claim 2, characterized in that: The connection structure further comprises a third connection member and a fourth connection member (4), the edge of the top surface frame (1) and the edge of the adjacent vertical surface frame (1) are connected via the third connection member, the third connection member is used to constrain the second gap range of the edge of the bottom surface frame (1) and the edge of the adjacent vertical surface frame (1), the edge of the top surface frame (1) and the edge of the adjacent vertical surface frame (1) are also connected via the fourth connection member (4), the fourth connection member (4) is used to constrain the third gap range of the edge of the bottom surface frame (1) and the edge of the adjacent vertical surface frame (1), the third gap range is larger than the second gap range, and the fourth connection member (4) is used to increase the range of restriction on the activity space of the vertical surface frame (1) of the gabion cage after the third connection member is removed.

4. The assembled roadbed module according to claim 3, characterized in that: The first connecting member (2) is a first spiral rib of a first diameter, and the first spiral rib is sleeved on the edge of the frame (1) on the bottom surface and the edge of the frame (1) on the adjacent vertical surface; the second connecting member (3) is a second spiral rib whose diameter gradually increases along the axial direction, and the second spiral rib is sleeved on the edge of the frame (1) on the adjacent vertical surface; the third connecting member is a third spiral rib, and the third spiral rib is sleeved on the edge of the frame (1) on the top surface and the edge of the frame (1) on the adjacent vertical surface; the fourth connecting member (4) is a fourth spiral rib, and the fourth spiral rib is sleeved on the edge of the frame (1) on the top surface and the edge of the frame (1) on the adjacent vertical surface, and the diameter of the fourth spiral rib is greater than the diameter of the third spiral rib.

5. The assembled roadbed module according to any one of claims 1 to 4, characterized in that: The connection structure also includes a fifth connection member (5) for connecting adjacent gabions.

6. The assembled roadbed module according to claim 5, characterized in that: The fifth connecting member (5) is a fifth spiral rib having a preset diameter.

7. The assembled roadbed module according to claim 1, characterized in that: The mesh structures in the frame (1) on the top surface and the frame (1) on the bottom surface of the gabion cage are configured as flexible meshes (11), and the mesh structure in the frame (1) on the vertical surface of the gabion cage is configured as a rigid mesh (12).

8. The assembled roadbed module according to claim 1, characterized in that: The assembled roadbed module also includes a hoisting structure arranged on the gabion cage.

9. The assembled roadbed module according to claim 1, characterized in that: The water seepage retaining layer is geotextile.

10. A tunnel construction platform, characterized in that: The invention relates to an assembled roadbed module according to any one of claims 1 to 9.

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