Earth-stone roadbed construction structure

Abstract

The utility model discloses an earthwork roadbed construction structure, and belongs to the technical field of roadbed construction. Comprising multiple stages of steps, multiple stages of side slopes are arranged on the two sides of the multiple stages of steps, protection structures are arranged on the multiple stages of side slopes, each protection structure comprises a protection net and a pressing strip, the protection nets are laid on the multiple stages of side slopes, and the pressing strips are arranged on the protection nets and fixedly connected with the multiple stages of side slopes. The pressing strip is used for pressing and fixing the protective net on the multi-stage side slope and is formed by splicing a plurality of connecting sections; the protection net is directly laid on the side slope and is pressed and fixed through the pressing strips with the changeable lengths, the protection net can adapt to the side slopes with different heights, meanwhile, along with construction, the side slope is excavated downwards to be heightened, the protection net can be directly laid on the newly-formed side slope, then the pressing strips on the upper portion are lengthened, and the newly-laid protection net can be fixed. And the protection of the new-grade side slope is completed.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the roadbed construction technical field, specifically belongs to a kind of earthwork roadbed construction structure. BACKGROUND

[0002] The excavation roadbed below the original ground is called cutting, which is the roadbed form formed by excavation from the original ground. It can play the role of moderating road longitudinal slope or controlling elevation of trans-mountain line crossing ridge. Cutting construction is an important link in road construction process, mainly involving excavation of natural ground to form cutting structure. This process needs to excavate and transport earthwork according to the elevation and requirements of road design. When the project is in the mountainous area with more rain in the south, the side slope is prone to collapse, landslide, debris flow and other disasters; Therefore, the side slope needs to be protected during the cutting excavation process, and the existing technology usually sets a protective net at the side slope position, which can reduce the rainwater erosion of the side slope and prevent the side slope from collapsing to cause personal injury.

[0003] For example, the Chinese utility model patent with application number CN202323661682.4 provides a protective device for highway cutting high side slope construction, which includes a fixed part and a protective part. The fixed part has a sandwich layer inside, and the protective part is inserted into the sandwich layer of the fixed part. The fixed part is fixed on the cutting side slope through anchor rod. The fixed part has an installation slot inside, and the protective part is inserted into the installation slot through the opening at the bottom of the fixed part. The protective part includes a frame and a protective net, and the protective net is embedded in the frame. The fixed part is a rectangular frame structure, and a plurality of rectangular openings are formed on the fixed part. In the utility model, the protective net is arranged as a sandwich layer in the fixed part, and the protective net is firmly fixed inside the frame, so that the protective net is not easy to fall off from the frame, and the risk caused by the side slope collapse is eliminated, which ensures the safety of on-site construction. The frame is arranged at the edge of the protective net, which further improves the firmness of the protective net installation and prevents the protective net from falling out of the fixed part.

[0004] The utility model has good protection effect, but the installation is too cumbersome, especially when using multi-layer transverse full-width excavation method to excavate deep cutting, since the cutting is excavated in layers, the side slope will also form multiple levels, and the new side slope formed after deeper cutting needs to be installed with protective net, especially when the construction is carried out in this way, the protective net needs to be removed, so a side slope protection structure with quick disassembly and assembly is needed. UTILITY MODEL CONTENT

[0005] Therefore, the utility model aims to overcome the shortcomings of the prior art, and provides an earthwork roadbed construction structure, which provides the following technical solutions:

[0006] The multi-stage steps are provided with multi-stage slopes on both sides, and a protection structure is arranged on each of the multi-stage slopes, the protection structure comprises a protective net and a pressing strip, the protective net is laid on the multi-stage slope, the pressing strip is arranged on the protective net and is fixedly connected with the multi-stage slope, and the pressing strip is used for pressing and fixing the protective net on the multi-stage slope, and the pressing strip is composed of a plurality of connecting segments.

[0007] The protective net is laid on the multi-stage slope, and the pressing strip is pressed and fixed, so that the protective net is fixed, and the pressing strip is composed of a plurality of connecting segments, so that the length of the pressing strip can be changed by disassembling the connecting segments, the pressing strip can be adapted to different slope heights, and when the multi-stage steps are deepened and the slope is extended, the protective net can be laid on the newly formed slope below, and the pressing strip above is spliced and extended, so that the newly formed slope can be protected, and the protective net can be removed after the pressing strip is disassembled, so that the protective net is convenient and fast to disassemble.

[0008] A plurality of anchor columns are connected to the pressing strip, and the anchor columns are inserted into the multi-stage slope to fix the pressing strip.

[0009] The connecting segment comprises a side plate and a pin shaft, the front end and the rear end of the side plate are provided with through holes, the rear end of the side plate of the previous connecting segment is aligned with the front end of the side plate of the next connecting segment, and the pin shaft is penetrated and connected.

[0010] The side plates are connected to the both sides of the pin shaft, and the side plates on the both sides of the same pin shaft are left with a gap, the anchor column comprises a column body and a column cap on the top of the column body, the column body is inserted into the multi-stage slope through the gap, and the column cap presses the side plate to the multi-stage slope.

[0011] Through the above arrangement, the pressing strip adopts a similar structure as a chain, can be lengthened and shortened by disassembling and assembling the connecting segments like a chain, and the side plate can rotate around the pin shaft, so that the pressing strip can be bent at will, and can be kept in close contact with the slopes with different shapes and flatness, so as to ensure the pressing effect of the protective net, and the side plates of each connecting segment are left with a gap, so that the anchor column can be installed in more positions in actual use; when the pressing strip is stored, the pressing strip can be rolled up, so that the pressing strip is convenient to store.

[0012] The side plate is provided with a plug near the side of the multi-stage slope, and the plug penetrates the protective net.

[0013] When the pressing strip is arranged on the protective net, the plug can penetrate the protective net to hook and fix the protective net.

[0014] The pressing strip is longitudinally arranged on the multi-stage slope.

[0015] The first connecting segment and the tail connecting segment of the pressing strip are connected by a pulling rope.

[0016] In the process of removing the pressing strip, after pulling out the anchor column, the pulling rope is pulled at the top of the pressing strip, the tail of the pressing strip is pulled upward, the whole pressing strip can be pulled down, and the disassembly is convenient.

[0017] In summary, due to the adoption of the above technical scheme, the beneficial effects of the utility model are:

[0018] The protective net is directly laid on the slope, is fixed by pressing and combining through the pressing strip with changeable length, can adapt to slopes with different heights, and meanwhile, with the construction, if the slope is excavated downward and is increased in height, a newly formed slope can directly lay the protective net, and the newly laid protective net can be fixed by increasing the pressing strip at the upper portion, and the protection of the new slope is completed.

[0019] In order to make the above purposes, features and advantages of the present application more obvious and easy to understand, the following preferred embodiments are specifically described, and the accompanying drawings are described in detail as follows. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments, and it should be understood that the following drawings only show some embodiments of the present application, and should not be regarded as a limitation to the scope, and for those skilled in the art, other related drawings can also be obtained without creative labor on the basis of the drawings.

[0021] Figure 1 It is a kind of earthwork subgrade construction structure multistage step synchronous construction schematic view.

[0022] Figure 2 It is a kind of earthwork subgrade construction structure reserved passage excavation construction schematic view.

[0023] Figure 3 It is a kind of earthwork subgrade construction structure pressing strip schematic view.

[0024] Figure 4 It is a kind of earthwork subgrade construction structure pressing strip detail view.

[0025] Reference signs: 1, multistage step;11, first step;111, reserved passage;12, second step;2, multistage slope;21, first slope;22, second slope;3, protective structure;31, protective net;32, pressing strip;321, connecting section;322, side plate;323, pin shaft;324, plug;33, anchor column;331, column body;332, column cap. DETAILED DESCRIPTION

[0026] Embodiments of the present application are described below in detail with reference to examples thereof illustrated in the accompanying drawings, wherein like or similar elements across the drawings are represented by like or similar reference numerals. The embodiments described below through reference to the drawings are exemplary only, and are for the purpose of explanation only, and are not to be taken as limiting of the present application.

[0027] In the present application, unless specifically defined otherwise and limited, the terms "mount", "connect", "connection", "fixed", and the like are to be construed broadly, for example, can be fixed connection, can also be detachable connection, or integral; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be internal communication of two elements or interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0028] In the present application, unless specifically defined otherwise and limited, the first feature is "on" or "under" the second feature, which can be direct contact between the first and second features, or indirect contact between the first and second features through an intermediate medium. Moreover, the first feature "above", "over" and "on" the second feature can be directly above or obliquely above the first feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "under" and "under" the second feature can be directly below or obliquely below the first feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.

[0029] Please refer to Figures 1-4 As shown in the figure, the utility model provides a kind of earthwork subgrade construction structure, including multistage steps 1, multistage steps 1 both sides have multistage slope 2, protection structure 3 is uniformly provided on multistage slope 2, protection structure 3 includes protective net 31 and pressing strip 32, protective net 31 is laid on multistage slope 2, pressing strip 32 is set on protective net 31, and is fixedly connected with multistage slope 2, for pressing and fixing protective net 31 on multistage slope 2, pressing strip 32 is formed by a plurality of connecting segments 321 splicing.

[0030] As Figures 1-2As shown, the multi-stage step 1 includes a first stage step 11 and a second stage step 12; wherein the first stage step 11 is provided with a reserved passage 111 on one side for workers and vehicles to enter and exit; the first stage step 11 forms a first stage slope 21 on both sides, and the second stage step 12 forms a second stage slope 21 on both sides; when the first stage step 11 is not yet completed, the reserved passage 111 needs to be reserved; at this time, after the first stage step 11 is constructed, in order to protect the safety of the construction personnel on the first stage step 11, the first stage slope 21 on both sides needs to be installed with a protective structure 3; after the second stage step 11 is constructed, because the reserved passage 111 is reserved, the slope on the side of the second stage step 11 close to the reserved passage 111 forms a second stage slope 21, and the second stage slope 21 on the other side is excavated to align with the first stage slope 21; in order to protect the safety of the construction personnel on the second stage step 12, the second stage slope 21 on both sides also needs to be installed with a protective structure 3; after the first stage step 11 is completed, the reserved passage 111 on one side of the second stage slope 21 also needs to be excavated to align with the first stage slope 21 on that side, so the protective structure 3 on the reserved passage 111 needs to be removed, and the protective structure needs to be installed on the new slope formed after the reserved passage 111 is excavated.

[0031] The pressing strip 32 is connected with a plurality of anchor columns 33, and the anchor columns 33 are inserted into the multi-stage slope 2 to fix the pressing strip 32.

[0032] The connecting section 321 includes a side plate 322 and a pin shaft 323, and the front end and the rear end of the side plate 322 are provided with through holes; the rear end of the side plate 322 of the previous connecting section 321 is aligned with the front end of the side plate 322 of the next connecting section 321, and is connected through the pin shaft 323; wherein the side plate 322 is clamped on both ends of the pin shaft 323 and can rotate around the pin shaft 323; specifically, the pressing strip 32 can adopt a chain in the prior art.

[0033] The side plate 322 is connected with the pin shaft 323 on both sides, and the side plates 322 on both sides of the same pin shaft 323 are left with a gap; the anchor column 33 includes a column body 331 and a column cap 332 on the top of the column body 331; the column body 331 is inserted into the multi-stage slope 2 through the gap, and the column cap 332 presses the side plate 322 towards the multi-stage slope 2.

[0034] The side plate 322 is provided with a plug 324 on the side close to the multi-stage slope 2, and the plug 324 penetrates through the protective net 31.

[0035] The pressing strip 32 is longitudinally arranged on the multi-stage slope 2.

[0036] The first connecting section 321 and the tail connecting section 321 of the pressing strip 32 are connected by a pull rope.

[0037] In the embodiment, the protective structure is installed on the slope: the protective net 31 is laid on the slope, then the pressing strip 32 is placed on the protective net 31, and the pressing strip 32 is pulled at both ends to make the pressing strip 32 adhere to the slope, the nails 324 are inserted between the protective nets 31, the anchor column 33 is inserted into the slope through the side plates 322, the column cap 332 presses the pressing strip 32 to the slope, the pressing strip 32 presses the protective net 31 to the slope, and the nails 324 hook the protective net 31 to prevent the protective net 31 from deviating.

[0038] After the next level of slope is formed, the protective structure is installed: the protective net 31 is laid on the next level of slope, the pressing strip 32 with the same height as the next level of slope is selected, the side plates 322 of the first end connecting section 321 of the pressing strip 32 are clamped with the both ends of the pin shaft 323 of the tail end connecting section 321 of the already fixed pressing strip 32 on the previous level of slope, and the pressing strip 32 is connected, and the pulling rope on the already fixed pressing strip 32 can be tied with the pulling rope on the newly connected pressing strip 32; the anchor column 33 is inserted into the next level of slope through the newly installed pressing strip 32 to fix the newly laid protective net 31.

[0039] The protective structure is removed: the anchor column 33 through the pressing strip 32 is pulled out, then the pressing strip 32 is removed, and then the protective net 31 is removed; when the pressing strip 32 is removed, the construction personnel can pull the pulling rope at the top of the pressing strip 32, the pulling rope drives the tail of the pressing strip 32 to move upward and outward, and the whole pressing strip 32 is removed.

[0040] Although the embodiments of the application have been shown and described above, it should be understood that the above embodiments are exemplary and should not be construed as limiting the application, and those skilled in the art can make changes, modifications, replacements and variations to the above embodiments within the scope of the application.

Claims

1. An earthwork subgrade construction structure, characterized by: The application relates to a multi-stage step (1) provided with multi-stage slopes (2) on both sides, and a protection structure (3) arranged on the multi-stage slopes (2), wherein the protection structure (3) comprises a protection net (31) and a pressing strip (32), the protection net (31) is laid on the multi-stage slopes (2), the pressing strip (32) is arranged on the protection net (31) and is fixedly connected with the multi-stage slopes (2), the pressing strip (32) is used for pressing and fixing the protection net (31) on the multi-stage slopes (2), and the pressing strip (32) is composed of a plurality of connecting sections (321).

2. The earthwork roadbed construction structure according to claim 1, wherein: A plurality of anchor columns (33) are connected with the pressing strip (32), the anchor columns (33) are inserted into the multi-stage slopes (2) to fix the pressing strip (32).

3. The earthwork roadbed construction structure according to claim 2, wherein: The connecting section (321) comprises a side plate (322) and a pin shaft (323), the side plate (322) is provided with perforations at the front end and the rear end, the rear end perforation of the side plate (322) of the previous connecting section (321) is aligned with the front end perforation of the side plate (322) of the next connecting section (321), and the pin shaft (323) is penetrated and connected.

4. The earthwork roadbed construction structure according to claim 3, wherein: The side plate (322) is connected with the pin shaft (323) on both sides, the side plates (322) on both sides of the same pin shaft (323) are provided with gaps, the anchor column (33) comprises a column body (331) and a column cap (332) at the top of the column body (331), the column body (331) is inserted into the multi-stage slopes (2) through the gaps, and the column cap (332) presses the side plate (322) towards the multi-stage slopes (2).

5. An earthwork roadbed construction structure according to claim 4, wherein: The side plate (322) is provided with an insertion nail (324) on the side close to the multi-stage slopes (2), and the insertion nail (324) penetrates through the protection net (31).

6. The earthwork roadbed construction structure according to claim 1, wherein: The pressing strip (32) is longitudinally arranged on the multi-stage slopes (2).

7. The earthwork roadbed construction structure according to claim 2, wherein: The first connecting section (321) and the last connecting section (321) of the pressing strip (32) are bound with a pulling rope.

Images