Highway roadbed slope reinforced earth retaining wall

Abstract

The utility model discloses a highway subgrade slope reinforced earth retaining wall, which belongs to the technical field of road construction, and comprises a frame main body, the outer side wall of the frame main body is provided with a clamping groove, the frame main body is clamped with a retaining box through the clamping groove, the inner side wall of the retaining box is fixedly connected with a limiting rod, and the retaining box is detachably connected with a splicing cable through the limiting rod. The inner bottom of the blocking box is rotationally connected with a threaded rod, and the outer side wall of the threaded rod is in threaded connection with a moving block. According to the reinforced earth retaining wall for the highway subgrade slope, through the threaded rods, the moving blocks, the moving grooves, the limiting blocks, the limiting grooves, the pressing plates and the protruding blocks, the uniformity of the paving thickness of filler is conveniently improved, so that the surface flatness of the filler is improved, and the situation that the difference of earth pressure borne by a rib belt at different positions is increased is avoided; therefore, the situation that the rib belt part with large stress possibly reaches limit stress too early to be damaged, for example, the metal rib belt possibly breaks, the geosynthetics rib belt possibly loses strength due to excessive stretching, and the stability of the whole reinforced earth retaining wall is reduced is avoided.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of road construction, and specifically relates to a reinforced soil retaining wall for highway subgrade slope. BACKGROUND

[0002] As an important structure for protecting highway subgrade slope, the reinforced soil retaining wall is widely used in highway engineering. The retaining wall stably bears various loads from the subgrade slope, including the self-weight of soil and traffic load, during long-term use, so as to ensure the stability of the highway subgrade slope and protect the normal use and driving safety of the highway.

[0003] However, in actual engineering, when the paving thickness of the filler cannot be guaranteed to be uniform and consistent and the surface flatness is poor, the earth pressure on the reinforcement belt at different positions will change greatly due to the difference in the thickness of the filler, and the earth pressure at local positions may be far beyond the design value. In this case, the force on the reinforcement belt is seriously uneven. For the metal reinforcement belt, excessive stress may cause it to break. For the geosynthetic reinforcement belt, excessive stretching may rapidly reduce its strength. Once the reinforcement belt is partially disabled, the stability of the entire reinforced soil retaining wall will be greatly threatened, the earth pressure behind the wall cannot be effectively balanced, the face plate may be deformed or cracked, and even the entire retaining wall may be unstable, which seriously affects the safety of the highway subgrade slope, increases the road maintenance cost, and may even cause traffic accidents, bringing great risks to passing vehicles and pedestrians.

[0004] To solve the above problems, the present application provides a reinforced soil retaining wall for highway subgrade slope. CONTENT OF THE UTILITY MODEL

[0005] In view of the problems in the related art, the utility model provides a reinforced soil retaining wall for highway subgrade slope to overcome the above technical problems existing in the prior art.

[0006] To achieve the above purpose, the utility model adopts the following technical scheme:

[0007] The reinforced soil retaining wall for highway subgrade slope comprises a frame main body, a clamping groove is formed in the outer side wall of the frame main body, a retaining box is clamped to the frame main body through the clamping groove, a limiting rod is fixedly connected to the inner side wall of the retaining box, a splicing cable is detachably connected to the retaining box through the limiting rod, a threaded rod is rotatably connected to the inner bottom of the retaining box, a moving block is threadedly connected to the outer side wall of the threaded rod, a moving groove is formed in the outer side wall of the retaining box, a limiting block is fixedly connected to the outer side wall of the moving block, the outer side wall of the limiting block is matched with the inner side wall of the moving groove, a limiting groove is formed in the inner side wall of the limiting block, and a pressing plate is slidably connected to the limiting block through the limiting groove. The part of the outer side wall of the pressing plate located inside the moving groove is provided with a protruding block, and the outer side wall of the protruding block is matched with the inner side wall of the limiting groove.

[0008] Preferably, the inner side wall of the blocking box is fixedly connected with an extrusion block, the outer side wall of the extrusion block is provided with a thread line, and the outer side wall of the extrusion block is threadedly connected with a nut.

[0009] By setting the extrusion block and the nut, the connection between the circular plate and the blocking box is reinforced, and the stability of the splicing cable is improved.

[0010] Preferably, the outer side wall of the splicing cable is fixedly connected with a circular plate, a cavity is arranged between the extrusion block and the nut, and the circular plate is located inside the cavity.

[0011] By setting the circular plate and the cavity, the circular plate is extruded by the rotating nut, and the firmness between the splicing cable and the limiting rod is improved.

[0012] Preferably, a jack is formed in the top of the blocking box, a rotating block is fixedly connected to the top of the threaded rod, the rotating block is located inside the jack, and the cross section of the rotating block is a regular hexagon.

[0013] By setting the rotating block and the jack, the threaded rod can be rotated by the operator, and the efficiency is improved.

[0014] Preferably, the splicing cable comprises a first cable and a second cable, an accommodating groove is formed in the second cable, an extension rod is fixedly connected to one end of the first cable away from the blocking box, and the extension rod is located inside the accommodating groove.

[0015] By setting the accommodating groove and the extension rod, the splicing cable can be extended, and the adaptability of the splicing cable is improved.

[0016] Preferably, a return spring is arranged on the outer side wall of the extension rod, a limiting plate is fixedly connected to one end of the extension rod away from the first cable, and one end of the return spring away from the limiting plate is fixedly connected with the second cable.

[0017] By setting the extension rod and the return spring, the first cable and the second cable can be pulled, and the traction strength of the splicing cable on the soil is improved.

[0018] Preferably, a support plate is fixedly connected to one side of the frame body away from the splicing cable, and an inclination angle is arranged on the outer wall of one side of the support plate away from the frame body, so as to support the frame body.

[0019] By setting the support plate, the support force of the frame body is improved, and the firmness of the frame body is improved.

[0020] In summary, the technical effects and advantages of the utility model are: the highway roadbed slope reinforced soil retaining wall, through the threaded rod, the moving block, the moving groove, the limiting block, the limiting groove, the pressing plate, the convex block, the uniformity of the filling material paving thickness is facilitated to be improved, thereby the surface flatness of the filling material is improved, the difference of the earth pressure received by the ribbons at different positions is avoided from being increased, and then the possibility that the part of the ribbons with large stress reaches the limit stress too early and is damaged is avoided, such as the metal ribbons are broken, the geosynthetic material ribbons are excessively stretched and lose strength, thereby the stability of the whole reinforced soil retaining wall is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is the whole structure schematic view of the utility model;

[0022] Figure 2 It is the threaded rod and the related part structure schematic view of the utility model;

[0023] Figure 3 It is the moving block and the related part structure schematic view of the utility model;

[0024] Figure 4 It is the pressing plate and the related part structure schematic view of the utility model;

[0025] Figure 5 It is the extrusion block and the related part structure schematic view of the utility model

[0026] Figure 6 It is the extension rod and the related part structure schematic view of the utility model.

[0027] In the drawing: 1, frame main body;2, clamping groove;3, blocking box;4, limiting rod;5, splicing cable;501, first cable;502, second cable;6, threaded rod;7, moving block;8, moving groove;9, limiting block;10, limiting groove;11, pressing plate;12, convex block;13, extrusion block;14, nut;15, circular plate;16, cavity;17, containing groove;18, extension rod;19, return spring;20, support plate;21, jack;22, rotating block;23, limiting plate. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments.

[0029] REFERENCE Figures 1-3The utility model provides a kind of highway embankment slope reinforced soil retaining wall, including frame main body 1, the outer side wall of frame main body 1 is equipped with clamping groove 2, frame main body 1 is provided with two, two frame main body 1 can be respectively arranged in the two sides of road, one of frame main body 1 is connected with retaining box 3 by clamping groove 2, retaining box 3 is provided with several, several retaining box 3 are mutually connected, to form retaining wall, the inner side wall of one of retaining box 3 is fixedly connected with two limit rods 4, the other end of the two splicing cables 5 is connected with another retaining box 3 respectively, the inner bottom of retaining box 3 is rotatably connected with threaded rod 6, threaded rod 6 is located at the inner bottom center of retaining box 3, the outer side wall of threaded rod 6 is threadedly connected with moving block 7, the outer side wall of retaining box 3 is equipped with moving groove 8, the outer side wall of moving block 7 is fixedly connected with limiting block 9, the outer side wall of limiting block 9 is matched with the inner side wall of moving groove 8, the inner side wall of limiting block 9 is equipped with limiting groove 10, limiting groove 10 is composed of two linear grooves and a circular groove, limiting block 9 is slidably connected with pressing plate 11 by limiting groove 10, the part of the outer side wall of pressing plate 11 in moving groove 8 is provided with lug 12, the outer side wall of lug 12 is matched with the inner side wall of limiting groove 10, when lug 12 is located in the two linear grooves, pressing plate 11 is vertically distributed with the top line of retaining box 3, when lug 12 is located in the circular groove, pressing plate 11 can be rotated along lug 12, and then the operator can adjust lug 12 to horizontal state.

[0030] Refer to Figure 4 The inner side wall of one of retaining box 3 is fixedly connected with two extrusion blocks 13, two extrusion blocks 13 are symmetrically distributed with the center line of retaining box 3, and the outer side wall of two extrusion blocks 13 is respectively provided with threaded line, the outer side wall of two extrusion blocks 13 is respectively threadedly connected with nut 14, and splicing cable 5 is located in the interior of extrusion block 13.

[0031] Refer to Figure 4 The outer side wall of splicing cable 5 is fixedly connected with circular plate 15, cavity 16 is arranged between extrusion block 13 and nut 14, circular plate 15 is located in the interior of cavity 16, when rotating nut 14, the inner side wall of nut 14 is in contact with the outer side wall of circular plate 15, at this time, with the rotation of nut 14, nut 14 gradually approaches the inner side wall of retaining box 3, at this time, the movement of nut 14 will pull one end of splicing cable 5 through circular plate 15, to make the connection of splicing cable 5 and limit rod 4 more closely, avoid that splicing cable 5 and limit rod 4 are separated or gap is generated between the two in the process of use.

[0032] Refer to Figure 3The top of the blocking box 3 is provided with a jack 21, the top of the threaded rod 6 is fixedly connected with a rotating block 22, the rotating block 22 is located in the inside of the jack 21, the top of the rotating block 22 is flush with the top of the blocking box 3, so that there is no gap between the multiple blocking boxes 3 during installation and use, and the cross section of the rotating block 22 is a regular hexagon, so that the operator can rotate the threaded rod 6 by using other tools, such as a wrench, thereby improving the installation efficiency.

[0033] With reference to Figure 6 The splicing cable 5 comprises a first cable 501 and a second cable 502, the inside of the second cable 502 is provided with a containing groove 17, the end of the first cable 501 away from the blocking box 3 is fixedly connected with an extension rod 18, the extension rod 18 is located in the inside of the containing groove 17, and one end of the containing groove 17 is provided with a clamping plate matched with the outer diameter of the extension rod 18, the two are matched with each other, so that the extension rod 18 can slide in the inside of the containing groove 17 and will not fall off, thereby facilitating the extension of the splicing cable 5.

[0034] With reference to Figure 6 The outer side wall of the extension rod 18 is provided with a return spring 19, the end of the extension rod 18 away from the first cable 501 is fixedly connected with a limiting plate 23, and the end of the return spring 19 away from the limiting plate 23 is fixedly connected with the second cable 502. When the splicing cable 5 is extended, the return spring 19 is compressed, and the two parts of the splicing cable 5 are pulled by the elastic force of the return spring 19, thereby improving the pulling of the splicing cable 5 on the two sides of the soil slope and further improving the stability of the two sides of the soil slope.

[0035] With reference to Figure 1 The side of the frame body 1 away from the splicing cable 5 is fixedly connected with a support plate 20, and the outer side wall of the side of the support plate 20 away from the frame body 1 is provided with an inclined angle, so as to support the frame body 1. The outer side of the frame body 1 is provided with two support plates 20, and each is provided with an inclined angle. The earth pressure behind the retaining wall composed of the frame body 1 and the multiple blocking boxes 3 mainly acts on the retaining wall in the horizontal direction. The existence of the inclined support plate 20 changes the direction of the earth pressure. When the earth pressure acts on the support plate 20, part of the horizontal force is decomposed into inclined pressure along the inclined direction, so that the originally single-direction large force is dispersed to different directions, thereby reducing the pressure peak of the retaining wall main structure in the horizontal direction and reducing the horizontal load intensity directly borne by the retaining wall.

[0036] Working principle: in use, the operator arranges the bottom layer of the blocking box 3, covers the filler to the top of the spliced cable 5, further adjusts the pressing plate 11 to the horizontal state, at this time the operator can place the pressing plate on the top of the filler and make the pressing plate below the pressing plate 11, then rotate the threaded rod 6, the threaded rod 6 rotates to drive the moving block 7 to move, when the moving block 7 drives the pressing plate 11 to move towards the pressing plate, the pressing plate can be pressed, and then the filler is pressed flat by the pressing plate, so as to avoid the increase of the earth pressure difference of the tendon in different positions, and avoid the tendon part with large stress from being damaged due to reaching the limit stress too early.

[0037] The above merely describes the preferred embodiments of the present application and is not intended to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A reinforced soil retaining wall for highway embankment slopes, comprising a frame body (1), characterized in that, The outer side wall of the frame body (1) is provided with a clamping groove (2), the frame body (1) is clamped with a blocking box (3) through the clamping groove (2), the inner side wall of the blocking box (3) is fixedly connected with a limiting rod (4), the blocking box (3) is detachably connected with a splicing cable (5) through the limiting rod (4), the inner bottom of the blocking box (3) is rotatably connected with a threaded rod (6), the outer side wall of the threaded rod (6) is threadedly connected with a moving block (7), the outer side wall of the blocking box (3) is provided with a moving groove (8), the outer side wall of the moving block (7) is fixedly connected with a limiting block (9), the outer side wall of the limiting block (9) is matched with the inner side wall of the moving groove (8), the inner side wall of the limiting block (9) is provided with a limiting groove (10), the limiting block (9) is slidably connected with a pressing plate (11) through the limiting groove (10), the part of the outer side wall of the pressing plate (11) located in the moving groove (8) is provided with a protruding block (12), and the outer side wall of the protruding block (12) is matched with the inner side wall of the limiting groove (10).

2. The reinforced soil retaining wall of claim 1, wherein, The inner side wall of the blocking box (3) is fixedly connected with an extrusion block (13), the outer side wall of the extrusion block (13) is provided with a threaded line, and the outer side wall of the extrusion block (13) is threadedly connected with a nut (14).

3. The reinforced-soil retaining wall of claim 2, wherein, The outer side wall of the extrusion block (13) is provided with a threaded line, and the outer side wall of the extrusion block (13) is threadedly connected with a nut (14).

4. The reinforced-soil retaining wall of claim 1, wherein, The top of the blocking box (3) is provided with a jack (21), the top of the threaded rod (6) is fixedly connected with a rotating block (22), the rotating block (22) is located in the jack (21), and the cross section of the rotating block (22) is a regular hexagon.

5. The reinforced soil retaining wall of claim 1, wherein, The splicing cable (5) comprises a first cable (501) and a second cable (502), the inner side wall of the second cable (502) is provided with a containing groove (17), and the end of the first cable (501) away from the blocking box (3) is fixedly connected with an extension rod (18).

6. The reinforced-soil retaining wall of claim 5, wherein, The outer side wall of the extension rod (18) is provided with a reset spring (19), the end of the extension rod (18) away from the first cable (501) is fixedly connected with a limiting plate (23), and the end of the reset spring (19) away from the limiting plate (23) is fixedly connected with the second cable (502).

7. The reinforced soil retaining wall of claim 1, wherein, The side of the frame body (1) away from the splicing cable (5) is fixedly connected with a supporting plate (20), and the side wall of the supporting plate (20) away from the frame body (1) is provided with an inclination angle, so as to support the frame body (1).

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