Prefabricated retaining wall and usage method therefor

Abstract

The present application relates to the technical field of prefabricated retaining walls, and specifically relates to a prefabricated retaining wall and a usage method therefor. The prefabricated retaining wall comprises a connecting rod and several vertical columns, through which the connecting rod passes, wherein each of the vertical columns is provided with a central annular fastener for the passage of the connecting rod; three extension arms are circumferentially provided at intervals on each central annular fastener, and at least two extension arms have the same length; engagement slots are provided on the extension arms in the axial direction of the connecting rod; and a baffle is inserted between two corresponding engagement slots of every two adjacent vertical columns. A corresponding connection method of the prefabricated retaining wall in the present application can be selected on the basis of actual enclosure requirements, that is, a transverse connection structure with the connecting rod transversely arranged or a stacked lap-joint structure with the connecting rod vertically inserted, thereby realizing the adjustment of the width and height of an enclosure; moreover, the prefabricated retaining wall can also be suitable for annular deep excavation support; therefore, the prefabricated retaining wall has good adaptability and high expandability, and members thereof are convenient to assemble and disassemble, thereby facilitating the transfer and storage of the members.

Description

An assembled retaining wall and a method of using the same TECHNICAL FIELD

[0001] The present application relates to the technical field of assembled precast retaining walls, in particular to an assembled retaining wall and a method of using the same. BACKGROUND

[0002] Retaining walls are often used in engineering construction. Retaining walls are engineering structures that resist soil pressure behind the wall and improve the stability of the soil and engineering structures behind the wall. Currently, traditional retaining wall construction still uses on-site masonry or pouring forms, which results in long construction periods, high resource consumption, and inability to be reused. In recent years, some assembled retaining wall structures have emerged, which are precast in factories and assembled on construction sites, achieving rapid construction and secondary use of retaining walls.

[0003] The existing application number CN202211162429.1 discloses an assembled retaining wall and a construction method thereof. Each retaining wall unit includes a base member, a stand, and a retaining plate. The base member is arranged on a foundation. The stand is fixedly arranged on the upper part of the base member. Multiple base members are connected to each other through the concave-convex structure at the end. The retaining plate is fixedly arranged between adjacent stands. When using the existing assembled retaining wall, the following disadvantages are found: 1. The existing assembled retaining wall has a limited supporting height and is not suitable for high fill engineering; 2. The existing assembled retaining wall can only achieve single-direction soil retaining effect and cannot achieve ring-shaped enclosure, which is not suitable for ring-shaped pit support. SUMMARY

[0004] To overcome the shortcomings of the prior art, the present application aims to provide an assembled retaining wall that can achieve height direction expansion and is suitable for ring-shaped pit support, and a method of using the same.

[0005] The technical solution adopted by the present application to solve its technical problems is:

[0006] The assembled retaining wall comprises a connecting rod and a plurality of stands arranged on the connecting rod. The stand is provided with a central ring buckle for passing the connecting rod. Three extension arms are arranged on the central ring buckle in a ring shape. At least two of the extension arms have the same length. A clamping groove is formed on the extension arm in the axial direction of the connecting rod. A retaining plate is inserted between the two clamping grooves corresponding to the adjacent two stands.

[0007] As a preferred embodiment, the further technical solution of the present application is:

[0008] Preferably, a reinforcing bar hole is arranged at the end of the extension arm away from the central ring buckle.

[0009] Preferably, the three extending arms include a first side arm and two second side arms, the two second side arms have the same length, and the first side arm is provided with a clamping mechanism parallel to the two sides of the baffle; the clamping mechanism includes a clamping column hinged to the first side arm and a plurality of insertion slots for inserting the clamping column.

[0010] Preferably, the included angle between the first side arm and the second side arm and the included angle between the two second side arms are both 120 degrees.

[0011] Preferably, the thickness of the first side arm is twice the thickness of the second side arm.

[0012] Preferably, the first side arm is provided with a clamping groove on each of the front and rear sides perpendicular to the central ring buckle axis direction, and the second side arm is provided with a through groove penetrating the front and rear sides perpendicular to the central ring buckle axis direction.

[0013] Preferably, the cross section of the connecting rod is an equilateral polygon, and the central hole of the central ring buckle is adapted to the cross section of the connecting rod.

[0014] Preferably, the side wall of the central ring buckle is provided with a locking hole communicating with the central hole of the central ring buckle, and a locking bolt is threadedly connected in the locking hole and abuts against the connecting rod at the end.

[0015] A use method of the assembled retaining wall, for ordinary enclosure, the connecting rod is horizontally arranged, a plurality of stand columns are arranged at intervals on the connecting rod, among the three extending arms, two extending arms with the same length are used as supporting legs and supported on the foundation, and the baffle is inserted between the corresponding two extending arms of the adjacent two stand columns; for high fill engineering enclosure, a plurality of connecting rods are vertically inserted in the foundation along the supporting direction, the stand columns are arranged on the connecting rods at a predetermined interval, each connecting rod and the plurality of stand columns arranged thereon form a group of enclosure units, and the adjacent two extending arms of the adjacent two groups of enclosure units are arranged in a stacked manner; for annular pit support, a plurality of connecting rods are annularly and intervally inserted in the foundation along the outer edge of the pit, the stand columns are arranged on the connecting rods at a predetermined interval, each connecting rod and the plurality of stand columns arranged thereon form a group of enclosure units, and the adjacent extending arms of the adjacent two groups of enclosure units are arranged in a stacked manner.

[0016] The application adopting the above technical scheme has the following outstanding features compared with the prior art:

[0017] The assembled retaining wall in the application can select a corresponding connection mode according to the actual enclosure requirement, that is, a horizontal connection structure with the connecting rod arranged horizontally or a stacked connection structure with the connecting rod vertically inserted, so as to adjust the width and height of the enclosure, and at the same time, the assembled retaining wall can be applied to annular pit support, has good adaptability, strong expandability, and is convenient for disassembly and assembly, and convenient for transfer and storage of construction. BRIEF DESCRIPTION OF DRAWINGS

[0018] Fig. 1 is a schematic view of the assembled retaining wall in the embodiment of the present application when used as a general enclosure;

[0019] Fig. 2 is a schematic view of the structure of the stand column in the embodiment of the present application;

[0020] Fig. 3 is another schematic view of the structure of the stand column in the embodiment of the present application;

[0021] Fig. 4 is a top view of the assembled retaining wall in the embodiment of the present application when used as an enclosure for high fill engineering;

[0022] Fig. 5 is a schematic view of the assembled retaining wall in the embodiment of the present application when used as an enclosure for high fill engineering;

[0023] Fig. 6 is a top view of the assembled retaining wall in the embodiment of the present application when used as a support for a ring-shaped deep pit;

[0024] Fig. 7 is a top view of another structure of the assembled retaining wall in the embodiment of the present application when used as a support for a ring-shaped deep pit.

[0025] Reference signs: 1, connecting rod; 2, stand column; 21, central ring buckle; 2201, second side arm; 2202, first side arm; 23, clamping groove; 24, reinforcing bar hole; 25, column groove; 26, through groove; 3, baffle; 4, overlapping column; 5, insertion slot; 6, locking bolt; 7, reinforcing bar. DETAILED DESCRIPTION

[0026] The present application will be further described below in conjunction with specific embodiments, and the purpose is only to better understand the content of the present application, and therefore, the examples do not limit the protection scope of the present application.

[0027] As shown in Figs. 1 to 7, the present embodiment provides an assembled retaining wall, which comprises a connecting rod 1 and a plurality of stand columns 2 arranged on the connecting rod 1, the stand column 2 is provided with a central ring buckle 21 for penetrating the connecting rod 1, the central ring buckle 21 is provided with three protruding arms at intervals in a ring shape, at least two of the three protruding arms have the same length so that the assembled retaining wall can be stably placed on the ground; the protruding arms are provided with clamping grooves 23 along the axial direction of the connecting rod 1, and a baffle 3 is inserted between the two clamping grooves 23 corresponding to the adjacent two stand columns 2; specifically, the cross section of the connecting rod 1 is an equilateral polygon, and the shape of the central hole of the central ring buckle 21 is matched with the cross section of the connecting rod 1; in the present embodiment, the cross section of the connecting rod 1 is an equilateral pentagon; the three protruding arms include a first side arm 2202 and two second side arms 2201, the two second side arms 2201 have the same length, as shown in Fig. 2, the first side arm 2202 is provided with clamping grooves 23 on the front and rear two sides perpendicular to the axial direction of the central ring buckle 21, and the second side arm 2201 is provided with a through groove 26 penetrating the front and rear two sides perpendicular to the axial direction of the central ring buckle 21.

[0028] Further, as shown in Fig. 2, the side wall of the center ring buckle 21 is provided with a locking hole, which is communicated with the center hole of the center ring buckle 21, and a locking bolt 6 is threadedly connected in the locking hole; by rotating the locking bolt 6, the end of the locking bolt 6 can be tightly abutted on the connecting rod 1, thereby realizing the fixation of the position of the column 2 and the connecting rod 1.

[0029] As shown in Fig. 3, a lapping mechanism is arranged on the first side arm 2202 parallel to the two sides of the baffle 3, the lapping mechanism comprises a lapping column 4 hinged on the first side arm 2202 and a plurality of slot 5 for inserting the lapping column 4, the first side arm 2202 is provided with a column groove 25 matched with the lapping column 4, a connecting shaft is arranged in the column groove 25, and the lapping column 4 is rotationally connected on the connecting shaft; wherein, when a plurality of columns 2 are lapped with each other, the lapping column 4 on the column 2 can be inserted into the slot 5 of the adjacent column, thereby completing the supporting and positioning.

[0030] Further, the thickness of the first side arm 2202 is twice the thickness of the second side arm 2201, so that when a plurality of columns 2 are lapped with each other, the second side arms 2201 on the adjacent columns 2 can be stably connected; as shown in Fig. 4 and Fig. 5, the connecting rod 1 is vertically inserted into the foundation, a plurality of connecting rods 1 are arranged at intervals, a plurality of columns 2 are installed on each connecting rod 1, and the second side arms 2201 of the adjacent connecting rods 1 are cross-stacked, for example, two adjacent connecting rods 1 are a group, which are named as connecting rod A and connecting rod B respectively, a plurality of columns 2 are installed on the connecting rod A and the connecting rod B, and the cross-stacked arrangement means that the second side arm 2201 of the lowermost column 2 on the connecting rod B is pressed on the second side arm 2201 of the lowermost column 2 on the connecting rod A, the second side arm 2201 of the second lowermost column 2 on the connecting rod A is pressed on the second side arm 2201 of the lowermost column 2 on the connecting rod B, the second side arm 2201 of the second lowermost column 2 on the connecting rod B is pressed on the second side arm 2201 of the second lowermost column 2 on the connecting rod A, and so on.

[0031] Further, the connecting rod 1 is provided as a hollow rod, which reduces the self-weight of the connecting rod 1 under the condition of meeting the strength requirement, thereby facilitating transportation and carrying.

[0032] Further, the end of the protruding arm away from the center ring buckle 21 is provided with a plug hole 24; a long strip-shaped metal rod can be inserted through the plug hole 24, thereby increasing the connecting strength of the whole retaining wall.

[0033] Further, in the embodiment, the included angle between the first side arm 2202 and the second side arm 2201 and the included angle between the two second side arms 2201 are both 120 degrees.

[0034] The use method of the assembled retaining wall comprises the following three kinds.

[0035] Working condition one: Fig. 1 is the ordinary fence in use, connecting rod 1 is horizontally arranged, a plurality of stand columns 2 are arranged at intervals on the connecting rod 1, two second side arms 2201 are used as legs and supported on the foundation, at this time, the first side arm 2202 is in a vertical state, the baffle 3 is inserted between the two protruding arms corresponding to the adjacent two stand columns 2, and the stand column 2 and the connecting rod 1 are locked and fixed by tightening the locking bolt 6 after the baffle 3 is inserted.

[0036] Working condition two: as shown in Figs. 4 and 5, when the high fill engineering fence is used, a plurality of connecting rods 1 are vertically inserted into the foundation along the supporting direction, the intervals of the plurality of connecting rods 1 are the same, and a plurality of stand columns 2 are installed on the connecting rod 1 according to the preset interval, when the stand column 2 is installed, the first side arm 2202 faces the outer side, and the two second side arms 2201 are located on the side of the sand to be blocked; each connecting rod 1 and the plurality of layers of stand columns 2 installed thereon are a fence unit, the second side arms 2201 of adjacent fence units are arranged in cross-stacking mode, the insertion rib holes 24 on the overlapping second side arms 2201 are coaxially arranged during stacking, the long strip-shaped metal rod is inserted into the coaxial insertion rib holes 24 as the insertion rib 7, and the insertion rib 7 is vertically arranged, and the connection strength of the entire retaining wall is enhanced by arranging the insertion rib 7.

[0037] Then according to the actual soil retaining requirement, when it is necessary to fill the gap between the upper and lower adjacent second side arms 2201, the full-length baffle 3 can be inserted into the through groove 26 coaxially arranged on the second side arm 2201 from top to bottom.

[0038] In this working condition, the adjacent second side arms 2201 on the same layer of stand columns 2 on a plurality of fence units are connected to each other and arranged in a long chain on the ground, and the sand and stones can be blocked by the chain-connected second side arms 2201; the height of the connecting rod 1 and the filling amount of the stand column 2 can be adjusted according to the actual soil retaining requirement, that is, the entire fill retaining wall can be adjusted in height and width according to the actual requirement, has good adaptability, the retaining wall components can be easily disassembled and combined, and the transportation and storage of the parts are facilitated.

[0039] Working condition three: as shown in Figure 6, for annular deep pit support, first, a plurality of connecting rods 1 are inserted into the foundation along the outer edge of the annular deep pit, the connecting rods 1 should be arranged at equal distances, then a plurality of vertical columns 2 are installed on the connecting rods 1 according to the predetermined distance, when the vertical columns 2 are installed, the first side arm 2202 faces the center of the deep pit, the two second side arms 2201 contact the sand soil of the inner wall of the deep pit to be blocked, each connecting rod 1 and a plurality of vertical columns 2 installed thereon form a surrounding unit, the second side arms 2201 of adjacent surrounding units are arranged in cross-stacked manner, and the insertion hole 24 on the second side arm 2201 is coaxially arranged during stacking; a long strip-shaped metal rod is inserted into the insertion hole 24 as a reinforcing bar 7, the reinforcing bar 7 is vertically arranged, the reinforcing bar 7 can connect the adjacent second side arms 2201, and the reinforcing bar 7 can make the entire retaining wall stronger, after the reinforcing bar 7 positions the second side arms 2201, the overlapping column 4 on the first side arm 2202 is turned out, and the end of the overlapping column 4 is inserted into the insertion slot 5 on the first side arm 2202 of the adjacent surrounding unit, the overlapping column 4 plays a supporting and positioning role, then the reinforcing bar 7 is vertically inserted into the through hole coaxially arranged on the first side arm 2202 to further fix the first side arm 2202, through the cooperation of the plurality of connecting rods 1 and the reinforcing bars 7, the annular retaining wall has higher strength.

[0040] In order to further block the gap between the adjacent second side arms 2201, a full-length baffle 3 can be used, which is inserted into the through groove 26 coaxially arranged on the second side arm 2201 from top to bottom, and is inserted into the coaxial clamping groove 23 from top to bottom, the height of the connecting rod 1 and the filling amount of the vertical column 2 are adjusted according to the actual soil retaining demand.

[0041] In this working condition, a plurality of surrounding units are arranged in a circular ring in the deep pit, the second side arms 2201 on the same layer of adjacent surrounding units are connected to each other, and the first side arms 2202 on the same layer are overlapped by the overlapping column 4, and the whole is blocked by the second side wall to the sand soil outside the deep pit.

[0042] The fourth working condition is shown in Fig. 7, which is used for temporarily storing the earth. First, a plurality of connecting rods 1 are inserted into the foundation at equal intervals around the outside of the earth, and then a plurality of columns 2 are installed on the connecting rods 1 at predetermined distances. When the columns 2 are installed, the first side arms 2202 are away from the direction of the earth, and the two second side arms 2201 are in contact with the earth. Each connecting rod 1 and the columns 2 installed thereon form a group of fence units. The second side arms 2201 of adjacent fence units are cross-stacked. When stacked, the insertion rib holes 24 on the second side arms 2201 are coaxially arranged, and the insertion ribs 7 are inserted into the insertion rib holes 24. The insertion ribs 7 can connect the adjacent second side arms 2201, and make the whole fence wall stronger. Through the cooperative action of the plurality of connecting rods 1 and the insertion ribs 7, the strength of the fence wall is higher. In order to block the gap between the upper and lower adjacent second side arms 2201, a full-length baffle 3 is used, which is inserted into the coaxial through grooves 26 on the second side arms 2201 from top to bottom. In this working condition, a plurality of groups of fence units form a circular ring to protect the earth, and achieve the effect of temporarily storing the earth.

[0043] The above description is only the preferred embodiments of the present application, and does not limit the scope of the present application. Any equivalent changes made according to the content of the specification and the drawings are included in the scope of the present application.

Claims

1. A modular retaining wall, characterized by: The utility model relates to a kind of assembled retaining wall, including connecting rod (1) and several posts (2) threaded on connecting rod (1), post (2) is equipped with the center ring buckle (21) for threading connecting rod (1), center ring buckle (21) is spaced apart and is provided with three extension arms in ring, at least two extension arms are same in length;Extension arm is provided with clamping groove (23) on the axis direction of connecting rod (1); Three extension arms include a first side arm (2202) and two second side arms (2201); First side arm (2202) is provided with clamping groove (23) on the front and rear two sides perpendicular to the axis direction of center ring buckle (21), and second side arm (2201) is provided with a through groove (26), and the through groove (26) is arranged through the front and rear two sides perpendicular to the axis direction of center ring buckle (21) on second side arm (2201); Center ring buckle (21) side wall is equipped with locking hole, locking hole is communicated to the center hole of center ring buckle (21), locking bolt (6) is threadedly connected in locking hole, and the end of locking bolt (6) is abutted on connecting rod (1).

2. The assembled retaining wall of claim 1, wherein: Extension arm is provided with plug rib hole (24) on the end away from center ring buckle (21).

3. The assembled retaining wall of claim 2, wherein: Two second side arms (2201) are same in length, and first side arm (2202) is provided with lapping mechanism on the two sides parallel to baffle (3);Lapping mechanism includes lapping column (4) hinged on first side arm (2202) and several insertion slots (5) for inserting lapping column (4).

4. The assembled retaining wall of claim 3, wherein: The included angle between first side arm (2202) and second side arm (2201) and the included angle between two second side arms (2201) are both 120 degrees.

5. The assembled retaining wall of claim 3, wherein: The thickness of first side arm (2202) is twice the thickness of second side arm (2201).

6. The assembled retaining wall of claim 1, wherein: The cross section of connecting rod (1) is equilateral polygon, and the shape of the center hole of center ring buckle (21) is matched with the cross section of connecting rod (1).

7. A method for using the assembled retaining wall according to claim 1, characterized in that: When used as a common fence, the connecting rod (1) is arranged horizontally, and a plurality of posts (2) are arranged on the connecting rod (1) at intervals, among the three extension arms, two extension arms with the same length are used as legs and are supported on the foundation, and a baffle (3) is inserted between the corresponding two extension arms of the adjacent two posts (2); When used as a high fill engineering fence, a plurality of connecting rods (1) are vertically inserted into the foundation along the supporting direction, and the posts (2) are arranged on the connecting rods (1) at predetermined intervals, each connecting rod (1) and the plurality of posts (2) arranged thereon form a fence unit, and the adjacent extension arms of the adjacent two fence units are arranged in a stacked manner; When used for ring-shaped pit support, a plurality of connecting rods (1) are arranged on the foundation at intervals along the outer edge of the pit, and the posts (2) are arranged on the connecting rods (1) at predetermined intervals, each connecting rod (1) and the plurality of posts (2) arranged thereon form a fence unit, and the adjacent extension arms of the adjacent two fence units are arranged in a stacked manner.

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