Fabricated buttress retaining wall and construction method thereof

Abstract

The invention relates to the technical field of building construction, and discloses a fabricated buttress retaining wall and a construction method thereof. The fabricated buttress retaining wall comprises a bottom plate assembly and a wall body assembly. The bottom plate assembly comprises a plurality of bottom plate components which are sequentially arranged in the first direction, and every two adjacent bottom plate components are connected through a bottom plate inserting assembly; the wall body assembly comprises a plurality of wall body components which are sequentially arranged in the first direction, each wall body component is correspondingly arranged on the top face of one bottom plate component, and every two adjacent wall body components are connected through a wall body inserting-connecting assembly; the wall component comprises a plurality of wall sections which are sequentially arranged in the second direction, the second direction is perpendicular to the top face of the bottom plate component, and the wall section at the bottom and the bottom plate component as well as every two adjacent wall sections are connected through wall section inserting assemblies. All the parts of the fabricated buttress retaining wall are connected in an inserted mode through the inserting assemblies, the number of connecting components is small, on-site welding is not needed, construction is convenient and fast, and rapid and efficient construction can be achieved on a construction site.

Description

Technical Field

[0001] The invention relates to the technical field of building construction, and in particular to an assembled buttress retaining wall and a construction method thereof. Background Art

[0002] A retaining wall is a structure that supports the roadbed fill or hillside soil to prevent the fill or soil from deforming and becoming unstable. It is mainly used to prevent the soil from sliding or collapsing due to gravity or other external forces to protect the surrounding environment and the safety of buildings. A buttress retaining wall is also called a buttress retaining wall. This is a thin-walled retaining wall structure made of reinforced concrete. It is generally suitable for fill slopes 6 to 12 meters high and can effectively prevent the slide of fill slopes. It is often used in the approach of overpasses in urban highway projects as a shoulder retaining wall. In addition, buttress retaining walls also have a high application value in areas where there is a lack of stone materials and earthquakes.

[0003] During the construction process, cast-in-place buttress retaining walls require steps such as formwork erection, pouring, and demolding. The construction process is complicated, the consumption of manpower and materials is large, the construction efficiency is low, and the construction quality is difficult to control. Compared with cast-in-place buttress retaining walls, prefabricated retaining walls can be directly transported to the construction site for installation without the need for pouring-related steps. Therefore, the construction process is greatly simplified, the construction period is shortened, and it can be widely used. However, the existing prefabricated buttress retaining walls are mostly connected by welding or by bolts and angle steels, but the welding process has high technical requirements for construction personnel, and welding points are prone to form weak stress points; bolt angle steel connections increase the number of parts, bolt tightening requires manpower, and the connection steps of each component are relatively cumbersome, reducing construction efficiency. Summary of the invention

[0004] In view of this, the present invention provides an assembled buttress retaining wall and a construction method to solve the problems that the existing assembled buttress retaining wall adopts welding connection at the connection parts, which easily forms weak stress parts at the welding points, affects the load-bearing performance of the wall, and increases the number of parts connected by bolts and angle steels, and the connection steps of each component are cumbersome, which reduces the construction efficiency.

[0005] In a first aspect, the present invention provides a prefabricated buttress retaining wall, comprising:

[0006] A bottom plate assembly, the bottom plate assembly comprising a plurality of bottom plate components, the plurality of bottom plate components are arranged in sequence along a first direction, and two adjacent bottom plate components are connected via a bottom plate plug-in assembly;

[0007] A wall assembly, wherein the wall assembly comprises a plurality of wall components, wherein the plurality of wall components are sequentially arranged along the first direction, each of the wall components is correspondingly arranged on a top surface of a bottom plate component, and two adjacent wall components are connected via a wall plug-in assembly;

[0008] The wall component includes a plurality of wall segments arranged in sequence along a second direction, wherein the second direction is perpendicular to the top surface of the bottom plate component, and the wall segment at the bottom is connected to the bottom plate component and two adjacent wall segments through a wall segment plug-in assembly.

[0009] Beneficial Effects

[0010] Adjacent bottom plate components are connected by bottom plate plug-in components, adjacent wall components are connected by wall plug-in components, and each wall segment in the wall component is connected to each other and to the bottom plate component by a wall segment plug-in component. This assembled buttress retaining wall is made by prefabrication technology, and each part is plug-connected by a plug-in component. There are few connecting components, no on-site welding is required, the construction is convenient, and fast and efficient construction can be achieved on the construction site.

[0011] In an optional embodiment, the wall segment includes: a wall portion and a buttress portion, wherein the buttress portion is located on one side of the wall portion and the two are perpendicular to each other.

[0012] Beneficial Effects

[0013] The side of the wall portion where the buttress portion is not arranged is the load-bearing side, and the side of the wall portion where the buttress portion is arranged can provide better support for the wall portion. The wall section of this structure has better pressure-bearing performance and is safer when used.

[0014] In an optional embodiment, the wall segment plug-in assembly includes: a wall portion plug-in structure and / or a buttress portion plug-in structure, the wall portion plug-in structure is arranged at the connection between the wall portion of the bottom wall segment and the bottom plate component and at the connection between the wall portions of two adjacent wall segments; the buttress portion plug-in structure is arranged at the connection between the buttress portion of the bottom wall segment and the bottom plate component and at the connection between the buttress portions of two adjacent wall segments.

[0015] In an optional embodiment, the wall surface plug-in structure comprises: a first plug-in block and a first slot, one of the wall surface of the wall body segment at the bottom and the bottom plate member is provided with the first plug-in block, and the other is provided with the first slot, and one of the wall surfaces of two adjacent wall body segments is provided with the first plug-in block, and the other is provided with the first slot;

[0016] The buttress plug-in structure includes: a second plug-in block and a second slot, one of the buttress portion of the bottom wall section and the bottom plate component is provided with the second plug-in block, and the other is provided with the second slot, and one of the buttress portions of two adjacent wall sections is provided with the second plug-in block, and the other is provided with the second slot.

[0017] Beneficial Effects

[0018] The matching plug-in structure of the plug-in block and the slot can realize the rapid connection of the various parts of the wall section, without the need for additional connecting fasteners or on-site welding, thus improving the construction efficiency.

[0019] In an optional embodiment, the prefabricated buttress retaining wall also includes a grouting connection assembly, which includes: a wall surface grouting connection structure and / or a buttress portion grouting connection structure, the wall surface grouting connection structure is arranged at the wall surface plug-in structure, and the buttress portion grouting connection assembly is arranged at the buttress portion plug-in structure.

[0020] In an optional embodiment, the wall surface grouting connection structure comprises: a first connection piece, a first connection hole and a first grouting pipe, a plurality of the first connection pieces are arranged at intervals along the first direction on the first plug block, a plurality of the first connection holes are arranged at intervals along the first direction on the first slot, the first connection piece is plugged into the first connection hole correspondingly, the first grouting pipe is located on a side of the first slot away from the first plug block, and is connected to the plurality of the first connection holes;

[0021] The buttress grouting connection structure includes: a second connecting piece, a second connecting hole and a second grouting pipe. A plurality of second connecting pieces are arranged on the second plug block at intervals along the first direction. A plurality of second connecting holes are arranged on the second slot at intervals along the first direction. The second connecting piece is correspondingly plugged into the second connecting holes. The second grouting pipe is located on a side of the second slot away from the second plug block and is connected to the plurality of second connecting holes.

[0022] Beneficial Effects

[0023] By grouting into the grouting pipe, and then consolidating the connector inserted into the connecting hole with the slurry, the two structures connected by the wall surface grouting connection structure and the buttress grouting connection structure are solidified into one, thereby enhancing the connection effect of the wall segment plug-in assembly, and the connection strength between the bottom plate component and the wall component and between the various wall segments in the wall component is higher.

[0024] In an optional embodiment, the baseboard plug-in assembly includes: a third plug-in block and a third slot, one of the two adjacent baseboard components is provided with the third plug-in block, and the other one is provided with the third slot, and the third plug-in block is plugged into the third slot.

[0025] In an optional embodiment, the wall plug-in assembly includes: a fourth plug-in block and a fourth slot, one of the two adjacent wall components is provided with the fourth plug-in block, and the other one is provided with the fourth slot, and the fourth plug-in block is plugged into the fourth slot.

[0026] In a second aspect, the present invention further provides a method for constructing an assembled buttress retaining wall, which is applied to the construction of the assembled buttress retaining wall, and comprises the following steps:

[0027] The bottom wall section is connected to the bottom plate member via a wall section plug-in assembly;

[0028] The wall segments are connected sequentially from bottom to top through the wall segment plug-in assembly;

[0029] Two adjacent bottom plate components are connected via a bottom plate plug-in assembly, and two adjacent wall components are connected via a wall plug-in assembly.

[0030] Beneficial Effects

[0031] During construction, the various parts of the buttress retaining wall are spliced ​​together through plug-in components, which is convenient and quick to connect, and can speed up construction and improve construction efficiency.

[0032] In an optional embodiment, the connection of each wall segment is completed in sequence from bottom to top through the wall segment plug-in assembly and the connection of two adjacent bottom plate components is completed through the bottom plate plug-in assembly. The connection of two adjacent wall components through the wall plug-in assembly also includes: connecting the bottom wall segment with the bottom plate component and the two adjacent wall segments through a grouting assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0034] Figure 1 It is a schematic diagram of the assembled buttress retaining wall of the present invention;

[0035] Figure 2 It is a cross-sectional view of the assembled buttress retaining wall of the present invention;

[0036] Figure 3 It is a schematic diagram of the connection between the bottom plate component and the wall component in the assembled buttress retaining wall of the present invention;

[0037] Figure 4 It is a schematic diagram of two adjacent wall sections in the assembled buttress retaining wall of the present invention being connected via a wall plug-in assembly;

[0038] Figure 5 It is a schematic diagram of two adjacent wall segments in the assembled buttress retaining wall of the present invention being connected via a wall segment plug-in assembly;

[0039] Figure 6 It is a schematic diagram of a bottom plate component in an assembled buttress retaining wall of the present invention;

[0040] Figure 7 A top view of a bottom plate component in an assembled buttress retaining wall of the present invention;

[0041] Figure 8 It is a schematic diagram of the first grouting pipe in the assembled buttress retaining wall of the present invention.

[0042] Description of reference numerals:

[0043] 1. Bottom plate components;

[0044] 21. a third plug-in block, 22. a third slot;

[0045] 3. wall component, 31. wall segment, 311. wall portion, 312. buttress portion;

[0046] 41. fourth plug-in block, 42. fourth slot;

[0047] 51. wall portion plug-in structure, 511. first plug-in block, 512. first slot, 52. buttress portion plug-in structure, 521. second plug-in block, 522. second slot;

[0048] 61. Wall grouting connection structure, 611. First connection piece, 612. First connection hole, 613. First grouting pipe, 614. Grouting branch pipe, 62. Buttress grouting connection structure, 621. Second connection piece, 622. Second connection hole, 623. Second grouting pipe. DETAILED DESCRIPTION

[0049] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0050] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0051] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0052] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0053] Combine the following Figures 1 to 8 , describing an embodiment of the present invention.

[0054] According to an embodiment of the present invention, on the one hand, a prefabricated buttress retaining wall is provided. The prefabricated buttress retaining wall comprises: a base plate assembly and a wall assembly. The base plate assembly comprises a plurality of base plate members 1, the plurality of base plate members 1 are sequentially arranged along a first direction, and two adjacent base plate members 1 are connected by a base plate plug-in assembly; the wall assembly comprises a plurality of wall members 3, the plurality of wall members 3 are sequentially arranged along a first direction, each wall member 3 is correspondingly arranged on a top surface of a base plate member 1, and two adjacent wall members 3 are connected by a wall plug-in assembly; the wall member 3 comprises a plurality of wall segments 31 sequentially arranged along a second direction, the second direction is perpendicular to the top surface of the base plate member 1, and the bottom wall segment 31 is connected to the base plate member 1 and two adjacent wall segments 31 by a wall segment 31 plug-in assembly.

[0055] The bottom plate assembly is the foundation part of the assembled buttress retaining wall, which can improve the stability of the assembled buttress retaining wall. The bottom plate assembly includes a plurality of bottom plate members 1, and the plurality of bottom plate members 1 are arranged along a first direction ( Figure 1The wall assembly is the main load-bearing part, which is used to prevent the soil from sliding into the inner side of the assembled buttress retaining wall. The wall assembly includes a plurality of wall components 3, and the plurality of wall components 3 are also connected in sequence along the first direction. The number of wall components 3 is the same as that of the bottom plate components 1, that is, a wall component 3 is arranged on each bottom plate component 1, and the length of the wall component 3 is equal to that of the bottom plate component 1, so as to ensure that the connection between adjacent wall components 3 is tight after splicing. Each wall component 3 also includes a plurality of wall components 3 along the second direction ( Figure 1 The wall components 3 are arranged in a plurality of wall segments 31 in sequence (in the direction indicated by the y-axis in the rectangular coordinate system), that is, the height of the wall component 3 can be changed according to the installation requirements. Specifically, in this embodiment, the base plate assembly includes three base plate components 1 connected in sequence, the wall assembly includes three wall components 3 connected in sequence, and each wall component 3 includes three wall segments 31 connected in sequence. The various parts in the assembled buttress retaining wall are connected by plug-in structures, that is, adjacent base plate components 1 are connected by base plate plug-in components, adjacent wall components 3 are connected by wall plug-in components, and adjacent wall segments 31 and the bottom wall segment 31 are connected to the base plate component 1 by wall segment 31 plug-in components.

[0056] The prefabricated buttress retaining wall adopts the construction technology of prefabrication and assembly. All parts are prefabricated in the factory and can be directly assembled on the construction site. Moreover, since the connection between the parts is through the plug-in structure, this installation method does not require a large number of bolts and other fasteners, nor does it require on-site welding. It is more convenient and faster, and the construction efficiency is higher. In addition, the length and height of the prefabricated buttress retaining wall can be adjusted according to needs, and the scope of application is wider.

[0057] In one embodiment, the wall segment 31 includes: a wall portion 311 and a buttress portion 312 , wherein the buttress portion 312 is located on one side of the wall portion 311 and the two are perpendicular to each other.

[0058] The wall portion 311 and the buttress portion 312 are prefabricated components that are cast in one piece, and the buttress portion 312 is arranged perpendicular to the wall portion 311. In this embodiment, the cross-sectional shape of the wall portion 311 is rectangular, and the cross-sectional shape of the buttress portion 312 is a right-angled trapezoid, so the size of the buttress portion 312 corresponding to the multiple wall segments 31 increases sequentially from top to bottom. The side of the wall portion 311 where the buttress portion 312 is arranged is the inner side of the buttress retaining wall, and the opposite side is the outer side of the buttress retaining wall. Soil will slide down the outer side of the buttress retaining wall, and the wall portion 311 can prevent the soil from entering the inner side of the buttress retaining wall, while the buttress portion 312 can provide support for the wall portion 311 on the inner side of the buttress retaining wall, thereby improving the pressure-bearing capacity of the wall portion 311.

[0059] In other embodiments, the cross-sectional shape of the buttress portion 312 may be other shapes, such as a rectangle, and the number of the buttress portion 312 may be multiple.

[0060] In one embodiment, the wall segment 31 plug-in assembly includes: a wall portion plug-in structure 51 and / or a buttress portion plug-in structure 52, the wall portion plug-in structure 51 is arranged at the connection between the wall portion 311 of the bottom wall segment 31 and the bottom plate component 1 and the connection between the wall portions 311 of two adjacent wall segments 31; the buttress portion plug-in structure 52 is arranged at the connection between the buttress portion 312 of the bottom wall segment 31 and the bottom plate component 1 and the connection between the buttress portions 312 of two adjacent wall segments 31.

[0061] The wall segment 31 includes a wall portion 311 and a buttress portion 312. When the wall segment 31 is connected to an adjacent wall segment 31 or a bottom plate member 1, a wall portion plug-in structure 51 may be provided only at the connection between the bottom wall portion 311 and the bottom plate member 1 and at the connection between two adjacent wall portions 311 for plug-in connection. Alternatively, a buttress portion plug-in structure 52 may be provided only at the connection between the bottom buttress portion 312 and the bottom plate member 1 and at the connection between two adjacent buttress portions 312 for plug-in connection. A wall portion plug-in structure 51 can also be set at the connection between the bottom wall portion 311 and the bottom plate component 1 and the connection between two adjacent wall portions 311. At the same time, a buttress portion plug-in structure 52 can be set at the connection between the bottom buttress portion 312 and the bottom plate component 1 and the connection between two adjacent buttress portions 312 to jointly realize the plug-in connection between the wall segment 31 and the adjacent wall segment 31 or the bottom plate component 1. This connection method is selected in the present embodiment. This connection method has multiple plug-in connection positions, which can limit the wall segment 31 at multiple points. The wall segment 31 is more stable after being connected to the adjacent wall segment 31 or the bottom plate component 1.

[0062] In one embodiment, the wall surface plug-in structure 51 includes: a first plug-in block 511 and a first slot 512, one of the wall surface 311 of the bottom wall segment 31 and the bottom plate member 1 is provided with the first plug-in block 511, and the other is provided with the first slot 512, and one of the wall surfaces 311 of two adjacent wall segments 31 is provided with the first plug-in block 511, and the other is provided with the first slot 512;

[0063] Specifically, in this embodiment, a first slot 512 is provided at the top of each wall portion 311, a first plug block 511 is provided at the bottom, and a first slot 512 is also provided on the bottom plate member 1. The shape of the first plug block 511 matches the first slot 512. In this embodiment, the first plug block 511 is a rectangular block, the length of which is equal to the length of the wall portion 311, and the width is smaller than the wall portion 311. The first slot 512 is a rectangular groove, the length of the first slot 512 is equal to the length of the wall portion 311 and the bottom plate member 1, and the width is adapted to the first plug block 511. After the first plug block 511 is plugged into the first slot 512, each wall portion 311 and the bottom wall portion 311 are mutually restricted and connected with the bottom plate member 1.

[0064] In other embodiments, the shapes of the first inserting block 511 and the first slot 512 may also be various shapes such as matching dovetail blocks and dovetail grooves, arc blocks and arc grooves.

[0065] In another embodiment, a first plug block 511 may also be provided on the bottom plate component 1 , and correspondingly, a first plug block 511 is provided on the top of each wall portion 311 , and a first slot 512 is provided on the bottom.

[0066] In one embodiment, the buttress portion plug-in structure 52 includes: a second plug block 521 and a second slot 522, one of the buttress portion 312 of the bottom wall section 31 and the bottom plate member 1 is provided with a second plug block 521, and the other is provided with a second slot 522, and one of the buttress portions 312 of two adjacent wall sections 31 is provided with a second plug block 521, and the other is provided with a second slot 522.

[0067] Specifically, in this embodiment, a second slot 522 is provided at the top of each buttress portion 312, a second plug block 521 is provided at the bottom, and a second slot 522 is also provided on the bottom plate member 1. The shape of the second plug block 521 matches the second slot 522. In this embodiment, the second plug block 521 is a rectangular block, the length of which is equal to the length of the buttress portion 312, and the width is smaller than the buttress portion 312. The second slot 522 is a rectangular groove, the length of the second slot 522 is equal to the width of the buttress portion 312, and the width of the second slot 522 matches the second plug block 521. The second plug block 521 and the second slot 522 can be connected along the third direction ( Figure 1 The buttresses 312 are provided with a plurality of second inserting blocks 521 and second slots 522 at intervals, and since the size of the buttresses 312 increases gradually from top to bottom, the number of second inserting blocks 521 and second slots 522 on the buttresses 312 can also increase in sequence from top to bottom. After the second inserting blocks 521 are plugged into the second slots 522, each buttress 312 and the bottom buttress 312 are mutually restricted and connected with the bottom plate member 1.

[0068] In other embodiments, the shapes of the second inserting block 521 and the second slot 522 may also be other shapes such as matching arc-shaped blocks and arc-shaped slots.

[0069] In another embodiment, a second inserting block 521 may also be provided on the bottom plate member 1 , and correspondingly, a second inserting block 521 is provided on the top of each buttress portion 312 , and a second slot 522 is provided on the bottom.

[0070] The wall portion plug-in structure 51 and the buttress portion plug-in structure 52 are both structures in which plug-in blocks and slots are matched and plug-in, and the plug-in blocks and slots are both formed on the wall section 31 and the base plate component 1, and are prefabricated with the wall section 31 and the base plate component 1. No additional fasteners are required during on-site construction, the structure is simpler, and the construction steps are fewer.

[0071] In one embodiment, the prefabricated buttress retaining wall also includes a grouting connection assembly, which includes: a wall surface grouting connection structure 61 and / or a buttress portion grouting connection structure 62, the wall surface grouting connection structure 61 is arranged at the wall surface plug-in structure 51, and the buttress portion 312 grouting connection assembly is arranged at the buttress portion plug-in structure 52.

[0072] Since the present embodiment is provided with both the wall portion plug-in structure 51 and the buttress portion plug-in structure 52 , a wall portion grouting connection structure 61 and a buttress portion grouting connection structure 62 are provided accordingly.

[0073] Furthermore, the wall grouting connection structure 61 includes: a first connecting member 611, a first connecting hole 612 and a first grouting pipe 613. A plurality of first connecting members 611 are arranged on the first plug block 511 at intervals along the first direction, and a plurality of first connecting holes 612 are arranged on the first slot 512 at intervals along the first direction. The first connecting member 611 is correspondingly plugged into the first connecting holes 612, and the first grouting pipe 613 is located on the side of the first slot 512 away from the first plug block 511, and is connected to the plurality of first connecting holes 612.

[0074] Specifically, the first connecting member 611 is preferably a steel bar, and a plurality of steel bars are arranged at intervals on the first plug block 511. The diameter of the first connecting hole 612 should be larger than the diameter of the first connecting member 611, and it is generally appropriate that the diameter of the first connecting hole 612 is 2-3 times the diameter of the first connecting member 611. The first grouting pipe 613 is a pipe body with one end open and the other end closed, and slurry can be injected into the first grouting pipe 613 from the open end. A plurality of grouting branches 614 are also arranged on the first grouting pipe 613, and the number and position of the grouting branches 614 correspond to the first connecting hole 612. When the first plug block 511 and the first slot 512 are plugged in, the first connecting member 611 can be inserted into the first connecting hole 612, and then grouting is injected into the first grouting pipe 613, and the slurry can enter each grouting branch 614 from the grouting pipe and then enter each first connecting hole 612, and when the slurry solidifies, it can be consolidated into one with the first connecting member 611.

[0075] After the wall grouting connection structure 61 is set, the first plug block 511 and the first slot 512 can be consolidated into one through slurry, so that the two adjacent wall surfaces 311 and the bottom wall surface 311 are more tightly and firmly connected to the base plate component 1, and the buttress retaining wall is more stable.

[0076] Furthermore, the buttress grouting connection structure 62 includes: a second connecting member 621, a second connecting hole 622 and a second grouting pipe 623, a plurality of second connecting members 621 are arranged on the second plug block 521 at intervals along the first direction, a plurality of second connecting holes 622 are arranged on the second slot 522 at intervals along the first direction, the second connecting member 621 is correspondingly plugged into the second connecting holes 622, and the second grouting pipe 623 is located on the side of the second slot 522 away from the second plug block 521, and is connected to the plurality of second connecting holes 622.

[0077] The buttress grouting connection structure 62 is similar in structure to the wall surface grouting connection structure 61, except that it is arranged at the buttress plug-in structure 52, and since the buttress plug-in structure 52 is provided with multiple groups, the buttress grouting connection structure 62 is also provided with multiple groups. Specifically, the second connecting member 621 is also preferably a steel bar, that is, multiple steel bars are arranged at intervals on the second plug block 521, and the diameter of the second connecting hole 622 is larger than the diameter of the second connecting member 621. Generally, the diameter of the second connecting hole 622 is preferably 2-3 times the diameter of the second connecting member 621. The second grouting pipe 623 is a pipe body with one end open and the other end closed, and slurry can be injected into the second grouting pipe 623 from the open end. A plurality of grouting branches 614 are also provided on the second grouting pipe 623, and the number and position of the grouting branches 614 correspond to the second connecting hole 622. The length of the second grouting pipe 623 is greater than that of the second grouting pipe 623, so the number of grouting branches 614 on the first grouting pipe 613 is also greater than that of the second grouting branches 614 on the second grouting pipe 623. When the second plug block 521 and the second slot 522 are plugged in, the second connector 621 can be inserted into the second connection hole 622, and then grouting is injected into the second grouting pipe 623. The grout can enter each grouting branch 614 from the grouting pipe and then enter each second connection hole 622. When the grout solidifies, it can be consolidated with the second connector 621 as a whole.

[0078] After the buttress grouting connection structure 62 is set, the second plug block 521 and the second slot 522 can be consolidated into one through the grout, so that the two adjacent buttresses 312 and the buttress 312 at the bottom are more tightly and firmly connected to the base plate component 1, and the buttress retaining wall is more stable.

[0079] The grouting connection assembly connects the bottom wall section 31 with the bottom plate member 1 and two adjacent wall sections 31 as a whole, so that the overall pressure bearing capacity of the buttress retaining wall is stronger and more stable support can be provided when facing soil sliding.

[0080] In one embodiment, the baseboard plug-in assembly includes: a third plug-in block 21 and a third slot 22. One of two adjacent baseboard components 1 is provided with the third plug-in block 21, and the other is provided with the third slot 22. The third plug-in block 21 and the third slot 22 are plugged.

[0081] Specifically, a third plug block 21 is provided on one side of each bottom plate member 1, and a third slot 22 is provided on the other side. When two adjacent bottom plate members 1 are connected, the third plug block 21 on one bottom plate member 1 is plugged into the third slot 22 on the other bottom plate member 1. The length of the third plug block 21 is equal to the length of the bottom plate member 1, and the corresponding length of the third slot 22 is also equal to the length of the bottom plate member 1, that is, the third slot 22 is a through slot with openings at both ends.

[0082] In other embodiments, the length of the third inserting block 21 and the third slot 22 may also be smaller than the length of the bottom plate component 1 .

[0083] In one embodiment, the wall plug-in assembly includes: a fourth plug-in block 41 and a fourth slot 42. One of two adjacent wall components 3 is provided with the fourth plug-in block 41, and the other is provided with the fourth slot 42. The fourth plug-in block 41 and the fourth slot 42 are plugged in.

[0084] Specifically, each wall component 3 includes multiple wall segments 31, so a fourth plug block 41 is set on each wall segment 31 of one of the two adjacent wall components 3, and a fourth slot 42 is set on each wall segment 31 of the other wall component 3, and the fourth plug blocks 41 on the two adjacent wall segments 31 along the first direction are correspondingly plugged into the fourth slots 42.

[0085] In other embodiments, in one of the two adjacent wall components 3, the fourth plug block 41 may be provided in part of the wall segments 31, and the fourth slot 42 may be provided in the rest, and in the other wall component 3, the fourth slot 42 may be provided in part, and the fourth plug block 41 may be provided in the rest. For example, when the wall component 3 includes three wall segments 31, the fourth plug block 41 may be provided in the middle wall segment 31 of one of the wall components 3, and the fourth slot 42 may be provided in the other two wall segments 31, and the fourth plug block 41 may be provided in the middle wall segment 31 of the other wall component 3, and the fourth slot 42 may be provided in the other two wall segments 31.

[0086] By providing the bottom plate plug-in assembly and the wall plug-in assembly, adjacent bottom plate components 1 and adjacent wall components 3 can be plugged in and connected conveniently, and the size of the buttress retaining wall can be adjusted as needed.

[0087] According to an embodiment of the present invention, on the other hand, a method for constructing a prefabricated buttress retaining wall is provided. This method can be applied to the construction of the prefabricated buttress retaining wall in the above embodiment, and the prefabricated buttress retaining wall will not be described in detail.

[0088] The construction method of the assembled buttress retaining wall includes the following steps:

[0089] (1) The bottom wall section 31 is connected to the bottom plate member 1 through the wall section 31 plug-in assembly;

[0090] Specifically, in this embodiment, the wall portion 311 of the bottom wall segment 31 is connected to the bottom plate member 1 through the wall portion plug-in structure 51, that is, the first plug-in block 511 on the wall portion 311 of the bottom wall segment 31 is plugged into the first slot 512 on the bottom plate member 1. The buttress portion 312 of the bottom wall segment 31 is connected to the bottom plate member 1 through the buttress portion plug-in structure 52, that is, the second plug-in block 521 on the buttress portion 312 of the bottom wall segment 31 is plugged into the second slot 522 on the bottom plate member 1.

[0091] (2) Connecting the wall segments 31 in sequence from bottom to top is completed through the wall segment 31 plug-in assembly;

[0092] Specifically, in this embodiment, each wall component 3 includes three wall segments 31. The wall portions 311 of two adjacent wall segments 31 are plugged in through the wall portion plug-in structure 51, and the buttress portions 312 are plugged in through the buttress portion plug-in structure 52. After the installation of each wall segment 31 is completed, a retaining wall unit can be formed.

[0093] In one embodiment, the method further includes connecting the bottom wall segment 31 with the bottom plate member 1 and two adjacent wall segments 31 by a grouting assembly.

[0094] Specifically, after the connection of each wall segment 31 is completed, the wall portion grouting connection structure 61 in the grouting assembly injects grout into the first grouting pipe 613, and the grout enters the first connection hole 612 and consolidates with the first connection piece 611, and finally the first plug block 511 is fastened and connected with the first slot 512. Similarly, the buttress portion grouting connection structure 62 in the grouting assembly injects grout into the second grouting pipe 623, and the grout enters the second connection hole 622 and consolidates with the second connection piece 621, and finally the second plug block 521 is fastened and connected with the second slot 522.

[0095] The bottom wall section 31 and the bottom plate member 1 as well as the two adjacent wall sections 31 are tightly combined into a whole by grouting, so that the connection is more stable and reliable, and the pressure bearing performance and stability of the retaining wall unit are better.

[0096] (3) Two adjacent bottom plate components 1 are connected via a bottom plate plug-in assembly, and two adjacent wall components 3 are connected via a wall plug-in assembly.

[0097] The retaining wall units are assembled in the above steps, and then the retaining wall units are connected in sequence to form the final buttress retaining wall. The specific connection method is that the third plug block 21 provided on one of the two adjacent bottom plate components 1 is plugged into the third slot 22 provided on the other, and the fourth plug block 41 provided on one of the two adjacent wall components 3 is plugged into the fourth slot 42 provided on the other.

[0098] In this construction method, each part of the buttress retaining wall is prefabricated, and there is no need to pour concrete on site, which greatly improves the efficiency of on-site construction. In addition, during the installation of the buttress retaining wall, each part is connected through various plug-in structures, which is convenient and fast.

[0099] Although the embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations are all within the scope defined by the appended claims.

Claims

1. An assembled buttress retaining wall, characterized in that: include: A base plate assembly, the base plate assembly comprising a plurality of base plate components (1), the plurality of base plate components (1) being arranged in sequence along a first direction, and two adjacent base plate components (1) being connected via a base plate plug-in assembly; A wall assembly, the wall assembly comprising a plurality of wall components (3), the plurality of wall components (3) being arranged in sequence along the first direction, each of the wall components (3) being arranged correspondingly on the top surface of a bottom plate component (1), and two adjacent wall components (3) being connected via a wall plug-in assembly; The wall component (3) comprises a plurality of wall segments (31) arranged in sequence along a second direction, wherein the second direction is perpendicular to the top surface of the base plate component (1), and the wall segment (31) at the bottom is connected to the base plate component (1) and two adjacent wall segments (31) via a wall segment (31) plug-in assembly.

2. The assembled buttress retaining wall according to claim 1, characterized in that: The wall segment (31) comprises a wall portion (311) and a buttress portion (312), wherein the buttress portion (312) is located on one side of the wall portion (311) and the two are perpendicular to each other.

3. The assembled buttress retaining wall according to claim 2, characterized in that: The wall segment (31) plug-in assembly comprises: a wall portion plug-in structure (51) and / or a buttress portion plug-in structure (52); the wall portion plug-in structure (51) is arranged at the connection between the wall portion (311) of the bottom wall segment (31) and the bottom plate component (1) and at the connection between the wall portions (311) of two adjacent wall segments (31); the buttress portion plug-in structure (52) is arranged at the connection between the buttress portion (312) of the bottom wall segment (31) and the bottom plate component (1) and at the connection between the buttress portions (312) of two adjacent wall segments (31).

4. The assembled buttress retaining wall according to claim 3, characterized in that: The wall surface plug-in structure (51) comprises: a first plug-in block (511) and a first slot (512); one of the wall surface (311) of the wall body section (31) at the bottom and the bottom plate member (1) is provided with the first plug-in block (511), and the other is provided with the first slot (512); and one of the wall surfaces (311) of two adjacent wall body sections (31) is provided with the first plug-in block (511), and the other is provided with the first slot (512); The buttress portion plug-in structure (52) comprises: a second plug-in block (521) and a second slot (522); one of the buttress portion (312) of the wall section (31) at the bottom and the base plate component (1) is provided with the second plug-in block (521), and the other is provided with the second slot (522); and one of the buttress portions (312) of two adjacent wall sections (31) is provided with the second plug-in block (521), and the other is provided with the second slot (522).

5. The assembled buttress retaining wall according to claim 4, characterized in that: It also includes a grouting connection assembly, which includes: a wall surface grouting connection structure (61) and / or a buttress grouting connection structure (62), wherein the wall surface grouting connection structure (61) is arranged at the wall surface plug-in structure (51), and the buttress (312) grouting connection assembly is arranged at the buttress plug-in structure (52).

6. The assembled buttress retaining wall according to claim 5, characterized in that: The wall surface grouting connection structure (61) comprises: a first connection piece (611), a first connection hole (612) and a first grouting pipe (613); a plurality of the first connection pieces (611) are arranged at intervals along the first direction on the first plug block (511); a plurality of the first connection holes (612) are arranged at intervals along the first direction on the first slot (512); the first connection piece (611) is correspondingly plugged into the first connection hole (612); the first grouting pipe (613) is located on a side of the first slot (512) away from the first plug block (511) and is in communication with the plurality of the first connection holes (612); The buttress grouting connection structure (62) comprises: a second connecting piece (621), a second connecting hole (622) and a second grouting pipe (623); a plurality of second connecting pieces (621) are arranged on the second plug block (521) at intervals along the first direction; a plurality of second connecting holes (622) are arranged on the second slot (522) at intervals along the first direction; the second connecting piece (621) is correspondingly plugged into the second connecting hole (622); the second grouting pipe (623) is located on a side of the second slot (522) away from the second plug block (521) and is connected to the plurality of second connecting holes (622).

7. The assembled buttress retaining wall according to claim 2, characterized in that: The baseboard plug-in assembly comprises: a third plug-in block (21) and a third slot (22); one of the two adjacent baseboard components (1) is provided with the third plug-in block (21), and the other of the two adjacent baseboard components (1) is provided with the third slot (22); the third plug-in block (21) and the third slot (22) are plugged into each other.

8. The assembled buttress retaining wall according to claim 2, characterized in that: The wall plug-in assembly comprises: a fourth plug-in block (41) and a fourth slot (42); one of the two adjacent wall components (3) is provided with the fourth plug-in block (41), and the other of the two adjacent wall components (3) is provided with the fourth slot (42); the fourth plug-in block (41) and the fourth slot (42) are plugged into each other.

9. A method for constructing an assembled buttress retaining wall, applied to the construction of an assembled buttress retaining wall according to any one of claims 1 to 8, characterized in that: The following steps are involved: The bottom wall section (31) is connected to the bottom plate component (1) via a wall section (31) plug-in assembly; The connection of the wall segments (31) is completed in sequence from bottom to top through the wall segment (31) plug-in assembly; Two adjacent bottom plate components (1) are connected via a bottom plate plug-in assembly, and two adjacent wall components (3) are connected via a wall plug-in assembly.

10. The method for constructing an assembled buttress retaining wall according to claim 9, characterized in that: The connection of each wall segment (31) is completed in sequence from bottom to top through the wall segment (31) plug-in assembly and the connection of two adjacent bottom plate components (1) through the bottom plate plug-in assembly. The connection of two adjacent wall components (3) through the wall plug-in assembly also includes: connecting the bottom wall segment (31) with the bottom plate component (1) and the two adjacent wall segments (31) through a grouting assembly.

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