Prestressed masonry fabricated retaining wall and construction method thereof

Abstract

The invention discloses a prestressed masonry assembly type retaining wall which comprises a foundation and an assembled vertical wall arranged on the upper portion of the foundation, the vertical wall is composed of a first precast block, a second precast block, a third precast block, a top rectangular coping beam and a prestressed anchor rod, and the first precast block, the second precast block and the third precast block are all located above the foundation; vertical circular anchors are arranged on the upper surfaces of the first precast block and the second precast block. The structural strength, the drainage effect and the economic benefit of the retaining wall are comprehensively considered, the positions and installation of the crack meter and the settlement meter are considered, the assembly quality of the assembly type retaining wall is further guaranteed, the adopted wall body is provided with the through preformed holes reserved in the horizontal position of the wall body, and the construction efficiency is improved. The anchor rods penetrate through the horizontal preformed holes to conduct horizontal prestress reinforcement on the whole wall body, the assembly type installation quality of the wall body is more stable, and the steel strands with the anchorage devices are adopted and can form a firmer whole with the cavity where concrete is poured.

Description

Technical Field

[0001] The invention relates to the technical field of highway slope support, in particular to a prestressed masonry assembled retaining wall and a construction method thereof. Background Art

[0002] Retaining wall is a kind of structure used to support roadbed fill or hillside soil and prevent fill or soil from deforming and becoming unstable. It is a widely used retaining structure in civil engineering. With the country's vigorous development of green and standardized construction, the development of prefabricated retaining walls has been further promoted. In the existing technology, retaining walls generally use reinforced concrete cast-in-place retaining walls, which are cast in sections according to the process of tying steel bars, supporting formwork, and pouring. This construction method is often limited by the terrain and difficult to construct, with a long construction period and low efficiency. Due to on-site pouring, a large amount of construction waste is generated, which pollutes the environment and leads to high construction costs.

[0003] In recent years, with the rise and development of prefabricated buildings, prefabricated retaining walls have also been proposed. For example, a prefabricated retaining wall disclosed in the Chinese invention patent application document with the authorization announcement number CN 112252360 A includes a foundation, prefabricated blocks of different specifications and multiple structural columns; the front and rear surfaces of the prefabricated blocks are inclined to one side, with protrusions on the top and grooves on the bottom, and prefabricated blocks of different specifications are staggered and assembled layer by layer to form a wall inclined to one side. The prefabricated retaining wall does not have drainage holes in the blocks, and its stability is not reliable in the rainy areas in the south; and most prefabricated retaining walls do not consider the detection of cracks and settlement, nor do they take measures to suppress the cracks caused by splicing. They are simply spliced ​​without specific monitoring means and methods, which will have great safety hazards. Summary of the invention

[0004] The object of the present invention is to provide a prestressed masonry assembled retaining wall and a construction method thereof, so as to solve the problem raised in the above-mentioned background technology that the stability of the retaining wall in the rainy southern regions is unreliable; and most of the assembled retaining walls do not consider the detection of cracks and settlements, nor do they take measures to suppress the cracks caused by splicing. They are simply spliced ​​without specific monitoring means and methods, which will have great safety hazards.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a prestressed masonry assembled retaining wall, comprising a foundation and an assembled vertical wall arranged on the upper part of the foundation, the vertical wall being composed of prefabricated block one, prefabricated block two, prefabricated block three, a top rectangular pressure beam and a prestressed anchor rod, the prefabricated block one, prefabricated block two and prefabricated block three are all located above the foundation, the upper surfaces of the prefabricated block one and prefabricated block two are both provided with vertical circular anchors, the lower surfaces of the prefabricated block one and prefabricated block two are both provided with connecting grooves, the side surfaces of the prefabricated block one and prefabricated block two are both provided with first reserved grooves, the upper surface of the prefabricated block one is also fixed with an elliptical anchor body, the side surface of the prefabricated block one is fixed with a transverse tenon, the prefabricated block two and prefabricated block three are both provided with vertical cavities, the side surface of the prefabricated block two is provided with a second reserved groove, the upper surface of the prefabricated block three is installed with connecting convex strips, and the lower surface of the prefabricated block three is provided with tenons.

[0006] Preferably, a top tenon is fixed on the upper surface of the foundation, and a settlement meter mounting hole is opened on the lower surface of the foundation.

[0007] Preferably, the prefabricated block 1 and the prefabricated block 3 are both provided with a first reserved hole, and the prefabricated block 1, the prefabricated block 2 and the prefabricated block 3 are provided with a second reserved hole.

[0008] Preferably, a third reserved hole is provided on the prefabricated block one, the prefabricated block two and the prefabricated block three, a first drainage hole is provided on one side surface of the prefabricated block two and the prefabricated block three, and a second drainage hole is provided on a side of the prefabricated block two and the prefabricated block three away from the first drainage hole.

[0009] Preferably, the prefabricated block one and the prefabricated block two are spliced ​​and connected via a transverse tenon and a second reserved groove, and the lower surfaces of the prefabricated block one and the prefabricated block two are spliced ​​and connected to the upper surface of the prefabricated block three via a connecting groove and a connecting convex strip.

[0010] Preferably, the lower surface of the prefabricated block three is spliced ​​and connected to the upper surfaces of the prefabricated block one and the prefabricated block two respectively through tenons and vertical circular anchors.

[0011] Preferably, the vertical cavities on the prefabricated block 2 and the prefabricated block 3 are located at the same longitudinal straight line position.

[0012] Preferably, the first drainage hole and the second drainage hole are located on the same straight line and aligned with each other.

[0013] Preferably, the third reserved holes on the prefabricated block 1 and the prefabricated block 2 are aligned with each other, and the third reserved holes are connected to the vertical cavity.

[0014] Preferably, the construction method comprises the following steps:

[0015] S1, first excavate to the bottom elevation of the roadbed, then locate the foundation (4) on the foundation and open a settlement meter installation hole (68);

[0016] S2, then install the foundation formwork, tie the retaining wall foundation steel bars, consider whether the vertical cavity (20) is poured with concrete, pre-embed the vertical steel bars of the vertical cavity (20), and perform pouring construction of the retaining wall foundation;

[0017] S3, using a membrane interface agent to apply on the surface of the vertical circular anchor (2), the inner wall of the connecting groove (13) and the surface of the top tenon (5), and splicing the blocks coated with the membrane interface agent to form a wall body;

[0018] S4, simultaneously filling the vertical cavity (20) of the retaining wall with large-grained aggregates. If the vertical cavity (20) needs to be cast, after the whole is spliced, considering the integrity of the cavity structural column, it is preferred to use a layer of concrete;

[0019] S5, embedding a crack meter in the first reserved groove (15) on the wall surface to detect cracks, and performing real-time monitoring through a data acquisition instrument program;

[0020] S6, the blocks in the horizontal single layer of the vertical wall are locked by means of horizontal prestressed members penetrating the horizontal reserved holes, and the horizontal prestressed anchor rods (50) are tensioned for anchoring, so as to achieve the effect of tightening the anchoring;

[0021] S7. Carry out concrete curing.

[0022] The prestressed masonry assembled retaining wall and the construction method thereof of the present invention have the following beneficial effects:

[0023] 1. The present invention comprehensively considers the strength of the retaining wall structure, drainage effect and economic benefits, and further ensures the assembly quality of the assembled retaining wall by considering the position and installation of the crack meter and the settlement meter. The wall body is reinforced with horizontal prestressing through the reserved holes reserved at the horizontal position of the wall body, and the anchor rods pass through the horizontal reserved holes to strengthen the entire wall body, so that the assembled installation quality is more stable, and the steel strand with anchors is used, which can form a more solid whole with the cavity of poured concrete;

[0024] 2. The prefabricated blocks of the present invention are of few types, which is conducive to the batch production of prefabricated parts in factories and reduces the cost of opening molds. On-site hoisting can save a lot of manpower and construction costs, and the construction quality is high and the speed is fast. There is no need to pile up a large amount of materials and construction machinery at the construction site, the construction site requirements are small, and it is more environmentally friendly. The cavity of the retaining wall is fully utilized. On the one hand, a drainage system can be established by filling coarse aggregate, so that the water behind the wall can be discharged from the inside of the retaining wall through the open surface of the block. The cavity is consolidated by pouring concrete and prestressed anchor cables to increase the durability of the anchor cables and at the same time increase the integrity of the retaining wall, so that the overall force of the retaining wall is more reasonable. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0026] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present invention;

[0027] Figure 2 It is a side view structural schematic diagram of the present invention;

[0028] Figure 3 It is a front view structural schematic diagram of the present invention;

[0029] Figure 4 It is a schematic diagram of the back structure of the present invention;

[0030] Figure 5 It is a schematic diagram of the top view structure of the present invention;

[0031] Figure 6 It is a schematic diagram of the basic three-dimensional structure of the present invention;

[0032] Figure 7 This is a structural schematic diagram of a prefabricated block of the present invention;

[0033] Figure 8 This is a structural schematic diagram of the second prefabricated block of the present invention;

[0034] Fig. 9 This is a schematic diagram of the third structure of the prefabricated block of the present invention;

[0035] Fig.10 It is a schematic diagram of the prestressed anchor rod structure of the present invention.

[0036]

Main component symbol description

[0037] 1. First reserved hole; 2. Vertical circular anchor; 3. Horizontal tenon; 4. Foundation; 5. Top tenon; 60. First drainage hole; 66. Second drainage hole; 68. Settlement meter installation hole; 8. Prefabricated block one; 9. Prefabricated block two; 10. Prefabricated block three; 11. Second reserved hole; 12. Third reserved hole; 13. Connecting groove; 15. First reserved groove; 16. Elliptical anchor body; 20. Vertical cavity; 30. Second reserved groove; 38. Connecting convex strip; 40. Tenon; 50. Prestressed anchor rod. DETAILED DESCRIPTION

[0038] The prestressed masonry assembled retaining wall and the construction method thereof of the present invention are further described in detail below in conjunction with the accompanying drawings and embodiments of the present invention.

[0039] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0040] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0041] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein, for example. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0042] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0043] See also Figure 1-6The present invention provides a technical solution: a prestressed masonry assembled retaining wall, comprising a foundation 4 and an assembled vertical wall arranged on the upper part of the foundation 4, the vertical wall is composed of a prefabricated block 1 8, a prefabricated block 2 9, a prefabricated block 3 10, a top rectangular pressure beam and a prestressed anchor rod 50, the prefabricated block 1 8, the prefabricated block 2 9 and the prefabricated block 3 10 are all located above the foundation 4, the upper surfaces of the prefabricated block 1 8 and the prefabricated block 2 9 are both provided with vertical circular anchors 2, and the lower surfaces of the prefabricated block 1 8 and the prefabricated block 2 9 are provided with vertical circular anchors 2. The surfaces are provided with connecting grooves 13, the side surfaces of prefabricated block 1 8 and prefabricated block 2 9 are provided with first reserved grooves 15, an elliptical anchor body 16 is also fixed to the upper surface of prefabricated block 1 8, a transverse tenon 3 is fixed to the side surface of prefabricated block 1 8, vertical cavities 20 are provided on prefabricated block 2 9 and prefabricated block 3 10, a second reserved groove 30 is provided on the side surface of prefabricated block 2 9, a connecting convex strip 38 is installed on the upper surface of prefabricated block 3 10, and a tenon 40 is provided on the lower surface of prefabricated block 3 10.

[0044] In this example, a top tenon 5 is fixed on the upper surface of the foundation 4 , and a settlement meter mounting hole 68 is provided on the lower surface of the foundation 4 , so that the foundation 4 can be easily assembled with other related components through the top tenon 5 .

[0045] In this example, a first reserved hole 1 is provided on the prefabricated block 1 8 and the prefabricated block 3 10 , and a second reserved hole 11 is provided between the prefabricated block 1 8 , the prefabricated block 2 9 and the prefabricated block 3 10 , which is conducive to connecting the relevant components with the prefabricated block 1 8 and the prefabricated block 3 10 through the first reserved hole 1 .

[0046] In this example, the prefabricated block 1 8 , the prefabricated block 2 9 and the prefabricated block 3 10 are all provided with a third reserved hole 12 , the surface of one side of the prefabricated block 2 9 and the prefabricated block 3 10 is provided with a first drainage hole 60 , and the surface of the prefabricated block 2 9 and the prefabricated block 3 10 away from the first drainage hole 60 is provided with a second drainage hole 66 , the first drainage hole 60 and the second drainage hole 66 are located in the same straight line and aligned with each other, so as to facilitate the discharge of excess moisture and avoid affecting the stability of the wall structure.

[0047] In this example, the prefabricated block 1 8 and the prefabricated block 2 9 are spliced ​​and connected by the transverse tenon 3 and the second reserved groove 30, and the lower surfaces of the prefabricated block 1 8 and the prefabricated block 2 9 are spliced ​​and connected with the upper surface of the prefabricated block 3 10 by the connecting groove 13 and the connecting convex strip 38, which is conducive to the rapid splicing of the prefabricated block 1 8, the prefabricated block 2 9 and the prefabricated block 3 10 to form a wall.

[0048] In this example, the lower surface of prefabricated block three 10 is respectively connected to the upper surfaces of prefabricated block one 8 and prefabricated block two 9 through tenons 40 and vertical circular anchors 2, which is conducive to the assembly and installation of prefabricated block three 10 of the second layer with prefabricated block one 8 and prefabricated block two 9 of the third layer.

[0049] In this example, the vertical cavities 20 on the prefabricated block 2 9 and the prefabricated block 3 10 are located at the same longitudinal straight line position, which is conducive to filling and pouring, and improves the stability of the wall structure.

[0050] In this example, the third reserved holes 12 on the prefabricated block 1 8 and the prefabricated block 2 9 are aligned with each other, and the third reserved holes 12 are interconnected with the vertical cavity 20 to facilitate timely drainage.

[0051] The construction method includes the following steps:

[0052] S1, first excavate to the bottom elevation of the roadbed, then locate the foundation 4 on the foundation and open the settlement meter installation hole 68;

[0053] S2, then install the foundation formwork, tie the retaining wall foundation steel bars, consider whether the vertical cavity 20 is poured with concrete, pre-embed the vertical steel bars of the vertical cavity 20, and perform the pouring construction of the retaining wall foundation;

[0054] S3, using a membrane interface agent to apply on the surface of the vertical circular anchor 2, the inner wall of the connecting groove 13 and the surface of the top tenon 5, and splicing the blocks coated with the membrane interface agent to form a wall body;

[0055] S4, simultaneously filling the vertical cavity 20 of the retaining wall with large aggregate particles. If the vertical cavity 20 needs to be poured, after the whole is spliced, considering the integrity of the cavity structural column, it is preferred to place a layer of concrete between them;

[0056] S5. A crack meter is embedded in 15 places of the first reserved groove on the wall surface to detect cracks, and real-time monitoring is performed through a data acquisition instrument program;

[0057] S6. The blocks in the horizontal single layer of the vertical wall are locked by horizontal prestressed members penetrating the horizontal reserved holes, and the horizontal prestressed anchor rods 50 are tensioned to anchor them, so as to achieve the effect of tightening the anchoring;

[0058] S7. Carry out concrete curing.

[0059] Working principle: According to Figure 1-Figure 10 As shown, the positioning is confirmed by the foundation, the cast-in-place foundation 4 and the settlement meter installation hole 68, and the buried settlement meter is connected to the data acquisition instrument for real-time monitoring; then it is determined whether the filling material of the vertical cavity 20 is concrete or coarse aggregate, preferably with a layer of concrete, and then the position of the filling concrete is located, and the vertical steel bars are pre-buried, and then the steel bars are extended by binding and connected, extending to the top of the retaining wall, and then pouring is carried out.

[0060] The first layer is spliced ​​by alternating prefabricated block 1 8 and prefabricated block 2 9. The horizontal splicing method is to insert the horizontal tenon 3 of prefabricated block 1 8 into the second reserved groove 30 of prefabricated block 2 9 for connection. If the installation of the crack meter is considered, it is necessary to open the first reserved groove 15 on the surface of prefabricated block 1 8 and prefabricated block 2 9. The prefabricated block structure diagram has defaulted to the groove; the choice of the groove is mainly considered to consider how many crack meters are arranged for monitoring. The crack meter is arranged on the principle of one crack every other. The specific number of prefabricated blocks needs to be designed with the number of grooves.

[0061] For the second layer of splicing, the lower surfaces of prefabricated block 1 8 and prefabricated block 2 9 are spliced ​​and connected with the upper surface of prefabricated block 3 10 through connecting grooves 13 and connecting ridges 38, while the lower surface of prefabricated block 3 10 is spliced ​​and connected with the upper surfaces of prefabricated block 1 8 and prefabricated block 2 9 respectively through tenons 40 and vertical circular anchors 2. After the splicing is completed, a second reserved hole 11 will be left between the prefabricated blocks for drainage, and the block itself has a first drainage hole 60, so the drainage capacity of this retaining wall will be greatly improved.

[0062] After the splicing is completed, the wall will have the first reserved hole 1 and prestressed anchor rod 50 that we reserved in advance in the horizontal direction for prestressed anchoring. This advantage greatly improves the out-of-plane shear resistance and the overall stability. The anchoring is mainly carried out at both ends of the wall, and the anchor cable is passed through the first reserved hole 1, and then prestressed tension is performed. The anchor cable will pass through the vertical cavity 20. After the anchor cable is pre-tensioned, the vertical cavity 20 will be separated by a layer of concrete. After the pouring is completed and maintained, the integrity of the anchor cable and the cavity concrete can be greatly improved, so that the cracks in the cavity concrete can be suppressed and its strength can be increased. The prestressed anchor rod 50 will not be exposed to the outside for a long time, which improves its durability and avoids prestress loss.

[0063] The last step of the installation is the integral pressure beam. The integral pressure beam is mainly made of pre-buried steel bars in the foundation. Through the concrete-filled vertical cavity 20, the steel bars are connected and extended to the top of the wall. The extended steel bars are used as stress-bearing steel bars in the pressure beam and are placed at the main reinforcement position of the pressure beam to make it a firm whole, which is used for high and long support structure construction methods.

[0064] For some low retaining walls, they can be directly assembled, and the vertical cavity 20 can be directly filled with some local materials, which is more environmentally friendly. Small plants that beautify the environment can be planted in the reserved holes to improve the ecological environment.

[0065] The above description is only a preferred embodiment of the present invention and is not intended to limit the protection scope of the present invention.

Claims

1. A prestressed masonry assembled retaining wall, characterized in that: The invention comprises a foundation (4) and an assembled vertical wall arranged on the upper part of the foundation (4), wherein the vertical wall is composed of a prefabricated block 1 (8), a prefabricated block 2 (9), a prefabricated block 3 (10), a top rectangular pressure beam and a prestressed anchor rod (50), wherein the prefabricated block 1 (8), the prefabricated block 2 (9) and the prefabricated block 3 (10) are all located above the foundation (4), the upper surfaces of the prefabricated block 1 (8) and the prefabricated block 2 (9) are both provided with a vertical circular anchor (2), the lower surfaces of the prefabricated block 1 (8) and the prefabricated block 2 (9) are both provided with a connecting groove (13), and the prefabricated block 1 (8) and the prefabricated block 2 (9) are both provided with a connecting groove (13). The side surfaces of the prefabricated block 1 (8) and the prefabricated block 2 (9) are both provided with a first reserved groove (15), the upper surface of the prefabricated block 1 (8) is also fixed with an elliptical anchor body (16), the side surface of the prefabricated block 1 (8) is fixed with a transverse tenon (3), the prefabricated block 2 (9) and the prefabricated block 3 (10) are both provided with a vertical cavity (20), the side surface of the prefabricated block 2 (9) is provided with a second reserved groove (30), the upper surface of the prefabricated block 3 (10) is installed with a connecting convex strip (38), and the lower surface of the prefabricated block 3 (10) is provided with a concave tenon (40).

2. A prestressed masonry assembled retaining wall and a construction method thereof according to claim 1, characterized in that: A top tenon (5) is fixed on the upper surface of the foundation (4), and a sedimentation meter mounting hole (68) is opened on the lower surface of the foundation (4).

3. A prestressed masonry assembled retaining wall and a construction method thereof according to claim 1, characterized in that: The prefabricated block 1 (8) and the prefabricated block 3 (10) are both provided with a first reserved hole (1), and a second reserved hole (11) is provided between the prefabricated block 1 (8), the prefabricated block 2 (9) and the prefabricated block 3 (10).

4. A prestressed masonry assembled retaining wall and a construction method thereof according to claim 1, characterized in that: The prefabricated block 1 (8), the prefabricated block 2 (9) and the prefabricated block 3 (10) are all provided with a third reserved hole (12), the surface of one side of the prefabricated block 2 (9) and the prefabricated block 3 (10) is provided with a first drainage hole (60), and the surface of the prefabricated block 2 (9) and the prefabricated block 3 (10) away from the first drainage hole (60) is provided with a second drainage hole (66).

5. The prestressed masonry assembled retaining wall and the construction method thereof according to claim 1, characterized in that: The prefabricated block 1 (8) and the prefabricated block 2 (9) are spliced ​​and connected via a transverse tenon (3) and a second reserved groove (30), and the lower surfaces of the prefabricated block 1 (8) and the prefabricated block 2 (9) are spliced ​​and connected to the upper surface of the prefabricated block 3 (10) via a connecting groove (13) and a connecting convex strip (38).

6. The prestressed masonry assembled retaining wall and the construction method thereof according to claim 1, characterized in that: The lower surface of the prefabricated block three (10) is respectively spliced ​​and connected to the upper surfaces of the prefabricated block one (8) and the prefabricated block two (9) through a tenon (40) and a vertical circular anchor (2).

7. The prestressed masonry assembled retaining wall and the construction method thereof according to claim 1, characterized in that: The vertical cavities (20) on the second prefabricated block (9) and the third prefabricated block (10) are located at the same longitudinal linear position.

8. The prestressed masonry assembled retaining wall and the construction method thereof according to claim 4, characterized in that: The first drainage hole (60) and the second drainage hole (66) are located on the same straight line and aligned with each other.

9. The prestressed masonry assembled retaining wall and the construction method thereof according to claim 4, characterized in that: The third reserved holes (12) on the prefabricated block 1 (8) and the third reserved holes (12) on the prefabricated block 2 (9) are aligned with each other, and the third reserved holes (12) are connected to the vertical cavity (20).

10. The prestressed masonry assembled retaining wall and the construction method thereof according to claim 1, characterized in that: The construction method comprises the following steps: S1, first excavate to the bottom elevation of the roadbed, then locate the foundation (4) on the foundation and open a settlement meter installation hole (68); S2, then install the foundation formwork, tie the retaining wall foundation steel bars, consider whether to pour concrete for the vertical cavity (20), pre-embed the vertical steel bars of the vertical cavity (20), and perform pouring construction of the retaining wall foundation; S3, using a membrane interface agent to apply on the surface of the vertical circular anchor (2), the inner wall of the connecting groove (13) and the surface of the top tenon (5), and splicing the blocks coated with the membrane interface agent to form a wall body; S4, simultaneously filling the vertical cavity (20) of the retaining wall with large-grained aggregates. If the vertical cavity (20) needs to be cast, after the whole is spliced, considering the integrity of the cavity structural column, it is preferred to use a layer of concrete; S5, embedding a crack meter in the first reserved groove (15) on the wall surface to detect cracks, and performing real-time monitoring through a data acquisition instrument program; S6, the blocks in the horizontal single layer of the vertical wall are locked by means of horizontal prestressed members penetrating the horizontal reserved holes, and the horizontal prestressed anchor rods (50) are tensioned for anchoring, so as to achieve the effect of tightening the anchoring; S7. Carry out concrete curing.

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