CN214363599U - Buttress type retaining wall - Google Patents

Abstract

The utility model provides a buttress type retaining wall, which comprises a plurality of layers of first sub retaining walls, wherein the plurality of layers of first sub retaining walls are arranged along the height direction of the buttress type retaining wall, and two adjacent layers of first sub retaining walls are connected with each other; first sub-barricade includes first bottom plate, first shingle nail and a plurality of pillar, and first shingle nail and each pillar all set up in the top side of first bottom plate, and each pillar sets up and is located one side of first shingle nail orientation soil body with first shingle nail interval, along the direction of height of buttress formula barricade, the first bottom plate of upper first sub-barricade supports and is connected in the top of the first shingle nail of lower floor's first sub-barricade and each pillar. The counterfort retaining wall is an assembled retaining wall, can be assembled on site after being prefabricated in a factory, increases the retaining height of the retaining wall, improves the construction efficiency, and is less influenced by weather factors; a plurality of pillars are additionally arranged on the bottom plate, so that the first sub-retaining wall forms an integral structure, the integral stress characteristic of the first sub-retaining wall is improved, and the anti-sliding capacity and the self stability of the buttress retaining wall are improved.

Description

Buttress type retaining wall

Technical Field

The utility model relates to a road bed reinforcement technology field, in particular to counterfort formula barricade.

Background

The counterfort retaining wall is a reinforced concrete thin-wall retaining wall, generally used in higher filling road sections to stabilize the embankment and reduce the engineering quantity of earth and stone space and floor area. The counterfort retaining wall has smaller section size, the gravity of the soil body on the heel plate can effectively resist overturning and sliding, the vertical plate and the counterfort bear bending moment and shearing force generated by soil pressure together, and the counterfort retaining wall has good stress relative to the counterfort retaining wall. However, buttress walls suffer from the following problems: the retaining wall can realize lower retaining height, and when the wall height is larger, the steel consumption is increased rapidly, so that the economic performance is influenced; the retaining wall needs to be cast on site, and the construction quality is greatly influenced by factors such as construction technology, weather, raw materials and the like; and the construction period of the retaining wall is longer.

SUMMERY OF THE UTILITY MODEL

The utility model provides a buttress formula barricade to solve among the prior art buttress formula barricade and keep off highly low and the quality receives external factor to influence bigger technical problem.

In order to achieve the above purpose, the technical scheme of the utility model is realized like this:

the utility model provides a buttress type retaining wall, which comprises a plurality of layers of first sub retaining walls, wherein the plurality of layers of first sub retaining walls are arranged along the height direction of the buttress type retaining wall, and two adjacent layers of first sub retaining walls are connected with each other; each first sub-retaining wall includes first bottom plate, first shingle nail and a plurality of pillar, first shingle nail and each the pillar all set up in the top side of first bottom plate, each the pillar with first shingle nail interval sets up and is located first shingle nail is towards one side of the soil body, follows the direction of height of buttress formula retaining wall, upper strata the first bottom plate of first sub-retaining wall supports and is connected in the lower floor first shingle nail and each the top of pillar.

Further, a plurality of the pillars are arranged at intervals along the longitudinal direction of the buttress-type retaining wall.

Furthermore, each layer of the first sub-retaining wall is a prefabricated member, and the first sub-retaining walls are sequentially assembled from bottom to top.

Furthermore, the lower floor first sub-retaining wall the top of first shingle nail is formed with the tenon, and the upper floor first sub-retaining wall first hole has on the first bottom plate, the tenon embedding make the lower floor in the first hole first shingle nail and upper floor first sub-retaining wall first bottom plate is connected.

Furthermore, the number of the tenons on each first wall panel is multiple, and the tenons are arranged at intervals along the longitudinal direction of the first wall panel; the number of the first holes is multiple, and each first hole is arranged corresponding to one tenon.

Furthermore, the tenon on each first wall panel and the pillars are symmetrically arranged.

Furthermore, the first bottom plate of the first sub-retaining wall on the upper layer is provided with a plurality of second holes, and the top end of each strut of the first sub-retaining wall on the lower layer is embedded into one of the second holes to enable the strut to be connected with the first bottom plate of the first sub-retaining wall on the upper layer.

Furthermore, the first sub-retaining wall further comprises a plurality of first buttresses arranged on the inner side of the first wall panel, and the first buttresses are obliquely arranged between the first wall panel and the first bottom plate; a plurality of the first buttresses are spaced longitudinally along the first shingle.

Further, one end of the projection of the first buttress on the first base plate connected with the first buttress is connected with the projection of the tenon on the same first base plate.

Further, first sub-retaining wall still including set up in the second buttress of pillar side, the one end of second buttress is connected the pillar, and the other end is connected first bottom plate.

Furthermore, the number of the second buttresses on the same pillar is two, and the two second buttresses are respectively and oppositely arranged on the two transverse sides of the pillar.

Furthermore, the counterfort retaining wall also comprises a plurality of layers of geogrids, and each geogrid is laid into the stabilized soil body from one end, close to the stabilized soil body, of the first bottom plate; the multilayer geogrid is followed the direction of height interval setting of counterfort formula barricade.

Further, a plurality of third holes are formed in the first base plate, and the third holes are spaced apart from each other in the first base plate.

Furthermore, the buttress-type retaining wall further comprises a second sub-retaining wall, and the second sub-retaining wall is arranged on the first sub-retaining wall at the top end of the buttress-type retaining wall; the second sub-retaining wall comprises a second bottom plate and second wall plates, the second wall plates are arranged on the top side of the second bottom plate, and the second bottom plate is supported and connected to the lower layer of the first sub-retaining wall, and the first wall plates and the tops of the pillars are connected with the second sub-retaining wall.

The utility model provides a buttress formula barricade is the assembled barricade, can realize that the scene is assembled after the factory prefabrication, compares with traditional buttress formula barricade or gravity type barricade, under the prerequisite that does not increase masonry load, has increased the fender height of buttress formula barricade, has effectively promoted efficiency of construction and construction quality, saves the time limit for a project, and the construction is influenced by weather factor etc. less; in addition, a plurality of pillars are additionally arranged on the bottom plate of the retaining wall, so that the retaining wall, the first bottom plate and the first wall panel form an integral structure, the integral stress characteristic of each first sub-retaining wall is improved, and the anti-sliding capacity and the self stability of the buttress retaining wall are effectively improved.

Drawings

Fig. 1 is a schematic cross-sectional structure view of a buttress-type retaining wall according to an embodiment of the present invention;

fig. 2 is a schematic elevation structure view of the buttress-type retaining wall according to an embodiment of the present invention;

fig. 3 is a schematic view of a longitudinal section structure of the buttress-type retaining wall according to an embodiment of the present invention.

Description of reference numerals:

10. a first sub-retaining wall; 11. a first base plate; 11a, a third bore; 12. a first shingle; 12a, a tenon; 13. a pillar; 14. a first buttress; 15. a second buttress;

20. a second sub-retaining wall; 21. a second base plate; 22. a second shingle;

30. geogrid.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments. In the description of the present invention, the related orientation or positional relationship is based on the orientation or positional relationship shown in fig. 1, wherein "up" and "down" refer to the up-down direction of fig. 1. It is to be understood that such directional terms are merely for convenience in describing the present invention and to simplify the description, and are not intended to indicate or imply that the device or element so referred to must be in a particular orientation, constructed and operative in a particular orientation, and therefore should not be taken as limiting the invention.

In addition, the descriptions of "first", "second", etc. in the present invention are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number or order of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

Referring to fig. 1 to 3, the embodiment of the present application provides a buttress-type retaining wall, including multiple layers of first sub-retaining walls 10, where the multiple layers of first sub-retaining walls 10 are arranged along the height direction of the buttress-type retaining wall, and two adjacent layers of first sub-retaining walls 10 are connected to each other. Each first sub-retaining wall 10 includes a first bottom plate 11, a first shingle 12 and a plurality of pillars 13, the first shingle 12 and each pillar 13 all set up in the top side of first bottom plate 11, each pillar 13 sets up with first shingle 12 interval and is located the one side of first shingle 12 towards the soil body, along the direction of height of buttress formula retaining wall, the first bottom plate 11 of upper first sub-retaining wall 10 supports and is connected in the top of first shingle 12 of lower first sub-retaining wall 10 and each pillar 13.

In the embodiment of the present application, the multiple layers of the first sub-retaining walls 10 are connected to each other along the height direction of the buttress retaining wall, which effectively increases the height of the buttress retaining wall. The first wall surface 12 and the plurality of pillars 13 of the same first sub-retaining wall 10 are respectively disposed on the top side of the first bottom plate 11. The specific connection mode is as follows: the first bottom plate 11 of the upper first sub-wall 10 is connected to the top ends of the first wall plate 12 and the plurality of pillars 13 of the lower first sub-wall 10. It can be understood that the connection manner of the first bottom plate 11 of the upper first sub-retaining wall 10, the first wall plate 12 of the lower first sub-retaining wall 10, and the plurality of support columns 13 may be many, such as inserting, riveting, etc.

The first wall surface 12, the plurality of support columns 13 and the first bottom plate 11 of the same first sub-retaining wall 10 may be connected by means of insertion, riveting, co-casting, or the like. Therefore, a plurality of first sub-walls 10 can be prefabricated at a factory and assembled together at the site. That is, in some embodiments, each layer of the first sub-retaining wall 10 is a prefabricated member, and a plurality of the first sub-retaining walls 10 are assembled in sequence from bottom to top. The first bottom plate 11, the first wall surface plate 12 and the plurality of support pillars 13 of each first retaining sub-wall 10 may be prefabricated members, and the prefabricated members may be transported to the site to assemble the first retaining sub-wall 10. In another case, the first sub-retaining wall 10 may also be a prefabricated member, a plurality of first sub-retaining walls 10 are prefabricated in an industrial manner, and after being transported to a site, the plurality of first sub-retaining walls 10 are assembled from bottom to top. In order to ensure the structural stability and safety of the buttress retaining wall of the embodiment of the application, and considering the requirement on the bearing capacity of the foundation and the stress requirement of each connecting part of the buttress retaining wall, the height of the buttress retaining wall is not more than 15 m.

Specifically, the longitudinal length of the first base plate 11 is 2m to 6 m. The thickness of the first bottom plate 11 is determined by calculation according to the height and the load of the buttress type retaining wall, and is not suitable to be less than 0.3 m; the length along the transverse direction of the buttress type retaining wall is not less than 3m, so that the requirement of arranging the first wall panel 12 and the support columns 13 is met, and the requirement on the bearing capacity of a foundation is reduced. In some embodiments, the pillars 13 are single reinforced concrete pillars, preferably having a height of 1.5m to 2.5m, and a cross-sectional dimension of not less than 0.3m by 0.3 m. The pillars 13 may be arranged one at every 1.3m in the longitudinal direction, and the distance between the pillars 13 is adjusted according to the actual engineering. The vertical distance between one side surface of the support pillar 13 close to the soil body and the corresponding end part of the first bottom plate 11 is not less than 0.5m, so that the capacity of the first bottom plate 11 for bearing the soil pressure behind the retaining wall is improved, and the transverse soil pressure borne by the support pillar 13 is reduced. In some embodiments, the height of the first shingle 12 is 0.2m less than the height of the brace 13. Specifically, the first shingle 12 is a reinforced concrete structure. The first shingle 12 may be cast with the first floor 11.

In the embodiment of the present application, for the same first sub-retaining wall 10, the plurality of pillars 13 and the first wall panel 12 are disposed at intervals, and the plurality of pillars 13 are located on the first bottom plate 11 at a side close to the soil body, that is, at a side of the first wall panel 12 facing the soil body. The first bottom plate 11, the first wall surface plate 12 and the plurality of pillars 13 form an integral structure similar to a cuboid, so that the first sub-retaining wall 10 can be stressed integrally, and the stress characteristic of the first sub-retaining wall 10 is improved.

The buttress type retaining wall provided by the embodiment of the application is an assembled retaining wall, can be assembled on site after being prefabricated in a factory, and compared with the traditional buttress type retaining wall or a gravity type retaining wall, the buttress type retaining wall has the advantages that the retaining height of the buttress type retaining wall is increased on the premise of not increasing the masonry amount, the construction efficiency and the construction quality are effectively improved, the construction period is saved, and the construction is less influenced by weather factors and the like; in addition, a plurality of pillars 13 are additionally arranged on the bottom plate of the retaining wall, so that the retaining wall, the first bottom plate 11 and the first wall panel 12 form an integral structure, the integral stress characteristic of each first sub-retaining wall 10 is improved, and the anti-sliding capacity and the self-stability of the buttress retaining wall are effectively improved.

In some embodiments, a plurality of posts 13 are spaced longitudinally along the buttress wall. It can be understood that the plurality of support columns 13 are arranged longitudinally, and in general, the first wall panel 12 is also arranged longitudinally, that is, the plurality of support columns 13 are respectively arranged at equal intervals with respect to the first wall panel 12, so that the supporting effect of the lower-layer first sub-retaining wall 10 on the upper-layer first sub-retaining wall 10 is enhanced, and the self-stability of the buttress retaining wall is effectively improved. In addition, a plurality of pillars 13 are arranged at intervals, so that the number of pillars 13 is effectively reduced and the cost is reduced on the basis of meeting the supporting effect on the upper first sub-retaining wall 10.

In some embodiments, the top end of the first wall 12 of the lower first retaining sub-wall 10 is formed with a tenon 12a, the first bottom plate 11 of the upper first retaining sub-wall 10 is formed with a first hole, and the tenon 12a is inserted into the first hole to connect the lower first wall 12 with the first bottom plate 11 of the upper first retaining sub-wall 10. It can be understood that the tenon 12a of the lower first wall panel 12 is embedded into the first hole of the upper first bottom plate 11, so that the two first wall panels are connected to each other, thereby facilitating the assembly between two adjacent first retaining sub-walls 10. The connection relationship between the tenon 12a and the first hole makes the connection between two adjacent layers of the first sub-retaining walls 10 more stable. That is, the tenon 12a at the top end of the lower first shingle 12 is fitted into the first hole of the upper first floor 11. The depth of the first hole is not less than 0.2m, and the sectional dimension is preferably 1cm to 5cm larger than the dimension of the tenon 12 a.

Furthermore, the number of the tenons 12a on each first wall panel 12 is multiple, and the tenons 12a are arranged at intervals along the longitudinal direction of the first wall panel 12; the number of the first holes is multiple, and each first hole is arranged corresponding to one tenon 12 a. It will be appreciated that the longitudinal arrangement of the tenons 12a along the first shingle 12 facilitates the enhanced connection between the first shingle 12 and the upper first floor 11. A plurality of tenons 12a interval sets up, under the prerequisite of guaranteeing first shingle nail 12 and the first bottom plate 11 joint action of upper strata, has reduced tenon 12 a's quantity effectively, convenient processing and assembly. Specifically, the plurality of tenons 12a on each first wall panel 12 are symmetrically arranged with the plurality of support columns 13. A plurality of tenons 12a and a plurality of pillars 13 symmetry setting on same first shingle nail 12 top can further strengthen first shingle nail 12 and pillar 13 to the supporting role of upper first bottom plate 11, improve the overall stability of buttress formula barricade. That is, one tenon 12a is provided at every 1.3m in the longitudinal direction on the same first shingle 12. The spacing may be specifically adjusted according to the actual engineering. The height of the tenon 12a is not less than 0.2 m.

In some embodiments, the first bottom plate 11 of the upper first sub-wall 10 has a plurality of second holes, and the top end of each support pillar 13 of the lower first sub-wall 10 is embedded in a second hole to connect the support pillar 13 with the first bottom plate 11 of the upper first sub-wall 10. It can be understood that the connection mode between the supporting column 13 and the upper layer first base plate 11, preferably the top end of the supporting column 13 is embedded into the second hole of the upper layer first base plate 11, so as to facilitate the connection between the two, and facilitate the assembly of the two during assembly. Specifically, the depth of the second hole is not less than 0.2m, and the size of the pillar 13 embedded in the second hole is not less than 0.2 m.

In some embodiments, the first sub-retaining wall 10 further includes a plurality of first buttresses 14 disposed inside the first wall panel 12, and the first buttresses 14 are obliquely disposed between the first wall panel 12 and the first bottom plate 11; a plurality of first buttresses 14 are spaced longitudinally along the first shingle 12. In the embodiment of the present application, the plurality of first buttresses 14 are arranged at intervals in the longitudinal direction, and can support the first wall panel 12 in stages, so as to enhance the stability and the shear resistance of the first wall panel 12. Specifically, first buttress 14 is positioned one at each 1.3m interval in the longitudinal direction. The method can be adjusted according to actual engineering requirements.

Further, the projection of first buttress 14 onto first floor 11 to which it is attached is contiguous at one end with the projection of a tenon 12a onto the same first floor 11. That is, the longitudinal position of first buttress 14 along first wall panel 12 is the same as the longitudinal position of tenon 12a along first wall panel 12. At this time, the first buttress 14 can better enhance the stability and shear resistance of the joint of the first shingle 12 and the upper first floor 11.

In some embodiments, the first sub-retaining wall 10 further includes a second buttress 15 disposed on the side of the pillar 13, and one end of the second buttress 15 is connected to the pillar 13, and the other end is connected to the first bottom plate 11. In each first sub-retaining wall 10, a second buttress 15 is provided between the pillar 13 and the first floor 11. The second buttress 15 enhances the stability and shear resistance of the buttress 13. Further, the number of the second buttresses 15 on the same pillar 13 is two, and the two second buttresses 15 are respectively and oppositely arranged at two lateral sides of the pillar 13. It can be understood that, two second buttresses 15 are respectively arranged on two lateral sides of the same strut 13, so that the supporting effect on the strut 13 can be enhanced, and the balance stability and the shearing resistance of the strut 13 are further improved.

In some embodiments, the buttress wall further comprises a plurality of geogrids 30, wherein each geogrid 30 is laid into the stabilized soil body from one end of a first bottom plate 11 close to the stabilized soil body; the multiple layers of geogrids 30 are arranged at intervals along the height direction of the buttress-type retaining wall. Referring to fig. 1, the dotted line part is a fracture surface that may be formed by the calculated earth filling behind the retaining wall. Each project needs to be analyzed and calculated according to the mechanical property of the concrete soil body. In combination with the fracture surface condition, in order to effectively reduce the actual soil pressure of the soil body behind the retaining wall to the retaining wall, the geogrid 30 is arranged at the first bottom plate 11 of each layer of the first sub-retaining wall 10. Specifically, one end of the geogrid 30 is located at the end of the first bottom plate 11 close to the soil body, and the other end of the geogrid extends into the stabilized soil body. The geogrid 30 can enhance the bearing of the soil body behind the counterfort retaining wall, extends into the stabilized soil body, converts the dead weight of the soil body behind the retaining wall into a part of the retaining wall, and reduces the soil pressure of the soil body behind the retaining wall on the retaining wall. The geogrids 30 are arranged at intervals in the height direction, and can play a bearing role at different heights.

In some embodiments, the first base plate 11 has a plurality of third holes 11a formed therein, and the plurality of third holes 11a are spaced apart from each other on the first base plate 11. Understandably, the plurality of third holes 11a on the first bottom plate 11 can ensure the compactness of soil filling, and effectively enhance the capability of adapting to filling settlement of the buttress retaining wall. The lowermost first base plate 11 may not be provided with the third hole 11 a. Specifically, the pitch of the third holes 11a is 1.3m, the size is 1.7m in length, and the width is 0.5m, which can be adjusted according to actual engineering.

In some embodiments, the buttress-type retaining wall further comprises a second sub-retaining wall 20, and the second sub-retaining wall 20 is installed on the first sub-retaining wall 10 at the top end of the buttress-type retaining wall; the second retaining wall 20 includes a second bottom plate 21 and a second wall plate 22, the second wall plate 22 is disposed on the top side of the second bottom plate 21, and the second bottom plate 21 supports and connects to the first wall plate 12 of the lower first retaining wall 10 and the top ends of the pillars 13. It will be appreciated that the second sub-wall 20 is disposed at the top end of the buttress wall, and therefore, the need for the support posts 13 is eliminated. Compared with the first retaining sub-wall 10, the second retaining sub-wall 20 is not provided with the pillars 13 and the second buttresses 15. In addition, one end of the geogrid 30 corresponding to the second sub-retaining wall 20 is laid from the side of the second wall panel 22, and the other end extends into the stabilized soil.

The construction steps of the buttress-type retaining wall of the embodiment of the application are as follows:

1. and processing the roadbed base to ensure that the roadbed base meets the requirement of minimum bearing capacity. Meanwhile, the first sub-retaining wall 10 and the second sub-retaining wall 20 are prefabricated in a factory.

2. The prefabricated members of the first sub-retaining wall 10 and the second sub-retaining wall 20 are transported to a construction site, and the first sub-retaining wall 10 at the lowest layer is fixed and installed by using a crane or the like. The construction is carried out along the longitudinal sections of the embankment, and the longitudinal length of each section is not less than 20 m.

3. After the first sub-retaining wall 10 is constructed, filling soil behind the retaining wall, and compacting in layers. The height of the soil filling is equal to the top of the first wall panel 12, or the height of the soil filling is slightly higher than the top of the first wall panel 12 by 1 cm-5 cm. The geogrid 30 is then laid.

4. And respectively assembling a plurality of first sub-retaining walls 10 from bottom to top, filling soil, and laying geogrids 30.

5. After the first sub-retaining wall 10 is constructed, the second sub-retaining wall 20 is assembled on the top of the uppermost first sub-retaining wall 10, soil is filled behind the retaining wall, and the uppermost geogrid 30 is laid to complete the construction of the buttress retaining wall.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the scope of the present invention. Moreover, the technical solutions of the present invention between the various embodiments can be combined with each other, but it is necessary to be able to be realized by a person having ordinary skill in the art as a basis, and when the technical solutions are combined and contradictory or cannot be realized, it should be considered that the combination of the technical solutions does not exist, and the present invention is not within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims (14)

1. The utility model provides a buttress formula barricade which characterized in that: the multi-layer retaining wall comprises a plurality of layers of first sub retaining walls, wherein the plurality of layers of first sub retaining walls are arranged along the height direction of the buttress retaining wall, and two adjacent layers of first sub retaining walls are connected with each other;

each first sub-retaining wall includes first bottom plate, first shingle nail and a plurality of pillar, first shingle nail and each the pillar all set up in the top side of first bottom plate, each the pillar with first shingle nail interval sets up and is located first shingle nail is towards one side of the soil body, follows the direction of height of buttress formula retaining wall, upper strata the first bottom plate of first sub-retaining wall supports and is connected in the lower floor first shingle nail and each the top of pillar.

2. The buttress wall of claim 1, wherein a plurality of the posts are spaced apart longitudinally along the buttress wall.

3. The buttress-type retaining wall of claim 1, wherein each layer of the first sub-retaining wall is a prefabricated member, and a plurality of the first sub-retaining walls are sequentially assembled from bottom to top.

4. The buttress-type retaining wall of claim 1, wherein a tenon is formed at the top end of the first wall panel of the first sub-retaining wall at the lower layer, a first hole is formed on the first bottom plate of the first sub-retaining wall at the upper layer, and the tenon is embedded into the first hole to connect the first wall panel at the lower layer with the first bottom plate of the first sub-retaining wall at the upper layer.

5. The buttress wall of claim 4, wherein each of the first shingles includes a plurality of tenons spaced longitudinally along the first shingle; the number of the first holes is multiple, and each first hole is arranged corresponding to one tenon.

6. The buttress wall of claim 4, wherein the plurality of tenons and the plurality of studs on each of the first shingles are symmetrically disposed.

7. The buttress-type retaining wall of claim 1, wherein said first bottom plate of said first sub-retaining wall of the upper layer has a plurality of second holes, and the top end of each of said supporting pillars of said first sub-retaining wall of the lower layer is embedded into one of said second holes so that said supporting pillars are connected to said first bottom plate of said first sub-retaining wall of the upper layer.

8. The buttress wall of any one of claims 4-6, wherein the first sub-retaining wall further comprises a plurality of first buttresses disposed inside the first shingle, the first buttresses being disposed obliquely between the first shingle and the first floor; a plurality of the first buttresses are spaced longitudinally along the first shingle.

9. The buttress wall of claim 8, wherein the projection of the first buttress on the first base plate to which it is attached is contiguous with the projection of a said tenon on the same said first base plate.

10. The buttress-type retaining wall of any one of claims 1-7, wherein the first sub-retaining wall further comprises a second buttress arranged on the side surface of the pillar, one end of the second buttress is connected with the pillar, and the other end of the second buttress is connected with the first bottom plate.

11. The buttress-type retaining wall of claim 10, wherein the number of the second buttresses on the same post is two, and the two second buttresses are oppositely arranged on the two lateral sides of the post respectively.

12. The buttress wall of any one of claims 1-7, wherein the buttress wall further comprises a plurality of layers of geogrids, each geogrid being laid into the stabilized soil body from an end of the first bottom plate adjacent to the stabilized soil body; the multilayer geogrid is followed the direction of height interval setting of counterfort formula barricade.

13. The buttress wall of any one of claims 1-7, wherein a plurality of third holes are formed in the first base plate, and a plurality of the third holes are spaced apart from each other on the first base plate.

14. The buttress-type retaining wall according to any one of claims 1 to 7, further comprising a second sub-retaining wall, wherein the second sub-retaining wall is mounted on the first sub-retaining wall at the top end of the buttress-type retaining wall;

the second sub-retaining wall comprises a second bottom plate and second wall plates, the second wall plates are arranged on the top side of the second bottom plate, and the second bottom plate is supported and connected to the lower layer of the first sub-retaining wall, and the first wall plates and the tops of the pillars are connected with the second sub-retaining wall.

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