CN110424451A - gravity retaining wall - Google Patents

Abstract

The invention provides a gravity retaining wall, which comprises a wall body and a greening groove installation part; rib grooves are formed on the wall body; at least a part of the greening groove installation part is arranged in the rib groove; the greening groove The installation part is surrounded by the inner wall of the rib groove to form a green groove where plants can be planted. By adopting the invention, the requirement of ecological greening can be met while ensuring good structural stability of the gravity retaining wall.

Description

gravity retaining wall

technical field

The invention relates to the field of geotechnical engineering, in particular to a gravity retaining wall.

Background technique

Gravity retaining wall is a retaining structure widely used in railways, highway embankments and cuttings, tunnel openings, bridges, water conservancy and housing construction, etc. It mainly relies on the self-gravity of the wall to resist the lateral pressure of the soil behind the wall To maintain the stability of the retaining wall under the earth pressure, it is a kind of retaining wall commonly used in my country at present. Gravity retaining walls are generally made of masonry rubble concrete or integrally poured concrete.

In order to solve the problem of greening, some gravity retaining walls are provided with outwardly protruding green grooves on the wall. However, after the outwardly convex green grooves are filled with planting soil and plants are planted, the weight of the gravity retaining wall will be increased, thereby This increases the overturning moment of the gravity retaining wall and increases the risk of overturning. There are also some gravity retaining walls that are assembled by a plurality of segmented prefabricated hollow blocks, and green plants are planted in the hollow structure of the blocks to realize the functions of support and greening. Although this kind of gravity retaining wall can also realize the greening function, because the retaining wall structure is made of hollow blocks, the vertical and horizontal integrity of the wall is poor, and the terrain adaptability is poor. The planting soil inside is easy to lose, which will also make it difficult to guarantee the long-term stability of the retaining wall.

Contents of the invention

In view of this, the main purpose of the present invention is to provide a gravity retaining wall to solve the problem that the gravity retaining wall in the prior art cannot meet the requirements of ecological greening while ensuring good structural stability.

In order to achieve the above object, technical solution of the present invention is achieved in that way:

The invention provides a gravity retaining wall, which includes a wall body and a greening groove installation part;

Rib grooves are formed on the wall;

At least a part of the greening groove installation part is arranged in the rib groove; the greening groove installation part surrounds the inner wall of the rib groove to form a greening groove where plants can be planted.

Further, a plurality of the greening groove installation parts are arranged at intervals in the rib groove; each of the greening groove installation parts respectively encloses with the inner wall of the rib groove to form one of the greening grooves.

Further, a plurality of vertically arranged rib grooves are formed on the wall, and the plurality of rib grooves are arranged at intervals.

Further, a rib column is formed between two adjacent rib grooves; the width of the rib groove is at least 2.5 times the width of the rib column.

Further, the greening groove installation part includes a base plate and a back plate arranged on one side of the base plate; an insertion slot is formed on the inner wall of the rib groove;

The bottom plate is plugged and fitted with the insertion groove, so that the bottom plate, the back plate, and the inner wall of the rib groove are enclosed to form the greening groove.

Further, the installation part of the greening groove is a reinforced concrete prefabricated part.

Further, a first drain hole is formed on the greening groove installation part, and the first drain hole communicates with the greening groove; and/or,

A second weep hole is formed on the wall; the second weep hole runs through the wall back of the wall and the inner wall of the rib groove, and communicates with the greening groove.

Further, the gravity retaining wall also includes a wall back filter layer, and the wall back filter layer is connected to the wall back of the wall body.

Further, the gravity retaining wall also includes a wall top platform sealing layer and a first wall back anti-seepage layer; the wall top platform sealing layer is connected to the wall back of the wall body, and the wall close to the wall body top;

There is an interval between the end of the wall back filter layer close to the wall top platform sealing layer and the wall top platform sealing layer; the first wall back anti-seepage layer is connected to the wall back of the wall body, and is located at at the interval.

Further, the gravity retaining wall also includes a second anti-seepage layer at the back of the wall;

The end of the wall back filter layer away from the wall top platform sealing layer is located on the side of the wall front foundation backfill surface of the wall body close to the wall top platform sealing layer;

The second anti-seepage layer at the back of the wall is connected to the back of the wall, and is located on the side of the backfill surface of the front wall of the wall away from the sealing layer of the wall top platform.

The invention provides a gravity retaining wall, by forming a rib groove on the wall, and matching the green groove installation part with the rib groove to form a green groove, while ensuring the gravity retaining wall has good structural stability, Meet the requirements of ecological greening.

Description of drawings

Fig. 1 is a cross-sectional view of a gravity retaining wall provided by an embodiment of the present invention, in which both planting soil and plants are shown;

Fig. 2 is the A direction view of Fig. 1, and among the figure, plants are omitted;

Fig. 3 is the structural representation of wall body in Fig. 2;

Fig. 4 is a structural schematic diagram of the installation part of the greening groove in Fig. 1 .

Reference signs: gravity retaining wall 100; wall body 1; rib groove 1a; socket groove 1b; rib column 1c; second drain hole 1d; wall back 1e; wall top 1f; 2a; bottom plate 21; first drain hole 21a; back plate 22; reverse filter layer 3 at the back of the wall; first anti-seepage layer at the back of the wall; ; plants 300.

Detailed ways

The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

It should be noted that, in the case of no conflict, the embodiments of the present invention and the technical features in the embodiments can be combined with each other, and the detailed description in the specific embodiments should be understood as an explanation of the gist of the present invention, and should not be regarded as an explanation of the present invention. undue restrictions.

In the description of the present invention, the orientation or positional relationship is based on the normal use state of the gravity retaining wall, such as the orientation or positional relationship shown in Figure 2, where "vertical" is the up and down direction of Figure 2, which needs to be understood It is noted that these orientation terms 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 construed as limiting the present invention .

An embodiment of the present invention provides a gravity retaining wall, please refer to Fig. 1 to Fig. 3, the gravity retaining wall 100 includes a wall body 1 and a greening groove installation part 2, a rib groove 1a is formed on the wall body 1, and the greening At least a part of the groove installation part 2 is arranged in the rib groove 1a, and the greening groove installation part 2 and the inner wall of the rib groove 1a are surrounded to form a green groove 2a where plants 300 can be planted.

Specifically, because the traditional gravity retaining wall adopts integral cast-in-place, the wall does not have the ecological function of greening. Generally, only a small-scale greening design can be carried out on the platform in front of the wall or the platform on the top of the wall. The space is greatly limited, therefore, the plant viability is poor, the wall greening is difficult, and the landscape effect is relatively poor. The greening groove 2a of the present embodiment is formed by the inner wall of the greening groove installation part 2 and the rib groove 1a. The planting space of the greening groove 2a is larger, and the plants 300 are easier to survive, so it can be formed on the gravity retaining wall 100. The ecological wall can realize the purpose of greening the wall body 1 . The plants 300 to be planted may be some garden plants with a greening function, and the types of the plants 300 may be trees, shrubs, vines and bamboos, etc., which are not limited here. The type of planting soil 200 can be selected according to the characteristics of the plants 300 to be planted and in combination with local climate characteristics. The greening groove installation part 2 can be set in the rib groove 1a as part of its structure, or the whole greening groove installation part 2 can be set in the rib groove 1a, as long as the greening groove installation part 2 can be surrounded by the inner wall of the rib groove 1a The greening groove 2a gets final product.

The rib groove 1a formed on the wall 1 is equivalent to reducing the weight of the wall 1 to a certain extent, thereby saving building materials and reducing the overturning moment of the gravity retaining wall 100, thereby preventing gravity The retaining wall 100 overturned. At the same time, the planting soil 200 and the planted plants 300 in the greening groove 2a can ensure to a certain extent that the overall weight of the gravity retaining wall 100 will not reduce the anti-sliding stability because it is too light. In addition, the wall body 1 of this embodiment is an integral structure. Compared with the assembled retaining wall, the construction process of the wall body 1 is simpler and more mature, and the construction quality can be guaranteed. That is to say, the gravity retaining wall 100 of this embodiment can ensure the integrity and long-term stability of its structure while having the function of ecological greening.

Please continue to refer to FIG. 1 to FIG. 3 , a plurality of greening groove installation parts 2 are arranged at intervals in the rib groove 1a of this embodiment, and each greening groove installation part 2 is respectively surrounded by the inner wall of the rib groove 1a to form a greening groove 2a. That is to say, one rib groove 1a is correspondingly provided with a plurality of greening grooves 2a, and the plurality of greening grooves 2a are spaced apart from each other to ensure that the planted plants 300 have enough growth space. The presence of multiple greening grooves 2 a can increase the coverage area of the plants 300 on the gravity retaining wall 100 , thus making the gravity retaining wall 100 more beautiful.

Please continue to refer to FIG. 2 , the wall body 1 of this embodiment is formed with a plurality of vertically arranged rib grooves 1a, and the plurality of rib grooves 1a are arranged at intervals. That is to say, there are multiple rib grooves 1a in this embodiment, so that the coverage area of the plants 300 on the gravity retaining wall 100 can be further increased. The vertical rib groove 1a not only facilitates the construction of the wall body 1, but also facilitates the installation of the greening groove installation part 2. The specific dimensions of the depth and width of the rib groove 1a in this embodiment can be determined through stable calculations. Preferably, the width L1 of the rib groove 1a is at least 2.5 times the width L2 of the rib column 1c formed between two adjacent rib grooves 1a. It can be understood that the rib groove 1a can be arranged horizontally, obliquely, or in combination of various directions as required, and there is no limitation here. The number of rib grooves 1a and the number of green groove installation parts 2 correspondingly provided in each rib groove 1a can also be adjusted according to needs, and there is no limitation here.

Please continue to refer to FIG. 1 to FIG. 4 , the greening groove installation part 2 of this embodiment includes a bottom plate 21 and a back plate 22 disposed on one side of the bottom plate 21 , and an insertion groove 1 b is formed on the inner wall of the rib groove 1 a. The bottom plate 21 is mated with the insertion groove 1b, and the bottom plate 21, the back plate 22, and the inner wall of the rib groove 1a enclose to form a greening groove 2a.

Specifically, in order to ensure that the structural strength of the greening groove installation part 2 can meet the weight requirements of the planting soil 200 and the plants 300 set in the greening groove 2a, and at the same time improve the construction efficiency of the gravity retaining wall 100, this embodiment The greening groove installation part 2 is a reinforced concrete prefabricated part formed by one-time pouring of reinforced concrete. When constructing the gravity retaining wall 100, the wall body 1 can be formed by casting on site first, and when the wall body 1 is cast in place in the vertical formwork, an insertion slot 1b of corresponding size is reserved on the inner wall of the rib groove 1a . Before installing the greening groove mounting part 2, a certain amount of lubricating grease, such as butter, can be smeared in the socket 1b to avoid damage to the bottom plate 21 during insertion into the socket 1b, and then connect the bottom plate 21 to the socket 1b. Inserting fit, the joint between the bottom plate 21 and the inserting groove 1b can be filled and sealed with cement mortar, so that the construction quality can be guaranteed to be controllable. It can be understood that, in other embodiments, the installation part 2 for the greening channel can also be provided by casting in situ.

Please continue to refer to FIG. 1 , a first drain hole 21 a is formed on the greening groove installation part 2 of this embodiment, and the first drain hole 21 a communicates with the greening groove 2 a. The purpose of providing the first weep hole 21a is to discharge the accumulated water in the greening tank 2a in time, so as to avoid waterlogging in the greening tank 2a and affect the growth and survival of the plants 300 . The first drain hole 21a of the present embodiment is arranged on the base plate 21, and in other embodiments, the first drain hole 21a can also be arranged on the back plate 22, as long as it is convenient to discharge the accumulated water in the greening tank 2a. Can.

Please continue to refer to FIG. 1 , a second drain hole 1d is formed on the wall body 1 of this embodiment, and the second drain hole 1d penetrates the wall back 1e of the wall body 1 and the inner wall of the rib groove 1a, and communicates with the greening groove 2a. That is to say, one end of the second drain hole 1d communicates with the soil on the side of the wall back 1e of the wall body 1, and the other end of the second drain hole 1d communicates with the greening groove 2a, so that the soil can be discharged in time While ensuring the stability of the soil, the groundwater discharged can also be introduced into the greening tank 2a through the second weep hole 1d to irrigate the plants 300 in the greening tank 2a to prevent the plants 300 from dying due to lack of water. dead. This embodiment is provided with a plurality of greening grooves 2a, therefore, a plurality of second drain holes 1d are also provided, thus ensuring that the plants 300 in each greening groove 2a can pass through the corresponding second drain holes 1d. It is irrigated by the outflow of groundwater. Each second drain hole 1d in this embodiment is set above the corresponding greening groove 2a, which means that the groundwater discharged from the second draining hole 1d flows into the greening groove 2a from above the greening groove 2a. In other embodiments, the second drain hole 1d can also communicate with the inner wall of the rib groove 1a corresponding to the setting position of the greening groove 2a, which means that the groundwater discharged from the second drain hole 1d can directly flow into the planting soil 200 middle.

Please continue to refer to FIG. 1 , the gravity retaining wall 100 of this embodiment further includes a wall back filter layer 3 , and the wall back filter layer 3 is connected to the wall back 1 e of the wall body 1 . The reverse filter layer 3 at the back of the wall has functions such as drainage, filtration, seepage prevention, and buffering, thereby improving the stability of the gravity retaining wall 100 .

Please continue to refer to Fig. 1, the gravity type retaining wall 100 of the present embodiment also includes a wall top platform sealing layer 5 and a first wall back anti-seepage layer 4, the wall top platform sealing layer 5 is connected with the wall back 1e of the wall body 1, and Close to the wall top 1f of the wall body 1, there is an interval between the end of the wall back filter layer 3 close to the wall top platform sealing layer 5 and the wall top platform sealing layer 5, the first wall back anti-seepage layer 4 and the wall back of the wall body 1 1e is connected and located at the interval between the end of the wall back filter layer 3 close to the wall top platform sealing layer 5 and the wall top platform sealing layer 5 . The first anti-seepage layer 4 on the back of the wall can reduce the infiltration of rainwater on the surface into the soil, so as to prevent potential safety hazards due to excessive water accumulation in the soil.

Please continue to refer to FIG. 1 , the gravity retaining wall 100 of the present embodiment also includes a second anti-seepage layer 6 at the back of the wall, and the end of the anti-filtration layer 3 at the back of the wall away from the sealing layer 5 of the platform at the top of the wall is located at the backfill surface of the front wall of the wall body 1 B is close to the side of the wall top platform sealing layer 5, that is to say, the wall back filter layer 3 is away from the end of the wall top platform sealing layer 5 downwards and does not exceed the wall front base backfill surface B of the wall body 1, and the second wall back protection The seepage layer 6 is connected to the wall back 1e of the wall body 1, and is located on the side of the front foundation backfill surface B of the wall body 1 away from the sealing layer 5 of the wall top platform. The second anti-seepage layer 6 at the back of the wall can further reduce the penetration of groundwater in the soil into the foundation of the gravity retaining wall 100 and affect the stability of the gravity retaining wall 100 . It should be noted that the first wall-back anti-seepage layer 4 and/or the second wall-back anti-seepage layer 6 can be provided according to needs, which are not limited here.

The construction process of the gravity retaining wall 100 of the present embodiment is as follows:

(1) Level the site and carry out necessary foundation treatment according to the foundation conditions;

(2), carry out foundation excavation, after foundation treatment leveling and tamping is finished, fill the bottom of wall body 1 according to design requirement;

(3), according to the position and size of the rib groove 1a, the formwork is established, the cast-in-place wall body 1 is maintained according to the maintenance standard, and the formwork is removed after the concrete reaches the maintenance standard;

(4), carry out the installation of anti-seepage layer 3 at the back of the wall, the anti-seepage layer 4 at the back of the wall, the anti-seepage layer 6 at the back of the second wall, and backfill the positions such as the back of the wall 1e after installation;

(5), install the greening groove mounting part 2 on site, and use cement mortar to fill and seal the connection position between the greening groove mounting part 2 and the wall body 1;

Specifically, the installation part 2 of the greening groove is prefabricated in advance, and should be hoisted by machinery during installation. Before installing the greening groove mounting part 2, a certain amount of lubricating grease, such as butter, can be smeared in the socket 1b to avoid damage to the bottom plate 21 during insertion into the socket 1b, and then connect the bottom plate 21 to the socket 1b. The joints between the base plate 21 and the socket slot 1 b and the joints between the back plate 22 and the wall body 1 can be plugged and sealed with cement mortar.

(6), pouring wall top platform sealing layer 5.

After the construction is completed, the planting soil 200 can be backfilled in the greening tank 2a, and the plants 300 can be planted.

The above is only a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Anyone familiar with the technical field can easily think of changes or replacements within the technical scope disclosed in the present invention, and they should all be included in the scope of the present invention. within the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims (10)

1. A gravity type retaining wall is characterized in that it comprises a wall body and a greening groove installation part; Rib grooves are formed on the wall; At least a part of the greening groove installation part is arranged in the rib groove; the greening groove installation part surrounds the inner wall of the rib groove to form a greening groove where plants can be planted. 2. The gravity retaining wall according to claim 1, characterized in that, a plurality of said greening groove installation parts are arranged at intervals in said rib groove; The inner wall encircles to form a said greening groove. 3. The gravity retaining wall according to claim 1 or 2, characterized in that, a plurality of rib grooves arranged vertically are formed on the wall body, and the plurality of rib grooves are arranged at intervals. 4. The gravity retaining wall according to claim 3, wherein a rib column is formed between two adjacent rib grooves; the width of the rib groove is at least 2.5 times the width of the rib column . 5. The gravity retaining wall according to claim 1 or 2, characterized in that, the green groove installation part comprises a bottom plate and a back plate arranged on one side of the bottom plate; an insertion hole is formed on the inner wall of the rib groove slot; The bottom plate is plugged and fitted with the insertion groove, so that the bottom plate, the back plate, and the inner wall of the rib groove are enclosed to form the greening groove. 6. The gravity retaining wall according to claim 5, characterized in that, the installation part of the greening groove is a reinforced concrete prefabricated part. 7. The gravity retaining wall according to claim 1 or 2, characterized in that a first drain hole is formed on the greening groove installation part, and the first drain hole communicates with the greening groove; and /or, A second weep hole is formed on the wall; the second weep hole runs through the wall back of the wall and the inner wall of the rib groove, and communicates with the greening groove. 8. The gravity retaining wall according to claim 1 or 2, characterized in that, the gravity retaining wall further comprises a wall back filter layer, and the wall back filter layer is connected to the wall back of the wall body. 9. The gravity retaining wall according to claim 8, characterized in that, the gravity retaining wall also comprises a wall top platform sealing layer and a first wall back anti-seepage layer; the wall top platform sealing layer and the The wall back of the wall body is connected and is close to the wall top of the wall body; There is an interval between the end of the wall back filter layer close to the wall top platform sealing layer and the wall top platform sealing layer; the first wall back anti-seepage layer is connected to the wall back of the wall body, and is located at at the interval. 10. The gravity retaining wall according to claim 9, characterized in that, the gravity retaining wall further comprises a second anti-seepage layer at the back of the wall; The end of the wall back filter layer away from the wall top platform sealing layer is located on the side of the wall front foundation backfill surface of the wall body close to the wall top platform sealing layer; The second anti-seepage layer at the back of the wall is connected to the back of the wall, and is located on the side of the backfill surface of the front wall of the wall away from the sealing layer of the wall top platform.