Two-stage retaining wall and two-stage retaining wall structure

Abstract

The utility model discloses a second-stage retaining wall and a two-stage retaining wall structure, the second-stage retaining wall comprises a base part, an anti-flood wall and a plurality of stand columns, the base part is embedded in the far-water side of the first-stage retaining wall, the anti-flood wall is arranged at the top of the base part, the upper end of the anti-flood wall is exposed out of the ground, and the exposed end of the anti-flood wall is provided with a decoration surface. The multiple stand columns are arranged at intervals along the axis of the anti-flood wall, the protective fences are arranged between every two adjacent stand columns, the protective fences are arranged at the top end of the anti-flood wall, a secondary anti-flood structure is constructed through the anti-flood wall, the foundation part ensures that the anti-flood wall is firm and stable, the decoration face is used for beautifying the exposed end of the anti-flood wall, and the environment attractiveness is improved. The stand columns support the anti-flood wall, the strength of the anti-flood wall is improved, meanwhile, installation of a protective fence can be supported, people are prevented from climbing over through the protective fence, the environment is further beautified through the protective fence, and the whole anti-flood wall can effectively separate public areas from private spaces such as schools, residences and industrial and mining enterprises while preventing flood.

Description

Technical Field

[0001] The utility model belongs to the technical field of secondary retaining walls, and more specifically, relates to a secondary retaining wall and a two-stage retaining wall structure. Background Art

[0002] In the process of river management, the flood control compliance of residential areas along the river usually needs to be considered in combination with the existing damage of retaining walls, the size of the hinterland adjacent to the river, the height difference of flood control, environmental governance needs, and residents' satisfaction surveys. For example, the existing retaining walls of riverside buildings such as schools, residences, and industrial and mining enterprises that are still a certain distance from the river mouth are intact, but the flood control has not yet met the standards. The existing protective walls can only meet the low-level use, not the high-level use, and the high-level protection needs to be supplemented. However, due to geographical restrictions, it is impossible to rebuild or transform the existing retaining walls on the original site, and the layout needs to be replanned. Utility Model Content

[0003] The utility model aims to provide a secondary retaining wall in view of the deficiencies in the prior art, so as to solve the problem that the existing retaining wall cannot be rebuilt or modified on the original site due to geographical restrictions and needs to be replanned and laid out.

[0004] In order to achieve the above object, the utility model provides a secondary retaining wall, comprising:

[0005] A base portion, wherein the base portion is buried at a far water side of the primary retaining wall;

[0006] A flood wall, wherein the flood wall is arranged on the top of the base portion, the upper end of the flood wall is exposed on the ground, and the exposed end of the flood wall is provided with a finishing surface;

[0007] A plurality of columns are arranged at intervals along the axis of the flood wall, a guardrail is arranged between two adjacent columns, and the guardrail is arranged at the top of the flood wall.

[0008] Optionally, a vertical projection of the flood wall is located within a vertical projection of the base.

[0009] Optionally, a cushion layer and a riprap layer are sequentially arranged at the lower end of the base.

[0010] Optionally, the base, the cushion layer and the riprap layer form a step-like structure.

[0011] Optionally, the cushion layer is a C25 plain concrete cushion layer.

[0012] Optionally, it also includes a first construction groove and a second construction groove from top to bottom, the first construction groove is an inverted isosceles trapezoid, the second construction groove is a rectangle, the riprap layer is arranged in the second construction groove, and the cushion layer and the base are arranged in the first construction groove.

[0013] Optionally, the excavation slope ratio of the first construction trench is 1:2.

[0014] Optionally, both ends of the column are exposed outside the decorative layer.

[0015] Optionally, settlement observation points are also arranged at the top end of the flood control wall.

[0016] The present utility model also provides a two-stage retaining wall structure, including:

[0017] A first-stage retaining wall, with backfill arranged on the water-facing side of the first-stage retaining wall;

[0018] The above-mentioned second-stage retaining wall, which is arranged in parallel in the backfill on the water-facing side of the first-stage retaining wall, and a green belt or a waterfront walkway is arranged between the second-stage retaining wall and the first-stage retaining wall.

[0019] The present utility model provides a second-stage retaining wall, and its beneficial effects are as follows:

[0020] This second-stage retaining wall constructs a two-stage flood control structure through the flood control wall. The base ensures the firmness and stability of the flood control wall, and the decorative surface is used to beautify the exposed end of the flood control wall, improving the environmental beauty. The columns support the flood control wall, improving the strength of the flood control wall and being able to support the installation of guardrails. The guardrails prevent people from climbing over and further beautify the environment. Overall, it can effectively separate the public area from private spaces such as schools, residences, industrial and mining enterprises while preventing floods.

[0021] Other features and advantages of the present utility model will be described in detail in the subsequent specific implementation part. Description of the Drawings

[0022] By describing the exemplary embodiments of the present utility model in more detail in conjunction with the drawings, the above-mentioned and other objects, features, and advantages of the present utility model will become more obvious. Among them, in the exemplary embodiments of the present utility model, the same reference numerals generally represent the same components.

[0023] Figure 1 Shows a schematic structural diagram of a second-stage retaining wall according to an embodiment of the present utility model.

[0024] Figure 2 Shows a schematic structural diagram of the guardrail of a second-stage retaining wall according to an embodiment of the present utility model.

[0025] Description of the Reference Numerals in the Drawings:

[0026] 1. First-stage retaining wall; 2. Backfill; 3. Base; 4. Flood control wall; 5. Decorative surface; 6. Column; 7. Guardrail; 8. Cushion layer; 9. Stone-filled silt compaction layer; 10. Settlement observation point. Detailed implementation mode

[0027] The preferred implementation mode of the present utility model will be described in more detail below. Although the preferred implementation mode of the present utility model is described below, it should be understood that the present utility model can be implemented in various forms and should not be limited by the implementation modes set forth herein. On the contrary, these implementation modes are provided to make the present utility model more thorough and complete, and to fully convey the scope of the present utility model to those skilled in the art.

[0028] As Figure 1-2 shown, a secondary retaining wall includes:

[0029] A base 3, and the base 3 is buried on the water - far side of the primary retaining wall 1;

[0030] A flood - control wall 4, the flood - control wall 4 is arranged on the top of the base 3, the upper end of the flood - control wall 4 is exposed above the ground, and a finishing surface 5 is arranged at the exposed end of the flood - control wall 4;

[0031] A plurality of columns 6, the plurality of columns 6 are arranged at intervals along the axis of the flood - control wall 4, a guardrail 7 is arranged between two adjacent columns 6, and the guardrail 7 is arranged at the top of the flood - control wall 4.

[0032] Specifically, a secondary flood - control structure is constructed by the flood - control wall 4. The base 3 ensures the firmness and stability of the flood - control wall 4. The finishing surface 5 is used to beautify the exposed end of the flood - control wall 4 and improve the environmental beauty. The columns 6 support the flood - control wall 4, improve the strength of the flood - control wall 4 and can also support the installation of the guardrail 7. The guardrail 7 prevents people from climbing over and further beautifies the environment. Overall, it can effectively separate the public area from private spaces such as schools, residences, industrial and mining enterprises while preventing floods.

[0033] Furthermore, the flood - control wall 4 can be provided with expansion joints at intervals according to the building specifications to adapt to thermal expansion and contraction. The finishing surface 5, columns 6 and guardrail 7 can be sprayed with real stone paint and painted respectively to reflect the water - based theory of rural revitalization. They can also promote the publicity work of water culture and water science popularization by hanging publicity slogans, and promote the integration of water culture and residents' lives.

[0034] Moreover, the guardrail 7 is a grid structure, including 30x30x3mm thick galvanized steel pipes, and the outer surface is sprayed with dark gray paint. The finishing surface 5 is a 2.5 - cm - thick 1:2.5 cement mortar layer, and the outer surface is sprayed with off - white real stone paint. The column 6 is a C30 reinforced concrete with a size of 39x39cm. A 2 - cm - wide expansion joint is arranged every 5m on the flood - control wall 4 between the wall columns.

[0035] In this embodiment, the vertical projection of the flood - control wall 4 is located within the vertical projection of the base 3.

[0036] Specifically, the vertical projection of the flood control wall 4 is located within the vertical projection of the base 3, so that the flood control wall 4 and the base 3 form a stepped structure, ensuring the stable support of the base 3 for the flood control wall 4.

[0037] Furthermore, the water-facing side of the flood control wall 4 is located on the far-water side of the water-facing side of the base 3.

[0038] In this embodiment, a cushion layer 8 and a stone-filled compaction layer 9 are sequentially arranged at the lower end of the base 3.

[0039] Specifically, the cushion layer 8 and the stone-filled compaction layer 9 are used to adapt to the soft soil layer.

[0040] In this embodiment, the base 3, the cushion layer 8 and the stone-filled compaction layer 9 form a stepped structure.

[0041] Specifically, the base 3, the cushion layer 8 and the stone-filled compaction layer 9 are sequentially stacked into a stepped structure to ensure firmness and stability.

[0042] In this embodiment, the cushion layer 8 is a C25 plain concrete cushion layer 8.

[0043] Specifically, the construction of the flood control wall 4 is facilitated by leveling with the cushion layer 8.

[0044] Furthermore, a 10 cm thick C25 plain concrete cushion layer 8 is provided under the base 3, and the bottom of the plain concrete cushion layer 8 is treated by stone-filled compaction with a thickness of 70 cm and a width of 2.3 m to ensure the safety and stability of the flood control wall type enclosure.

[0045] In this embodiment, it further includes a first construction groove and a second construction groove from top to bottom. The first construction groove is an inverted isosceles trapezoid, and the second construction groove is a rectangle. The stone-filled compaction layer 9 is arranged in the second construction groove, and the cushion layer 8 and the base 3 are arranged in the first construction groove.

[0046] Specifically, the cushion layer 8, the base 3 and the stone-filled compaction layer 9 are arranged through the first construction groove and the second construction groove, and it can be backfilled and tamped after construction.

[0047] In this embodiment, the excavation slope ratio of the first construction groove is 1:2.

[0048] Specifically, the construction is facilitated by a suitable slope ratio.

[0049] In this embodiment, both ends of the column 6 are exposed outside the decorative layer.

[0050] Specifically, the thickness of the column 6 is greater than the thickness of the flood control wall 4, assisting in supporting the stability of the flood control wall 4.

[0051] In this embodiment, a settlement observation point 10 is further provided at the top of the flood control wall 4.

[0052] Specifically, the settlement observation point 10 is used to observe whether the flood control wall 4 undergoes settlement or displacement deformation.

[0053] The present utility model further provides a two - stage retaining wall structure, including:

[0054] A first - stage retaining wall 1, with backfill 2 arranged on the water - far side of the first - stage retaining wall 1;

[0055] The above - mentioned second - stage retaining wall is arranged in parallel in the backfill 2 on the water - far side of the first - stage retaining wall 1. A green belt or a waterfront walkway is arranged between the second - stage retaining wall and the first - stage retaining wall 1.

[0056] Specifically, the upper end of the backfill 2 is flush with the upper end of the first - stage retaining wall 1. A waterfront walkway, a green lawn, fitness facilities, etc. can be arranged according to local conditions between the second - stage retaining wall and the first - stage retaining wall 1 according to the size of the hinterland to meet the production and living needs of the people. The first - stage retaining wall 1 is for daily use, and the second - stage retaining wall is for flood control. The second - stage retaining wall not only increases the flood - control elevation but also increases the river width.

[0057] When a second - stage retaining wall in this embodiment is in use, taking the riverside use as an example, the water - far side of the first - stage retaining wall 1 is filled with backfill 2. A first construction trench and a second construction trench are constructed in the backfill 2. A stone - filled compaction layer 9 is constructed in the second construction trench to make the stone - filled compaction layer 9 fill the second construction layer. Then, a cushion layer 8 and a base layer are successively constructed in the first construction layer, and then the flood control wall 4 is constructed.

[0058] This revetment type makes full use of the existing retaining wall. By meeting the flood - control standards with the second - stage retaining wall, large - scale excavation of the wall can be avoided, and the damage to the existing buildings or the hinterland greening can be reduced to a large extent. It can not only meet the water - conservancy flood - control function but also effectively isolate the private space from the public area. The construction is convenient, the structural stability is good, the reliability is high, it takes into account a certain ecological landscape effect, and it has good coordination with the surrounding environment.

[0059] The above has described the embodiments of the present utility model. The above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes are obvious to those of ordinary skill in the art in the technical field without departing from the scope and spirit of the described embodiments.

Claims

1. A secondary retaining wall, characterized in that: include: A base portion, wherein the base portion is buried at a far water side of the primary retaining wall; A flood wall, wherein the flood wall is arranged on the top of the base portion, the upper end of the flood wall is exposed on the ground, and the exposed end of the flood wall is provided with a finishing surface; A plurality of columns are arranged at intervals along the axis of the flood wall, a guardrail is arranged between two adjacent columns, and the guardrail is arranged at the top of the flood wall.

2. The secondary retaining wall according to claim 1, characterized in that: The vertical projection of the flood protection wall is located within the vertical projection of the base.

3. The secondary retaining wall according to claim 1, characterized in that: A cushion layer and a riprap layer are sequentially arranged at the lower end of the base.

4. The secondary retaining wall according to claim 3, characterized in that: The base, the cushion layer and the riprap layer form a step-like structure.

5. The secondary retaining wall according to claim 3, characterized in that: The cushion layer is a C25 plain concrete cushion layer.

6. The secondary retaining wall according to claim 3, characterized in that: It also includes a first construction groove and a second construction groove from top to bottom, the first construction groove is an inverted isosceles trapezoid, the second construction groove is a rectangle, the riprap layer is arranged in the second construction groove, and the cushion layer and the base are arranged in the first construction groove.

7. The secondary retaining wall according to claim 6, characterized in that: The excavation slope ratio of the first construction trench is 1:

2.

8. The secondary retaining wall according to claim 1, characterized in that: Both ends of the column are exposed on the modified surface.

9. The secondary retaining wall according to claim 1, characterized in that: A settlement observation point is also arranged on the top of the flood wall.

10. A two-stage retaining wall structure, characterized in that: include: A primary retaining wall, wherein a fill is provided on the far side of the primary retaining wall; According to the secondary retaining wall described in any one of claims 1 to 9, the secondary retaining wall is arranged in parallel in the fill on the far water side of the primary retaining wall, and a green belt or a waterfront trail is arranged between the secondary retaining wall and the primary retaining wall.

Images