CN219909051U - Assembled gravity retaining wall structure - Google Patents
Assembled gravity retaining wall structure Download PDFInfo
- Publication number
- CN219909051U CN219909051U CN202321164496.7U CN202321164496U CN219909051U CN 219909051 U CN219909051 U CN 219909051U CN 202321164496 U CN202321164496 U CN 202321164496U CN 219909051 U CN219909051 U CN 219909051U
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- standard unit
- retaining wall
- prefabricated concrete
- concrete standard
- block
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- 230000005484 gravity Effects 0.000 title claims abstract description 39
- 239000004567 concrete Substances 0.000 claims abstract description 71
- 239000004575 stone Substances 0.000 claims abstract description 16
- 239000004927 clay Substances 0.000 claims abstract description 12
- 239000004744 fabric Substances 0.000 claims abstract description 8
- 238000011065 in-situ storage Methods 0.000 claims abstract description 8
- 239000011178 precast concrete Substances 0.000 claims description 28
- 238000010276 construction Methods 0.000 description 10
- 239000002689 soil Substances 0.000 description 8
- 230000010261 cell growth Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000009412 basement excavation Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000004746 geotextile Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000009991 scouring Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012876 topography Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/60—Planning or developing urban green infrastructure
Abstract
The utility model discloses an assembled gravity retaining wall structure, which comprises a gravity retaining wall skeleton formed by assembling prefabricated concrete standard unit hollow blocks and prefabricated concrete standard unit expansion blocks, wherein the prefabricated concrete is provided with a prefabricated concrete top unit hollow block, a cast-in-situ concrete foundation slab, a graded broken stone backfill area, clay backfill area, geotechnical cloth, a drainage ditch and a drainage pipe, wherein geotechnical cloth is arranged at the juncture of the graded broken stone backfill area, the clay backfill area and the original side slope, and the drainage pipe is arranged in a bottom unit block.
Description
Technical Field
The utility model belongs to the technical field of building and slope protection, and particularly relates to an assembled gravity retaining wall structure.
Background
The retaining wall is a structure for preventing soil from collapsing, and is widely applied to the fields of house construction, municipal administration, water conservancy, traffic and the like, and is used for protecting general construction sites, river levees and road roadbeds. At present, most retaining walls adopt a slurry masonry structure, a dry masonry structure and a cast-in-place concrete structure, wherein the cost input of manpower, materials, machinery and the like is high, the procedures are complex and various, the construction period is long, the construction efficiency is low, the pollution is serious, and the peripheral disturbance of the construction is large. With the increase of economy and the advancement of society, the traditional retaining wall structure has difficulty in meeting the requirements of the current society on construction efficiency and environmental protection.
At present, the assembled gravity retaining wall structure is a novel retaining structure for slope treatment, is convenient to install, small in occupied area, can effectively prevent soil collapse and ensure slope safety through optimizing the cross section size of the retaining wall, and is particularly suitable for places with narrow topography and limited excavation space. The structure utilizes the interlocking quality of the precast concrete blocks and the precast concrete expansion blocks to effectively resist the extrusion of soil load after the retaining wall, so that the integral retaining wall structure achieves self-balance. The assembled gravity retaining wall structure is used as a passive bearing retaining structure, under the condition of being extruded by soil, the bearing retaining effect can be effectively achieved, and the gravity retaining wall skeleton structure formed by assembling the prefabricated concrete standard unit hollow building blocks and the prefabricated concrete standard unit expansion blocks is more reasonable in overall stress, and optimization design is also focused on the sizes of all parts in the structural design stage, so that internal force distribution of the structure is more reasonable. But also can save the material consumption, save the construction time, reduce the excavation area and greatly save the whole cost. Meanwhile, the stability of the side slope is improved, and a certain attractive effect is achieved.
Disclosure of Invention
Aiming at the defects of the prior art, the utility model provides an assembled gravity retaining wall structure for solving the problems in the background art.
In order to achieve the above purpose, the utility model is realized by the following technical scheme: the utility model provides an assembled gravity retaining wall structure, includes the gravity retaining wall skeleton that is assembled by precast concrete standard unit hollow block and precast concrete standard unit expansion piece, precast concrete top unit hollow block, cast-in-place concrete foundation slab, graded broken stone backfill district, clay backfill district, geotechnique's cloth, escape canal, drain pipe, graded broken stone backfill district and clay backfill district and with original side slope juncture set up geotechnique's cloth, place a drain pipe in the unit block of bottom.
Preferably, the prefabricated concrete standard unit hollow building block is in a hollow cuboid concrete prefabricated unit component, a U-shaped notch is formed in the upper portion of the prefabricated concrete standard unit hollow building block, a notch connected with the prefabricated concrete standard unit expansion block is formed in the side edge of the prefabricated concrete standard unit hollow building block, tenons are arranged on the lower portion of the prefabricated concrete standard unit hollow building block, and two hoisting rings are arranged at the bottom of the U-shaped groove.
Preferably, the prefabricated concrete top unit hollow block has the same lower structure as the prefabricated concrete standard unit hollow block, and the upper part is in a half-open form and is provided with two hoisting rings.
Preferably, the prefabricated concrete standard unit expansion block is a T-shaped concrete prefabricated component, two ends of the prefabricated concrete standard unit expansion block are provided with a tenon and a notch, the tenon and the notch correspond to the notch of the prefabricated concrete standard unit hollow block in size and are attached to the back surface of the prefabricated concrete standard unit hollow block to form an interlocking extension component, the standard length is 0.6 m, 0.8 m, 1.0 m and 1.2m, and the height of the interlocking extension component is consistent with that of the connected prefabricated concrete standard unit hollow block.
Preferably, the notch of the prefabricated concrete standard unit hollow block and the tenon of the prefabricated concrete standard unit expansion block are assembled and clamped to form a gravity retaining wall skeleton, the gravity retaining wall skeleton is assembled layer by layer upwards, and two adjacent layers of the gravity retaining wall skeleton are arranged in a staggered mode at the joint positions to form a gravity retaining wall; the second precast concrete standard unit hollow building blocks from the top surface to below the top are clay backfill areas, and the grading broken stone backfill areas are below the second precast concrete standard unit building blocks from below the top.
Preferably, the top and the bottom of the gravity type retaining wall framework are respectively provided with a drainage ditch, and the bottom of the gravity type retaining wall framework is provided with a cast-in-situ concrete foundation slab.
The utility model provides an assembled gravity retaining wall structure, which has the following beneficial effects:
the main body of the utility model consists of a gravity type retaining wall skeleton structure and graded broken stone backfill areas, and the whole body is stressed together, so that the bearing capacity is high; the gravity type retaining wall skeleton is assembled by prefabricated concrete standard unit hollow blocks and prefabricated concrete standard unit expansion blocks, has fewer categories and simple forms, and is simple and convenient to assemble in factories and on site; the hollow blocks of the precast concrete standard units and the expansion blocks of the precast concrete standard units are mutually locked through tenons and notches, so that the reliability of the joints is improved; the broken stone and clay backfill are adopted above the ground to replace the traditional cast-in-place concrete, so that the cost of materials, manpower, machinery and the like is greatly saved, the manufacturing cost is reduced, the construction efficiency is improved, the construction period is shortened, and only the concrete foundation slab and the capping beam are cast in situ, so that the concrete foundation slab and the capping beam are more environment-friendly; in addition, the device can be flexibly arranged according to the side slope condition, can be arranged along a straight line or a curve, and has wider application range.
Drawings
FIG. 1 is a cross-sectional view of the present utility model;
FIG. 2 is a plan view of a precast concrete standard cell hollow block preform;
FIG. 3 is a schematic cross-sectional view of a precast concrete standard cell hollow block preform;
fig. 4 is a plan view of a precast concrete top unit hollow block preform;
fig. 5 is a schematic cross-sectional view of a precast concrete roof unit hollow block preform;
FIG. 6 is a plan view of a precast concrete standard cell expansion block preform;
FIG. 7 is a schematic cross-sectional view of a precast concrete standard cell expansion block;
FIG. 8 is a schematic view of a precast concrete standard cell expansion block precast element;
fig. 9 is a schematic diagram of the connection of the prefabricated concrete standard unit hollow block and the prefabricated concrete standard unit expansion block in a linear arrangement.
Fig. 10 is a schematic diagram showing the curve arrangement and connection of the prefabricated concrete standard unit hollow block and the prefabricated concrete standard unit expansion block.
In the figure: 1. prefabricating concrete standard unit hollow building blocks; 2. precast concrete top unit hollow blocks; 3. precast concrete standard unit expansion blocks; 4. a drain pipe; 5. cast-in-situ concrete foundation slab; 6. grading crushed stone backfill areas; 7. clay backfill area; 8. geotextile; 9. a drainage ditch; 10. the unit hollow block prefabricated member bottom tenon; 11. a hanging ring; 12. a hollow block prefabricated part notch; 13. a tenon at the bottom of the hollow block; 14. expanding a block prefabricated member tenon; 15. expanding the notch of the prefabricated member.
Detailed Description
Embodiments of the present utility model are described in further detail below with reference to the accompanying drawings and examples. The following examples are illustrative of the utility model but are not intended to limit the scope of the utility model.
In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front," "rear," "head," "tail," and the like are used as an orientation or positional relationship based on that shown in the drawings, merely to facilitate description of the utility model and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the utility model. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "connected," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
Referring to fig. 1 to 7, the present utility model provides a technical solution: the assembled gravity retaining wall structure comprises prefabricated concrete standard unit hollow blocks 1, prefabricated concrete top unit hollow blocks 2, prefabricated concrete standard unit expansion blocks 3, a drain pipe 4, a cast-in-situ concrete foundation slab 5, a graded broken stone backfill area 6, a clay backfill area 7, geotechnical cloth 8, a drain ditch 9, unit hollow block prefabricated member bottom tenons 10, hanging rings 11, hollow block prefabricated member rabbets 12, hollow block bottom tenons 13, expansion block prefabricated member rabbets 14 and expansion block prefabricated member rabbet 15.
As shown in fig. 2, the prefabricated concrete standard unit hollow block 1 is provided with a U-shaped notch at the upper part, a notch connected with the prefabricated concrete standard unit expansion block 3 is arranged at the side edge, a tenon is arranged at the lower part, and two lifting rings are arranged at the bottom of the U-shaped groove. When in installation, the tenon is inserted into the U-shaped notch of the precast concrete standard unit hollow block 1 below the tenon insertion port, and the cross section size of the notch end is properly enlarged.
The precast concrete top unit hollow block 2 shown in fig. 3 has a half-open form at the upper part and two hanging rings are provided. During installation, the hollow block 1U-shaped notch of the precast concrete standard unit below the tenon inserting opening is clamped. The cross-sectional dimensions of the ends of the slot are suitably enlarged.
The gravity retaining wall skeleton structure formed by connecting the precast concrete standard unit hollow block 1 and the precast concrete standard unit expansion block 3 is shown in fig. 4-5, wherein a tenon and a notch are arranged at two ends of the precast concrete standard unit expansion block 3, the tenon and the notch correspond to the notch of the precast concrete standard unit hollow block 1 in size and are attached to the back surface of the precast concrete standard unit hollow block 1 to form an interlocking extension member.
The second prefabricated standard unit hollow building block from the top surface to below the top is a clay backfill area 7, the middle part is a graded broken stone backfill area 6, and the size and the grain diameter of the backfill broken stone are not less than 20mm.
The diameter of the drain pipe 4 is not preferably smaller than 150.
The assembled gravity retaining wall structure integrally adopts an inclined retaining wall structure, and the wall gradient is 1:0.1-0.25.
The top and the bottom of the gravity type retaining wall framework are respectively provided with a drainage ditch 9, so that the scouring effect of rainwater on the soil body at the top and the bottom of the retaining wall is reduced.
The embedded depth of the cast-in-situ concrete foundation slab 5 is 0.5m.
The implementation method of the utility model is as follows:
pouring a concrete foundation slab and a bottom drainage ditch 9 in the excavated foundation pit foundation trench, after the concrete foundation slab reaches the strength required by design, arranging a hollow block prefabricated member notch 12 of a first layer of prefabricated concrete standard unit hollow building blocks 1 and an expansion block prefabricated member tenon 14 of a prefabricated concrete standard unit expansion block to assemble and clamp a gravity retaining wall skeleton, assembling and clamping the expansion block prefabricated member tenon 14 at the rear end of the gravity retaining wall skeleton and the expansion block prefabricated member tenon 14 of another prefabricated concrete standard unit expansion block, sequentially installing prefabricated members, backfilling graded broken stone after the first layer of installation is completed, compacting, paving a layer of geotechnical cloth 8 at the juncture of a soil slope and a retaining wall, and embedding a drainage pipe 4 in the U-shaped notch of the concrete prefabricated standard unit hollow building blocks; continuously assembling a layer of gravity type retaining wall skeleton according to the steps, repeating the operation until the last two layers of gravity type retaining wall skeleton are installed, backfilling with cohesive soil, and compacting; paving a layer of geotextile 8 at the junction of graded broken stone and cohesive soil backfill;
after the construction is carried out to the designed elevation, a drainage ditch 9 is arranged at the top of the retaining wall.
The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.
Claims (6)
1. An assembled gravity retaining wall structure, its characterized in that: the gravity type retaining wall framework is formed by assembling prefabricated concrete standard unit hollow building blocks (1) and prefabricated concrete standard unit expansion blocks (3), the prefabricated concrete top unit hollow building blocks (2), a cast-in-situ concrete foundation slab (5), graded broken stone backfill areas (6), clay backfill areas (7), geotechnical cloth (8), drainage ditches (9) and drainage pipes (4), the graded broken stone backfill areas (6), the clay backfill areas (7) and the junctions with original slopes are provided with geotechnical cloth (8), and one drainage pipe (4) is placed in the bottom unit building blocks.
2. A fabricated gravity retaining wall structure according to claim 1, wherein: the prefabricated concrete standard unit hollow building block (1) is in the shape of a hollowed cuboid concrete prefabricated unit component, a U-shaped notch is formed in the upper portion of the prefabricated concrete standard unit hollow building block, a notch connected with a prefabricated concrete standard unit expansion block is formed in the side edge of the prefabricated concrete standard unit hollow building block, tenons are arranged on the lower portion of the prefabricated concrete standard unit hollow building block, and two hoisting rings are arranged at the bottom of the U-shaped groove.
3. A fabricated gravity retaining wall structure according to claim 1, wherein: the prefabricated concrete top unit hollow building block (2) has the same lower structure as the prefabricated concrete standard unit hollow building block (1), and the upper part is in a half-opening form and is provided with two hoisting rings.
4. A fabricated gravity retaining wall structure according to claim 1, wherein: the prefabricated concrete standard unit expansion block (3) is a T-shaped concrete prefabricated component, two ends of the prefabricated concrete standard unit expansion block are provided with a tenon and a notch, the tenon and the notch correspond to the notch of the prefabricated concrete standard unit hollow block (1) in size, the tenon and the notch are attached to the back surface of the prefabricated concrete standard unit hollow block (1) to form an interlocked extension component, the standard length is 0.6 m, 0.8 m, 1.0 m and 1.2m, and the height of the extension component is consistent with that of the connected prefabricated concrete standard unit hollow block (1).
5. A fabricated gravity retaining wall structure according to claim 1, wherein: the notch of the prefabricated concrete standard unit hollow building block (1) and the tenon of the prefabricated concrete standard unit expansion block (3) are assembled and clamped to form a gravity retaining wall skeleton, the gravity retaining wall skeleton is assembled layer by layer upwards, and two adjacent layers are staggered and placed at the joint positions to form a gravity retaining wall; the second precast concrete standard unit hollow building block (1) from the top surface to below the top is a clay backfill area (7), and the second precast concrete standard unit hollow building block below the top is a graded broken stone backfill area (6).
6. The fabricated gravity retaining wall structure according to claim 5, wherein: drainage ditches (9) are arranged at the top and the bottom of the gravity type retaining wall framework, and a cast-in-situ concrete foundation slab (5) is arranged at the bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321164496.7U CN219909051U (en) | 2023-05-15 | 2023-05-15 | Assembled gravity retaining wall structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321164496.7U CN219909051U (en) | 2023-05-15 | 2023-05-15 | Assembled gravity retaining wall structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219909051U true CN219909051U (en) | 2023-10-27 |
Family
ID=88438263
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321164496.7U Active CN219909051U (en) | 2023-05-15 | 2023-05-15 | Assembled gravity retaining wall structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219909051U (en) |
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2023
- 2023-05-15 CN CN202321164496.7U patent/CN219909051U/en active Active
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