CN113481773A - Highway subgrade settlement-prevention structure - Google Patents
Highway subgrade settlement-prevention structure Download PDFInfo
- Publication number
- CN113481773A CN113481773A CN202110608985.6A CN202110608985A CN113481773A CN 113481773 A CN113481773 A CN 113481773A CN 202110608985 A CN202110608985 A CN 202110608985A CN 113481773 A CN113481773 A CN 113481773A
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- China
- Prior art keywords
- settlement
- plate
- layer
- bracing piece
- highway subgrade
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- Pending
Links
- 230000007246 mechanism Effects 0.000 claims abstract description 23
- 239000004576 sand Substances 0.000 claims description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 21
- 238000004062 sedimentation Methods 0.000 claims description 15
- 238000009434 installation Methods 0.000 claims description 2
- 238000012856 packing Methods 0.000 claims description 2
- 239000010410 layer Substances 0.000 description 56
- 239000010426 asphalt Substances 0.000 description 3
- 239000004575 stone Substances 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 206010039203 Road traffic accident Diseases 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 230000003137 locomotive effect Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C3/00—Foundations for pavings
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C3/00—Foundations for pavings
- E01C3/04—Foundations produced by soil stabilisation
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Road Paving Structures (AREA)
Abstract
The invention provides a highway subgrade settlement-preventing structure, which comprises: subside the board and subside the mechanism, it is used for the bearing to subside the mechanism subside the board, it is used for bearing road bed layer to subside the board, it includes the bracing piece group to subside the mechanism, the bracing piece group is including first bracing piece and second bracing piece, first bracing piece with the one end of second bracing piece is close to, and the other end separates to form the contained angle, first bracing piece with the one end that the second bracing piece is close to supports subside the board. According to the highway subgrade anti-settlement structure provided by the invention, the subgrade is supported by adopting the settlement plate, the settlement mechanism is arranged below the settlement plate, and the subgrade is better supported by the first support rod and the second support rod with included angles.
Description
Technical Field
The invention relates to the technical field of highway construction, in particular to a highway subgrade anti-settlement structure.
Background
The roadbed is a foundation of a track or a road surface and is a geotechnical structure formed by excavation or filling, the main function of the roadbed is to provide necessary conditions for track or road surface laying and train or driving operation, bear static load and dynamic load of the track and locomotive or road surface and traffic load, transmit and diffuse the load to the deep part of the foundation, and the roadbed is easy to generate settlement after long-term use, so that the road surface is rugged, the driving is influenced in serious cases, and even traffic accidents occur, so that a settlement-preventing facility and a construction process for the roadbed are needed.
The prior highway subgrade anti-settlement facility has the following defects:
when the existing highway subgrade anti-settlement facility carries out anti-settlement, the anti-settlement structure is independent, and the phenomenon of offset displacement is easy to occur.
Disclosure of Invention
The invention provides a highway subgrade anti-settlement structure, which is used for solving the defects that the subgrade anti-settlement arrangement in the prior art is an independent structure and is easy to deviate and shift.
The invention provides a highway subgrade settlement-preventing structure, which comprises: the sedimentation plate is used for supporting the sedimentation plate, the sedimentation plate is used for supporting a roadbed layer,
subside the mechanism and include the bracing piece group, the bracing piece group includes first bracing piece and second bracing piece, first bracing piece with the one end of second bracing piece is close to, and the other end separates to form the contained angle, first bracing piece with the one end that the second bracing piece is close to supports subside the board.
According to the highway subgrade anti-settlement structure provided by the invention, the support rod groups are arranged below the settlement plate in rows and columns at equal intervals.
According to the highway subgrade anti-settlement structure provided by the invention, the settlement mechanism comprises a connecting plate, the connecting plate is used for connecting one end of the first supporting rod, which is close to the second supporting rod,
the connecting plate is connected with the settlement plate.
According to the highway subgrade anti-settlement structure provided by the invention, the settlement mechanism comprises a limiting plate, and the limiting plate is connected to one end of the first supporting rod, which is separated from the second supporting rod.
According to the highway subgrade anti-settlement structure provided by the invention, the settlement mechanism comprises a positioning plate, the positioning plate is used for limiting the angle of the included angle between the first supporting rod and the second supporting rod,
the positioning plate is connected with the limiting plate.
The highway subgrade anti-settlement structure provided by the invention also comprises a sand stone layer which is arranged above the roadbed layer,
the gravel and sand layer includes filter, baffle and gravel and sand, the filter is along length direction parallel distribution, the equidistant installation of baffle is parallel between the filter, the filter with the regional packing that the baffle encloses gravel and sand.
According to the highway subgrade anti-settlement structure provided by the invention, a first waterproof layer is arranged between the gravel layer and the roadbed layer.
According to the highway subgrade settlement-preventing structure provided by the invention, the water tanks are arranged below two sides of the filter plate and are connected with the first waterproof layer.
According to the highway subgrade anti-settlement structure provided by the invention, the groove edge of one side of the water tank close to the first waterproof layer is provided with an inclination angle for drainage.
According to the highway subgrade anti-settlement structure provided by the invention, a second waterproof layer is arranged between the roadbed layer and the settlement plate.
According to the highway subgrade anti-settlement structure provided by the invention, the subgrade is supported by adopting the settlement plate, the settlement mechanism is arranged below the settlement plate, and the subgrade is better supported by the first support rod and the second support rod with included angles.
Drawings
In order to more clearly illustrate the technical solutions of the present invention or the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic overall structure view of a highway subgrade settlement-preventing structure provided by the invention;
fig. 2 is a schematic structural view of a settlement mechanism of the highway subgrade settlement-preventing structure provided by the invention;
FIG. 3 is a schematic structural diagram of a support rod assembly of the anti-settling structure of the highway subgrade provided by the invention;
FIG. 4 is a schematic diagram of a sand-rock layer structure of a highway subgrade settlement-proof structure provided by the invention;
reference numerals:
100: a sedimentation mechanism; 110: a set of support rods; 101: a first support bar;
102: a second support bar; 103: a connecting plate; 104: a limiting plate;
105: positioning a plate; 111: a first shaft; 112: a second shaft;
200: a settlement plate; 201: a roadbed layer; 202: a first waterproof layer;
203: a second waterproof layer; 204: a wear layer; 205: a pavement layer;
210: a sandstone layer; 211 a filter plate; 212: a baffle plate;
213: sand and stone; 214: a water tank; 215: a groove edge;
120: a base.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the embodiments of the present invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of describing the embodiments of the present invention and simplifying the description, but do not indicate or imply that the referred devices or elements must have a specific orientation, be configured in a specific orientation, and operate, and thus, should not be construed as limiting the embodiments of the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the embodiments of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the terms "connected" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. Specific meanings of the above terms in the embodiments of the present invention can be understood in specific cases by those of ordinary skill in the art.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of an embodiment of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
An embodiment of the present invention will be described below with reference to fig. 1 to 4. It is to be understood that the following description is only exemplary embodiments of the present invention and is not intended to limit the present invention.
As shown in fig. 1, the present invention provides a highway subgrade anti-settlement structure, comprising: the sedimentation plate 200 and the sedimentation mechanism 100, the sedimentation mechanism 100 is used for supporting the sedimentation plate 200, and the sedimentation plate 200 is used for supporting the roadbed 201.
The settling mechanism 100 comprises a supporting rod set 110, the supporting rod set 110 comprises a first supporting rod 101 and a second supporting rod 102, the first supporting rod 101 is close to one end of the second supporting rod 102, the other end of the first supporting rod 101 is separated from the other end of the second supporting rod 102, so that an included angle is formed, and the settling plate 200 is supported by the end, close to the first supporting rod 101, of the second supporting rod 102.
The first support rod 101 and the second support rod 102 support and fix the settlement plate, so that the settlement prevention effect on the roadbed layer 201 is achieved.
Further, in one embodiment of the present invention, the groups of support rods 110 are arranged in equally spaced rows and columns below the settling plate 200. The settling plate 200 is uniformly stressed.
In an alternative embodiment of the invention, as shown in fig. 2, the settling mechanism 100 comprises a connecting plate 103, and the connecting plate 103 is used for connecting the ends of the first supporting rod 101 and the second supporting rod 102 close to each other.
Wherein the connecting plate 103 is connected with the settling plate 200.
Specifically, in the present embodiment, both ends of the first support bar 101 and the second support bar 102 are arc-shaped, and the first support bar 101 and the second support bar 102 are symmetrical with respect to the vertical center line of the connecting plate 103.
Furthermore, the angles formed by the first support bar 101, the second support bar 102 and the settlement plate 200 are consistent, so that the settlement plate is stressed uniformly, and the resistance of the highway subgrade is increased.
In another embodiment of the present invention, as shown in fig. 3, the connection plate 103 is connected to the first support bar 101 and the second support bar 102 by a first shaft 111.
In this embodiment, the connection plates 103 are connected to both sides of the first support bar 101 and the second support bar 102.
With continued reference to fig. 2, in another alternative embodiment of the present invention, the sedimentation mechanism 100 comprises a position-limiting plate 104, and the position-limiting plate 104 is connected to the end of the first support bar 101 separated from the second support bar 102.
In other words, the position-limiting plate 104 is connected to the bottom of the first supporting rod 101, and the position-limiting plate 104 is also connected to the bottom of the second supporting rod 102.
Referring to fig. 3, the first and second support rods 101 and 102 are connected to the position limiting plate 104 through the second shaft 112.
It should be understood that the included angle between the first supporting rod 101 and the second supporting rod 102 can be achieved by adjusting the connection between the second shaft 112 and the limiting plate 104 and the connection between the connecting plate 103 and the first shaft 111. Thereby meeting the requirements of fixing the settlement plates and the roadbed at different heights and increasing the practicability
In another alternative embodiment of the present invention, with continued reference to fig. 2, the settling mechanism 100 includes a positioning plate 105, and the positioning plate 105 is used to limit the angle of the included angle between the first supporting bar 101 and the second supporting bar 102.
Wherein, the positioning plate 105 is connected with the limiting plate 104.
As shown in fig. 2, a position restricting plate 104 is attached to one side of the position restricting plate 105 at an equal interval. The positioning plate 105 is arranged perpendicular to the positioning plate 104 in this embodiment.
In the embodiment of the present invention, the distance between two adjacent positioning plates 105 is equal. The height of the limiting plate 104 is equal to that of the locating plate 105. Positioning of the first support bar 101 and the second support bar 102 is facilitated.
As shown in fig. 4, the highway substructure anti-settlement structure in one embodiment of the present invention further includes a gravel layer 210, and the gravel layer 210 is disposed above the roadbed layer 201.
The sand layer 210 comprises filter plates 211, baffles 212 and sand 213, the filter plates 211 are distributed in parallel along the length direction, the baffles 212 are arranged between the parallel filter plates 211 at equal intervals, and the sand 213 is filled in the area enclosed by the filter plates 211 and the baffles 212.
In other words, the filter plates 211 are vertically distributed with the baffle 212. The baffles 212 position the sand 213, so that when the sand 213 contacts with water, the sand 213 can only move between the two baffles 212, thereby reducing the flow of the sand and preventing the sand 213 from running off.
Further, the filter plate 211 includes filter holes.
With continued reference to fig. 4, in an alternative embodiment of the present invention, a first waterproof layer 202 is disposed between gravel 210 and road bed 201.
Further, in an embodiment of the present invention, with continued reference to fig. 4, water tanks 214 are installed below both sides of the filter plate 211, and the water tanks 214 are connected to the first waterproof layer 202.
Wherein, the groove edge 215 of the water groove 214 near the first waterproof layer 202 has an inclination angle for guiding water.
In the actual action process, when rainwater exists in the interior of the gravel layer 210, the rainwater can flow into the interior of the water tank 214 through the filtration of the filter plate 211, so that the condition that the water flows into the roadbed layer 201 is reduced, and the roadbed layer 201 is protected.
In addition, in the embodiment of the present invention, a second waterproof layer 203 is disposed between the roadbed layer 201 and the settlement plate 200.
Specifically, in one embodiment of the present invention, first waterproof layer 202 and second waterproof layer 203 are both formed by mixing modified asphalt and crushed stone. The first waterproof layer 202 and the second waterproof layer 203 have the same thickness and have a waterproof function.
Furthermore, the contact between water and the roadbed layer 201 is reduced, rainwater cannot be accumulated in the roadbed, the roadbed cannot collapse due to rainwater soaking, and the service life is prolonged.
Further, referring to fig. 1, in one embodiment of the present invention, the highway base anti-settlement structure further includes a wear layer 204 and a pavement layer 205 disposed at the bottom of the wear layer 204. Wherein, below the pavement layer 205 is a sand layer 210. The wear-resistant layer 204 can be asphalt, and can resist the damage of wheel load and natural factors to the road surface, thereby effectively ensuring the strength and stability of the road surface, improving the road surface flatness, improving the driving conditions and prolonging the service life of the road surface.
In an embodiment of the present invention, the water tank 214 may also be located at the top of one side of the roadbed layer 201, so as to protect the roadbed layer 201, and reduce the contact between the roadbed layer 201 and rainwater again, and the rainwater may flow out along the water tank 214, so as to keep the interior of the roadbed layer dry, so that the rainwater may not accumulate inside the roadbed, the roadbed may not collapse due to rainwater immersion, and the service life of the roadbed may be prolonged.
With continued reference to fig. 1, in another embodiment of the present invention, the sedimentation mechanism 100 further comprises a base 120, wherein the position limiting plate 104, the positioning plate 105, the first support bar 101 and the second support bar 102 are all disposed on the base 120.
Therefore, in use, the first support bar 101 and the second support bar 102 are installed between the settlement plate 200 and the base 120 to support the road. While the first support bar 101 and the second support bar 102 are arranged obliquely.
When the roadbed subsides downwards, the first support rod 101 and the second support rod 102 are compressed, so that the inclination angles of the first support rod 101 and the second support rod 102 are increased, the first support rod 101 and the second support rod 102 are respectively arranged on two sides of the positioning plate 105, and the positions of the first support rod 101 and the second support rod 102 are matched.
Meanwhile, due to the limiting of the limiting plate 104, the first supporting rod 101 and the second supporting rod 102 on the two sides interact with each other, so that the settlement under the roadbed can be effectively reduced, and the purpose of preventing settlement is achieved.
In summary, when the highway subgrade anti-settlement structure is used, the gravel layer 210 is arranged, and when accumulated water on the road surface is more, the gravel layer 210 can enter the road subgrade along the wear-resistant layer 204 and the road surface layer 205.
When water flows into the gravel layer 210, gravel and sand flow along with rainwater, and the baffles 212 block the gravel and sand 213, so that the gravel and sand 213 only flow between the two baffles 212, and the rainwater between the two baffles 212 flows into the water tank 214 through the filtering of the filter plate 211, thereby reducing the loss of gravel and sand.
Meanwhile, the first waterproof layer 202 and the second waterproof layer 203 are respectively arranged at the top and the bottom of the roadbed layer 201, so that the contact between the roadbed and water is reduced, and the roadbed collapse condition is effectively reduced; by providing the connecting plates 103, the first supporting rod 101 and the second supporting rod 102 are located between the two connecting plates 103.
In use, the first support bar 101 and the second support bar 102 are installed between the settlement plate 200 and the base 120 to support the roadbed, and if the roadbed is settled downwards, the first support bar 101 and the second support bar 102 are compressed to increase the inclination angles of the first support bar 101 and the second support bar 102.
However, the first support rod 101 and the second support rod 102 are respectively disposed on two sides of the positioning plate 105, so that the first support rod 101 and the second support rod 102 on the two sides interact with each other, thereby effectively reducing settlement under a roadbed and achieving the purpose of preventing settlement.
According to the highway subgrade anti-settlement structure provided by the invention, the subgrade is supported by adopting the settlement plate, the settlement mechanism is arranged below the settlement plate, and the subgrade is better supported by the first support rod and the second support rod with included angles.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. The utility model provides a highway subgrade anti-settling structure which characterized in that includes: the sedimentation plate is used for supporting the sedimentation plate, the sedimentation plate is used for supporting a roadbed layer,
subside the mechanism and include the bracing piece group, the bracing piece group includes first bracing piece and second bracing piece, first bracing piece with the one end of second bracing piece is close to, and the other end separates to form the contained angle, first bracing piece with the one end that the second bracing piece is close to supports subside the board.
2. The highway subgrade anti-settlement structure of claim 1, wherein said groups of support rods are arranged in equally spaced rows and columns below said settlement plate.
3. The highway subgrade anti-settlement structure according to claim 1, characterized in that the settlement mechanism comprises a connecting plate for connecting one ends of the first supporting rod and the second supporting rod close to each other,
the connecting plate is connected with the settlement plate.
4. The roadbed settlement preventing structure of claim 1 or 3, wherein the settlement mechanism comprises a limiting plate connected to a separated end of the first support bar and the second support bar.
5. The highway subgrade anti-settlement structure of claim 4, characterized in that the settlement mechanism comprises a positioning plate for limiting the angle of the included angle between the first support bar and the second support bar,
the positioning plate is connected with the limiting plate.
6. The highway subgrade anti-settlement structure according to claim 1, further comprising a gravel layer disposed above said subgrade layer,
the gravel and sand layer includes filter, baffle and gravel and sand, the filter is along length direction parallel distribution, the equidistant installation of baffle is parallel between the filter, the filter with the regional packing that the baffle encloses gravel and sand.
7. The highway subgrade anti-settlement structure according to claim 6, characterized in that a first waterproof layer is arranged between the gravel layer and the roadbed layer.
8. The highway subgrade anti-settlement structure according to claim 7, wherein a water tank is installed below both sides of the filter plate, and the water tank is connected with the first waterproof layer.
9. The roadbed anti-sedimentation structure of claim 8, wherein the side of the water tank adjacent to the first waterproof layer has a groove edge with an inclination angle for guiding water.
10. The highway subgrade anti-settlement structure according to claim 1 or 7, characterized in that a second waterproof layer is arranged between the subgrade layer and the settlement plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110608985.6A CN113481773A (en) | 2021-06-01 | 2021-06-01 | Highway subgrade settlement-prevention structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110608985.6A CN113481773A (en) | 2021-06-01 | 2021-06-01 | Highway subgrade settlement-prevention structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113481773A true CN113481773A (en) | 2021-10-08 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110608985.6A Pending CN113481773A (en) | 2021-06-01 | 2021-06-01 | Highway subgrade settlement-prevention structure |
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| CN (1) | CN113481773A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100719231B1 (en) * | 2006-10-20 | 2007-05-18 | (주) 일신하이텍 | Smooth ground improvement construction |
| JP2015110860A (en) * | 2012-03-27 | 2015-06-18 | 国立大学法人大阪大学 | Floor material and floor structure of road surface in combination with floor material |
| CN207739085U (en) * | 2017-12-26 | 2018-08-17 | 肖丽霞 | A kind of Anti-settling device of highway subgrade |
| CN209836709U (en) * | 2019-04-16 | 2019-12-24 | 驻马店市华中公路设计有限公司 | Prevent subsiding formula highway subgrade |
| CN212582332U (en) * | 2020-05-29 | 2021-02-23 | 广东振河建设工程有限公司 | Municipal works road laying structure |
| CN112425409A (en) * | 2020-10-20 | 2021-03-02 | 肥西县甜园农旅有限公司 | Assembled three-dimensional sightseeing plant cultivation device |
| CN212801056U (en) * | 2020-06-16 | 2021-03-26 | 李志刚 | Highway subgrade settlement-prevention facility |
-
2021
- 2021-06-01 CN CN202110608985.6A patent/CN113481773A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100719231B1 (en) * | 2006-10-20 | 2007-05-18 | (주) 일신하이텍 | Smooth ground improvement construction |
| JP2015110860A (en) * | 2012-03-27 | 2015-06-18 | 国立大学法人大阪大学 | Floor material and floor structure of road surface in combination with floor material |
| CN207739085U (en) * | 2017-12-26 | 2018-08-17 | 肖丽霞 | A kind of Anti-settling device of highway subgrade |
| CN209836709U (en) * | 2019-04-16 | 2019-12-24 | 驻马店市华中公路设计有限公司 | Prevent subsiding formula highway subgrade |
| CN212582332U (en) * | 2020-05-29 | 2021-02-23 | 广东振河建设工程有限公司 | Municipal works road laying structure |
| CN212801056U (en) * | 2020-06-16 | 2021-03-26 | 李志刚 | Highway subgrade settlement-prevention facility |
| CN112425409A (en) * | 2020-10-20 | 2021-03-02 | 肥西县甜园农旅有限公司 | Assembled three-dimensional sightseeing plant cultivation device |
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Application publication date: 20211008 |