CN215165261U - Slope protection structure for hydraulic engineering - Google Patents
Slope protection structure for hydraulic engineering Download PDFInfo
- Publication number
- CN215165261U CN215165261U CN202121534711.9U CN202121534711U CN215165261U CN 215165261 U CN215165261 U CN 215165261U CN 202121534711 U CN202121534711 U CN 202121534711U CN 215165261 U CN215165261 U CN 215165261U
- Authority
- CN
- China
- Prior art keywords
- water
- side slope
- slope
- vertical plate
- cavity
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 131
- 230000001681 protective effect Effects 0.000 claims abstract description 5
- 238000004873 anchoring Methods 0.000 claims description 25
- 239000000945 filler Substances 0.000 claims description 11
- 239000004576 sand Substances 0.000 claims description 6
- 238000004162 soil erosion Methods 0.000 abstract description 6
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000006872 improvement Effects 0.000 abstract description 2
- 239000010985 leather Substances 0.000 abstract description 2
- 239000002689 soil Substances 0.000 description 19
- 230000035699 permeability Effects 0.000 description 11
- 239000002184 metal Substances 0.000 description 5
- 238000006073 displacement reaction Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000009991 scouring Methods 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001012 protector Effects 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
Images
Landscapes
- Revetment (AREA)
Abstract
The utility model provides a side slope protective structure for hydraulic engineering, include: the water collecting tank is arranged at the upper edge of the side slope along the extending direction of the side slope; the water guiding groove is arranged on the side slope and is vertically intersected with the water collecting groove, one end of the water guiding groove is communicated with the water collecting groove, and the other end of the water guiding groove extends into the river channel; the protection units are arranged on the side slope in an even arrangement mode, two adjacent protection units arranged in the arrangement direction of the water guide groove are directly connected together, and the water guide groove is arranged between the two adjacent protection units in the direction perpendicular to the arrangement direction of the water guide groove. The beneficial effects of the utility model reside in that, carry out the emission of rainwater through setting up water catch bowl and guiding gutter, can prevent to flow in the water source of boundary leather and erode the side slope for the water source is discharged into the river course through the guiding gutter after collecing through the water catch bowl, and then can effectual improvement side slope's drainage ability, prevents the rainwater and erodees the side slope, and then can prevent the soil erosion and water loss of side slope effectively.
Description
Technical Field
The utility model relates to a hydraulic engineering technical field particularly, relates to a side slope protective structure for hydraulic engineering.
Background
At present, water conservancy and hydropower are basic industries for national economy and social development. In the process of hydraulic and hydroelectric engineering construction, slope protection devices are required to be arranged on the side slopes on two sides of the river channel so as to ensure that the side slopes cannot suffer from water and soil loss or landslide due to rainwater erosion. But discovery in the use, current side slope protector when using, when suffering rainwater scouring, because the water permeability of side slope can be lower, very easily causes the soil erosion and water loss of side slope to make silt flow into the water source in the river course after the river course pollution river course.
Disclosure of Invention
In view of this, the utility model provides a side slope protective structure for hydraulic engineering aims at solving when carrying out the side slope protection, improves the problem of side slope water permeability to prevent the problem of side slope soil erosion and water loss.
In one aspect, the utility model provides a side slope protective structure for hydraulic engineering, include:
the water collecting tank is arranged at the upper edge of the side slope along the extending direction of the side slope;
the water guiding groove is arranged on the side slope and is vertically intersected with the water collecting groove, one end of the water guiding groove is communicated with the water collecting groove, and the other end of the water guiding groove extends into a river channel;
the protection units are uniformly arranged on the slope, two adjacent protection units arranged along the arrangement direction of the water chute are directly connected together, and the water chute is arranged between two adjacent protection units along the direction vertical to the arrangement direction of the water chute; wherein,
the protection device is characterized in that a first cavity and a second cavity are arranged inside the protection unit, a geocell is arranged in the first cavity, fillers are arranged in the second cavity, anchoring units are arranged at four corners of the first cavity, and the anchoring units are used for being inserted into the side slope so as to fix the protection unit on the side slope.
Further, the protection unit comprises a first vertical plate, a second vertical plate and a third vertical plate, the first vertical plate is arranged along the arrangement direction of the water collecting tank, the second vertical plate is arranged along the arrangement direction of the water guiding tank, the first vertical plate and the second vertical plate are connected with each other to form a square frame, and the third vertical plate is arranged between the second vertical plates to divide the inner space of the square frame into a first cavity and a second cavity.
Furthermore, a plurality of through holes are uniformly formed in the first vertical plate, the second vertical plate and the third vertical plate.
Further, water catch bowl and guiding gutter are the trapezoidal structure of falling, the upper end of water catch bowl is provided with first flange board, first flange board with the upside of first riser passes through the screw connection, the upper end of guiding gutter is provided with second flange board, second flange board with the upside of second riser passes through the screw connection.
Further, the anchoring unit comprises a sleeve and an anchoring piece, the sleeve is arranged at four corners of the first cavity and connected with the side wall of the second vertical plate, the anchoring piece is arranged in the sleeve in a penetrating mode, and the anchoring piece is used for anchoring the protection unit on the side slope.
Furthermore, the upper end of the anchoring piece is provided with a clamping plate, and the clamping plate is used for being clamped with the corner of the first cavity.
Further, the anchoring unit further comprises a connecting plate and an auxiliary rivet, wherein the connecting plate is of an annular structure and is sleeved at the lower end of the sleeve and vertically intersected with the sleeve, and the rivet is arranged on the lower side face of the connecting plate.
Further, the auxiliary rivets are arranged in two rows in an annular arrangement along the circumferential direction of the connecting plate.
Further, the lower side of the water chute is filled with a sand layer.
Further, the filler comprises sand.
Compared with the prior art, the beneficial effects of the utility model reside in that, carry out the emission of rainwater through setting up water catch bowl and guiding gutter, can prevent to flow in the water source of boundary leather and erode the side slope for the water source is discharged into the river course through the guiding gutter after collecing through the water catch bowl, and then can effectual improvement side slope's drainage ability, prevents that the rainwater from erodeing the side slope, and then can prevent the soil erosion and water loss of side slope effectively.
Further, through on the side slope and between sump and guiding gutter the protection unit has been paved, and set up geotechnological check room in the first cavity of protection unit, in order to carry out the vegetation and plant, set up the filler of water permeability in the second cavity of protection unit, through the geotechnological check room that sets up, can cut apart into a plurality of little regions to the soil on side slope upper strata, and, because the through-hole has on the geotechnological check room, certain water permeability has, can make things convenient for slope upper strata soil to carry out the drainage greatly, and simultaneously, through carrying out the vegetation and planting at geotechnological check room, also can prevent the soil erosion and water loss of soil greatly. Simultaneously, through the filler that sets up the water permeability in the second cavity, not through can making the moisture in the soil discharge downwards effectively, can also carry out the drainage operation to can prevent the flow of soil, not only improve the efficiency of permeating water, carry out the filtration at water source effectively, can also prevent the loss of soil and water effectively.
Further, set up the anchor unit through the four corners position at first cavity, will insert through the anchor unit and establish in the side slope to can effectually fix the protection unit on the side slope, not only improve overall structure's stability, can also prevent effectively that displacement from appearing in water catch bowl, guiding gutter and protection unit and leading to whole protection architecture to be destroyed, thereby can carry out the protection of side slope effectively.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:
fig. 1 is a schematic structural view of a slope protection structure for hydraulic engineering according to an embodiment of the present invention;
fig. 2 is a schematic connection diagram of a protection unit according to an embodiment of the present invention;
fig. 3 is a cross-sectional view of a protection unit according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of an anchoring unit according to an embodiment of the present invention;
fig. 5 is a bottom view of the anchoring unit according to the embodiment of the present invention.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art. It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
Referring to fig. 1-2, the embodiment provides a slope protection structure for hydraulic engineering, which includes a water collection tank 2, a water chute 3 and a protection unit 1, wherein the water collection tank 2 is disposed at an upper edge of a slope along an extending direction of the slope, and is fixed at the upper edge of the slope in a buried manner. The water guiding groove 3 is arranged on the side slope, the water guiding groove 3 is perpendicularly intersected with the water collecting groove 2, namely the water guiding groove 3 is laid on the side slope along the inclination of the side slope in a square mode, the water guiding groove 3 is arranged in parallel, the water guiding grooves 3 are communicated with the water collecting groove 2 simultaneously, one end of the water guiding groove 3 is communicated with the water collecting groove 2, the other end of the water guiding groove extends into the river channel, therefore, water flow collected by the water collecting groove 2 is discharged into the river channel, scouring of the water flow flowing to the side slope to the slope surface of the side slope is avoided, and water and soil loss of the slope surface of the side slope is effectively prevented while drainage efficiency is improved.
Specifically, when the water collecting tank 2 is connected with the water guiding tank 3, a plurality of notches are formed in the side wall of the water collecting tank 2, and the water guiding tank 3 is clamped in the notches, so that the water guiding tank 3 is connected with the water collecting tank 2 into a whole after being communicated.
Specifically, as shown in fig. 3, the water guiding chute 3 and the water collecting chute 2 have the same structure, and both the water guiding chute 3 and the water collecting chute 2 have an inverted trapezoidal structure, an open upper end, and a U-shaped cross section. Be provided with two first flange boards in the upper end of water catch bowl 2, first flange board is connected with protection unit 1, and the upper end of guiding gutter 3 is provided with second flange board 32, and second flange board 32 is connected with protection unit 1 to make guiding gutter 3, water catch bowl 2 and protection unit 1 connect as an organic wholely. Preferably, the water chute 3 and the water collecting tank 2 are made by bending galvanized sheets.
It can be seen that the rainwater is discharged through the water collecting grooves 2 and the water guide grooves 3, the water source flowing into the side edge can be prevented from scouring the side slope, the water source is discharged into the river channel through the water guide grooves 3 after being collected through the water collecting grooves 2, the drainage capacity of the side slope can be effectively improved, the side slope is prevented from being scoured by the rainwater, and the water and soil loss of the side slope can be effectively prevented.
Specifically, the protection units 1 are arranged on the side slope in an even arrangement manner, two adjacent protection units 1 arranged along the arrangement direction of the water chute 3 are directly connected together, and the water chute 3 is arranged between two adjacent protection units 1 in the direction perpendicular to the arrangement direction of the water chute 3.
Specifically, the protection unit 1 is a frame structure, and a cavity is disposed inside the frame structure. The protection unit 1 is internally provided with a first cavity 110 and a second cavity 120, a geocell 11 is arranged in the first cavity 110, and the geocell 11 is in a net shape or a honeycomb shape and fills the first cavity 110. The second cavity 120 is provided with a filler 12 having water permeability, and the filler 12 fills the second cavity 120. The filler 12 may be stone such as sand, cobblestone, gravel, etc.
Particularly, through on the side slope and between catch bowl 2 and guiding gutter 3 the protection unit 1 that has paved, and set up geotechnological check room 11 in protection unit 1's first cavity 110, in order to carry out the vegetation and plant, set up filler 12 of water permeability in protection unit 1's second cavity 120, through the geotechnological check room 11 that sets up, can cut apart into a plurality of little regions to the soil on side slope upper strata, and, because the through-hole has on the geotechnological check room 11, certain water permeability has, can make things convenient for side slope upper strata soil to carry out the drainage greatly.
Specifically, a plurality of spaces are formed in the geocell 11, so that vegetation is planted in the spaces, and the soil on the side slope can be effectively protected.
Further, by planting vegetation in the geocell 11, soil erosion can be greatly prevented. Meanwhile, by providing the filler 12 having water permeability in the second cavity 120, water in the soil can be effectively discharged downward without being drained, water filtration can be performed, and the soil can be prevented from flowing, so that not only is the water permeation efficiency improved, but also the water source can be effectively filtered, and the water and soil loss can be effectively prevented.
Specifically, the four corners of the first cavity 110 are provided with the anchoring units 13, and the anchoring units 13 are used for being inserted into the slope to fix the protection unit 1 on the slope.
It can be seen that, through setting up anchor unit 13 in the four corners position of first cavity 110, will insert through anchor unit 13 and establish in the side slope to can effectually fix protection unit 1 on the side slope, not only improve overall structure's stability, can also prevent effectively that displacement from appearing in water catch bowl 2, guiding gutter 3 and protection unit 1 and leading to overall protection structure to be destroyed, thereby can carry out the protection of side slope effectively.
Specifically, the shielding unit 1 includes a first vertical plate 112, a second vertical plate 111, and a third vertical plate 113, and the first vertical plate 112, the second vertical plate 111, and the third vertical plate 113 are disposed in a direction perpendicular to the slope surface. The first vertical plate 112 is disposed along the disposition direction of the water collecting tank 2, that is, the disposition direction of the first vertical plate 112 is perpendicular to the inclination direction of the slope surface. The second vertical plate 111 is disposed along the installation direction of the water chute 3, that is, the installation direction of the second vertical plate 111 coincides with the inclination direction of the slope surface. The two first vertical plates 112 and the two second vertical plates 111 are connected to form a square frame, the third vertical plate 113 is disposed between the two second vertical plates 111 to divide the inner space of the square frame into a first cavity 110 and a second cavity 120, and the sectional area of the first cavity 110 is larger than that of the second cavity 120. Third vertical plate 113 is disposed parallel to two first vertical plates 112, that is, the disposing direction of third vertical plate 113 is the same as that of first vertical plate 112.
Specifically, the first vertical plate 112, the second vertical plate 111, and the third vertical plate 113 are preferably made of a galvanized plate, and the three are connected together by welding, so that the structural stability of the three connected together is improved.
Specifically, a plurality of through holes 1121 are uniformly formed in the first vertical plate 112, the second vertical plate 111 and the third vertical plate 113, so that the first vertical plate 112, the second vertical plate 111 and the third vertical plate 113 have certain water permeability, and further the water permeability of the side slope is improved.
Specifically, the first flange plate is connected to the upper side of the first vertical plate 112 by a screw, the second flange plate 32 is connected to the upper side of the second vertical plate 111 by a screw 31, and the two second flange plates 32 on the second vertical plate 111 are respectively connected to the two adjacent second vertical plates 111.
Specifically, the lower side of the water chute 3 is filled with a sand layer 30. When the water chute 3 is connected with the two adjacent second vertical plates 111, a certain gap is kept between the two second vertical plates 111, and sandy soil is filled between the two second vertical plates 111 to form a sandy soil layer 30, the sandy soil layer can effectively ensure the water permeating and draining performance of the side slope, and can effectively support the water chute 3 to ensure the structural stability and prolong the service life.
Specifically, as shown in fig. 4 and 5, the anchoring unit 13 includes a sleeve 131 and an anchoring member 132, the sleeve 131 is disposed at four corners of the first cavity 110, and the sleeve 131 is connected to a side wall of the second vertical plate 111, and it is also possible that the sleeve 131 is connected to a connection portion of the second vertical plate 111 and the first vertical plate 112, the sleeve 131 is connected to a connection portion of the second vertical plate 111 and the third vertical plate 113, and the sleeve 131 is preferably a metal pipe and is connected and fixed by welding. An anchor member 132 is inserted into the casing 131, and the anchor member 132 is used to anchor the protection unit 1 to the slope. Anchor 132 is preferably a metal rod having a pointed lower end to facilitate insertion into the earth layer of the side slope.
Specifically, the upper end of the anchor 132 is provided with a snap plate 133, and the snap plate 133 is used for being snapped with the corner of the first cavity 110. Clamping plate 133 is preferably circular or square metal plate, is connected with anchor member 132 through the welded mode, can make anchor member 132 insert through the clamping plate 133 that sets up and establish to the slope soil in the back, make clamping plate 133 effectively with first riser 112, second riser 111 and third riser 113 the junction each other carry out the joint spacing, can also fix geocell 11 in the first cavity 110 simultaneously, thereby improve the stability after protection unit 1 fixes.
Specifically, the anchoring unit 13 further includes a connecting plate 134 and an auxiliary rivet 135, the connecting plate 134 is an annular structure which is fitted over the lower end portion of the sleeve 131 and perpendicularly intersects the sleeve 131, and the rivet is provided on the lower side surface of the connecting plate 134. The connecting plate 134 is preferably an annular metal plate, the auxiliary rivet 135 is preferably a metal nail, and the connecting plate 134 and the auxiliary rivet 135 are connected together by welding. The auxiliary rivets 135 are arranged in two rows annularly arranged in the circumferential direction of the connecting plate 134.
It can be seen that the stability of the protection unit after being connected with the side slope can be effectively improved through the connecting plate and the auxiliary rivets, so that the situation of displacement of the protection unit is prevented.
It will be apparent to those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (10)
1. The utility model provides a slope protective structure for hydraulic engineering which characterized in that includes:
the water collecting tank is arranged at the upper edge of the side slope along the extending direction of the side slope;
the water guiding groove is arranged on the side slope and is vertically intersected with the water collecting groove, one end of the water guiding groove is communicated with the water collecting groove, and the other end of the water guiding groove extends into a river channel;
the protection units are uniformly arranged on the slope, two adjacent protection units arranged along the arrangement direction of the water chute are directly connected together, and the water chute is arranged between two adjacent protection units along the direction vertical to the arrangement direction of the water chute; wherein,
the protection device is characterized in that a first cavity and a second cavity are arranged inside the protection unit, a geocell is arranged in the first cavity, fillers are arranged in the second cavity, anchoring units are arranged at four corners of the first cavity, and the anchoring units are used for being inserted into the side slope so as to fix the protection unit on the side slope.
2. The slope protection structure for water conservancy project according to claim 1,
the protection unit comprises a first vertical plate, a second vertical plate and a third vertical plate, the first vertical plate is arranged along the arrangement direction of the water collecting tank, the second vertical plate is arranged along the arrangement direction of the water guiding tank, the first vertical plate and the second vertical plate are connected with each other to form a square frame, and the third vertical plate is arranged between the second vertical plates to divide the inner space of the square frame into a first cavity and a second cavity.
3. The slope protection structure for water conservancy project according to claim 2,
a plurality of through holes are uniformly formed in the first vertical plate, the second vertical plate and the third vertical plate.
4. The slope protection structure for the hydraulic engineering according to claim 2, wherein the water collection tank and the water guide tank are of inverted trapezoid structures, a first flange plate is arranged at the upper end of the water collection tank, the first flange plate is connected with the upper side of the first vertical plate through screws, a second flange plate is arranged at the upper end of the water guide tank, and the second flange plate is connected with the upper side of the second vertical plate through screws.
5. The slope protection structure for water conservancy project according to claim 2,
the anchoring unit comprises a sleeve and anchoring pieces, the sleeve is arranged at four corners of the first cavity and connected with the side wall of the second vertical plate, the anchoring pieces penetrate through the sleeve, and the anchoring pieces are used for anchoring the protection unit on the side slope.
6. The slope protection structure for water conservancy project according to claim 5,
the upper end of the anchoring piece is provided with a clamping plate, and the clamping plate is used for being clamped with the corner of the first cavity.
7. The slope protection structure for water conservancy project according to claim 5,
the anchoring unit further comprises a connecting plate and an auxiliary rivet, the connecting plate is of an annular structure, the connecting plate is sleeved at the lower end of the sleeve and is perpendicularly intersected with the sleeve, and the rivet is arranged on the lower side face of the connecting plate.
8. The slope protection structure for water conservancy project according to claim 7,
the auxiliary rivets are arranged in two rows in an annular mode along the circumferential direction of the connecting plate.
9. The slope protection structure for water conservancy projects according to any one of claims 1 to 8,
the lower side of the water chute is filled with a sand layer.
10. The slope protecting structure for water conservancy projects according to any one of claims 1 to 8, wherein the filler comprises sand.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121534711.9U CN215165261U (en) | 2021-07-07 | 2021-07-07 | Slope protection structure for hydraulic engineering |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121534711.9U CN215165261U (en) | 2021-07-07 | 2021-07-07 | Slope protection structure for hydraulic engineering |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215165261U true CN215165261U (en) | 2021-12-14 |
Family
ID=79395928
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121534711.9U Active CN215165261U (en) | 2021-07-07 | 2021-07-07 | Slope protection structure for hydraulic engineering |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215165261U (en) |
-
2021
- 2021-07-07 CN CN202121534711.9U patent/CN215165261U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108914886B (en) | Mud-rock flow grading energy dissipation guide device | |
| KR100721225B1 (en) | Drainage structure for soft ground treatment and dehydration method | |
| CN213233719U (en) | Drainage structure is cut on slope earth's surface | |
| CN215165261U (en) | Slope protection structure for hydraulic engineering | |
| KR101201544B1 (en) | Underground Penetration Type Side Gutter Assembly | |
| CN215714368U (en) | Water accumulation preventing structure for pavement square | |
| CN214709317U (en) | Ecological compound green structure of side slope | |
| CN214169103U (en) | Steep slope surface reinforcing and greening system | |
| KR20190140231A (en) | Folding-terraced geomat for slope vegetation | |
| CN213173766U (en) | Side slope drainage system | |
| KR100629152B1 (en) | Method and apparatus for earth and sand interception from erosion area | |
| CN210315599U (en) | Slope greening water and soil protection structure | |
| CN210621672U (en) | Water guide plate and drainage plate group | |
| CN210104479U (en) | Landscape road structure that permeates water | |
| CN106894387A (en) | A kind of town and country river course slope protection system and method for paving | |
| CN112695774A (en) | Steep slope surface reinforcing and greening system and construction method thereof | |
| KR100776621B1 (en) | Pile structure for preventing a disaster by debris flow | |
| CN216640132U (en) | Ecological side ditch of urban road design | |
| CN212520245U (en) | Grass planting ditch structure for hydraulic engineering | |
| CN213328905U (en) | Ecological environment-friendly water conservancy bank protection | |
| CN221345612U (en) | Prefabricated supporting component for foundation pit slope | |
| CN214061657U (en) | Ecological grid protection system is restoreed to massif | |
| CN211143089U (en) | Novel ground bank protection device | |
| CN212103899U (en) | Hydraulic engineering slope protection structure | |
| CN212835446U (en) | Highway bank protection |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |