CN112482411A - River course ecological slope protection and construction method thereof - Google Patents
River course ecological slope protection and construction method thereof Download PDFInfo
- Publication number
- CN112482411A CN112482411A CN202011418461.2A CN202011418461A CN112482411A CN 112482411 A CN112482411 A CN 112482411A CN 202011418461 A CN202011418461 A CN 202011418461A CN 112482411 A CN112482411 A CN 112482411A
- Authority
- CN
- China
- Prior art keywords
- hollow prefabricated
- ecological
- soil
- slope
- hollow
- 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.)
- Pending
Links
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/20—Securing of slopes or inclines
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B3/00—Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites; Sealings or joints for engineering works in general
- E02B3/04—Structures or apparatus for, or methods of, protecting banks, coasts, or harbours
- E02B3/12—Revetment of banks, dams, watercourses, or the like, e.g. the sea-floor
Abstract
The invention is suitable for the technical field of artificial riverways, and provides a riverway ecological slope protection and a construction method thereof, wherein the river ecological slope protection comprises the following steps: a slope; a hollow prefabricated part is laid on the slope; the side surface of the hollow prefabricated part is provided with a through hole; the through holes of the two connected hollow prefabricated parts are communicated; the interior of the hollow prefabricated member is filled with a planting base; the planting base at least comprises soil, ceramsite, biochar and plant fiber. According to the invention, through holes are formed in the side surfaces of the hollow prefabricated members, so that the through holes of the two connected hollow prefabricated members are communicated, and the problem that the plants are in flood disasters due to water accumulation in the hollow prefabricated members can be effectively solved; the ceramsite is filled in the hollow prefabricated member, so that the air permeability of the soil can be effectively improved, and the growth level of plants is improved; by filling the biochar and the plant fibers, pollutants which are washed into a river channel by rainwater and surface runoff can be adsorbed, and the water purifying capacity is effectively improved. The invention can restore and improve the river ecological system.
Description
Technical Field
The invention belongs to the technical field of artificial riverways, and particularly relates to a riverway ecological slope protection and a construction method thereof.
Background
The ecological slope protection is a slope protection mode which can not only meet the requirement of stabilizing the surface layer of the side slope, but also recover the damaged natural ecological environment by utilizing the effect of anchoring the plant root system to rock-soil mass to generate the effects of protecting and reinforcing the surface layer of the side slope after the excavation side slope is formed, is an effective slope protection and slope fixation means and is usually used on two sides of a river road.
The traditional ecological slope protection structure is that an ecological concrete precast block is laid on a river channel or a revetment, and suitable plants can be planted in the ecological concrete precast block, so that the purpose of concrete slope protection and plant soil fixation is realized, hardening and greening are perfectly combined, and ecological and attractive requirements are met.
The applicant of the present invention has found that the above technical means has at least the following problems:
the ecological concrete prefabricated blocks are not communicated with each other, and accumulated water in the ecological concrete prefabricated blocks can be discharged only by means of osmosis, so that the root systems of the plants in the ecological concrete prefabricated blocks are immersed in water for a long time in a rainwater-rich season; the air permeability of the soil in the ecological concrete precast block is poor, which is not beneficial to the growth of plants; the planted plants have poor purification capability on the water flowing into the river channel through the revetment, and a large amount of pollutants still exist in the water flowing into the river channel.
Disclosure of Invention
The embodiment of the invention aims to provide a river channel ecological slope protection, and aims to solve the problems in the background art.
The embodiment of the invention is realized in such a way that the ecological river channel protection slope comprises:
a slope;
a hollow prefabricated part is laid on the slope; the side surface of the hollow prefabricated part is provided with a through hole; the through holes of the two connected hollow prefabricated parts are communicated;
the interior of the hollow prefabricated part is filled with a planting base; the planting base at least comprises soil, ceramsite, biochar and plant fiber.
Preferably, the planting base comprises two layers, the upper planting base at least comprises soil and ceramsite, and the lower planting base at least comprises soil, biochar and plant fiber.
Preferably, the soil is the soil of the place where the ecological protection slope of the river is constructed.
Preferably, a grid net for preventing soil loss is laid on the surface of the ecological river protection slope.
Preferably, the hollow prefabricated member is a hexagonal hollow prefabricated member with a hexagonal cross section and a hollow interior; the center positions of six sides of hexagonal hollow prefabricated member all are equipped with the through-hole.
Preferably, the cross section of the hollow part in the hexagonal hollow prefabricated member is hexagonal.
Preferably, the material of the hollow prefabricated member comprises concrete.
Preferably, ecological bank protection in river course still includes:
a platform connected to the ramp;
a water collecting channel for collecting surface runoff is arranged in the platform; macadam for filtering surface runoff is arranged in the water collecting channel; and a permeable layer is arranged below the water collecting channel.
Another object of the embodiments of the present invention is to provide a construction method for ecological river slope protection, including the following steps:
constructing a slope according to a construction drawing;
laying hollow prefabricated members on the slope, and communicating through holes of the two connected hollow prefabricated members;
filling the hollow prefabricated part with a planting base; the planting base at least comprises soil, ceramsite, biochar and plant fiber.
Preferably, the construction drawing is a construction drawing modeled by a BIM technology.
Preferably, the planting base filled in the hollow prefabricated member comprises two layers, the upper planting base at least comprises soil and ceramsite, and the lower planting base at least comprises soil, biochar and plant fiber.
Preferably, the soil is the soil of the place where the ecological protection slope of the river is constructed.
Preferably, the construction method further comprises the following steps:
and laying a grid net for preventing soil loss on the surface of the ecological slope protection of the river channel.
Preferably, the hollow prefabricated member is a hexagonal hollow prefabricated member with a hexagonal cross section and a hollow interior; the center positions of six sides of hexagonal hollow prefabricated member all are equipped with the through-hole.
Preferably, the cross section of the hollow part in the hexagonal hollow prefabricated member is hexagonal.
Preferably, the hollow prefabricated member is made of concrete.
Preferably, the construction method further comprises the following steps:
constructing a platform connected with the slope according to a construction drawing;
a water collecting channel is constructed on the platform, gravels for filtering surface runoff are arranged in the water collecting channel, and permeable layers are arranged on the side surface and the lower part of the water collecting channel.
The embodiment of the invention provides an ecological river protection slope, which comprises: a slope; a hollow prefabricated part is laid on the slope; the side surface of the hollow prefabricated part is provided with a through hole; the through holes of the two connected hollow prefabricated parts are communicated; the interior of the hollow prefabricated part is filled with a planting base; the planting base at least comprises soil, ceramsite, biochar and plant fiber.
Compared with the prior art, the through holes are formed in the side surfaces of the hollow prefabricated members, so that the through holes of the two connected hollow prefabricated members are communicated, and the problem that the plants are in waterlogging due to water accumulated in the hollow prefabricated members can be effectively solved; the ceramsite is filled in the hollow prefabricated member, so that the air permeability of the soil can be effectively improved, and the growth level of plants is improved; by filling the biochar and the plant fibers, pollutants which are washed into a river channel by rainwater and surface runoff can be adsorbed, and the water purifying capacity is effectively improved. The invention can improve the water permeability of the river bank revetment, recover the growth of vegetation, improve the sewage interception capability and the soil fixation effect, and repair and improve the river ecological system.
Drawings
Fig. 1 is a schematic structural view of an ecological river protection slope provided in an embodiment of the present invention;
fig. 2 is a schematic perspective view of an ecological slope protection of a river channel according to an embodiment of the present invention;
FIG. 3 is a schematic structural view of a filling implant in a hollow preform according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a hollow preform provided in an embodiment of the present invention.
In the drawings: 1. a slope; 2. a hollow preform; 3. a platform; 4. a water collecting channel; 5. crushing stone; 6. a water permeable layer; 71. planting the upper layer of the planting base; 72. and (5) planting the lower layer.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Specific implementations of the present invention are described in detail below with reference to specific embodiments.
Example 1
As shown in fig. 1 and 2, an embodiment of the present invention provides an ecological river slope protection, which includes:
a slope 1;
a hollow prefabricated part 2 is laid on the slope 1; the side surface of the hollow prefabricated part 2 is provided with a through hole; the through holes of the two connected hollow prefabricated parts 2 are communicated;
the interior of the hollow prefabricated part 2 is filled with planting base; the planting base at least comprises soil, ceramsite, biochar and plant fiber.
In the embodiment of the invention, proper planting plants can be selected in the planting base according to the place where the ecological revetment of the river channel is located and the local natural environment conditions. When surface runoff on the river bank flows into the water in the river channel through the ecological protection slope of the river channel, the surface runoff firstly enters the hollow prefabricated member 2 on the uppermost layer, and then sequentially flows through the hollow prefabricated members 2 on the lower positions through the through holes in the hollow prefabricated members 2. The ceramsite in the hollow prefabricated member 2 is porous inside and uneven on the surface to form a structure with a high specific surface area, can improve the air permeability of soil after being mixed with the soil, is used as a nutrient carrier to adsorb nutrients and free moisture, improves the growth level of plants, is suitable for the growth and adsorption of microorganisms on the surface of the ceramsite, can effectively form a biological film, and filters the water flowing into the hollow prefabricated member 2. The biochar and plant fibers (such as straws, wood chips and the like) are beneficial to plant growth, and the biochar modified soil has an obvious adsorption effect on pollutants in water. Through the operation, most pollutants can be effectively prevented from entering the river, the plants planted on two sides of the river channel grow well, and the soil fixing effect is obvious.
Compared with the prior art, the through holes are formed in the side surfaces of the hollow prefabricated members 2, so that the through holes of the two connected hollow prefabricated members 2 are communicated, and the problem that the plants are in flood disasters due to water accumulation in the hollow prefabricated members 2 can be effectively solved; the hollow prefabricated member 2 is filled with the ceramsite, so that the air permeability of the soil can be effectively improved, and the growth level of plants is improved; by filling the biochar and the plant fibers, pollutants which are washed into a river channel by rainwater and surface runoff can be adsorbed, and the water purifying capacity is effectively improved. The invention can improve the water permeability of the river bank revetment, recover the growth of vegetation, improve the sewage interception capability and the soil fixation effect, and repair and improve the river ecological system.
As shown in figure 3, as a preferred embodiment of the present invention, the planting base comprises two layers, the upper planting base 71 at least comprises soil and ceramsite, and the lower planting base 72 at least comprises soil, biochar and plant fiber.
Specifically, the upper planting base 71 is a large-particle substance and consists of soil and ceramsite, so that water and soil loss can be effectively prevented, and the air permeability is good; the lower planting base 72 is composed of plant fiber, charcoal, soil and the like, plant growth is facilitated, and the charcoal modified soil has an obvious adsorption effect on pollutants in water. And the plant fiber has certain toughness at the initial stage of slope protection, the planting base and the river channel can be connected into a whole to prevent the loss of the river channel soil, and the plant fiber forms humus soil after rotting and fermenting at the later stage, so that the soil is fertile and water-retaining. In addition, the specific surface area of the upper layer of the filler is large, so that the filler is very suitable for the attachment of microorganisms, and is beneficial to forming a biological film and purifying water quality. The grass seeds can be pre-buried in the planting base in advance, the construction steps are simple and convenient after the grass seeds grow and are formed, and the cost is saved. In addition, other substances can be additionally added into the upper planting base 71 and the lower planting base 72 according to the actual planting situation.
As a preferred embodiment of the invention, the soil is selected from soil at the construction site of the ecological revetment of the river channel.
Specifically, the soil in the place where the ecological slope protection construction of the river channel is selected can provide required elements for plant growth, so that the plants planted in the hollow prefabricated member 2 can adapt to the environment in the hollow prefabricated member 2, and the survival rate of the plants is improved.
As a preferred embodiment of the invention, a grid for preventing soil loss is laid on the surface of the ecological river slope protection.
Specifically, the superficial soil loss is considered in the initial stage, and the smaller grid in aperture is laid on the ecological bank protection top layer in river course, and the grid can be taken away after the plant base chinese herbal medicine grows in later stage cavity prefab 2.
As shown in fig. 4, as a preferred embodiment of the present invention, the hollow preform 2 is a hexagonal hollow preform having a hexagonal cross section and a hollow interior; the center positions of six sides of hexagonal hollow prefabricated member all are equipped with the through-hole.
Specifically, cavity prefab 2 can form cellular river course ecological slope protection structure after making the hexagon when laying, and this structure safety and stability can effectively fix the river course, prevents soil erosion and water loss. The through holes on the six sides of the hollow prefabricated member 2 can enhance the flow and transfer of water between the hollow prefabricated members 2, and the water is prevented from accumulating in the hollow prefabricated member 2 to influence the growth of plants. In fig. 4, (a) is an isometric view of the hollow preform 2, (b) is a top view of the hollow preform 2, and (c) is a side view of the hollow preform 2.
As shown in FIG. 4, the cross section of the inner hollow part of the hexagonal hollow preform is hexagonal, which is a preferred embodiment of the present invention.
Specifically, in order to increase the stability of the ecological slope protection structure of the river channel, the cross section of the hollow part inside the hollow prefabricated member 2 is also made into a hexagon. Of course, the cross-section of the hollow part inside the hollow preform 2 can be made in other shapes, such as square, circular, etc., for other purposes.
In a preferred embodiment of the present invention, the material of the hollow prefabricated member 2 includes concrete.
Specifically, the hollow prefabricated member 2 can be made of various materials, such as concrete material, brick material, etc. The concrete material is preferred to this embodiment, has simple manufacture, low in cost, can realize batch production, does not receive the advantage of restriction such as time, season, place, can promote on a large scale, and later stage operation and maintenance is more convenient.
As shown in fig. 1, as a preferred embodiment of the present invention, the ecological slope protection for river channel further includes:
a platform 3 connected to the ramp 1;
a water collecting channel 4 for collecting surface runoff is arranged in the platform 3; the water collecting channel 4 is internally provided with gravels 5 for filtering surface runoff; a permeable layer 6 is arranged below the water collecting channel 4.
Specifically, surface runoff formed by rainfall is firstly collected in the water collecting channel 4, part of pollutants are primarily filtered by the gravel 5, part of the pollutants permeate underground through the water permeable layer 6, and part of the surface runoff is collected in a river after being filtered by two layers in the river bank protection slope and purified by slope protection plants and microorganisms.
Example 2
An embodiment of the present invention further provides a construction method of an ecological river protection slope, including the following steps:
modeling a construction drawing by adopting a BIM technology;
constructing a platform and a slope according to a construction drawing;
constructing a water collecting channel on the platform, arranging gravels for filtering surface runoff in the water collecting channel, and arranging a permeable layer below the water collecting channel;
laying hollow prefabricated members on the slope, and communicating through holes of the two connected hollow prefabricated members; the hollow prefabricated member is a hexagonal hollow prefabricated member with a hexagonal cross section and a hollow interior, through holes are formed in the center positions of six side faces of the hollow prefabricated member, the cross section of the hollow portion in the hollow prefabricated member is hexagonal, and the hollow prefabricated member is made of concrete;
filling the hollow prefabricated part with a planting base; the planting base at least comprises soil, ceramsite, biochar and plant fiber; the filled planting base comprises two layers, the upper planting base at least comprises soil and ceramsite, and the lower planting base at least comprises soil, biochar and plant fiber; the soil is selected from soil at the site where ecological slope protection construction of the river channel is carried out;
in the initial stage, the surface soil loss is considered, the grid net with smaller aperture is laid on the surface layer of the ecological slope protection of the river channel, and the grid net can be taken away after the grass seeds grow in the planting base in the hollow prefabricated member in the later stage.
Specifically, the ecological river slope protection constructed in the embodiment of the invention has all the advantages of the ecological river slope protection in the embodiment 1, the BIM technology and the design of the ecological river slope protection are combined in the embodiment of the invention, the engineering information is visualized, the design work can be more efficient and faster, the material composition and the structural characteristics of a designed product can be visually displayed, great convenience is brought to the construction and later operation and maintenance of river bank engineering, the market demand is met, and the ecological river slope protection has wide development prospect and market space.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. The utility model provides an ecological bank protection in river course which characterized in that, the ecological bank protection in river course includes:
a slope;
a hollow prefabricated part is laid on the slope; the side surface of the hollow prefabricated part is provided with a through hole; the through holes of the two connected hollow prefabricated parts are communicated;
the interior of the hollow prefabricated part is filled with a planting base; the planting base at least comprises soil, ceramsite, biochar and plant fiber.
2. The ecological revetment for riverway according to claim 1, wherein the planting base comprises two layers, the upper planting base comprises at least soil and ceramsite, and the lower planting base comprises at least soil, charcoal and plant fiber.
3. The ecological river channel slope protection as claimed in claim 2, wherein the soil is selected from soil at the site where the ecological river channel slope protection is constructed.
4. The ecological river channel revetment according to claim 1, wherein a grid for preventing soil loss is laid on the surface of the ecological river channel revetment.
5. The ecological river channel slope protection according to claim 1, wherein the hollow prefabricated member is a hexagonal hollow prefabricated member having a hexagonal cross section and a hollow interior; the center positions of six sides of hexagonal hollow prefabricated member all are equipped with the through-hole.
6. The ecological revetment for riverway according to claim 5, wherein the cross section of the hollow part inside the hexagonal hollow prefabricated member is hexagonal.
7. The ecological river slope protection as claimed in any one of claims 1, 5 and 6, wherein the hollow prefabricated members are made of concrete.
8. The ecological bank protection of river course of claim 1, further comprising:
a platform connected to the ramp;
a water collecting channel for collecting surface runoff is arranged in the platform; macadam for filtering surface runoff is arranged in the water collecting channel; and a permeable layer is arranged below the water collecting channel.
9. The construction method of the ecological river protection slope is characterized by comprising the following steps:
constructing a slope according to a construction drawing;
laying hollow prefabricated members on the slope, and communicating through holes of the two connected hollow prefabricated members;
filling the hollow prefabricated part with a planting base; the planting base at least comprises soil, ceramsite, biochar and plant fiber.
10. The construction method of the ecological river channel revetment according to claim 9, wherein the construction drawing is a construction drawing modeled by a BIM technique.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011418461.2A CN112482411A (en) | 2020-12-07 | 2020-12-07 | River course ecological slope protection and construction method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011418461.2A CN112482411A (en) | 2020-12-07 | 2020-12-07 | River course ecological slope protection and construction method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112482411A true CN112482411A (en) | 2021-03-12 |
Family
ID=74940244
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011418461.2A Pending CN112482411A (en) | 2020-12-07 | 2020-12-07 | River course ecological slope protection and construction method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112482411A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113005995A (en) * | 2021-04-27 | 2021-06-22 | 章丘市黄河水利水电工程有限公司 | River course ecological slope protection and construction method thereof |
| CN113106920A (en) * | 2021-04-09 | 2021-07-13 | 上海友海建设工程有限公司 | River revetment reinforcing construction method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN207537970U (en) * | 2017-12-05 | 2018-06-26 | 湖南恒运建筑科技发展有限公司 | A kind of precast concrete ecology staged bank protection prefabricated component |
| CN108277715A (en) * | 2018-03-12 | 2018-07-13 | 西北农林科技大学 | Road pavement prefabricated component and paving structure for protecting ancient tree and laying method |
| CN110999748A (en) * | 2019-11-28 | 2020-04-14 | 江苏杞林生态环境建设有限公司 | Big tree transplanting method for landscape |
| CN111670718A (en) * | 2020-05-29 | 2020-09-18 | 广东省水利水电科学研究院 | Seepage-storage type vertical greening component and construction method thereof |
-
2020
- 2020-12-07 CN CN202011418461.2A patent/CN112482411A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN207537970U (en) * | 2017-12-05 | 2018-06-26 | 湖南恒运建筑科技发展有限公司 | A kind of precast concrete ecology staged bank protection prefabricated component |
| CN108277715A (en) * | 2018-03-12 | 2018-07-13 | 西北农林科技大学 | Road pavement prefabricated component and paving structure for protecting ancient tree and laying method |
| CN110999748A (en) * | 2019-11-28 | 2020-04-14 | 江苏杞林生态环境建设有限公司 | Big tree transplanting method for landscape |
| CN111670718A (en) * | 2020-05-29 | 2020-09-18 | 广东省水利水电科学研究院 | Seepage-storage type vertical greening component and construction method thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113106920A (en) * | 2021-04-09 | 2021-07-13 | 上海友海建设工程有限公司 | River revetment reinforcing construction method |
| CN113005995A (en) * | 2021-04-27 | 2021-06-22 | 章丘市黄河水利水电工程有限公司 | River course ecological slope protection and construction method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103215920B (en) | Sectored multi-step ecological buffer revetment system | |
| US20230175221A1 (en) | Fluctuation zone state slope protection system that responds to hydrological changes | |
| CN107524116B (en) | Ecological method for hard revetment of river channel | |
| CN102296567B (en) | Soft isolation zone method for slope protection at bank zone and surface source pollution control | |
| CN102011379A (en) | Pollution control method of farmland drainage in plain tidal river network area | |
| CN105986566B (en) | Multifunctional ecological management method for cavernous body | |
| CN111919621B (en) | Cold region habitat recovery-based street tree pool structure and manufacturing method | |
| CN104982249A (en) | Rainwater garden used for green belt in the middle of road | |
| CN112482411A (en) | River course ecological slope protection and construction method thereof | |
| CN102139961A (en) | Multilayer vegetation zone water quality in situ purification method for highly polluted tributary inlet | |
| CN208379724U (en) | The Rain Garden of Collapsible Loess District | |
| CN111087080B (en) | Efficient phosphorus removal ecological ditch aiming at farmland non-point source pollution and paving method thereof | |
| CN210559648U (en) | Step multi-section undercurrent artificial wet land treating pool | |
| CN111622189A (en) | Novel ecological ditch system | |
| CN204741963U (en) | A rainwater garden for greenbelt in middle of road | |
| CN110357267A (en) | Step multistage drowned flow artificial wet land processing pond and its construction method | |
| CN110093826A (en) | A kind of tandem road rain water runoff ecological purification system and its construction method | |
| CN210945029U (en) | Multistage ecological bank protection clean system | |
| CN212358227U (en) | Novel ecological ditch system | |
| CN108301382A (en) | One kind is planted raw purified water type concrete segment | |
| CN209429039U (en) | A kind of ecological revetment with bank pollution of area source purification function | |
| CN108668787B (en) | Ecological reconstruction structure of stereoplasm bank protection | |
| CN112144469A (en) | Bank slope water purification wetland structure combined with ecological revetment | |
| CN104234020A (en) | Pollution control method for farmland drainage in plain tidal river network region | |
| CN101899826B (en) | Method for improving urban degraded soil in coastal regions by constructing artificial section |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Geng Nan Inventor after: Yu Men Inventor after: Zhou Shuhuan Inventor after: Fei Siyi Inventor after: Tong Rumeng Inventor after: Lin Xianda Inventor before: Yu Men Inventor before: Geng Nan Inventor before: Zhou Shuhuan Inventor before: Fei Siyi Inventor before: Tong Rumeng Inventor before: Lin Xianda |