CN111021354A - Composite round bamboo used outdoors and capable of being fixed in soil and manufacturing method thereof - Google Patents
Composite round bamboo used outdoors and capable of being fixed in soil and manufacturing method thereof Download PDFInfo
- Publication number
- CN111021354A CN111021354A CN201911346145.6A CN201911346145A CN111021354A CN 111021354 A CN111021354 A CN 111021354A CN 201911346145 A CN201911346145 A CN 201911346145A CN 111021354 A CN111021354 A CN 111021354A
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- Prior art keywords
- bamboo
- round bamboo
- round
- waterproof
- composite
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Classifications
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/74—Means for anchoring structural elements or bulkheads
- E02D5/80—Ground anchors
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27J—MECHANICAL WORKING OF CANE, CORK, OR SIMILAR MATERIALS
- B27J1/00—Mechanical working of cane or the like
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
- B27K5/00—Treating of wood not provided for in groups B27K1/00, B27K3/00
- B27K5/0085—Thermal treatments, i.e. involving chemical modification of wood at temperatures well over 100°C
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
- B27K5/00—Treating of wood not provided for in groups B27K1/00, B27K3/00
- B27K5/04—Combined bleaching or impregnating and drying of wood
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
- B27K9/00—Chemical or physical treatment of reed, straw, or similar material
- B27K9/002—Cane, bamboo
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H17/00—Fencing, e.g. fences, enclosures, corrals
- E04H17/14—Fences constructed of rigid elements, e.g. with additional wire fillings or with posts
- E04H17/20—Posts therefor
- E04H17/22—Anchoring means therefor, e.g. specially-shaped parts entering the ground; Struts or the like
Abstract
A composite round bamboo used outdoors and capable of being fixed in soil and a manufacturing method thereof comprise (1) high-temperature saturated steam treatment of bamboo; (2) processing the bamboo green layer; (3) drying and processing the round bamboo; (4) and (3) performing ceramic waterproof treatment on the surface layer of the round bamboo. The advantages are that: utilize a bamboo material that has handled at high temperature saturated steam to join in marriage and make column base and top cap, form waterproof hard ceramic resin layer etc. on specific surface, in addition the nutrient substance in the heat treatment bamboo timber destroys, worm and fungus can not survive above that, this novel compound circle bamboo preparation is convenient, low in production cost, protection against insects mould proof, simple to operate is swift, need not concrete pedestal and pour, long service life, a better connected mode is provided for the outdoor bulk use of circle bamboo, this processing method is sustainable circular economy.
Description
Technical Field
The invention relates to a composite round bamboo used outdoors and capable of being fixed in soil and a manufacturing method thereof, belonging to the technical field of bamboo processing and application.
Background
The bamboo wood is used as a biological material and is one of the most environment-friendly and efficient unique building materials, the hollow structure of the bamboo wood cylinder is a wonderful structure formed naturally, the structure accords with the equal-strength design principle in material mechanics, and the bamboo wood cylinder has the characteristics of high strength, good elasticity and small density. The round bamboo is a light and high-strength material due to thin and hollow walls, is used as a building material and a daily handicraft by our ancestors, is commonly used for bamboo fences, vegetable greenhouses and bamboo buildings, and is easy to mildew and rot when contacting the ground due to the fact that the bamboo is used as a biomass material and nutrient substances such as starch and the like exist in thin-wall cells. However, the diameter, roundness and wall thickness of the round bamboo are not regular, no proper connecting piece is provided, the round bamboo is usually buried underground or in concrete when being fixed with the ground, the connection part is easy to decay and damage due to the humidity of the underground, the whole structure cannot be used, so that special materials are needed, the round bamboo can be conveniently combined with bamboo materials, can be contacted with soil or concrete, moisture, decay fungi and the like in the soil or the concrete cannot penetrate through the layer structure, the round bamboo is not easy to decay, and the service life of the round bamboo is prolonged.
Disclosure of Invention
The invention provides a composite round bamboo used outdoors and capable of being fixed in soil and a manufacturing method thereof, aiming at utilizing a hard ceramic protective layer formed on the surface of a bamboo material treated by high-temperature saturated steam to isolate moisture and decay fungi in the soil so as to prolong the service life of the round bamboo outdoors. The composite round bamboo is convenient to manufacture, convenient and fast to use and long in service life, and provides a better connection mode for outdoor mass use of the round bamboo.
The technical solution of the invention is as follows: a composite round bamboo used outdoors and capable of being fixed in soil structurally comprises a top cover 1, a bamboo rod 2, a waterproof ceramic protective layer 3 and a round bamboo column foot 4; wherein the top of the bamboo rod 2 is provided with a top cover 1; the bottom is a tip, the tip is a hollow structure and is provided with a sealing wooden plug, and the sealing wooden plug is a carbonized wooden bar or a bamboo strip treated by high-temperature saturated steam to form a round bamboo column foot 4 with a sealed tip; the outer surface of the composite round bamboo is provided with a waterproof ceramic protective layer 3, the waterproof ceramic protective layer 3 is ceramic resin or fast-forming thermosetting magnesium oxysulfate cement with a polymer cement waterproof layer coated on the surface, and the polymer is polyacrylate latex or polyurethane.
The preparation method comprises the following process steps: (1) performing high-temperature saturated steam treatment on the bamboo wood; (2) processing the bamboo green layer; (3) drying and processing the round bamboo; (4) and (3) performing ceramic waterproof treatment on the surface layer of the round bamboo.
The step (1) is that the bamboo is treated by high-temperature saturated steam: treating the fresh bamboo tube in a pressure tank by high-temperature saturated steam at the temperature of 150-190 ℃ for 6-90 minutes, drying and sawing into required length and size.
The step (2) of processing the bamboo green layer: the outer layer of the round bamboo to be coated with the waterproof ceramic protective layer 3 is removed by knife scraping, abrasive belt and sand tumbling; the green removing process is carried out before the round bamboo is subjected to heat treatment.
And (3) drying and processing the bamboo wood: drying the processed round bamboo to water content of 10-15%, processing into required size and shape, obliquely sawing the bottom end into tip, plugging the hollow part of the tip of the bamboo tube with wood plug,
and (4) performing ceramic waterproof treatment on the surface layer of the round bamboo: and (3) spraying a waterproof ceramic protective layer 3 on the bottom end of the round bamboo, the part in the soil, the part at the periphery of the bamboo tube 200-400mm away from the ground and the surface of the top cover, wherein the waterproof ceramic protective layer 3 forms a waterproof, anticorrosive and anti-collision protective layer on the periphery of the bamboo tube.
The lowest end of the bamboo tube is provided with a carbonized wood bar or bamboo splints treated by high-temperature saturated steam, the carbonized wood bar or the bamboo splints are connected with round bamboos and processed into round bamboo column feet 4 with closed tips, and then a waterproof ceramic protective layer 3 is manufactured by spraying or a mould.
The bamboo tube is made of wood material or bamboo unit material, and the treatment modes are the same except that the saturated steam heat treatment time is adjusted along with the size of the material.
The thickness of the waterproof ceramic protective layer 3 is 1-8 mm.
The invention has the beneficial effects that:
the outdoor composite round bamboo which can be fixed in soil is manufactured by high-temperature heat treatment and ceramic coating. The waterproof ceramic material is utilized to form a hard protective layer on the surface of the bamboo material treated by high-temperature saturated steam, so that moisture and rotten fungi in soil are isolated, and in addition, nutrient substances in the bamboo material are damaged, so that insects and fungi cannot live on the bamboo material, and the round bamboo can be directly fixed with the ground (foundation). This novel compound bamboo in outdoor makes conveniently, low in production cost, protection against insects mould proof, and convenient to use is swift, and convenient to detach changes, provides better connected mode for the outdoor use in a large number of circles bamboo, is sustainable circular economy.
Drawings
FIG. 1 is a schematic view of a composite round bamboo structure.
In the figure: 1 is a top cover; 2 is a bamboo rod; 3 is a waterproof ceramic protective layer; 4 is a round bamboo column base.
Detailed Description
The bamboo material is first treated in high temperature saturated steam for 10-90 min, dried and sawed into required length, and then coated with hard resin containing stone powder and other material in the lower part and 300mm higher part of the bamboo material and painted with the same resin to form one kind of hard ceramic protecting layer to prevent rain water from entering the bamboo tube. The bamboo wood is contacted with the soil part, can be the bamboo tube itself, also can process into tip shape with the log stick, bamboo chip, and bond firmly with the log stick or bamboo chip and bamboo tube lower extreme with resin, such a can be used for the open air and can be directly inserted the compound bamboo pole in the soil and just make, this compound bamboo tube dimensional stability is good, the upper surface does not have rainwater to enter the inside of bamboo tube, the lower surface does not directly contact with soil, can not decay, because the high temperature saturated steam is handled, this bamboo pole does not moth and go mouldy either. Can be used as a bamboo fence, a plant support rod, a bamboo greenhouse, a bamboo house and the like to be directly contacted with the ground or concrete, and the processing method is sustainable and circular economy.
The technical scheme of the invention is further explained by combining the attached drawings
As shown in the attached figure 1, the composite round bamboo comprises the following processing steps:
(1) treating the fresh bamboo wood by high-temperature saturated steam in a pressure tank at the temperature of 150 ℃ and 185 ℃ for 10-90 minutes.
(2) And (3) treating the bamboo green layer, wherein the bamboo green on the surface layer of the round bamboo, which needs to be coated with the ceramic resin, can be removed by adopting modes such as knife scraping, abrasive belt and the like. The de-greening process can be performed before the round bamboo is subjected to heat treatment.
(3) Drying and processing of round bamboo
Drying the processed round bamboo to water content of 10-15%, processing into required size and shape, obliquely sawing the bottom end into tip, and plugging the hollow part of the bamboo tube of the tip into a wood plug to form a sealed tip; the lowest end of the bamboo tube can also be wood bars and bamboo strips treated by high-temperature saturated steam. The upper part of the bamboo tube also needs to be plugged with top covers such as a wooden plug and the like so that rainwater can not enter or a certain special shape is formed.
(4) Ceramic waterproof treatment of round bamboo surface layer
The bottom end of the round bamboo is inserted into soil, a layer of special resin such as 1-8mm added stone powder is sprayed on the middle part of the round bamboo and the periphery of a bamboo tube 200-400mm away from the ground, a hard outer layer similar to ceramic is formed after the resin material is used for about 0.1-4h, and the ceramic outer layer forms a protective layer on the periphery of the bamboo tube and a round bamboo column foot to prevent the round bamboo from being rotten. The caps are treated the same. The ceramic treatment can also be quickly formed thermosetting magnesium oxysulfate cement, polyurethane and the like, and the outer layer is coated with a polymer waterproof layer and the like, wherein the polymer can be polyacrylate latex or polyurethane.
Example 1
A composite round bamboo comprises the following steps:
(1) treating the fresh bamboo wood with high-temperature saturated steam in a pressure tank, treating at 185 ℃ for 10 minutes, then releasing pressure, discharging the steam in the tank and opening a tank door.
(2) And (3) treating the bamboo green layer, wherein the bamboo green on the surface layer of the round bamboo, which is required to be coated with the ceramic resin, can be removed by adopting a knife scraping mode. The de-greening process can be performed before the round bamboo is subjected to heat treatment.
(3) Drying and processing of round bamboo
Drying the processed round bamboo until the water content is 10-13%, processing into required size and shape, obliquely sawing the bottom end into a tip, and plugging a wood plug into the hollow part of the bamboo tube at the tip part to form a round bamboo column foot with a sealed tip. The upper part of the bamboo tube also needs to be plugged with a top cover such as a wooden plug, so that rainwater can not enter the bamboo tube, or other special shapes like a bamboo hat shape are formed.
(4) Ceramic waterproof treatment of round bamboo surface layer
And (3) spraying a layer of special resin with the thickness of 3mm added with stone powder and the like on the middle part of the bottom end of the round bamboo inserted into the soil and the periphery of the bamboo tube 300mm away from the ground, wherein the resin material forms a hard outer layer similar to ceramic after about 1h, and the ceramic outer layer forms a protective layer on the periphery of the bamboo tube to prevent the round bamboo from being rotten. The caps are treated the same.
Example 2
A composite round bamboo comprises the following steps:
(1) treating the fresh bamboo wood with high-temperature saturated steam in a pressure tank, treating at 170 ℃ for 25 minutes, then releasing pressure, discharging the steam in the tank and opening a tank door.
(2) And (3) treating the bamboo green layer, wherein the bamboo green on the surface layer of the round bamboo, which is required to be coated with the ceramic resin, can be removed by adopting a knife scraping mode. The de-greening process can be performed before the round bamboo is subjected to heat treatment.
(3) Drying and processing of round bamboo
Drying the processed round bamboo to the water content of 10-13%, processing the round bamboo into a required size and shape, inserting a wood stick with a proper size into the bottom end of the round bamboo, firmly bonding the upper end of the wood stick and the inner wall of the bamboo tube by adopting foamed polyurethane and the like, forming a tip at the lowest end of the round bamboo, plugging a cover head into the upper part of the bamboo tube, wherein the cover head is larger than the outer wall of the bamboo tube, firmly bonding the cover head with the upper end of the bamboo tube, and preventing rainwater from entering the bamboo tube.
(4) Ceramic waterproof treatment of round bamboo surface layer
And spraying a layer of 3mm polyurethane resin added with stone powder and the like on the bottom end of the round bamboo and a part of wood stick inserted into soil at the bottom end, wherein the resin material forms a hard outer layer similar to ceramic after about 10 minutes, and the ceramic outer layer forms a protective layer on the periphery of the bamboo tube and the column foot of the round bamboo to prevent the round bamboo from rotting. The upper end cap is also treated in the same way.
Example 3
A composite round bamboo comprises the following steps:
(1) treating the fresh bamboo wood with high-temperature saturated steam in a pressure tank, treating at 185 ℃ for 10 minutes, then releasing pressure, discharging the steam in the tank and opening a tank door.
(2) And (3) treating the bamboo green layer, wherein the bamboo green on the surface layer of the round bamboo, which needs to be coated with the magnesium oxysulfate cement, can be removed by adopting a knife scraping mode. The de-greening process can be performed before the round bamboo is subjected to heat treatment.
(3) Drying and processing of round bamboo
Drying the processed round bamboo until the water content is 10-13%, processing into required size and shape, obliquely sawing the bottom end into a tip, and plugging a wood plug into the hollow part of the bamboo tube at the tip part to form a round bamboo column foot with a sealed tip. The upper part of the bamboo tube also needs to be plugged with a top cover such as a wooden plug, so that rainwater can not enter the bamboo tube, or other special shapes like a bamboo hat shape are formed.
(4) Magnesium oxysulfate treatment of surface layer of round bamboo
Pouring a layer of magnesium oxysulfate cement with the thickness of 4mm on the bottom end of the round bamboo in the soil and on the periphery of a bamboo tube 300mm away from the ground, wherein the outer layer of the cement is provided with a mold, then heating the cement in a tunnel kiln at the temperature of 90 ℃ at most for about 50 minutes, taking the cement out of the kiln and cooling the cement for one day, then demolding, coating a polyacrylate latex waterproof coating on the outer layer of the magnesium oxysulfate cement, and forming a protective layer on the periphery of the bamboo tube on the outer layer of the magnesium oxysulfate cement to prevent the bottom of the round bamboo and the foot of. The caps are treated the same.
Claims (9)
1. A composite round bamboo used outdoors and capable of being fixed in soil is characterized in that the structure of the composite round bamboo comprises a top cover 1, a bamboo rod 2, a waterproof ceramic protective layer 3 and a round bamboo column foot 4; wherein the top of the bamboo rod 2 is provided with a top cover 1; the round bamboo column foot 4 is positioned at the bottom of the composite round bamboo, is the tip of a hollow structure, and is provided with a sealing wood plug, the round bamboo column foot 4 is a bamboo tube per se, or is processed into a carbonized wood bar with a tip shape at the end part or bamboo splints treated by high-temperature saturated steam, and is connected with the bottom end of the bamboo rod 2 through resin; the outer surface of the composite round bamboo is provided with a waterproof ceramic protective layer 3, the waterproof ceramic protective layer 3 is ceramic resin or fast-forming thermosetting magnesium oxysulfate cement with a polymer cement waterproof layer coated on the surface, and the polymer is polyacrylate latex or polyurethane.
2. The method for preparing the composite round bamboo used outdoors and capable of being fixed in soil as claimed in claim 1, which is characterized by comprising the following process steps:
a) performing high-temperature saturated steam treatment on the bamboo wood;
b) processing the bamboo green layer;
c) drying and processing the round bamboo;
d) and (3) performing ceramic waterproof treatment on the surface layer of the round bamboo.
3. The method for preparing the composite round bamboo which is used outdoors and can be fixed in soil according to claim 1, is characterized in that the step (1) of high-temperature saturated steam treatment of bamboo wood comprises the following steps: treating fresh round bamboo in a pressure tank by high-temperature saturated steam at the temperature of 150-190 ℃ for 6-90 minutes, drying and sawing into required length and size.
4. The method for preparing a composite round bamboo used outdoors and fixable in soil according to claim 1, wherein the step (2) of treating the bamboo green layer comprises: the outer layer of the round bamboo to be coated with the waterproof ceramic protective layer 3 is removed by a knife scraping mode, an abrasive belt mode or a sand tumbling mode; the green removing process is carried out before the round bamboo is subjected to heat treatment.
5. The method for preparing composite round bamboo used outdoors and capable of being fixed in soil according to claim 1, wherein the step (3) of drying and processing the bamboo is as follows: drying the processed round bamboo until the water content is 10-15%, processing the round bamboo into required size and shape, obliquely sawing the bottom end into a tip, and plugging a hollow part of the tip of the bamboo tube with a wood plug to form a closed tip column base; the upper part of the bamboo tube is provided with a top cover for blocking rainwater from flowing in.
6. The method for preparing the composite round bamboo used outdoors and capable of being fixed in soil according to claim 1, wherein the step (4) of ceramic waterproof treatment of the surface layer of the round bamboo comprises the following steps: and (3) spraying a waterproof ceramic protective layer 3 on the bottom end of the round bamboo, the part in the soil, the part at the periphery of the bamboo tube 200-400mm away from the ground and the surface of the top cover, wherein the waterproof ceramic protective layer 3 forms a waterproof, anticorrosive and anti-collision protective layer on the periphery of the bamboo tube.
7. The method as claimed in claim 1, wherein the composite round bamboo is prepared by connecting the bamboo tube with the round bamboo, processing the bamboo tube into the round bamboo column foot 4 with a closed tip, and spraying or molding to form a waterproof ceramic protective layer 3.
8. The method as claimed in claim 1, wherein the composite round bamboo is a wood material or a bamboo unit material, and the heat treatment time is adjusted according to the size of the material.
9. The method for preparing a composite round bamboo for outdoor use and fixable in soil according to claim 4 or 7, wherein said waterproof ceramic-based armor layer 3 has a thickness of 1-8 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911346145.6A CN111021354A (en) | 2019-12-24 | 2019-12-24 | Composite round bamboo used outdoors and capable of being fixed in soil and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911346145.6A CN111021354A (en) | 2019-12-24 | 2019-12-24 | Composite round bamboo used outdoors and capable of being fixed in soil and manufacturing method thereof |
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| CN111021354A true CN111021354A (en) | 2020-04-17 |
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| CN201911346145.6A Pending CN111021354A (en) | 2019-12-24 | 2019-12-24 | Composite round bamboo used outdoors and capable of being fixed in soil and manufacturing method thereof |
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| CN2106891U (en) * | 1991-11-27 | 1992-06-10 | 王继良 | Bamboo moulding anchoring bolt for supporting galleries |
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| CN107460875A (en) * | 2017-09-27 | 2017-12-12 | 国网四川省电力公司宜宾供电公司 | A kind of light-duty big anchor force earth anchor |
| CN208040018U (en) * | 2018-02-08 | 2018-11-02 | 洪叶 | It is a kind of to facilitate fixed bamboo and wood fence |
| CN109015981A (en) * | 2018-07-24 | 2018-12-18 | 中国林业科学研究院木材工业研究所 | A kind of wood bamboo material anticorrosive mildewproof modifying composition agent and the method for handling wood bamboo material |
| CN109159236A (en) * | 2018-09-11 | 2019-01-08 | 南京林业大学 | A kind of manufacturing method of composite bamboo railing |
| CN109551591A (en) * | 2018-12-18 | 2019-04-02 | 西南林业大学 | A kind of round bamboo protective agent and round bamboo means of defence |
| CN109944257A (en) * | 2018-10-19 | 2019-06-28 | 岳阳市公路桥梁基建总公司 | A kind of rock side slope novel ecological safeguard structure and construction method |
| CN110485371A (en) * | 2019-09-02 | 2019-11-22 | 中国水利水电科学研究院 | A kind of flexible anchoring frame and its ecological bank protection structure |
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2019
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2106891U (en) * | 1991-11-27 | 1992-06-10 | 王继良 | Bamboo moulding anchoring bolt for supporting galleries |
| CN1403660A (en) * | 2002-10-11 | 2003-03-19 | 徐铭龙 | Composite bamboo-nail support wall for soft soil foundation pit |
| CN205857913U (en) * | 2016-07-09 | 2017-01-04 | 安吉恒盛竹木有限公司 | A kind of bamboo fence being easy to fix |
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| CN109015981A (en) * | 2018-07-24 | 2018-12-18 | 中国林业科学研究院木材工业研究所 | A kind of wood bamboo material anticorrosive mildewproof modifying composition agent and the method for handling wood bamboo material |
| CN109159236A (en) * | 2018-09-11 | 2019-01-08 | 南京林业大学 | A kind of manufacturing method of composite bamboo railing |
| CN109944257A (en) * | 2018-10-19 | 2019-06-28 | 岳阳市公路桥梁基建总公司 | A kind of rock side slope novel ecological safeguard structure and construction method |
| CN109551591A (en) * | 2018-12-18 | 2019-04-02 | 西南林业大学 | A kind of round bamboo protective agent and round bamboo means of defence |
| CN110485371A (en) * | 2019-09-02 | 2019-11-22 | 中国水利水电科学研究院 | A kind of flexible anchoring frame and its ecological bank protection structure |
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Application publication date: 20200417 |
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