CN215108956U - Compound selfreparing waterproofing membrane - Google Patents
Compound selfreparing waterproofing membrane Download PDFInfo
- Publication number
- CN215108956U CN215108956U CN202121144869.5U CN202121144869U CN215108956U CN 215108956 U CN215108956 U CN 215108956U CN 202121144869 U CN202121144869 U CN 202121144869U CN 215108956 U CN215108956 U CN 215108956U
- Authority
- CN
- China
- Prior art keywords
- waterproof
- bentonite
- geotextile
- repairing
- rubber gasket
- 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
Images
Landscapes
- Laminated Bodies (AREA)
Abstract
The application relates to a composite self-repairing waterproof coiled material which comprises a waterproof plate, geotextile, a rubber gasket, a suture and bentonite particles; the bentonite particles are uniformly spread between the two layers of geotextiles, the waterproof boards comprise a first waterproof board and a second waterproof board, the first waterproof board is arranged on the outer side of the first geotextile, and the second waterproof board is arranged on the outer side of the second geotextile; a preset distance is reserved between the two waterproof plates, a rubber gasket is arranged between the two waterproof plates, the two waterproof plates are supported by the rubber gasket, and a bentonite containing space is formed between the two waterproof plates; the rubber gasket and each waterproof plate are fixed by glue; forming a plurality of units among the waterproof boards, placing the bentonite waterproof blankets in each unit, and arranging sewing lines among the bentonite waterproof blankets; after the waterproof board is punctured, water permeates from the crack, and the bentonite particles expand when meeting water, so that a uniform colloid system is formed.
Description
Technical Field
The application relates to the technical field of tunnel engineering, in particular to a composite self-repairing waterproof coiled material.
Background
The tunnel leakage water is one of the most common diseases of tunnels all over the world, and the tunnel engineering world has been said to be 'ten tunnels and nine leaks'. Most of tunnels built before the 60 s in the 20 th century are not subjected to waterproof treatment, and the problem of water leakage is prominent. The 'new Olympic method' is widely applied to tunnel engineering construction in China since the tunnel of the great Yao mountain of the Jingguang railway adopted the 'new Olympic method' in the end of the 80 th century in the 20 th century. The new Austrian's method is structurally characterized by adopting composite lining. Usually, anchor spraying, anchor net spraying and steel arch frames are used as flexible primary supports. And pouring a secondary lining by using a mould as a safe reserve. And paving a waterproof plate between the primary support and the secondary lining for blocking underground water in the mountain. However, due to the change of construction process and load conditions, the water leakage of construction joints and deformation joints accounts for more than 60% of the total water leakage of the tunnel, and even the phenomenon of 'leakage when a joint is seen' occurs in individual projects.
The leakage of the tunnel can cause the corrosion of secondary lining reinforcing steel bars and the corrosion of concrete, and the safety and the durability of the tunnel structure are influenced; normal use of electrical equipment in the crisis tunnel; in cold areas, tunnel freeze injury can be caused, the safety of the structure is affected, meanwhile, the tunnel freeze injury can invade building limits, road icing is generated, and driving safety is endangered. For a highway tunnel, water accumulation on the road surface can be caused, the friction coefficient of the road surface is reduced, and traffic accidents caused by vehicle sideslip and out-of-control direction are easy to happen; for railway tunnels, the leakage water can cause rail corrosion, and the service life of the tunnel steel rail is only 50% of that in the normal state under the condition of the leakage water according to statistics. If the water leakage of the tunnel is not repaired, the long-term maintenance cost can reach 5 times of the normal cost. China costs billions of funds on the disposal of tunnel leakage water each year.
Factors causing water leakage in tunnels may be classified into natural factors and artificial factors. In the construction process, due to human factors, the waterproof plate is punctured by rocks, anchor rod ends, hanging nails and the like; in the operation process, the waterproof board is stretched and broken due to natural factors such as load, deformation and the like; is an important reason for water leakage in mountain tunnels. The waterproof coiled material commonly used in the current tunnel comprises: PVC waterproof coiled material, EVA waterproof coiled material, PE waterproof coiled material, but do not have the ability from leaking stoppage, self-repairing. Therefore, the invention is urgently needed to invent a tunnel waterproof coiled material with self-repairing and self-plugging performances, and has great social and economic benefits.
Disclosure of Invention
Aiming at the problems in the prior art, the invention aims to provide a composite self-repairing waterproof coiled material and a preparation method thereof. According to the self-repairing waterproof roll, after the plastic waterproof board is punctured, if water permeates from the crack, the bentonite particles expand when encountering water, so that a uniform colloid system is formed, under the limiting action of the two layers of geotextiles, the bentonite is changed from disorder to ordered expansion, and the bentonite layer is compacted as a result of continuous water absorption expansion, so that the self-repairing waterproof roll has a good waterproof effect. The composite waterproof board has the characteristics of simple preparation process, low material price, wide application range, good economic benefit and the like.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows:
a composite self-repairing waterproof coiled material comprises a waterproof plate, geotextile, a rubber gasket, a suture and bentonite particles; the bentonite particles are uniformly spread between the two layers of geotextiles, the waterproof boards comprise a first waterproof board and a second waterproof board, the first waterproof board is arranged on the outer side of the first geotextile, and the second waterproof board is arranged on the outer side of the second geotextile; a preset distance is reserved between the two waterproof plates, a rubber gasket is arranged between the two waterproof plates, the two waterproof plates are supported by the rubber gasket, and a bentonite containing space is formed between the two waterproof plates; the rubber gasket and each waterproof plate are fixed by glue; forming a plurality of units among the waterproof boards, placing the bentonite waterproof blankets in each unit, and arranging sewing lines among the bentonite waterproof blankets; after the waterproof board is punctured, water permeates from the crack, and the bentonite particles expand when meeting water, so that a uniform colloid system is formed.
Preferably, uniformly distributed needle punched holes are formed in the bentonite particles and the geotextile.
Preferably, the bentonite particles are natural nano-bentonite particles.
Preferably, the waterproof board is an outer layer waterproof board, and the outer layer waterproof board is a plastic waterproof board.
Preferably, the thickness of the bentonite waterproof blanket is 2 mm-3 mm, and the distance between the needle holes on the bentonite waterproof blanket is 2 mm-8 mm.
Preferably, the rubber gasket is a square rubber gasket.
Preferably, the side length of the square rubber gasket between the waterproof plates is 20-60 mm, the thickness of the square rubber gasket is 2-3 mm, and the square rubber gasket is bonded with the two waterproof plates through high-strength colloid to fix the waterproof plates and the bentonite waterproof blanket.
Preferably, the edges of the flashing are left with a connecting area of width between 30mm and 50 mm.
Preferably, the needle-punched bentonite waterproof blanket is of a three-layer structure which comprises a first geotextile, a bentonite particle layer and a second geotextile from top to bottom, and the three-layer structure is fixedly connected together through a needle-punching process so as to be reinforced.
Preferably, the needle-punched bentonite waterproof blanket is a double-faced needle-punched bentonite waterproof blanket, which comprises five layers of structures, namely, a non-woven geotextile, a bentonite particle layer, a split film yarn woven geotextile, a bentonite particle layer and a non-woven geotextile from top to bottom, wherein the five layers of structures are fixedly connected together through a needle-punching process so as to be reinforced.
Compared with the prior art, the invention has the advantages that:
the coiled material is a self-repairing novel waterproof coiled material which can automatically block water after being punctured. The composite self-repairing waterproof roll is a tunnel waterproof roll with self-repairing capability, and has self-plugging waterproof capability when the tunnel waterproof roll is punctured, scratched or cracked. According to the self-repairing waterproof roll, after the plastic waterproof board is punctured, if water permeates from the crack, the bentonite particles expand when encountering water, so that a uniform colloid system is formed, under the limiting action of the two layers of geotextiles, the bentonite is changed from disorder to ordered expansion, and the bentonite layer is compacted as a result of continuous water absorption expansion, so that the self-repairing waterproof roll has a good waterproof effect. The composite waterproof board has the characteristics of simple preparation process, low material price, wide application range, good economic benefit and the like. After the plastic waterproof board is punctured, if water permeates from the crack, the bentonite particles expand when encountering water, so that an even colloid system is formed, under the limiting action of the two layers of geotextiles, the bentonite is changed from disorder to ordered expansion, and the bentonite layer can be compacted by self due to continuous water absorption expansion, thereby having good waterproof effect. The composite waterproof board has the advantages of simple preparation process, low material price, wide application range and good economic benefit.
Drawings
The advantages of the above and/or additional aspects of the present invention will become apparent and readily appreciated from the following description of the embodiments taken in conjunction with the accompanying drawings of which:
fig. 1 is a schematic structural diagram of a composite self-repairing waterproof roll according to the invention.
Fig. 2 is a sectional view of the composite self-repairing waterproofing membrane according to the present invention.
Detailed Description
In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the invention will be rendered by reference to the appended drawings. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
According to the embodiment of the invention, as shown in fig. 1 and fig. 2, the composite self-repairing waterproof roll comprises a waterproof plate 1, a geotextile 2, a rubber gasket 3, a suture 4 and bentonite particles 5.
The geotextile 2 comprises a first geotextile and a second geotextile, and the bentonite particles 5 are arranged between the first geotextile and the second geotextile.
Preferably, the bentonite particles 5 are natural sodium bentonite particles.
The bentonite particles 5 are evenly paved between the two layers of geotextile, and the bentonite particles 5 are locked between the two layers of geotextile to form the bentonite waterproof blanket.
The waterproof board comprises a first waterproof board and a second waterproof board, the first waterproof board is arranged on the outer side of the first geotextile, and the second waterproof board is arranged on the outer side of the second geotextile. Preferably, the distance between the two waterproof boards is 2 mm-3 mm, so that the bentonite waterproof blanket is arranged between the two outer waterproof boards.
Preferably, the two outer waterproof boards are both EVA type waterproof boards, and the thickness of each outer waterproof board is 1.0-2.0 mm.
Set up rubber gasket 3 between two-layer waterproof board, it is fixed to carry out the viscose between rubber gasket 3 and each waterproof board. The waterproof boards form a plurality of units, the bentonite waterproof blankets are arranged in the units, and the seams 4 are arranged among the bentonite waterproof blankets.
The bentonite waterproof blanket is a needle-punching type bentonite waterproof blanket, namely, the bentonite waterproof blanket is provided with puncture holes, and all layers of the bentonite waterproof blanket are fixedly connected together through a puncture process.
Preferably, the thickness of the bentonite waterproof blanket is 2-3 mm, and the distance between the needling holes 6 is 2-8 mm.
More specifically, the equipartition has a plurality of rubber gasket between two-layer waterproof board, bonds through the colloid that excels in between rubber gasket and the waterproof board, and then forms a plurality of units between the waterproof board, and the waterproof blanket of bentonite is placed within each unit.
Preferably, the rubber gasket 3 is a square rubber gasket.
The square rubber gasket between the waterproof boards is 20-60 mm in side length and 2-3 mm in thickness, and is bonded with the two layers of waterproof boards through a high-strength colloid so as to fix the waterproof boards and the bentonite waterproof blanket;
preferably, the edge of the waterproof board is provided with a connecting area with the width of 30 mm-50 mm, the waterproof blanket is not arranged in the connecting area, and the first waterproof board and the second waterproof board are integrated through heat seal bonding through the connecting area. When the composite self-repairing waterproof coiled material is connected with other composite self-repairing waterproof coiled materials, a heat sealing mode is also adopted.
The total thickness of the composite self-repairing waterproof roll material is 5-6 mm.
Preferably, the needle-punched bentonite waterproof blanket is of a three-layer structure which comprises a first geotextile, a bentonite particle layer and a second geotextile from top to bottom, and the three-layer structure is fixedly connected together through a needle-punching process so as to be reinforced.
The needle-punched bentonite waterproof blanket can be a double-faced needle-punched bentonite waterproof blanket, and comprises five layers of structures, namely a non-woven geotextile, a bentonite particle layer, a split film yarn woven geotextile, a bentonite particle layer and a non-woven geotextile from top to bottom, wherein the five layers of structures are fixedly connected together through a needle-punching process so as to be reinforced.
When the EVA waterproof board is punctured, if water permeates from the crack, the bentonite particles expand when meeting water, so that a uniform colloid system is formed. Under two-layer geotechnological cloth restriction, the bentonite becomes orderly inflation from unordered, makes bentonite grained layer self reach closely knit through the inflation that absorbs water that lasts to have good waterproof effect. The composite waterproof board has the characteristics of simple preparation process, low material price, wide application range, good economic benefit and the like.
Preferably, the rubber gasket is a small foot mat.
The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the invention may occur to those skilled in the art without departing from the principle of the invention, and are considered to be within the scope of the invention.
It will be understood that the above embodiments are merely exemplary embodiments taken to illustrate the principles of the present invention, which is not limited thereto. Those of ordinary skill in the art will understand that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and operate, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; the communication may be direct, indirect via an intermediate medium, or internal to both elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art. In addition, in the description of the present invention, "at least three" means two or more unless otherwise specified.
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, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (10)
1. The composite self-repairing waterproof roll is characterized by comprising a waterproof plate, geotextile, a rubber gasket, a suture and bentonite particles; the bentonite particles are uniformly spread between the two layers of geotextiles, the waterproof boards comprise a first waterproof board and a second waterproof board, the first waterproof board is arranged on the outer side of the first geotextile, and the second waterproof board is arranged on the outer side of the second geotextile; a preset distance is reserved between the two waterproof plates, a rubber gasket is arranged between the two waterproof plates, the two waterproof plates are supported by the rubber gasket, and a bentonite containing space is formed between the two waterproof plates; the rubber gasket and each waterproof plate are fixed by glue; forming a plurality of units among the waterproof boards, placing the bentonite waterproof blankets in each unit, and arranging sewing lines among the bentonite waterproof blankets; after the waterproof board is punctured, water permeates from the crack, and the bentonite particles expand when meeting water, so that a uniform colloid system is formed.
2. The composite self-repairing waterproof roll as claimed in claim 1, wherein uniformly distributed needle punched holes are formed in the bentonite particles and the geotextile.
3. The composite self-repairing waterproof roll as claimed in claim 2, wherein the bentonite particles are natural nano bentonite particles.
4. The composite self-repairing waterproof roll as claimed in claim 3, wherein the waterproof sheet is an outer waterproof sheet, and the outer waterproof sheet is a plastic waterproof sheet.
5. The composite self-repairing waterproof roll as claimed in claim 4, wherein the thickness of the bentonite waterproof blanket is 2mm to 3mm, and the pitch of the needle holes on the waterproof blanket is 2mm to 8 mm.
6. The composite self-repairing waterproof roll as claimed in claim 5, wherein the rubber gasket is a square rubber gasket.
7. The composite self-repairing waterproof roll as claimed in claim 6, wherein the square rubber gasket between the waterproof boards has a side length of 20mm to 60mm and a thickness of 2mm to 3mm, and is bonded with the two waterproof boards through a high-strength adhesive to fix the waterproof boards and the bentonite waterproof blanket.
8. The composite self-repairing waterproof roll as claimed in claim 7, wherein a connecting area with a width of 30mm to 50mm is reserved at the edge of the waterproof plate.
9. The composite self-repairing waterproof roll as claimed in claim 8, wherein the needle-punched bentonite waterproof blanket is of a three-layer structure comprising, from top to bottom, a first geotextile, a bentonite particle layer and a second geotextile, and the three-layer structure is fixedly connected together through a needle-punching process to reinforce the geotextile.
10. The composite self-repairing waterproof roll as claimed in claim 8, wherein the needle-punched bentonite waterproof blanket is a double-faced needle-punched bentonite waterproof blanket comprising five layers of structures, from top to bottom, a non-woven geotextile, a bentonite particle layer, a split film yarn-woven geotextile, a bentonite particle layer and a non-woven geotextile, and the five layers of structures are fixedly connected together through a needle-punching process to reinforce the five layers of structures.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121144869.5U CN215108956U (en) | 2021-05-26 | 2021-05-26 | Compound selfreparing waterproofing membrane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121144869.5U CN215108956U (en) | 2021-05-26 | 2021-05-26 | Compound selfreparing waterproofing membrane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215108956U true CN215108956U (en) | 2021-12-10 |
Family
ID=79298404
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121144869.5U Active CN215108956U (en) | 2021-05-26 | 2021-05-26 | Compound selfreparing waterproofing membrane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215108956U (en) |
-
2021
- 2021-05-26 CN CN202121144869.5U patent/CN215108956U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2017152674A1 (en) | Underground engineering waterproofing structure | |
| KR101336333B1 (en) | Reinforcing materials with glass fiber grid on non-woven sheet and reinforcing methods of pavements over unusual section (soft grounds, bridge deck pavement, concrete pavement) with preventing earlier failures, deformation and increasing the service life and durability of pavements by using reinforcing materials with glass fiber grid on non-woven sheet | |
| EP1045071A3 (en) | Geocomposite system for roads and bridges and construction method | |
| RO120206B1 (en) | Method and device for waterproof-covering for joints and/or cracks in hydraulic works, concrete and/or brick structures | |
| CN104674650B (en) | Based on bridge floor seamless process retractor device and the construction method thereof of the type transverse joint plate of putting more energy into | |
| CN104632277A (en) | Bonded flexible water proof and drainage coiled material for road and railway tunnel and laying method thereof | |
| EP3099859A1 (en) | Method for waterproofing railway bridges and waterproofing material for carrying out said method | |
| CN215108956U (en) | Compound selfreparing waterproofing membrane | |
| KR100991687B1 (en) | A mat for constructing draine layer of waste landfill | |
| AU2006212015B2 (en) | A water detention system incorporating a composite drainage membrane | |
| KR101401401B1 (en) | Waterproof seat for tunnel and waterproof tunnel protecting process using the same | |
| CN206635644U (en) | A kind of waterproof structure of highway bridge | |
| CN113294179A (en) | Self-repairing tunnel waterproof coiled material and preparation method thereof | |
| CN209040863U (en) | A kind of tunnel waterproofing construction | |
| JP2896987B2 (en) | Base reinforcement structure | |
| CN110847246A (en) | Manufacturing method of rigid landfill seepage prevention system and rigid landfill seepage prevention system | |
| CN212248082U (en) | Reservoir seepage prevention structure | |
| CN201386246Y (en) | Enhancement type compound tree-dimensional drainage network pad | |
| ES2393876B1 (en) | Surface isolation geomembrane arrangement and corresponding insulation procedure | |
| CN108999053A (en) | A kind of composite assembly cement concrete pavement structure and construction method | |
| CN212270826U (en) | Check guest net cage | |
| CN212128052U (en) | Self-adhesive polymer modified asphalt waterproof coiled material | |
| CN204476468U (en) | A kind of highway, the bonded flexible guarded drainage coiled material of railway tunnel | |
| CN217203424U (en) | Drainage type composite elastic foam board | |
| CN105926437A (en) | Hinge joint drainage structure and construction method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |