CN112796351A - Interlocking sealing device and method for connecting flexible vertical impervious wall system - Google Patents
Interlocking sealing device and method for connecting flexible vertical impervious wall system Download PDFInfo
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- CN112796351A CN112796351A CN202110154662.4A CN202110154662A CN112796351A CN 112796351 A CN112796351 A CN 112796351A CN 202110154662 A CN202110154662 A CN 202110154662A CN 112796351 A CN112796351 A CN 112796351A
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- longitudinal space
- female buckle
- wall system
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- 238000007789 sealing Methods 0.000 title claims abstract description 24
- 238000000034 method Methods 0.000 title claims abstract description 16
- 229920001903 high density polyethylene Polymers 0.000 claims abstract description 61
- 239000004700 high-density polyethylene Substances 0.000 claims abstract description 61
- 229920006262 high density polyethylene film Polymers 0.000 claims abstract description 26
- 239000000853 adhesive Substances 0.000 claims abstract description 17
- 230000001070 adhesive effect Effects 0.000 claims abstract description 16
- 239000000463 material Substances 0.000 claims abstract description 8
- 238000003466 welding Methods 0.000 claims abstract description 8
- 238000002844 melting Methods 0.000 claims abstract description 7
- 230000008018 melting Effects 0.000 claims abstract description 7
- 239000012528 membrane Substances 0.000 claims description 11
- 230000002512 anti-withdrawal effect Effects 0.000 claims description 5
- 239000012943 hotmelt Substances 0.000 claims description 4
- 238000005516 engineering process Methods 0.000 description 4
- 230000007797 corrosion Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 239000004744 fabric Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 239000004593 Epoxy Substances 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000002894 chemical waste Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003673 groundwater Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000010813 municipal solid waste Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 238000003900 soil pollution Methods 0.000 description 1
- 239000002910 solid waste Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000003911 water pollution Methods 0.000 description 1
Images
Classifications
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D31/00—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Hydrology & Water Resources (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Bulkheads Adapted To Foundation Construction (AREA)
Abstract
The invention provides an interlocking sealing device and method for connecting a flexible vertical diaphragm wall system, which comprises a female buckle and a male buckle, wherein the female buckle and the male buckle are both made of HDPE materials and can be connected with an HDPE film in a hot melting welding mode; a longitudinal space is formed in the female buckle, the longitudinal space is provided with an opening, the male buckle is arranged in the longitudinal space of the female buckle to form buckling connection, and the opening is closed; HDPE pipes with sieve holes are further arranged in the longitudinal space along the longitudinal direction, and adhesives are filled into the longitudinal space through the sieve holes of the HDPE pipes. The invention can ensure that two films are stably connected to form a continuous impervious wall with excellent extensibility, can bear the influences of geological motion, ground settlement and the like, can effectively prevent the leakage problem of the connection part of the films and ensure the durable sealing of the flexible vertical impervious system.
Description
Technical Field
The invention relates to the technical field of seepage prevention of polluted sites, in particular to an interlocking sealing device and method for flexible vertical seepage-proof wall system connection for underground water pollution isolation.
Background
With the rapid development of economy, the acceleration of industrialization and urbanization, the production amount of municipal solid waste is increased dramatically. At present, in the field of environmental protection, underground soil and water are polluted, and more pollution leakage events occur due to soil pollution diffusion and the like caused by solid waste and organic chemical waste which are stocked for a long time.
The control of the pollution range is particularly important in pollution management and treatment because the pollution source is not easy to eradicate, but the pollution is accumulated and diffused, and the vertical anti-seepage technology mainly utilizes the underground anti-seepage wall technology to block and seal the pollutants or change the flow direction of underground water to achieve the aim of controlling the migration of the pollution level, and has the advantages of quick effect, corrosion resistance and stable performance.
The flexible vertical seepage-proofing technology is characterized in that an HDPE film is used as a main seepage-proofing material, and a lap seepage-proofing material is poured at the bottom of the HDPE film and is connected with a relative impervious layer in a geological structure layer to form the flexible vertical seepage-proofing wall with ultrahigh performance. The composite material has the characteristics of low permeability, high corrosion resistance and the like, can comprehensively block and obstruct a pollution site, and can reach a service life of 50 years.
In the vertical separation wall technique of traditional flexibility, the HDPE membrane installation finishes, need be through interlocking structure, connects the HDPE membrane, but has existed the cavity gap between the connection structure, leads to the liquid seepage easily, influences the treatment effect, consequently urgently needs to carry out the improvement of structure and technology.
Disclosure of Invention
The invention aims to provide an interlocking sealing device and method for connecting a flexible vertical impervious wall system, so as to solve the problems that the traditional membrane is easy to tear and leak when being connected.
In order to achieve the purpose, the invention adopts the technical scheme that:
the interlocking sealing device for the connection of the flexible vertical impervious wall system is characterized by comprising a female buckle and a male buckle, wherein the female buckle and the male buckle are made of HDPE materials and can be connected with an HDPE film in a hot melting welding mode;
a longitudinal space is formed in the female buckle, the longitudinal space is provided with an opening, the male buckle is arranged in the longitudinal space of the female buckle to form buckling connection, and the opening is closed;
HDPE pipes with sieve holes are further arranged in the longitudinal space along the longitudinal direction, and adhesives are filled into the longitudinal space through the sieve holes of the HDPE pipes.
The flexible vertical impervious wall system connect and use interlocking sealing device, wherein: one end of the cross section of the male buckle is used for being connected with an HDPE film, the other end of the cross section of the female buckle is provided with an arrow, one end of the cross section of the female buckle is used for being connected with another HDPE film, the other end of the cross section of the female buckle is provided with two separated clamp legs, the longitudinal space is formed between the two clamp legs, the tail ends of the two clamp legs are relatively recovered to form the opening, and the inner sides of the tail ends of the two clamp legs respectively form an anti-withdrawal hook for being matched and buckled with the arrow of the.
The flexible vertical impervious wall system connect and use interlocking sealing device, wherein: the one end that the son detained and is used for connecting the HDPE membrane is planar, the one end that the box was used for connecting the HDPE membrane is planar.
The flexible vertical impervious wall system connect and use interlocking sealing device, wherein: the HDPE pipe is characterized in that the sieve holes are formed in one side of the HDPE pipe to form a non-fixing surface, the sieve holes are not formed in the other side of the HDPE pipe to form a fixing surface, the HDPE pipe is attached to the female buckle through adhesive, and the non-fixing surface of the HDPE pipe faces the opening of the longitudinal space.
The flexible vertical impervious wall system connect and use interlocking sealing device, wherein: a longitudinal arc surface is formed in the longitudinal space of the female buckle so as to enable the fixing surface of the HDPE pipe to be attached.
An interlocking sealing method for connecting a flexible vertical impervious wall system is characterized by comprising the following steps:
(1) the first HDPE film is in hot-melt welding with one end of the female buckle, the second HDPE film is in hot-melt welding with one end of the male buckle, and the female buckle and the male buckle are both made of HDPE materials; the female buckle is internally provided with a longitudinal space which is provided with an opening, and the male buckle is arranged in the longitudinal space of the female buckle to form buckling connection and close the opening; HDPE pipes with sieve holes are arranged in the longitudinal space along the longitudinal direction;
(2) and injecting an adhesive into the longitudinal space through the sieve holes of the HDPE pipe, so that the longitudinal space and the connecting gaps of the female buckle and the male buckle are filled with the adhesive.
The interlocking sealing method for the connection of the flexible vertical impervious wall system comprises the following steps: in the step (1), a first HDPE film and the female buckle are firstly placed into the groove section which is excavated, and then a second HDPE film and the male buckle are longitudinally slid into the longitudinal space of the female buckle.
The interlocking sealing method for the connection of the flexible vertical impervious wall system comprises the following steps: the other end of the secondary buckle is provided with an arrow, the other end of the primary buckle is provided with two separated pliers legs, the longitudinal space is formed between the two pliers legs, the tail ends of the two pliers legs are relatively recovered to form the opening, and the inner sides of the tail ends of the two pliers legs respectively form an anti-withdrawal hook for being matched and buckled with the arrow of the secondary buckle.
The interlocking sealing method for the connection of the flexible vertical impervious wall system comprises the following steps: the HDPE pipe is pre-implanted into the female buckle, or is inserted into the longitudinal space to be fixed after the female buckle is butted with the male buckle.
The interlocking sealing method for the connection of the flexible vertical impervious wall system comprises the following steps: in the step (1), the sieve holes are formed on one side of the HDPE pipe to form a non-fixed surface, the sieve holes are not formed on the other side of the HDPE pipe to form a fixed surface, the HDPE pipe is attached to the female buckle through adhesive on the fixed surface, and the non-fixed surface of the HDPE pipe faces the opening of the longitudinal space.
The invention has the advantages that:
1. the film, the male button, the female button and the HDPE pipe in the invention have chemical stability capable of resisting pollutant corrosion, and the service life can reach 50 years.
2. The invention can stably connect two films to form a continuous impervious wall with excellent extensibility, and can bear the influences of geological motion, ground settlement and the like.
3. The HDPE pipe with the sieve holes, which is applied between the male buckle and the female buckle, can effectively prevent the leakage problem of the membrane connecting part and ensure the lasting sealing of the flexible vertical anti-seepage system.
Drawings
Fig. 1 is a cross-sectional view of the box of the present invention.
Figure 2 is a cross-sectional view of a sub-clasp of the present invention.
FIG. 3 is a schematic diagram of the adhesion of HDPE pipes arranged in the longitudinal space of the female buckle.
Figure 4 is a schematic representation of the location of the holes in the HDPE pipe of the invention.
FIG. 5 is a schematic view of the connection between the male and female fasteners of the present invention.
FIG. 6 is a schematic view of a flexible vertical diaphragm wall system of the present invention.
Description of reference numerals: 1-female buckle; 2-buckling; 3-HDPE pipe; 4-non-fixed surface; 5-a fixed surface; 6-adhesive; 7-a first HDPE film; 8-second HDPE film.
Detailed Description
Preferred embodiments of the present invention will be described in more detail below. While the following describes preferred embodiments of the present invention, it should be understood that the present invention may be embodied in various forms and should not be limited by 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 invention to those skilled in the art.
As shown in fig. 1, 2, 3, 4, 5 and 6, the present invention provides an interlocking sealing device for connection of a flexible vertical cut-off wall system for groundwater contamination barrier, which comprises: first width of cloth HDPE membrane 7, weld in the box 1 of first width of cloth HDPE membrane 7, with the box 1 form the son of lock joint detain 2 and detain 2 welded second width of cloth HDPE membrane 8 with son, son detain 2 lock joints in the longitudinal space of box 1, and arrange the HDPE tubular product 3 that the surface has the sieve mesh in the longitudinal space, through HDPE tubular product 3's sieve mesh to longitudinal space filling adhesive 6.
The female buckle 1 and the male buckle 2 are made of HDPE materials, so that the female buckle and the HDPE films are connected in a hot melting welding mode.
As shown in fig. 2 and 3, the sub-buckle 2 is a sheet-shaped object, the depth (penetrating the paper) can reach tens of meters, and one end of the cross section is planar, and the other end has an arrow;
as shown in fig. 1 and 3, the female buckle 1 is also a sheet-shaped object, the depth (penetrating the paper) of the female buckle is the same as that of the male buckle 2 and can reach several tens of meters, one end of the cross section of the female buckle is planar, the other end of the cross section of the female buckle is provided with two separate clamp legs, a longitudinal space is formed between the two clamp legs, the tail ends of the two clamp legs are relatively recovered to form an opening, and the inner sides of the tail ends of the two clamp legs are respectively provided with an anti-withdrawal hook for matching and buckling with an arrow of the male buckle 2;
when the invention is used, as shown in figures 3-6, a first HDPE film 7 is welded with the plane end of the female buckle 1 in a hot melting way, and a second HDPE film 8 is welded with the plane end of the male buckle 2 in a hot melting way; the first HDPE film 7 and the female buckle 1 are placed into the groove section which is excavated, then the second HDPE film 8 and the male buckle 2 slide into the longitudinal space of the female buckle 1 along the longitudinal direction, and the arrow of the male buckle 2 is pulled back towards the opening direction of the longitudinal space, so that the two anti-back hooks of the female buckle 1 are buckled in a matched mode, and the opening of the longitudinal space is closed. At this time, the arrow of the male buckle 2 does not completely occupy the longitudinal space of the female buckle 1, and a margin for arranging the HDPE pipe 3 and the adhesive 6 is left in the longitudinal space.
The HDPE pipe 3 can be pre-implanted into the female buckle 1, and can also be inserted into the longitudinal space to form fixation after the female buckle 1 is butted with the male buckle; as shown in fig. 4, one side of the HDPE pipe 3 is formed with a sieve hole to form a non-fixed surface, and the other side is not provided with a sieve hole to form a fixed surface, and as shown in fig. 5, the HDPE pipe 3 is attached to the box 1 by gluing (preferably, a longitudinal arc is formed in the longitudinal space of the box 1 for the fixed surface of the HDPE pipe 3 to attach), and the non-fixed surface of the HDPE pipe 3 faces the opening of the longitudinal space;
as shown in fig. 6, an adhesive 6 (preferably an epoxy type underwater adhesive) is poured into the longitudinal space through the holes of the HDPE pipe 3 under pressure, so that the longitudinal space and the connecting gaps between the female buckle 1 and the male buckle 2 are filled with the adhesive 6.
In a preferred embodiment, the cross-sectional length of the female buckle 1 and the male buckle 2 is 120-180mm, the thickness is 1-5mm, and the width of the arrow part is 15-25 mm.
And when the first HDPE film 7 and the second HDPE film 8 are respectively welded with the female buckle 1 and the male buckle 2 in a hot melting mode, the lap joint length is 80-120 mm.
The present invention has been described in detail with reference to the specific and preferred embodiments, but it should be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and any modifications, equivalents and the like, which are within the spirit and principle of the present invention, should be included in the scope of the present invention.
Claims (10)
1. The interlocking sealing device for the connection of the flexible vertical impervious wall system is characterized by comprising a female buckle and a male buckle, wherein the female buckle and the male buckle are made of HDPE materials and can be connected with an HDPE film in a hot melting welding mode;
a longitudinal space is formed in the female buckle, the longitudinal space is provided with an opening, the male buckle is arranged in the longitudinal space of the female buckle to form buckling connection, and the opening is closed;
HDPE pipes with sieve holes are further arranged in the longitudinal space along the longitudinal direction, and adhesives are filled into the longitudinal space through the sieve holes of the HDPE pipes.
2. The interlocking seal device for connecting a flexible vertical diaphragm wall system according to claim 1, wherein: one end of the cross section of the male buckle is used for being connected with an HDPE film, the other end of the cross section of the female buckle is provided with an arrow, one end of the cross section of the female buckle is used for being connected with another HDPE film, the other end of the cross section of the female buckle is provided with two separated clamp legs, the longitudinal space is formed between the two clamp legs, the tail ends of the two clamp legs are relatively recovered to form the opening, and the inner sides of the tail ends of the two clamp legs respectively form an anti-withdrawal hook for being matched and buckled with the arrow of the.
3. The interlocking seal device for connecting a flexible vertical diaphragm wall system according to claim 1 or 2, wherein: the one end that the son detained and is used for connecting the HDPE membrane is planar, the one end that the box was used for connecting the HDPE membrane is planar.
4. The interlocking seal device for connecting a flexible vertical diaphragm wall system according to claim 1, wherein: the HDPE pipe is characterized in that the sieve holes are formed in one side of the HDPE pipe to form a non-fixing surface, the sieve holes are not formed in the other side of the HDPE pipe to form a fixing surface, the HDPE pipe is attached to the female buckle through adhesive, and the non-fixing surface of the HDPE pipe faces the opening of the longitudinal space.
5. The interlocking seal device for connecting a flexible vertical diaphragm wall system according to claim 4, wherein: a longitudinal arc surface is formed in the longitudinal space of the female buckle so as to enable the fixing surface of the HDPE pipe to be attached.
6. An interlocking sealing method for connecting a flexible vertical impervious wall system is characterized by comprising the following steps:
(1) the first HDPE film is in hot-melt welding with one end of the female buckle, the second HDPE film is in hot-melt welding with one end of the male buckle, and the female buckle and the male buckle are both made of HDPE materials; the female buckle is internally provided with a longitudinal space which is provided with an opening, and the male buckle is arranged in the longitudinal space of the female buckle to form buckling connection and close the opening; HDPE pipes with sieve holes are arranged in the longitudinal space along the longitudinal direction;
(2) and injecting an adhesive into the longitudinal space through the sieve holes of the HDPE pipe, so that the longitudinal space and the connecting gaps of the female buckle and the male buckle are filled with the adhesive.
7. The interlocking sealing method for connecting a flexible vertical diaphragm wall system according to claim 6, wherein: in the step (1), a first HDPE film and the female buckle are firstly placed into the groove section which is excavated, and then a second HDPE film and the male buckle are longitudinally slid into the longitudinal space of the female buckle.
8. The interlocking sealing method for connecting a flexible vertical diaphragm wall system according to claim 6, wherein: the other end of the secondary buckle is provided with an arrow, the other end of the primary buckle is provided with two separated pliers legs, the longitudinal space is formed between the two pliers legs, the tail ends of the two pliers legs are relatively recovered to form the opening, and the inner sides of the tail ends of the two pliers legs respectively form an anti-withdrawal hook for being matched and buckled with the arrow of the secondary buckle.
9. The interlocking sealing method for connecting a flexible vertical diaphragm wall system according to claim 6, wherein: the HDPE pipe is pre-implanted into the female buckle, or is inserted into the longitudinal space to be fixed after the female buckle is butted with the male buckle.
10. The interlocking sealing method for connecting a flexible vertical diaphragm wall system according to claim 6, wherein: in the step (1), the sieve holes are formed on one side of the HDPE pipe to form a non-fixed surface, the sieve holes are not formed on the other side of the HDPE pipe to form a fixed surface, the HDPE pipe is attached to the female buckle through adhesive on the fixed surface, and the non-fixed surface of the HDPE pipe faces the opening of the longitudinal space.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110154662.4A CN112796351A (en) | 2021-02-04 | 2021-02-04 | Interlocking sealing device and method for connecting flexible vertical impervious wall system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110154662.4A CN112796351A (en) | 2021-02-04 | 2021-02-04 | Interlocking sealing device and method for connecting flexible vertical impervious wall system |
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| Publication Number | Publication Date |
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| CN112796351A true CN112796351A (en) | 2021-05-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110154662.4A Pending CN112796351A (en) | 2021-02-04 | 2021-02-04 | Interlocking sealing device and method for connecting flexible vertical impervious wall system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114215378A (en) * | 2021-12-16 | 2022-03-22 | 中科鼎实环境工程有限公司 | Installation method for guiding and fixing sealing water stop strip for geomembrane connection |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3632951A1 (en) * | 1986-09-27 | 1988-03-31 | Dynamit Nobel Ag | FLEXIBLE SEALING COATING |
| CN102367670A (en) * | 2011-09-13 | 2012-03-07 | 北京高能时代环境技术股份有限公司 | Triangular sealing device for connecting vertical soft barrier system |
| CN208180288U (en) * | 2018-05-16 | 2018-12-04 | 北京高能时代环境技术股份有限公司 | Vertical HDPE film flexibility baffle system and its attachment device |
| CN110173003A (en) * | 2019-06-25 | 2019-08-27 | 江苏新科工程仪器有限公司 | A kind of single-stage inserting occlusion sealing and connecting device of included sealing rod |
| CN214994119U (en) * | 2021-02-04 | 2021-12-03 | 中科鼎实环境工程有限公司 | Interlocking sealing device for connecting flexible vertical impervious wall system |
-
2021
- 2021-02-04 CN CN202110154662.4A patent/CN112796351A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3632951A1 (en) * | 1986-09-27 | 1988-03-31 | Dynamit Nobel Ag | FLEXIBLE SEALING COATING |
| CN102367670A (en) * | 2011-09-13 | 2012-03-07 | 北京高能时代环境技术股份有限公司 | Triangular sealing device for connecting vertical soft barrier system |
| CN208180288U (en) * | 2018-05-16 | 2018-12-04 | 北京高能时代环境技术股份有限公司 | Vertical HDPE film flexibility baffle system and its attachment device |
| CN110173003A (en) * | 2019-06-25 | 2019-08-27 | 江苏新科工程仪器有限公司 | A kind of single-stage inserting occlusion sealing and connecting device of included sealing rod |
| CN214994119U (en) * | 2021-02-04 | 2021-12-03 | 中科鼎实环境工程有限公司 | Interlocking sealing device for connecting flexible vertical impervious wall system |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114215378A (en) * | 2021-12-16 | 2022-03-22 | 中科鼎实环境工程有限公司 | Installation method for guiding and fixing sealing water stop strip for geomembrane connection |
| CN114215378B (en) * | 2021-12-16 | 2024-05-24 | 中科鼎实环境工程有限公司 | Installation method for guiding and fixing sealing water stop strips for geomembrane connection |
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