CN219486757U - Novel composite geomembrane lap joint structure - Google Patents
Novel composite geomembrane lap joint structure Download PDFInfo
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- CN219486757U CN219486757U CN202320204596.1U CN202320204596U CN219486757U CN 219486757 U CN219486757 U CN 219486757U CN 202320204596 U CN202320204596 U CN 202320204596U CN 219486757 U CN219486757 U CN 219486757U
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- overlap
- geotextile
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- edge
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- 239000002131 composite material Substances 0.000 title claims abstract description 34
- 239000004746 geotextile Substances 0.000 claims abstract description 66
- 239000012528 membrane Substances 0.000 claims abstract description 63
- 230000002265 prevention Effects 0.000 claims abstract description 44
- 238000003466 welding Methods 0.000 claims abstract description 33
- 238000010276 construction Methods 0.000 claims abstract description 21
- 150000001875 compounds Chemical class 0.000 claims abstract description 6
- 230000004888 barrier function Effects 0.000 claims 1
- 230000000694 effects Effects 0.000 description 6
- 239000004744 fabric Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000009194 climbing Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/30—Landfill technologies aiming to mitigate methane emissions
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- Processing Of Solid Wastes (AREA)
Abstract
The utility model discloses a novel composite geomembrane lap joint structure, which comprises an upper geotextile, a middle impermeable membrane and a lower geotextile which are sequentially laminated from top to bottom, and is characterized in that one side of the composite geomembrane is provided with a first lap joint edge, and the other side of the composite geomembrane is provided with a second lap joint edge; the bottom of first overlap edge is equipped with first overlap joint prevention of seepage membrane, and first overlap joint prevention of seepage membrane is connected with the middle level prevention of seepage membrane, the top of second overlap joint limit is equipped with the second overlap joint prevention of seepage membrane, and second overlap joint prevention of seepage membrane is connected with the middle level prevention of seepage membrane, and when welding two compound geomembrane, adjacent first overlap joint limit layer stacks and places in the second overlap joint limit, and first overlap joint prevention of seepage membrane is laminated and welded connection mutually with second overlap joint prevention of seepage membrane. The utility model has the characteristics of convenient lap joint and welding, stable seepage-proofing quality of lap joint welding seams, convenient construction, construction cost saving and the like.
Description
Technical Field
The utility model belongs to the technical field of waterproof coiled materials, and particularly relates to a novel composite geomembrane lap joint structure.
Background
At present, there are two types of overlapping edges of composite geomembranes in the market: the first method is to integrally compound an upper layer of geotextile and a lower layer of geotextile with the impermeable membrane, and the overlap joint edges are formed by the geotextile on the overlap joint contact surfaces, so that the geotextile can not be completely melted during construction overlap joint welding, and the formed overlap joint weld has unstable quality and is easy to leak; the second is that the upper and lower geotextile layers and the impermeable film are not compounded within a certain width range from the edge to form the three-layer separated joint edge of the upper geotextile layer, the middle impermeable film layer and the lower geotextile layer, the joint edge needs to be firstly jointed with the lower geotextile layer, then jointed with the middle impermeable film layer and finally jointed with the upper geotextile layer when in construction joint welding, the construction of the joint edge of the composite geotextile layer is complicated, and the construction cost is higher.
Disclosure of Invention
In order to solve the problems in the background art, the utility model provides a novel composite geomembrane overlap edge, which has the characteristics of convenience in overlap joint and welding, stable seepage-proofing quality of overlap joint welding seams, convenience in construction and construction cost saving.
The embodiment of the utility model is realized by the following technical scheme:
the novel composite geomembrane lap joint structure comprises an upper geotextile, a middle impermeable membrane and a lower geotextile which are arranged in a lamination manner from top to bottom, wherein one side of the composite geomembrane is provided with a first lap joint edge, and the other side of the composite geomembrane is provided with a second lap joint edge;
the bottom of first overlap edge is equipped with first overlap joint prevention of seepage membrane, and first overlap joint prevention of seepage membrane is connected with the middle level prevention of seepage membrane, the top of second overlap joint limit is equipped with the second overlap joint prevention of seepage membrane, and second overlap joint prevention of seepage membrane is connected with the middle level prevention of seepage membrane, and when welding two compound geomembrane, adjacent first overlap joint limit layer stacks and places in the second overlap joint limit, and first overlap joint prevention of seepage membrane is laminated and welded connection mutually with second overlap joint prevention of seepage membrane.
The first overlap edge is also provided with an upper layer overlap geotextile, the upper layer overlap geotextile is connected with the upper layer geotextile, and the upper layer overlap geotextile is integrally compounded with the first overlap impermeable membrane;
the second overlap edge is also provided with a lower layer overlap geotextile, the lower layer overlap geotextile is connected with the lower layer geotextile, and the lower layer overlap geotextile is integrally combined with the second overlap impermeable membrane.
The upper geotextile and the upper overlap geotextile are integrally arranged, the middle impermeable membrane, the first overlap impermeable membrane and the second overlap impermeable membrane are integrally arranged, and the lower geotextile and the lower overlap geotextile are integrally arranged.
And the welding seam between the first lap joint impermeable membrane and the second lap joint impermeable membrane is at least a double-rail welding seam.
The widths of the first joint edge and the second joint edge are the same, and the widths of the first joint edge and the second joint edge are 10cm-20cm.
The technical scheme of the utility model has at least the following advantages and beneficial effects:
(1) According to the utility model, the first lap joint impermeable film is arranged at the bottom of the first lap joint edge, the second lap joint impermeable film is arranged at the top of the second lap joint edge, and lap joint welding is carried out by utilizing the first lap joint impermeable film and the second lap joint impermeable film, so that the problems that the quality of a lap joint weld formed by the first composite geomembrane lap joint edge is unstable and easy to leak due to incomplete melting of the geotextile in construction lap joint welding due to the fact that the geotextile is arranged on the lap joint contact surface in the background art are solved, and the impermeable quality of the lap joint welding of the composite geomembrane is effectively improved.
(2) According to the utility model, the upper layer of overlap geotextile is integrally and compositely arranged at the top of the first overlap impervious film, and the lower layer of overlap geotextile is integrally and compositely arranged at the bottom of the second overlap impervious film, so that the problem of complicated construction of overlapping edges of the second composite geotextile, which are firstly overlapped with the lower layer of geotextile, then overlapped with the middle layer of the seepage impervious film and finally overlapped with the upper layer of geotextile when construction overlap welding is carried out in the background art is solved, and the construction efficiency is effectively improved, and the construction cost is saved.
(3) The utility model ensures the seepage-proofing quality of the joint edge of the composite geomembrane and the protection effect of the geotextile on the seepage-proofing membrane.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic illustration of the lap joint of the present utility model;
FIG. 3 is a schematic illustration of lap double track welding of the present utility model;
fig. 4 is a schematic illustration of lap joint three-rail welding of the present utility model.
Icon: 100-upper geotextile, 200-middle impermeable membrane, 300-lower geotextile, 400-first overlap edge, 401-first overlap impermeable membrane, 402-upper overlap geotextile, 500-second overlap edge, 501-second overlap impermeable membrane, 502-lower overlap geotextile, 600-double rail weld, 700-triple rail weld.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.
In the description of the present utility model, it should be noted that, if the azimuth or positional relationship indicated by the terms "inner", "outer", etc. appears to be based on the azimuth or positional relationship shown in the drawings, or the azimuth or positional relationship that the inventive product is conventionally put in use, it is merely for convenience of describing the present utility model and simplifying the description, and it is not indicated or implied that the apparatus or element referred to must have a specific azimuth, be configured and operated in a specific azimuth, and therefore should not be construed as limiting the present utility model.
In the description of the present utility model, it should also be noted that, unless explicitly stated and limited otherwise, the terms "disposed," "mounted," "configured," and "connected" should be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
Example 1
Referring to fig. 1-3, the present embodiment provides a novel composite geomembrane lap joint structure, where the composite geomembrane includes an upper geotextile 100, a middle impermeable membrane 200 and a lower geotextile 300 stacked in sequence from top to bottom, one side of the composite geomembrane is configured with a first lap joint edge 400, and the other side of the composite geomembrane is configured with a second lap joint edge 500;
the bottom of first overlap edge 400 is equipped with first overlap prevention film 401, and first overlap prevention film 401 is connected with middle layer prevention film 200, the top of second overlap edge 500 is equipped with second overlap prevention film 501, and second overlap prevention film 501 is connected with middle layer prevention film 200, when welding two compound geomembrane adjacent sides, adjacent first overlap edge 400 stacks in second overlap edge 500, and first overlap prevention film 401 is laminated and welded connection mutually with second overlap prevention film 501.
Through setting up first overlap joint prevention of seepage membrane 401 and second overlap joint prevention of seepage membrane 501 to make the contact surface of overlap joint be the prevention of seepage membrane of easy fusion, thereby guaranteed overlap joint seam quality stability, the overlap joint seam quality who forms is high, has improved compound geomembrane overlap joint welded prevention of seepage quality, has construction convenience, saves the characteristics of cost.
Further, referring to fig. 1, the first overlap edge 400 is further provided with an upper layer of overlap geotextile 402, the upper layer of overlap geotextile 402 is connected to the upper layer of geotextile 100, and the upper layer of overlap geotextile 402 is integrally combined with the first overlap impermeable membrane 401; the second overlap edge 500 is further provided with a lower layer of overlap geotextile 502, the lower layer of overlap geotextile 502 is connected with the lower layer of geotextile 300, and the lower layer of overlap geotextile 502 is integrally combined with the second overlap impermeable membrane 501; through setting up upper strata overlap joint geotechnique fabric 402 and lower floor overlap joint geotechnique fabric 502, realized the guard action to first overlap joint prevention of seepage membrane 401 and second overlap joint prevention of seepage membrane 501, and it is fixed with first overlap joint prevention of seepage membrane 401 to adopt the mode of whole complex to overlap joint geotechnique fabric 402 on the upper strata, lower floor overlap joint geotechnique fabric 502 is fixed with second overlap joint prevention of seepage membrane 501, further improved the protection effect to first overlap joint prevention of seepage membrane 401 and second overlap joint prevention of seepage membrane 501, thereby guaranteed the life of overlap joint first overlap joint prevention of seepage membrane 401 and second overlap joint prevention of seepage membrane 501, and when overlap joint, need not to weld the fixation again to geotechnique fabric, thereby simplified the process when welding construction, construction cost has been practiced thrift.
Further, in this embodiment, the upper geotextile 100 is integrally formed with the upper overlap geotextile 402, the middle impermeable membrane 200, the first overlap impermeable membrane 401 and the second overlap impermeable membrane 501 are integrally formed, and the lower geotextile 300 is integrally formed with the lower overlap geotextile 502.
In this embodiment, referring to fig. 1 and 2, the widths of the first overlap edge 400 and the second overlap edge 500 are the same, and the widths of the first overlap edge 400 and the second overlap edge 500 are 10cm, when welding the adjacent sides of two composite geomembranes, referring to fig. 2, overlap joint is performed, then a double-track welding machine with an effective welding width of 10cm is adopted to weld according to fig. 3 and form a double-track welding seam 600, and the welding is completed, so that the overlapping and welding of the composite geomembranes are completed, meanwhile, the protection effect of geotextiles on the impermeable membranes at the overlap edges of the composite geomembranes is ensured, the construction is fast and easy, and the effects of stable impermeable quality of the overlapping welding seam and construction cost saving are achieved.
Example 2
The present embodiment provides a novel composite geomembrane lapping structure, please refer to fig. 4, and compared with embodiment 1, the difference of this embodiment is that:
the widths of the first joint edge 400 and the second joint edge 500 are the same, the widths of the first joint edge 400 and the second joint edge 500 are 15cm, when two adjacent sides of the composite geomembranes are welded, please refer to 2 for lap joint, then a three-rail climbing welder with the effective welding width of 15cm is adopted for welding according to the attached drawing 4 to form a three-rail welding seam 700, the lap joint and welding of the composite geomembranes are completed after the welding, meanwhile, the protection effect of geotextiles on impermeable membranes at the joint edges of the composite geomembranes is guaranteed, the construction is quick and easy, and the effects of stable seepage-proofing quality of the lap joint welding seam and construction cost saving are achieved.
Other features of this embodiment are the same as those of embodiment 1 or embodiment 2, and will not be described again.
It should be noted that, the widths of the first overlapping edge 400 and the second overlapping edge 500 may be adaptively adjusted according to actual needs, but the widths should be required to ensure the connection strength of the welding seam.
The above is only a preferred embodiment of the present utility model, and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (5)
1. The novel composite geomembrane lap joint structure is characterized in that one side of the composite geomembrane is provided with a first lap joint edge, and the other side of the composite geomembrane is provided with a second lap joint edge;
the bottom of first overlap edge is equipped with first overlap joint prevention of seepage membrane, and first overlap joint prevention of seepage membrane is connected with the middle level prevention of seepage membrane, the top of second overlap joint limit is equipped with the second overlap joint prevention of seepage membrane, and second overlap joint prevention of seepage membrane is connected with the middle level prevention of seepage membrane, and when welding two compound geomembrane, adjacent first overlap joint limit layer stacks and places in the second overlap joint limit, and first overlap joint prevention of seepage membrane is laminated and welded connection mutually with second overlap joint prevention of seepage membrane.
2. The novel composite geomembrane overlap structure according to claim 1, characterized in that,
the first overlap edge is also provided with an upper layer overlap geotextile, the upper layer overlap geotextile is connected with the upper layer geotextile, and the upper layer overlap geotextile is integrally compounded with the first overlap impermeable membrane;
the second overlap edge is also provided with a lower layer overlap geotextile, the lower layer overlap geotextile is connected with the lower layer geotextile, and the lower layer overlap geotextile is integrally combined with the second overlap impermeable membrane.
3. The novel composite geomembrane lapping structure of claim 2, wherein the upper geotextile is integrally formed with the upper geotextile, the middle impermeable membrane, the first lap impermeable membrane and the second lap impermeable membrane are integrally formed, and the lower geotextile is integrally formed with the lower geotextile.
4. A novel composite geomembrane overlap construction according to any of claims 1 to 3 wherein the weld between the first and second overlapping barrier membranes is at least a double track weld.
5. The novel composite geomembrane overlap structure of claim 4, wherein the first overlap edge and the second overlap edge have the same width and the first overlap edge and the second overlap edge have a width of 10cm to 20cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320204596.1U CN219486757U (en) | 2023-02-08 | 2023-02-08 | Novel composite geomembrane lap joint structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320204596.1U CN219486757U (en) | 2023-02-08 | 2023-02-08 | Novel composite geomembrane lap joint structure |
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| Publication Number | Publication Date |
|---|---|
| CN219486757U true CN219486757U (en) | 2023-08-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202320204596.1U Active CN219486757U (en) | 2023-02-08 | 2023-02-08 | Novel composite geomembrane lap joint structure |
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| CN (1) | CN219486757U (en) |
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- 2023-02-08 CN CN202320204596.1U patent/CN219486757U/en active Active
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