CN103758157A - Method for paving HDPE (high-density polyethylene) geomembranes in refuse landfill - Google Patents
Method for paving HDPE (high-density polyethylene) geomembranes in refuse landfill Download PDFInfo
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- CN103758157A CN103758157A CN201110456823.1A CN201110456823A CN103758157A CN 103758157 A CN103758157 A CN 103758157A CN 201110456823 A CN201110456823 A CN 201110456823A CN 103758157 A CN103758157 A CN 103758157A
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- geomembranes
- hdpe
- compressed air
- hdpe geomembrane
- refuse landfill
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Abstract
The invention discloses a method for paving HDPE (high-density polyethylene) geomembranes in a refuse landfill. The method comprises the following steps: (1) clipping and lapping: clipping the HDPE geomembranes, and lapping the geomembranes in and around a reservoir area; (2) sweat soldering: inflating compressed air between an upper piece and a lower piece which are lapped, so as to form a compressed air channel, forming welded joints at the left and right sides of the compressed air channel, thermally melting the two geomembranes, butting the geomembranes quickly after the temperature is reached, and welding the welded joints; and (3) inspection and repair: inspecting the HDPE geomembranes which are thermally welded, inspecting the damaged parts of the paved HDPE geomembranes, clipping the sections if the damaged parts are more than the width of each HDPE geomembranes by more than 10%, and repaving. By adopting a method of inflating the compressed air in the geomembranes, cracked welded joints are not generated when the surplus materials are chipped and torn down after the paving is finished, so that the repair cost can be reduced.
Description
Technical field
The present invention relates to a kind of method of laying HDPE geomembrane in refuse landfill, belong to environmental technology field.
Background technology
Refuse landfill reservoir area is normally built on the acclive landform of tool, the terrain slope of reservoir area body exterior is that nature is downward, include seepage control system and guide system, seepage control system refer in the body of reservoir area and reservoir area around substrate soil upper berth establish impervious material, prevent the percolate secondary pollution that permeates the ground; Guide system refers to by laying two-layer pipeline, guide substrate soil gathers because build refuse landfill reservoir area respectively underground water and percolate.
HDPE is high density polyethylene (HDPE), has high anti-seepage effect, and HDPE geomembrane is gradually more for the seepage control system of refuse landfill.After existing HDPE geomembrane overlaps, easily in weld fracture, cause the wasting of resources, and after long-term use, easily occur Seepage while in the end shearing, construction cost is high, and follow-up maintenance cost is high.
Summary of the invention
For solving the problems of the technologies described above, the invention provides a kind of laying method of refuse landfill HDPE geomembrane, not easy to leak of weld consolidation, smooth welded seam, reduces later maintenance cost.
The present invention realizes by following technical scheme:
A laying method for refuse landfill HDPE geomembrane is to realize by following step:
(1) cut out and overlap, HDPE geomembrane is cut out, around reservoir area and reservoir area, overlapping;
(2) sweat soldering, overlap joint upper slice and between lower, blast compressed air, form compressed air channel, at described compressed air channel the right and left, form weld seam, two HDPE geomembranes are carried out to hot melt, after arrival temperature, dock rapidly, and weld in described commissure;
(3) check and repair, the HDPE geomembrane after sweat soldering is completed checks, checks the damage part of the HDPE geomembrane of laying, and damages part and is greater than the more than 10% of every HDPE geomembrane width, this section is sheared, and again lays.
Hot melting temperature in described step (2) is 100-150 ℃.
Welding temperature in described step (2) is 450-480 ℃.
Beneficial effect of the present invention is:
1, weld of the present invention is smooth, and not easy to leak is difficult for tearing;
2, frequency of maintenance of the present invention reduces, and maintenance cost is low.
Accompanying drawing explanation
Fig. 1 is that refuse landfill HDPE geomembrane of the present invention is laid welding schematic diagram
The specific embodiment
Below in conjunction with accompanying drawing, the present invention will be further described.
1, cut out and overlap, HDPE geomembrane is cut out, around reservoir area and reservoir area, overlapping;
2, sweat soldering, as Fig. 1, that refuse landfill HDPE geomembrane of the present invention is laid welding schematic diagram, HDPE geomembrane upper slice 61 and lower 62 overlap, overlap joint upper slice and between lower, blast compressed air, form compressed air channel 17, at described compressed air channel the right and left, form weld seam 15 and 16, two HDPE geomembranes are carried out to hot melt, hot melting temperature remains on 100-150 ℃, after arriving temperature, dock rapidly, and weld at described weld seam 15 and 16 places, welding temperature is 450-480 ℃;
3, check and repair, the HDPE geomembrane after sweat soldering is completed checks, checks the damage part of the HDPE geomembrane of laying, and damages part and is greater than the more than 10% of every HDPE geomembrane width, this section is sheared, and again lays.
Claims (3)
1. a laying method for refuse landfill HDPE geomembrane, it is characterized in that realizing by following step:
(1) cut out and overlap, HDPE geomembrane is cut out, around reservoir area and reservoir area, overlapping;
(2) sweat soldering, overlap joint upper slice and between lower, blast compressed air, form compressed air channel, at described compressed air channel the right and left, form weld seam, two HDPE geomembranes are carried out to hot melt, after arrival temperature, dock rapidly, and weld in described commissure;
(3) check and repair, the HDPE geomembrane after sweat soldering is completed checks, checks the damage part of the HDPE geomembrane of laying, and damages part and is greater than the more than 10% of every HDPE geomembrane width, this section is sheared, and again lays.
2. the laying method of refuse landfill HDPE geomembrane as claimed in claim 1, is characterized in that the hot melting temperature in described step (2) is 100-150 ℃.
3. the laying method of refuse landfill HDPE geomembrane as claimed in claim 1, is characterized in that the welding temperature in described step (2) is 450-480 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110456823.1A CN103758157B (en) | 2011-12-27 | 2011-12-27 | The laying method of refuse landfill HDPE geomembrane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110456823.1A CN103758157B (en) | 2011-12-27 | 2011-12-27 | The laying method of refuse landfill HDPE geomembrane |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103758157A true CN103758157A (en) | 2014-04-30 |
| CN103758157B CN103758157B (en) | 2016-11-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110456823.1A Expired - Fee Related CN103758157B (en) | 2011-12-27 | 2011-12-27 | The laying method of refuse landfill HDPE geomembrane |
Country Status (1)
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| CN (1) | CN103758157B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105201024A (en) * | 2015-09-17 | 2015-12-30 | 中国市政工程西北设计研究院有限公司 | HDPE (High-Density PolyEthylene) membrane rain sewage diversion drainage canal for refuse landfill |
| CN111331849A (en) * | 2020-03-03 | 2020-06-26 | 北京高能时代环境技术股份有限公司 | Composite HDPE (high-density polyethylene) film prevention and control system for emergency facility base and construction method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3834664A1 (en) * | 1988-10-12 | 1990-04-19 | Niederberg Chemie | Welding and seam testing in an earth trench |
| CN1785846A (en) * | 2005-10-21 | 2006-06-14 | 同济大学 | Method of proceeding percolate treatment using ventilation buring layer |
-
2011
- 2011-12-27 CN CN201110456823.1A patent/CN103758157B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3834664A1 (en) * | 1988-10-12 | 1990-04-19 | Niederberg Chemie | Welding and seam testing in an earth trench |
| CN1785846A (en) * | 2005-10-21 | 2006-06-14 | 同济大学 | Method of proceeding percolate treatment using ventilation buring layer |
Non-Patent Citations (4)
| Title |
|---|
| 傅凤书: "高密度聚乙烯（HDPE）膜垫衬防渗在深圳市下坪生活垃圾卫生填埋场的应用", 《环境与开发》, vol. 12, no. 12, 31 March 1997 (1997-03-31) * |
| 刘宗琼等: "垃圾坝HDPE膜防渗体施工", 《建筑技术》, vol. 34, no. 07, 16 July 2003 (2003-07-16) * |
| 张耀钧: "城市生活垃圾卫生填埋场的HDPE土工膜防渗技术", 《中国建筑防水》, no. 03, 20 March 2003 (2003-03-20) * |
| 荣保铭等: "浅议HDPE防渗膜在垃圾填埋场中的施工工艺", 《科技信息》, no. 27, 31 December 2010 (2010-12-31) * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105201024A (en) * | 2015-09-17 | 2015-12-30 | 中国市政工程西北设计研究院有限公司 | HDPE (High-Density PolyEthylene) membrane rain sewage diversion drainage canal for refuse landfill |
| CN105201024B (en) * | 2015-09-17 | 2017-06-16 | 中国市政工程西北设计研究院有限公司 | Refuse landfill HDPE film rain dirt separation panel water channel |
| CN111331849A (en) * | 2020-03-03 | 2020-06-26 | 北京高能时代环境技术股份有限公司 | Composite HDPE (high-density polyethylene) film prevention and control system for emergency facility base and construction method |
| WO2021174818A1 (en) * | 2020-03-03 | 2021-09-10 | 北京高能时代环境技术股份有限公司 | Composite hdpe membrane-based prevention and control system for emergency facility base, and construction method |
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| CN103758157B (en) | 2016-11-23 |
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| PB01 | Publication | ||
| ASS | Succession or assignment of patent right |
Owner name: HANGZHOU QIANXI ENVIRONMENTAL PROTECTION TECHNOLOG Free format text: FORMER OWNER: HANGZHOU ZHONGQIN ENVIRONMENTAL PROTECTION ENGINEERING CO., LTD. Effective date: 20140414 |
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Effective date of registration: 20140414 Address after: Hangzhou City, Zhejiang province 310005 Gongshu District 368 South Zhejiang rent building Room 301 Applicant after: HANGZHOU QIANXI ENVIRONMENTAL PROTECTION SCIENCE & TECHNOLOGY CO., LTD. Address before: Hangzhou City, Zhejiang province 310005 Gongshu District beauty mills A block 602, room 604 Applicant before: HANGZHOU ZHONGQIN ENVIRONMENTAL PROTECTION ENGINEERING CO., LTD. |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161123 Termination date: 20161227 |
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| CF01 | Termination of patent right due to non-payment of annual fee |