CN108000983A - It is a kind of for the refuse landfill pad system locally settled - Google Patents
It is a kind of for the refuse landfill pad system locally settled Download PDFInfo
- Publication number
- CN108000983A CN108000983A CN201711257748.XA CN201711257748A CN108000983A CN 108000983 A CN108000983 A CN 108000983A CN 201711257748 A CN201711257748 A CN 201711257748A CN 108000983 A CN108000983 A CN 108000983A
- Authority
- CN
- China
- Prior art keywords
- composite material
- resistor disc
- geotextiles
- spunbond
- cement
- 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.)
- Granted
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B13/00—Layered products comprising a a layer of water-setting substance, e.g. concrete, plaster, asbestos cement, or like builders' material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE
- B09B1/00—Dumping solid waste
- B09B1/004—Covering of dumping sites
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B13/00—Layered products comprising a a layer of water-setting substance, e.g. concrete, plaster, asbestos cement, or like builders' material
- B32B13/14—Layered products comprising a a layer of water-setting substance, e.g. concrete, plaster, asbestos cement, or like builders' material next to a fibrous or filamentary layer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/12—Layered products comprising a layer of synthetic resin next to a fibrous or filamentary layer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
- B32B2262/02—Synthetic macromolecular fibres
- B32B2262/0276—Polyester fibres
Abstract
The present invention relates to a kind of for the refuse landfill pad system locally settled, include cement base engineered composite material, the spunbond geotextiles of polyester, HDPE anti-seepage geomembranes from top to bottom, wherein cement base engineered composite material bottom is embedded with some and extraneous unicom resistor disc, and the change that can pass through electric current provides early warning to the tensile property of liner system.One or multi-channel drainage system can be set according to actual conditions more than cement base engineered composite material.Present invention design is reasonable, easy for construction, simple efficient, can mitigate harm of the local sedimentation to liner system well.
Description
Technical field
The present invention relates to a kind of for the refuse landfill pad system locally settled, belong to garbage loading embeading treatment technology neck
Domain.
Background technology
Domestic waste is handled both at home and abroad at present mainly by the way of sanitary landfills, its landfill leachate office produced
Portion's leakage becomes one of refuse landfill main hazard.Liner system is the most important part of landfill yard, is included in landfill
The impervious lining that bottom and sidepiece are laid with, its main purpose be prevent soil and groundwater around Landfill Leachate Pollution,
Avoid underground water intrusion landfill yard and prevent the lateral transfer in landfill gas peripherally area.Therefore, its rational planning and construction
Quality be related to landfill yard can normal operation key.
" if karst " geomorphologic subregion basis is not handled well, or tamps leakiness at underground water collection conduit, in rubbish
Rubbish weight and compacting machinary are rolled under effect, and the soil body that crouches under liner system very likely produces local sedimentation.The sleeping soil body is local down
Sedimentation can cause liner system to produce larger stretching strain, cause liner system tensile failure or hydraulic performance decline, influence use
Performance, even results in percolate outflow when serious.
Problem is destroyed for liner system caused by local settle, the researcher of each side studies to it,
But the current still preferable solution of neither one.
The present invention replaces the TGXG in conventional cushion system using cement base engineered composite material, is carried to liner system
For intensity.Cement base engineered composite material, or the cementing composite material of engineering, abbreviation ECC are one kind in stretching and shear load
The lower fiber reinforced cement-based composite material that high ductibility is presented.Due to the presence of the bridging stress of staple fiber, its tensile property
It is very good.At present, the obtained application of ECC is less, has only been played in building 3D printing, structural strengthening technology etc..Such as
What expands the application surface of ECC materials, the topic also discussed as people.
The content of the invention
In order to make up foregoing the deficiencies in the prior art, the present invention proposes a kind of strong using the raising of cement base engineered composite material
The liner system design of degree.Present invention improves over traditional liner system, and traditional soil is substituted with cement base engineered composite material
Work grid so that the tensile strength of liner system improves, and avoids in local settlement action underpad system tensile failure；Padding
When system has been subjected to larger pulling force, cement base engineered composite material still has larger tensile strength, effectively limits geomembrane upper stress
Further increasing；Because the characteristics of cement base engineered composite material can be produced compared with multiple cracking before tensile strength is reached,
Before percolate finally touches anti-seepage geomembrane, percolate can first penetrate through cement base engineered composite material, touch water
The resistor disc of mud base engineered composite material bottom, changes resistance value, so as to outwardly send early warning with the change of electric current.
To achieve these goals, the present invention adopts the following technical scheme that：
It is proposed by the present invention a kind of spunbond for the landfill pad system locally settled, including cement-base composite material 1, polyester
Geotextiles 2, HDPE anti-seepage geomembranes 3 and the resistor disc 4 with external circuitry unicom.It is characterized in that：The cement base is answered
The spunbond geotextiles 2 of condensation material 1, polyester, HDPE anti-seepage geomembranes 3 are arranged in order from top to bottom.The cement-base composite material 1
Play the role of to whole liner system increase tensile strength, limitation liner system deformation, thickness is 50mm ~ 100mm；Resistor disc
4 between cement-base composite material 1 and the spunbond geotextiles 2 of polyester, and resistor disc 4 and external circuitry unicom；The resistance
The effect of piece 4 is after percolate, the resistance that contamination leaks change, and by curent change, early warning is sent to the external world；
Because after being infected with percolate, the change amplitude of resistance is larger, and resistor disc precision used need not be very high, takes 5% resistor disc i.e.
Can.
In the present invention, the spunbond geotextiles 2 of the polyester and 3 thickness of HDPE anti-seepage geomembranes are respectively 10mm ~ 20mm.
In the present invention, the landfill pad system is arranged at the bottom of liner system, or is arranged at multiple tracks guide system 5
Between position.
In the present invention, the cement-base composite material 1 uses prefabricated board, it is directly layed in described gather at the scene
On the spunbond geotextiles 2 of ester.
In the present invention, 5 top of guide system is laid with overlying rubbish 6.
Compared with prior art, beneficial effects of the present invention are as follows：
1st, the present invention compares traditional liner system, its tensile strength is improved.When locally sedimentation occur when, pulling force mainly by
Cement base engineered composite material undertakes, and avoids liner system tensile failure.When moderate finite deformation occurs for liner system, cement base work
Journey composite material still has very big intensity, reduces the stress increment in geomembrane.
2nd, the deformation present invention decreases liner system when locally settling, reduces the stress in geomembrane, so as to prolong
The service life of liner system is grown.
3rd, reasonable utilization of the present invention to ECC materials so that ECC materials can be applied to preferably in production and living.
4th, early warning system is introduced liner system by the present invention, is changed traditional detection mode, can be drawn in geomembrane
Before bad, early warning is sent in advance, and conveniently adopting various measures, it is bad to prevent that geomembrane from drawing, and improves the security of liner system.
Brief description of the drawings
Fig. 1 is invention schematic diagram；
Fig. 2 is inventive embodiments figure；
Figure label：1 is cement base engineered composite material, and 2 be the spunbond geotextiles of polyester, and 3 be HDPE anti-seepage geomembranes, 4 be with
The resistor disc of external circuitry unicom, 5 be guide system, and 6 be overlying rubbish, and 7 be the lower sleeping soil body.
Embodiment
The embodiment that the invention will now be described in detail with reference to the accompanying drawings.
Embodiment 1：
As depicted in figs. 1 and 2, of the invention a kind of for the refuse landfill pad system embodiment locally settled, it is located at
The bottom of unitary pad system, mainly includes cement base engineered composite material 1, the spunbond geotextiles 2 of polyester, HDPE antiseepages geotechnique
Film 3, the resistor disc 4 with external circuitry unicom.
Before the liner system is laid with, the sleeping soil body 7 is compacted under should first ensureing, in original one layer of clay in soil body upper berth and is pressed
It is actually suitable.Then, geomembrane 3, geotextiles 2, cement-base composite material 1 are laid with successively on the lower sleeping soil body 7.It is compound in cement base
On material 1, then the guide system 5 of processing percolate is set, then fills overlying rubbish 6.It is being laid with cement-base composite material 1
When, pre-buried two panels resistor disc is in its bottom.
When generation locally settles, liner system locally declines and tension together with the lower sleeping soil body.At this time, in liner system
Each component tension.The sleeping soil body further settles down, because the presence of cement-base composite material, the pad in local subsidence range
System variant is restricted, and the stress in geomembrane will not further increase or to increase speed slower.When pulling force increases to one
When determining degree, there is crack in cement-base composite material, while mechanical characteristic changes less.If oozed under landfill leachate, Ke Yitong
Cement-base composite material is crossed, touches resistor disc.The electric current of resistor disc changes at this time, passes through circuit communication to extraneous electricity
On the detecting instruments such as flow table, alarm is sent to the external world.The present invention plays the role of protecting geomembrane.
The preferably feasible embodiment of the above-mentioned only present invention, the non-therefore limitation scope of the present invention, according to above-described embodiment
Made various modifications are applied mechanically within this technical solution protection domain.
Claims (5)
- It is 1. a kind of for the landfill pad system locally settled, including cement-base composite material（1）, the spunbond geotextiles of polyester （2）, HDPE anti-seepage geomembranes（3）And the resistor disc with external circuitry unicom（4）, it is characterised in that：The cement base is answered Condensation material（1）, the spunbond geotextiles of polyester（2）, HDPE anti-seepage geomembranes（3）It is arranged in order from top to bottom, the cement base is answered Condensation material（1）Play the role of increase to whole liner system tensile strength, limitation liner system deformation, thickness for 50mm ~ 100mm；Resistor disc（4）Positioned at cement-base composite material（1）With the spunbond geotextiles of polyester（2）Between, and resistor disc（4）With the external world Circuit communication；The resistor disc（4）Effect be after the contamination percolate, the resistance that leak change, pass through electricity Rheology, early warning is sent to the external world；Because after being infected with percolate, the change amplitude of resistance is larger, and resistor disc precision used need not It is very high, take 5% resistor disc.
- It is 2. according to claim 1 a kind of for the landfill pad system locally settled, it is characterised in that：Described is poly- The spunbond geotextiles of ester（2）With HDPE anti-seepage geomembranes（3）Thickness is respectively 10mm ~ 20mm.
- It is 3. according to claim 1 a kind of for the landfill pad system locally settled, it is characterised in that：The landfill Field liner system is arranged at the bottom of liner system, or is arranged at multiple tracks guide system（5）Between position.
- It is 4. according to claim 1 a kind of for the landfill pad system locally settled, it is characterised in that：The water Cement-based composite material（1）Using prefabricated board, it is directly layed in the spunbond geotextiles of polyester at the scene（2）On.
- It is 5. according to claim 1 a kind of for the landfill pad system locally settled, it is characterised in that：The guide System（5）Top is laid with overlying rubbish（6）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711257748.XA CN108000983B (en) | 2017-12-04 | 2017-12-04 | Landfill liner system for local settlement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711257748.XA CN108000983B (en) | 2017-12-04 | 2017-12-04 | Landfill liner system for local settlement |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108000983A true CN108000983A (en) | 2018-05-08 |
| CN108000983B CN108000983B (en) | 2019-12-27 |
Family
ID=62056243
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711257748.XA Active CN108000983B (en) | 2017-12-04 | 2017-12-04 | Landfill liner system for local settlement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108000983B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5661406A (en) * | 1995-09-27 | 1997-08-26 | Leak Location Services, Inc. | Methods for detecting and locating leaks in containment facilities using electrical potential data and electrical resistance tomographic imaging techniques |
| US5914603A (en) * | 1997-02-20 | 1999-06-22 | The Regents Of The University Of California | Electrical resistance tomography using steel cased boreholes as electrodes |
| CN1621823A (en) * | 2003-11-26 | 2005-06-01 | 中国环境科学研究院 | Electricity detecting method and equipment for leakage of refuse landfill leaking-proof layer |
| CN201554043U (en) * | 2009-12-14 | 2010-08-18 | 苏州市环境卫生管理处 | Middle anti-seepage liner structure for preventing local sinking in refuse landfill |
| CN201730116U (en) * | 2010-07-28 | 2011-02-02 | 北京高能时代环境技术股份有限公司 | High-density polyethylene geomembrane used for preventing leakage of waste water |
| CN102179393A (en) * | 2011-01-30 | 2011-09-14 | 安徽中南环保科技研究所 | Method for landfill treatment |
| CN104863189A (en) * | 2015-04-28 | 2015-08-26 | 中国科学院武汉岩土力学研究所 | Damage and leakage detection system for impermeable layer of refuse landfill |
| CN106759527A (en) * | 2016-12-29 | 2017-05-31 | 浙江大学 | It is a kind of extend heavy metal ion breakdown time landfill site seepage prevention system and puncture monitoring method |
-
2017
- 2017-12-04 CN CN201711257748.XA patent/CN108000983B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5661406A (en) * | 1995-09-27 | 1997-08-26 | Leak Location Services, Inc. | Methods for detecting and locating leaks in containment facilities using electrical potential data and electrical resistance tomographic imaging techniques |
| US5914603A (en) * | 1997-02-20 | 1999-06-22 | The Regents Of The University Of California | Electrical resistance tomography using steel cased boreholes as electrodes |
| CN1621823A (en) * | 2003-11-26 | 2005-06-01 | 中国环境科学研究院 | Electricity detecting method and equipment for leakage of refuse landfill leaking-proof layer |
| CN201554043U (en) * | 2009-12-14 | 2010-08-18 | 苏州市环境卫生管理处 | Middle anti-seepage liner structure for preventing local sinking in refuse landfill |
| CN201730116U (en) * | 2010-07-28 | 2011-02-02 | 北京高能时代环境技术股份有限公司 | High-density polyethylene geomembrane used for preventing leakage of waste water |
| CN102179393A (en) * | 2011-01-30 | 2011-09-14 | 安徽中南环保科技研究所 | Method for landfill treatment |
| CN104863189A (en) * | 2015-04-28 | 2015-08-26 | 中国科学院武汉岩土力学研究所 | Damage and leakage detection system for impermeable layer of refuse landfill |
| CN106759527A (en) * | 2016-12-29 | 2017-05-31 | 浙江大学 | It is a kind of extend heavy metal ion breakdown time landfill site seepage prevention system and puncture monitoring method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108000983B (en) | 2019-12-27 |
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