CN109371773A - Anti-filter antiseepage overlay film drainage network and preparation method - Google Patents
Anti-filter antiseepage overlay film drainage network and preparation method Download PDFInfo
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- CN109371773A CN109371773A CN201811462906.XA CN201811462906A CN109371773A CN 109371773 A CN109371773 A CN 109371773A CN 201811462906 A CN201811462906 A CN 201811462906A CN 109371773 A CN109371773 A CN 109371773A
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- antiseepage
- filter
- rib
- drainage
- overlay film
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C3/00—Foundations for pavings
- E01C3/06—Methods or arrangements for protecting foundations from destructive influences of moisture, frost or vibration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D28/00—Producing nets or the like, e.g. meshes, lattices
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
- E02D3/02—Improving by compacting
- E02D3/10—Improving by compacting by watering, draining, de-aerating or blasting, e.g. by installing sand or wick drains
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- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Civil Engineering (AREA)
- Agronomy & Crop Science (AREA)
- Architecture (AREA)
- Mechanical Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Soil Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- General Engineering & Computer Science (AREA)
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Abstract
The present invention provides a kind of anti-filter antiseepage overlay film drainage networks, the drainage network includes the geotextile layer successively arranged from top to bottom, three dimensional network sandwich layer and impervious barrier, the thickness ratio of the geotextile layer, three dimensional network sandwich layer and impervious barrier is 1:(3~6): (2~3), the present invention also provides the preparation methods of above-mentioned drainage network.The present invention solves in the prior art, three-dimensional composite drainage network needs respectively to pave antiseepage film and drainage network in the construction process, complex procedures, spend the problem that the time is long, it only needs once to pave and provides for complete draining-big function of antiseepage-anti-filter-protection four, the rib of three dimensional network sandwich layer is arranged in a staggered fashion, not only make tensile strength and the anti-compression properties of drainage network very high, soil body insertion drainage channel can also be avoided to cause to block, reduce drainability, three dimensional network sandwich layer is combined with the characteristic of the draining protective effect of the reverse filter effect and bottom cloth layer of geotextile layer.
Description
Technical field
The invention belongs to the old fields of building material technology, and in particular to anti-filter antiseepage overlay film drainage network and preparation method.
Background technique
Water is an important factor for influencing pavement structure, road foundation self-strength and stability.According to the country of China
A plurality of express highway roadbed and road surface the structure used has been put into damage, in the ad hoc survey of disease, water is confirmed to be
It is the main cause for causing road life reduction, subgrade strength, stability decline.So the underground water of road surface and roadbed excludes work
Make, to Road Service Life is increased, saves maintenance cost and be very important.Surface water and underground water are to influence roadbed road
The principal element of water content in face, surface water include the water of Atmospheric precipitation, rivers,lakes and seas and ditch reservoir.The harm of surface water
It shows as to the damaging souring of road foundation, have osmosis to Roadbed Soil.It is stagnant that underground water can be subdivided into upper layer
Intermediary water between water, underground latent water and stratum has any different to the adverse effect of road foundation because of actual conditions.
The main purpose of subgrade drainage be the water content control in roadbed filling in a certain range, enable roadbed
Certain drying regime is enough kept, guarantees the intensity and general stability of roadbed and pavement structure.Geosynthetics is claimed
For the 4th kind of important construction material except timber, reinforcing bar and concrete, the filtration itself having, drainage,
Buffer action, reinforced action, protective action and antiseepage act on this six functions, so that geosynthetics is able to solve building work
Many insurmountable engineering problems of conventional material in Cheng Jianshe, and have that easy construction, quality controllable, investment is smaller and answer
With the good feature of effect.
Three-dimensional composite drainage network is a kind of novel draining earth working material, is usually original with high density polyethylene (HDPE) (HDPE)
Material, is process through special extrusion molding process, has three layers of special construction.The rib of intermediate longitudinal arrangement is rigidly big, can
To form support construction, prevents geotextiles to be embedded in drainage channel, be able to maintain very high drainage under very high load
Energy.Firstly, drainage network is laid between ground and base, for ponding between ground and base to be discharged, capillary water is blocked simultaneously
It is emitted efficiently into edge drainage system.This structure shortens the draining water way of ground automatically, and water discharge time shortens significantly,
The service life of road can be extended.It can prevent base fines from entering ground secondly, being laid with three-dimensional composite drainage network in underlayment
Buffer action (namely plays) in base, and aggregate base can enter the top section of geonet in limited extent.In this way, compound
There are also the effect of the potential limitation aggregate base transverse shifting of one kind, its effects to be similar to adding for TGXG for earthwork water drain net
Gu effect, the tensile strength of drainage network and rigidity are better than many TGXG for being used for foundation stabilization, Ke Yiti under normal circumstances
The enabling capabilities of high ground.Third, after road aging, cracking initiation, most of rainwater will enter in section, in this feelings
Under condition, drainage network is laid immediately under road surface, drainage network can receive it before moisture enters ground/underlayment in advance
Collection, prevents moisture from entering ground, is able to extend the service life of road.
However, in the prior art, three-dimensional composite drainage network needs respectively to spread out antiseepage film and drainage network in the construction process
Paving, complex procedures spend the time long, therefore still need to develop a kind of new drainage network.
Summary of the invention
To solve in the prior art, three-dimensional composite drainage network needs respectively to spread out antiseepage film and drainage network in the construction process
Paving, complex procedures spend the problem that the time is long, and an object of the present invention is to provide a kind of anti-filter antiseepage overlay film drainage network.
The second object of the present invention is to provide the preparation method of above-mentioned anti-filter antiseepage overlay film drainage network.
To achieve the above object, the invention adopts the following technical scheme:
Anti-filter antiseepage overlay film drainage network, including geotextile layer, three dimensional network sandwich layer and the impervious barrier successively arranged from top to bottom,
The thickness ratio of the geotextile layer, three dimensional network sandwich layer and impervious barrier is 1:(3~6): (2~3).
Preferably, the thickness of the geotextile layer, three dimensional network sandwich layer and impervious barrier is respectively 1.5mm, 5mm and 3mm.
Preferably, the geotextile layer is polyester filament geotextile layer.
Preferably, the three dimensional network sandwich layer includes the first rib, the second rib and third rib, first rib and the
Three ribs are arranged with cross modal, and the second rib vertical array is between first rib and third rib.
It is further preferred that the rigidity of second rib is greater than first rib and third rib.
Preferably, the impervious barrier is polyethylene film for earthwork.
The preparation method of above-mentioned anti-filter antiseepage overlay film drainage network, step include:
(1) film extrusion after dissolving polyethylene raw material rolls compound impervious barrier through hot-rolling with geotextiles；
(2) geotextile layer and the heating of three dimensional network sandwich layer is compound rear compound with the impervious barrier of step (1).
Step (1) specifically: after the dissolution of polyethylene raw material set temperature, by Screw Extrusion, die orifice is cast slabbing,
Then sheet membrane material and geotextiles by hot-rolling roll it is compound after, it is cooling and after drawing trimming it is coiled.
Step (2) specifically: carbon black anti-aging materials are added in high density polyethylene (HDPE), are then gone out from Screw Extrusion through die orifice
The steel wire rack with 3 D stereo is formed, it is then compound by first heater plate with geotextiles after traction, after
It is compound that impervious barrier after upper traction is cooling by lower traction and step (1) crosses second heating plate, finally obtains anti-filter antiseepage and covers
Epiphragma drainage network.
Preferably, the temperature that step (1) described hot-rolling rolls is 240 DEG C.
Preferably, the temperature of step (2) described heating is 260 DEG C.
Three dimensional network sandwich layer of the invention forms drainage network by three layers of rib, and the second big rib of rigidity is arranged in a manner of vertical
Column, the first rib and third rib are arranged with cross modal, and three layers of rib form three-dimensional steel wire rack, and the draining for forming longitudinal arrangement is logical
Road, three dimensional network sandwich layer two sides are bonding with geotextile layer and bottom cloth layer respectively.
The rib of three dimensional network sandwich layer of the invention is arranged in a staggered fashion, and is not only made the tensile strength of drainage network and is resisted
Compression performance is very high, and soil body insertion drainage channel can also be avoided to cause to block, reduce drainability, three dimensional network sandwich layer is combined with
The characteristic of the draining protective effect of the reverse filter effect of geotextile layer and bottom cloth layer, provide be added in original anti-filter performance it is anti-
Function is seeped, complete draining-big function of antiseepage-anti-filter-protection four is provided.
The drainability of anti-filter antiseepage overlay film drainage network is equivalent to open gradation gravel drainage blanket, is distributed in three-dimensional steel wire rack two sides
Geotextile will not contact with each other, so that anti-filter antiseepage overlay film drainage network is able to maintain that unobstructed drainage condition, three-dimensional steel wire rack is special
Different three-dimensional structure makes it have very high resistance to compression and drainability.The draining that three ribs of three-dimensional steel wire rack are formed is logical
Road is able to maintain very high drainage performance under long-term high pressure loading condition, and geotextile will not be embedded in steel wire rack, in this way
Hole needed for providing for partition capillarity.
Since three-dimensional steel wire rack has three-dimensional three-dimensional construction, also there is very high pressure while playing quick water-discharging function
Contracting modulus will not be compressed under heavy load action, and still have high drainage performance.In the prior art, three-dimensional multiple
Close drainage network drainage path be " S " type, as shown in Figure 1, and the drainage path of drainage network of the present invention be a straight channel,
As shown in Fig. 2, not only reducing drainage path, moreover it is possible to reduce water discharge time, increase drainage efficiency.
Beneficial effects of the present invention
1, the present invention solves in the prior art, and three-dimensional composite drainage network is needed in the construction process by antiseepage film and draining
Net paves respectively, complex procedures, spends the problem that the time is long, it is only necessary to which once paving, it is anti-to provide for complete draining-antiseepage-
The big function of filter-protection four；
2, the rib of the three dimensional network sandwich layer of anti-filter antiseepage overlay film drainage network of the present invention is arranged in a staggered fashion, and not only makes to arrange
The tensile strength and anti-compression properties in the network of rivers are very high, and soil body insertion drainage channel can also be avoided to cause to block, reduce draining
Ability, three dimensional network sandwich layer are combined with the characteristic of the draining protective effect of the reverse filter effect and bottom cloth layer of geotextile layer；
3, the anti-filter antiseepage overlay film drainage network of the invention three-dimensional construction three-dimensional since three-dimensional steel wire rack has, is being played quickly
Also there is very high compression modulus while drain function, will not be compressed under heavy load action, and still have high
Drainage performance.
Detailed description of the invention
Fig. 1 is the drainage path schematic diagram of drainage network in the prior art.
Fig. 2 is the drainage path schematic diagram of drainage network of the present invention.
Specific embodiment
The following is specific embodiments of the present invention, and further retouches to technical solution of the present invention work in conjunction with the embodiments
It states, however, the present invention is not limited to these examples.
Embodiment 1
Anti-filter antiseepage overlay film drainage network, including geotextile layer, three dimensional network sandwich layer and the impervious barrier successively arranged from top to bottom,
The thickness ratio of the geotextile layer, three dimensional network sandwich layer and impervious barrier is 1:(3~6): (2~3).
Wherein, the thickness of geotextile layer, three dimensional network sandwich layer and impervious barrier is respectively 1.5mm, 5mm and 3mm.
Geotextile layer is polyester filament geotextile layer.
Three dimensional network sandwich layer includes the first rib, the second rib and third rib, and first rib and third rib are to hand over
The arrangement of fork-shaped formula, between first rib and third rib, the rigidity of the second rib is greater than the second rib vertical array
First rib and third rib.
Impervious barrier is polyethylene film for earthwork.
Embodiment 2
The preparation method of anti-filter antiseepage overlay film drainage network, step include:
(1) film extrusion after dissolving polyethylene raw material rolls compound impervious barrier through hot-rolling with geotextiles；
(2) geotextile layer and the heating of three dimensional network sandwich layer is compound rear compound with the impervious barrier of step (1).
The temperature that step (1) described hot-rolling rolls is 240 DEG C, and the temperature of step (2) described heating is 260 DEG C.
Detect example
According to the preparation method of the parameter of embodiment 1 and embodiment 2, it is prepared for anti-filter antiseepage overlay film drainage network.It has detected
Water permeable ability, compressive property and the tensile property of anti-filter antiseepage overlay film drainage network.With commercially available three kinds of composite drainage networks A, B and C
As a comparison.Wherein, " geotextile hydraulic conductivity is (along fabric under constant head according to ASTMD4716-87 for water permeable ability test method
Plane flowing) test " and the ISO/FDISI2958-98E " survey of geotextile and its Related product along textile plane conveyance power of water
It is fixed " it carries out.The results are shown in Table 1.
1 drainage network the performance test results of table
As known from Table 1, the water permeability of drainage network of the present invention, tensile strength and tensile strength are significantly greater than commercially available three kinds of rows
The network of rivers, drainage network of the invention can play the role of the soil for being equal to one layer of direction earthwork grille or bilayer to foundation stabilization
Work cloth.
The present invention solves in the prior art, and three-dimensional composite drainage network is needed in the construction process by antiseepage film and drainage network
It paves respectively, complex procedures spend the problem that the time is long, it is only necessary to once pave and provide for complete draining-antiseepage-anti-filter-
Protect four big functions.The rib of the three dimensional network sandwich layer of anti-filter antiseepage overlay film drainage network is arranged in a staggered fashion, and not only makes to drain
The tensile strength and anti-compression properties of net are very high, and soil body insertion drainage channel can also be avoided to cause to block, reduce draining energy
Power, three dimensional network sandwich layer is combined with the characteristic of the draining protective effect of the reverse filter effect and bottom cloth layer of geotextile layer, further, since three
Tieing up steel wire rack has three-dimensional three-dimensional construction, also has very high compression modulus while playing quick water-discharging function, in heavy type
It will not be compressed under load action, and still there is high drainage performance.
Claims (9)
1. anti-filter antiseepage overlay film drainage network, which is characterized in that including successively arrange from top to bottom geotextile layer, three dimensional network sandwich layer
And impervious barrier, the thickness ratio of the geotextile layer, three dimensional network sandwich layer and impervious barrier are 1:(3~6): (2~3).
2. anti-filter antiseepage overlay film drainage network according to claim 1, which is characterized in that the geotextile layer, three dimensional network sandwich layer
Thickness with impervious barrier is respectively 1.5mm, 5mm and 3mm.
3. anti-filter antiseepage overlay film drainage network according to claim 1 or claim 2, which is characterized in that the geotextile layer is that polyester is long
Silk geotextile layer.
4. anti-filter antiseepage overlay film drainage network according to claim 1, which is characterized in that the three dimensional network sandwich layer includes the first muscle
Item, the second rib and third rib, first rib and third rib are arranged with cross modal, and second rib is vertically arranged
It is listed between first rib and third rib.
5. anti-filter antiseepage overlay film drainage network according to claim 4, which is characterized in that the rigidity of second rib is greater than institute
State the first rib and third rib.
6. anti-filter antiseepage overlay film drainage network according to claim 1, which is characterized in that the impervious barrier is polyethylene geotechnique
Film.
7. the preparation method of any one anti-filter antiseepage overlay film drainage network according to claim 1~6, which is characterized in that step
Include:
(1) film extrusion after dissolving polyethylene raw material rolls compound impervious barrier through hot-rolling with geotextiles；
(2) geotextile layer and the heating of three dimensional network sandwich layer is compound rear compound with the impervious barrier of step (1).
8. the preparation method of anti-filter antiseepage overlay film drainage network according to claim 7, which is characterized in that step (1) described heat
The temperature that roller rolls is 240 DEG C.
9. the preparation method of anti-filter antiseepage overlay film drainage network according to claim 7, which is characterized in that step (2) is described to be added
The temperature of heat is 260 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811462906.XA CN109371773A (en) | 2018-12-03 | 2018-12-03 | Anti-filter antiseepage overlay film drainage network and preparation method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811462906.XA CN109371773A (en) | 2018-12-03 | 2018-12-03 | Anti-filter antiseepage overlay film drainage network and preparation method |
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| CN109371773A true CN109371773A (en) | 2019-02-22 |
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| CN201811462906.XA Pending CN109371773A (en) | 2018-12-03 | 2018-12-03 | Anti-filter antiseepage overlay film drainage network and preparation method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110965524A (en) * | 2019-11-14 | 2020-04-07 | 湖南省汇杰勘测设计股份有限公司 | Reservoir seepage-proofing material and construction method |
| CN110965527A (en) * | 2019-11-14 | 2020-04-07 | 湖南省汇杰勘测设计股份有限公司 | Construction method of waterproof layer of upstream panel of concrete panel rock-fill dam |
| CN112709214A (en) * | 2021-01-07 | 2021-04-27 | 湖南盛业土工材料制造有限公司 | Composite three-rib filtering reinforced drainage net and preparation method thereof |
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|---|---|---|---|---|
| JP2002004263A (en) * | 2000-06-16 | 2002-01-09 | Taiyo Kiso Kk | Ground improving method |
| CN200996148Y (en) * | 2006-11-15 | 2007-12-26 | 蒋才荣 | Three-dimensional composite geotechnical drainage net |
| CN108729437A (en) * | 2018-07-16 | 2018-11-02 | 中铁第四勘察设计院集团有限公司 | Composite, water-drain isolating pad, bedding waterproof/drainage structure and side slope are layered waterproof/drainage structure |
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2018
- 2018-12-03 CN CN201811462906.XA patent/CN109371773A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002004263A (en) * | 2000-06-16 | 2002-01-09 | Taiyo Kiso Kk | Ground improving method |
| CN200996148Y (en) * | 2006-11-15 | 2007-12-26 | 蒋才荣 | Three-dimensional composite geotechnical drainage net |
| CN108729437A (en) * | 2018-07-16 | 2018-11-02 | 中铁第四勘察设计院集团有限公司 | Composite, water-drain isolating pad, bedding waterproof/drainage structure and side slope are layered waterproof/drainage structure |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110965524A (en) * | 2019-11-14 | 2020-04-07 | 湖南省汇杰勘测设计股份有限公司 | Reservoir seepage-proofing material and construction method |
| CN110965527A (en) * | 2019-11-14 | 2020-04-07 | 湖南省汇杰勘测设计股份有限公司 | Construction method of waterproof layer of upstream panel of concrete panel rock-fill dam |
| CN112709214A (en) * | 2021-01-07 | 2021-04-27 | 湖南盛业土工材料制造有限公司 | Composite three-rib filtering reinforced drainage net and preparation method thereof |
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Application publication date: 20190222 |