CN206591491U - A kind of multidirectional reinforcement composite geo-membrane - Google Patents

Abstract

The utility model discloses a kind of multidirectional reinforcement composite geo-membrane, including HDPE film, it is combined successively from inside to outside at least one side of the HDPE film and at least one layer of fine nonwoven layer of polyester length and at least one layer of tendon shape slice layer is set, muscle in tendon shape slice layer in longitudinally, laterally, diagonal cross arrangement, muscle footpath is 1-10mm, horizontal bar spacing is 10-150mm, longitudinal rib spacing is 10-150mm, oblique muscle spacing is 10-150mm, and described muscle is made up of polypropylene rib or is made up of specification for 20-200D silvalin.The utility model can not only antiseep, and can also greatly improve its tensile strength, improve the tear resistance of product, it is ensured that product will not cause tear failure when bearing heavy duty, cyclic reverse loading and being influenceed by weather of extremely trembling with fear.

Description

A kind of multidirectional reinforcement composite geo-membrane

Technical field

The utility model is related to a kind of multidirectional reinforcement composite geo-membrane, is mainly used in the antiseeps such as reservoir, water channel, highway, The processing of the Special Rock such as railway bed, the antileakaging engineering of dykes and dams and highway, railway bed salinized soil, swelled ground, loess.

Background technology

Geomembrane has played irreplaceable important work as the geosynthetics occurred earliest in engineering construction With, the water-proofing treatment in reservoir seepage-proofing, water channel, river course, cofferdam etc., highway, the roadbed waterproofing work of railway, and highway, iron In terms of the roadbed Special Rock processing of road, substantial amounts of application is obtained, huge success is achieved.

China is a country for famine fresh water, and rainfall distribution is very unbalanced, and especially in western wide geographic area, arid is The principal contradiction of our industrial and agricultural productions is restricted, the arid time is very long, once but rainy season arrives or the snow melting time arrives Come, water is concentrated very much, very harmful, the seasonality of seepage control project is just apparent.The hair energetically built with Chinese national economy Exhibition, many engineerings are required for considering seasonal leakage problems.Simple geomembrane has been difficult to adapt to more and more harsh antiseepage It is required that, non-woven fabric compounded geomembrane is occurred in that therewith, geomembrane is protected by, to prevent this thorn for being likely to occur of work progress Broken phenomenon, it is to avoid the danger of " a thousand li dyke is destroyed in ant cave ".Non-woven fabrics is as protective layer, with the spy such as puncture-resistant, pliability be good Point, also has the shortcomings that to have to take into account that, is exactly that tensile strength is not high, especially the tensile strength under low elongation state, this Sample is when reservoir storage full water, road and rail engineering bear heavy duty, and roadbed and dykes and dams can produce certain sedimentation and deformation, and non-woven fabrics is nothing Method meets tension requirement, and this deformation can cause geomembrane tension thinning, easily be torn, and cause antiseepage to fail, furthermore, When environment temperature drastically declines, roadbed dykes and dams also can by cold events, so as to cause geomembrane to bear larger pulling force, once beyond it Ultimate tension, will also result in rupture of membranes phenomenon, form seepage.

The content of the invention

The utility model provides a kind of multidirectional reinforcement composite geo-membrane, can not only antiseep, and can also carry significantly Its high tensile strength, improves the tear resistance of product, it is ensured that product is bearing heavy duty, cyclic reverse loading and by weather of extremely trembling with fear During influence, tear failure will not be caused.

The purpose of this utility model is achieved in that a kind of multidirectional reinforcement composite geo-membrane, including HDPE film, the HDPE It is combined successively from inside to outside at least one side of film and at least one layer of fine nonwoven layer of polyester length and at least one layer of muscle is set Muscle in shape slice layer, tendon shape slice layer in longitudinally, laterally, diagonal cross arrangement, muscle footpath is 1-10mm, and horizontal bar spacing is 10-150mm, longitudinal rib spacing is 10-150mm, and oblique muscle spacing is 10-150mm, and described muscle is by polypropylene rib structure Constituted for 20-200D silvalin into or by specification.

The utility model using longitudinally, laterally, oblique multidirectional laying rib band formation Netted valve blade material, heat is compound or passes through Compile compound nonwoven cloth and carry out multidirectional reinforcement protection, described multidirectional sinew adding strip band by longitudinally, laterally, the multi-direction row such as oblique Row, the structure that formation can be multidirectional stressed, the sinew adding strip band so laid passes through polymer plate integrally stretching, polymer fiber The formation Netted valve blade material such as yarn plain weave, warp knit；And by modes such as heat seal, hot pressing, warp knits by these multidirectional reinforcement strip-forms Into Web materials and non-woven fabrics be combined together into multidirectional reinforcement non-woven fabrics；Then, by techniques such as polymer blown, calenderings The geomembrane of manufacture, is bonded together the compound nonwoven cloth with multidirectional reinforcement by hot pressing mode, is formed multidirectional reinforcement and is answered Close geomembrane.The utility model can not only antiseep, and can also greatly improve its tensile strength, improve the tear-proof of product Performance, it is ensured that product will not cause tear failure when bearing heavy duty, cyclic reverse loading and being influenceed by weather of extremely trembling with fear.

Brief description of the drawings

The utility model is described in further detail below in conjunction with accompanying drawing.

Fig. 1 is main structure diagram of the present utility model；

Fig. 2 is overlooking the structure diagram of the present utility model.

Embodiment

A kind of multidirectional reinforcement composite geo-membrane, as shown in Figure 1 and Figure 2, including HDPE film 3, at least side of the HDPE film 3 It is combined successively from inside to outside on face and at least one layer of fine nonwoven layer 2 of polyester length and at least one layer of tendon shape slice layer 1, muscle is set Muscle in shape slice layer 1 in longitudinally, laterally, diagonal cross arrangement, muscle footpath is 1-10mm, and horizontal bar spacing is 10-150mm, Longitudinal rib spacing is 10-150mm, and oblique muscle spacing is 10-150mm, and described muscle is made up of polypropylene rib or by specification Constituted for 10-200D silvalin.

As a kind of preferred structure of the present utility model, the fine nonwoven layer 2 of described polyester length is two layers, tendon shape slice layer For two layers, polyester length fibre nonwoven layer and tendon shape slice layer are separately positioned on the both sides of HDPE film.

As a kind of preferred structure of the present utility model, described muscle footpath is 2mm, and horizontal bar spacing is 40mm, longitudinal rib Spacing is 40mm, and oblique muscle spacing is 40mm.

High molecular polymer such as high density polyethylene (HDPE)（HDPE）Obtained using blow molding process, the general 0.2-2mm of thickness, breadth Generally 1-10 meters, polyester（Terylene）Non-woven fabrics or nonwoven polypropylene fabric are produced by spinneret needling process, the general 0.2- of thickness 5mm, grammes per square metre is controlled in 50-500g/m², multidirectional sinew adding strip band pass through polymer for example polypropylene extrusion board, punching, stretching obtain Multidirectional Netted valve blade material, muscle footpath is general in 1-10mm, the general 10-150mm of horizontal bar spacing, the general 10- of longitudinal rib spacing 150mm, the oblique general 10-150mm of muscle spacing；Or, polymer fiber yarn such as polyester（Terylene）Yarn, polypropylene staple fibre spun yarn etc. pass through flat Knit, the mode such as warp knit, bonding obtains multidirectional Netted valve blade material, silvalin typically selects 20-200D, described polyester（Terylene） Non-woven fabrics or nonwoven polypropylene fabric are combined together with multidirectional Netted valve blade material by heat seal or weaving manner first, further The composite and geomembrane are carried out into heat to be combined, multidirectional reinforcement composite geo-membrane is formed.The compound number of plies of specific reinforcement can root Adjusted according to actual requirement of engineering.

Claims (3)

1. a kind of multidirectional reinforcement composite geo-membrane, including HDPE film, it is characterized in that：On at least one side of the HDPE film by interior and It is combined and sets at least one layer of fine nonwoven layer of polyester length and at least one layer of tendon shape slice layer, tendon shape slice layer successively outside Muscle in longitudinally, laterally, diagonal cross arrangement, muscle footpath is 1-10mm, and horizontal bar spacing is 10-150mm, and longitudinal rib spacing is 10-150mm, oblique muscle spacing is 10-150mm, and described muscle is made up of polypropylene rib or is 20-200D's by specification Silvalin is constituted.

2. composite geo-membrane according to claim 1, it is characterized in that：The fine nonwoven layer of described polyester length is two layers, muscle Shape slice layer is two layers, and polyester length fibre nonwoven layer and tendon shape slice layer are separately positioned on the both sides of HDPE film, HDPE film Thickness is 0.3mm.

3. composite geo-membrane according to claim 1, it is characterized in that：Described muscle footpath is 2mm, and horizontal bar spacing is 40mm, longitudinal rib spacing is 40mm, and oblique muscle spacing is 40mm.