Zhanjiang needle punched nonwoven geotextile

  Geotextile, also known as geotextile, is a permeable geosynthetic material made of synthetic fiber through weaving
Geotextile is one of the new materials geosynthetics
The finished product is cloth, with a general width of 4-6m and a length of 50-100m
Geotextiles are divided into woven geotextiles and non-woven filament geotextiles
1
Good elongation
Due to the use of plastic fiber, it can maintain sufficient elongation in dry and wet conditions

2
Corrosion resistance
It can resist corrosion for a long time in soil and water with different pH

3
Good water permeability, there is a gap between the fibers, so it has good water permeability

4
It has good anti microbial property and is not damaged by microorganisms and moths

5
The construction is convenient
Due to the light and flexible material, the transportation, laying and construction are convenient

6
Complete specifications: the width can reach 2-8m, and the mass per unit area: 100-1000g / m2
Inverted filtration and reinforcement
The filter layer of the upstream dam surface at the initial stage of the ash storage dam or tailings dam, and the filter layer of the drainage system in the backfill of the retaining wall
Filter layer around concealed drainage pipe or gravel drainage ditch
Filter layer of water well, relief well or inclined pressure pipe in hydraulic engineering
The isolation layer of geotextile between highway, airport, railway and artificial rockfill and the foundation
The interior of the earth dam is drained vertically or horizontally and buried in the soil to dissipate the pore water pressure
Drainage behind impervious geomembrane in earth dam or embankment or under concrete cover
Drain the water seepage around the tunnel and reduce the external water pressure borne by the lining and the water seepage around each building
Artificial fill foundation and drainage of playground foundation
Roads (including temporary roads), railways, embankments, earth rock dams, airports, sports grounds and other projects are used to strengthen weak foundations

In the process of flexible crown structure combination design, when paving the surface course on the semi-rigid base course, the surface course of the road with higher grade shall be appropriately thickened or geotextile shall be paved or Fuyang measures shall be taken to reduce the reflection cracks
Under the action of physical external force and natural environmental factors (rain, moisture, dust, etc
), the asphalt pavement is damaged

Difference between composite geomembrane and geomembrane

1) Lap width of weld bead: 80 ~ 100mm; The natural folds of plane and vertical planes are 5% ~ 8% respectively; Reserved expansion: 3% ~ 5%; Leftover material: 2% ~ 5%
2) The working temperature of hot melt welding is 280 ~ 300 ℃; Travel speed 2 ~ 3mmin; The welding form is welding
3) Repair the damaged parts, cut the materials with the same specifications, hot melt repair or seal with geomembrane glue

Method 2
Laying geomembrane to prevent leakage of pond ridge, in addition to using cement for hardening, some geomembrane can also be laid on it, so the cement hardening cost is lower