How to connect the seams of composite geotextile

Release Time:

2024-01-05

How to connect the seams of composite geotextile

Composite geotextile in the construction of welding seams is very important welding seam connection will affect the quality of the entire project seepage control.

1> composite geotextile seams processing is the key construction procedures, directly affecting the operation of the project life, according to quality testing shows that the use of hot welding method is more ideal. < also available special adhesive bonding> heat welding method is PE geomembrane connected surface heating process, so that the surface melting, and then through the pressure to make the fusion into a body, <2> geomembrane is good along the surface of the geomembrane, the surface of the geomembrane, the surface of the geomembrane, the surface of the geomembrane is melted.

<2> Geomembrane is good to lay along a certain direction, geomembrane on both sides of the reserved 1 PE film and PET non-adhesive layer, laying to adjust the direction of each unit of geomembrane, in order to facilitate the welding of the two units of geomembrane. The geomembrane should be adjusted to the direction of each unit when laying so as to facilitate the welding of two units,

<3> After the geomembrane is laid, it should be pressed with sand bag to prevent wind movement, and there should be no dirt, moisture, dust, etc. at the edge joints.

<4>Welding should be adjusted before the joints of the two sides of the PE monofilm, so that the lap of a certain broadband, and flat, no wrinkles.

<5>Welding, it is good to have a certain amount of experience in the welding of technicians, welding using a special welding machine for welding. To adjust the temperature and speed, < can also be glued>.

According to years of practice, the geomembrane thickness of not less than 0.25mm, too thin may appear pores, and easy to be damaged in the construction and reduce the effect of seepage control. Geomembrane construction, special attention should be paid to the laying should not be too tight, shall not wrinkle, splicing to be firm. To be strictly in accordance with technical specifications for construction, good preparation, laying, splicing, inspection and backfill and other 5 quality control. As a result of composite geomembrane good seepage control effect, Baoji Xia irrigation district water-saving renovation and the continuation of matching project construction, a large number of the use of the material, by the design, construction units widely praised!

Construction precautions.

<1>The use of buried type should be used: the thickness of the cover should not be less than 30cm.

<2>The refurbishment of the seepage control system should be: bedding layer, seepage control layer, transition layer, protective layer.

<3>The soil should be solid, to avoid disproportionate subsidence, cracks, impermeable range of turf, tree roots should be removed. The contact surface with the membrane is paved with sand or clay of small particle size for the protective layer.

<4>Paving geomembrane do not pull too tight, both ends buried in the soil part of the corrugated better, especially when anchored with rigid materials, there should be a certain amount of expansion and contraction.

<5>Construction, should avoid stones, heavy objects straight pressure.

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