The composite geomembrane is flexible and plays its role in the support of the lower cushion soil in the seepage of artificial lake and reservoir.
The effect of the lower cushion soil is to ensure that the composite geomembrane is not damaged by the stress of partial assembly.
Therefore, the properties of the bedding soil will greatly affect the anti-seepage of the composite geotechnical film.
If wet soil cushion layer under the attack, will make part of the uneven settlement, the subsidence area will stress have gathered around the composite geomembrane, composite geomembrane might be cracking at the moment, disable composite geomembrane anti-seepage structure parts, increase the reservoir leakage.
A large number of measured experimental materials are analyzed, and the influence of settlement depth on the tensile strength of composite geomembrane is obvious.
As shown in fig.5-3, the larger the settlement depth, the greater the tensile strength of the composite geomembrane, the greater the tensile strain, and the greater the possibility that the composite geomembrane could be pulled apart.
When the depth of the settlement was greater than 0.5 m, the tensile strength of the composite soil membrane was obviously added.
The size of partial settlement area of the reservoir has a great influence on the tensile force of the composite geomembrane.
As can be seen from fig.5-4, the larger the settlement area of the settlement area under different settlement depth, the larger the tensile strength of the composite geomembrane.
When the depth of the settlement is greater than 0.5 m, the tensile force of the composite geotechnical film increases with the increase of area
Shandong jinxiang new material co., LTD
Post time: Jan-04-2018