Métodos Gerais De Instalação De Geomembrana Composta Geotêxtil
As the key medium of the anti-seepage structure, the geomembrane layer should meet the stress requirements during installation, because the leak control effect of geomembrane is related to its strength and thickness. Therefore, choose the appropriate thickness according to the design stress.
The geomembrana de compósitos geotêxteis heated with geotextile on one side or two sides has the features of high overall strength, tear resistance, anti-breaking and anti-piercing ability. The geotextile compounded on the membrane surface has supported and protected abilities.
For the leak control structure utilized with composite geomembrane, in general, the support layer and the protection layer can be simplified. For example, this geotextile composite geomembrane can be directly laid before the placement of concrete facing surface or the protective surface composed of the gravel cushion and the concrete slab. After laying this composite geomembrane, the medium coarse sand cushion can be directly laid.
The phenomenon that geotextile composite geomembrane is punctured is caused by the unenven subgrade, so it is important to prepare and maintain the civil works of subgrade.
General geotextile composite geomembrana installation method:
Primeiro, o tratamento de sub-grau
Subgrade should be prepared according to the design requirements, which is the key to ensuring the leak control performance. The substances including sharp stones, roots and other foreign subjects should be thoroughly removed, and subgrade is not allowed to be uneven. The prepared and maitained subgrade should be compacted by a tamper or a seesaw.
Segundo, a colocação
Ao assentar a geomembrana composta geotêxtil, ela deve ser colocada de cima para baixo. A sobreposição entre os geocompósitos, e entre a geomembrana e o subleito deve ser plana e apertada, mas não deve ser puxada com muita força, geralmente deve ser ligeiramente solta. As bolhas devem ser evitadas na parte inferior. Como a geomembrana composta geotêxtil é relativamente fina e leve, é fácil ser soprada pelo vento antes que a camada protetora seja colocada. Portanto, a geomembrana composta geotêxtil não deve ser implantada com uma grande área ao mesmo tempo. Coloque a camada protetora do solo assim que o geocompósito for bem colocado.
Terceiro, conjunto
The joint has three methods of hot-melt welding, gluing and compacting, wherein the hot-melt welding has the best waterproof effect.
Xangai Yingfan Engenharia Ambiental Co., Ltd.