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复合土工膜-应用PVC复合土工膜的优点在堤坝工程建设中

复合土工膜-应用PVC复合土工膜的优点在堤坝工程建设中

复合土工膜-应用PVC复合土工膜的优点在堤坝工程建设中

复合土工布涉及的是一种应用于土木建筑、水利、铁路、港口、市政等建设工程中的新型土工复合材料,主要作用为公路软基处理、边坡防护,屋顶防漏、增强,水利工程反滤、护坡、防渗、管涌等。结构包括机织土工布层、无纺土工布层,机织土工布层与无纺土工布层由针刺复合成整体。土工布层可采用长丝机织土工布层或裂膜丝机织土工布层。

公开了一种土石坝PVC复合土工膜防渗心墙施工方法,应用PVC复合土工膜的优点在堤坝工程建设中获得更好的效果。在堤坝防渗工程中,利用PVC复合土工膜的防渗优势(渗透系数≤10-12cm/s,远小于也用于防渗心墙的粘土、砾石土、沥青砼混凝土等材料),将其铺设在防渗心墙部位。

复合土工膜作为一种新型防渗材料已在水利水电工程中得到了广泛应用,在坝工建设领域,复合土工膜作为防渗体大有取代传统的粘土心墙及粘土斜墙等土石堤、坝防渗体的趋势。然而,由于对复合土工膜的理论研究和应用研究目前还处于初级阶段,因此使得其应用一般还仅限于中低土石坝,在高土石坝中的应用还较少。

Composite geotextiles involved in a used in civil construction, water conservancy, railways, ports, municipal construction projects in the new geocomposite, the main role for Soft Foundation Treatment, slope protection, roof leakages, enhance, water conservancyfiltration, slope, seepage,piping. The structure includes woven geotextile layer, non-woven geotextile layer, the layer of woven geotextilenon-woven geotextile layer by acupuncture combined into a whole. Geotextile layer can be filament woven geotextile layersplit film silk woven geotextile layer.

Public of an earth dam PVC composite geomembrane core wall construction methods, the advantages of the application of PVC composite geomembrane to get better results in the construction of the dam project. Dam seepage control project, the advantage of the use of PVC composite geomembrane impermeable (permeability coefficient ≤ 10-12cm / s is much smaller than for the impervious core of clay, gravel, soil, asphalt concreteconcrete materials) will its laying in the impervious core of the site.

Composite geomembrane as a new type of impermeable material in water projects in a wide range of applications in the field of dam construction, composite geomembrane as the impervious much to replace the traditional clay coreclay sloping wall of earthrock embankment, dam impervious trend. However, due to theoreticalapplied research of composite geomembrane is still in its infancy, which makes its application is generally limited to low earth dam, also small in high earth dam.