Anti-leakage earth work film reinforced with fiber knitting layer and its preparing process

Abstract

The anti-leakage earth work film reinforced with fiber knitting layer includes an upper film layer, a lower film layer and a core layer in between, with the three layers being of the same or different material. The present invention features that the core layer includes at least one fiber knitting layer with cross knitted fiber material and the fiber knitting layer has its two sides adhered to other core layers or the upper film layer and the lower film layer. The fiber knitting layer reinforced anti-leakage earth work film has high mechanical strength, reliable anti-leakage characteristic and high durability.

Description

【Technical field】 [0001] The invention relates to a plastic anti-seepage membrane product for geotechnical foundation and its production process, more specifically, the invention relates to a fiber braided reinforced anti-seepage geomembrane and its preparation process. 【Background technique】 [0002] Although there have been precedents of using plastic membranes for foundation anti-seepage in civil waterproofing projects and many outdoor water conservancy and water storage projects, but so far, in key parts of these large-scale engineering and construction facilities, foundation anti-seepage Plastic films are still rarely used; related reports are rarely seen in patent or non-patent literature. Theoretically, the basic anti-seepage plastic film with reliable mechanical strength is a very convenient anti-seepage facility. Plastic film has very attractive technical and economic advantages, but even if the existing basic anti-seepage plastic film is a finished product after m...

AI Technical Summary

Problems solved by technology

Theoretically, the basic anti-seepage plastic film with reliable mechanical strength is a very convenient anti-seepage facility. Plastic film has very attractive technical and economic advantages, but even if the existing basic anti-seepage plastic film is a finished product after multi-layer compounding, the reliability of mechanical strength is still not satisfactory and unreliable. The resulting impact may be as large as endangering the safety of people's lives and property within a certain range, or as small as making people unable to live normally and worrying. In short, its application prospects are greatly restricted.

Especially in industries involving sensitive economic returns, such as aquaculture and related farming, few people use impervious plastic films to solve the problem of leakage of engineering structure foundations, because once the mechanical strength of the basic impermeable plastic films Foundation leakage or even leakage may occur due to the inability to withstand the strong water pressure, which may cause the loss of aquatic products of the whole pond, the whole pond and the whole reservoir

[0003] In the prior art, Chinese patent 02133504.4 discloses a method for anti-seepage of plastic film in houses, which does not improve the structure of the anti-seepage plastic film itself, but only improves the relationship between the anti-seepage plastic film and the building. Some efforts have been made on the bonding method of the wall foundation, etc., and obviously, in the case of this invention, the anti-seepage performance requirements for the basic anti-seepage plastic film are not high

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