标准编号：ISO/TR 20432:2007
中文名称：土壤加固用土工合成材料的长期强度测定指南
英文名称：Guidelines for the determination of the long-term strength of geosynthetics for soil reinforcement
发布日期：2007-12
标准范围
This Technical Report provides guidelines for the determination of the long-term strength of geosynthetics forsoil reinforcement.This Technical Report describes a method of deriving reduction factors for geosynthetic soil-reinforcementmaterials to account for creep and creep rupture, installation damage and weathering, and chemical andbiological degradation. It is intended to provide a link between the test data and the codes for constructionwith reinforced soil.The geosynthetics covered in this Technical Report include those whose primary purpose is reinforcement,such as geogrids, woven geotextiles and strips, where the reinforcing component is made from polyester(polyethylene terephthalate), polypropylene, high density polyethylene, polyvinyl alcohol, aramids andpolyamides 6 and 6,6. This Technical Report does not cover the strength of joints or welds betweengeosynthetics, nor whether these might be more or less durable than the basic material. Nor does it apply togeomembranes, for example, in landfills. It does not cover the effects of dynamic loading. It does not considerany change in mechanical properties due to soil temperatures below 0 °C, nor the effect of frozen soil. TheTechnical Report does not cover uncertainty in the design of the reinforced soil structure, nor the human oreconomic consequences of failure.Any prediction is not a complete assurance of durability.
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