土工织物防护工程反滤准则试验研究

EXPERIMENTAL STUDY ON SOIL RETENTION CRITERION IN BANK PROTECTION ENGINEERING BY USING GEOTEXTILE

土工合成材料的出现，为岩土工程施工技术带来了重要的影响。但将土工合成材料应用在堤岸防护工程中所出现的一些问题还有进行深入科学研究的必要。尤其是保土性准则一直是研究的热点问题。本文结合较大孔径织造布在堤岸防护工程中多年应用实践，通过室内反滤试验，野外淘刷试验及工程应用实例分析研究，提出了O90≤（2～10）d90防护工程中织造布保土性设计新准则，突破了目前普遍采用的O90≤（1～2）d90设计指标。

Geo -synthetics is one kind of important material in geotechnical construction. To use it in the bank protection engineering by using geo - synthetics, soil retention criterion of geo - textile should be assessed. Based on case studies of bank protection projects, lab tests, in - situ tests, locale antitypes tests and observations, and theoretical analysis the authors recommend a new soil retention criterion of textile, O90≤（2～10）d90 , which challenges the existing criterion of O90≤（1～2）d90 that adopted by all the world will be challenged.