加筋生态护坡技术的应用与发展

Application and development of TRM technology in revetment works

  • 摘要: 在越来越注重工程生态性的今天,生态护坡在道路、堤防、城市水利等方面得到了广泛应用。然而很多情况下,生态护坡在强度上无法满足工程设计的要求。加筋生态护坡是土工织物与植草相结合形成的一种护坡形式,在保证工程生态性的同时大大提高了生态护坡的强度,近年来逐渐得到重视与应用。综合介绍了加筋生态护坡的发展历程,将其概括为传统生态护坡、普通加筋生态护坡和高性能加筋生态护坡3个阶段,在此基础上对加筋生态护坡使用的不同结构型式和材质的土工合成材料进行了分类总结,针对国内外加筋生态护坡技术的研究现状和主要结论,结合实例分析了加筋生态护坡的工程应用,指出在保护边坡、减少水土流失及改善生态环境方面的作用。最后,展望了未来需要研究的方向。

     

    Abstract: Nowadays, more and more attentions have been focused on the eco-environmental protection of the civil works, and the ecological engineering techniques for the side-slope protection works have been widely applied to the roads, embankments, urban hydraulic projects and so on. However, in many cases, the ecological slope protection technology can not meet the requirements of the engineering design. The turf reinforcement mat (TRM) is one of the side-slope protection forms combining the geotechnical fabric and reinforced turf with the slope or river banks, which protects the ecological works and significantly improves the strength of the ecological revetment works, and the TRM technology has been gradually paid attention to and has a wide range of application in recent years. By analyzing the development course and research status of the TRM technology, its development course has been divided into three stages: the traditional ecological slope protection, common reinforced ecological slope protection and high performance turf reinforcement mat slope protection. On the basis of this classification, the different structure types and geosynthetic materials of the TRM revetment works are summarized. And the related researches and main conclusions made by scholars at home and abroad on the development course of the TRM revetment are introduced in detail in this paper. Based on the case histories, the engineering application of the TRM technology including its effects in protecting slopes, reducing soil and water losses and improving ecological environment is analyzed. Finally, the authors point out the problems that need to be paid more attention to in the future researches.

     

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