纤维加筋土技术研究进展

Research Progress of Fiber Reinforced Soil Technology

加筋土技术进展历史悠久,加筋材料作为加筋土的核心内容,成为道路、地质和岩土工程领域的研究热点。区别于传统的加筋材料,纤维材料具有分散性好、易于拌和、无污染、改良后土体各向同性和强度较高等优势。纤维种类是影响纤维加筋土性质的一个关键因素,主要分为天然纤维和人工合成纤维2大类。目前对于纤维加筋土的工程性质研究主要以室内试验为主,主要包括抗压强度(无侧限抗压强度试验)、抗剪强度(直剪试验、三轴剪切试验)和抗拉强度。文章主要归纳了国内外诸多学者关于纤维加筋土的相关研究成果并介绍了纤维加筋技术在实际工程中的应用案例。

Reinforced material, as the core content of reinforced soil, has become a research hotspot in the field of road, geology and geotechnical engineering. Different from traditional reinforcement materials, fiber materials have the advantages of good dispersion, easy mixing, no pollution, improved isotropy and high strength. Fiber material is a key factor affecting the properties of fiber reinforced soil, which mainly divided into two categories： natural fibers and synthetic fibers. At present, the main researches on the engineering properties of reinforced soil are mainly indoor test, including compressive strength（unconfined compression strength test）,shear strength（straight shear test, three axis shear test） and tensile strength. This paper mainly summarizes the related research results of fiber reinforced soil, the application case of which in practical engineering is also introduced.