工业副产品木质素的岩土工程应用与发展

生物能源副产品木质素是一种不污染环境,且成本低廉的新型高效土体固化剂,适用于地基土加固和增强土体抗侵蚀性,目前已在欧美发达国家广泛开展研究并得到实际应用,且有很多成功的工程实例。通过文献回顾,总结了国内外对木质素加固土体性能的评价方法和典型室内试验结果。同时论述了木质素加固土体的抗侵蚀特性,归纳了相关木质素加固土体抗侵蚀特性的室内试验方法。针对目前国内已有研究现状,探讨了生物能源副产品木质素在加固路基土中存在的问题,展望了其在岩土工程中的应用前景。

Application and Development of Lignin of Industrial By-product in Geotechnical Engineering

Lignin, a by-product of biological energy source, is a new soil stabilizer without environment pollution, low cost and high efficiency, and applicable to reinforcement of subgrade soil and enhancement of soil erosion resistance.Now it has been extensively studied and put into practice in the developed countries in Europe and America, and have many successful project cases.With the literature review, the methods evaluating stabilization of soil property by lignin at home and abroad, and the typical indoor test results, were summarized.In addition, this paper also analyzed the erosion resistance of lignin-stabilized soil, and generalized the related indoor test methods for this performance.In connection with the status quo of such study in the country at present, the paper discussed the issues which exist in the field of subgrade soil stabilized by lignin of biofuel by-product, and then looked to the bright future of its application in geotechnical engineering.