徐亮,唐彤芝,白兰兰,等. 就地固化技术处理浅层软土的应用及机理研究[J]. 水利水运工程学报,2021(2):109-116. doi: 10.12170/20200618003
引用本文: 徐亮,唐彤芝,白兰兰,等. 就地固化技术处理浅层软土的应用及机理研究[J]. 水利水运工程学报,2021(2):109-116. doi: 10.12170/20200618003
(XU Liang, TANG Tongzhi, BAI Lanlan, et al. Application and mechanism of in-situ solidification technology to treat shallow soft soil[J]. Hydro-Science and Engineering, 2021(2): 109-116. (in Chinese)). doi: 10.12170/20200618003
Citation: (XU Liang, TANG Tongzhi, BAI Lanlan, et al. Application and mechanism of in-situ solidification technology to treat shallow soft soil[J]. Hydro-Science and Engineering, 2021(2): 109-116. (in Chinese)). doi: 10.12170/20200618003

就地固化技术处理浅层软土的应用及机理研究

Application and mechanism of in-situ solidification technology to treat shallow soft soil

  • 摘要: 就地固化是近年来逐渐得到应用的浅层软土处理技术。通过室内及现场试验,对就地固化技术在河塘淤泥处理中的应用及加固机理进行了研究。结果表明,结合强力搅拌头对河塘淤泥进行的就地改良固化,可在改良后的淤泥顶部直接进行路基填筑等进一步工艺,实现了淤泥的就地资源化利用,同时减少了外弃土方和外借土方,有利于保护环境和节约造价。加固机理表明,强力搅拌头处理后的固化土中水泥分布相较于常规方法更加均匀,因此在相同的水泥掺量情况下,能得到更高的强度。

     

    Abstract: In-situ curing is a shallow soft soil treatment technology that has been gradually applied in recent years. In this research, through indoor and field experiments, the application of in-situ solidification in the treatment of river pond sludge and the strengthening mechanism were studied. The research shows that the combination of strong stirring heads for the in-situ improvement and solidification of river pond sludge can improve the improved sludge. Further processes such as roadbed filling are carried out directly on the roof to realize the on-site resource utilization of the sludge, and at the same time reduce the amount of external spoil and borrow the earth, which is conducive to environmental protection and cost saving. The strengthening mechanism shows that the cement distribution in the solidified soil treated by the powerful mixing head is more uniform than that of the conventional method, so that with the same cement content, higher strength can be obtained.

     

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