原位固化技术在超深淤泥浅层处理中的应用

Application of In-situ Solidification Technology in Shallow Treatment of Ultra-deep Silty Mud

超深淤泥地基因其流塑性强、承载力低的特点,对其进行处理往往存在工期长、造价高、易失稳的问题。为完善现有超深淤泥地基处理方法,特别是相关理论计算存在的不足,该文以第十一届江苏园博园城市展园泥潭绿色改造为工程背景,针对性提出超深淤泥地基浅层原位固化处理方案。对原位固化桩复合地基的承载力和沉降计算进行了详细分析,梳理了完整的计算流程,并通过现场载荷试验,进一步验证了该方案实施的可行性,可为同类工程提供技术参考。

Due to the characteristics of high fluidity and low bearing capacity,the treatment of ultra-deep muddy soil foundations often faces issues such as long construction periods,high costs,and susceptibility to instability.To improve the existing treatment methods for ultra-deep muddy soil foundations,particularly addressing the deficiencies in relevant theoretical calculations,this paper proposes a shallow in-situ solidification treatment scheme for such foundations,based on the case study of the green renovation of the muddy area in the City Exhibition Garden of the 11th Jiangsu International Horticultural Exposition.A detailed analysis of the bearing capacity and settlement calculation of the composite foundation with in-situ solidified piles is conducted,outlining a complete calculation process.Furthermore,on-site loading tests are performed to further verify the feasibility of the proposed scheme,providing technical references for similar engineering projects.