土工基础

土工基础 ›› 2026, Vol. 40 ›› Issue (2): 262-265.

• 专题论述 • 上一篇    下一篇

珠海横琴深厚软土的固结系数计算方法研究

吴伟亮1，林宗涛2，邢益江1，李懿2，刘继凯1，罗武章2   

  1. （1.中国建筑工程（澳门）有限公司,广东珠海 519000;2.广州大学建筑设计研究院有限公司,广州 510440）
  • 收稿日期:2024-02-04 修回日期:2024-04-07 出版日期:2026-04-30 发布日期:2026-04-23
  • 通讯作者: 李懿（1987-），男，博士，高级工程师，研究方向为岩土工程。
  • 作者简介:吴伟亮（1989-），男，工程师，研究方向为岩土工程。

Analysis Methods for Consolidation Coefficients of Deep Soft Soils in Hengqin, Zhuhai

WU Weiliang1, LIN Zongtao2, XING Yijiang1, LI Yi2, LIU Jikai1,  LUO Wuzhang2   

  1. (1.China State Construction Engineering (Macau) Co. Ltd., Zhuhai 519000;
    2.Architectural Design and Research Institute of Guangzhou University, Guangzhou 510440)
  • Received:2024-02-04 Revised:2024-04-07 Online:2026-04-30 Published:2026-04-23

摘要： 高含水率、高压缩性和低强度的深厚软土常常给岩土工程的稳定性和安全性构成较大的威胁。以珠海横琴深厚软土为研究对象，在分析淤泥和淤泥质土的物理力学指标的基础上，将太沙基一维固结理论公式和室内固结试验得到的固结系数进行比较，评价理论公式的适用性，为类似地区工程建设提供理论依据。研究结果表明，太沙基一维固结理论公式计算得到的淤泥固结系数是固结试验竖向固结系数的4.3~6.8倍，是固结试验水平固结系数的0.8~1.4倍；对于淤泥质土，采用理论公式计算得到的固结系数与固结试验得到的固结系数相差1~3个数量级，偏差较大，因此不宜用太沙基一维固结理论公式计算淤泥质土的固结系数。

关键词: 深厚软土, 物理指标, 固结系数

Abstract: The high-water content, high compressibility, and low strength of deep soft soils often pose significant threats to the stability and safety of geotechnical engineering projects. Based on the analysis of physical properties of peaty and organic soils, a comparison was conducted between the coefficient of consolidation calculated by Terzaghi consolidation theory formula and the coefficient of consolidation obtained from laboratory tests to evaluate the applicability of theoretical formula to provide theoretical basis for similar engineering constructions. Results show that the consolidation coefficients of peat soil by Terzaghi formula are 4.3 to 6.8 times the vertical consolidation coefficients obtained from consolidation tests, and 0.8 to 1.4 times the horizontal consolidation coefficients. As for organic soils, the calculated consolidation coefficients using the theoretical formula differ from the consolidation coefficients obtained from consolidation tests by 1 to 3 orders of magnitude, indicating a large deviation. Therefore, it is not recommended to use Terzaghi consolidation theory to calculate the consolidation coefficients of organic soil.

Key words: Deep Soft Soils, Physical Indicators, Coefficient of Consolidation

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