BRIEF RESEARCH REPORT article
Front. Built Environ.
Sec. Geotechnical Engineering
Volume 11 - 2025 | doi: 10.3389/fbuil.2025.1628946
This article is part of the Research TopicRising Stars in Geotechnical Engineering: Volume 2View all articles
Optimized T-shaped soil-cement deep mixed column for Sustainable Ground Improvement
Provisionally accepted
- Shandong University, Jinan, China
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Since the introduction of Deep Cement Mixing (DCM) technology, it has been widely applied to enhance the strength and stability of problematic soil. Among its advancements, the T-shaped DCM column has emerged as an innovative solution in large-scale infrastructure and urban projects. It offers several benefits, including enhanced bearing capacity while significantly reducing settlement in soft ground. This study focuses on optimizing the T-shaped DCM column while ensuring its mechanical strength remains intact through a comprehensive numerical analysis. This study considers three different column types: the conventional DCM, the T-shaped DCM, and the T-shaped column with varied strength. The analysis reveals that the lower portion of the column plays a less significant role in the overall bearing capacity, indicating potential for optimization that could effectively reduce construction costs for the T-shaped DCM column. It is essential to observe that failures in both the T-shaped and varied-strength columns primarily occur at the head and the uppermost section of the body. Notably, the varied-strength T-shaped DCM exhibits a bearing capacity that is two to three times greater than that of the conventional DCM column. Furthermore, the varied-strength column is distinguished by its notably lower construction costs compared to its counterparts. This design alternative is promising, as it maintains a higher bearing capacity and exhibits reduced settlement compared to the conventional DCM, making it a feasible choice for practical field applications.
Keywords: Deep cement mixing, T-shaped DCM, Numerical Simulations, Bearing capacity, varied-strength column
Received: 15 May 2025; Accepted: 17 Jun 2025.
Copyright: © 2025 YAO, Singh, Rong and Yao. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
* Correspondence: Moirangthem Johnson Singh, Shandong University, Jinan, China
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