在高速公路堤上的软土壤上的T形和传统深层水泥混合柱的比较地震分析
Rafik Boufarh1, Amira Aissaoui2, Adel Djellali3
1Laboratory of Applied Civil Engineering (LGCA), Department of Civil Engineering, Echahid Cheikh Larbi Tebessi University, Tebessa, Algeria.
Scientific reports
|November 26, 2025
概括
在地震事件期间,T型深度混合 (TDM) 柱在增强高速公路堤在软土壤上的稳定性方面明显优于传统深度混凝土混合 (DCM) 柱. TDM柱提供优越的沉积减少和改善的地震性能,使它们成为地震活跃地区的理想选择.
科学领域:
- 地质技术工程 地质技术工程
- 地震学 地震学
- 土木工程 土木工程是指土木工程.
背景情况:
- 薄弱的土壤对地震区的高速公路建设构成重大挑战,有可能造成定居点和斜坡故障等不稳定的风险.
- 在动态地震负荷下确保堤防的稳定性至关重要,但对土壤增强技术的研究是有限的.
研究的目的:
- 评估和比较T型深层混合 (TDM) 柱与用于软土壤高速公路堤防的传统深层水泥混合 (DCM) 柱的地震性能.
- 调查柱间距和地震负荷对堤防响应参数的影响.
主要方法:
- 使用PLAXIS 3D的三维有限元素分析被用来建模和分析堤防的行为.
- 一个经过验证的模型经过了全面的参数研究,不同类型的柱子,间距 (1.67m, 2.14m, 3.0m) 和地震负载条件.
主要成果:
- 与未加强条件相比,DCM和TDM柱显著提高了地震稳定性.
- 与DCM柱相比,TDM柱实现了较高的结算减少 (89.95%) 和DCM柱 (36.11%),在地震负荷下,结算减少了88.31%.
- 较窄的TDM柱间距 (1.67m) 与较宽的间距 (3.0m) 相比,大大减少了沉积 (0.0032m),TDM显示了受控的巩固和降低了孔水压.
结论:
- 与传统的深层混凝土 (DCM) 柱相比,T形深层混凝土 (TDM) 柱在软土壤上的高速公路堤防中提供更好的抗震性能.
- 增强的负载转移和土壤结构相互作用有助于TDM柱的有效性.
- 推使用TDM柱作为在地震活跃地区建造高速公路堤的首选解决方案.
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