通过响应表面方法和可取性函数优化粘土土的参数
Ghania Boukhatem1, Messaouda Bencheikh2, Mohammed Benzerara1
1Materials Geomaterials and Environment Laboratory (LMGE), Faculty of Technology, Department of Civil Engineering, Badji-Mokhtar-Annaba University, P.O.Box 12, 23000, Annaba, Algeria.
添加路边的岩沙土, 显著改善其机械性能. 使用30%的沙子获得最佳效果,提高基础设施项目的土壤稳定性.
科学领域:
- 地质工程
- 土壤科学
- 材料科学
背景情况:
- 弱粘土土壤在地质工程方面存在挑战.
- 稳定对于改善土壤机械性能至关重要.
- 岩沙提供了潜在的增强材料.
研究的目的:
- 调查路边岩沙子对粘土性质的影响.
- 确定土壤增强的最佳混合物组成.
- 为地质技术参数开发预测模型.
主要方法:
- 使用甲蓝测试,阿特伯格极限测试,压缩测试,直接切割和度测试进行实验分析.
- 响应表面方法 (RSM) 与中央复合设计 (CCD) 进行优化.
- 使用ANOVA和回归分析进行统计验证.
主要成果:
- 在高达30%的岩砂下观察到土壤强度和压缩特性的显著改善.
- 甲蓝值,液体极限,塑料极限和塑性指数均下降.
- 最大干密度和内部摩擦角度增加,而凝聚力,可压缩性和膨胀系数下降.
- RSM模型的预测准确度很高 (R2 > 0.97).
结论:
- 加入30%的岩砂是一种有效和可持续的方法来增强粘土的稳定性.
- 开发的模型准确地预测了地质技术特性变化.
- 这些发现有助于在基础和道路建设中的实际应用,尤其是在干旱地区.
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