湿陷性黄土地基冲击压实加固处理分析

Analysis on Impact Compaction Reinforcement for Collapsible Loess Foundation

结合高速公路湿陷性黄土地基冲击压实加固处理实践,阐述冲击压实机理和施工工艺,并开展试验检测分析加固效果。结合工程实例制定施工方案,并对施工技术要点进行总结。对冲击压实后的地基土物理力学性质变化情况、压实度、压实形变情况进行检测分析,得出地基土各物理力学指标变化较大,压实度提高显著,压实形变明显,地基土加固后强度和稳定性得到了明显提高。

Focusing on the practice of the impact compaction reinforcement for expressway collapsible loess foundation, the mechanism and construction process of the impact compaction was expounded, and tests and detection were carried out to analyze the reinforcement effect. The construction scheme was formulated, and technical points of the construction were summarized. The detection results of the foundation soil showed that, its physical and mechanical indexes changed greatly, the compactness increased significantly, and the compaction deformation was obvious. It is concluded that the strength and stability of the foundation soil are improved effectively after the reinforcement.