摘 要
软土地基因其低承载力和高沉降特性，对工程建设构成重大挑战，尤其是在基础设施快速发展的背景下，研究高效、经济的软土地基处理技术具有重要意义。本研究旨在探讨多种软土地基处理技术的应用效果及其适应性，以解决实际工程中的地基稳定性问题。通过理论分析、数值模拟及现场试验相结合的方法，系统评估了强夯法、CFG桩复合地基法以及真空预压法等技术在不同地质条件下的适用性和优化策略。研究表明，强夯法在浅层软土加固中表现出显著优势，而CFG桩复合地基法则更适合深层软土处理；真空预压法在大面积软土地基处理中展现出良好的经济性和环保性能。本研究创新性地提出了基于地质特性的多技术协同优化方案，并通过案例验证了其可行性与有效性，为类似工程提供了重要的参考依据，同时推动了软土地基处理技术的进一步发展。关键词：软土地基处理; 强夯法; CFG桩复合地基法; 真空预压法; 多技术协同优化
Abstract
Soft soil foundations, characterized by low bearing capacity and high settlement properties, pose significant challenges to construction projects, particularly in the context of rapid infrastructure development. It is therefore crucial to investigate efficient and economical techniques for soft soil foundation treatment. This study aims to evaluate the application effects and adaptability of various soft soil foundation treatment technologies to address geotechnical stability issues in practical engineering scenarios. By integrating theoretical analysis, numerical simulation, and field experiments, a systematic assessment was conducted on the applicability and optimization strategies of dynamic compaction, CFG pile composite foundation, and vacuum preloading methods under different geological conditions. The findings indicate that dynamic compaction demonstrates significant advantages in shallow soft soil reinforcement, while the CFG pile composite foundation method is more suitable for deep soft soil treatment. Vacuum preloading shows favorable economic and environmental performance in large-scale soft soil foundation treatment. Innovatively, this study proposes a multi-technology collaborative optimization scheme based on geological characteristics, which has been validated through case studies to demonstrate its feasibility and effectiveness. This research provides critical references for similar projects and promotes further advancements in soft soil foundation treatment technology.Key words:Soft Soil Foundation Treatment; Dynamic Compaction Method; CFG Pile Composite Foundation Method; Vacuum Preloading Method; Multi-Technology Synergistic Optimization
目 录
中文摘要 I
英文摘要 II
引 言 1
第1章、软土地基特性分析 2
1.1、软土的物理性质研究 2
1.2、软土的力学行为特征 2
1.3、软土地基问题概述 3
第2章、软土地基处理技术分类 4
2.1、常见处理技术概述 4
2.2、物理加固方法探讨 4
2.3、化学改良技术分析 4
第3章、软土地基处理技术应用案例 6
3.1、公路工程中的应用研究 6
3.2、桥梁基础处理实践 6
3.3、房屋建筑地基处理实例 6
第4章、软土地基处理技术优化与创新 8
4.1、新型材料的应用探索 8
4.2、技术经济性评价方法 8
4.3、未来发展方向展望 9
结 论 10
参考文献 11
