摘 要
随着城市化进程的加快，基坑工程在复杂环境下的设计与施工面临诸多挑战，尤其是在高密度建筑区域、地质条件多变及周边环境敏感的情况下。本研究旨在探讨复杂环境下基坑支护结构的设计与施工关键技术，并提出针对性解决方案以提升工程安全性与经济性。研究结合理论分析、数值模拟和工程实践，系统评估了不同支护形式在复杂地质条件和外部荷载作用下的适应性与稳定性。通过引入先进的监测技术与优化设计方法，研究开发了一种基于动态反馈的支护结构设计流程，能够有效应对施工过程中不确定因素的影响。结果表明，该方法显著提高了基坑工程的安全性和施工效率，同时降低了对周边环境的潜在影响。此外，研究还提出了适用于复杂环境的施工风险评估体系，为类似工程提供了科学依据和技术支持。本研究的主要创新点在于将动态反馈机制融入基坑支护设计，并首次系统性地整合了地质条件、施工工艺与环境影响的多维度分析框架，为复杂环境下基坑工程的设计与施工提供了新的思路和方法论支持，具有重要的理论价值和实际应用意义。
关键词：基坑支护设计；复杂环境；动态反馈机制
ABSTRACT
With the acceleration of urbanization, the design and construction of foundation pit projects in complex environments face numerous challenges, particularly in high-density building areas, variable geological conditions, and sensitive surrounding environments. This study aims to investigate the key technologies for the design and construction of foundation pit support structures in complex environments and proposes targeted solutions to enhance both engineering safety and economic efficiency. By integrating theoretical analysis, numerical simulation, and practical engineering experience, the study systematically evaluates the adaptability and stability of various support forms under complex geological conditions and external loads. Advanced monitoring techniques and optimized design methods are introduced, leading to the development of a dynamic feedback-based design process for support structures, which effectively addresses uncertainties during construction. The results indicate that this approach significantly improves the safety and construction efficiency of foundation pit projects while reducing potential impacts on the surrounding environment. Additionally, the study establishes a construction risk assessment system tailored for complex environments, providing scientific evidence and technical support for similar projects. A major innovation of this research lies in incorporating a dynamic feedback mechanism into the design of foundation pit supports and systematically integrating a multidimensional analytical fr amework that considers geological conditions, construction techniques, and environmental impacts. This provides new insights and methodological support for the design and construction of foundation pit projects in complex environments, offering significant theoretical value and practical implications.
Keywords: Pit Support Design; Complex Environment; Dynamic Feedback Mechanism
目 录
摘 要 I
ABSTRACT II
第1章 绪论 1
1.1 复杂环境下基坑支护研究背景 1
1.2 基坑支护结构设计与施工的意义 1
1.3 国内外研究现状分析 1
1.4 本文研究方法与技术路线 2
第2章 复杂环境对基坑支护的影响分析 3
2.1 地质条件的复杂性评估 3
2.2 水文环境对支护结构的影响 3
2.3 周边建筑与地下设施干扰分析 4
2.4 施工过程中动态环境变化研究 4
2.5 环境因素综合影响评价 5
第3章 基坑支护结构的设计挑战与优化策略 6
3.1 支护结构选型的关键因素分析 6
3.2 复杂条件下支护结构稳定性设计 6
3.3 数值模拟在设计中的应用研究 7
3.4 新材料与新技术在设计中的应用 7
3.5 设计优化案例分析 8
第4章 基坑支护施工过程中的技术难点与对策 9
4.1 施工工艺选择与适应性分析 9
4.2 施工过程中的监测与控制技术 9
4.3 风险管理与应急预案制定 10
4.4 施工质量控制与验收标准 10
4.5 典型工程实践总结 11
结论 12
参考文献 13
致 谢 14
