摘 要
深基坑工程作为现代城市建设中的重要组成部分，其支护结构的设计与施工直接影响到工程的安全性、经济性和环境影响。针对当前深基坑支护技术面临的复杂地质条件和高精度控制需求，本文系统研究了深基坑支护结构的设计与施工关键技术。研究基于国内外相关理论与实践经验，结合数值模拟分析与现场监测数据，提出了一种综合考虑地质特性、荷载分布及施工工况的优化设计方法，并开发了适用于复杂工况的新型支护结构形式。通过引入先进的BIM技术和智能监测手段，实现了对深基坑施工过程的动态管理和风险预警，显著提高了施工效率与安全性。研究成果表明，所提出的优化设计方法能够有效降低支护结构的变形量和内力峰值，同时减少材料用量，实现经济效益与环境效益的双重提升。此外，本文提出的智能化施工管理方案在多个实际工程中得到了成功应用，验证了其可行性和可靠性。本研究的创新点在于将多学科交叉技术融入深基坑支护领域，为复杂条件下深基坑工程的设计与施工提供了新思路和技术支撑，对推动行业技术进步具有重要意义。
关键词：深基坑支护；优化设计方法；新型支护结构
ABSTRACT
Deep excavation projects, as a critical component of modern urban construction, directly influence the safety, economy, and environmental impact of engineering through the design and construction of their supporting structures. In response to the complex geological conditions and high-precision control requirements faced by current deep excavation support technologies, this study systematically investigates the key technologies in the design and construction of deep excavation support structures. Based on relevant theories and practical experiences from both domestic and international sources, combined with numerical simulation analysis and field monitoring data, an optimized design method is proposed that comprehensively considers geological characteristics, load distribution, and construction conditions. A new type of support structure suitable for complex conditions has also been developed. By integrating advanced BIM technology and intelligent monitoring methods, dynamic management and risk warnings during the construction process of deep excavations are achieved, significantly enhancing construction efficiency and safety. The research findings indicate that the proposed optimization design method effectively reduces deformation and peak internal forces in the support structure while minimizing material usage, thereby achieving dual improvements in economic and environmental benefits. Furthermore, the intelligent construction management solution proposed in this study has been successfully applied in multiple real-world projects, verifying its feasibility and reliability. The innovation of this research lies in incorporating interdisciplinary technologies into the field of deep excavation support, providing new ideas and technical support for the design and construction of deep excavation projects under complex conditions, and playing a significant role in promoting technological advancements in the industry.
Keywords: Deep Excavation Support; Optimization Design Method; New Type Support Structure
目 录
摘 要 I
ABSTRACT II
第1章 绪论 1
1.1 深基坑支护结构研究背景与意义 1
1.2 国内外深基坑支护技术研究现状 1
1.3 本文研究方法与技术路线 2
第2章 深基坑支护结构设计关键技术 3
2.1 支护结构选型与适用性分析 3
2.2 地质条件对设计的影响研究 3
2.3 结构稳定性计算与优化方法 4
2.4 设计中荷载取值与组合原则 4
2.5 数值模拟在设计中的应用 5
第3章 深基坑施工工艺与控制技术 6
3.1 施工方案制定与优化策略 6
3.2 支护结构施工质量控制要点 6
3.3 土方开挖对支护结构的影响分析 7
3.4 监测技术在施工过程中的应用 7
3.5 特殊地质条件下施工难点探讨 8
第4章 深基坑工程风险管理与案例分析 9
4.1 深基坑工程风险识别与评估方法 9
4.2 支护结构失效模式及预防措施 9
4.3 环境影响与周边建筑保护技术 10
4.4 典型深基坑工程案例分析与总结 10
4.5 风险管理在实际工程中的应用 11
结论 12
参考文献 13
致 谢 14
