摘 要
地表沉降是城市化进程中的常见地质问题，对市政管道设施的正常运行和使用寿命造成显著影响。本研究以地表沉降对市政管道设施的影响为核心，旨在分析其作用机制并提出有效的防护措施。通过结合现场监测数据与数值模拟方法，系统评估了不同类型地表沉降对管道应力分布、变形特征及破坏模式的影响，并引入基于风险评估的防护策略框架。研究发现，地表不均匀沉降是导致管道结构损伤的主要因素，尤其在软土地区或地下工程施工区域表现更为突出。通过对典型案例的深入分析，提出了包括管道柔性接头优化设计、地基加固技术改进以及实时监测预警系统的构建等创新性解决方案。这些措施能够有效降低地表沉降对管道设施的损害风险，延长其服役周期。本研究的主要贡献在于建立了地表沉降与管道响应之间的量化关系模型，并首次将多尺度分析方法应用于实际工程场景中，为相关领域的理论发展和实践应用提供了重要参考。研究成果可为城市基础设施规划、建设和维护提供科学依据，具有重要的学术价值和工程意义。
关键词：地表沉降；市政管道；不均匀沉降
ABSTRACT
Surface subsidence is a common geological issue in the process of urbanization, significantly affecting the normal operation and service life of municipal pipeline facilities. This study focuses on the impact of surface subsidence on municipal pipelines, aiming to analyze its mechanism of action and propose effective protective measures. By integrating field monitoring data with numerical simulation methods, a systematic evaluation was conducted on the influence of different types of surface subsidence on stress distribution, deformation characteristics, and failure modes of pipelines, while a risk-assessment-based protection strategy fr amework was introduced. The findings indicate that non-uniform surface subsidence is the primary factor causing structural damage to pipelines, particularly prominent in soft soil areas or regions with underground engineering activities. Through an in-depth analysis of case studies, innovative solutions were proposed, including the optimized design of flexible joints for pipelines, improvements in foundation reinforcement techniques, and the establishment of real-time monitoring and early warning systems. These measures effectively reduce the risk of damage to pipeline facilities caused by surface subsidence and extend their service cycles. A key contribution of this study lies in the establishment of a quantitative relationship model between surface subsidence and pipeline response, as well as the first application of multi-scale analysis methods to practical engineering scenarios, providing significant references for theoretical development and practical applications in related fields. The research outcomes offer scientific evidence for urban infrastructure planning, construction, and maintenance, demonstrating important academic value and engineering significance.
Keywords: Ground Subsidence; Municipal Pipelines; Uneven Settlement
目 录
摘 要 I
ABSTRACT II
第1章 绪论 1
1.1 地表沉降与市政管道设施的关联性分析 1
1.2 研究背景及意义探讨 1
1.3 国内外研究现状综述 2
1.4 本文研究方法与技术路线 2
第2章 地表沉降对市政管道的影响机制 3
2.1 地表沉降的基本特征与类型 3
2.2 市政管道设施的主要受力特性 3
2.3 沉降作用下管道变形的机理分析 4
2.4 不同地质条件下沉降影响的差异性 4
2.5 沉降对管道功能的影响评估 5
第3章 地表沉降对市政管道设施的具体影响分析 6
3.1 沉降导致的管道位移与断裂风险 6
3.2 沉降对管道水力性能的影响研究 6
3.3 沉降引发的渗漏问题及其后果分析 7
3.4 不同类型管道的沉降敏感性比较 7
3.5 沉降影响下的经济与社会成本评估 8
第4章 市政管道设施的地表沉降防护措施研究 9
4.1 防护措施的设计原则与目标 9
4.2 地基加固技术在管道防护中的应用 9
4.3 智能监测系统在沉降防控中的作用 10
4.4 新型材料在提高管道抗沉降能力中的应用 10
4.5 综合防护策略的制定与实施 11
结论 12
参考文献 13
致 谢 14
