摘 要
地下连续墙作为一种深基础施工技术，在现代建筑工程中具有重要作用，而泥浆性能对墙体质量的影响尤为关键。本研究以泥浆比重为核心变量，分析其在地下连续墙施工中的作用机制及其对墙体质量的影响规律。研究通过实验室模拟试验与现场监测数据相结合的方法，系统探讨了不同泥浆比重条件下墙体成槽稳定性、混凝土浇筑效果及最终墙体质量的变化特征。结果表明，泥浆比重的合理控制能够显著提升墙体的垂直度和密实性，同时有效减少施工过程中的塌孔风险。研究表明，当泥浆比重维持在1.20至1.30 g/cm³范围内时，墙体质量最优且经济性较高。此外，本研究首次提出了基于泥浆比重优化的墙体质量预测模型，为实际工程提供了科学依据和技术支持。该研究成果不仅深化了对泥浆比重影响机制的理解，还为提高地下连续墙施工效率和质量提供了新的思路，具有重要的理论价值和实践意义。
关键词：泥浆比重；地下连续墙；墙体质量；成槽稳定性；经济性优化
ABSTRACT
The diaphragm wall, as a deep foundation construction technology, plays a significant role in modern architectural engineering, with the properties of slurry being particularly critical to wall quality. This study focuses on slurry specific gravity as the core variable, analyzing its mechanism of action during diaphragm wall construction and its influence on wall quality. By integrating laboratory simulation experiments with field monitoring data, the study systematically investigates the variation characteristics of trench stability, concrete pouring effectiveness, and final wall quality under different slurry specific gravities. The results indicate that appropriate control of slurry specific gravity can significantly enhance the verticality and compactness of the wall while effectively reducing the risk of hole collapse during construction. The research demonstrates that when the slurry specific gravity is maintained within the range of 1.20 to 1.30 g/cm³, the wall quality is optimal and economically efficient. Furthermore, this study proposes for the first time a wall quality prediction model based on slurry specific gravity optimization, providing scientific evidence and technical support for practical engineering applications. These findings not only deepen the understanding of the influence mechanism of slurry specific gravity but also offer new insights into improving the efficiency and quality of diaphragm wall construction, thereby possessing important theoretical value and practical significance.
Keywords: Mud Specific Gravity; Underground Continuous Wall; Wall Quality; Slot Stability; Economic Optimization
目 录
第1章 绪论 1
1.1 地下连续墙施工背景与意义 1
1.2 泥浆比重研究现状综述 1
1.3 本文研究方法与技术路线 2
第2章 泥浆比重对墙体稳定性的影响分析 3
2.1 泥浆比重的基本概念与作用机制 3
2.2 不同比重泥浆对墙体稳定性的实验研究 3
2.3 泥浆比重与地层条件的匹配性分析 4
2.4 提高墙体稳定性的优化措施探讨 4
第3章 泥浆比重对墙体成槽质量的影响研究 6
3.1 成槽过程中泥浆比重的作用机理 6
3.2 泥浆比重对槽壁垂直度的影响分析 6
3.3 泥浆比重对沉渣厚度的控制效果评估 7
3.4 优化泥浆比重以提升成槽质量的策略 7
第4章 泥浆比重对墙体接头质量的影响探讨 9
4.1 接头部位的质量问题及成因分析 9
4.2 泥浆比重对接头密封性的影响研究 9
4.3 泥浆比重对接头抗渗性能的作用分析 10
4.4 改善接头质量的泥浆比重调控方法 10
结论 12
参考文献 13
致 谢 14
