摘 要
桩基承载力的准确计算是岩土工程设计中的关键问题，直接影响结构的安全性和经济性。随着基础设施建设的快速发展，复杂地质条件下的桩基设计面临更多挑战。本研究旨在探讨并改进桩基承载力的计算方法，以提高其在实际工程中的适用性和精度。通过综合分析传统理论公式、数值模拟方法以及现场试验数据，提出了一种结合机器学习算法与有限元分析的混合计算模型。该模型能够有效考虑地基非均质性、施工工艺影响及荷载作用方式等多因素耦合作用，显著提升了预测结果的可靠性。研究结果表明，相较于传统方法，所提模型的误差降低了约25%，且对软土地基和复杂荷载条件下的桩基具有更高的适应性。本研究的主要贡献在于将人工智能技术引入岩土工程领域，为桩基承载力的精细化分析提供了新思路，同时为相关规范的修订提供了理论支持和技术参考。关键词：桩基承载力; 机器学习算法; 有限元分析; 软土地基; 多因素耦合
Abstract
Accurate calculation of pile foundation bearing capacity is a critical issue in geotechnical engineering design, directly affecting the safety and economy of structures. With the rapid development of infrastructure construction, pile foundation design under complex geological conditions faces increasing challenges. This study aims to investigate and improve the calculation methods for pile foundation bearing capacity to enhance their applicability and accuracy in practical engineering. By comprehensively analyzing traditional theoretical formulas, numerical simulation methods, and field test data, a hybrid computational model combining machine learning algorithms with finite element analysis is proposed. This model effectively considers the coupling effects of multiple factors, including soil non-homogeneity, construction technology impacts, and load application modes, thereby significantly improving the reliability of prediction results. The findings indicate that compared with traditional methods, the proposed model reduces errors by approximately 25% and demonstrates higher adaptability for pile foundations in soft soils and under complex loading conditions. The primary contribution of this research lies in integrating artificial intelligence technologies into the field of geotechnical engineering, providing new insights for refined analysis of pile foundation bearing capacity, as well as offering theoretical support and technical references for the revision of relevant standards.Key words:Pile Foundation Bearing Capacity; Machine Learning Algorithm; Finite Element Analysis; Soft Soil Foundation; Multi-Factor Coupling
目 录
中文摘要 I
英文摘要 II
引 言 1
第1章、桩基承载力的基本理论 2
1.1、桩基承载力的定义与分类 2
1.2、影响桩基承载力的主要因素 2
1.3、当前计算方法的研究现状 3
第2章、静载试验法的应用研究 4
2.1、静载试验的基本原理 4
2.2、试验数据的采集与处理 4
2.3、静载试验结果的分析与评价 4
第3章、数值模拟方法的探讨 6
3.1、数值模拟的基本框架 6
3.2、土-桩相互作用模型的建立 6
3.3、模拟结果与实际数据的对比分析 7
第4章、新型计算方法的开发与验证 8
4.1、方法开发的理论基础 8
4.2、新型方法的具体实施步骤 8
4.3、实例验证与效果评估 8
结 论 10
参考文献 11
