半球形复合立体加筋砂土强度特性研究
本研究致力于深入探究半球形复合立体加筋砂土的强度特性。我们采用橡胶作为加筋材料，并结合三轴剪切试验，系统地分析了不同半球数量、围压条件下加筋砂土的强度表现、应力-应变关系和破坏形态。实验结果显示，半球形复合立体加筋砂土在低围压环境下展现出显著增强的抗剪强度。这一增强效果随着加筋层数的增加而愈发明显，表明半球形加筋体能够有效地限制砂土颗粒的运动，提高整体稳定性。与传统的水平加筋方式相比，半球形复合体加筋对土体的约束力更大，能够在受到外力作用时有效分散应力，从而显著提高加筋土的抗剪强度。我们还观察到，随着半球数量的增加，加筋砂土的黏聚力和内摩擦角均得到显著提升。这表明半球形加筋体不仅增强了砂土的抗剪能力，还改善了其内部结构的稳定性。本研究不仅揭示了半球形复合立体加筋砂土的强度特性及其作用机理，还为实际工程中加筋技术的优化和应用提供了有力的理论支撑和实验依据。通过深入分析加筋材料性质、半球形加筋体设计、砂土性质以及外部加载条件和围压等因素对加筋砂土强度的影响，我们期望为土木工程领域的发展贡献新的见解和思路，推动加筋技术的进一步创新与应用。
关键词：半球形复合立体；加筋砂土；强度特性
Abstract
This study aims to explore the strength characteristics of hemispherical composite stereo reinforced sand. By using rubber as reinforced material, we systematically analyzed the strength performance, stress-strain relationship and damage pattern of reinforced sand in different hemisphere quantity and under ambient pressure conditions. The experimental results showed that the hemispherical composite solid reinforced sand showed significantly enhanced shear strength in the low ambient pressure environment. This enhancement effect becomes more obvious with the number of reinforcement layers, indicating that the hemispherical reinforcement can effectively limit the movement of sand particles and improve the overall stability. Compared with the traditional horizontal reinforcement method, the hemispherical complex reinforcement has a greater binding force on the soil, and can effectively disperse the stress under the action of external force, thus significantly improving the shear strength of the reinforced soil. We also observed that both the cohesion and internal friction angle of the reinforced sand were significantly increased with the number of hemisphere. This indicates that the hemispherical reinforcement not only enhances the shear resistance of the sand, but also improves the stability of its internal structure. This study not only reveals the strength characteristics and action mechanism of hemispherical composite stereo reinforced sand, but also provides strong theoretical support and experimental basis for the optimization and application of reinforcement technology in practical engineering. Through in-depth analysis of the influence of reinforced material properties, hemispherical reinforcement design, sand properties, external loading conditions and surrounding pressure on the strength of reinforced sand, we expect to contribute new insights and ideas to the development of civil engineering field, and promote the further innovation and application of reinforcement technology.
Keywords: Hemispherical composite stereo; reinforced sand; strength characteristics
目录
摘 要 I
Abstract II
第1章 绪论 1
1.1 研究背景及意义 1
1.2 研究目的和内容 1
1.3 国内外研究现状 2
第2章 半球形复合立体加筋砂土概述 3
2.1 半球形复合立体加筋砂土的定义及分类 3
2.1.1 半球形复合立体加筋砂土的定义 3
2.1.2 半球形复合立体加筋砂土的分类 3
2.2 半球形复合立体加筋结构的构造特点 4
2.2.1 几何形状 4
2.2.2 加筋材料 4
2.3 砂土的基本性质与工程特性 5
2.3.1 砂土的基本性质 5
2.3.2 砂土的工程特性 5
第3章 半球形复合立体加筋砂土的应用领域 6
3.1 交通工程中的路基与边坡 6
3.2 水利工程中的堤防与坝体 6
3.3 环境保护工程中的土壤加固与修复 7
第4章 半球形复合立体加筋砂土强度特性的影响因素 8
4.1 砂土性质对强度的影响 8
4.2 加筋材料对强度的影响 8
4.3 半球形结构对强度的影响 8
4.4 外部加载条件对强度的影响 9
第5章 半球形复合立体加筋砂土实验研究 10
5.1 实验材料与设备 10
5.2 实验设计与方法 10
5.3 实验结果与分析 10
5.4 实验结论与讨论 11
结 论 12
参考文献 13
致 谢 14
