Deformation monitoring and stability analysis of soil nailing wall support structure in deep foundation pit
深基坑土钉墙支护结构的变形监测与稳定性分析

摘要

深基坑土钉墙支护结构在现代建筑工程中应用广泛，其变形监测与稳定性分析对保障施工安全和工程质量具有重要意义。本文围绕深基坑土钉墙的变形特性展开研究，结合工程实例，系统探讨了土钉墙在不同施工阶段的受力机制与变形规律。通过现场监测数据的采集与分析，评估了支护结构在开挖过程中的位移变化趋势，并采用数值模拟方法对土钉墙整体稳定性进行预测与验证。科学合理的变形监测方案能够有效掌握支护结构的动态响应，为及时调整施工参数提供依据，从而提升支护系统的安全性与可靠性。

Abstract

The soil nailing wall support structure for deep foundation pits is widely used in modern construction engineering. Its deformation monitoring and stability analysis are of great significance for ensuring construction safety and project quality. This paper focuses on the deformation characteristics of the soil nailing wall in deep foundation pits. Combined with engineering cases, it systematically discusses the stress mechanism and deformation laws of the soil nailing wall at different construction stages. Through the collection and analysis of on-site monitoring data, the displacement change trend of the support structure during the excavation process is evaluated, and numerical simulation methods are used to predict and verify the overall stability of the soil nailing wall. A scientific and reasonable deformation monitoring scheme can effectively grasp the dynamic response of the support structure, provide a basis for timely adjustment of construction parameters, and thus improve the safety and reliability of the support system.