深基坑混凝土支撑伺服系统全过程监理管控研究——以杭州某基坑工程为例

Research on Whole-Process Supervision and Control of Servo Systems for Concrete Supports in Deep Excavations: A Case Study of a Hangzhou Excavation Project

摘要:

随着城市核心区地下空间开发的集约化发展,深基坑工程面临着日益严峻的周边环境变形控制要求。混凝土支撑伺服系统作为一种能够主动调控围护结构变形、抵消混凝土收缩徐变等影响的新型技术,在软土地区深基坑工程中展现出巨大的应用潜力。然而,该系统涉及液压、机械、结构多专业交叉,且需在基坑开挖全周期内维持动态响应,其施工复杂性和运行风险给工程监理工作带来了全新的挑战。本文以杭州某基坑工程为背景,基于监理方视角,深入探讨了该系统从方案审核、资源配置、隐蔽工程验收、加载控制到运行期动态调整的全过程精细化管控模式。

Abstract:

With the intensive development of underground space in urban core areas, deep foundation pit projects face increasingly stringent requirements for controlling surrounding ground deformation. As a novel technology capable of actively regulating retaining structure deformation and counteracting effects such as concrete shrinkage and creep, the concrete support servo system demonstrates significant application potential in deep foundation pit projects within soft soil regions. However, this system involves multidisciplinary integration of hydraulics, mechanics, and structural engineering, and requires maintaining dynamic responsiveness throughout the entire excavation cycle. Its construction complexity and operational risks present novel challenges for engineering supervision. Taking a Hangzhou excavation project as a case study, this paper explores, from the supervisor"s perspective, a comprehensive precision management model for the system. This model covers the entire process from scheme review, resource allocation, concealed work acceptance, loading control, to dynamic adjustments during the operational phase.