市政道路全工序协同施工管控机理及关键技术研究

Research on Construction Control Mechanisms and Key Technologies for Full-Process Collaborative Management of Municipal Roads

摘要

市政道路传统分区独立管控模式易造成多层结构力学变形不协调，施工缺陷沿结构层逐级累积传导，诱发路面各类早期病 害。针对复杂地基变形控制难度大、层间结构性能匹配性差、全过程管理粗放等问题，依托层状复合结构变形耦合理论， 分析地基 — 路基 — 基层 — 面层体系施工缺陷的传导演变规律，构建集分区地基加固、结构层稳态调控、抗裂协同施工、 数字化闭环监管于一体的全工序精细化施工管控体系，提出多层结构变形协调与施工参数匹配的量化控制指标。选取滨海 软土新建道路、城区杂填土改扩建道路两项典型工程开展现场对比试验。结果表明：该协同管控体系可有效抑制内部隐蔽 缺陷向上传导，道路长期残余沉降降幅达 71.5%，路面综合病害发生率下降 80% 以上。研究成果可为复杂城市工况下市政 道路高标准建设与长寿命运维提供理论依据与技术支撑。

Abstract

The traditional zoned independent management approach for municipal roads often leads to uncoordinated mechanical deformation across multiple structural layers, with construction defects progressively accumulating and propagating through structural layers, ultimately causing various early-stage pavement defects. Addressing challenges such as complex foundation deformation control, poor interlayer structural compatibility, and inadequate whole-process management, this study employs layered composite deformation coupling theory to analyze the propagation patterns of construction defects across the foundation-subgrade-base course-pavement system. A comprehensive precision construction control framework is developed, integrating zoned foundation reinforcement, dynamic structural layer stabilization, crack-resistant collaborative construction, and digital closed-loop monitoring, along with quantified control indicators for coordinated multi-layer deformation and parameter alignment. Field comparative experiments were conducted on two representative projects—a new coastal road in soft soil and an urban road expansion using mixed fill materials. Results demonstrate that this collaborative control system effectively suppresses upward propagation of internal concealed defects, achieving a 71.5% reduction in long-term residual settlement and over 80% decrease in pavement defect incidence. These findings provide theoretical foundations and technical support for high-standard construction and durability enhancement of municipal roads under complex urban conditions.

关键词

市政道路 / 全工序协同施工 / 变形耦合机理 / 地基沉降控制 / 精细化施工 / 病害防控

Key words

municipal roads / full-process coordinated construction / deformation coupling mechanism / foundation settlement control / precision construction / defect prevention and control

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