Construction Processes and Technologies for Subgrade Reinforcement in Highway Engineering
公路工程施工中路基加固处理的工艺与技术探究

摘要

路基作为公路工程核心承重结构，其质量问题直接影响工程整体效益。为解决路基沉降、开裂等常见病害，本文从地质、施工、自然环境三方面剖析病害成因，系统研究物理压实、土体置换等六大类路基加固技术的适用场景与施工工艺要点，并构建施工前勘察设计、施工中工艺把控、施工后检测验收的全流程质量管控体系。研究明确了不同加固技术的应用规范与管控重点，其研究成果可为公路工程路基加固的实际施工提供科学的技术参考。

Abstract

 As the core load-bearing structure in highway engineering, the quality of the subgrade directly affects the overall engineering performance of a project. To address common defects such as subgrade settlement and cracking, this paper analyzes the causes of these defects from three aspects: geological conditions, construction factors, and the natural environment. It systematically examines the applicable scenarios and key construction process requirements of six major categories of subgrade reinforcement technologies, including physical compaction and soil replacement, and establishes a whole-process quality control system covering pre-construction investigation and design, in-construction process control, and post-construction inspection and acceptance. The study clarifies the application specifications and control priorities of different reinforcement technologies, and its findings provide a scientific basis and technical reference for the practical implementation of subgrade reinforcement in highway engineering.