Analysis of Construction Technology and Quality Control Measures for Anchor-Rod Frame Beam Protection of Highway Slopes
公路边坡锚杆框架梁防护施工技术及质量管控措施分析

摘要

山区公路边坡开挖易破坏原有岩土应力平衡，诱发滑移、坍塌、风化剥落等病害，严重威胁道路施工 及运营安全。锚杆框架梁防护兼具锚固加固与坡面防护双重优势，是公路高边坡综合治理的核心工艺。本文 依托山区公路边坡实体工程，系统阐述锚杆框架梁防护结构原理与技术特点，梳理坡面修整、钻孔施工、锚 杆安装、压力注浆、框架梁钢筋模板、混凝土浇筑、养护成型全流程标准化施工工艺，分析钻孔偏位、注浆 不密实、梁体开裂、锚固力不足等常见质量缺陷成因，构建全工序精细化质量管控体系。工程实践表明，规 范施工与精准质控可显著提升边坡整体稳定性与耐久性，病害发生率大幅降低，可为同类公路边坡防护工程 提供技术借鉴。

Abstract

Slope excavation in mountainous highway projects can easily disturb the original stress balance of rock and soil masses, inducing defects such as sliding, collapse, weathering, and spalling, which seriously threaten road construction and operation safety. Anchor-rod frame beam protection has the dual advantages of anchoring reinforcement and slope surface protection, and is a core technology for the comprehensive treatment of highway high slopes. Based on a practical mountainous highway slope project, this paper systematically expounds the structural principles and technical characteristics of anchor-rod frame beam protection, and reviews the standardized construction process covering slope surface trimming, drilling construction, anchor-rod installation, pressure grouting, reinforcement and formwork for frame beams, concrete pouring, curing, and forming. It analyzes the causes of common quality defects such as drilling deviation, insufficient grouting compactness, beam cracking, and inadequate anchoring force, and constructs a refined whole-process quality control system. Engineering practice shows that standardized construction and precise quality control can significantly improve the overall stability and durability of slopes, greatly reduce the occurrence rate of defects, and provide technical reference for similar highway slope protection projects.