运营高速下伏充水房柱式采空区治理技术研究
Technology Research on Treatment of Water-Filled Room-and-Pillar Goaf under Operational Expressway
DOI: 10.12677/hjce.2025.1410257, PDF,   
作者: 张耿耿, 胡 瑞, 陈 杰：浙江交投高速公路运营管理有限公司金华管理处，浙江 金华
关键词: 高速公路；房柱式采空区；充水采空区；注浆；Expressway； Room-and-Pillar Goaf； Water-Filled Goaf； Grouting
摘要: 本文以运营高速公路下伏充水房柱式采空区为研究对象，通过综合物探手段揭示该采空区的地质构造与空间分布特征，选取典型断面进行稳定性分析，验证了采空区上覆道路结构物处在不稳定–基本稳定状态。采用注浆法对采空区进行处治，针对富水采空区易导致浆液流失、胶结体强度不足等问题，提出“配比优化、帷幕截流、排水减压”的协同处治方案。工程实践表明，该方案可有效控制浆液扩散范围，实现了浆–水置换与动态水位平衡，验证了其在运营高速公路下伏富水采空区治理中的可行性，为类似工程提供参考。
Abstract: This paper takes the water-filled room-and-pillar goaf underlying an operational expressway as the research object. Through engineering geological investigation, the geological structure and spatial distribution characteristics of this goaf are revealed. Typical sections are selected for stability analysis, and it is verified that the road structures overlying the goaf are in an unstable to basically stable state. The grouting method is adopted to treat the goaf. Aiming at the problems of grout loss and insufficient strength of the cemented body easily caused by water-rich goaf, a synergistic treatment scheme of “proportion optimization, curtain interception and drainage decompression” is proposed. Engineering practice shows that this scheme can effectively control the grout diffusion range, realize grout-water replacement and dynamic water level balance, verify its feasibility in the treatment of water-rich goaf underlying operational expressways, and provide a reference for similar projects.
文章引用：张耿耿, 胡瑞, 陈杰. 运营高速下伏充水房柱式采空区治理技术研究[J]. 土木工程, 2025, 14(10): 2385-2392. https://doi.org/10.12677/hjce.2025.1410257

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