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低等级公路下伏非规则采空区的稳定性分析及治理措施 被引量:3

Stability Analysis on Irregular Goaf Lying under Low-grade Highways and the Governance Measures
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摘要 根据对昆明和下路采空区的现场勘察和探测,针对路基下埋设深度及分散密度具有差异性的非规则采空区巷道,提出了充填浆液、开挖回填与装铺钢筋混凝土板三种不同的综合治理措施,并结合FLAC3D数值模拟分析了低等级公路采空区,使用廉价的水泥黏土浆液取代水泥粉煤灰浆液的可行性,且对装铺在浅埋采空区的钢筋混凝土板的稳定性进行了评价,为处治该等级公路提供参考。 Based on the investigation and detection to the goaf under Hexia Road in Kunming,herein three different comprehensive measures,slurry packing,excavation-backfilling and pavement of reinforced concrete slab,were proposed to govern the irregular goaf roadways which relate to burying depth under subgrade and dispersion density difference.With FLAC3D numerical simulation,goaf under low-grade highway was analyzed,that is to say,the feasibility of replacing cement fly ash with cheaper cement clay slurry;and then the stability of reinforced concrete slab paved in shallow buried goaf was evaluated,offering references for the governance of low-grade highways.
作者 段自侠 屈俊童 字晓雷 卢飞 季东 秦贝 DUAN Zixia;QU Juntong;ZI Xiaolei;LU Fei;JI Dong;QIN Bei(School of Architecture and Planning,Yunnan University,Kunming 650500,China)
出处 《路基工程》 2018年第6期219-225,共7页 Subgrade Engineering
基金 国家自然科学基金项目(51308471) 云南省应用基础研究青年计划(2015FD005) 云南省教育厅科学研究基金项目(2015Y017) 昆明市科学基金项目(2015-1-G-01089)
关键词 低等级公路 下伏非规则采空区 稳定性 治理措施 数值模拟 low-grade highway underlying irregular goaf stability governance measures numerical stimulation
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