Research on the Floor Heave Mechanism of Roadways in Argillaceous Weakly Cemented Stratum
马保山① MA Bao-shan；权晓鹏② QUAN Xiao-peng；王帅③ WANG Shuai
（①山东惠裕土木工程有限公司，济南 250098；②国家矿山安全监察局陕西局安全技术中心，西安 710001；③枣庄学院城市与建筑工程学院，枣庄 277160）
（①Shandong Huiyu Civil Engineering Co.，Ltd.，Ji忆nan 250098，China；②Safety Technology Center of Shaanxi Bureau of National Mining Safety Supervision Bureau，Xi'an 710001，China；③School of City and Architecture Engineering，Zaozhuang University，Zaozhuang 277160，China）
摘要：弱胶结泥质软岩力学性质随着含水率变化而发生劣化，影响巷道围岩稳定。本文以蒙东地区某矿弱胶结泥质软岩巷道底鼓为工程背景，综合采用现场测试和理论分析方法，揭示巷道底鼓机理；应用地质雷达测试技术获得巷道围岩破坏深度，建立底板力学模型，分析岩性、水理作用、损伤结构强化和支护强度等对巷道底鼓的影响规律，对类似地层巷道围岩变形控制具有指导意义。
Abstract: The mechanical properties of argillaceous weakly rock mass deteriorate with the change of ambient humidity, which adverse to stable control of tunnels. In this paper, floor heave mechanism of roadways over argillaceous weakly stratum in eastern Mongolia is studied by field testing, theoretical analysis and numerical simulation. The failure depth of roadway surrounding rock is obtained by GPR test technology, and the mechanical model of floor is established. The influence law of lithology, hydrologic interaction, structural reorganization and support strength on roadway floor heave is analyzed. The research results have guiding significance for the deformation control of roadway in similar strata.
关键词：底鼓；弱胶结底板；力学模型
Key words: floor heave；weakly cementation；mechanical model
中图分类号：TD353 文献标识码：A 文章编号：1006-4311（2024）28-019-04 doi:10.3969/j.issn.1006-4311.2024.28.006
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