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膨胀岩湿胀本构研究综述

Review of Swelling Constitutive Model of Expansive Rock

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【作者】 赵二平张聪李建林蒋尚家车德龙

【Author】 ZHAO Er-ping;ZHANG Cong;LI Jian-lin;JIANG Shang-Jia;CHE De-long;Hubei Key Laboratory of Disaster Prevention and Mitigation,China Three Gorges University;

【机构】 三峡大学防灾减灾湖北省重点实验室

【摘要】 膨胀岩湿胀特性对膨胀岩地区隧洞、路基、边坡等稳定性具有很大的潜在威胁,而湿胀本构关系是膨胀岩变形分析的一个重点,也对膨胀岩地区工程岩体的变形预测、稳定性评价具有十分重要的实际价值和理论意义。本文从湿胀本构关系的建立条件及方法出发,系统分析了目前膨胀岩湿胀本构的研究进展;并结合工程岩体实际赋存条件,提出应该考虑工程开挖施工及运营全过程,以岩体赋存应力条件及水环境条件的变化为依托,微细观数值模拟机理分析与宏观力学反应相结合,以此构建膨胀岩湿胀本构关系。

【Abstract】 The swelling characteristics of expansive rock have a great potential threat to the stability of tunnels, roadbeds and slopes in expansive rock areas. The swelling constitutive relationship is a key point in the deformation analysis of expansive rock, and it also has very important practical value and theoretical significance for the deformation prediction and stability evaluation of engineering rock mass in expansive rock areas. Based on the establishment conditions and methods of the swelling constitutive relation, this paper systematically analyzes the current research progress of the swelling constitutive relation of expansive rock. Combined with the actual occurrence conditions of engineering rock mass, it is proposed that the whole process of engineering excavation construction and operation should be considered. Based on the changes of rock mass occurrence stress conditions and water environment conditions, the micro-scale numerical simulation mechanism analysis and macro-mechanical reaction are combined to construct the swelling constitutive relationship of expansive rock.

【基金】 国家自然科学基金资助项目(U2034203);湖北省自然科学基金资助项目(2020CFA049)
  • 【分类号】TU45
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