冻融作用下锚固裂隙岩体力学响应研究综述

Review on mechanical response of anchored fractured rock mass under freeze-thaw action

冻融循环作用下锚固岩体力学响应与裂隙岩体存在显著区别,研究锚固岩体冻融力学响应对寒区锚固边坡长期安全控制具有重要意义。在裂隙岩体冻融响应研究的基础上,综述了冻融循环作用下裂隙边坡锚固岩体力学响应行为研究进展;从裂隙冻胀力、锚固结构预应力等方面综述了锚固岩体对冻融作用的力学响应研究成果;对锚固岩体冻融力学响应问题研究的发展趋势进行了展望,并指出冻融条件下锚固岩体中冻胀力与锚固力的演变规律是下一步研究的重点。

There is a significant difference between the mechanical response of anchored rock mass and that of fractured rock mass under freeze-thaw cycles.It is of great significance to study the mechanical response of anchored rock mass to the long-term safety control of anchored slope in cold area.Based on the research of freeze-thaw response of fractured rock mass,the research progress of mechanical response behavior of fractured rock mass anchored in fractured slope under freeze-thaw cycle was reviewed in this paper.The research results of mechanical response of anchored rock mass to freeze-thaw action were summarized from the aspects of frost heave force of crack and prestress of anchorage structure.The development trend of research on freeze-thaw mechanical response of anchored rock mass was prospected,and the evolution law of freeze-heave force and anchorage force in anchored rock mass under freeze-thaw condition was the focus of further research.