碎裂岩体等效工程特性试验研究
EXPERIMENTAL STUDY ON EQUIVALENT ENGINEERING CHARACTERISTICS OF CATACLASTIC ROCK MASS
谢晔 1荀晓慧 1魏玉峰 1聂德新1
作者信息
摘要
碎裂岩体作为一种结构复杂、强度较弱的岩体类型,在工程中通常作为弱带而被处理.为了探究碎裂岩体的工程特性,从碎裂岩体的物理力学特性入手,利用自行研发的原位取样新技术,对不同电站碎裂岩体原位状态下的粒度成分、密度、孔隙比等物理指标进行深入分析,以公伯峡水电站碎裂岩体为研究对象,开展了室内等效压密试验,通过与国内外沉积物压密试验成果及现场原位物理参数测量结果进行对比,成功验证了室内等效压密试验能够获得与原位应力状态下相同的物理力学指标.
Abstract
Cataclastic rock mass,as a type of rock mass with complex structure and weak strength,is usually treated as a weak zone in engineering practice.In order to explore the engineering characteristics of cataclastic rock mass,starting from the physical-mechanical properties of cataclastic rock mass,this study employs self-developed in-situ sampling technology to conduct an in-depth analysis of physical indicators such as particle size composition,density,and porosity of fractured rock masses in different power stations under in-situ conditions.Gongboxia Hydropower Station was taken as the research object to conduct indoor equivalent compaction tests.By comparing the results of sediment compaction tests and in-situ physical parameter measurements at home and abroad,it has been successfully verified that indoor equivalent compaction tests can obtain the same physical and mechanical indicators as in-situ stress situation.
关键词
碎裂岩体/等效压密/物理指标/工程特性Key words
cataclastic rock mass/equivalent compaction/physical parameters/engineering characteristics引用本文复制引用
出版年
2023
NETL
NSTL
维普
万方数据