文献类型：期刊文献

中文题名：基于蠕变终止轨迹的岩石长期强度推算法

英文题名：Long term strength prediction method for rockbased on creep termination trajectory

作者：刘显刚 徐智涵 周靖霖 黄显耀 董海龙

第一作者：刘显刚

机构：[1]贵州省贵阳公路管理局,贵州贵阳550001;[2]贵州理工学院交通工程学院,贵州贵阳550003

第一机构：贵州省贵阳公路管理局,贵州贵阳550001

年份：2024

卷号：50

期号：8

起止页码：76-78

中文期刊名：四川建材

外文期刊名：Sichuan Building Materials

基金：贵州省科学技术厅2022年度基础研究计划(自然科学)项目(黔科合基础-ZK[2022]一般169);2023年贵州理工学院高层次人才科研启动项目:非均匀应力场深软巷道围岩塑性区解析研究;贵州省公路局科技项目:花鱼洞大桥基础施工对原桥结构影响及控制技术研究(GTGLJ-QTHT—2023-0017)。

语种：中文

中文关键词：岩石;长期强度;蠕变终止轨迹;推算方法

外文关键词：rock;long term intensity;creep termination trajectory;calculation method

摘要：岩石长期强度是在长期荷载作用下岩石强度持续而有限趋于的一个稳定低限值,是评估岩土工程长期稳定性的一个重要指标。从蠕变终止轨迹理论出发,结合岩石常规三轴压缩和蠕变试验,介绍了一种相对简捷而准确的推算长期强度的方法;随后,以贵州花鱼洞大桥黄果树岸坡岩样为研究对象,详细给出了该方法用于推算岩石长期强度的具体步骤;最后,以既有文献实例为基础验证该方法的准确性。这一方法可用于快速而准确地确定工程岩石长期强度,研究结果可为有关理论研究和工程实践提供借鉴。
The long-term strength of rock is an important indicator for evaluating the long-term stability of geotechnical engineering,and it is a stable low limit value that the strength of rock tends to be continuous and limited under long-term loading.Starting from the theory of creep termination trajectory and combining with conventional triaxial compression and creep test of rock,this article introduces a relatively simple and accurate method for calculating long-term strength.Subsequently,the rock sample from the Huangguoshu bank slope of the Huayudong Bridge in Guizhou were taken as the research object,and the specific steps for using this method to calculate the long-term strength of rock have been provided in detail.Finally,the accuracy of this method has been validated based on experimental data from existing literature.The method above can be used to quickly and accurately determine the long-term strength of engineering rock,and the research result can provide reference for relevant theoretical research and engineering practice.