片理角度对绿泥石片岩强度控制的研究  

Study on the control of fragment angle on the strength of chlorite schist

作　　者：孙泽宁[1] 刘珠兰 刘洪建 Sun Zening;Liu Zhulan;Liu Hongjian(Qingdao University of Technology,Qingdao 266000,China)

机构地区：[1]青岛理工大学,山东青岛266000

出　　处：《山西建筑》2022年第3期86-88,91,共4页Shanxi Architecture

基　　金：国家自然科学基金(52179104);山东省自然科学基金(ZR2019BEE051,No.ZR2020ME099,No.ZR2020MD111)。

摘　　要：依托坐落于我国西南山区的黄藏寺水利枢纽工程,开展了绿泥石云母片岩的基本力学参数试验,对不同片理角度的绿泥石云母片岩的强度参数进行研究,并得到绿泥石云母片岩的单轴抗压强度随片理角度变化呈“V”字型分布,随片理角度增大破坏形式由剪切破坏为主,转变为由劈裂破坏为主;基于上述研究结果对不同片理角度的崖坡模型利用BBM-DFN模型进行建模,并最终得到片理角度对陡崖稳定性的影响为片理角度45°时危险系数最高,片理角度为75°时危险系数最低。Based on huang Tibetan temple in the mountains of is located in the southwest water conservancy hub project,carry out the basic mechanics parameter test of chlorite mica schist,chlorite mica schist of different angle of schistosity of strength parameters is studied,and get the chlorite mica schist of uniaxial compressive strength changes with schistosity angle distribution is a“V”word,damage forms by the shear failure is given priority to,converted into splitting failure;based on the above research results,the BBM-DFN model was used to model the cliff slope models with different foliation angles,and the influence law of foliation angles on the stability of the steep cliff was finally obtained.

关 键 词：绿泥石云母片岩 单轴试验 BBM-DFN模型 

分 类 号：TU457[建筑科学—岩土工程]