龙门山断裂带断层岩在水热条件下的摩擦滑动特性实验研究

发布时间：2018-01-22 05:18

  本文关键词： 龙门山断裂带 自然断层泥 断层糜棱岩 层状硅酸盐矿物 有机质 摩擦强度 摩擦滑动稳定性 速率和状态摩擦本构关系　出处：《国际地震动态》2014年08期 　论文类型：期刊论文

【摘要】：正为了探索断层岩石在断层带不同温度和压力条件下其摩擦强度和摩擦滑动稳定性对于断层活动性的影响,我们采集了龙门山断裂带地震发生区段出露的自然断层泥样品和后山断裂带韧性剪切带中的富含层状硅酸盐矿物的糜棱岩样品进行了水热条件下的摩擦滑动实验研究。我们根据自然断层泥样品的XRD分析结果选取了5种具有不同矿物组合及含量的自然断层泥样品并在50MPa的初始围压和25℃~150℃的温度条件下进行了摩擦滑动实验。在
[Abstract]:In order to explore the influence of friction strength and sliding stability of fault rock on fault activity under different temperature and pressure in fault zone. We have collected samples of natural fault gouge exposed in the earthquake occurrence section of Longmenshan fault zone and mylonite samples rich in layered silicate minerals in the ductile shear zone of Houshan fault zone. Friction sliding experiments have been carried out under hydrothermal conditions. According to the XRD analysis results of natural fault gouge samples, five kinds of natural fault gouge samples with different mineral assemblages and contents were selected at the initial confining pressure of 50MPa and the temperature of 150 鈩，

本文编号：1453792