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首页> 外文期刊>Journal of the Geological Society of India >Investigating the frictional response of granitic rock surface: An experimental approach
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Investigating the frictional response of granitic rock surface: An experimental approach

机译：研究花岗岩岩石表面的摩擦响应：一种实验方法

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摘要

Rock friction varies as a function of mainly four parameters that are waiting time and velocity of motion between two frictional surfaces, surface roughness and normal stress. In this paper, a study on former two aspects of rock frictional behaviour has been attempted for granitic rock surface. In one experiment, waiting time for which the two surfaces remain in contact is increased from 20 seconds to 18 hours. In the second experiment, waiting time is kept constant for a series of rock slip experiments where the velocity is increased from 10μm/sec to 350μm/sec. The value of critical velocity is obtained from transformation of the stick slip motion to steady motion occurs. The relation of coefficients of dynamic and static friction with increasing velocity of motion is studied and these are used to calculate the frictional constants, namely ‘a’ and ‘b’ specific to the chosen simulation type.
机译：岩石摩擦系数主要取决于四个参数，即等待时间和两个摩擦面之间的运动速度，表面粗糙度和法向应力。本文尝试对花岗岩岩石表面的岩石摩擦行为的前两个方面进行研究。在一个实验中，两个表面保持接触的等待时间从20秒增加到18小时。在第二个实验中，一系列岩石滑移实验的等待时间保持不变，其中速度从10μm/ sec增加到350μm/ sec。临界速度的值是从发生粘滑运动到平稳运动的过程中获得的。研究了动摩擦系数和静摩擦系数与运动速度的增加之间的关系，并将其用于计算摩擦常数，即特定于所选模拟类型的摩擦常数“ a”和“ b”。

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