【摘要】 本文以BARTON的标准粗糙度剖面为研究对象,假定剪切方向为从左向右,量取剖面曲线长L以及"爬坡"时的倾角i_i和与倾角相对应高差h_i、面积S,把不同的因素组合在一起,用MATLAB对测得的数据进行拟合,得到用来估算结构面粗糙度系数且不依赖于结构面长度的解析方程。结果表明:剖面长度比和面积比组合得到的拟合方程较差,剖面长度比、面积比和爬坡高组合得到的方程较好;剖面长度比、倾角i_i和高差h_i三个指标的组合拟合方程最好,可很好地反映结构面粗糙度,拟合优度达97. 1%。更多还原

【Abstract】 This paper takes the standard roughness profile of Barton as the research object. Assuming the shear direction is from left to right,the length of the profile curve( L),the dip angle( i_i) of the"climb slope" and high difference( h_i) correspond to the dip angle,the area( S) were measured. By combining different factors,MATLAB was used to fit the data and acquire analytic equation,the equation was then used to estimate the roughness coefficient of the structural plane,which is not depends on the length of the structure. The results show that ratio of the length of the profile curve and area ratio combination of fitting equation is poorer; ratio of the length of the profile curve,area ratio and high difference combination equation is better; ratio of the length of the profile curve,dip angle and high difference,the combination of the three indicators of the fitting equation is best,can well reflect the structure surface roughness,the fitting degree is 97. 1%.更多还原