岩石-混凝土两相介质胶结面粗糙系数的分形描述

英文篇名：Fractal description of two-phase medium cementation plane roughness coefficient between rock and concrete
中文刊名：煤炭学报
英文刊名：Journal of China Coal Society
作者：朱珍德 ; 邢福东 ; 渠文平 ; 陈卫忠
英文作者：ZHU Zhen-de~1 ; XING Fu-dong~2 ; QU Wen-ping~1 ; CHEN Wei-zhong~3(1.Institute of Geotechnical Engineering ; Hohai University ; Nanjing 210098 ; China ; 2.Institute of Technology and Designing of Communication of Jiangsu Province ; Nanjing 210017 ; China ; 3.Institute of Rock and Soil Mechanics ; Chinese Academy of Science ; Wuhan 430071 ; China)
中文关键词：两相介质 ; 胶结面 ; 粗糙系数 ; 分形描述 ; 分形维数
英文关键词：two-phase medium ; cementation plane ; roughness coefficient ; fractal description ; fractal dimension
出版日期：2006-01-30
机构：河海大学岩土工程研究所,江苏省交通科学设计研究院,河海大学岩土工程研究所,中国科学院武汉岩土力学研究所江苏南京210098,江苏南京210017,江苏南京210098,湖北武汉430071
年：2006
期：01
出版单位：煤炭学报

摘要

针对润扬长江公路大桥南汊悬索桥锚碇胶结面抗剪强度(抗剪强度的大小与胶结面粗糙度紧密相关)取值问题,采用室内控制粗糙系数试验的方法,测试了不同粗糙度的花岗岩与混凝土胶结面的抗剪强度.从形态数学原理出发,建立了均方根坡角法(ARMSS)测算岩石与混凝土胶结面轮廓线的分维数,定量描述其粗糙程度.岩石与混凝土胶结面粗糙系数(JRC)可由分形维数D与分形截距A来确定,通过分形分析可以定量估计岩石力学中的JRC值.
For acquiring the shear strength of cementation plane of south anchor of Runyang suspension bridge,an expressway bridge on the Yangtze River,and because the shear strength was decided by the roughness coefficient of cementation plane,the shear strength between different roughness coefficient granites and concrete were obtained in indoor experiments.Based on three-dimensional surface morphology,a new method called Angle of Root Mean Square Slope method(ARMSS) was proposed to calculate fractal dimensions of profiles of cementation plane.Finally the roughness coefficient(J_(RC)) between rock and concrete can be expressed by fractal dimension D and the fractal intercept A,it is a new method to quantify the J_(RC) in geomechanics by using fractal analysis.

引文

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