澜沧江藏东流域岩体结构面分形研究  

Fractal analysis on structural planes of rock mass in Lancang River Basin of eastern Tibet

作　　者：张丽华[1] 陈筠[1] 余波[2] 王晓朋[2] 

机构地区：[1]贵州大学资源与环境工程学院,贵州贵阳550025 [2]中国电建贵阳勘测设计研究院有限公司,贵州贵阳550081

出　　处：《人民长江》2016年第4期37-42,共6页Yangtze River

基　　金：贵州省地质灾害监测预警与决策支持平台建设(Z113278);贵州大学研究生创新基金项目(研理工2015062)

摘　　要：基于澜沧江藏东流域岩体结构面的现场编录资料和分形理论,验证了研究区岩体结构面具有自相似性,符合分形特征。通过对研究区35个平硐、5 000余米长度平硐揭露的岩体结构面进行计算分析,用分形维数定量描述了岩体质量等级、岩体卸荷风化强弱分带。尝试通过细化计算平硐内结构面分形维数,实现运用分维值对工程中岩体质量进行评价和对岩体卸荷风化强弱进行划分。Based on fractal theory and the field data catalogs of rock mass structural planes in Lancang River Basin, eastern Tibet, we verified the self - similarity of the structural planes of rock mass in the study area, which is in line with the fractal feature. Through calculation and analysis of the rock mass planes of 35 adits with length of more than 5 000 meters, the rock mass quality grade, rock unloading deformation and weathering belt are described quantitatively by using fractal dimension. Further, we tentatively assessed the rock mass quality and classified the unloading and weathering level by refining the fractal dimension of the adits.

关 键 词：岩体结构面 分形维数 岩体质量 卸荷风化分带 藏东 

分 类 号：P642[天文地球—工程地质学]