摘要
针对RQD值不能全面反映裂隙间距、块体大小以及随机表象的多重尺度等问题,介绍了三种岩体质量评价图,即基于裂隙岩体分数维结构之上的分维岩体质量图、考虑裂隙长度的累积长度图、建立在不同岩块频度基础上的岩块累积频度图。根据不同图解对岩体质量进行了评价,并对岩体完整性作了划分。三种图解能较全面地反映岩体质量的特点。
The RQD method in rock quality evaluation has the shortcomings of failing to reveal detailed information concerning the discontinuity spacing,block size distribution and irregularity.Respectively based on the concept of the fractal dimension in rock quality description,cumulative intact lengths,and block size distribution,three rock quality charts are introduced in the paper.The additional information about rock quality they could provide has proved that they are valuable complement to RQD value.
出处
《地质科技情报》
CAS
CSCD
北大核心
1999年第1期109-112,共4页
Geological Science and Technology Information