基于结构面间距标准的层状岩体结构分类方法探讨与应用  

Discussion on the Division Methods of Layered Rock Mass Structure Types Based on the Discontinuity Spacing and Its Application

作　　者：闫长斌[1] 王贵军[1] 常福庆[1] 陈艳国[1] 高旭辉[1] 

机构地区：[1]黄河勘测规划设计有限公司,河南郑州450003

出　　处：《资源环境与工程》2010年第5期574-578,共5页Resources Environment & Engineering

基　　金：黄河勘测规划设计有限公司自主研究开发项目(2009-ky01);国家"十一五"科技支撑计划(2006BAB04A06)

摘　　要：在总结现行规范、规程有关层状岩体结构划分标准的基础上,指出了以结构面间距为划分依据存在的差异与不足,对层状岩体结构分类方案提出新的认识。将巨厚层状结构进一步细分为>1 m和>2 m两个亚类,并将互层状结构融入其他层状结构类型中。同时针对层状岩体风化卸荷与剪切带发育特点,提出了更具针对性的夹层结构。最后,结合建筑物涉及岩组的结构面间距平均值与结构面间距百分比统计资料,初步建立了适用于古贤水利枢纽工程的近水平层状岩体结构划分方案。Based on summarizing the codes about division standards of layered rock mass structure,the differences and shortages of discontinuity spacing as the rule are pointed out,and the new cognizance for the scheme of layered rock mass structure is taken forward.The huge thick layered structure is divided into two sub-classes further,which are 1 m and 2 m,and the interbed structure is included in other layered structures as a whole.The interlayer structure with more pertinence is put forward,as for the characters of weathering and unloading and shear zone of layered rock mass.At last,the division schemes of close to horizontal layered rock mass structure,which are applied to Guxian Project,are founded preliminarily,combined with the statistical data of average and percentage of discontinuity spacing of some rock groups where the buildings are involved.

关 键 词：工程地质 层状岩体 岩体结构类型 结构面间距 

分 类 号：TV223.1[水利工程—水工结构工程]