摘要
理论上,据边坡设计坡面来编录展示结构面的迹线分布应与其在坡面内的侧伏交线一致。把握一定的侧伏规律,处以适当的素描技法,既可吻合实际情况,又可提高绘图效率和资料质量,对边坡结构模型的准确分析不无裨益。有鉴于此,经过现场观测总结,分析了结构面与坡面的各种交切关系及其迹线的侧伏特征。在侧伏规律公式推导的基础上,根据两者产状提出其特征三角形判别法,并编制相应的算图,可校核以及在适当条件下推测某一产状要素。讨论了实践中几类难以作图的特殊情况下侧伏规律的应用。
In theory,the extension of a discontinuity trace in revealing detailed map of the excavated surface by rock slope design must be in accordance with the pitch of the intersecting line of discontinuity and excavated surface on the latter.Grasping the pitch regularity and manipulating the appropriate sketch technique maybe not only make the trace map coincide with the in-site actual situation,but also increase drawing efficiency and data quality,without no avail of the accurate analysis for slope structure model.In view of this,by means of in-site observation and conclusion,relationships between discontinuity and slope surface and properties of discontinuities traces are analyzed.Based on formulas to express pitch rules,the discriminance of pitching by features triangle,which is inferred from both attitudes of discontinuity and slope surface,is proposed.Meanwhile,nomograph to determine pitch of discontinuity trace is drawn up.Under the proper condition,checking and concluding one of essentials of attitude by other one is discussed.Practical application of pitch regularity to a particular case,the trace of which is difficult to draw,is illustrated.
出处
《工程地质学报》
CSCD
北大核心
2011年第1期11-20,共10页
Journal of Engineering Geology
基金
雅砻江水电开发联合研究基金重点项目(50539050)
教育部创新团队发展计划(IRT0812)
关键词
地质素描
侧伏角
结构面迹线
展示图
边坡结构模型
Geological sketch
Angle of pitch
Discontinuity trace
Reveal detailed map
Slope structure model
