岩质边坡坡体结构分类及其工程意义

发布时间：2018-10-18 17:39

【摘要】：坡体地质条件分析是岩质高边坡稳定性和支护设计的基础,现有的地质分析方法多立足于现象描述和岩体结构分析,缺乏合理的指标反映边坡的结构特性,不便于设计人员应用。介绍坡体结构的概念,然后论述了坡体结构的建立方法,即在边坡地质调查分析的基础上,重点考虑坡体内部的主控制结构面,并全面分析坡体工程地质岩组、临空面特性、地质构造形迹、岩体浅表生改造形迹、自然营力作用结果、地下水发育状况等结构要素,建立坡体结构。通过对西南地区已建与在建工程中边坡地质条件的总结分析,划分了6类10型坡体结构类型,初步建立了坡体结构的分类体系。在此基础上,建立起坡体结构与破坏模式的对应关系,为进一步的稳定性分析和支护设计提供计算模型与方法选择依据,阐述了坡体结构研究结果在边坡工程中的重要应用价值。
[Abstract]:The analysis of slope geological conditions is the basis of the stability and support design of high rock slope. Most of the existing geological analysis methods are based on the description of phenomena and the analysis of rock mass structure, and lack of reasonable indicators to reflect the structural characteristics of the slope. Not easy for designers to apply. This paper introduces the concept of slope body structure, and then discusses the building method of slope body structure, that is, on the basis of slope geological investigation and analysis, the main control structural plane inside slope body is considered emphatically, and the characteristics of slope body engineering geological rock group and face surface are analyzed comprehensively. The slope body structure was established by geological structural trace, shallow surface reconstruction of rock mass, natural force, groundwater development and other structural elements. Based on the summary and analysis of the geological conditions of the slope in the construction and construction projects in southwest China, six types of 10 types of slope structure are divided and the classification system of the slope body structure is preliminarily established. On this basis, the corresponding relationship between the structure of the rise slope and the failure mode is established, which provides the basis for the calculation model and method selection for further stability analysis and support design. The important application value of the research results of slope structure in slope engineering is expounded.
【作者单位】：四川电力设计咨询有限责任公司;西南交通大学土木工程学院;西南交通大学地球科学与环境工程学院;
【基金】：国家自然科学基金资助项目(51178402)
【分类号】：U416.14

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