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竹城公路顺层岩质边坡稳定性及工程设计研究
Study on Stability and Reinforcement Technique of Rock Bedded Slope of Zhu-cheng Road
【作者】 姚平;
【作者基本信息】 中南大学 , 地质工程, 2007, 硕士
【摘要】 层状结构边坡分为:水平坡、顺层坡和逆层坡,其中顺层坡最容易发生失稳破坏。对于顺层岩质边坡,国内外目前对其的失稳机理、稳定性评价与工程设计己有一定的研究,取得了一定的认识,但尚不能将研究成果很好的用于实际工程中。论文对顺层岩质边坡稳定性的影响因素进行了归纳总结;根据顺层岩质边坡结构特征进行了分类,并对其破坏模式进行了探讨;介绍了常用的一些顺层岩质边坡稳定性分析方法,分析了这些方法的适用性及优缺点;对顺层岩质边坡的工程设计进行了研究,归纳了顺层岩质边坡的工程设计流程及10条工程设计建议,以便于指导工程设计施工;最后将研究成果应用于竹城公路K82-K83段边坡,在对该段边坡采用赤平极射投影方法和FLAC3D数值模拟方法进行稳定性分析评价后,综合考虑多方面因素对不稳定边坡段提出了全长注浆锚杆长短交错布置的支护方案。
【Abstract】 Layered slopes included: The level slopes, bedding slopes and inverse slopes, in which bedding slopes are destroyed early. As to bedding slopes, at present the collapsing mechanism, the stability appraises and the project designs were preliminary researched at home and abroad, certain cognition was gotten, but still not put studying achievement into actual project with good effects.Firstly stability effect factor of bedding rock slopes were summarized; secondly, according to structure pattern bedding rock slopes were classified, and destroying models were discussed; subsequently some stability analysis methods of bedding rock slopes were introduced, applicability and merits and faults of these methods were analyzed; then the engineering design of bedding rock slopes were studied, engineering design technological process and 10 design advice were summarized, which was easy to guide engineering design and construction. In the end research production were applied in slopes of Zhucheng highway K82-K83, after stability analysis appraisal of this slopes with stereographic projection methods and FLAC3D numerical value simulation methods, wholly grouted bolts supporting system was put forward to unsteady crisscrossing slope.
- 【网络出版投稿人】 中南大学 【网络出版年期】2009年 01期
- 【分类号】P642
- 【被引频次】6
- 【下载频次】274