某高速公路软岩路堑边坡的稳定性评价
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摘要
以某高速公路软岩路堑边坡为例,在分析坡体岩性和结构的基础上,结合地表和深部变形监测,定性评价边坡的稳定性,然后采用传递系数法计算边坡在开挖前、原设计开挖至3级坡和新的边坡设计方案下的稳定性系数,定量研究边坡的稳定性。研究结果表明,新的设计方案下边坡较稳定,稳定性系数均达到规范要求,防治方案可行。
Taking a soft rock cutting slope of a expressway as an research example,the stability of the slope is qualitatively evaluated according the lithology and structure of the slope and the monitoring date of surface and deep deformation.Then the transfer coefficient method is used to calculate the stability coefficient of the slope under the condition before excavation,excavation to grade 3 under the original design and new slope design,to quantitatively evaluate the stability of the slope. The research results show that the slope of the new design is relatively stable,the stability coefficient is up to the standard requirement and the control scheme is feasible.
Taking a soft rock cutting slope of a expressway as an research example,the stability of the slope is qualitatively evaluated according the lithology and structure of the slope and the monitoring date of surface and deep deformation.Then the transfer coefficient method is used to calculate the stability coefficient of the slope under the condition before excavation,excavation to grade 3 under the original design and new slope design,to quantitatively evaluate the stability of the slope. The research results show that the slope of the new design is relatively stable,the stability coefficient is up to the standard requirement and the control scheme is feasible.
引文
[1]贠永峰,王飞.浅析某软岩路堑边坡治理[J].中国安全生产科学技术,2012,8(6):173-177.
[2]荣冠,王思敬,王恩志,等.强降雨下元磨公路典型工程边坡稳定性研究[J].岩石力学与工程学报,2008,27(4):4-11.
[3]丁参军,张林洪,于国荣,等.边坡稳定性分析方法研究现状与趋势[J].水电能源科学,2011,29(8):112-114.
[2]荣冠,王思敬,王恩志,等.强降雨下元磨公路典型工程边坡稳定性研究[J].岩石力学与工程学报,2008,27(4):4-11.
[3]丁参军,张林洪,于国荣,等.边坡稳定性分析方法研究现状与趋势[J].水电能源科学,2011,29(8):112-114.