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临岩堆边坡填方高速公路稳定性评价研究

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西南地区地质条件较差,广泛存在松散岩堆边坡,天然岩堆呈极限平衡状态,具有潜在失稳风险.在岩堆边坡新建填路,在外力作用下岩堆边坡极限平衡打破,填方道路可能出现失稳,填方边坡薄弱面发生局部或整体滑动,威胁高速公路工程建设.本文以云南岩堆边坡填方高速公路为典型实例,通过收集资料岩堆内部沉积结构特征,反演分析岩堆边坡稳定状态和参数,进一步分析运用数值模拟分析得到填方道路稳定性与变形破坏之间的关系,验证了加固岩堆边坡填方道路稳定特性,证明施工方案的可靠性.
Study on Stability Evaluation of Expressway Filling on Linyandui Slope
The geological conditions in the southwestern region are poor,and there are widespread loose rock slopes.Natural rock piles are in a limit equilibrium state,with potential instability risks.A new filling road is built on the rock slope,and under the action of external forces,the limit equilibrium of the rock slope is broken.The filling road may become unstable,and the weak surface of the filling slope may experi-ence local or overall sliding,posing a threat to highway engineering construction.This article takes the filling expressway of Yandui Slope in Yunnan Province as a typical example.By collecting data on the internal sed-imentary structure characteristics of Yandui Slope,inverting and analyzing the stability status and parameters of Yandui Slope,and further analyzing the relationship between the stability and deformation failure of the filling road using numerical simulation analysis,the stability characteristics of the reinforced Yandui Slope filling road are verified,and the reliability of the construction plan is proven.

rock pile slopehigh-speed fillingexcavation constructionearthquake saturation

黄官平、王晓飞

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杭州市公路与港航管理服务中心,浙江 杭州

安徽省交通规划设计研究总院股份有限公司,安徽 合肥

岩堆边坡 高速填方 开挖施工 地震饱水

2024

科学技术创新
黑龙江省科普事业中心

科学技术创新

影响因子:0.842
ISSN:1673-1328
年,卷(期):2024.(4)
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