复杂地质结构顺层边坡联合处治技术研究及实际处治应用

在山区基本建设中顺层边坡是常见的岩土工程问题,工程建设挖方改变了原生地质环境,扰动了应力场和原生地貌,对原有稳固岩体结构造成破坏,造成失稳或工程隐患。顺层边坡的稳定性受岩性、岩体结构、结构面位置特征、地下水等诸多因素影响,层间各项属性参数的确定和顺层推力的计算成为顺层边坡设计处治的难点。结合某条高速公路的顺层边坡处治设计及实际施工过程中遇到的问题进行了相应的处治方法研究和设计。结合边坡的处治方法和高速公路的实际地质情况进行了相应的层状岩体及其中的不连续面分析,针对顺层边坡的不稳定性等因素进行了相应的处治,并取得了较好的效果。

Complex geological structure joint bedding slope treatment technology research and application

In a mountainous area in the construction of basic bedding slope is a common geotechnical engineering problem, engineering construction excavation changed the original geological environment, the disturbed stress field and native landscape, damage to the original solid rock mass structure, cause instability or engineering.The stability of the bedding slope is affected by lithology, structure, structural plane of rock mass, the location characteristics, groundwater, and many other factors, the determination of various properties between parameters and layer thrust calculation becomes a crux of bedding design of slope treatment.Based on one of the bedding slopes of highway design and construction of the problems in the process of the research and design the corresponding treatment measures.The highway work area in the southeast of sichuan basin, it is Pen Zhou transition section of northern mountain areas to the yunnan-guizhou plateau, work area topography is complex, relative elevation difference is big, strong structure, rock mass is broken; Area of bad geological for soft ground, collapse, landslide, karst etc, among them with the most prominent of bedding rock cutting slope, analysis and evaluation of the bedding rock cutting slope stability characteristics and the design method of project management, to prevent the happening of the bedding landslide, and correct treatment is the biggest problem of the highway construction.In this paper, combined with slope treatment method and the actual situation of the highway geological discontinuity in the corresponding layered rock mass and its analysis, in view of the bedding slope instability factors such as the corresponding treatment, and achieved good results.