边坡岩土工程不确定性及对策分析

Analysis of Uncertainty of Slope Rock-soil Engineering and Countermeasure

研究目的:由于地质条件的复杂性、地质勘探的局限性,边坡岩土工程的设计必须要选择不同的岩土参数和模型对其进行分析,其中岩土模型的选取、力学分析较为复杂,特别是对于地质条件复杂的地区来说,其分析计算的难度就更大,也就产生了较多的不确定因素。本文希望研究出一种最有效的方法、对策来减小不确定性的影响。研究结论:动态设计与施工方法在边坡岩土工程中具有广泛的运用前景,岩土工程设计是否合理,与所采用的工程措施能否适应工程地质条件有关。在施工过程中建立必要的信息收集系统,根据开挖和其它工程所揭示的工程地质条件对设计的岩土力学力学模型和相关参数不断修正完善,真正实现动态设计与施工,这样才更适应边坡岩土工程的特点,更安全、高效地完成工程的设计施工,因此"动态设计与施工"是消除边坡岩土工程不确定性的有效对策。

Research purposes：The design of slope rock-soil engineering has to be made on the basis of the analysis with the different parameters and models for the rock and soil because of the complicated geological condition and limitation of the geological survey,but the choice of model for rock and soil and mechanics analysis are rather complicated.Especially for the area with complicated geological condition,the calculation and analysis are more difficult,resulting in many uncertain factors.What presented in this paper are the countermeasures for reducing the influence of uncertainty of slope rock-soil engineering.Research conclusions：The dynamic design and dynamic construction method have bright applicable future in the slope rock-soil engineering.Whether the design of rock-soil engineering is reasonable or not relates to the adaptability of the engineering measures to the geological conditions.In course of the construction,the information collection system should be established,and the designed mechanics model for rock and soil and relative parameters must be modified and improved according to the geological conditions revealed by excavation and other engineering.In this way,the actual dynamic design and construction can be realized to make the design and construction more adaptable to the features of the slope rock-soil engineering with more safety and higher efficiency.So the dynamic design and construction are the effective way for reducing the uncertainty of the slope rock-soil engineering.