渑栾高速采空区路段建设场地稳定性评价研究

针对老采空区上方建设场地在稳定性评价方面存在模糊性和复杂性的不足,基于三角模糊层次分析法与云模型，对渑栾高速采空区路段建设场地进行了稳定性评价研究。首先，顾及水文地质条件、开采技术条件、场地变形特征和外界扰动四方面因素，建立了老采空区上方建设场地稳定性综合评价模型；其次，考虑到评价过程的复杂性与不确定性，提出三角模糊函数的层次分析法用于确定各评价指标的权重；最后，采用云模型将研究区域各影响因素的评语集转换为云模型的数字特征，再结合评价指标的权重可以得出研究区域的稳定性等级。将研究成果应用于渑栾高速采空区路段建设场地的稳定性评价，结果表明：该区域路段建设场地主要呈稳定和基本稳定状态，据此提出了适用于渑栾高速采空区路段的路基、路面处治对策。

Study on the Stability Evaluation of the Mianluan Expressway Construction Site on the Goaf

In order to solve the deficiency of fuzziness and complexity in the stability evaluation of the construction site above the old goaf,based on the triangular fuzzy analytic hierarchy process and cloud model,the stability evaluation of the construction site in the goaf section of Mianluan Expressway is studied.First of all,taking into account the hydrogeological conditions,mining technical conditions,site deformation characteristics and external disturbance,a comprehensive evaluation model of construction site stability above the old goaf is established.Secondly,considering the complexity and uncertainty of the evaluation process,the analytic hierarchy process of triangular fuzzy function is proposed to determine the weight of each evaluation index.Finally,the evaluation set of the influencing factors in the study area is transformed into the digital characteristics of the cloud model by using the cloud model,and the stability grade of the study area can be obtained by combining the weight of the evaluation index.The study results are applied to the stability evaluation of the construction site of Mianluan Expressway.The results show that the stability of construction site is mainly stable and basically stable,and based on this,the countermeasures of subgrade and pavement treatment that are applicable to the goaf section of Mianluan Expressway are proposed.