公路边坡风险评估软件RASlope的研发与应用

Development and application of software RASlope for highway slope risk assessment

模糊层次分析法在公路边坡风险评估中的运用日渐成熟,为规避该方法步骤多、计算繁杂等欠缺,提高评估效率,本文基于模糊层次分析法原理及步骤,基于MATLAB语言环境,通过需求分析、界面设计、代码编写、功能模块设计等流程研发出公路边坡风险评估软件RASlope。该软件遵循易用性、稳定性、高效性及可拓展性设计原则,由RASlope主界面、权重向量计算界面、隶属度分配界面及评估结果查看界面4个界面集成,可快速完成所有评估步骤,并提供对过程及结果数据另存、读取、分享功能。针对双永高速公路梨子岭隧道进口滑坡典型工程地质特征,设定4类12个风险评估指标体系,应用该软件进行快速风险评估,评估结果契合实际,合理地解释了滑坡诱发关键因素及工程治理的针对性和有效性,取得较好的应用效果,充分验证了该软件的应用价值。

The application of fuzzy AHP in highway slope risk assessment has attracted extensive attention,in order to avoid the deficiencies of fuzzy AHP such as complex steps and large calculation,the highway slope risk assessment software（ RASlope） was developed based on the theory and process of fuzzy AHP under MATLAB programming environment, following the designing principles of simplicity, stability, high effectiveness and expansibility. The development processes of RASlope contain requirement analysis,UI design,code compiling and function modules design. RASlope is composed of 4 graphical user interfaces including main interface,weights assign interface,degree of membership assign interface,results display interface,it was designed to complete all assessment processes and the software itself also provides series of functions to save,share and read in the calculated data and result. According to the typical engineering geological features of Liziling landslide which occurred during the excavation of tunnel portal in Shuangyong highway,a system of 12 indexes which was divided into 4 groups was established and the risk assessment of the landslide was smoothly executed. The key indexes were clearly figured out and their influence mechanisms were analyzed. The assessment consequences obtained by RASlope equate reasonably with real conditions,it proved the pertinence and effectiveness of the control measures on the landslide and adequately corroborated the application value of RASlope.