岩质边坡稳定性评估的多维云模型

现代矿业 ›› 2020, Vol. 36 ›› Issue (11): 44-49.

岩质边坡稳定性评估的多维云模型

张青¹陈娟²鲁立胜³曹作忠^1，4 段蔚平^1，4

1.中钢集团马鞍山矿山研究总院股份有限公司；2.沂水县自然资源和规划局；3.安徽铜冠池州资源有限公司；4.金属矿山安全与健康家重点实验室

出版日期:2020-11-25 发布日期:2021-09-26

Stability Evaluation of Rock Slope Based on Multidimensional Cloud Model

ZHANG Qing¹ CHEN Juan² LU Lisheng³ CAO Zuozhong^1,4 DUAN Weiping^1,4

1.Sinosteel Maanshan General Institute of Mining Research Co.,Ltd.；2.Natural Resources and Planning Bureau of Yishui County；3.Anhui Tongguanchizhou Resources Co.,Ltd.; 4.State Key Laboratory of Safety and Health for Metal Mine

Online:2020-11-25 Published:2021-09-26

摘要/Abstract

摘要： 为了准确地评估岩质边坡的稳定性等级，针对边坡稳定性受众多评价因素影响，具有较强的随机性和模糊性特点，提出运用多维云模型理论，进行岩质边坡稳定性等级评估。从地形地貌、岩体环境特征、人工开挖、地震及气象水文5个大指标出发，选取14个因素作为岩质边坡稳定性等级评判指标。基于云理论，采用指标近似法得出云模型数字特征，综合各评判指标的相关度和信息量，结合改进CRITIC法确定评判指标权重，生成岩质坡稳定性等级评估的多维云模型。运用该模型，输入重钢集团西昌太和铁矿中的8组岩质边坡的指标实测值得到隶属于各标准边坡稳定性等级的综合确定度，依据最大确定度原则确定边坡稳定性等级。并将评估结果并与一维云模型、模糊评判法、CSMR法以及边坡的实际状态进行比对。结果表明，多维云模型应用于岩质边坡稳定性评估中更加高效，且准确度较高。

关键词: 稳定性评估多维云模型改进CRITIC法确定度

Abstract: In order to evaluate the stability grade of rock slope accurately,the multidimensional cloud model theory is proposed to evaluate the stability grade of rock slope according to the characteristics of randomness and fuzziness,which are influenced by many evaluation factors.From the five indexes of topography,rock mass environment,artificial excavation,earthquake,meteorology and hydrology,14 factors are selected as the evaluation indexes of rock slope stability.Based on the cloud theory,the digital characteristics of the cloud model are obtained by using the index approximation method,and the weight of each evaluation index is determined by combining with the improved critical method to generate a multidimensional cloud model for the evaluation of rock slope stability grade.By using this model,the measured values of 8 groups of rock slopes in xichangtaihe iron mine of Chongqing Iron and Steel Group are input to the comprehensive certainty degree of each standard slope stability grade,and the slope stability grade is determined according to the principle of maximum certainty degree.The evaluation results are compared with onedimensional cloud model,fuzzy evaluation method,CSMR method and the actual state of slope.The results show that the multidimensional cloud model is more efficient and accurate in the evaluation of rock slope stability.

Key words: stability assessment, multidimensional cloud model, improved CRITIC method, certainty

张青陈娟鲁立胜曹作忠段蔚平. 岩质边坡稳定性评估的多维云模型[J]. 现代矿业, 2020, 36(11): 44-49.

ZHANG Qing CHEN Juan LU Lisheng CAO Zuozhong DUAN Weiping. Stability Evaluation of Rock Slope Based on Multidimensional Cloud Model[J]. Modern Mining, 2020, 36(11): 44-49.

扫码分享