基于EAHP模型的市政隧道原位二扩四爆破效果评价  

Evaluation of the blasting effects of insitu two-to-four lane expansion in the municipal tunnels based on EAHP model

作　　者：吴丹红 吴立[1] 闫天俊[1] 何瑞冰 谢玲丽 董道军[1] Wu Danhong;Wu Li;Yan Tianjun;He Ruibing;Xie Lingli;Dong Daojun(Faculty of Engineering,China University of Geosciences(Wuhan),Wuhan 430074,China)

机构地区：[1]中国地质大学(武汉)工程学院,武汉430074

出　　处：《地质科技通报》2023年第3期46-54,共9页Bulletin of Geological Science and Technology

基　　金：国家自然科学基金项目(41672260)。

摘　　要：为准确评判隧道拆除爆破效果,保证原位二扩四市政隧道工程在爆破施工期间车辆正常通行,减少既有隧道衬砌结构爆破拆除及扩挖过程的风险,应用物元理论建立了基于EAHP的隧道爆破效果综合评价模型。首先,从爆破方案设计、爆区周边环境、爆破施工质量、爆破器材及爆破安全技术5个方面选取了29个评价因素指标,并划分为5个评价等级。其次,利用可拓变换构建初等关联函数,计算各爆破效果影响因素指标相对评价等级之间的关联度,同时引入层次分析法(AHP法)确定指标权重,根据最大关联度原则判定隧道爆破效果等级,由此建立基于可拓学-层次分析法的综合评价方法,即EAHP。结果表明,将该方法应用于浙江省楼山隧道原位二扩四工程爆破效果评价,得出爆破效果评定结果为K_(max)=K_(2)=-0.0309,即原位二扩四隧道爆破效果评价级别为“爆破效果较好”,与工程实际情况相吻合。因此,基于EAHP综合评价模型选取的评价指标和权重系数合理可靠,通过可拓变换求得的最大关联度也能较好地反映隧道爆破效果等级,说明基于EAHP模型的综合评价方法对隧道爆破效果评判具有较好的适应性。To accurately evaluate the blasting effect of tunnel demolition,guarantee the normal traffic of vehicles during the blasting for insitu two-to-four lane expansion in the municipal tunnels,and reduce the risk of blasting demolition as well as expansion of existing tunnel linings,a comprehensive evaluation model of the tunnel blasting effect based on EAHP was established with the matter-element theory.First,29 evaluation factors were selected from 5 aspects:blasting scheme design,surroundings of blasting area,blasting quality,blasting materials,blasting safety technology,and 5 evaluation grades were demarcated.Second,the primary correlation function established with extension transformation was adopted to calculate the correlation degree of influencing factors of blasting effects to the evaluation grade,an analytic hierarchy process(AHP)method was introduced to determine the index weight,and the blasting effect grade was determined according to the principle of maximum correlation degree.Therefore,an integrated evaluation method based on Extenics-AHP,namely,EAHP,was established.The results showed that this method was applied to the blasting effect evaluation of the insitu two-to-four lane expansion project in Loushan Tunnel in Zhejiang Province,and the blasting effect evaluation result was K_(max)=K_(2)=-0.0309,namely,the blasting effect evaluation level of the insitu two-to-four lane expansion in the tunnel was"good blasting effect",which was consistent with the actual condition of the project.Therefore,the evaluation indexes and weight coefficients selected based on EAHP model were reasonable and reliable,and the maximum correlation degree obtained by extension transformation could also better reflect the grade of the tunnel blasting effect,indicating this evaluation method had better adaptability to tunnel blasting effect evaluation.

关 键 词：物元理论 EAHP模型 原位二扩四隧道 隧道爆破效果评价 

分 类 号：TD235.46[矿业工程—矿井建设]