基于多元联系数的地铁钻爆法施工风险评价研究

A Risk Evaluation of Metro Drilling and Blasting Based on Multivariate Connection Number Method

为提高地铁钻爆法施工风险评价的科学性,对钻爆法地铁施工过程中的风险因素进行分析,建立了钻爆法地铁施工风险评价指标体系,并引入集对分析中的多元联系数理论,将风险评价作为一个不确定性系统进行分析,运用更适合不确定性系统的区间层次分析确定风险评价体系各指标的权重,根据相关规范,建立基于集对分析的四元联系数的风险同异反评价模型,并对得出的联系数分量数值结果进行系统分析。通过计算各阶偏联系数对钻爆法地铁施工风险的发展趋势进行分析。通过实际案例进行风险联系数的计算与分析,验证了该方法在地铁钻爆法施工风险评价及其趋势分析中的适用性。

In order to improve the risk evaluation of Metro drilling and blasting,this paper analyzes the risk factors of Metro drilling and blasting and establishes a risk evaluation index system.The multivariate connection number theory is introduced and an analytical hierarchy,who is more suitable for the uncertain system,is applied to determine the weights.Based on the analysis of contact element IDC evaluation model,the results of the connected components are systematically analyzed.Finally,the trend of the risk in metro drilling and blasting is analyzed by calculating the partial alignment coefficient.By implementing the proposed method to the real case to calculate the risk connection number,the feasibility of this method in risk assessment and trend analysis of Metro drilling and blasting method is verified.