摘要
【目的】在进行TBM工法施工时,根据地层条件和隧道设计要求来选择合适的TBM类型非常重要。TBM选型不当会导致施工效率低下、应对施工风险困难和施工成本增加等问题,因此,构建一个TBM选型决策模型,在项目规划阶段提出选型指导意见非常有必要。【方法】结合AHP法和TOPSIS法,建立基于TBM选型适应性评价的决策模型,通过采用熵权法优化AHP法中的专家评分,提高了评分的可靠性。研究过程中选择了隧道设计参数、地质情况和不良地质等3类TBM选型适应性指标,如隧道平曲线半径、岩石强度、岩体完整性、岩爆、突涌水等。在文献调研和专家经验的基础上,构建了TBM选型适应性决策模型,并以新疆某水利工程为例验证模型的有效性。【结果】研究结果表明,该模型所做的选型决策与实际情况相符。【结论】研究成果可为项目规划阶段的TBM选型提供有益建议。
[Purposes]When carrying out TBM construction,it is very important to select the appropriate TBM type according to the ground conditions and tunnel design requirements.The improper selection of TBM type will lead to problems such as low construction efficiency,difficulty in dealing with construc⁃tion risks and increase in construction costs.Therefore,it is necessary to construct a TBM selection deci⁃sion model to provide selection guidance in the project planning stage.[Methods]In this paper,a deci⁃sion model based on the adaptive evaluation of TBM selection is established by combining AHP method and TOPSIS method.The reliability of the scoring is improved by using entropy weight method to opti⁃mize the expert scoring in AHP method.Three types of TBM selection adaptability indexes,such as tun⁃nel design parameters,geological conditions and adverse geology,were selected in the research process,such as tunnel flat curve radius,rock strength,rock integrity,rock burst,and sudden water surge.On the basis of literature research and experts′experience,the decision-making model of TBM selection adapt⁃ability is constructed,and the effectiveness of the model is verified with a water conservancy project in Xinjiang as a case study.[Findings]The results show that the selection decision made by the model is consistent with the actual situation.[Conclusions]The results can provide useful suggestions for TBM se⁃lection in the project planning stage.
作者
裴成元
韩书臣
来海祥
王恒超
赵海雷
PEI Chengyuan;HAN Shuchen;LAI Haixiang;WANG Hengchao;ZHAO Hailei(Xinjiang Irtysh River Investment and Development(Group)Co.,Ltd.,Urumqi 830000,China;School of Civil Engineering,Beijing Jiaotong University,Beijing 100044,China;State Key Laboratory of Shield Structure and Tunneling Technology,Zhengzhou 450001,China)
出处
《河南科技》
2024年第9期58-65,共8页
Henan Science and Technology
