For long-distance rock pipe jacking, the coupled actions of mud float and sediment generate pipe-rock interactions, which are challenging from the analysis point of view and the general methods available for calculating the friction resistance of pipe-soil can lead to unrepresentative results. These friction forces must be quantified properly, as the magnitude of those determines the technical and economical construction requirements. In this regard, a novel approach that combines experimental and numerical stages is proposed in this research paper for dealing with the assessment of these friction forces. The results derived from the proposed approach were compared and validated with others obtained from a practical case, with satisfactory outcomes. The approach proposed herein is found to be a valuable guide for assessing the magnitude of the frictional forces that occur during the pipe jacketing and for identifying the parameters that govern the magnitude of these forces. Eventually, design and construction optimization and productivity-oriented measures can be derived from the application of the method.

对于长距离岩石顶管，浮泥和沉积物的耦合作用会产生管岩相互作用，从分析的角度来看具有挑战性，可用于计算管土摩擦阻力的通用方法会导致不具有代表性的结果. 这些摩擦力必须正确量化，因为这些摩擦力的大小决定了技术和经济建设要求。在这方面，本研究论文提出了一种结合实验和数值阶段的新方法来处理这些摩擦力的评估。从所提出的方法得出的结果与从实际案例中获得的其他结果进行了比较和验证，取得了令人满意的结果。发现本文提出的方法是评估管道护套过程中发生的摩擦力大小和确定控制这些力大小的参数的宝贵指南。最终，可以从该方法的应用中推导出设计和施工优化以及以生产力为导向的措施。