TY - JOUR
TI - Flow field characteristics of ultra-high pressure post-mixed abrasive water jet applied for non-explosive tunnel excavation
AU - Yang Xiu-Li
AU - Tang Qi
AU - Liu Xiu-Cheng
AU - Guan Zheng-Lin
AU - Wu Xiao-Guang
AU - Zhang Zhuang-Zhuang
AU - Sun Yao-Yao
JN - Thermal Science
PY - 2025
VL - 29
IS - 2
SP - 1131
EP - 1136
PT - Article
AB - Ultra-high pressure abrasive water jet (AWJ), as a non-explosive tunnel  excava­tion method, is proposed to reduce the impact on surface resident and  other envi­ronmentally sensitive areas. In this paper, we carried out  multi-phase simulation analysis of AWJ flow field based on Euler model to  optimize the operation parame­ters of the post-mixing AWJ under the dual  constraints of jet velocity and abrasive consumption. The characteristics of  sand mixing in the nozzle, the evolution of the flow field and abrasive  consumption under ultra-high pressure were obtained and analyzed.  Considering the joint constraints of jet velocity and abrasive con­sumption,  the operation parameters were optimized and recommended for tunnel contour  cutting. This study is expected to provide theoretical and engineering  guid­ance for future application of high pressure AWJ non-explosive tunnel  excavation.