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April 15, 2026Fluids0 citationsOpen Access

Numerical Study on Flow Characteristics in a Hydrojet Shield Slurry Feeding System

Numerical Study on Flow Characteristics of the Slurry-Feeding System in a Hydrojet Shield

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Authors

HJHao JiaHFHao FengYWYihan Wang

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Overview

Numerical analysis reveals optimized flow strategies in slurry feeding systems for hydrojet shield machines, indicating improved excavation efficiency.

Key Points

  • This research aims to analyze flow characteristics in hydrojet shield machines and propose new evaluation criteria for slurry transport.
  • Conducted computational fluid dynamics analysis of a hydraulic shield machine.
  • Proposed Particle Lifting Coefficient (L) and Regional Improvement Ratio (I) as evaluation metrics.
  • Developed three flow distribution strategies (FC1, FC2, FC3) based on varying scouring flow proportions.
  • FC3 strategy significantly increased Particle Lifting Coefficient (L) and Regional Improvement Ratio (I).
  • Optimized flow strategies enhanced upward flow and prevented accumulation of rock and soil debris.
  • Integration of real-time monitoring with flow strategies and cutterhead speed adjustments was emphasized.

Cite This Study

Jia et al. (2026) studied this question.

synapsesocial.com/papers/69df2b49e4eeef8a2a6b03fahttps://doi.org/10.3390/fluids11040098
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