ZHANGBo,YANGShaozhan,ZUOXu,et al.Critical Monitoring Technologies for Large?diameter Raw Water Pipe Jacking in Extremely Hard Rock[J].China Water & Wastewater,2026,42(10):9-14.
超大断面原水管极硬岩顶管工程监测关键技术
- Title:
- Critical Monitoring Technologies for Large?diameter Raw Water Pipe Jacking in Extremely Hard Rock
- Keywords:
- pipe jacking; monitoring technologies; extremely hard rock; sensor
- 摘要:
- 随着国家地下空间开发战略的推进，顶管法凭借其非开挖优势，在极硬岩地层工程中的应用日益广泛。然而，施工过程中频发卡管与偏离设计轴线等事故，这导致顶管的施工安全与效率高度依赖精准的监测技术。通过聚焦极硬岩钢制顶管施工中的监测关键技术，系统分析了软硬不均、全断面硬岩等复杂地层条件对传感器性能的挑战，包括高频振动干扰、岩屑污染及密封失效等问题。结合理论分析与工程案例，提出了传感器优化设计与布设策略，并在实际工程中验证了振弦式应变计、土压力计及孔隙水压力计在多参数协同监测中的有效性。结果表明，实时监测数据可动态优化顶进参数，提高顶进效率，显著降低管节损伤风险及对地层的扰动。本文验证了极硬岩顶管施工中监测系统的重要作用，为顶管工程的安全顺利实施与理论发展提供了保障。
- Abstract:
- With the advancement of national strategies for underground space development, the pipe jacking method is increasingly applied in extremely hard rock formations due to its trenchless advantages. However, incidents such as pipe jamming and deviation from the design axis frequently occur during construction. The safety and efficiency of pipe jacking critically rely on precise monitoring technologies. This paper focuses on key monitoring technologies for steel pipe jacking in extremely hard rock. It systematically analyzes the challenges posed by complex geological conditions, such as interbedded hard and soft layers and full-face hard rock, to sensor performance. These challenges include high-frequency vibration interference, rock cutting contamination, and sealing failures. Combining theoretical analysis with engineering case studies, the paper proposes optimized sensor design and deployment strategies. The effectiveness of vibrating wire strain gauges, earth pressure cells, and pore water pressure transducers in multi-parameter collaborative monitoring is validated through actual projects. The research results demonstrate that real-time monitoring data enables the dynamic optimization of jacking parameters, improving jacking efficiency while significantly reducing the risk of pipe segment damage and disturbance to the surrounding strata. This paper verifies the crucial role of monitoring systems in pipe jacking construction within extremely hard rock, providing an important safeguard for the safe and smooth implementation of pipe jacking projects and the advancement of relevant theories.
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