智能灌浆技术在水利工程和地基加固中起着至关重要的作用。目前在注浆过程中，注浆压力和单位注浆速率主要依赖人工调节控制，存在灌浆精度低、超压频繁等问题。研究设计了一种智能灌浆压力控制系统，集成了调压平台、智能控制单元和上位机主控中心，能够控制压力并处理实时数据，确保灌浆过程的稳定性和安全性。系统硬件包括注浆泵、分流阀、进浆流量计、压力表、回浆流量计和电动调节阀等关键组件，通过PLC与电动调节阀的结合，实时调整返浆压力，保持压力的稳定和精准控制。设计了灌浆过程数据采集及压力稳定性控制逻辑程序，灌浆压力控制采用积分滑模控制器，并对其在动态和干扰工况下的性能进行了验证，结果表明该控制器能够快速响应压力变化，适应不同的灌浆需求，提升了灌浆作业的自动化和智能化水平。详细设计了智能灌浆系统，研究了不同压力控制算法的应用效果，并在实际工程中进行了验证。研究结果表明，智能灌浆系统运行稳定，压力控制精准，为智能灌浆技术广泛应用提供了坚实基础，具有广阔的应用前景。

Intelligent grouting technology plays a critical role in hydraulic engineering and foundation reinforcement. Currently， grouting pressure and unit grouting rate are primarily adjusted manually， leading to low grouting precision and frequent overpressure incidents. This study designs an intelligent grouting pressure control system， integrating a pressure regulation platform， intelligent control unit， and upper-level master control center. The system is capable of controlling pressure and processing real-time data， ensuring the stability and safety of the grouting process. The system's hardware includes key components such as a grouting pump， diverter valve， inflow meter， pressure gauge， outflow meter， and electric control valve. By integrating a PLC with the electric control valve， real-time adjustments to the return pressure are made， ensuring stable and precise pressure control. A data acquisition and pressure stability control logic program for the grouting process are developed， and an integral sliding mode controller is applied for pressure regulation. The controller's performance under dynamic and disturbance conditions is verified， demonstrating its ability to respond quickly to pressure changes and adapt to different grouting requirements. This enhances the automation and intelligence of the grouting operation. This provides a solid foundation for the widespread application of intelligent grouting technology and offers significant potential for future use. This work presents a comprehensive design of an intelligent grouting system， explores the effects of various pressure control algorithms， and confirms the system's performance in real-world applications. The research results show that the intelligent grouting system operates stably and has precise pressure control， which provides a solid foundation for the widespread application of intelligent grouting technology and has broad application prospects.

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Research on Intelligent Grouting Pressure Control System and Control Strategy

ZHOU Zhi-gang, DING Ye, HUANG Fan, HUANG Yan-pu, XIA Jun

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China Rural Water and Hydropower ›› 2025 ›› (6) : 102-107. DOI: 10.12396/znsd.241303

Research on Intelligent Grouting Pressure Control System and Control Strategy

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Received	Accepted	Published
2024-08-19	2024-10-26	2025-06-15
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2025-06-20

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