现有传统处理工程泥浆的方法存在耗时、耗能、昂贵等缺点,而负压排水法具有绿色节能、施工简单、有效提高排水速率等特点。进行了负压排水法处理工程泥浆的室内模型试验研究,对其可行性进行讨论分析。通过使用自制试验箱和负压虹吸装置进行试验,并在虹吸管内连接测压表对装置负压实时监测。试验结果表明:在排水管内径为4 mm的前提下,负压排水能长期稳定进行;负压大小、排水效率都与排水高差呈正相关,且负压排水法处理小厚度泥浆效果较好,处理大厚度泥浆效果则会稍差。用该方法处理工程泥浆高效且免动力,可运用于实际。

Traditional methods for treating engineering slurry are usually time-consuming, energy-intensive, and costly. In contrast, the negative-pressure drainage method is environmental friendly, easy to operate and efficient. Indoor model test was conducted to assess the feasibility of the negative-pressure drainage method for treating engineering mud. The test was performed in a self-developed test chamber equipped with a negative pressure siphon device, with the siphon tube connected to a pressure gauge for real-time monitoring of the negative pressure. The results indicate that stable negative pressure drainage can be achieved using a drainage pipe with a 4 mm inner diameter. Furthermore, both the negative pressure and drainage efficiency are positively correlated with the height difference of the drainage. This method proves more effective for treating mud with small thicknesses but is less effective for thicker mud. Overall, the negative-pressure drainage method is efficient and does not require external power, making it suitable for practical applications.