【摘要】 针对F型承插式顶管管节接头处的橡胶止水密封圈，开展止水性能试验，设计可以调节密封圈压缩量的止水模型试验装置，开展不同内外水压、单双道密封圈、橡胶圈压缩量和张开角情况下的密封圈止水性能试验研究.结果表明：相同压缩量下双道密封圈可以有效提高止水能力；压缩量较小情况下，止水圈的内水压止水能力优于外水压；张开角的增大会显著降低止水圈的止水能力，实际工程中应严格控制管节之间的张开角大小.更多还原

【Abstract】 The objective of this study was to evaluate the water sealing performance of a rubber sealing ring at the joint of an F-type cap and an insert pipe.A sealing model test device, which allows for the adjustment of the compression amount of the sealing ring, was designed.The sealing performance of the sealing ring was evaluated under a range of internal and external water pressure conditions, including single and double channel sealing rings, varying compression amounts of the rubber ring with different opening angles.The findings indicate that the double sealing ring is an effective means of enhancing the water sealing capacity, irrespective of the compression amount.When the compression amount is minimal, the water sealing capacity of the inner water pressure is superior to that of the outer water pressure.An increase in the opening angle will result in a notable reduction in the sealing capacity of the sealing ring.Therefore, it is essential to exercise caution and strictly control the opening angle between pipe joints in practical engineering applications.The findings of this research may serve as a reference point for the water sealing of pipe joints in practical engineering applications.更多还原