地下工程变形缝防水是至关重要的,为此,工程界采用了许多防水措施,设内防水止水装置就是其中的一种。本文首先回顾了多年来在内防水止水装置方面作的各种研究与改进,分析了它们的各种缺陷;然后重点介绍了目前正在设计与施工的一种新型内装可卸式止水装置,提示了它的原理与特点,剖析了它各组成部分的功效,强调了防水密封的关键,从而反映出这种新防水装置的合理性,可靠性。 The waterproofing of the deformation joints of underground works is of vital importance. For this reason, many waterproofing measures have been adopted in the engineering sector. The installation of waterproof waterproof devices is one of them. This article first reviewed various researches and improvements made in water-repellent water-stopping devices for many years, analyzed their various defects, and then focused on a new type of built-in detachable water-stopping device currently being designed and constructed. It prompts its principle and characteristics, analyzes the efficacy of its components, and emphasizes the key of waterproof seal, thus reflecting the rationality and reliability of this new waterproof device.