This paper introduces a kind of single stack drainage system-CHT special single stack drainage system,and explains the basic princi-ple,benefit analysis,applicable scope,construction technology and other aspects. Thus,CHT special single stack drainage system mentioned in this paper application in engineering.%介绍了特殊单立管排水系统中的一种常见类型———CHT旋流加强型特殊单立管排水系统,对其基本原理、效益分析、施工工艺、适用范围等方面进行了阐述,使旋流加强特殊单立管系统在工程中能够得到推广应用。
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