【摘要】 管道的非开挖修理可分为点状修理和整体修理两种。从总体上看,点状修理的质量不如整体修理,但由于其设备简单,造价较低,在目前我国管道维修经费普遍不足的情况下,仍然有很大的应用价值。介绍了排水管道点状修理的方法:嵌补法、注浆法、套环法、局部涂层法,并进一步分析了各种方法的优缺点及其在国内外的应用情况。更多还原

【Abstract】 Sewer pipeline could be serviced by non-dig measures of integral or spot ways. Spot repair required only simple instruments and low cost, might be usable in case when the budget is insufficient, although its low quality. In this paper some common manipulations of so-called point service of sewer line such as embed mending, mortar injection, sleeve local lining and local smear etc. are presented. Also the relative merits and recent applications of these manipulations are described as well.更多还原