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(2013年8月12日)根据黑龙江干流水位持续上涨,水文部门预报黑龙江上游和结雅河来水情况,必须加强巡堤查险,并把巡堤查险人员分段分时,明晰有关规定,掌握基本内容和方法。一、五查一查管涌。堤防背水坡脚或坑塘处,是极易发生管涌的地方。现象是堤防坡脚处或坑塘里出现向外涌水、冒泡、翻沙现象。二查裂缝。注意堤坡、堤肩是否有裂缝,有平行堤线纵向缝,也有垂直堤线横向裂缝,同时注意裂缝深度和宽度是否快速扩展。三查脱坡、片堤。堤防迎水面遇水流冲淘,下面淘
(August 12, 2013) According to the continuous rise of the water level of the main stream in Heilongjiang Province, the hydrological department forecast the situation of incoming water in the upper reaches of Heilongjiang River and the Liya River. It is necessary to strengthen the inspection of dikes and to separate the inspection of dredging inspectors into sections and clarify the relevant provisions , Master the basic content and methods. One or five check a survey tube. Embankment back water slope feet or pit pond, is prone to piping place. Phenomenon is embankment slope foot hole or pit outside gushing, bubbling, overturning sand phenomenon. Second check crack. Attention should be paid to whether there is any cracks in the bank slope or embankment shoulder or not, with longitudinal embankment parallel embankment and transverse embankment transverse embankment. At the same time, pay attention to whether the depth and width of the embankment are rapidly expanding. Three check-off slope, piece embankment. Embankment meet the water flushing flow, the following Amoy