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本文根据对陆良县麦子河水库输水涵洞开闸放水时,引起的闸门各部和输水涵洞附近坝体上砂土层振动的实际观测,分析了开闸放水时引起的振动,对闸门各部的影响,特别是坝体上砂土层的振动,是否会导致砂土的液化,影响坝体的稳定,危害坝体的安全。松散的砂土、饱和、振动是发生砂土液化的三大要素,本文在假定坝体上的砂土层是松散的和饱和的前提下,只从振动的角度分析放水时引起的振动会不会导致砂士层的液化。目前坝体上砂土层的流失,不是由于振动导致砂土的液化造成的。
Based on the actual observation on the vibration of the sand layer on the dam body near the gate and on the culvert near the culvert caused by the release of water conveyance culverts in the Maizihe reservoir of Luliang County, the vibration caused by the discharge of the sluice gate was analyzed. , Especially the vibration of sand layer on the dam, will lead to the liquefaction of sand, affect the stability of the dam, endanger the safety of the dam. Loose sand, saturation and vibration are the three major factors that cause sand liquefaction. Based on the assumption that the sand and soil layers on the dam are loose and saturated, the vibration caused by the water release will be analyzed only from the perspective of vibration Will lead to sand layer liquefaction. At present, the loss of sand layer on the dam body is not caused by the liquefaction of sand caused by vibration.