水库坝下输水涵管,又名涵洞,是进行泄流和灌溉的通道,为水库工程重要建筑物之一。涵管一旦漏水,轻则库水蓄不满,重则造成垮坝。目前,各地绝大多数土石坝工程都是建国初期和一九五八年“大跃进”时期兴建的。由于缺乏前期工作、建设粗糙、年久失修、工程老化、管理不善等原因,不少坝下涵管出现漏水现象,不同程度地危及着大坝安全。为了处理涵管漏水问题,多年来湖南各地探索了许多办法。过去出现涵管漏水时,曾使用 Water culvert under the dam, also known as culvert, is a channel for drainage and irrigation and one of the important buildings in reservoir engineering. Culvert once leaking, ranging from the water reservoir dissatisfaction, but also caused the collapse of heavy dam. At present, the vast majority of earth-rock dam projects are built during the early days of 1949 and the Great Leap Forward of 1958. Due to the lack of preliminary work, rough construction, long-term disrepair, project aging, poor management and other reasons, many of the culverts under water leakage, to varying degrees, endanger the safety of the dam. In order to deal with the leakage of culverts, many ways have been explored in various parts of Hunan Province over the years. Used when there was a leak of culvert in the past