详情

原文传递 Crack Forces Dewatering Of Pickwick Locks Main Chamber

题名：	Crack Forces Dewatering Of Pickwick Locks Main Chamber
正文语种：	eng
作者：	SHELLEY BYRNE
摘要：	The main chamber at Pickwick Locks and Dam, Tennessee River Mile 206.7, is closed because of a crack in the bottom of a gate that is allowing water to flow through it. A maintenance crew doing an inspection in April noticed a loud humming and significant vibration during operation of the lower miter gates, said Jason N. Johnson, chief of the maintenance section of the Nashville Engineer District's Technical Support Branch. Because of a previous issue, it was initially assumed the noise and vibration were due to leakage of water through the rubber seal at the bottom of the gate leaves. A dive inspection was scheduled for May to verify the assumption or to uncover the cause. On May 25, the diver inspection found damage to the bottom gate pan of the land leaf of the lower miter gate, Johnson said. The repair will require dewatering the 1,000- by 110-foot lock chamber to inspect the damaged section in the dry and determine how best to repair it, he said. Meanwhile, traffic is being passed in the 600- by 110-foot auxiliary lock. Randy King, lock and dam equipment mechanic supervisor for the Nashville Engineer District, said the crack in the gate pan is 6 to 8 feet long and 1 inch wide in one section.
出版年：	2022
期刊名称：	The Waterways Jouranl
卷：	136
期：	12
页码：	28-28