电力勘测设计
電力勘測設計
전력감측설계
ELECTRIC POWER SURVEY
2014年
5期
29-34
,共6页
黄河%游荡型河段%大跨越%主槽范围
黃河%遊盪型河段%大跨越%主槽範圍
황하%유탕형하단%대과월%주조범위
the Yellow River%wandering reaches%large crossing%the main channel span
特高压线路建设经常需要跨越游荡型河流，往往出现河中立塔情形。此时，主槽范围的合理确定至关重要，因其直接影响跨河塔位的冲刷深度，进而影响线路安全和工程造价。本文以哈密～郑州±800kV特高压直流输电线路黄河大跨越工程为例，对游荡型河流主槽范围的确定方法进行了相关分析总结，供同类工程参考。
特高壓線路建設經常需要跨越遊盪型河流，往往齣現河中立塔情形。此時，主槽範圍的閤理確定至關重要，因其直接影響跨河塔位的遲刷深度，進而影響線路安全和工程造價。本文以哈密～鄭州±800kV特高壓直流輸電線路黃河大跨越工程為例，對遊盪型河流主槽範圍的確定方法進行瞭相關分析總結，供同類工程參攷。
특고압선로건설경상수요과월유탕형하류，왕왕출현하중립탑정형。차시，주조범위적합리학정지관중요，인기직접영향과하탑위적충쇄심도，진이영향선로안전화공정조개。본문이합밀～정주±800kV특고압직류수전선로황하대과월공정위례，대유탕형하류주조범위적학정방법진행료상관분석총결，공동류공정삼고。
The UHV transmission lines usually need to cross the wandering reaches, which frequently lead to some line towers been placed in the riverbed. Then, reasonably ascertaining the span of the main channel becomes of great important, for which directly influences the scouring depth and then the security and price of the project. Taking the Hami~Zhengzhou ±800kV UHV transmission line large crossing project as a example, some methods of determination the main channel span in wandering reaches have been analyzed and included, which can be referenced for some similar projects.
