水运工程
水運工程
수운공정
PORT & WATERWAY ENGINEERING
2014年
1期
117-122
,共6页
透水框架群%航道整治%水力特性
透水框架群%航道整治%水力特性
투수광가군%항도정치%수력특성
penetrating frame groups%waterway regulation%hydraulic characteristics
透水框架群在长江航道整治工程中具有减速、防冲、促淤的特点,在三峡工程蓄水运用后清水下泄促淤有限的条件下,框架群在护滩边缘的防护效果明显,但对其作用机理,特别是透水框架群在整治工程中的水力特性还认识不足。通过水槽试验研究了透水框架群的减速率与摆放高度、孔隙率等因素的相互关系,并对透水框架群内部和尾部的减速效果进行了深入分析,研究结果可为规范护滩边缘结构的设计提供技术支撑。
透水框架群在長江航道整治工程中具有減速、防遲、促淤的特點,在三峽工程蓄水運用後清水下洩促淤有限的條件下,框架群在護灘邊緣的防護效果明顯,但對其作用機理,特彆是透水框架群在整治工程中的水力特性還認識不足。通過水槽試驗研究瞭透水框架群的減速率與襬放高度、孔隙率等因素的相互關繫,併對透水框架群內部和尾部的減速效果進行瞭深入分析,研究結果可為規範護灘邊緣結構的設計提供技術支撐。
투수광가군재장강항도정치공정중구유감속、방충、촉어적특점,재삼협공정축수운용후청수하설촉어유한적조건하,광가군재호탄변연적방호효과명현,단대기작용궤리,특별시투수광가군재정치공정중적수력특성환인식불족。통과수조시험연구료투수광가군적감속솔여파방고도、공극솔등인소적상호관계,병대투수광가군내부화미부적감속효과진행료심입분석,연구결과가위규범호탄변연결구적설계제공기술지탱。
Penetrating frame groups in the Yangtze River renovation work is characterized by deceleration, erosion protection and deposit-promoting. Under the limited depositing-promoting condition with the clean water in the operation of water conservancy in the Three Gorges Project, the protective effect of frame groups in beach protection edge is significant. But people are still lack of the knowledge in the mechanism of action of the penetrating frame groups, especially in the hydraulic characteristics of penetrating frame groups in the renovation project. This paper studies the relationship between the deceleration rate of the penetrating frame groups and display height, porosity and other factors via flume experiments, and analyzes the decelerating effects of the inside and tail parts of the penetrating frame groups. The results can provide technical support to the structural design of beach protection edge.