结构工程师
結構工程師
결구공정사
STRUCTURAL ENGINEERS
2014年
5期
130-138
,共9页
桥墩基础%局部冲刷%冲刷防护%主动防护%被动防护
橋墩基礎%跼部遲刷%遲刷防護%主動防護%被動防護
교돈기출%국부충쇄%충쇄방호%주동방호%피동방호
bridge pier%local scour%countermeasures for scour%active method%passive method
作为桥梁工程重要的减灾措施之一,桥墩基础的局部冲刷防护受到国内外越来越多的关注。按照冲刷防护的机理,可将其分为主动防护和被动防护两大类。系统总结了工程中各类常用冲刷防护方式的特点,主要包括墩前牺牲桩、护圈、抛石、下游石板、桥墩开缝、扩大墩基础以及四面体透水框架群等防护技术措施。重点对比分析了这些方法的防护原理、防护效果及其优缺点。并结合具体工程案例,对其所采用的冲刷防护措施和工程特点进行了简要的评述,分析探讨了进一步科研工作的方向。
作為橋樑工程重要的減災措施之一,橋墩基礎的跼部遲刷防護受到國內外越來越多的關註。按照遲刷防護的機理,可將其分為主動防護和被動防護兩大類。繫統總結瞭工程中各類常用遲刷防護方式的特點,主要包括墩前犧牲樁、護圈、拋石、下遊石闆、橋墩開縫、擴大墩基礎以及四麵體透水框架群等防護技術措施。重點對比分析瞭這些方法的防護原理、防護效果及其優缺點。併結閤具體工程案例,對其所採用的遲刷防護措施和工程特點進行瞭簡要的評述,分析探討瞭進一步科研工作的方嚮。
작위교량공정중요적감재조시지일,교돈기출적국부충쇄방호수도국내외월래월다적관주。안조충쇄방호적궤리,가장기분위주동방호화피동방호량대류。계통총결료공정중각류상용충쇄방호방식적특점,주요포괄돈전희생장、호권、포석、하유석판、교돈개봉、확대돈기출이급사면체투수광가군등방호기술조시。중점대비분석료저사방법적방호원리、방호효과급기우결점。병결합구체공정안례,대기소채용적충쇄방호조시화공정특점진행료간요적평술,분석탐토료진일보과연공작적방향。
As an important disaster alleviation method in bridge engineering , local scours of bridge pier have attracted widel attention by domestic and overseas researchers .Based on the principle of bridge scour , coun-termeasures for bridge scour were divided into two typical sorts: active countermeasures and passive counter-measures.Most efficacious local scour protections both in laboratories and projects are summarized in this pa -per.Those measures include sacrificial piles , collars, riprap protection, downstream bed sills, slots, founda-tion enlargement , tetrahedron permeable frame protection and some others .The basic principal , advantages and disadvantages of these countermeasures are provided in the present paper .Furthermore , some typical pro-jects are introduced and the countermeasures for bridge piers are also reviewed briefly .The directions of fur-ther research works are also discussed .