摘要
为改善强降雨区传统桥梁排水设施设计型式单一、间距设计保守及排水能力不足等缺点,以广东省湛江市环城高速南三岛大桥(坡头至南三岛段)工程中的夹流大桥为例,提出了一种新型的以U型槽为主的防排水设计型式,计算并验证了U型槽的排水能力,分析了U型槽的设计及施工工艺。结果表明,夹流大桥桥面所需排泄的最大设计径流量Q为0.014573 m^(3)/s,U形槽的泄水量为0.015358 m^(3)/s,U型槽排水系统的排水能力满足桥面排水要求,该排水设计型式可在强降雨区推广应用。
In order to improve the shortcomings of single design type,conservative spacing design and insufficient drainage capacity of traditional bridge drainage facilities in strong rainfall area,this paper relies on the Nansandao Bridge of Huancheng Expressway in Zhanjiang City,Guangdong Province,taking the current clamping bridge as an example,a new type of waterproofing and drainage design type based on U-shaped trough is put forward,the drainage capacity of U-shaped groove is calculated and verified,and the design and construction technology of U-shaped groove are analyzed.The results show that the maximum design runoff Q of the bridge deck is 0.014573 m^(3)/s,and the discharge capacity of the U-shaped trough is 0.015358 m^(3)/s.The drainage capacity of the U-shaped trough drainage system meets the requirements of the bridge deck drainage.The drainage design type can be popularized and applied in strong rainfall areas.
作者
田强春
冯忠居
陈杰
全超文
吴登睿
武敏
陈慧芸
TIAN Qiang-chun;FENG Zhong-ju;CHEN Jie;QUAN Chao-wen;WU Deng-rui;WU Min;CHEN Hui-yun(Guangdong Nanyue Transportation Investment Construction Co.,Ltd.,Guangzhou,Guangdong 510623,China;Highway College of Chang'an University,Xi'an,Shaanxi 710064,China)
出处
《黑龙江交通科技》
2022年第2期35-38,共4页
Communications Science and Technology Heilongjiang
关键词
桥梁工程
强降雨区
U型槽
排水能力计算
防排水设计
bridge engineering
heavy rainfall area
U-shaped trough
drainage capacity calculation
waterproofing and drainage design
