摘要
某工程K0+320-K0+550段箱涵长230m,位于运营的高速公路互通立交桥下,为避免箱涵基坑开挖对立交桥桥墩的影响,基坑施工中采用振动较小的机械,加强监测,确保承台不发生偏移,加固箱涵地基,防止地下水突涌,桥墩周边土方对称开挖,及时封闭基坑等措施,确保运营高速公路桥梁的安全。
The box culvert in the section K0+320~K0+550 of a project is 230m long and is,located under an operating expressway interchange.In order to avoid the impact of box culvert foundation pit excavation on the overpass piers,the foundation pit construction uses machinery with less vibration.Strengthen monitoring to ensure that the platform does not deviate,strengthen the box culvert foundation,prevent groundwater inrush,symmetrical excavation of the earth around the bridge piers,and timely closure of foundation pits to ensure the safety of operating highway bridges.
作者
徐鑫
谢国华
XU Xin;XIE Guo-hua(CCCC Guangzhou Dredgng Co.,Ltd.,510000,Guangzhou,China)
出处
《建筑技术》
2021年第3期373-375,共3页
Architecture Technology
关键词
基坑开挖
桥梁
保护措施
foundation pit excavation
bridge
protection measures
