摘要
基于气泡混合轻质土的石拱桥拱背加固技术可有效解决在原石拱桥缺少设计图纸和基础资料,其原设计荷载等级不详,在升级改造中需要提高设计荷载等级,原桥下部基础承载力受限情况下的实腹式石拱桥的加固利用问题。
Reinforcing technology of stone arch bridge extrados based on lightweight soil mixed by air bladder can resolve follow problems ： running short of plan and geologic data, unknowing of design load, needing improve the load in the reconstruction, carrying capacity of the infrastructure of original bridge being limited.
关键词
气泡混合轻质土
石拱桥
加固
基础承载力受限
lightweight soil mixed by air bladder
stone arch bridge
reinforce
carrying capacity be limited
