【摘要】 介绍了在高速公路不中断交通的情况下 ,地道桥顶推施工穿越路基时所采用的管棚支护加固路基技术。工程实践表明 ,该技术有效地抑制了高速公路路面的沉降和路基开挖时的塌陷 ,保证了高速路的行车安全更多还原

【Abstract】 This paper introduces a reinforce roadbed technology with pipe shed when tunnel bridge pass through roadbed using incremental launching method and highway traffic not be discontinued. The engineering practice indicates that this technology effectively restricts subside of highway surface and road collapses ,as well as ensures safety in driving on highway.更多还原