【摘要】 在我国的西北和东北,尤其在青藏高原地区,冻土广布。动土的存在,使得土壤的不稳定性增加,给我国的路桥交通的建设和养护带来了不少麻烦,严重威胁着路桥的稳定性。在凭借相关施工案例,参考大量文献的基础上,总结介绍了冻土对道路桥涵的危害、动土的防治措施,减少后期养护的工程量。更多还原

【Abstract】 In China’s northwest and northeast,especially in the Tibetan Plateau,widespread permafrost.Groundbreaking presence,making the soil increased instability to the country’s road and bridge construction and maintenance of transportation has brought a lot of trouble,a serious threat to the stability of the bridge.In this paper,by virtue of the relevant construction cases,on the basis of extensive literature references,presents a summary of permafrost hazards of road bridges and culverts,ground-breaking prevention measures to reduce the amount of post maintenance works.更多还原