摘要
G22青兰高速公路平定段、G30连霍高速宝天(天水过境)段及G70福银高速凤长段通车运营多年,部分路段发生较为严重的路基沉降病害。经调查研究,最终采用高压旋喷桩对沉降严重路段进行加固,加固处理完成一段时间后,再次对路基进行沉降检测,其沉降值满足要求,证明高压旋喷桩对路基沉降处治效果明显。
The Pingding section of G22 Qinglan Expressway,the Baotian(Tianshui Transit)section of G30 Lianhuo Expressway,and the Fengchang section of G70 Fuyin Expressway have been in operation for many years,and some sections have experienced serious roadbed settlement diseases.After investigation and research,high-pressure rotary jet grouting piles were finally used to reinforce severely settled road sections.After completing the reinforcement treatment for a period of time,the settlement of the roadbed was tested again,and the settlement value met the requirements,proving that high-pressure rotary jet grouting piles have a significant effect on roadbed settlement treatment.
作者
靳军
Jin Jun(Pingliang Highway Development Center,Pingliang,China)
出处
《科学技术创新》
2024年第10期130-133,共4页
Scientific and Technological Innovation
关键词
高压旋喷桩
路基沉降
沉降机理
喷浆压力
high-pressure rotary jet grouting pile
roadbed settlement
settlement mechanism
spray pressure
