摘要
G22青兰高速公路是贯穿中国东西部公路运输大通道,雷家角至西峰段地处湿陷性黄土地带,加之重载交通服役已达9年,局部路段路基沉陷较为严重。根据现场调查并结合地质钻探结果,经过深入研究分析,技术方案比选后,选择干拌水泥碎石桩和高压旋喷桩处治方案,并及时组织实施。
The G22 Qinglan Expressway is a major transportation corridor that runs through the eastern and western parts of China.The section from Leijiajiao to Xifeng is located in a collapsible loess area,and in addition,it has been in service for 9 years due to heavy traffic.The roadbed settlement of some sections is relatively serious.Based on on-site investigation and combined with geological drilling results,after in-depth research and analysis,technical solutions were compared and selected,and dry mixed cement gravel piles and high-pressure rotary jet grouting piles were selected for treatment,and timely implementation was organized.
作者
韩毓
Han Yu(Gansu Qingyang Highway Development Center,Qingyang,China)
出处
《科学技术创新》
2023年第16期109-112,共4页
Scientific and Technological Innovation
关键词
湿陷性黄土
路基沉陷
干拌水泥碎石桩
高压旋喷桩
collapsible loess
roadbed settlement
dry mixed cement crushed stone pile
high-pressure rotary jet grouting pile
