高压旋喷桩在路基加固中的应用  

Application of High Pressure Jet Grouting Pile in Roadbed Treatment

作　　者：邓合玉 DENG He-yu(China Gezhouba Group Road and Bridge Engineering Co.,Ltd.,Yichang 443000,China)

机构地区：[1]中国葛洲坝集团路桥工程有限公司,宜昌443000

出　　处：《价值工程》2021年第3期141-142,共2页Value Engineering

摘　　要：改革开放以来我国公路建设蓬勃发展,但道路使用中也会面临各种问题,给人们出行安全带来威胁。本文根据高速公路施工实例分析了高压旋喷桩在路基加固中的应用,发现高压旋喷桩在路基处理中引孔间易形成连通体,导致施工成本增加;由于相邻引孔间形成连通体,导致高压旋喷桩的注浆压力释放,形成的桩体有效直径减小,致使高压旋喷桩对路基加固的作用减弱。本文通过高压旋喷桩在路基加固中的应用研究将对路基病害治理起到现实的指导意义。Since the reform and opening up,China's road construction has developed vigorously,but road use will also face various problems,which will threaten people's travel safety.This paper analyzes the application of high-pressure jet grouting piles in roadbed reinforcement based on highway construction examples,and finds that high-pressure jet grouting piles are easy to form connected bodies between the lead holes in the roadbed treatment,resulting in an increase in construction costs;due to the formation of connected bodies between adjacent lead holes,resulting in the release of the grouting pressure of the high-pressure jet grouting pile,the effective diameter of the formed pile body is reduced,and the effect of the high-pressure jet grouting pile on the roadbed reinforcement is weakened.In this paper,the application of high-pressure jet grouting piles in roadbed reinforcement will play a practical guiding significance for roadbed disease management.

关 键 词：高压旋喷桩 路基 连通体 注浆压力 

分 类 号：U418.52[交通运输工程—道路与铁道工程]