水平旋喷桩在隧道超前支护中的应用  

Application of Horizontal Jet Grouting Pile in Tunnel Pre-Reinforcement

作　　者：杨转运[1] 

机构地区：[1]四川建筑职业技术学院交通与市政工程系,四川德阳618000

出　　处：《交通科技与经济》2014年第3期119-121,共3页Technology & Economy in Areas of Communications

摘　　要：隧道施工中,采用水平旋喷桩超前支护技术具有较强的适应性和可操作性,能够提高风积砂地区公路隧道围岩的稳定性和地基承载力。对风积砂地层地质条件下的旋喷注浆加固作用机理、水平旋喷支护施工工艺流程和操作工序进行详细讨论,指出施工中的注意事项,为同类工程提供借鉴。In the process of tunnel construction, pre-reinforcement technique by horizontal jet grouting pile is highly adaptable and operable, which improves the rock stability and foundation bearing capacity of highway tunnels in aeolian sand area. This paper discusses the reinforcement mechanism of rotary jet grouting under geological condition of aeolian sand stratum and constructing procedure of horizontal jet grouting reinforcement. Matters needing attention in construction are pointed out, providing reference for similar projects.

关 键 词：水平旋喷桩 风积砂地层 公路隧道 超前支护 

分 类 号：TU942[建筑科学—建筑技术科学] U455.7[建筑科学—桥梁与隧道工程]