摘要
高压旋喷桩是一种新型的地基加固技术,具有施工简便快捷、成本低廉、加固效果好等特点,在滑坡体治理、边坡稳定性防护等工程施工中被广泛应用。在滑坡治理中经常采用抗滑桩等支挡工程进行加固,效果明显,但抗滑桩在穿越淤泥质等软弱土层和地下水丰富等复杂岩层施工时易发生涌泥、突水情况,导致机械或者人工成孔困难,无法确保施工时的安全与质量。通过采用高压旋喷桩配合加固施工,不仅可以对抗滑桩周围土体加固,增加周围土体的抗剪切能力,并且旋喷桩桩位相互咬合可形成防水帷幕,起到止水防渗的作用,有效保证施工安全与施工质量,加快施工进度,确保项目的顺利实施。
High-pressure jet grouting pile is a new type of foundation reinforcement technology.It is widely used in engineering construction such as landslide treatment and slope stability protection due to its characteristics of simple and quick construction,low cost,and good reinforcement effect.In landslide treatment,retaining projects such as anti-slip piles are often used for reinforcement,and the effect is remarkable.However,when anti-slip piles are constructed through complex rock layers such as soft soil layers like mucky soil and areas with abundant groundwater,situations such as mud gushing and water inrush are likely to occur,making it difficult for mechanical or manual hole formation and unable to ensure construction safety and quality.By using high-pressure jet grouting piles for combined reinforcement construction,not only can the soil around the anti-slip piles be reinforced to increase the shear resistance of the surrounding soil,but also the overlapping positions of the jet grouting piles can form a waterproof curtain,playing the role of water stopping and seepage prevention.This effectively ensures construction safety and quality,accelerates the construction progress,and ensures the smooth implementation of the project.
作者
冯满军
Feng Manjun(China Railway 20th Bureau Group Municipal Engineering Co.,Ltd.,Lanzhou,Gansu 730000)
出处
《现代工程科技》
2025年第9期21-24,共4页
Modern Engineering Technology
关键词
高压旋喷桩
不良地质
抗滑桩
加固
high-pressure jet grouting pile
adverse geology
anti-slip pile
reinforcement
