袖阀管跟踪注浆技术在软土地层轨道明挖深基坑控制中的应用

Application of Sleeve Valve Tube Tracking Grouting Technology in Soft Ground Controlling in Open Excavation Deep Foundation Excavation

软土分布城市地区,轨道交通明挖深基坑施工环境效应控制是工程施工的一项重要工作。依托温州市域铁路S1线机场段明挖深基坑工程,采用袖阀管注浆技术进行动力中心沉降控制。通过袖阀管注浆方案设计、施工工艺、浆液控制等的研究与工程实施,达到了很好的建筑物沉降控制效果。可以作为类似工程的借鉴。

In urban areas where soft soil is distributed,it is an important work to control the environmental effects in the construction of open excavation deep foundation excavation of rail transit.Based on the open excavation deep foundation excavation of the S1 section of Wenzhou Railway,this paper adopts the sleeve valve grouting technology to control the settlement of the power center.Through the research and engineering implementation of sleeve valve pipe grouting scheme design,construction technology,slurry control and so on,good building settlement control effect has been achieved.It can be used as a reference for similar projects.