交通节能与环保2025，Vol.21Issue(2)：23-28,6.DOI:10.3969/j.issn.1673-6478.2025.02.005
粉质黏土地层盾构渣土制备同步注浆技术研究
Research on Synchronous Grouting Technology for Shield Tunneling Slag Preparation in Powdery Clay Soil Layer
魏义山 1李龙 1李高 1刘霆宇2
作者信息
- 1. 中交第三航务工程局有限公司南京分公司,江苏 南京 210011
- 2. 中南大学土木工程学院,湖南 长沙 410075
- 折叠
摘要
Abstract
This paper proposes an experimental approach for reusing shield muck from silty clay layers through synchronous grouting,using slag powder as the primary solidifying material.The response surface methodology was employed to analyze the impact of four factors,namely muck moisture content,foam injection ratio,slag powder content,sand content,and their interactions,on response variables including consistency,2-hour permeability rate,and 3-day compressive strength.The experiment results revealed the following order of strength of single-factor impacts on grout consistency:slag powder content>muck moisture content>sand content>foam injection ratio.For the 2-hour bleeding rate and 3-day compressive strength,the order of impact strength was as follows:slag powder content>muck moisture content>foam injection ratio>sand content.The interaction between slag powder content and sand content had the most significant impact on grout consistency and the 2-hour bleeding rate,while the interaction between muck moisture content and foam injection ratio had the most significant impact on the grout's 3-day compressive strength.It also allows for the optimization of grout composition.The novel grouting material prepared using the optimal composition can meet the requirements for synchronous grouting in shield tunnel construction within silty clay formations.关键词
粉质黏土地层/盾构渣土/响应面法/同步注浆Key words
silty clay layer/shield muck/response surface method/synchronous grouting分类
交通运输引用本文复制引用
魏义山,李龙,李高,刘霆宇..粉质黏土地层盾构渣土制备同步注浆技术研究[J].交通节能与环保,2025,21(2):23-28,6.
