[1]查丽娟,马智永.考虑水泥-水玻璃双液浆黏度时空效应的隧道预注浆研究[J].西安建筑科技大学学报(自然科学版),2021,53(04):594-601.[doi:10.15986/j.1006-7930.2021.04.017]
　ZHA Lijuan,MA Zhiyong.Study on pre-grouting of tunnel considering time and space effect of viscosity of cement-water glass slurry[J].J. Xi’an Univ. of Arch. & Tech.(Natural Science Edition),2021,53(04):594-601.[doi:10.15986/j.1006-7930.2021.04.017]
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考虑水泥-水玻璃双液浆黏度时空效应的隧道预注浆研究()
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西安建筑科技大学学报（自然科学版）[ISSN:1006-7930/CN:61-1295/TU]

卷:
53
期数:
2021年04期
页码:
594-601
栏目:
出版日期:
2021-08-28

文章信息/Info

Title:
Study on pre-grouting of tunnel considering time and space effect of viscosity of cement-water glass slurry
文章编号:
1006-7930(2021)04-0594-08
作者:
查丽娟1; 马智永2
(1.河南建筑职业技术学院 工程管理系,河南 郑州 450001; 2.郑州大学 土木工程学院,河南 郑州 450001)
Author(s):
ZHA Lijuan1; MA Zhiyong2
(1.Department of Engineering Management,Henan Technical College of Construction,Zhengzhou 450001,China; 2.School of Civil Engineering,Zhengzhou University,Zhengzhou 450001,China)
关键词:
C-S双液浆;  黏度时空效应;  渗透注浆;  宾汉姆流体;  均匀管组
Keywords:
C-S mixed grout;  space-time effect of viscosity;  penetration grouting;  Bingham fluid;  uniform capillary group
分类号:
TU431
DOI:
10.15986/j.1006-7930.2021.04.017
文献标志码:
A
摘要:
水泥-水玻璃双液浆作为典型的速凝型浆液开始在隧道超前注浆施工中得到广泛应用,但目前对于双液浆渗透扩散机理的研究较少,注浆压力、浆液扩散半径以及注浆量等关键施工参数的确定多以经验为主.本文考虑水泥-水玻璃双液浆为黏度时变性的宾汉姆流体,基于双液浆的流变方程,同时考虑双液浆的黏度时效性和黏度空间效应,推导得到了表征双液浆黏度增长时间Tu与浆液扩散半径l之间关系的表达式.根据此关系式并结合平衡方程和均匀毛管组理论,推导得到了考虑双液浆黏度时空效应的柱形渗透注浆浆液扩散半径l和浆液压力P的理论计算公式,并分析了公式中相关参数的确定方法与公式的适用范围.
Abstract:
As a typical quick setting grout,the cement-sodium silicate mixed grout has been widely used in the advance grouting construction of the tunnel. But at present,there are few studies on the mechanism of the permeation and diffusion of the mixed grout,and the determination of the key construction parameters such as the grouting pressure,the grout diffusion radius and the grout amount is mostly based on experience. In this paper,in consideration of cement-sodium silicate mixed grout as Bingham fluid with time-dependent behavior of viscosity,the rheological equation based on mixed grout,and also the viscosity time-dependency and viscosity space effect of mixed grout,the expression representing the relationship between the viscosity growth time Tu and the grout diffusion radius l is derived. According to this relation expression and by means of the equilibrium equation and the theory of uniform capillary group,the theoretical formula for calculating the diffusion radius l1 and grout pressure P of column penetration grouting considering the viscosity space-time effect of mixed grout are derived,and the determination method of relevant parameters in the formula and the application scope of the formula are also analyzed.

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(编辑 桂智刚)

备注/Memo

备注/Memo:
收稿日期:2020-12-25 修改稿日期:2021-07-05
基金项目:河南省科技厅项目《河南省建筑施工污染防治对策研究》(项目编号:148)
第一作者:查丽娟(1982-),女,硕士,讲师,从事工程结构、工程管理科学研究.E-mail:chalijuan450001@163.com
通信作者:马智永(1970-),男,硕士,从事工程结构、工程管理科学研究.E-mail:chalijuan450001@163.com
更新日期/Last Update: 2021-08-28