Analysis of the Sealing Mechanism of Cement-Sodium Silicate Grout in Rock Fractures with Flowing Water
Analysis of the Sealing Mechanism of Cement-Sodium Silicate Grout in Rock Fractures with Flowing Water
复制标题
水泥水玻璃浆液流水封闭岩石裂隙机理分析
DOI：
10.3390/w12071935
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发表时间：
2020-07
期刊：
影响因子：
3.4
通讯作者：
Zhang Jianwei
中科院分区：
文献类型：
--
作者：
Zhu Guangxuan;Zhang Qingsong;Lin Xin;Liu Rentai;Zhang Lianzhen;Zhang Jianwei
水泥-水玻璃浆液（C-S浆液）是一种广泛应用于动水封堵工程的浆液，其扩散封堵机理复杂。基于大型裂隙动水注浆准三维模拟试验平台，进行了C-S浆液动水封闭性的正交试验。灌浆以不对称椭圆的形式扩散。流动水封堵过程包括三个阶段：浆液以非对称椭圆向裂隙边界扩散;浆液固化体发育;稳定固化体形成。通过注浆后裂隙排水量的减少来评价封堵效果并进行分级。根据试验数据，影响封堵效果的因素由强到弱依次为：浆液成胶时间、水流速度、浆液用量、裂隙面宽度、裂隙开度。最后得到拟合方程，为实际工程应用提供参考。
The diffusion and sealing mechanisms of cement-sodium silicate grout (C-S grout), which is widely used in flowing water sealing projects, are complicated. Based on a large-scale quasi-three-dimensional simulation test platform of fracture dynamic water grouting, an orthogonal experiment of flowing-water sealing of C-S grout was performed. The grout was shown to diffuse in the form of an asymmetric ellipse. The flowing-water sealing process consists of three stages: (1) the grout diffuses to the fracture boundary in an asymmetrical ellipse; (2) the solidified body of grout develops; (3) the stable solidified body forms. The sealing efficiency was evaluated and graded by the reduction of water drainage through the fracture after grouting. Based on the test data, the factors that affect sealing efficiency can be listed in the following order from strong to weak: grout gel time, flowing water velocity, grout take, fracture plane width, and fracture aperture. Finally, a fitting equation was acquired to provide a reference for practical engineering applications.
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DOI：
--
发表时间：
2005
期刊：
Chinese journal of rock mechanics and engineering
影响因子：
--
作者：
W. Ruan
通讯作者：
W. Ruan
影响因子：
6.9
作者：
Eriksson, M;Stille, H;Andersson, J
通讯作者：
Andersson, J
DOI：
10.1061/(asce)cf.1943-5509.0000044
发表时间：
2009-11
影响因子：
2.5
作者：
Khalid R. Al-Labadi;H. M. Al-Humaidi;F. Tan
通讯作者：
Khalid R. Al-Labadi;H. M. Al-Humaidi;F. Tan
影响因子：
6.9
作者：
G. Gustafson;H. Stille
通讯作者：
G. Gustafson;H. Stille
影响因子：
6.9
作者：
O. Saeidi;H. Stille;S. Torabi
通讯作者：
O. Saeidi;H. Stille;S. Torabi