A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Experimental Study on Flow Water Diffusion of Cement-Sodium Silicate Grouting in Rough Fracture Model
https://orcid.org/http://orcid.org/0000-0003-4290-5994
https://orcid.org/http://orcid.org/0009-0003-4046-4889
https://orcid.org/http://orcid.org/0000-0002-2001-3496
https://orcid.org/http://orcid.org/0000-0002-2321-5982
Grouting is one of the common methods used to seal and reinforce fractures in underground construction. Flowing groundwater is often encountered in underground spaces, and grout sealing in such situations. Cement-sodium silicate (C-S) slurry is one of the commonly used quick-setting materials for sealing flowing water. Aperture width, initial water flow velocity, grout pressure and gel time are the key factors affecting dynamic flow grouting. Orthogonal tests based on a homemade experimental platform for simulating two-sided rough fractures in dynamic water grouting are conducted to investigate the effects of the four factors on slurry diffusion and sealing. The results show that there are three main modes of slurry diffusion: near cross diffusion mode, near U-shaped diffusion mode, and near T-shaped diffusion mode. Those affecting the slurry sealing efficiency from strong to weak are initial water flow velocity, aperture width, gel time and grouting pressure. The final distribution patterns of the slurry are divided into four types: successful sealing, partial sealing of boundary erosion, failure sealing of violent erosion, and ineffective sealing. According to these results, it has certain guiding significance for grouting sealing in practical engineering applications.
Experimental Study on Flow Water Diffusion of Cement-Sodium Silicate Grouting in Rough Fracture Model
https://orcid.org/http://orcid.org/0000-0003-4290-5994
https://orcid.org/http://orcid.org/0009-0003-4046-4889
https://orcid.org/http://orcid.org/0000-0002-2001-3496
https://orcid.org/http://orcid.org/0000-0002-2321-5982
Grouting is one of the common methods used to seal and reinforce fractures in underground construction. Flowing groundwater is often encountered in underground spaces, and grout sealing in such situations. Cement-sodium silicate (C-S) slurry is one of the commonly used quick-setting materials for sealing flowing water. Aperture width, initial water flow velocity, grout pressure and gel time are the key factors affecting dynamic flow grouting. Orthogonal tests based on a homemade experimental platform for simulating two-sided rough fractures in dynamic water grouting are conducted to investigate the effects of the four factors on slurry diffusion and sealing. The results show that there are three main modes of slurry diffusion: near cross diffusion mode, near U-shaped diffusion mode, and near T-shaped diffusion mode. Those affecting the slurry sealing efficiency from strong to weak are initial water flow velocity, aperture width, gel time and grouting pressure. The final distribution patterns of the slurry are divided into four types: successful sealing, partial sealing of boundary erosion, failure sealing of violent erosion, and ineffective sealing. According to these results, it has certain guiding significance for grouting sealing in practical engineering applications.
Experimental Study on Flow Water Diffusion of Cement-Sodium Silicate Grouting in Rough Fracture Model
https://orcid.org/http://orcid.org/0000-0003-4290-5994
https://orcid.org/http://orcid.org/0009-0003-4046-4889
https://orcid.org/http://orcid.org/0000-0002-2001-3496
https://orcid.org/http://orcid.org/0000-0002-2321-5982
Grouting is one of the common methods used to seal and reinforce fractures in underground construction. Flowing groundwater is often encountered in underground spaces, and grout sealing in such situations. Cement-sodium silicate (C-S) slurry is one of the commonly used quick-setting materials for sealing flowing water. Aperture width, initial water flow velocity, grout pressure and gel time are the key factors affecting dynamic flow grouting. Orthogonal tests based on a homemade experimental platform for simulating two-sided rough fractures in dynamic water grouting are conducted to investigate the effects of the four factors on slurry diffusion and sealing. The results show that there are three main modes of slurry diffusion: near cross diffusion mode, near U-shaped diffusion mode, and near T-shaped diffusion mode. Those affecting the slurry sealing efficiency from strong to weak are initial water flow velocity, aperture width, gel time and grouting pressure. The final distribution patterns of the slurry are divided into four types: successful sealing, partial sealing of boundary erosion, failure sealing of violent erosion, and ineffective sealing. According to these results, it has certain guiding significance for grouting sealing in practical engineering applications.
Experimental Study on Flow Water Diffusion of Cement-Sodium Silicate Grouting in Rough Fracture Model
KSCE J Civ Eng
Xu, Zengguang (author) / Wang, Yanzhao (author) / Cao, Cheng (author) / Chai, Junrui (author)
KSCE Journal of Civil Engineering ; 27 ; 1955-1965
2023-05-01
11 pages
Article (Journal)
Electronic Resource
English
Principles of cement, silicate and bituminous grouting
| Engineering Index Backfile | 1936
Experimental investigation on chemical grouting in rough 2D fracture network with flowing water
| Online Contents | 2021
Application of Sodium Silicate Chemical Grouting to Tropical Regions
| Springer Verlag | 2019