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Visualization of Grout Permeation inside Transparent Soil
This paper presents an experimental investigation on the permeation process of grout inside soil. The injection of grout inside soil and its permeation process is not well known due to the fact that natural soils are not transparent.In this study, a transparent soil is used to visualize the permeation process. Transparent soil used in this study is made of fused silica and calcium bromide solution with the same refractive index. Geotechnical properties of transparent soil were found to be similar to those of natural sands. A combined grouting and optical measurement system is developed for this study, which consists of a grout injection station with a constant pressure head to inject grout into a transparent soil model, a laser to illuminate the interested cross-section inside the model, and a charge-coupled device (CCD) camera to capture a series of images during the whole grout injection and permeation process. Image processing techniques are used to delineate the fronts of grout body. It was found that the radius of grout body is proportional to the grouting time, which verifies Maag's permeation grouting formula.
Visualization of Grout Permeation inside Transparent Soil
This paper presents an experimental investigation on the permeation process of grout inside soil. The injection of grout inside soil and its permeation process is not well known due to the fact that natural soils are not transparent.In this study, a transparent soil is used to visualize the permeation process. Transparent soil used in this study is made of fused silica and calcium bromide solution with the same refractive index. Geotechnical properties of transparent soil were found to be similar to those of natural sands. A combined grouting and optical measurement system is developed for this study, which consists of a grout injection station with a constant pressure head to inject grout into a transparent soil model, a laser to illuminate the interested cross-section inside the model, and a charge-coupled device (CCD) camera to capture a series of images during the whole grout injection and permeation process. Image processing techniques are used to delineate the fronts of grout body. It was found that the radius of grout body is proportional to the grouting time, which verifies Maag's permeation grouting formula.
Visualization of Grout Permeation inside Transparent Soil
Liu, Jinyuan (author) / Gao, Yue (author) / Sui, Wanghua (author)
Second International Conference on Geotechnical and Earthquake Engineering ; 2013 ; Chengdu, China
IACGE 2013 ; 188-194
2013-10-09
Conference paper
Electronic Resource
English
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