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Evolution and control of overburden fracture in extra-thick coal seam mining with hard roofs: ground grouting sealing and case study
In the process of coal mining, the original state of rock strata is seriously damaged and a large number of fractures are produced. If the fracture...
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Experimental investigation on the sealing of flowing water by cement-sodium silicate slurry in rough single fracture
With the rapid development of underground engineering, the problem of sudden surge water has become one of the main problems that restrict...
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Effects of Confining Stresses on Mechanisms of Heave-Inducing Compaction Grouting
The control of surface heaving has been of interest in major applications of compaction grouting such as ground improvement and settlement...
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On Design and Assessment of Tail Void Grouting Material in Mechanized Tunneling: A Review
The utilization of tail void grout as a stabilizing and sealing agent in mechanized tunneling procedures is of paramount significance, given the...
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Research and Application of Modified Cement Grouting Materials for Gushing Water Disaster in Karst Conduit
Due to the complex and invisible of hydrogeology in karst area, underground construction often encountered gushing water disaster in engineering...
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An Experimental Study on Fracturing Response and Slurry Flow of High-Pressure Grouting in Fractured Rock
Grouting has been commonly used for structure controlling in mining engineering. To investigate the mechanism of fracturing grouting, an experiment...
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Experimental study on the effect of water-cement ratios on the diffusion behavior of sand soil grouting
The grouting technique has been widely applied in geotechnical engineering. However, due to the concealed nature of underground engineering, there is...
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Drilling and Grouting Works for Pressurised Groundwater Conditions of the Semmering Base Tunnel
The Semmering Base Tunnel (SBT), with a total length of 27.3 km, is one of the leading construction projects of the Baltic-Adriatic Railway Network....
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Study on visual simulation experiment of water-displacing grouting in fractured aquifer
In this study, a visual test platform for water-displacing grouting in a fractured aquifer is innovated which involves transparent materials and a...
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Field and numerical investigation of sealing the ultra-thick dolomite aquifer for a vertical shaft by surface pre-grouting
For the purpose of solving the problem of water prevention for a vertical shaft passing through the sinian ultra-thick dolomite (SUTD) aquifer in...
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Experimental and numerical modeling of diaphragm grouting in earth dams considering construction defects
Grouting is a common technique to rehabilitate old dams that started to leak. Nevertheless, grouted diaphragms are subject to construction defects...
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Experimental Study on the Grouting Diffusion Process in Fractured Sandstone with Flowing Water Based on the Low-Field Nuclear Magnetic Resonance Technique
Due to the invisibility and complexity of underground engineering rock masses, it is extremely difficult to observe the diffusion process of dynamic...
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A Novel Grouting Simulation Method Considering Diffusion and Loss of Slurry in Flowing Water: Interphase Miscible-Transport Time-Tracking (IM-3T) Method
Grouting is a complex process involving interactions of slurry and water phase. The viscosity of slurry is of spatiotemporal variation and...
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Experimental investigation on chemical grouting in rough 2D fracture network with flowing water
This paper presents an experimental investigation of propagation and fluid pressure of grouting in a two-dimensional fractured network replica....
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Numerical and practical investigation of the multiple hole grouting repair law of underground drainage pipeline defects
The grouting sequence and spatial layout of grouting holes are key technical problems in the treatment of underground drainage pipeline defects. An...
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Experimental and numerical investigation on the short- and long-term mechanical properties of mylonite before and after grouting reinforcement
Accurate determination of physical and mechanical properties of rock mass is essential for stability evaluation and structural design. To evaluate...
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A Study of Interbedded Groundwater Contamination in a Mining Area and the Process of Grouting Composite Failure
Grouting is extensively used in mining areas susceptible to potential water hazards. However, as time elapses, grout composites can fail, thereby...
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Numerical Study on Diffusion Distance and Plugging Effect of Grouting in a Vertical Fracture Under High Water Pressure
Coal mining is threatened by the aquifers below coal seams, and grouting is used to reconstruct the aquifers before mining. However, water...
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Compound-Grouting Technology and Its Application in Subsea Tunnel-Surrounding Rock
Grouting technology is widely used to achieve stable control of the subsea tunnel constructed in unfavorable geological conditions. This technology...
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The Characteristics of Grout Diffusion in Reduce Subsidence Mining with Abscission Layer Grouting
The roof abscission layer formed by coal mining changes dynamically with the mining of working face. The grouting of abscission layer is an important...
