A novel numerical method for grouting simulation in flowing water considering uneven spatial and temporal distribution of slurry: Two-Fluid Tracking (TFT) method

Xu, Zhenhao; Bu, Zehua; Pan, Dongdong; Li, Dongyue; Zhang, Y.C.

doi:10.1016/j.compgeo.2022.104756

Cited by 17 publications

(10 citation statements)

References 62 publications

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“…In Section 2, we introduce the mathematical model of slurry-water system in VOF framework. In Section 3, by comparing with the TFT method 44 and the previous experiment, we verified that our new method has advantages in computing efficiency and is suitable to be extended to fracture grouting with flowing water. In Section 4, by setting up different initial velocity and slurry properties levels, the numerical simulation study on influencing factors of fracture grouting in flowing water is carried out and the results are discussed.…”

Section: Introductionmentioning

confidence: 67%

“…Replacing the general physical quantity Φ in Equation 10 with the transport time T i , the L.H.S of the equation is the derivative of time to itself and it reduce to 1. Therefore, Equation 10 can be expressed as 44…”

Section: Implementation Of the Spatiotemporal Variation Of Slurry Vis...mentioning

confidence: 99%

\begin{equation}\frac{{\partial {{\rm{T}}}_i}}{{\partial t}} + \nabla \cdot \left( {{{{\bf U}}}_i{{\rm{T}}}_i} \right) = 1,\end{equation}

…”

Section: Implementation Of the Spatiotemporal Variation Of Slurry Vis...mentioning

confidence: 99%

“…Thus, based on the E-E method, we developed a new numerical simulation method. 44,45 The elapsed time of slurry is termed as the transport time, which can be solved by a convection-diffusion equation. By solving the transport time and use as the calculation basis of viscosity function, the spatial variation characteristics of viscosity can be solved more accurately.…”

Section: Introductionmentioning

confidence: 99%

“…Furthermore, as the viscosity of certain slurry cluster is determined by the time span from being injected to the “present,” the viscosity of the slurry cluster at any location can be expressed by a function of elapsed time. Thus, based on the E‐E method, we developed a new numerical simulation method 44,45 . The elapsed time of slurry is termed as the transport time, which can be solved by a convection‐diffusion equation.…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Numerical investigation of slurry property effect on grouting and blocking of flowing water in rock fractures

Pan

Zhang

et al. 2023

Num Anal Meth Geomechanics

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In order to investigate the slurry flow behavior, our newly proposed numerical method is applied to simulate the fracture grouting with flowing water condition. First, by numerical validation and experiment comparison, the advantages of this method in computation efficiency and accuracy are shown. Second, the initial velocity of water and slurry properties at different levels are selected as the influencing factors, the water reduction effect, grouting pressure, and slurry deposition behavior in different cases are investigated, and the variation characteristics of flow field and slurry outflow are analyzed. The simulation results show that within the range of slurry properties and flow velocity given in this paper, cement slurry cannot seal the water inflow. Instead, quick setting slurry with different material ratios can effectively seal the fracture. The sealing efficiency is more sensitive to the initial flow rate than the slurry property. When the groundwater flow rate is low, the effect of slurry proportion on sealing can be ignored. Meanwhile, slurry properties have more influence on the final grouting pressure. There is an obvious surge in grouting pressure after sealing, which can be used as a criterion for fracture sealing.

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Section: Introductionmentioning

confidence: 67%

Section: Implementation Of the Spatiotemporal Variation Of Slurry Vis...mentioning

confidence: 99%

\begin{equation}\frac{{\partial {{\rm{T}}}_i}}{{\partial t}} + \nabla \cdot \left( {{{{\bf U}}}_i{{\rm{T}}}_i} \right) = 1,\end{equation}

…”

Section: Implementation Of the Spatiotemporal Variation Of Slurry Vis...mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Numerical investigation of slurry property effect on grouting and blocking of flowing water in rock fractures

Pan

Zhang

et al. 2023

Num Anal Meth Geomechanics

View full text Add to dashboard Cite

show abstract

A Novel Grouting Simulation Method Considering Diffusion and Loss of Slurry in Flowing Water: Interphase Miscible-Transport Time-Tracking (IM-3T) Method

Zhang

Pan

et al. 2023

Rock Mech Rock Eng

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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

Liu

Weng

et al. 2023

Rock Mech Rock Eng

View full text Add to dashboard Cite

A novel numerical method for grouting simulation in flowing water considering uneven spatial and temporal distribution of slurry: Two-Fluid Tracking (TFT) method

Cited by 17 publications

References 62 publications

Numerical investigation of slurry property effect on grouting and blocking of flowing water in rock fractures

Numerical investigation of slurry property effect on grouting and blocking of flowing water in rock fractures

A Novel Grouting Simulation Method Considering Diffusion and Loss of Slurry in Flowing Water: Interphase Miscible-Transport Time-Tracking (IM-3T) Method

Experimental Study on the Grouting Diffusion Process in Fractured Sandstone with Flowing Water Based on the Low-Field Nuclear Magnetic Resonance Technique

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