Meso-Mechanical Simulation of Fracture Grouting under Fluid-Solid Coupling Environment and Engineering Applications

Feng Sun; Rong Pan; Xiu Yun Zhu; Tie Lin Chen

doi:10.4028/www.scientific.net/AMM.477-478.485

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Laboratory Test Method for Dynamic Rebound Modulus of Subgrade Red Clay in Moist-Heat Area
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Experimental Study on Influence of Seasonally Frozen Ground on Horizontal Frost-Heave Force of Frozen Wall
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Effect of Different Organic Matter Content on Soil Moisture Dynamics
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Meso-Mechanical Simulation of Fracture Grouting under Fluid-Solid Coupling Environment and Engineering Applications
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Study on Grouting Heave for Pipeline Underground in Urban Tunnel Engineering
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Further Debate about Visual Design Methods for Pile Foundation
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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 477-478Meso-Mechanical Simulation of Fracture Grouting...

Meso-Mechanical Simulation of Fracture Grouting under Fluid-Solid Coupling Environment and Engineering Applications

Abstract:

Due to the complication of grouting process in soil, design of fracture grouting works is still mainly based on empirical considerations and experiences from past projects. Based on the theory of particle flow, the domain of flow is defined by using Fish language implemented in PFC and the formulas for flow and pressure are put forward respectively. Combined with above study, the process of fracture grouting in soil is simulated with particle flow code (PFC2D) from micro-viewpoint under coupling environment. In addition, the emergence and development of crack and grouting pressure in soil is analyzed under different grouting pressure and soil properties. The research results show that pressure plays a key role in consolidating the soil by fracture grouting, but in fact it should be kept in a reasonable value in order to forming grouting slurry net entirely. Filed test indicates that fracture grouting greatly increases the bearing capacity of weathered rock in Xiamen Xiangan subsea tunneling and the conclusions of numerical simulation agrees well with the field test and grouting theory.

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Periodical:

Applied Mechanics and Materials (Volumes 477-478)

Pages:

485-491

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.477-478.485

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Cite this paper

Online since:

December 2013

Authors:

Feng Sun, Rong Pan, Xiu Yun Zhu*, Tie Lin Chen

Keywords:

Fluid Solid Coupling, Fracture Grouting, Meso-Mechanical Simulation, PFC, Weathered Rock

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