Influence of polymeric resin-infilling on onset and fracture growth along wing trajectory in open-flawed sandstone specimen

Mohanty, Somanath; Das, Rashmi Ranjan

doi:10.1016/j.tafmec.2023.103836

Cited by 8 publications

(1 citation statement)

References 57 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…[7][8][9] Grouting reinforcement has been widely used in mining, water conservancy, and other construction processes to ensure the stability of fractured rock masses. [10][11][12][13][14] In fact, grouting reinforcement can be regarded as a measure to improve the stability of rock masses by filling natural cracks with other materials, such as epoxy resin, 15 cement mortar, 16 gypsum, 17 and clay. 18 Through the study of mechanical behavior and failure processes, it was found that the filling material can dramatically enhance the strength and stiffness of cracked rocks, which are determined by the strength and bonding force of the filling material.…”

Section: Introductionmentioning

confidence: 99%

Energy characteristics and damage constitutive model of pre‐cracked granite with or without filling materials

Tan,

Zhang,

Dai

et al. 2024

Fatigue Fract Eng Mat Struct

View full text Add to dashboard Cite

In order to study the effects of pre‐crack inclination angle and filling material on granite, uniaxial compression tests were performed on pre‐cracked granite specimens without filling material and specimens filled with epoxy resin, gypsum, and organosilicon. Results indicate that the peak strength and apparent stiffness of pre‐cracked granite without filling materials increase with increasing pre‐crack inclination angle. The strain energy absorbed by the filling material improves the energy storage limit, inhibits the energy release effect when microcracks are connected to each other, and ultimately improves the compressive resistance and energy storage capacity. The strengthening effect of gypsum and epoxy resin is relatively better, which is more significant when the pre‐crack inclination angle equals 0°–60°. Finally, a damage constitutive model is established, which is in good agreement with the test and numerical simulation data. The results can provide reference for the research of grouting reinforcement of rock masses.

show abstract

Section: Introductionmentioning

confidence: 99%

Energy characteristics and damage constitutive model of pre‐cracked granite with or without filling materials

Tan,

Zhang,

Dai

et al. 2024

Fatigue Fract Eng Mat Struct

View full text Add to dashboard Cite

show abstract

A review of mechanical deformation and seepage mechanism of rock with filled joints

Yue,

Li,

Liu

et al. 2024

Deep Underground Science and Engineering

View full text Add to dashboard Cite

Various defects exist in natural rock masses, with filled joints being a vital factor complicating both the mechanical characteristics and seepage mechanisms of the rock mass. Filled jointed rocks usually show mechanical properties that are weaker than those of intact rocks but stronger than those of rocks with fractures. The shape of the rock, filling material, prefabricated fissure geometry, fissure roughness, fissure inclination angle, and other factors mainly influence the mechanical and seepage properties. This paper systematically reviews the research progress and findings on filled rock joints, focusing on three key aspects: mechanical properties, seepage properties, and flow properties under mechanical response. First, the study emphasizes the effects of prefabricated defects (shape, size, filling material, inclination angle, and other factors) on the mechanical properties of the rock. The fracture extension behavior of rock masses is revealed by the stress state of rocks with filled joints under uniaxial compression, using advanced auxiliary test techniques. Second, the seepage properties of rocks with filled joints are discussed and summarized through theoretical analysis, experimental research, and numerical simulations, focusing on organizing the seepage equations of these rocks. The study also considers the form of failure under stress–seepage coupling for both fully filled and partially filled fissured rocks. Finally, the limitations in the current research on the rock with filled joints are pointed out. It is emphasized that the specimens should more closely resemble real conditions, the analysis of mechanical indexes should be multi‐parameterized, the construction of the seepage model should be refined, and the engineering coupling application should be multi‐field–multiphase.

show abstract

Effect of grouting on damage and fracture characteristics of fractured rocks under mode I loading

Hu,

Chen,

Sun

et al. 2024

Construction and Building Materials

View full text Add to dashboard Cite

Influence of polymeric resin-infilling on onset and fracture growth along wing trajectory in open-flawed sandstone specimen

Cited by 8 publications

References 57 publications

Energy characteristics and damage constitutive model of pre‐cracked granite with or without filling materials

Energy characteristics and damage constitutive model of pre‐cracked granite with or without filling materials

A review of mechanical deformation and seepage mechanism of rock with filled joints

Effect of grouting on damage and fracture characteristics of fractured rocks under mode I loading

Contact Info

Product

Resources

About