Failure Patterns and Energy Analysis of Shaft Lining Concrete in Simulated Deep Underground Environments

The failure patterns and energy evolution of three types of shaft lining concrete subjected to static and dynamic loading were reported. The energy and damage characteristics of concrete were determined by means of a uniaxial hydraulic servo machine, acoustic emission (AE) equipment, a split Hopkinson pressure bar (SHPB) and an ultrasonic wave analyser. The experimental results indicate that the confluence of multiple cracks forms a penetrating cross section in normal high-strength concrete (NHSC) under the condition of static loading, while the elastic energy that surges out at failure can cause tremendous damage when subjected to dynamic loading. A single crack was split into multiple propagation directions due to the presence of fibres in steel fibre-reinforced concrete (SFRC); adding fibre to concrete should be an effective way to dissipate energy. The non-steam-cured reactive powder concrete (NSC-RPC) designed in this paper can store and dissipate more energy than normal concrete, as NSC-RPC exhibits a strong ability to resist impact. Applying NSC-RPC to the long-service material of a shaft lining structure in deep underground engineering is quite effective.

[1]  H. Kolsky.  An Investigation of the Mechanical Properties of Materials at very High Rates of Loading , 1949 .

[2]  J. P. Romualdi,et al.  Tensile Strength of Concrete Affected by Uniformly Distributed and Closely Spaced Short Lengths of Wire Reinforcement , 1964 .

[3]  Bengt Lundberg,et al.  A split Hopkinson bar study of energy absorption in dynamic rock fragmentation , 1976 .

[4]  S. Bang,et al.  PERFORMANCE OF EPOXY-COATED REINFORCED EARTH STRIPS , 1987 .

[5]  P. Richard,et al.  Composition of reactive powder concretes , 1995 .

[6]  Sandor Popovics,et al.  Ultrasonic pulse velocity test of concrete properties as specified in various standards , 1996 .

[7]  Zhang Yunsheng,et al.  Interaction Between Sulfate and Chloride Solution Attack of Concretes With and Without Fly Ash , 2007 .

[8]  Juanhong Liu,et al.  Durability and micro-structure of reactive powder concrete , 2009 .

[9]  Wei Sun,et al.  Dynamic behaviour and visco-elastic damage model of ultra-high performance cementitious composite , 2009 .

[10]  N. Barkoula,et al.  Acoustic emission behavior of steel fibre reinforced concrete under bending , 2009 .

[11]  Yang Ju,et al.  Energy analysis and criteria for structural failure of rocks , 2009 .

[12]  Mucteba Uysal,et al.  The effect of pre-setting pressure applied flexural strength and fracture toughness of reactive powder concrete during the setting phase , 2012 .

[13]  H. Hao,et al.  Mesoscale modelling of dynamic tensile behaviour of fibre reinforced concrete with spiral fibres , 2012 .

[14]  D. McDowell,et al.  Effect of microstructure on load-carrying and energy-dissipation capacities of UHPC , 2013 .

[15]  W. Zhou,et al.  Bearing capacity of reactive powder concrete reinforced by steel fibers , 2013 .

[16]  Christopher J. Lammi,et al.  Dynamic Fracture and Dissipation Behaviors of Concrete at the Mesoscale , 2015 .

[17]  Bo Chen,et al.  Failure analysis method of concrete arch dam based on elastic strain energy criterion , 2016 .

[18]  Y. Tai,et al.  Performance of deformed steel fibers embedded in ultra-high performance concrete subjected to various pullout rates , 2016 .

[19]  D. Mostofinejad,et al.  Determination of optimized mix design and curing conditions of reactive powder concrete (RPC) , 2016 .

[20]  Zilong Zhou,et al.  Failure mechanism and coupled static-dynamic loading theory in deep hard rock mining: A review , 2017 .

[21]  Meifeng Cai,et al.  Challenges in the Mining and Utilization of Deep Mineral Resources , 2017 .

[22]  Xibing Li,et al.  Energy evolution characteristics of hard rock during triaxial failure with different loading and unloading paths , 2017 .

[23]  Yang Ju,et al.  Groundbreaking theoretical and technical conceptualization of fluidized mining of deep underground solid mineral resources , 2017 .

[24]  X. Fan,et al.  Influence of single flaw on the failure process and energy mechanics of rock-like material , 2017 .

[25]  Minghe Ju,et al.  Opportunities and Challenges in Deep Mining: A Brief Review , 2017 .

[26]  Zhenguo Shi,et al.  Early age shrinkage and heat of hydration of cement-fly ash-slag ternary blends , 2017 .

[27]  M. Cai,et al.  Analysis of rockburst in tunnels subjected to static and dynamic loads , 2017 .

[28]  Wen He,et al.  Static and dynamic compressive properties of ultra-high performance concrete (UHPC) with hybrid steel fiber reinforcements , 2017 .

[29]  Heinz Konietzky,et al.  Characteristics of dissipated energy of concrete subjected to cyclic loading , 2018 .

[30]  Sumeet Kumar Sinha,et al.  Energy dissipation analysis of elastic-plastic materials , 2018 .

[31]  Eric N. Landis,et al.  Acoustic emission-based classification of energy dissipation mechanisms during fracture of fiber-reinforced ultra-high-performance concrete , 2018, Construction and Building Materials.

[32]  Vimal Kumar,et al.  Study of induced prestress on deformation and energy absorption characteristics of concrete slabs under drop impact loading , 2018, Construction and Building Materials.

[33]  Jianhe Xie,et al.  Effects of steel slag as fine aggregate on static and impact behaviours of concrete , 2018, Construction and Building Materials.

[34]  Jun-Yan Wang,et al.  Damage investigation of ultra high performance concrete under direct tensile test using acoustic emission techniques , 2018 .

[35]  H. Q. Yang,et al.  Dynamic damage localization in crack-weakened rock mass: Strain energy density factor approach , 2018, Theoretical and Applied Fracture Mechanics.

[36]  P. Mendis,et al.  Understanding failure and stress-strain behavior of very-high strength concrete (>100 MPa) confined by lateral reinforcement , 2018, Construction and Building Materials.

[37]  J. Ou,et al.  Mechanical behaviors of nano-zirconia reinforced reactive powder concrete under compression and flexure , 2018 .

[38]  H. Konietzky,et al.  Hysteresis energy-based failure indicators for concrete and brittle rocks under the condition of fatigue loading , 2018, International Journal of Fatigue.

[39]  E. Moffatt,et al.  Performance of 25-year-old silica fume and fly ash lightweight concrete blocks in a harsh marine environment , 2018, Cement and Concrete Research.

[40]  Shijie Chen,et al.  Analysis of Dynamic Tensile Process of Fiber Reinforced Concrete by Acoustic Emission Technique , 2018, Journal of Wuhan University of Technology-Mater. Sci. Ed..

[41]  Hikaru Nakamura,et al.  Experimental investigation of compressive strength and compressive fracture energy of longitudinally cracked concrete , 2018, Cement and Concrete Composites.

[42]  Xiaoxin Feng,et al.  Thermodynamic Stability of Sulfate Ions on Calcium Aluminosilicate Hydrate Microstructure , 2019, Journal of Wuhan University of Technology-Mater. Sci. Ed..

[43]  Linjian Ma,et al.  Mechanical properties of coral concrete subjected to uniaxial dynamic compression , 2019, Construction and Building Materials.