Research on the influence of contact surface constraint on mechanical properties of rock-concrete composite specimens under compressive loads

doi:10.1007/s11709-019-0594-7

Front. Struct. Civ. Eng.

2020, Vol. 14

Issue (2) : 322-330 https://doi.org/10.1007/s11709-019-0594-7

RESEARCH ARTICLE

Research on the influence of contact surface constraint on mechanical properties of rock-concrete composite specimens under compressive loads

Baoyun ZHAO^1,^2,³(

), Yang LIU^1,³, Dongyan LIU^1,³, Wei HUANG^1,³, Xiaoping WANG^1,³, Guibao YU^1,⁴, Shu LIU^1,⁴

¹. School of Civil Engineering and Architecture, Chongqing University of Science and Technology, Chongqing 401331, China
². The Key Laboratory of Well Stability and Fluid & Rock Mechanics in Oil and Gas Reservoir of Shaanxi Province, Xi’an Shiyou University, Xi’an 710065, China
³. Chongqing Key Laboratory of Energy Engineering Mechanics & Disaster Prevention and Mitigation, Chongqing University of Science and Technology, Chongqing 401331, China
⁴. Graduate Office, Chongqing University of Science and Technology, Chongqing 401331, China

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Abstract

The contact form of rock-concrete has a crucial influence on the failure characteristics of the stability of rock-concrete engineering. To study the influence of contact surface on the mechanical properties of rock-concrete composite specimens under compressive loads, the two different contact forms of rock-concrete composite specimens are designed, the mechanical properties of these two different specimens are analyzed under triaxial compressive condition, and analysis comparison on the stress-strain curves and failure forms of the two specimens is carried out. The influence of contact surface constraint on the mechanical properties of rock-concrete composite specimens is obtained. Results show that the stress and strain of rock-concrete composite specimens with contact surface constraint are obviously higher than those without. Averagely, compared with composite specimens without the contact surface, the existence of contact surface constraint can increase the axial peak stress of composite specimens by 24% and the axial peak strain by 16%. According to the characteristics of the fracture surface, the theory of microcrack development is used to explain the contact surface constraint of rock-concrete composite specimens, which explains the difference of mechanical properties between the two rock-concrete composite specimens in the experiment. Research results cannot only enrich the research content of the mechanics of rock contact, but also can serve as a valuable reference for the understanding of the corresponding mechanics mechanism of other similar composite specimens.

Keywords rock-concrete composite specimen contact surface mechanical properties failure mechanism

Corresponding Author(s): Baoyun ZHAO

Just Accepted Date: 30 December 2019 Online First Date: 13 March 2020 Issue Date: 08 May 2020

Cite this article:

Baoyun ZHAO,Yang LIU,Dongyan LIU, et al. Research on the influence of contact surface constraint on mechanical properties of rock-concrete composite specimens under compressive loads[J]. Front. Struct. Civ. Eng., 2020, 14(2): 322-330.

URL:

https://academic.hep.com.cn/fsce/EN/10.1007/s11709-019-0594-7
https://academic.hep.com.cn/fsce/EN/Y2020/V14/I2/322

Fig.1 Rock-concrete composite specimens without (left) and with (right) contact surface constraint.

Fig.2 Triaxial experimental machine.

Fig.3 Installation of lateral and axial extensometer of rock-concrete composite specimens.

Fig.4 Schematic diagram of experimental loading of rock-concrete composite specimens.

specimen types	$σ 3$ (MPa)	diameter (mm)	height (mm)	density (kg/m³)	$σ 1$ (MPa)	$ε 1$ (%)	$ε 3$ (%)	wave velocity (km/s)
composite specimen A	A0	49.88	99.35	2356	21.44	0.78	0.36	0.153
	A7	49.93	99.97	2425	65.84	0.8	0.45	0.165
	A15	50.04	100.02	2347	90.59	1.06	0.68	0.154
	A22	49.82	100.15	2341	95.00	1.01	1.32	0.178
composite specimen B	B0	49.70	99.77	2412	30.56	0.59	1.18	2.083
	B7	50.14	99.65	2431	65.98	0.82	1.00	2.027
	B15	50.19	99.76	2398	94.07	1.06	0.94	2.049
	B22	49.61	100.14	2486	115.54	1.49	0.84	2.068

Tab.1 Basic mechanical parameters of two rock-concrete composite specimens.

Fig.5 Triaxial compression stress-strain curves of rock-concrete composite specimens (a) with and (b) without contact surface constraint, respectively.

Fig.6 (a) The axial peak strain curves and their fitting curves of two rock-concrete composite specimens; (b) lateral peak strain curves and their fitting curves of two rock-concrete composite specimens.

Fig.7 Relationship between peak stress and confining pressure of two different rock-concrete composite specimens.

Fig.8 (a) The failure mode of rock-concrete composite specimen with contact surface constraint; (b) the failure mode of rock-concrete composite specimen without contact surface constraint.

Fig.9 Development mode of microcracks inside rock specimens.

Fig.10 Schematic diagram of microcrack development of rock-concrete composite specimens with contact surface constraints.

Fig.11 Schematic diagram of microcrack development of rock-concrete composite specimens with contact surface constraints.

1	G A F Abu-Farsakh, H M. Al-Jarrah Micro-mechanical damage model accounting for composite material nonlinearity due to matrix-cracking of unidirectional composite laminates. Composites Science and Technology, 2018, 167: 268–276 https://doi.org/10.1016/j.compscitech.2018.08.012
2	J G Gutiérrez-Ch, S Senent, S Melentijevic, R Jimenez. Distinct element method simulations of rock-concrete interfaces under different boundary conditions. Engineering Geology, 2018, 240: 123–139 https://doi.org/10.1016/j.enggeo.2018.04.017
3	Z Q Gao, W P Fu, W Wang, W C Kang, Y P Liu. The study of anisotropic rough surfaces contact considering lateral contact and interaction between asperities. Tribology International, 2018, 126: 270–282 https://doi.org/10.1016/j.triboint.2018.01.056
4	Q Wang, R Pan, B Jiang, S C Li, M C He, H B Sun, L Wang, Q Qin, H C Yu, Y C Luan. Study on failure mechanism of roadway with soft rock in deep coal mine and confined concrete support system. Engineering Failure Analysis, 2017, 81: 155–177 https://doi.org/10.1016/j.engfailanal.2017.08.003
5	N A Do, D Dias. Tunnel lining design in multi-layered grounds. Tunnelling and Underground Space Technology, 2018, 81: 103–111 https://doi.org/10.1016/j.tust.2018.07.005
6	W S Zhao, W Z Chen, D S Yang. Interaction between strengthening and isolation layers for tunnels in rock subjected to SH waves. Tunnelling and Underground Space Technology, 2018, 79: 121–133 https://doi.org/10.1016/j.tust.2018.05.012
7	J Schänzlin, M Fragiacomo. Analytical derivation of the effective creep coefficients for timber-concrete composite structures. Engineering Structures, 2018, 172: 432–439 https://doi.org/10.1016/j.engstruct.2018.05.056
8	W Dong, Z M Wu, X M Zhou, N Wang, G Kastiukas. An experimental study on crack propagation at rock-concrete interface using digital image correlation technique. Engineering Fracture Mechanics, 2017, 171: 50–63 https://doi.org/10.1016/j.engfracmech.2016.12.003
9	W Dong, D Yang, X Zhou, G Kastiukas, B Zhang. Experimental and numerical investigations on fracture process zone of rock-concrete interface. Fatigue & Fracture of Engineering Materials & Structures, 2017, 40(5): 820–835 https://doi.org/10.1111/ffe.12558
10	W S Zhao, W Z Chen, K Zhao. Laboratory test on foamed concrete-rock joints in direct shear. Construction & Building Materials, 2018, 173: 69–80 https://doi.org/10.1016/j.conbuildmat.2018.04.006
11	A Bloodworth, J Su. Numerical analysis and capacity evaluation of composite sprayed concrete lined tunnels. Underground Space, 2018, 3(2): 87–108 https://doi.org/10.1016/j.undsp.2017.12.001
12	X Chang, J Lu, S Wang, S Wang. Mechanical performances of rock-concrete bi-material disks under diametrical compression. International Journal of Rock Mechanics and Mining Sciences, 2018, 104: 71–77 https://doi.org/10.1016/j.ijrmms.2018.02.008
13	Z Hong, T Ean, C M Song, D Tao, L Gao, H J Li. Experimental and numerical study of the dependency of interface fracture in concrete-rock specimens on mode mixity. Engineering Fracture Mechanics, 2014, 124–125: 287–309
14	S Eleni, B Matthieu, D Frédéric, C Guillaume. Experimental characterisation of the mechanical properties of the clay-rock/concrete interfaces and their evolution in time. Challenges in Mechanics of Time Dependent Materials, 2018, 2: 1–3
15	M L B Farinha, N M Azevedo, M Candeias. Small displacement coupled analysis of concrete gravity dam foundations: Static and dynamic conditions. Rock Mechanics and Rock Engineering, 2017, 50(2): 439–464 https://doi.org/10.1007/s00603-016-1125-7
16	M Hussein, B Marion, L Madly, V Didier. Experimental study of the shear strength of bonded concrete-rock interfaces: Surface morphology and scale effect. Rock Mechanics and Rock Engineering, 2017, 50(10): 2601–2625 https://doi.org/10.1007/s00603-017-1259-2
17	T D Y F Simanjuntak, M Marence, A J Schleiss, A E Mynett. The interplay of in situ stress ratio and transverse isotropy in the rock mass on prestressed concrete-lined pressure tunnels. Rock Mechanics and Rock Engineering, 2016, 49(11): 4371–4392 https://doi.org/10.1007/s00603-016-1035-8
18	M de Granrut, A Simon, D Dias. Artificial neural networks for the interpretation of piezometric levels at the rock-concrete interface of arch dams. Engineering Structures, 2019, 178: 616–634 https://doi.org/10.1016/j.engstruct.2018.10.033
19	V Andjelkovic, P Nenad, L Zarko, N Velimir. Modelling of shear characteristics at the concrete-rock mass interface. International Journal of Rock Mechanics and Mining Sciences, 2015, 76: 222–236 https://doi.org/10.1016/j.ijrmms.2015.03.024
20	A Krounis, F Johansson, S. Larsson Effects of spatial variation in cohesion over the concrete-rock interface on dam sliding stability. Journal of Rock Mechanics and Geotechnical Engineering, 2015, 7(6): 659–667 https://doi.org/10.1016/j.jrmge.2015.08.005
21	X Kang, D Cambio, L Ge. Effect of parallel gradations on crushed rock-concrete interface behaviors. Journal of Testing and Evaluation, 2012, 40(1): 119–126
22	C E Fairhurst, J A Hudson. Draft ISRM suggested method for the complete stress train curve for the intact rock in uniaxial compression. International Journal of Rock Mechanics and Mining Sciences, 1993, 36(3): 279–289
23	Ministry of Water Resources of the Peoples Republic of China. SL264-2001. Water Conservancy and Hydropower Engineering Specifications for Rock Tests. Beijing: China Water Power Press, 2001 (in Chinese)
24	P Barsanescu, A Sandovici, A Serban. Mohr-Coulomb criterion with circular failure envelope, extended to materials with strength-differential effect. Materials & Design, 2018, 148: 49–70 https://doi.org/10.1016/j.matdes.2018.03.043
25	X P Zhou, H Q Yang. Dynamic damage localization in crack-weakened rock mass: Strain energy density factor approach. Theoretical and Applied Fracture Mechanics, 2018, 97: 289–302 https://doi.org/10.1016/j.tafmec.2017.05.006
26	M Alneasan, M Behnia, R Bagherpour. Frictional crack initiation and propagation in rocks under compressive loading. Theoretical and Applied Fracture Mechanics, 2018, 97: 189–203 https://doi.org/10.1016/j.tafmec.2018.08.011
27	J W Zhou, G X Yang, W X Fu, J Xu, H T Li, H W Zhou, J F Liu. Uniaxial cyclic loading and unloading test of brittle rock and mechanical properties of fracture damage. Chinese Journal of Rock Mechanics and Engineering, 2010, 29(6): 1172–1183 (in Chinese)

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