Effect of lateral pressure on the stability of inclined layered rock tunnel: A 3D-printed model investigation by cement-based materials
Source abstract
Abstract
The inclined layered rock tunnel engineering in the alpine canyon area subject to tectonic stress will be influenced by high lateral stress. Currently, there are scarce reports on the impact of the lateral pressure coefficient on the stability of inclined layered rock tunnels. Hence, the mechanical response of the inclined layered tunnel model was investigated based on the 3D-printed model test, supplemented by acoustic emission (AE) and digital image correlation (DIC) monitoring methods under three cases of lateral pressure coefficients of 1.2, 1.5 and 1.8. The results reveal that for the tunnel model with a 60° bedding inclination, the bearing capacity is negatively correlated with the lateral pressure coefficient. The normal deformation of the bedding of the tunnel model is prominent, exhibiting significant asymmetric deformation characteristics. When the lateral pressure coefficient k increases from 1.2 to 1.5, the failure of the tunnel model changes from shear-slip failure along the layer to bedding cracking and buckling failure of the sidewall. The test results have enlightenment significance for the stability evaluation of inclined layered surrounding rock tunnels in the alpine canyon area.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Grouting, Rheology, and Soil Mechanics · Tunneling and Rock Mechanics · Geotechnical Engineering and Analysis
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (37)
Show source-provided references
1. Study on mechanical characteristics and damage model of layered sandstone after high temperature action
2. Influences of confining pressure and bedding angles on the deformation, fracture and mechanical characteristics of slate10.1016/j.conbuildmat.2020.118255 ↗
3. Influence of lithology and bedding orientation on failure behavior of “D” shaped tunnel10.1016/j.tafmec.2023.104219 ↗
4. Investigating the aging damage evolution characteristics of layered hard sandstone using digital image correlation10.1016/j.conbuildmat.2022.128838 ↗
5. Analysis of a complex flexural toppling failure of large underground caverns in layered rock masses10.1007/s00603-019-01760-5 ↗
6. Constitutive representation and damage degree index for the layered rock mass excavation response in underground openings10.1016/j.tust.2017.01.016 ↗
7. Micro-cracking morphology and dynamic fracturing mechanism of natural brittle sandstone containing layer structure under compression10.1016/j.conbuildmat.2024.136051 ↗
8. Measures for controlling large deformations of underground caverns under high in-situ stress condition – A case study of Jinping I hydropower station10.1016/j.jrmge.2016.06.002 ↗
9. Towards a better understanding of squeezing potential in hard rock mines10.1179/037178411X12942393517372 ↗
10. Research on large deformation control technology of tunnels in squeezing rock and its application10.1177/0036850420923167 ↗
11. Stability study of large underground caverns under high geostress
12. Progressive failure process of secondary lining of a tunnel under creep effect of surrounding rock10.1016/j.tust.2019.04.024 ↗
13. Monitoring and field tests for controlling large tunnel deformation in squeezing ground: a case study10.1007/s10064-024-03622-z ↗
14. Modeling transient excavation-induced dynamic responses in rock mass using an elasto-plastic cellular automaton
15. Long-term deformation and control structure of rheological tunnels based on numerical simulation and on-site monitoring10.1016/j.engfailanal.2020.104928 ↗
16. Peridynamics simulation of surrounding rock damage characteristics during tunnel excavation
17. Dynamic mechanical properties and failure characteristics of layered composite rock containing a tunnel-shaped hole10.1016/j.tafmec.2023.104217 ↗
18. Fdem numerical modeling of failure mechanisms of anisotropic rock masses around deep tunnels10.1016/j.compgeo.2021.104535 ↗
19. Experimental analysis of shield tbm tunnel lining mechanical behaviour in an anisotropically-jointed rock mass10.1007/s12205-019-1808-1 ↗
20. Model tests for deformation and failure characteristics during layered soft rock tunnel excavation under different horizontal stress conditions
21. Research on the large deformation mechanism and control measures of a layered soft rock tunnel10.1007/s10064-023-03467-y ↗
22. Physical model experimental study on spalling failure around a tunnel in synthetic marble10.1007/s00603-019-01952-z ↗
23. Binder jetting 3d printing rock analogs using magnesium phosphate cement10.1016/j.conbuildmat.2024.135620 ↗
24. A novel 3d printing technology for synthetic hard rock and the fabrication of jinping marble10.1007/s00603-022-03054-9 ↗
25. The 3D-printing technology of geological models using rock-like materials10.1007/s00603-018-1703-y ↗
26. Inner damage identification and residual strength assessment of a 3D printed tunnel with marble-like cementitious materials using piezoelectric transducers
27. Failure performance of 3dp physical twin-tunnel model and corresponding safety factor evaluation10.1007/s00603-020-02244-7 ↗
28. Crack and crack growth behavior analysis of asphalt mixtures based on the digital speckle correlation method10.1016/j.conbuildmat.2017.04.130 ↗
29. Damage assessment of corrosion in prestressed concrete by acoustic emission10.1016/j.conbuildmat.2012.11.071 ↗
30. Kong · An experimental investigation on stress-induced cracking mechanisms of a volcanic rock. Engineering Geology · 2021 · 280 · 105934
31. Failure mechanisms and modes of tunnels in monoclinic and soft-hard interbedded rocks: a case study10.1007/s12205-020-1324-3 ↗
32. Study on the large deformation characteristics and disaster mechanism of a thin-layer soft-rock tunnel
33. Feng · 2024
34. Mechanical analyses and controlling measures for large deformations of inclined and laminar stratum during tunnelling10.1007/s10706-020-01210-y ↗
35. Failure mechanism and control technology of large deformation for muzhailing tunnel in stratified rock masses10.1007/s10064-021-02222-5 ↗
36. Dynamic response characteristics and instability mechanism of layered surrounding rock tunnels affected by geostress under dynamic and static loads10.1016/j.engfailanal.2024.108202 ↗
37. Role of foliation occurrence and stress orientation on asymmetric failure in foliated rock tunnel: insight from numerical simulation10.1016/j.engfailanal.2024.108174 ↗