Query：
学者姓名：施静康
Refining：
Year
Type
Indexed by
Source
Complex
Former Name
Co-
Language
Clean All
Abstract ：
The accurate prediction of ground surface settlement remains a crucial undertaking in shield tunnelling, particularly for tunnels with super large diameters. Instead of employing conventional deterministic analysis, this study employed 3D random finite element method (RFEM) to probabilistically investigate the longitudinal ground surface settlement induced by super large diameter shield tunneling. Through large quantities of numerical simulations, a new modified Logistic function with parameters of maximum ground settlement Smax, settlement upon face arrival S0, and settlement speed during face passage v was proposed to represent the longitudinal ground surface settlement curves. The probabilistic distribution of longitudinal ground settlement was transformed into a multivariate Gaussian distribution of Smax, S0, and v. A randomness transfer coefficient eta was innovatively proposed to evaluate the effects of randomness transferred from modulus random field to the ground settlements. It was found that the mean values of Smax, S0, and v were rarely affected by random field statistics. The randomness transferring coefficient eta was determined by the vertical and horizontal scales of fluctuation (delta v and delta h). The correlation coefficients between Smax, S0, and v were only sensitive to delta h.
Keyword ：
Ground surface settlement Ground surface settlement Logistic function Logistic function Random finite element method Random finite element method Randomness transferring coefficient Randomness transferring coefficient Shield tunneling Shield tunneling
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | Shi, Jing-Kang , Zhang, Jin-Zhang , Zhao, Shuai et al. Probabilistic analysis of ground surface settlement induced by super large diameter shield tunneling based on 3D random finite element method [J]. | COMPUTERS AND GEOTECHNICS , 2025 , 181 . |
| MLA | Shi, Jing-Kang et al. "Probabilistic analysis of ground surface settlement induced by super large diameter shield tunneling based on 3D random finite element method" . | COMPUTERS AND GEOTECHNICS 181 (2025) . |
| APA | Shi, Jing-Kang , Zhang, Jin-Zhang , Zhao, Shuai , Guan, Zhen-Chang , Huang, Hong-Wei . Probabilistic analysis of ground surface settlement induced by super large diameter shield tunneling based on 3D random finite element method . | COMPUTERS AND GEOTECHNICS , 2025 , 181 . |
| Export to | NoteExpress RIS BibTex |
Version ：
Abstract ：
With the rapid development of infrastructure construction in mountain area of China, the lining-ground interaction mechanism of mountain tunnel has attracted more and more attentions. Considering the regular two-lane mountain tunnel with ground classification of grade V, the bi-directional pushover model tests were carried out. The details about model tests including similarity ratio, similar material, model container, model fabrication and measurement system were introduced, and the variation of ground displacement, ground strain, and ground pressure with bi-directional pushover distance were carefully analyzed. Then, the lining-ground interaction mechanism was further clarified, which could be generally divided into compacting stage, overturning stage, and coercing stage. The ground was compacted slightly in compacting stage, began to divert from the springline of lining in overturning stage, and shifted the overall lining synchronously in coercing stage. The ground near the crown and shoulder of lining was compressed circumstantially to form slipping zone, and the ground near the springline of lining was compressed radically to form squeezing zone. The ground pressure in the squeezing zone was greater than its opposite side, while the ground pressure in the slipping zone was smaller than its opposite side. The numerical simulations were also carried out, while the ground displacement and the ground pressure were focused and compared with experiment results. These researches could deepen the understanding of lining-ground interaction mechanism for mountain tunnel, and provide some experimental basis and technical support for the response displacement method in anti-seismic design of underground structures.
Keyword ：
Bi-directional pushover model test Bi-directional pushover model test Lining-ground interaction mechanism Lining-ground interaction mechanism Mountain tunnel Mountain tunnel Response displacement method Response displacement method
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | Guan, Zhenchang , Lin, Yuanying , Qiu, Huasheng et al. The Lining-Ground Interaction Mechanism Under Seismic Scenario Based on Bi-lateral Pushover Model Tests and Numerical Simulations [J]. | ROCK MECHANICS AND ROCK ENGINEERING , 2025 , 58 (7) : 7937-7955 . |
| MLA | Guan, Zhenchang et al. "The Lining-Ground Interaction Mechanism Under Seismic Scenario Based on Bi-lateral Pushover Model Tests and Numerical Simulations" . | ROCK MECHANICS AND ROCK ENGINEERING 58 . 7 (2025) : 7937-7955 . |
| APA | Guan, Zhenchang , Lin, Yuanying , Qiu, Huasheng , Wang, Guobo , Shi, Jingkang . The Lining-Ground Interaction Mechanism Under Seismic Scenario Based on Bi-lateral Pushover Model Tests and Numerical Simulations . | ROCK MECHANICS AND ROCK ENGINEERING , 2025 , 58 (7) , 7937-7955 . |
| Export to | NoteExpress RIS BibTex |
Version ：
Abstract ：
There have been ever more in-situ tunnel extension projects due to the growing demand for transportation. The traditional blast scheme requires a large quantity of explosive and the vibration effect is hard to control. In order to reduce explosive consumption and the vibration effect, an optimized non-cut blast scheme was proposed and applied to the in-situ expansion of the Gushan Tunnel. Refined numerical simulation was adopted to compare the traditional and optimized blast schemes. The vibration attenuation within the interlaid rock mass and the vibration effect on the adjacent tunnel were studied and compared. The simulation results were validated by the field monitoring of the vibration effect on the adjacent tunnel. Both the simulation and the monitoring results showed that the vibration velocity on the adjacent tunnel's back side was much smaller than its counterpart on the blast side, i.e., the presence of cavity reduced the blasting vibration effect significantly. The optimized non-cut blast scheme, which effectively utilized the existing free surface, could reduce the explosive consumption and vibration effect significantly, and might be preferred for in-situ tunnel expansion projects.
Keyword ：
field monitoring field monitoring in-situ tunnel expansion in-situ tunnel expansion non-cut blast scheme non-cut blast scheme numerical simulation numerical simulation vibration effect vibration effect
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | Guan, Zhenchang , Xie, Lifu , Chen, Dong et al. Numerical Simulation and Field Monitoring of Blasting Vibration for Tunnel In-Situ Expansion by a Non-Cut Blast Scheme [J]. | SENSORS , 2024 , 24 (14) . |
| MLA | Guan, Zhenchang et al. "Numerical Simulation and Field Monitoring of Blasting Vibration for Tunnel In-Situ Expansion by a Non-Cut Blast Scheme" . | SENSORS 24 . 14 (2024) . |
| APA | Guan, Zhenchang , Xie, Lifu , Chen, Dong , Shi, Jingkang . Numerical Simulation and Field Monitoring of Blasting Vibration for Tunnel In-Situ Expansion by a Non-Cut Blast Scheme . | SENSORS , 2024 , 24 (14) . |
| Export to | NoteExpress RIS BibTex |
Version ：
Abstract ：
The complex geological condition encountered during excavation is the key challenge for tunneling projects. Therefore, tunnel design and construction require a comprehensive understanding of the subsurface geology. This study aims to reveal the effect of geological uncertainty on tunnel longitudinal deformation based on a reconstruction geological model using the improved coupled Markov chain method. The improved coupled Markov chain method makes the predicted results more suitable for the possible stratigraphic distribution by optimizing the transition probability matrix, and breaks through the limitations of non-coaxial predicted cell updating in traditional methods. A mapping method was proposed to establish a matching relationship between the irregular grids of the geological model and the numerical tunnel model. Then, a long tunnel in Shenzhen was selected as a case study to demonstrate the effectiveness of the proposed framework. The correlation coefficient was used to verify the relationship between tunnel deformation and the surrounding stratum with different tunnel cover depths. The geological uncertainty of various strata was quantitatively measured based on the proposed geological uncertainty index. The three-dimensional strata surrounding the tunnel were reconstructed based on exceedance probabilities for adverse geological conditions. Quantitative analysis was conducted on the tunnel vertical convergence during the excavation process.
Keyword ：
Coupled Markov chain Coupled Markov chain Geological uncertainty Geological uncertainty Shield tunnel Shield tunnel Three-dimensional Three-dimensional
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | Jiang, Qi-Hao , Zhang, Jin-Zhang , Zhang, Dong -Ming et al. Influence of geological uncertainty on longitudinal deformation of tunnel based on improved coupled Markov chain [J]. | ENGINEERING GEOLOGY , 2024 , 337 . |
| MLA | Jiang, Qi-Hao et al. "Influence of geological uncertainty on longitudinal deformation of tunnel based on improved coupled Markov chain" . | ENGINEERING GEOLOGY 337 (2024) . |
| APA | Jiang, Qi-Hao , Zhang, Jin-Zhang , Zhang, Dong -Ming , Huang, Hong-Wei , Shi, Jing-Kang , Li, Zhang-Li . Influence of geological uncertainty on longitudinal deformation of tunnel based on improved coupled Markov chain . | ENGINEERING GEOLOGY , 2024 , 337 . |
| Export to | NoteExpress RIS BibTex |
Version ：
Export
| Results： |
Selected to |
| Format： |
