Challenges of earth-pressure-balance tunnelling in weathered granite with boulders

Zhang, Nan; Shen, Shui‐Long; Zhou, Annan; Lyu, Hai‐Min

doi:10.1680/jgeen.20.00030

Cited by 10 publications

(7 citation statements)

References 40 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…However, site conditions and environmental factors become the major concerns for the selection of TBM type. In the project considered in the paper under discussion (Zhang et al, 2020), there was not enough space for slurry treatment equipment (e.g. a mud pond) as the construction site was in an urban centre.…”

Section: Discussionmentioning

confidence: 99%

“…The authors would like to thank the contributor for providing detailed and valuable discussions regarding the article (Zhang et al, 2020). The authors' responses are as follows.…”

Section: Authors' Replymentioning

confidence: 99%

“…Reference can also be made to the guidelines issued by the German Tunnelling Committee (DAUB, 2016). The Hong Kong and German guidelines can be contrasted with the process described by Zhang et al (2020), where it is reported that the face pressure was 'dynamically adjusted during the tunnelling process by the tunnelling engineers and TBM operators'. This dynamic adjustment appears to have been based on the excavated volume, as determined from counting the number of skips of material removed.…”

mentioning

confidence: 99%

See 2 more Smart Citations

Discussion: Challenges of earth pressure balance tunnelling in weathered granite with boulders

Zhang

Shen

Zhou³

et al. 2021

Proceedings of the Institution of Civil Engineers - Geotechnica

Self Cite

View full text Add to dashboard Cite

show abstract

Section: Discussionmentioning

confidence: 99%

“…The authors would like to thank the contributor for providing detailed and valuable discussions regarding the article (Zhang et al, 2020). The authors' responses are as follows.…”

Section: Authors' Replymentioning

confidence: 99%

mentioning

confidence: 99%

See 1 more Smart Citation

Discussion: Challenges of earth pressure balance tunnelling in weathered granite with boulders

Zhang

Shen

Zhou³

et al. 2021

Proceedings of the Institution of Civil Engineers - Geotechnica

Self Cite

View full text Add to dashboard Cite

show abstract

“…In engineering practices, on the one hand, the partial excavation of small section and short progress is adopted to avoid excessive excavation disturbance and protect the water-resistant performance of the rock mass. On another hand, grouting and 17 Geofluids other prereinforcement method are implemented to reinforce the water-resistant strata and improve the waterresistant performance and impermeability [34][35][36].…”

Section: Stability Analysis Based On Energy Evolutionarymentioning

confidence: 99%

Analysis of Seepage and Displacement Field Evolutionary Characteristics in Water Inrush Disaster Process of Karst Tunnel

Lai

Guo

et al. 2021

Geofluids

View full text Add to dashboard Cite

Water inrush of tunnel is one of the most common geological disasters in the karst strata in China. Aiming at the rock mass with a quasi-masonry structure in the water-resistant strata between karst cavity with high pressure water and tunnel and the shortcomings of theoretical analysis, traditional numerical simulation, and physics model test for describing and reflecting this special structure of rock mass, a Discrete Element Method considering the fluid-solid coupling effect and structural characteristics of rock mass is employed to study the disaster process of water inrush and the evolutionary characteristics of catastrophe information like seepage pressure and displacement under condition of different karst water pressure, tunnel depth, and lateral pressure coefficient. Research results show the following: (1) the seepage pressure and displacement increase with the increase of kart water pressure. The seepage pressure demonstrates a decreasing state from top to bottom in water-resistant strata, and the time of arrival to a stable value for the seepage pressure shows the time effect. (2) The larger the tunnel depth, the greater the coalescence and distribution scope of fracture and the more likely the water inrush to occur in a short time. The stability of water-resistant strata decreases on the whole with the growth of tunnel depth. (3) The increase of lateral pressure coefficient can restrain the fracture development and strengthen stability. The fracture state is significantly influenced by a lateral pressure coefficient. The results of numerical simulation are consistent with those obtained by a model test. Research and analysis based on energy are a promising train of thought for studying the disaster process of water inrush in a karst tunnel.

show abstract

“…The paper discusses the 'geotechnical path' followed by the authors to overcome the original plan of demolition of the building and extraction of the existing foundation piles, achieving a solution that keeps the building and reduces construction costs. The final article in this issue is a discussion article (Zhang et al, 2021) of a research paper by Zhang et al (2020) about the challenges of earth pressure balance tunnelling in weathered granite with boulders. I hope that all readers enjoy this February issue of Geotechnical Engineering.…”

mentioning

confidence: 99%

Editorial

Vecchia

2021

Proceedings of the Institution of Civil Engineers - Geotechnica

View full text Add to dashboard Cite

Challenges of earth-pressure-balance tunnelling in weathered granite with boulders

Cited by 10 publications

References 40 publications

Discussion: Challenges of earth pressure balance tunnelling in weathered granite with boulders

Discussion: Challenges of earth pressure balance tunnelling in weathered granite with boulders

Analysis of Seepage and Displacement Field Evolutionary Characteristics in Water Inrush Disaster Process of Karst Tunnel

Editorial

Contact Info

Product

Resources

About