A Study on the Applicability of Jet Grouting for Internal Stability of Collapse Tunnel

Seok Hyun Seo; Zhen Hua Xin; Euiyoup Jung

doi:10.4028/p-cGRr9E

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Preface

Sloshing Wave Height in the Storage Tanks Constructed on Different Topography Conditions
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Importance of the Use of Amorphous Gabions in the Face of a Possible Scour on the Continental-Peru Bridge
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A Study on the Applicability of Jet Grouting for Internal Stability of Collapse Tunnel
p.17

Modelling and Control of Reflected Heat from Light Shelves in Tropical Climates
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Current Measures and Future Pathways for Achieving Carbon Neutral Building Design: A Focus on Coastal Commercial Buildings
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Thermal Environmental Monitoring of Apartment Building in Saudi Arabia
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Thermal and Natural Light Comfort Analysis of Bouça Social Housing Development in Porto, Portugal
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Simulation and Optimization of High-Rise Residential Clusters and Daylighting Environment: Focus on the Busan Coastal Region
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HomeAdvances in Science and TechnologyAdvances in Science and Technology Vol. 137A Study on the Applicability of Jet Grouting for...

A Study on the Applicability of Jet Grouting for Internal Stability of Collapse Tunnel

Abstract:

During the construction of a cross-connection tunnel a leakage occurred causing a ground subsidence and subsequent tunnel collapse. Therefore, a water level lowering operation is necessary for the restoration work. However, lowering the water level can increase the surrounding ground stress, resulting in secondary collapse of the tunnel structure and potential stability concerns. To address this issue, a study was conducted to minimize the impact of ground stress on the tunnel segments while supporting the interior of the tunnel through the application of jet grouting to form a modified structure inside the collapsed tunnel. A test was carried out to create a stronger body that could be used with a full-sized corrugated steel pipe at a location close to the site of the accident. By combining urethane with grout at a specific spraying pressure, a tight and high-strength modified body was formed within the corrugated steel pipe without causing any damage to the section.

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Info:

Periodical:

Advances in Science and Technology (Volume 137)

Pages:

17-24

DOI:

https://doi.org/10.4028/p-cGRr9E

Citation:

Cite this paper

Online since:

January 2024

Authors:

Seok Hyun Seo, Zhen Hua Xin*, Euiyoup Jung

Keywords:

Collapse Tunnel, Improved Body, Internal Stability, Jet Grouting, Segment

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* - Corresponding Author

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