Prediction of Ground Subsidence Caused by Shield Tunnel Construction Under Hidden Karst Cave

Relied on the tunnel engineering in the karst area of Dalian Metro Line 5, the indoor model test was designed and carried out based on the similarity theory. The inversion analysis was carried out through the test data. The engineering data of subway construction in coastal areas and the karst geolo...

Full description

Saved in:
Bibliographic Details
Published in:Geotechnical and geological engineering 2022-07, Vol.40 (7), p.3839-3850
Main Authors: Zhang, Jiashu, Xu, Mingyang, Cui, Minghua, Xin, Yue, Wang, Haitao, Su, Peng
Format: Article
Language:English
Subjects:
Civil Engineering
Coastal engineering
Coastal zone
Coasts
Construction
Dredging
Earth and Environmental Science
Earth Sciences
Excavation
Geology
Geotechnical Engineering & Applied Earth Sciences
Hydrogeology
Karst
Original Paper
Regression analysis
Similarity theory
Soil erosion
Subway construction
Subways
Terrestrial Pollution
Test methods
Tunnel construction
Tunneling shields
Tunnels
Waste Management/Waste Technology
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Relied on the tunnel engineering in the karst area of Dalian Metro Line 5, the indoor model test was designed and carried out based on the similarity theory. The inversion analysis was carried out through the test data. The engineering data of subway construction in coastal areas and the karst geological conditions in Dalian area were counted. The range of the width of the stratum settlement trough caused by shield tunnel construction in Dalian area was proposed. Based on the principle of similar soil loss, the linear relationship and its influence parameters between S max,0 / S max,z and (1 −  Hz / h ) were deduced. The influence of cave size and roof thickness on ground settlement was analyzed. Based on the multiple linear regression method, the prediction formula of the maximum ground settlement caused by shield excavation under the condition of hidden karst cave was established, and the applicable scope was given. Furthermore, an example was given to verify the results. The contents of this paper can provide reference for similar projects.
ISSN:0960-3182
1573-1529
DOI:10.1007/s10706-022-02136-3