Results 11 to 20 of about 871 (212)

Experimental Research on the Settlement Feature of Two Ground Deformation Modes Induced by Tunnelling

open access: yesMathematics, 2023
Two ground deformation modes, i.e., the arching mode and collapsing mode, may be caused by tunnel excavation. However, the development of the ground deformation corresponding to the two modes is unclear.
Qingtao Lin   +4 more
doaj   +1 more source

Spatial Variability of Grouting Layer of Shield Tunnel and Its Effect on Ground Settlement

open access: yesApplied Sciences, 2020
This study aims to investigate the effect of the spatial variability of grouting-layer thickness on ground-surface settlement caused by shield tunneling and to provide a rational prediction method.
Zhongzheng Wang   +2 more
doaj   +1 more source

Numerical Analysis of Factors Influencing the Ground Surface Settlement above a Cavity

open access: yesMaterials, 2022
In this study, ground stability was evaluated through vertical displacement distribution and surface settlement results. In particular, a finite element analysis was conducted considering various factors (namely, cavity type and area, traffic load, pavement thickness, and elastic modulus) that affect a road above a cavity.
Kangil Lee   +3 more
openaire   +2 more sources

Surface Subsidence over a Coastal City Using SBAS-InSAR with Sentinel-1A Data: A Case of Nansha District, China

open access: yesRemote Sensing, 2023
The loss of life and property in economically developed areas due to geological hazards caused by intense ground subsidence is incalculable. As one of the fastest growing areas in the Guangdong-Hong Kong-Macao Greater Bay Area, the study of ground ...
Huanghao Yu   +6 more
doaj   +1 more source

Prediction model and application of three-dimensional ground surface settlement induced by tunnel excavation considering time effect

open access: yes矿业科学学报, 2019
It is difficult to consider the change of settlement along with time by using stochastic medium theory in the settlement prediction process in subway construction. A new settlement-time model is proposed.
Liu Bo, Yang Weihong
doaj   +1 more source

Deformation characteristics of ground with voids induced by shallow metro tunnelling

open access: yesYantu gongcheng xuebao, 2019
The existence of the ground voids makes the ground conditions around the tunnel more complex, which may increase the ground surface settlement and even induce collapse during shallow metro tunneling.
CAI Yi 1, 2, ZHANG Cheng-ping 1,2, MIN Bo 1, 2, YANG Gong-biao 1, 2
doaj   +1 more source

The effect of suction on ground surface settlement for a tunnel [PDF]

open access: yesE3S Web of Conferences, 2019
This paper addresses the physical modelling of a tunnel for saturated and unsaturated sand as well as tests in dry condition. A series of tests were conducted for a 50 mm diameter tunnel buried 25 mm into a poorly graded fine sand under different normal stresses: 0.78, 1.56, 2.34 and 3.31 kPa.
openaire   +2 more sources

Differential Analysis and Prediction Optimization of Ground Surface Settlement Induced by Quasi-Rectangular Shield and Pipe Jacking Tunnelling

open access: yesAdvances in Civil Engineering, 2022
The shield method and pipe jacking method will impact the ground surface and surrounding settlement during tunnel construction. Due to their different tunnelling principles and their cross-section characteristics, the impact on the stratum is often ...
Xue Liu   +6 more
doaj   +1 more source

Tunnelling Induced ground settlement considering soil variability [PDF]

open access: yesInternational Journal of Mining and Geo-Engineering, 2023
Ground settlement need to be predicted well so that necessary precautionary measures could be adopted. Ground deformation behavior due to tunnel construction in inhomogeneous soil has been studied in the past few decades by many researchers.
Gouri Krishna, V B Maji
doaj   +1 more source

Research on Ground Settlement Regularity of Soft Rock Tunnel under Ultrasmall Distance

open access: yesAdvances in Civil Engineering, 2021
During the tunnel construction under the road, the shallower the tunnel depth, the greater the effect of the surface settlement. Thus, to analyze the ground settlement caused by tunnel construction under ultrasmall distance, the research is based on a ...
Chunwu Zhang   +3 more
doaj   +1 more source

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