Results 31 to 40 of about 57,912 (306)

Geotechnical design with apparent seismic safety factors well-bellow 1 [PDF]

, 2014
The paper demonstrates that whereas often in seismic geotechnical design it is not realistically feasible to design with ample factor of safety against failure as is done in static design, an "engineering" apparent seismic factor of safety less than 1 ...
Anastasopoulos, Apostolou, Chen, Chopra, Cremer, Drosos, Evangelia Garini, Gajan, Garini, Gazetas, Gazetas, Gelagoti, George Gazetas, Gerolymos, Harden, Ioannis Anastasopoulos, Makris, Mergos, Newmark, Panagiotidou, Paolucci, Priestley, Priestley, Sarma, Shirato, Taylor, Villaverde, Zhang   +27 more
core   +3 more sources

Estimating the Elastic Settlement of Piled Foundations on Rock

International Journal of Geomechanics, 2015
AbstractThis research introduces a simple method for preliminary evaluation of the elastic settlement of piled foundations resting on rock. Despite a significant number of publications in this area, the present effort is distinguished by adopting a unique representation of rock nonhomogeneity.
Eid, Hisham T., Shehada, Abdalfatah A.
openaire   +3 more sources

Hydrologic control on natural land subsidence in the shallow coastal aquifer of the Ravenna coast, Italy [PDF]

Proceedings of the International Association of Hydrological Sciences, 2020
Multiple processes contributing to natural land subsidence in a shallow coastal aquifer near Ravenna (Italy) were identified by analysing the relationships among different data set time series (water table level, rainfall, land reclamation drainage, sea ...
M. Antonellini, B. M. S. Giambastiani, N. Greggio, L. Bonzi, L. Calabrese, P. Luciani, L. Perini, P. Severi   +7 more
doaj   +1 more source

Explanation for twin tunnelling-induced surface settlements by changes in soil stiffness on account of stress history [PDF]

, 2019
In this article, a group of representative centrifuge tests were selected for numerical modelling to explain the surface settlements induced by sequential twin tunnelling.
Divall, S., Goodey, R.J., Stallebrass, S. E., Sun, J., Taylor, R. N., Zhang, T., Zheng, G.   +6 more
core   +1 more source

Theoretical Study on Pipeline Settlement Induced by Excavation of Ultra-Shallow Buried Pilot Tunnels Based on Stochastic Media and Elastic Foundation Beams

Applied Sciences
Excavation of ultra-shallow pilot tunnels triggers surface settlement and endangers surrounding pipelines. The discontinuous settlement curve from traditional stochastic medium theory cannot be directly integrated into the foundation beam model, limiting
Caijun Liu, Yang Yang, Pu Jiang, Xing Gao, Yupeng Shen, Peng Jing   +5 more
doaj   +1 more source

Optimization Analysis of Settlement Parameters for Postgrouting Piles in Loess Area of Shaanxi, China

Advances in Civil Engineering, 2019
The settlement calculation of postgrouting piles is complex and depends on the calculation method and parameters. Static load tests were conducted to compare the settlement characteristics of nongrouting and postgrouting piles, and three vital parameters
Zhijun Zhou, Shanshan Zhu, Xiang Kong, Jiangtao Lei, Tong Liu   +4 more
doaj   +1 more source

Regional Flow Simulation in Fractured Aquifers Using Stress-Dependent Parameters [PDF]

, 2011
A model function relating effective stress to fracture permeability is developed from Hooke's law, implemented in the tensorial form of Darcy's law, and used to evaluate discharge rates and pressure distributions at regional scales.
Abaqus., Berkowitz, Brown, Cappa, COMSOL Multiphysics., Durham, Ferronato, Gangi, Glover, Hopkins, Király, Király, Li, Lombardi, Lombardi, Londe, Mayeur, Murdoch, Neuman, Rutqvist, Rutqvist, Schweisinger, Tsang, Walsh, Zace Service Ltd., Zangerl   +25 more
core   +3 more sources

Development of an FBG Sensor for Measuring Large Range and Multi-Directional Settlement

IEEE Access, 2019
In this paper, one advanced settlement sensor with the advantages of wide measurement range and multi-directional displacement measurement has been designed and fabricated based on multidisciplinary technologies, including fiber Bragg grating (FBG ...
Zhao Lu, Chengyu Hong, Yifan Zhang, Dong Su, Yanbin Fu   +4 more
doaj   +1 more source

Prediction of vertical bearing capacity of waveform micropile [PDF]

, 2019
This study proposes a predictive equation for bearing capacity considering the behaviour characteristics of a waveform micropile that can enhance the bearing capacity of a conventional micropile.
Han, J.-T., Jang, Y.-E., Kim, Byungmin, Wang, C   +3 more
core   +1 more source

Research on Influence of Shield Synchronous Grouting Parameters on Surface Deformation

Zhongwai Gonglu
In order to determine reasonable grouting parameters, control surface settlement, and reduce the risk of excessive surface settlement caused by irrational synchronous grouting parameters, this study studied the shield tunnel project between maglev T2 ...
LUO Xu, ZHANG Zhaofeng, FU Helin, CAO Guiqian, ZHAO Chuanming   +4 more
doaj   +1 more source