Results 51 to 60 of about 106,010 (167)

The behaviour of a two-component backfilling grout used in a Tunnel-Boring Machine [PDF]

, 2011
The instantaneous filling of the annulus that is created behind the segment lining at the end of the tail during the TBM advance is an operation of paramount importance.
Borio, Luca, Peila, Daniele, Pelizza, Sebastiano   +2 more
core  

sj-pdf-2-epb-10.1177_23998083211038945 - Supplemental material for Revisiting recent findings on gated communities and racial homogeneity

, 2021
Supplemental material, sj-pdf-2-epb-10.1177_23998083211038945 for Revisiting recent findings on gated communities and racial homogeneity by Daniel S Scheller in EPB: Urban Analytics and City ...
Daniel S Scheller (11321760)
core   +1 more source

Effects of flocculants on in–situ recycling potential of waste EPB shield muck with residual foams

Soils and Foundations
The in–situ recycling technique offers a promising solution for the efficient management of the escalating volumes of waste muck or slurry generated during shield tunneling.
Yao Lu, Ming Huang, Jim S. Shiau, Fengwen Lai, Liqian Peng   +4 more
doaj   +1 more source

Simplified Analytical Method for Predicting the Lateral Ground Displacements due to Shield Tunnelling

Advances in Civil Engineering, 2021
Earth pressure balance or slurry shield tunnelling will squeeze the subsoils and lead to lateral outward ground displacement. However, current methods to estimate the shield tunnelling-induced ground displacements generally use the methods based on the ...
Lianwei Sun, Zhong-chao Li, Rong-zhu Liang   +2 more
doaj   +1 more source

Longitudinal Variability of Pre‐Midnight Equatorial Plasma Bubbles Under Disturbed Geomagnetic Conditions

Journal of Geophysical Research: Space Physics, Volume 131, Issue 1, January 2026.
Abstract Equatorial plasma bubbles (EPBs) pose significant challenges to trans‐ionospheric radio communication and navigation systems. Because of their disruptive effects, evaluating and predicting them is key for the development of space systems. The influence of geomagnetic activity on EPBs remains unclear, partly due to limited low‐latitude neutral ...
Gilda de Lourdes González, Thomas J. Immel, Yen‐Jung Wu, L. Claire Gasque, Brian J. Harding, Colin Triplett, Cesar E. Valladares   +6 more
wiley   +1 more source

sj-pdf-1-epb-10.1177_23998083211065767 – Supplemental Material for Detecting shifts in metropolitan structure: A spatial network perspective

, 2022
Supplemental Material, sj-pdf-1-epb-10.1177_23998083211065767 for Detecting shifts in metropolitan structure: A spatial network perspective by Harry Odell, Eva M Navarro-López, Nuno Pinto and Iain Deas in Environment and Planning B: Urban Analytics and ...
Nuno Pinto (4739826), Harry Odell (12200213), Eva María Navarro-López (12200216), Iain Deas (12200219)   +3 more
core   +1 more source

Risk Mitigation and Construction Control for Effective Underwater Recovery of an EPB Shield: A Case Study of the First Metro Tunnel in Tel Aviv

Advances in Civil Engineering, 2020
Shield recovery in water-rich sand strata is a challenging issue in the field of shield tunnel engineering, especially when the end of the shaft cannot be reinforced by jet grouting or freezing or when the shield cannot be supported with a steel sleeve ...
Weiqiang Qi, Zhiyong Yang, Yusheng Jiang, Zhiyong Liu, Yinxin Guo, Xing Yang   +5 more
doaj   +1 more source

Prediction method of shield tunneling parameters in pebble stratum formed by weathered granite and quartzite

Frontiers in Earth Science, 2023
The pebble formation formed by weathered quartzite and granite is usually of high strength, strong permeability and poor self stability, which brings great difficulties to shield tunneling.
Meiyan Wang, Meiyan Wang, Dajun Zhao, Yan Lv, Wei Wang, Xing Wang   +5 more
doaj   +1 more source

Freshly Generated Super Sunrise Plasma Bubbles During the Geomagnetic Storm on November 5–6, 2023

Space Weather, Volume 24, Issue 1, January 2026.
Abstract During the geomagnetic storm on November 5–6, 2023, freshly generated super sunrise equatorial plasma bubbles (EPBs) and associated irregularities over the 80°–140°E sector were observed combining ground‐based and space observations from GNSS, ionosondes, HF Doppler records, and several satellite missions (COSMIC2, Swarm, and DMSP).
Ke Li, Donghe Zhang, Yaoyu Tian, Yi Zeng, Guanglin Yang, Xiukuan Zhao, Guozhu Li, Yongqiang Hao   +7 more
wiley   +1 more source

Laboratory Investigation on Excavation Performance of Foam-conditioned Weathered Granite Soil for EPB Shield Tunnelling

, 2023
As weathered granite soils are extensively distributed in the Korean Peninsula, determining the optimal foam conditioning parameters for weathered granite soils can provide a high workability, low permeability, and high compressibility of weathered ...
Hyobum Lee, Jaehyun Oh, Young Jin Shin, Jongmuk Won   +3 more
core   +1 more source