Results 171 to 180 of about 145,679 (309)

The prediction of the progressive deformation mode based on active waveguide-generated acoustic emission. [PDF]

Sci Rep
Wu Z, Sun Y, Dong J, Liu B, Yu Y, Zhang L.   +5 more
europepmc   +1 more source

Random finite element analysis on ground subsidence caused by tunnel excavation in karst regions with spatial variable soil

Deep Underground Science and Engineering, EarlyView.
This study investigates ground subsidence during tunnel excavation in karst areas, highlighting the combined effects of karst cave proximity, cave size, and soil spatial variability. Findings suggest that shorter cave distances and larger cave sizes increase subsidence variability, and a modified Peck formula is proposed for more accurate subsidence ...
Zhenghong Su, Yong Fu, Miaomiao Sun, Kailin Ding, Ying Zhao   +4 more
wiley   +1 more source

Numerical investigation of soil-tunnel interaction under surface blast loads with regression-based energy correlations. [PDF]

Sci Rep
Alsabhan AH, Rais I, Ahemad Khan J, Gebremariam AS, Sadique MR, Alam S, Qadri J.   +6 more
europepmc   +1 more source

Critical expansion points: Mechanical signs of surrounding rock instability

Deep Underground Science and Engineering, EarlyView.
This study proposes the Rock Bearing‐Expansion Model (RockBEM) with critical expansion points (CEPs) to quantify post‐peak damage stages in deep‐buried rock masses via plane strain compression test (PSCT). CEP hysteresis&interval ratios reveal bearing performance dynamics and failure severity, advancing mechanistic insights into deep underground rock ...
Jiaqi Wen, Chang Deng, Haijun Wang, Lei Tang, Jihong Yu   +4 more
wiley   +1 more source

Two-stage-method-based calculation and analysis of the deformation of the existing subway tunnel caused by the diagonal crossing of the new tunnel. [PDF]

Sci Rep
Li Y, Zhao Y, Shi G, Wang X, Wu S, Yao W.   +5 more
europepmc   +1 more source

Numerical and experimental study on P‐wave propagation across a rock joint with different orientations

Deep Underground Science and Engineering, EarlyView.
Joint orientation significantly affects P‐wave velocity, with the highest velocity at zero‐degree angles, decreasing to 30° as the angle increases. The velocity increases slightly from 30 to 45 degrees but sharply decreases from 45 to 90 degrees. Abstract Determination of the required parameters in different science contexts using the ultrasonic wave ...
Yaghoob Zarei, Mojtaba D. fallahi, Ali Uromeihy, Mohammad R. Nikoodel, Mohammad Fathollahy   +4 more
wiley   +1 more source

Experimental study on the influence of synchronous grouting in shield tunneling on an upper existing tunnel in sandy soil stratum. [PDF]

Sci Rep
Huang D, Lu W, Luo W, Chen H, Yu J.
europepmc   +1 more source

Long term accumulation of deformation in granular soils under multi-axial cyclic loading: accumulation de déformation à long terme dans les sols granulaires sous chargement cyclique multi-axiale [PDF]

, 2011
Degrande, Geert, Franken, Pieter, François, Stijn, Haegeman, Wim   +3 more
core   +1 more source

Strengthening urban resilience in China through underground infrastructures management: Addressing global climate challenges with technological solutions

Deep Underground Science and Engineering, EarlyView.
This paper explores how climate‐resilient technologies, such as smart grids, digital twins, and self‐healing materials, can enhance urban resilience. It highlights the urgent need for proactive planning, public‐private collaboration, and data‐driven innovation to future‐proof underground infrastructure amid accelerating climate and urban pressures ...
Kai Chen Goh, Tonni Agustiono Kurniawan, Christia Meidiana, Abdelkader Anouzla, Faissal Aziz, Imran Ali, Joan Cecilia C. Casila, M. Imran Khan, Dongdong Zhang, Meihui Jiang, Mohd Hafiz Dzarfan Othman, Md Munir Hayet Khan, Kasun Kumara Dissanayake   +12 more
wiley   +1 more source

Analysis of the influence of new tunnel excavation on the stability of adjacent existing tunnels. [PDF]

Sci Rep
Yang M, Liu N, Li H, Hu X.
europepmc   +1 more source