Results 81 to 90 of about 29,969 (311)

Study on the Mechanical Response of FSP-IV Steel Sheet Pile Cofferdam and the Collaborative Mechanism of Sediment Control Technology in the Nenjiang Water Intake Project

open access: yesBuildings
In response to the dual challenges of the mechanical behavior of steel sheet pile cofferdam and sediment control in urban water intake projects, a multi-method integrated study was conducted based on the Nenjiang Project.
Ziguang Zhang   +4 more
doaj   +1 more source

Effect of diaphragm wall on earthquake responses of an underground subway station

open access: yesYantu gongcheng xuebao, 2017
At present, the diaphragm wall is always used as the partial side wall of the underground subway station. However, the diaphragm wall is always neglected in the seismic design of an underground structure for that it is looked as a reserved safety for its
WANG Xue-jian 1, ZHUANG Hai-yang 1,2, CHEN Guo-xing 1, WANG Rui 1
doaj   +1 more source

Seismic response analysis of long shield tunnels under non-uniform excitation

open access: yesYantu gongcheng xuebao, 2020
The numerical simulation method is used to study the seismic response of the soil-tunnel system under non-uniform excitation. The aim is to explore the response laws of the underground structures under non-uniform excitation and its difference with those
WANG Guo-bo 1, 2, BA Feng1, SUN Fu-xue 2, YUAN Ming-zhi 1, HAO Peng-fei 1
doaj   +1 more source

Vibration Characteristics of Underground Structure and Surrounding Soil Underneath High Speed Railway Based on Field Vibration Tests

open access: yes, 2018
A series of field vibration tests were carried out at an underground metro station underneath the high speed railway by installing accelerometers both on the side wall of the metro station and in the surrounding soil. Within the frequency domain of 0–200 
Fengshou Zhang, Biao Zhou, Xiongyao Xie
core   +1 more source

Mechanical Response Analysis of Semi-Detached Movable Roof and Optimization of Subrail Foundation Reinforcement

open access: yesBuildings
Ground-based movable roof construction offers advantages such as flexible adjustment, energy conservation, environmental protection, improved comfort, structural stability, and high space utilization.
Ziguang Zhang   +4 more
doaj   +1 more source

Numerical Simulation of Shield Tunnel Passing Through Underground Structure

open access: yes, 2011
Shield tunneling is often adopted in underground engineering such as civil tunnel construction and mine excavation. The program FLAC3D is used to simulate the process of the tunnel excavation through underground structure in Shenyang in this paper.
Ke Neng Zhang   +3 more
core   +1 more source

Study on the evolution law of physical mechanics and abrasion characteristics of granite under high temperature-water cooling treatment

open access: yesCase Studies in Thermal Engineering
During deep geothermal resource development, the estimation of drilling efficiency and tool wear in extremely hard rocks relies primarily on CAI testing.
Xiangwei Li   +4 more
doaj   +1 more source

The Analysis of the Tunnel with the Middle Soil-Based Wall

open access: yesTransactions of the VŠB: Technical University of Ostrava, Civil Engineering Series, 2016
The methods for analysis of the ferroconcrete construction for a particular case are proposed in the present work. The underground construction is considered and analyzed as a double-drift frame situated on linearly-deformed basis.
Kikava Temuri R.
doaj   +1 more source

Dynamic response of a flexible rectangular underground structure in sand: centrifuge modeling

open access: yes, 2015
Major earthquakes such as Kobe (1995), Kocaeli (1999) and Chi-Chi (Taiwan) have shown that underground structures have suffered significant damage due to dynamic loading.
ÜLGEN, DENİZ   +2 more
core   +1 more source

A New Paradigm for Understanding the Rheology and Processability of Poly(p‐Phenylene Terephthalamide) Liquid‐Crystalline Solutions

open access: yesJournal of Applied Polymer Science, EarlyView.
Kevlar is traditionally modeled as a rigid‐rod polymer, yet rheological behavior deviates from this assumption. The review introduces a novel “twist‐tie” entanglement theory for aramid polymer chains in the nematic liquid crystal state, providing a molecular explanation for deviations from rigid‐rod models. Understanding twist‐tie entanglement dynamics
Emma Egli   +3 more
wiley   +1 more source

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