Results 71 to 80 of about 31,564 (295)
Analysis of Construction Settlement of Shield Tunnel Crossing Metro Operating Tunnel
IOP Conference Series: Materials Science and Engineering, 2020 Abstract Based on the background of the Suzhou Metro Line 3 crossing the Line 1 operating tunnel, the finite element software MIDAS/GTS was used to perform 3D model and simulate the construction of the shield tunnel. The influence of shield tunnel penetration before and after strengthening on operating tunnels is studied.
Mengheng Zhang +5 more
openaire +1 more source
Financing urban transport through value capture. [PDF]
, 2010 The Green Paper on Urban Transport highlights the importance of promoting public transport as a means of achieving better sustainable mobility. Unfortunately, budget resources are often constrained. On the other hand, literature points out that transport
Mejía Dorantes, Lucía +1 more
core +1 more source
Pumping properties of the hybrid single-electron transistor in dissipative environment [PDF]
, 2009 Pumping characteristics were studied of the hybrid normal-metal/superconductor single-electron transistor embedded in a high-ohmic environment. Two 3 micrometer-long microstrip resistors of CrOx with a sum resistance R=80kOhm were placed adjacent to this
Kafanov, S. +4 more
core +2 more sources
Deep Underground Science and Engineering, EarlyView.This article aims to investigate the dynamic fracture response of fractured tunnel models under zero geological stress through physical experiments and numerical simulations. It further simulates the dynamic fracture characteristics of fractured tunnel models under geological stress ranging from 0 to 2.5 MPa using the numerical software AUTODYN ...
Peng Ying +7 more
wiley +1 more source
Deep Underground Science and Engineering, EarlyView.This study investigates the blast‐induced rock damage patterns under different cut‐hole layouts and ground stress conditions through numerical simulations and field tests. The findings in this study provide valuable insights for similar underground engineering applications.
Junjie Zhao +5 more
wiley +1 more source
The Economic Argument for Cleaning Up the Chesapeake Bay and its Rivers [PDF]
, 2012 Failure to "Save the Bay" threatens the Bay's value as an economic driver. Conversely, investing in clean-water technology creates jobs, generates economic activity, and saves money in the long run. Hence, the protection and restoration of the Chesapeake
Tom Pelton
core
Data‐driven analysis of the spatial dependence of grouting efficiency during tunnel excavation
Deep Underground Science and Engineering, EarlyView.Prediction of grouting efficiency using machine learning is enhanced by adopting a training strategy that accounts for the grouting process across multiple rounds. Abstract Grouting with water–cement mixtures is the most widely used and cost‐effective method for managing excess water inflow during tunnel construction.
Huaxin Liu, Xunchang Fei, Wei Wu
wiley +1 more source
, 2003 Choices on public transit options are choices about a city's future. Will there be congestion? Will there be high levels of air and noise pollution? Will transport be affordable? Will services be available to all?
Fjellstrom, Karl, Wright, Lloyd
core
Rockburst prediction based on data preprocessing and hyperband‐RNN‐DNN
Deep Underground Science and Engineering, EarlyView.A data preprocessing workflow is proposed to address challenges in rockburst data analysis. Coupled algorithms preprocess the data set, and hyperband optimization is used to enhance RNN performance. Results show that preprocessing improves accuracy, while dense layers enhance model stability and prediction performance.
Yong Fan +4 more
wiley +1 more source
Chengshi guidao jiaotong yanjiu[Objective] The train-induced metro tunnel vibration may affect adversely the normal life of residents along the line, the use of precision instruments, and the structural safety of ancient buildings. In order to clarify the propagation law of the entire
GUO Huiji
doaj +1 more source