Results 31 to 40 of about 141,507 (255)
Journal of Advanced TransportationWhen an emergency vehicle (EV) passes through an isolated signal intersection, it is crucial to ensure the efficient passage of the EV while minimizing the negative impact on ordinary vehicles (OVs), particularly in high-traffic flow scenarios. Given the
Ke-jun Long +4 more
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Scientific Reports, 2022 The aim of this study is to improve the accuracy of response prediction and safety evaluation of blasting vibration of a deeply-buried tunnel group. For this purpose, the expression of frequency-domain and blasting vibration velocity spectra for the ...
Yi Luo +5 more
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Financing America\u27s Roads: The Past Is Prologue [PDF]
, 2005 This article provides a historical perspective of American roadway financing. It explores revenue collection and expenditures at the federal, state, and local governmental levels. Accounting practices of the Highway Trust Fund are discussed including the
Farris, M. Theodore, Gravier, Michael
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Numerical methods of geomechanics tasks solution during coal deposits’ development [PDF]
, 2016 Purpose. Generalization of numerical modeling of geomechanical processes in the vicinity of mine workings by finite elements method and making recommendations for substantiation of suitable construction and behavior of rock massif physical model ...
Bondarenko, V +4 more
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Study on fracture parameter calibration and failure characteristics of rock with hole and crack
Deep Underground Science and Engineering, EarlyView.The SIF and plastic zone equations for a single hole and crack have been derived. The model's failure state leads to the identification of four types of cracks. The plastic zone increases with increased brittleness and decreased crack length. Abstract Cracks within the surrounding rock of roadways significantly affect their stability and failure ...
Shaochi Peng, Wensong Wang
wiley +1 more source
Part Of An Answer To Melville\u27s Bartleby [PDF]
, 1962 In lieu of an abstract, below is the essay\u27s first paragraph. The land was troubled by a wind, a wind of two years\u27 strength, and it had blown with gathering force for at least that long.
O\u27Connor, Richard, C.S.B.
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Deep Underground Science and Engineering, EarlyView.The effects of grout strength and thickness on the shear behavior of bolt–grout interfaces (BGI) under constant normal stiffness conditions are investigated. Shear strength, failure modes, and acoustic emission characteristics are examined. The findings reveal that grout strength exerts a significantly greater influence on BGI shear strength and ...
Sunhao Zhang +5 more
wiley +1 more source
Toolbox of Countermeasures for Rural Two-Lane Curves, June 2012 [PDF]
, 2012 The Federal Highway Administration (FHWA) estimates that 58 percent of roadway fatalities are lane departures, while 40 percent of fatalities are single-vehicle run-off-road (SVROR) crashes.
core
Deep Underground Science and Engineering, EarlyView.A lithology identification while drilling method was developed, integrating an automated cuttings sampling system, a smart drilling rig, and an ensemble learning model. Underground trials achieved 97.42% accuracy in real‐time identification of cuttings lithology and composition, enhancing hazard management and supporting unmanned drilling technology in
Kun Li +7 more
wiley +1 more source
SensorsGround-Penetrating Radar (GPR) has demonstrated significant advantages in the non-destructive detection of road structural defects due to its speed, safety, and efficiency. This paper proposes a three-dimensional (3D) reconstruction method for GPR images,
Lutai Wang +3 more
doaj +1 more source