Results 61 to 70 of about 21,312 (304)
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 +4 more
wiley +1 more source
Passive control of structures for seismic loads
Bulletin of the New Zealand Society for Earthquake Engineering, 2000 The control of structures to improve their performance during earthquakes was first proposed more than a century ago. But it has only been in the last 25 years that structures have been successfully designed and built using earthquake protective systems. Today these systems range from simple passive devices to fully active systems.
openaire +2 more sources
Deep Underground Science and Engineering, EarlyView.Seismic waves with tensile stress, high amplitude, and low frequency are most likely to trigger block instability and sliding. Blocks with a single sliding surface are more prone to movement than those with multiple constraints, and roof‐positioned blocks are especially vulnerable to slide.
Xiao Wang +4 more
wiley +1 more source
MODELLING OF CRYOGENIC STRUCTURE UNDER SEISMIC LOADING [PDF]
Statyba, 1995 Santrauka Nagrinėjamas kriogeninio įrenginio seisminės analizės uždavinys baigtinių elementų metodu. Kriogeninį įrenginį sudaro erdvinis rėmas su lakstinio plieno apvalkalu. Pateikiami du seisminio modeliavimo uždaviniai. Pirmajame uždavinyje pateikiamas toks seisminės analizės maternatinis modelis, kuris įvertina seisminį procesą laike.
Kačianauskas, R., Kutas, R.
openaire +1 more source
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 +12 more
wiley +1 more source
Evaluation of Seismic Load of the Medieval Mine Jeroným, Czech Republic [PDF]
Acta Montanistica Slovaca, 2003 The medieval mine Jeroným located in the western part of the Czech Republic has been arranged among historical monuments of the Czech Republic. At present, geotechnical and seismological studies are performed to evaluate conditions for preparing this ...
Kaláb Zdenìk
doaj
Mağallaẗ Al-kūfaẗ Al-handasiyyaẗ, 2020 In this paper, the finite element ANSYS software was used to study the seismic behavior of cylindrical fuel storage tanks in west of Basra governorate.
Abdulameer Q. Hasan
doaj +1 more source
Influence of earthquakes on the stress and strain state of the shallow tunnel structures in saturated soil of low bearing capacity [PDF]
Facta Universitatis. Series: Architecture and Civil Engineering, 2008 The paper presents deformations of tunnel structures under the influence of earthquakes. The seismic impact on shallow laid tunnels in saturated soil of low bearing capacity was considered through the analysis of longitudinal and transversal loads ...
Zlatanović Elefterija
doaj +1 more source
Deep Underground Science and Engineering, EarlyView.B1 is bord width 1, B2 is bord width 2, L is the pillar length, W is the pillar width, red color and letter A represent the pillars, and white color and number 1 represent excavated areas. Pstress is the average pillar stress; σv is the vertical component of the virgin stress, MPa; and e is the areal extraction ratio. e = B o B o + B P ${\rm{e}}=\frac{{
Tawanda Zvarivadza +4 more
wiley +1 more source
Semesta Teknika, 2016 Time history dynamic analysis is the most accurate method in seismic load calculation, but it is quite complicated and time consuming. For practical need in the field, it used the equivalent static analysis that is the simplified dynamic analysis.
Restu Faizah
doaj