scholarly journals The Role of Fault‐Zone Architectural Elements on Pore Pressure Propagation and Induced Seismicity

Ground Water ◽  
2018 ◽  
Vol 57 (3) ◽  
pp. 465-478 ◽  
Author(s):  
John P. Ortiz ◽  
Mark A. Person ◽  
Peter S. Mozley ◽  
James P. Evans ◽  
Susan L. Bilek
Keyword(s):  
Pore Pressure ◽  
Fault Zone ◽  
Induced Seismicity ◽  
Architectural Elements ◽  
Pressure Propagation

Landslide Stability: Role of Rainfall-Induced, Laterally Propagating, Pore-Pressure Waves

2011 ◽  
Vol 17 (4) ◽  
pp. 315-335 ◽  
Author(s):  
G. R. PRIEST ◽  
W. H. SCHULZ ◽  
W. L. ELLIS ◽  
J. A. ALLAN ◽  
A. R. NIEM ◽  
...  
Keyword(s):  
Pore Pressure ◽  
Pressure Waves ◽  
Landslide Stability

EFFECTS OF CLIMATE ON THE ARCHITECTURAL AND URBAN DESIGN OF TRIPOLI

2021 ◽  
Vol 3 (4) ◽  
pp. 295-311
Author(s):  
AbuRawi Mustafa ALMARKIYAH ◽  
Fouziya Alzarqani Ipraheem FADHLULLAH
Keyword(s):  
Urban Design ◽  
Architectural Design ◽  
Building Design ◽  
Active Role ◽  
Motion Path ◽  
Qualitative And Quantitative ◽  
Architectural Elements ◽  
Study Case ◽  
The City

Tripoli is a city of a Mediterranean Sea climate; this has contributed with some social and religious factors to affect the architectural and urban design, which all originally has come from the Islamic content. This study argues the climatic features of Tripoli in order to show the ways followed by the Libyan Muslim architect. In other words, these ways were used to adapt with the climate and create the demanding architectural treatments, which have served the building units. This is considered as a study case that can discuss the possibility of the climatic reflection on the walls. That is to say, the walls’ thickness, the type of the used substance in building, the substance’s properties, the type of roof used in covering the building units and the architectural design of the building as treatments achieved professionally by the architect in decreasing the heat in summer and increasing the heat in winter through the mass block. Additionally, the researchers have stated that Tripoli’s building design respected the privacy of the inhabitants and their isolation from the world outside their buildings. That is because they wanted to have their own cold spaces inside which were rich of light, air and shadow. As a result of the aforementioned considerations, the architectural buildings contained the uncovered space and the broken entrance to keep the privacy from the passengers and to protect the inhabitants from wind and sand. These were regarded as final solutions for the architectural and climatic problem. Further, this study illustrates the active role of using the planning including the architectural formations and the treatments of motion path. That is according to their width, their length, their form, their guidance and their direction change in order to make shadow and isolate the front of buildings. This also contributed to give the streets the northern wind which in turn helped to keep the air moving as long as possible to tone down the climatic influences. Moreover, the planning aimed to show its turn through analytical, architectural and documentary survey for realistic examples in the archeological registrar of the potential city treatments. These architectural elements were important in making the sustainable architecture in respect to the environment and human relaxation requirements. Finally, the researchers measured the following factors temperatures, wind, rain, and ratio humidity for variety of spaces in the city. That was followed by qualitative and quantitative statistical analysis supported by graphs

scholarly journals Playing with Fire: Analysing the Role of Fire in Architecture

2021 ◽  
Author(s):  
◽  
Joanita Goei
Keyword(s):  
Case Studies ◽  
Modern Science ◽  
Living Organism ◽  
Architectural Elements ◽  
Greco Roman ◽  
Architectural Element ◽  
Contemporary Architecture ◽  
Basic Level ◽  
Living Being

<p>This research addresses the four inherent themes within fire. Fire has an association with myth due to its complexity in nature and existence long before modern science. Even today these myths live on as a way to describe the characteristics of fire as an architectural element. Bachelard’s book The Psychoanalysis of Fire looks at how fire connects with our primitive self through reverie. Fire’s contemplative character allows us to escape the surrounding world, and transport us to a kind of subconscious level. An extension of the reverie of fire is fire’s relation to the primitive. Although we have evolved into advance species, at a basic level we are all still animals. There are certain primal needs inherent within us such as sense of safety and community. Fire fulfils these needs architecturally by providing the setting for ‘primitive experiences.’ The last theme I will look at has to do with fire’s association with living beings. Even though fire is not scientifically a living organism, it is often compared to a living being due to its complexity in character. Moreover, it often symbolises life in many levels of society such as the civic hearth during the Greco-Roman era. Several case studies are looked at to see the application of the ideas represented within the themes of fire. A range of contemporary architecture is chosen to show how the ideals associated with fire are still applicable in architecture even today. In the case studies fire has either been excluded physically but present symbolically, or its presence has been reduced to the bare minimum. The case studies aim to show how fire can be addressed architecturally using other architectural elements that are traditionally associated with fire, such as chimneys and hearth. Due to current issues such as sustainability, having fire physically within a space is becoming more difficult. Many places around the world have banned open fires. An option to continue celebrating fire within architecture is through the symbolic representation of the element. This can be done by using other architectural elements that we traditionally associate with fire ...</p>

scholarly journals The use of ceramics as an aesthetic element in Durban architecture (1914-2012)

2013 ◽  
Author(s):  
◽  
Raksha Padaruth
Keyword(s):  
Historical Background ◽  
Art Practice ◽  
Local Identity ◽  
Architectural Elements ◽  
Architectural Element ◽  
Wide Range ◽  
Research Questions ◽  
Contemporary Practice ◽  
Insight Into

This paper documents and evaluates the use of ceramics as an aesthetic architectural element in Durban from 1914-2012 with special reference to James Hall (1916-2006), Andrew Walford (b.1942) and Jane du Rand (b.1969). These artists were selected because their work demonstrates a wide range of the use of decorative tiles and mosaics as aesthetic elements in Durban architecture over a period of more than fifty years. Reference is made to the historical use of tiles and mosaics as aesthetic architectural elements in Durban from 1914-1955 in order to provide a context to an investigation and evaluation of the contribution of Hall, Walford and du Rand to the use of tiles and mosaics as an aesthetic architectural element in Durban. The paper begins by highlighting the importance of this study, discusses the role of ceramic architectural adornment and defines terminology for the purpose of this research. In addition an explanation of the research methodology used, research questions and literature review is provided. The study is contextualised through an overview of the historical background of the use of ceramics (tiles and mosaics) as an aesthetic element in architecture. The importance of the use of ceramic elements in relation to architecture, as well as the different techniques and methods of production, are highlighted and related to contemporary practice. The overview provides insight into how the use of ceramic elements in the past has influenced the approach of contemporary practice. My contribution to the use of mosaics as an aesthetic architectural element in Durban and my art practice, in the form of an installation titled passage is discussed and evaluated. The paper concludes by noting that the historical use of tiles and mosaics as aesthetic elements in architecture persists in contemporary art practice. However, the methods of tiled mosaic production and tiled mosaic techniques have been revolutionised extensively. It is evident that, the use of ceramics as an aesthetic element in Durban architecture reflects, both a strong European design influence and a distinctive local identity.

Porosity trends in the Skagerrak Formation, Central Graben, United Kingdom Continental Shelf: The role of compaction and pore pressure history

AAPG Bulletin ◽  
2014 ◽  
Vol 98 (6) ◽  
pp. 1111-1143 ◽  
Author(s):  
Neil T. Grant ◽  
Alexander J. Middleton ◽  
Stuart Archer
Keyword(s):  
United Kingdom ◽  
Continental Shelf ◽  
Pore Pressure ◽  
Pressure History

Comprehensive Characterization and Mitigation of Hydraulic Fracturing-Induced Seismicity in Fox Creek, Alberta

SPE Journal ◽  
2021 ◽  
pp. 1-12
Author(s):  
Gang Hui ◽  
Shengnan Chen ◽  
Zhangxin Chen ◽  
Fei Gu ◽  
Mathab Ghoroori ◽  
...  
Keyword(s):  
Spatial Distribution ◽  
Hydraulic Fracturing ◽  
Pore Pressure ◽  
Hydraulic Fracture ◽  
Induced Seismicity ◽  
Mitigation Strategy ◽  
Moment Magnitude ◽  
Induced Earthquakes ◽  
Data Set ◽  
Comprehensive Characterization

Summary The relationships among formation properties, fracturing operations, and induced earthquakes nucleated at distinctive moments and positions remain unclear. In this study, a complete data set on formations, seismicity, and fracturing treatments is collected in Fox Creek, Alberta, Canada. The data set is then used to characterize the induced seismicity and evaluate its susceptibility toward fracturing stimulations via integration of geology, geomechanics, and hydrology. Five mechanisms are identified to account for spatiotemporal activation of the nearby faults in Fox Creek, where all major events [with a moment magnitude (Mw) greater than 2.5] are caused by the increase in pore pressure and poroelastic stress during the fracturing operation. In addition, an integrated geological index (IGI) and a combined geomechanical index (CGI) are first proposed to indicate seismicity susceptibility, which is consistent with the spatial distribution of induced earthquakes. Finally, mitigation strategy results suggest that enlarging a hydraulic fracture-fault distance and decreasing a fracturing job size can reduce the risk of potential seismic activities.

Two types of reservoir-induced seismicity

1988 ◽  
Vol 78 (6) ◽  
pp. 2025-2040
Author(s):  
D.W. Simpson ◽  
W.S. Leith ◽  
C.H. Scholz
Keyword(s):  
Normal Stress ◽  
Pore Pressure ◽  
Induced Seismicity ◽  
Elastic Stress ◽  
Pore Space ◽  
Temporal Distribution ◽  
The Other ◽  
Elastic Response ◽  
Reservoir Induced Seismicity ◽  
Effective Normal Stress

Abstract The temporal distribution of induced seismicity following the filling of large reservoirs shows two types of response. At some reservoirs, seismicity begins almost immediately following the first filling of the reservoir. At others, pronounced increases in seismicity are not observed until a number of seasonal filling cycles have passed. These differences in response may correspond to two fundamental mechanisms by which a reservoir can modify the strength of the crust—one related to rapid increases in elastic stress due to the load of the reservoir and the other to the more gradual diffusion of water from the reservoir to hypocentral depths. Decreased strength can arise from changes in either elastic stress (decreased normal stress or increased shear stress) or from decreased effective normal stress due to increased pore pressure. Pore pressure at hypocentral depths can rise rapidly, from a coupled elastic response due to compaction of pore space, or more slowly, with the diffusion of water from the surface.

A regularized continuum model for fault zones with rate and state friction

2021 ◽  
Author(s):  
Mohsen Goudarzi ◽  
René de Borst ◽  
Taras Gerya ◽  
Meng Li ◽  
van Dinther Ylona
Keyword(s):  
Numerical Model ◽  
Fault Zone ◽  
Induced Seismicity ◽  
Subduction Zones ◽  
Bulk Material ◽  
Fault Zones ◽  
Length Scale ◽  
Internal Length ◽  
Internal Length Scale ◽  
Earthquake Sequences

&lt;p&gt;Accurate representation of fault zones is important in many applications in Earth sciences, including natural and induced seismicity. The framework developed here can efficiently model fault zone localization, evolution, and spontaneous fully dynamic earthquake sequences in a continuum plasticity framework. The geometrical features of the faults are incorporated into a regularized continuum framework, while the response of the fault zone is governed by a rate and state-dependent friction. Although a continuum plasticity model is advantageous to discrete approaches in representing evolving, unknown, or arbitrarily positioned faults, it is known that either non-associated plasticity or strain-softening can lead to mesh sensitivity of the numerical results in absence of an internal length scale. A common way to regularize the numerical model and introduce an internal length scale is by the adoption of a Kelvin-type visco-plasticity element. The visco-plastic rheological behavior for the bulk material is implemented along with a return-mapping algorithm for accurate stress and strain evolution. High slip rates (in the order of 1 m/s) are captured through numerical examples of a predefined strike-slip fault zone, where a detailed comparison with a reference discrete fault model is presented. Additionally, the regularization effect of the Kelvin viscosity parameter is studied on the fault slip velocity for a growing fault zone due to an initial material imperfection. &amp;#160;The model is consistently linearized leading to quadratic convergence of the Newton solver. Although the proposed framework is a step towards the modeling of earthquake sequences for induced seismicity applications, the numerical model is general and can be applied to all tectonic settings including subduction zones.&lt;/p&gt;&lt;div&gt; &lt;div&gt; &lt;div&gt;&amp;#160;&lt;/div&gt; &lt;div&gt; &lt;div&gt; &lt;div&gt;&amp;#160;&lt;/div&gt; &lt;div&gt; &lt;p&gt;&amp;#160;&lt;/p&gt; &lt;p&gt;&amp;#160;&lt;/p&gt; &lt;/div&gt; &lt;/div&gt; &lt;/div&gt; &lt;/div&gt; &lt;/div&gt;

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