Innovative structural engineering and execution approach to delivering modular facilities for the Gorgon Project

2014 ◽  
Vol 54 (2) ◽  
pp. 487
Author(s):  
Partha Dev ◽  
Parag Shah
Keyword(s):  
Structural Engineering ◽  
Nature Reserve ◽  
Green Light ◽  
Wind Gust ◽  
Construction Sites ◽  
Final Destination ◽  
The Past ◽  
Class A ◽  
Sea Transportation ◽  
World Class

The Gorgon Project on Barrow Island, located about 60 km from the northwest coast of Australia, was given the green light in September 2009. Construction and commissioning of the Gorgon LNG trains is limited to a 300 hectare development on a Class A reserve. Our commitment to the environment has driven our use of extensive modularisation to build the LNG trains. All of the major components have been pre-fabricated and assembled offsite into transportable parts,“ significantly reducing our footprint on the island. Subsequently the structural modules (including pre-assembled Piperacks) have undertaken a journey on a scale and complexity unmatched in the global LNG industry. The modules have been designed and built at diversely located engineering, fabrication and construction sites. These are then loaded out and sea transported from different international shipyards in more than 6. sea-transportation voyages, carrying more than 300 modules weighing more than 280,000 tonnes under constantly varying and hostile sea-faring conditions. The modules reach their final destination at Barrow Island to be installed without impacting the island’s uniquely treasured flora and fauna. These modules are designed to operate for its entire service life on cyclone-rated Barrow Island, which in the past has registered the highest ever wind gust of 408 kmph. Design and execution of the modules to sustain severe environmental conditions during its service lifecycle has been made possible by employing an innovative engineering mindset supported by robust structural methodologies to develop suitable facilities that can operate in a highly complex environment. This extended abstract showcases the structural engineering and execution methodologies that successfully overcame the challenging journey of the modules, thereby delivering a world class development co-existing with conservation in a pristine nature reserve on a very limited footprint.

HYDROGEN — ZERO CARBON FOOTPRINT

2021 ◽  
Vol 7 (1) ◽  
pp. 10-25
Author(s):  
Mikhail V. Gordin ◽  
Valery I. GUROV ◽  
Anton N. Varyukhin ◽  
Alexander V. Geliev ◽  
Elena V. SHCHERBAKOVA
Keyword(s):  
Power Systems ◽  
The Past ◽  
Long Term Storage ◽  
Strategic Direction ◽  
Pressure Region ◽  
Zero Carbon ◽  
World Class ◽  
High Pressure Region ◽  
Term Storage

This article presents Russia’s main achievements of over the past 65 years in the development of an advanced scientific and technical groundwork for the introduction of hydrogen as a fuel in various energy systems. On the basis of the obtained world-class results, the authors argue for the necessity of creating a Center for Hydrogen Innovative Development (CVIR) with the decisive participation of enterprises with real experience in obtaining liquid hydrogen (H2l) with the possibility of its long-term storage. A concept has been formulated for the development of breakthrough technological solutions for the widespread use of hydrogen as an efficient and environmentally friendly (without the formation of carbon oxides) fuel in various power systems within the framework of the CVIR. In particular, the strategic direction of the CVIR project was developed in order to create a developed infrastructure for the reliable provision of vehicles with the required amount of fuel in a limited period of time. This can be achieved by applying the method of cryogenic filling of transport cylinders, taking into account the real properties of hydrogen in the ultra-high pressure region (70 MPa and above). The results have revealed possibilities for further building up the advanced scientific and technical groundwork for the broad promotion of hydrogen in the energy complex of Russia, which is presented in the CVIR project. In addition, the authors have compared the developed technologies with foreign analogues.

Five new Lathys species (Araneae: Dictynidae) from South China and the first description of the male of Lathys spiralis Zhang, Hu & Zhang, 2012

Zootaxa ◽  
2018 ◽  
Vol 4500 (2) ◽  
pp. 151
Author(s):  
KEKE LIU ◽  
ZEYUAN MENG ◽  
YONGHONG XIAO ◽  
XIANG XU
Keyword(s):  
New Species ◽  
South China ◽  
Life Science ◽  
Nature Reserve ◽  
Jiangxi Province ◽  
Line Drawings ◽  
The Past ◽  
Animal Specimen ◽  
Science College ◽  
First Time

Dictynidae spiders were collected from Jinggang Mountain National Nature Reserve, Jiangxi Province, China in the past four years. Five new species are described and illustrated with photographs, SEMs and line drawings: Lathys adunca Liu spec. nov. (male), L. deltoidea Liu spec. nov. (female), L. fibulata Liu spec. nov. (female), L. huangyangjieensis Liu spec. nov. (male, female) and L. zhanfengi Liu spec. nov. (female). Both sexes of the species L. spiralis Zhang, Hu & Zhang, 2012 were collected from leaf litter in Jinggangshan University and the male is described for the first time. All specimens are deposited in the Animal Specimen Museum, Life Science College, at the Jinggangshan University (ASM-JGSU). 

scholarly journals Bio-based construction materials for a sustainable future

2019 ◽  
Author(s):  
Rijk Block ◽  
Barbara Kuit ◽  
Torsten Schröder ◽  
Patrick Teuffel
Keyword(s):  
Construction Industry ◽  
Structural Engineering ◽  
Building Materials ◽  
Raw Materials ◽  
Construction Materials ◽  
Flax Fibres ◽  
The Past ◽  
Natural Building ◽  
Paris Climate Agreement ◽  
Primary Materials

<p>The structural engineering community has a strong responsibility to contribute to a more efficient use of natural resources. Nowadays the construction industry is by far the most resource intense industry sector, approximately 40-50% of all primary raw materials are used, which raises the question about the architects and engineer’s accountability. In this context and as a result of the Paris Climate agreement the Dutch government defined the program “Nederland Circulair in 2050”, which states the ambition to use 50% less primary materials in 2030 and to have a full circular economy in 2050.</p><p>One possible approach to achieve these ambitious goals is the application of renewable, bio-based materials in the built environment and to replace traditional, typically cement-based, materials. Already in the past natural building materials, such as timber and bamboo have been used widely, but in recent years new materials came up and provide new opportunities to be used in the construction industry. The authors explored various alternatives, such as hemp and flax fibres, mycelium and lignin-based fibres for composite materials, which will be described with various experimental and realised case studies.</p>

scholarly journals Engineering properties of fine grained soils of Kathmandu Valley, Nepal

1996 ◽  
Vol 14 ◽  
Author(s):  
T. P. Katel ◽  
B. N. Upreti ◽  
G. S. Pokharel
Keyword(s):  
Geotechnical Properties ◽  
Engineering Properties ◽  
Soil Conditions ◽  
Kathmandu Valley ◽  
Construction Sites ◽  
Engineering Construction ◽  
Fine Grained ◽  
The Past ◽  
Shearing Resistance ◽  
Watershed Boundary

This paper primarily deals with the distribution, and engineering and geotechnical properties of fine grained soils in the Kathmandu Valley. Not much studies have been done on these soils in the past except at some engineering construction sites such as bridges and heavy buildings. Very little data are available on the engineering and geotechnical properties of soils of the valley (IOE, 1983a, 1983b, 1986a, 1986b, 1986c; Koirala et al., 1993; Sadaula, 1993; Shakya, 1987; Soil Test, 1990a, 1990b). The authors conducted detailed laboratory studies on the soils of the Thapathali and Ratnapark areas in the central part of the Kathmandu Valley and the results are presented and discussed. An attempt is also made to broadly evaluate the soil conditions of the valley based on the available data from previous studies conducted by various agencies. The soils of the Kathmandu Valley are mainly produced by weathering of rocks within its watershed boundary. They are in most part lacustrine and fluvial in origin and composed of clayey, silty, sandy and gravely sediments. The maximum thickness of the sediment is found in the central part (550 m at Bhrikutimandap) and southern part (>457m at Harishidhi) of the valley. The engineering properties, basically the index properties such as grain size, natural moisture content specific gravity, Atterberg limits; and the mechanical properties such as penetration resistance, cohesion, unconfined compressive strength, compressibility as well as angle of shearing resistance of fine grained soils were determined and found to vary considerably both in horizontal and vertical directions. The bearing capacity and settlement values of the soils were also determined. It is commonly found that most of the buildings in the Kathmandu Valley are founded on isolated or strip types of foundations and the foundation depth is between 1 and 1.5 m. The study of soil properties of the Kathmandu Valley indicates that the heavy loaded structures should be founded on either raft, mat or pile types of foundation.

scholarly journals Interrupting Gendered Discursive Practices in Classroom Talk about Texts: Easy to Think About, Difficult to Do

1997 ◽  
Vol 29 (1) ◽  
pp. 73-104 ◽  
Author(s):  
Donna E. Alvermann ◽  
Michelle Commeyras ◽  
Josephine P. Young ◽  
Sally Randall ◽  
David Hinson
Keyword(s):  
Language Arts ◽  
Content Literacy ◽  
Classroom Talk ◽  
Discursive Practices ◽  
The Past ◽  
Class A ◽  
School Based ◽  
Teacher Researchers ◽  
8Th Grade ◽  
Literacy Class

This study focused on us — a group of university — and school-based teacher researchers and observers — as we attempted to alter or interrupt certain gendered discursive practices that threatened to reproduce some of the same inequities in classroom talk about texts that we had noted in the past, but had not challenged. A feminist theoretical framework guided our use of gender as a lens for examining how particular power relations operating in our classrooms governed how students interacted in their discussions of assigned subject-matter texts. Fieldnotes, transcripts of videotaped text-based discussions, and interviews with students were collected in a graduate-level content-literacy class, a 7th-grade language arts class, and an 8th-grade language arts class. Transcripts of weekly research meetings and narrative vignettes that summarized a series of observations and interviews resulted in multiple layers of data. The findings reported from analyzing these data focus on 4 types of interactions: self-deprecating, discriminatory, and exclusionary talk; and talk that reflected our desire for teacher neutrality. Narrative analyses were used to reveal the difficulties we encountered in understanding and interpreting gendered discursive practices and the insights we gained from studying ourselves.

scholarly journals Special Issue “Digital Twin Technology in the AEC Industry”

2020 ◽  
Vol 2020 ◽  
pp. 1-18
Author(s):  
Jisong Zhang ◽  
Lihua Zhao ◽  
Guoqian Ren ◽  
Haijiang Li ◽  
Xiaofei Li
Keyword(s):  
Structural Design ◽  
Structural Engineering ◽  
Sustainable Design ◽  
Building Design ◽  
Current Situation ◽  
Special Issue ◽  
Sustainable Building ◽  
Digital Twin ◽  
The Past ◽  
The Future

Sustainable building design has become a hot topic over the past decades. Many standards, databases, and tools have been developed for achieving a sustainable building. Not until recently have the importance of structural engineering and its contribution to sustainable building design been full recognised. However, due to the highly fragmented and diversity of knowledge across building and infrastructure domains, there is a lack of approach that can address all the sustainable issues within the structural design. This paper reviews the sustainable design from the perspective of structural engineering: (1) reviewing the current situation; (2) identifying the gaps and difficulties; and (3) making recommendations for future improvements. The strategies and indicators, as well as BIM-enabled methodology, for sustainable structural design (SSD) are also discussed in a holistic way. The results of this investigation show that most of the methods are not doing well in terms of delivering a successful sustainable structural design. It is expected that the future BIM could probably provide such a platform to address these issues.

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