Engineering geological case study of the site investigation and design of a major trunk road cutting in Carboniferous rocks

1978 ◽  
Vol 11 (2) ◽  
pp. 161-176 ◽  
Author(s):  
D. S Buist ◽  
A. D. Burnett ◽  
M. K. Sanders
ce/papers ◽  
2018 ◽  
Vol 2 (2-3) ◽  
pp. 439-444
Author(s):  
Peter FREITAG ◽  
Eugen MARTAC ◽  
Thomas REICHENAUER

Author(s):  
A. Buda ◽  
S. Mauri

<p><strong>Abstract.</strong> Historic buildings are fragile systems to be managed and protected during time: in the task of heritage restoration, efficiency improvement interventions should enable a more sustainable building conservation and use. Such measures might be defined within the combination of building survey and energy performance simulation. A good knowledge of materials and physics characteristics is fundamental to weigh correctly any improvement intervention. This can be supported also by documentary research and diagnostics, to detect existing resources and conservation issues. However, how to match all collected qualitative and quantitative data with a building energy model is still an open question. Energy simulation alone gives a partial vision of heritage needs, excluding information which do not affect the thermal performance of the model; on the contrary, a whole building approach is necessary for defining restoration interventions. With the aim of suggesting a methodology to combine both fields of investigation, a case study has been chosen to our purpose: Giuseppe Terragni’s Casa del Fascio (1936). A multidisciplinary process with the combination of building survey, monitoring campaign, on-site investigation and energy modelling has been functional to the understanding of the real building needs and the definition of interventions. Furthermore, the analysis has given to the rediscover of Terragni’s microclimatic control system (not more existing), leading to the choice of reinventing - in a modern way – the existing devices (as curtains), well-balanced on building needs.</p>


2014 ◽  
Vol 17 (3) ◽  
pp. 54-61
Author(s):  
Chung Le Thuy Kieu ◽  
Ha Thi San Phan ◽  
Son Minh Le

One of the major tasks in geotechnical investigation is the stratigraphy distribution and the physico-mechanical properties of strata encountered in the investigation area. In order to reduce the project risks associated with uncertainties in predicting the distribution of strata (in area and in depth), a geotechnical investigation plan is usually designed with as many as possible of the boreholes. And this, in turn, increases the investigation costs. On the contrary, the owner of the project is expected to gather as much information about the subsurface soils as possible at the lowest cost. To deal with this contradiction, geotechnical engineers not only mobilize their knowledge on the investigation area and their experiences in the field of geotechnical investigation but also should be supported by geostatistical tools, especially the interpolation method of Kriging. Based on the real data taken from a geotechnical investigation project in Saigon (Vietnam), this paper will introduce two geotechnical investigation plans: a) an actual investigation plan; b) an optimized investigation plan designed with the support of Kriging method. From these two plans, the ability of Kriging in optimization of geotechnical investigation will be evaluated.


Author(s):  
Y.-N. Lin ◽  
C. Yang ◽  
Y.-H. Ye ◽  
Z.-R. Zhang

Abstract. Cultural landscapes are the result of the interactions between cultural and natural features over time. Historic research and site investigation are two conventional methods for identifying the transformation of cultural landscapes. Over the past few decades, with the massive development of computer and internet, technologies such as aerial photogrammetry, GPS and GIS provide new approaches for the study of landscape transformation. The aim of this research is to investigate and present the transformation of a cultural landscape using aerial photogrammetry and geo-database. Kuliang in Fuzhou, a former foreigners’ summer resort established by missionaries in 1886, was used as an instrumental case study. This research has identified historical mountain trails by superimposing historical maps and GPS-recorded tracks. Historic sites were found through a comparison of historical photos and low-altitude drone images. Drone-based orthophotos of the sites provide significant evidence for the restoration of the historical buildings. Furthermore, based on the integration of multiple sources of data in a geo-database, this research reveals Kuliang’s landscape patterns and their transformation over time. The conclusion shows that the use of aerial photogrammetry and geo-database can effectively integrate fragmented cultural landscape information, and identify the transformation of cultural landscape patterns, thereby providing significant references for landscape heritage restoration and sustainable development.


1988 ◽  
Vol 19 (1-2) ◽  
pp. 7-12
Author(s):  
Fitian R. Al-Rawi ◽  
Dawood S. Mahmood

2007 ◽  
Author(s):  
Mario L. Rainone ◽  
Patrizio Torrese ◽  
Raffaele Madonna

2016 ◽  
Vol 16 ◽  
pp. 82-90
Author(s):  
M. Dasuki Yusoff ◽  
Meng Hee Lim ◽  
M. Rabai Yahaya ◽  
Jamaludin Azman

Reliability of centrifugal pump is considered as a main indicator to measure the capability of the pump in performing its operating envelop delivery without any premature failure. Flow induced vibration namely vane passing pressure pulsation is inherent when interaction between impeller vane wakes passes the casing volute leading edge. However, excessive excitation of hydraulic pulsation might expense the pump integrity in term of unsatisfactory unit availability, frequent equipment breakdown and high maintenance recovery cost. This paper shares a case study experienced by the authors in resolving a long outstanding reliability issue for a high energy double volute centrifugal pump through combination of rotating-stationary exit geometry modification towards an acceptable hydraulic pulsation and stable operating pump. This paper also highlights the balanced approach on the site investigation, root cause analysis and practical remedial action through industrial experiential knowledge.


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