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Evi Aprianti
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International Association of Lowland Technology In Collaboration with Hasanuddin University and Saga University Address Faculty of Engineering, Center of Technology Building, 1st Floor Jalan Poros Malino km. 6, Bontomarannu, Gowa Indonesia Postal Code: 91711
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Lowland Technology International
Published by International Association of Lowland Technology
ISSN : 13449656     EISSN : 21878870     DOI : https://doi.org/10.0001/ialt_lti
Core Subject : Engineering,
Civil Engineering, Building, Construction & Architecture Engineering Transportation
The Lowland Technology International Journal presents activity and research developments in Geotechnical Engineering, Water Resources Engineering, Structural Engineering, Transportation Engineering, Urban Planning, Coastal Engineering, Disaster Prevention and Mitigation Engineering.
Arjuna Subject : Teknik (semua kategori) - Teknik Sipil dan Struktur
Articles 8 Documents
 1 
Search results for , issue "Vol 6 No 2, Dec (2004)" : 8 Documents clear
WATER QUALITY MONITORING OF THE ARIAKE SEA BY REMOTE SENSING AND UTILIZATION OF FIELD OBSERVATION K. Ohgushi; H. AR; T. Y. Gan
Lowland Technology International Vol 6 No 2, Dec (2004)
Publisher : International Association of Lowland Technology

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Abstract

A remote sensing is one of the most powerful solution for estimating water quality in wide water bodies effectively. The earth observation stellites Landsat have been observing the land and ocean from space for a long time with consistent specification plus new additional technology. In this paper, a water quality in the Ariake Sea, Japan is estimated by using Landsat-TM nad ETM+ images with field observation. The models for water salinity and cholorophyll-a concentration are developed by regression analysis like the transparancy and water temperature models, and they are also validated by other observed data. In order to understand characteristic of water quality in the Ariake Sea. a continuous observation was also executed at a fixed observation tower in the bay for about five months. A GIS technique was also applied to consider spatial and seasonal characteristic of water environment of this bay.
MODIFIED HYPERBOLIC MODEL FOR CAPTURING UNDRAINED SHEAR BEHAVIOR S. Horpibulsuk; R. Rachan
Lowland Technology International Vol 6 No 2, Dec (2004)
Publisher : International Association of Lowland Technology

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Abstract

The hyperbolic and modified hyperbolic models are proposed to predict the stress-strain response of the uncemented, naturally cemented and induced cemented clays under undrained shear so as to suggest the simple analysis and assessment. The hyperbolic responses of stress ratio and shear strain as well as of effective mean principal stress and shear strain are introduced to assess the undrained shear behavior of the uncemented and naturally cemented clay. The modified hyperbolic responses are employed for the induced cemented cays. These models consist of the parameters, which control the constitutive behavior of the uncemented, naturally cemented, and induced cemented clays in undrained situation. These parameters are easily determinable from standard triaxial tests. The predicted and laboratory responses are in good agreement.
AN ASSESSMENT ON SOIL DISTURBANCE OF BANGKOK CLAY SAMPLES IN RELATION WITH THE INTRINSIC COMPRESSION BEHAVIOR P. H. Giao; N. Phien-wej; H. Tanaka
Lowland Technology International Vol 6 No 2, Dec (2004)
Publisher : International Association of Lowland Technology

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Abstract

Recent reseraches have again stirred up the soil disturbance issue and clearly indicated how significantly it could affect on soil characterization, empirical relationship between different soil parameters and, d=finally, design calculations. In this study, analyses of sample quality were carried out for a large amount of the samples taken from a coastal site near the Gulf of Thailand. The results of the study on intrinsic, compression suggested that Bangkok clay seems to be less cemented than some other clays known for being strictured like Pusan or Louseville clays. By putting this finding next to the fact that Bangkok clay has not a big thickness, one can consider that the soil disturbance of Bangkok clay would not be so critical. On the other hand, the analysis have indicated that samples collected by the procedure of wash boring and Shelby sampling tube as commonly practiced in Bangkok plain were clearly subjected to soil disturbance. Consequently, quality of Bangkok clay samples to be tested should not be taken for granted as it has been for decades, and more studies on disturbance of Bnagkok clay as well as an improvement in sampling procedure are therefore needed.
BEARING CAPACITY OF SPREAD FOUNDATIONS ON SAND OVERLYING CLAY K. Yamamoto; D. Kim
Lowland Technology International Vol 6 No 2, Dec (2004)
Publisher : International Association of Lowland Technology

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Abstract

Second, the kinematic approach of limit analysis has been used to calculate the upper bound of the true ultimate bearing capacity. The kinematic solutions are upper bounds and their accuracy depends primarily on the nature of the assumed failure mechanism. This approach makes it convenient to create design charts, and it is possible to trace the influence of parameters. Third, the commercial finite element program ABAQUS was applied to obtain the ultimate bearing capacity based on the elasto-plastic theory. Although FE anlysis has still not gained wide acceptance in foundation practice, FE analysishas the great advantages in which the equations of equilibrium and compatibility are solved together, compared with limit analysis. Finally, results obtained from the kinematic approach and the program ABAQUS were compared with those from the existing limit ewuilibrium equations proposed by Yamaguchi, Meyerhof and Okamura et al. for confirming the validity of their application to practice.
ZONAL IMPACT ASSESSMENT BASED ON ZONAL COMMUNITY PREFERENCES: AN ALTERNATIVE OF LAND DEVELOPMENT CONTROL IN DEVELOPING COUNTRIES K. Limapornwanitch; K. Teknomo; K. Hokao
Lowland Technology International Vol 6 No 2, Dec (2004)
Publisher : International Association of Lowland Technology

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Abstract

Many planners have recently utilized the Development Impact Assessment framework focuses on the site specific level, and mostly concerns only limited types of development impacts. In fact, the city growths are the results of simultaneous developments and their adverse impacts are diverse, such as economic losses and environmental degradations. These become the limitations of impact assessment to manage the actual urbanizations. We have developed a framework of Zonal Impact Assessment (ZIA) to evercome those limitations. Our framework mainly evaluates the generated impacts in each zone rather than an isolated project. The ZIA can analyze the impacts of simultaneous developments in many zones, and many kinds of impacts can be considered. Furthermore, the survey results of public participation were included to identify the sensitive areas for development impact based on the preferences of zonal communities. The Bangkapi case study was elucidated to demontrate the ZIA application concerning traffic impacts of developments. The Impact distributions were evaluated and visualized for planning process. It wa found that ZIA is an alternative tool in balancing between infrastructure demands and urban developments to reach a sustainable community.
RESIDENTIAL LIFESTYLES AND ITS RELATIONSHIP WITH RESIDENTIAL ENVIRONEMNT EVALUATION: A CASE STUDY OF SAGA CITY, JAPAN J. Ge; K. Hokao
Lowland Technology International Vol 6 No 2, Dec (2004)
Publisher : International Association of Lowland Technology

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Abstract

With the diversification of personal sense of values, as weel as the abundance of lifestyles, people's demands on residential environment are becoming more and more abundant. In this paper, by the case study of Saga City, the approaches to grasp the residential lifestyles are analyzed at first. Then, through each approach, the residential lifestyle patterns were classified, and the characteristics of each pattern were grasped. Furthermore, the relationship between residential lifestyle and residential environment evaluation are analyzed, and the suitable models for various styles were established. The results not only can be used as the rudimentary data for the improvement and development of residential environment, the mmethodology of considering residential lifestyle can also bring about a new and useful viewpoint for the further research of residential environment evaluation.
THE DSS 'PLANNING KIT' AND ITS APPLICATION IN THE SPANKRACHT* STUDY A.G. Kors
Lowland Technology International Vol 6 No 2, Dec (2004)
Publisher : International Association of Lowland Technology

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Abstract

The Netherlands is expected to face severe consequences of climate change. A rise of the average sea level with 60 cm and increase with about 20% of the extreme discharges of the rivers Rhine and Meuse might be expected ad the end of this century. This requires measures. Therefore a policy analyses has been carried out to determine which strategy could be followed to maintain the current safety satndards. In this policy analyses about three hundred spatial measures were evaluated. To support the work a Decision Support System has been developed: the Planning Kit. This article presents the Planning Kit and ilustrates working with the Planning Kit. In the Spankracht study the Planning Kit proved to be an indispensable instrument in the evaluation process.
RESEARCH FRAMEWORK ON THE SUITABLE DEVELOPMENT MODEL AND MECHANISM OF GREEN STTLEMENT IN THE YANGTZE RIVER DELTA Z. Wang; Y. He; J. Ge
Lowland Technology International Vol 6 No 2, Dec (2004)
Publisher : International Association of Lowland Technology

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Abstract

By selecting a breakthrough point from the Green Settlement of towns and cities in the Yangtze river delta, which is of great significance to the sustainable development strategy for human sttlement in China, this research tries to integrate the enduring regional "genes" of settlement, to explore the external character and internal law of the basic urban residential unit, and grasp its controlling/adjustment mechanisms. On this base, detailed goals, evaluation systems, space/form modelsand suitable technologies of sustainable development are expected to be established. Thus, the sustainable development strategy for human sttlement in that region can be promoted and serve as a guide for China as a whole.

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