scholarly journals Assessing the Financial Feasibility of Slope Protection Through the use of Geocell With Recomposed of Infertile

Author(s):  
Dário Etsuro Haji Júnior ◽  
Estephison Montagnini e Silva ◽  
Igor Bezerra de Lima ◽  
David Barbosa de Alencar ◽  
Camily Murrieta Vasconcelos Oliveira Bezerra

Soils that have small load capacity need to have their mechanical characteristics improved in order to portray parameters that provide safety to the desired works. The geocells were developed to obtain a cellular confinement system used for reinforcement, protection and coating of slopes, similar to a beehive, which can be filled with soil, granular materials or concrete. However, the present work presents economic viability methods between the projected concrete and the geotextile. With the methodology, it was considered that the alternative use of geocell promoted savings of 35% compared to the projected concrete. The results indicated by tables that compose the projected concrete coatings and geocells were made available by the executing company. Finally, the method was applied to the soil-cement satisfactorily serving the execution, mechanical and economic aspects.

2018 ◽  
Vol 15 (1) ◽  
Author(s):  
Alane Bessa Gualberto ◽  
Izabel Christina d'Almeida Duarte de Azevedo ◽  
Renan Monteiro Rodrigues Pereira

RESUMO: Os impactos ambientais, sociais e econômicos ocasionados pelos resíduos da construção civil (RCC) e sua inadequada disposição no ambiente, impõem a necessidade da adoção de soluções eficazes para a correta gestão desses resíduos. Neste trabalho, procurou-se avaliar a viabilidade de utilização de agregados reciclados de RCC classe A na construção de um pátio de compostagem piloto. Para isto, compararam-se seu desempenho e custo com pátios executados com concreto tradicional e solo-cimento. Os agregados reciclados foram analisados quanto às suas características físicas, químicas e mecânicas. Foram avaliados os parâmetros determinantes do processo de compostagem, a fim de averiguar possíveis influências dos agregados reciclados na degradação da matéria orgânica. O pátio com agregados reciclados quanto à estanqueidade e resistência mecânica não se mostrou adequado. O pátio executado com solo-cimento apresentou desempenho satisfatório. Quanto aos custos, a adoção de agregados reciclados proporcionou uma redução de 18,68% nos valores de implantação, comparado a um pátio em concreto tradicional, podendo representar uma economia significativa na obra de uma usina de triagem e compostagem. Porém, em relação ao pátio em solo-cimento, o pátio com agregados reciclados apresentou menor viabilidade econômica, visto que seu custo superou em 17,77% o do pátio em solo-cimento. Deste modo, identificaram-se os aspectos dos agregados reciclados que necessitam de melhoria para que estes se firmem como uma alternativa econômica e ambientalmente viável.ABSTRACT: The environmental, social and economic impacts caused by construction waste (CCW) and its inadequate disposal in the environment, require the adoption of effective solutions for the correct management of this waste. In this paper was try to evaluate the feasibility of using recycled aggregates of CCW class A in the construction of a pilot composting yard. For this, their performance and cost were compared with patios executed with traditional concrete and soil-cement. The recycled aggregates were analyzed for their physical, chemical and mechanical characteristics. The parameters determining the composting process were evaluated in order to investigate possible influences of the recycled aggregates on the degradation of organic matter. The yard with recycled aggregates for watertightness and mechanical resistance was not adequate. The yard with soil-cement presented satisfactory performance. In terms of costs, the adoption of recycled aggregates resulted in a 18.68% reduction in deployment values, compared to a traditional concrete yard, wich could represent a significant saving in the work of setting up a sorting and composting plant. However, in relation to the yard in soil-cement, the yard with recycled aggregates presented less economic viability, since its cost exceeded in 17.77% the patio in soil-cement. Thus, the aspects of the recycled aggregates that need improvement have been identified, so that these become an economical and environmentally viable alternative.


AGROINTEK ◽  
2019 ◽  
Vol 13 (1) ◽  
pp. 10 ◽  
Author(s):  
M. Adhi Prasnowo ◽  
Shafiq Nurdin ◽  
Ahlan Ahlan

Batu City is a tourist destination for domestic and foreign tourists because it have variety of tourist destinations that have been managed properly. The development of tourist destinations that increases rapidly, making the businessmen souvenirs typical of Batu City growing. It is also felt by potato chips entrepreneurs, who are experiencing increased demand. But entrepreneurs increasingly difficult to increase the amount of productivity, because the technology used to produce potato chips is still simple. So that can not meet the needs of a very high market. This study aims to determine the economic viability of potato chips dryer. The method used in this research is Net Present Value (NPV) and Internal Rate of Return (IRR). Based on the financial feasibility analysis of potato chips dryer machine using electric energy is feasible to be implemented because the value of NPV is greater than zero which is IDR. 5.233.433 and IRR value 22% greater than the current interest rate of 12% with the project period of 5 years.


2021 ◽  
Vol 273 ◽  
pp. 09002
Author(s):  
Lyudmila Kazmina ◽  
Valeria Provotorina ◽  
Vadim Makarenko ◽  
Antonina Petrenko

The article is directed toward the study of social and economic aspects of rural tourism and the hospitality industry, and toward the analysis of methods of efficiency of their development in the Rostov Region. The study defines rural tourism, considers its development potential in the territory of the Rostov Region, highlights the structure and state of the hospitality industry and demonstrates feasibility of importance and advisability of the development of accommodation places as a component of rural tourism infrastructure in the Rostov Region.


2021 ◽  
Vol 27 (6) ◽  
pp. 471-478
Author(s):  
S. S. Marchenko ◽  
L. E. Mamedova ◽  
M. E. Gogolyukhina

Aim. The presented study aims to develop methodological tools for assessing the economic aspects of the modernization of vessels operating on the Northern Sea Route.Tasks. The authors address the problem of economic justification for the modernization and improvement of efficiency of mixed river-sea cargo transport vessels operating on the Northern Sea Route; develop an algorithm and methodology for assessing the economic aspects of the modernization of vessels operating on the Northern Sea Route; determine the economic effect of upgrading the register class of modernized river vessels. Methods. This study proposes an algorithm for the economic assessment of the modernization of river and sea vessels, which includes the constructed mathematical models for upgrading the class of the vessel and forecasting net income.Results. The authors assess the economic viability of upgrading the register class of modernized vessels of the Omskiy and Sibirskiy type, which could become more competitive in the future and continue to operate on the Northern Sea Route with high economic efficiency, ensuring the supply of goods to northern Russian territories; form the financial profile of investment projects for the modernization of the considered types of vessels.Conclusions. Modernizing and upgrading the register class of river vessels and mixed river-sea vessels is a promising direction for adding modern cargo ships to the Russian fleet operating on the Northern Sea Route, particularly in the context of deliveries of goods to northern Russian territories. The performed economic assessment of the modernization of a Sibirskiy-type vessel according to the developed algorithm confirms the economic viability of modernizing mixed river-sea vessels.


2018 ◽  
Vol 25 (3) ◽  
pp. 62-68
Author(s):  
Mateusz Sondej ◽  
Chandana Ratnayake ◽  
Michał Wójcik

Abstract The article discusses issues related with storage of granular materials in silos made of corrugated sheets and reinforced with vertical ribs. Advantages and disadvantages of these structures are named, and typical technological solutions used by largest silo producers are presented. Moreover, basic assumptions of Eurocode 3 are discussed in the context of determining the buckling load capacity of a ribbed jacket. Alternative methods are indicated to determine the silo stability using analytical and FEM based methods. General conclusions are formulated with respect to designing of silos made of corrugated sheets.


1940 ◽  
Vol 13 (1) ◽  
pp. 149-158 ◽  
Author(s):  
Felix L. Yerzley

Abstract The oscillograph described has been developed primarily as a laboratory instrument to evaluate rubber and Neoprene compounds for mechanical applications. It is complete in itself as a means of measuring all of the quantities inherently involved in such service in units which are understandable to rubber technologists and mechanical engineers alike. It is hoped that it may serve its purpose by bringing into closer cooperation those who make and those who use rubber springs. The details of the test have been carefully developed, and it is expected that the machine and standard test-specimen described will not need essential modification for routine use. However, enough background has been given so that the machine may be modified in accordance with definite principles in order to gain greater load capacity if required. The test has been restricted thus far to compression. The author expects to adapt the machine to tests in shear, and by correlation between shear data and compression data to obtain figures capable of substitution in relationships already offered by other investigators for calculations in the applications and design of rubber springs. This field of calculation is complicated and in an early state of development, but by the use of the oscillograph it should be easier to obtain the quantities of information required to clarify our understanding of the mechanical characteristics of rubber-like materials within the range of deformation encountered in structural use.


2021 ◽  
Vol 29 (2) ◽  
pp. 51-65
Author(s):  
N. Blaschuk ◽  
◽  
I. Maevska ◽  
M. Goncharuk ◽  
◽  
...  

Іn this work, we searched for the optimal composition of soil cement containing different percentage of ash removal: from minor additives to the replacement of half the soil mass for ash. The search for the optimal composition was performed on the basis of experimental studies to determine the physical and mechanical characteristics.The use of soil cement with the addition of fly ash is proposed for the reinforcement of the bases by vertical reinforcing elements. In order to develop practical recommendations on the optimal composition of soil cement, a mathematical simulation of the work of reinforced soil cement fields was performed with the variation of the physical and mechanical characteristics of piles, depending on the ash content of the ash. . Plaxis software was used for numerical simulation. With a steady step of reinforcing elements, the properties of the soil-cement mass were studied, depending on the deformability of the piles.


2019 ◽  
Vol 27 (2) ◽  
pp. 71-80 ◽  
Author(s):  
Wioletta Wróblewska ◽  
Joanna Pawlak ◽  
Dariusz Paszko

AbstractFor many years Poland and Serbia have played the dominating roles in European raspberry production. However, the growing production in Ukraine might threaten the relative stability of the raspberry market for both countries. It is projected that in the coming years Ukraine will strengthen its competitive position in relation to the current industrial raspberry production leaders. This justifies the need to conduct comparative analyses of competitive power, and its contributory factors, including production costs in individual countries. The aim of this study was to compare economic viability and cost-effectiveness in raspberry production, using the examples of selected horticultural holdings in Poland, Serbia, and Ukraine. The production volumes of raspberries in Poland, Serbia and Ukraine were analysed. The levels of costs and the financial results generated in raspberry cultivation for processing purposes were also determined, using the example of horticultural holdings in this countries. The results indicated that the direct costs in Ukraine, were just over half lower those in Poland and Serbia. The raspberry crop yields in the three investigated countries were similar, and the sales prices in the analysed years made it possible to obtain a surplus of receipts over direct costs.


Sign in / Sign up

Export Citation Format

Share Document