Constructii Journal of Civil Engineering Research最新文献_第7页

Integrated Solution to the Problem of Resource-Saving Fixing of Moving Sands 流沙资源节约型固定问题的综合解决方案

Constructii Journal of Civil Engineering Research Pub Date : 2019-03-28 DOI: 10.19080/cerj.2019.07.555723

M. Mirakhmedov

{"title":"Integrated Solution to the Problem of Resource-Saving Fixing of Moving Sands","authors":"M. Mirakhmedov","doi":"10.19080/cerj.2019.07.555723","DOIUrl":"https://doi.org/10.19080/cerj.2019.07.555723","url":null,"abstract":"Introduction Deserts and semi-deserts occupy 31.4 million km2 on the surface of the Earth, including the Sahara (covers 11 countries of North and West Africa), and Namib (South Africa, Namibia) in Africa, Rub al-Khali (Arabian Peninsula), DashtiNaumid (Iran), Karakum and Kyzylkum (Turkmenistan, Uzbekistan, Kazakhstan, Tar (Pakistan, India), Gobi and Takla-Makan (China) in Asia, Mojave with its Death Valley in North America, the Great and Small Sandy Deserts, the Simpson Desert in Australia [1]. Building engineering communications in these conditions over the past two centuries have tended to expand. Eniyu [25] Construction sandy deserts associated with the negative impact of exogenous process deflation and its activation brittle fracture bioravnovesiya-destruction of vegetation, which is formed very slowly [6-11]. In the Republic of Uzbekistan, mobile sands occupying more than 30% of the territory are sources of blowing and drifting irrigation networks, roads and railways, gas pipelines and, as a result, the reason for reducing the safety of their operation [12]. Therefore, in the construction and operation of engineering structures in sandy deserts, the problem of protecting them from blowing and from drifts is given significant importance [13-15].","PeriodicalId":30320,"journal":{"name":"Constructii Journal of Civil Engineering Research","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72450451","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Law Education for Civil engineers 土木工程师的法律教育

Constructii Journal of Civil Engineering Research Pub Date : 2019-03-26 DOI: 10.19080/cerj.2019.07.555722

K. Holschemacher

引用次数: 0

Structural Fire Design-Statement on the Design of Cross-Laminated Timber (CLT) 结构防火设计-交叉层压木材(CLT)设计说明

Constructii Journal of Civil Engineering Research Pub Date : 2019-03-22 DOI: 10.19080/CERJ.2019.07.555721

J. Schmid, N. Werther, Michael Klippel, A. Frangi

引用次数: 3

Industrial Development Conflicts in Modern Developmental State: Taiwan taken as an Example

Constructii Journal of Civil Engineering Research Pub Date : 2019-03-15 DOI: 10.19080/CERJ.2019.07.555716

A. Cheng

{"title":"Industrial Development Conflicts in Modern Developmental State: Taiwan taken as an Example","authors":"A. Cheng","doi":"10.19080/CERJ.2019.07.555716","DOIUrl":"https://doi.org/10.19080/CERJ.2019.07.555716","url":null,"abstract":"The rapid growth of Taiwan’s economy was contributed to manufacturing and a specific economic development model, developmental state strategy, in the later 20th century. As a developmental state, the government has high state autonomy; its decision-making organizations are composed by professional technocrats; the policy decision put a priority on economic development to facilitate rapid industrialization with positive interventions. In addition, government will subsidize strategic industries and provide the preferential loans for enterprises to promote the development of the emerging industries [1]. Shi-jie [2] also generalized three main features of developmental state. First, government highly intervenes markets and establishes the dedicated agencies (such as Ministry of International Trade and Industry in Japan, National Development Council in Taiwan, Economic Development Board in Singapore, etc.) to formulate developing strategies to lead the economic development [3]. Second, government adopts flexible industrial policies to support the strategic industries with various subsidies and safeguards. Third, government implements land reform with clear social policies, maintains social and economic equality to prevent serious political conflicts. The features mentioned above could be found in Taiwan’s government as well, it was centralized and dominated industrial development to accumulate great wealth for Taiwan in a short time. In 1949, the Republic of China government withdrew to Taiwan, first invested in light industry to supply domestic demand market, and then turned to export after 1960. Since 1972, the gross production of heavy industry was finally equal to light industry; Taiwan transformed into an industrialized society afterward Shu-Yuan [4]. However, under the impacts of international political situation and economic environment in the early 1970s, Taiwan’s government implemented “Ten Major Construction Projects” to strengthen infrastructures in terms of transportation, heavy industry and energy development to improve economy.","PeriodicalId":30320,"journal":{"name":"Constructii Journal of Civil Engineering Research","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77005193","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Substantiation of the Way of Modernization of Shunting Diesel Locomotives 调车内燃机车现代化道路的论证

Constructii Journal of Civil Engineering Research Pub Date : 2019-03-13 DOI: 10.19080/CERJ.2019.07.555714

O. Pasko

{"title":"Substantiation of the Way of Modernization of Shunting Diesel Locomotives","authors":"O. Pasko","doi":"10.19080/CERJ.2019.07.555714","DOIUrl":"https://doi.org/10.19080/CERJ.2019.07.555714","url":null,"abstract":"The analysis of the reconstruction process of traction means on the world railways shows that the railway polygon operated by diesel locomotive traction and the transport volume carried out by diesel locomotives on the railways occupy the leading place. Despite the fact that in the countries of Western Europe and the USA the process of introducing advanced types of traction has been completed or is almost completed, demand for diesel locomotives will remain stable worldwide. Moreover, these countries will require the replacement and modernization of outdated diesel locomotives. All this is driving the leading global diesel locomotive companies such as Brush Traction, Alstom, Toshiba, General Electric to work intensively on the creation of new diesel locomotive constructions. The global trend towards energy efficiency makes it necessary to move to more environmentally friendly and reliable shunting diesel locomotives. Given the fact that shunting diesel locomotives are often used as suburban railway locomotives in short, inactive sections, the issue of reducing fuel and energy consumption is currently an acute and priority task. They are also one of the most important elements of railway stations ensuring their uninterrupted operation, therefore the creation of hybrid units for shunting traction with advanced control systems is one of the actual scientific and technical tasks of the railway transport. The article addresses the problems of inefficient use of fuel and energy resources by shunting locomotives. The proposed functional scheme of the hybrid diesel locomotive makes it possible to introduce traction engine control systems to improve their properties..","PeriodicalId":30320,"journal":{"name":"Constructii Journal of Civil Engineering Research","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77239477","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

The current state of nuclear electrical power in the United States 美国目前的核电状况

Constructii Journal of Civil Engineering Research Pub Date : 2019-02-27 DOI: 10.31031/acet.2019.03.000553

G. Sandquist

引用次数: 0

Empirical Study of Optimal Capital Structure and the Debt Capacity of BOT Projects BOT项目最优资本结构与债务能力实证研究

Constructii Journal of Civil Engineering Research Pub Date : 2019-02-20 DOI: 10.19080/CERJ.2019.07.555713

Borliang Chen

{"title":"Empirical Study of Optimal Capital Structure and the Debt Capacity of BOT Projects","authors":"Borliang Chen","doi":"10.19080/CERJ.2019.07.555713","DOIUrl":"https://doi.org/10.19080/CERJ.2019.07.555713","url":null,"abstract":"It is world widely trend for governmental agencies to promote private sectors to participate in the development of infrastructures, such as BOT projects. However, BOT projects are inherently risky due to too many uncertainties during the project period. Overoptimistic in revenue and lack of risk analysis in BOT projects might usually lead the concessionaire to misestimate the project feasibility. This may result in high probability of defaults (PD) of BOT projects and cause financial disaster toward concessionaire. In the worst situation, it could make the projects become unbackable. However, it is rarely to discuss the probability of defaults and bankruptcy cost in the conventional BOT financial model. In general, capital structure of BOT projects is assumed 30% of equity and 70% of debt, and debt repayment is arranged in repaying equivalent uniform annul cost debt in repayment periods. This kind of repayment arrangement does not consider the erratic nature of revenue. It is risky to repay the debt obligation with inflexible repayment term. And, it may lead to high PD of the projects. The objective of this study was to alleviate the risk of project defaults due to the volatility of revenue. A student dormitory project of the national United University in Taiwan is used as an empirical study to demonstrate the analysis. The repayment arrangement proposed in this paper could make the 35% PD of the project reduce to less than 1% PD.","PeriodicalId":30320,"journal":{"name":"Constructii Journal of Civil Engineering Research","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-02-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79070105","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Discussion on Seismic Performance of Non-seismically Designed Structures 非抗震设计结构抗震性能探讨

Constructii Journal of Civil Engineering Research Pub Date : 2019-02-20 DOI: 10.19080/CERJ.2019.07.555712

H. Wong

引用次数: 0

Following Status and Percent Followers on Two-Lane Highways: Empirical Investigation 双车道高速公路跟随者状况与百分比:实证调查

Constructii Journal of Civil Engineering Research Pub Date : 2019-02-15 DOI: 10.19080/CERJ.2019.07.555711

A. Al-Kaisy

{"title":"Following Status and Percent Followers on Two-Lane Highways: Empirical Investigation","authors":"A. Al-Kaisy","doi":"10.19080/CERJ.2019.07.555711","DOIUrl":"https://doi.org/10.19080/CERJ.2019.07.555711","url":null,"abstract":"This paper presents an empirical investigation into car following interactions. Detector data from 15 study sites in Idaho, Montana and Oregon representing all three highway classes were used in this investigation. Investigation of speeds and headways suggests that the headway at which vehicles start the car-following interaction (referred to in this study as the critical headway) varied in a range that is site-specific, with the lower limit generally varying between 1 and 2 seconds, and the upper limit varying between 6 and 7 seconds. The study also found that vehicles traveling at a perceived minimum safe headway increase in number as headways get smaller and more vehicles enter the car following state. Further, the study introduced a new approach for estimating percent followers in the traffic stream and used field data in deriving headway cut-off values. Headway cut-off value for percent followers at class I sites varied between 1.8 and 2.8 seconds, while those for class II and class III sites are slightly above 3 seconds. This paper presents an empirical investigation into the car-following interaction and the estimation of percent followers on rural two-lane highways. Field data from 15 study sites in Idaho, Montana and Oregon were used in this investigation. The most important findings of this study are summarized as follows:","PeriodicalId":30320,"journal":{"name":"Constructii Journal of Civil Engineering Research","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-02-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82725541","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Preference Index of the Acoustic Quality Assessment of Sacral Sound Field 骶骨声场音质评价的偏好指数

Constructii Journal of Civil Engineering Research Pub Date : 2019-02-12 DOI: 10.19080/cerj.2019.07.555710

Chiung-Yao Chen

引用次数: 0