scholarly journals Evaluation Method of Complex Slope Stability in Construction Industry Based on Correlation Calculation

CONVERTER ◽  
2021 ◽  
pp. 647-657
Author(s):  
Weiwei Zhu

Based on the basic-element expression method and correlation function theory in Extenics, combined with the knowledge of slope engineering, a method for evaluating the stability of complex slope is proposed. The evaluation process includes the selection of suitable evaluation indexes of slope stability, identificationof the classification standard for the slope stability, identificationof the weights of evaluation indexes by using the improved analytic hierarchy process,identificationof the classical domain, node domain and matter-element under evaluation,the calculation of the correlation of each stability class for each evaluation index, normalization of correlation,and so on. The selection rule of the slop stability evaluation indexes and selection of correlation function and optimal points are also discussed, which can provide reference for slope engineering designin construction industry.

2011 ◽  
Vol 243-249 ◽  
pp. 3007-3011 ◽  
Author(s):  
Jun Lan Zhao

Application and research of GIS in the slope engineering is one of the hot topics in this field. In this paper, the fuzzy comprehensive evaluation method of slope stability based on GIS was researched. It developed and set up a multi factor slope fuzzy comprehensive evaluation system by using slope database and can quantitatively classify and evaluate the slope stability in a quick and efficient way. This system can be at work on slope data management, inquiry, statistics and spatial analysis. It evaluated the fatality and vulnerability to the slope of a large scale coal mine as an example.


Author(s):  
Mingxin Zhao

For pressure vessels and other welded structures subjected to cyclic loading conditions, fatigue failure of welded joints has been a major concern in design and operation. ASME Boiler and Pressure Vessel Code Section VIII Division 2 [1] provides different methods for fatigue evaluation on welded joints with various geometries, which facilitates the design and evaluation of welded joints subjected to cyclic loading. The selection of fatigue evaluation method will affect accuracy and outcome. This study attempts to demonstrate the design and evaluation process of a welded joint. Two major different fatigue evaluation methods have been used and results are analyzed and compared against operation data. The intention of this study is simply to present a practical case, through which proper selection of fatigue evaluation method for the specific welded joint could be suggested to achieve a safe, and yet, economical design.


2021 ◽  
Vol 7 (1) ◽  
pp. 179-196
Author(s):  
Pardeep Kumar Oad ◽  
Stephen Kajewski ◽  
Arun Kumar ◽  
Bo Xia

Objectives: This paper present a thorough understanding of bid evaluation process and assessment of innovation in road construction industry. Methods/Analysis: The research articles reviewed are based on topics of bid evaluation process, evaluation of bids in road construction industry, the indicators and techniques of bids evaluation, process of Bid evaluation in countries, innovation in road industry, and indicators of innovation in the context of road construction industry. Findings: It is widely accepted that projects related to the road construction must be accomplished in an organized manner. Literature indicates that the road constructing demands from customers and competition of assessing and evaluating tenders have been increasing rapidly. Novelty /Improvement: Challenges in developing suitable roads contribute to the inconsistency in the industry and directly demands towards physical work on a road construction project, nevertheless, a failure to accurately assessment of tenders can lead to complications for the whole project and road Construction Company. The selection of a suitable construction contractor’s surges likelihoods of successful achievement of a road construction project. This may also achieve the customer goals, and retain the project schedule on time, within the budget and achieve high quality project. Doi: 10.28991/cej-2021-03091646 Full Text: PDF


2012 ◽  
Vol 605-607 ◽  
pp. 127-132 ◽  
Author(s):  
Ji Wei Qiu ◽  
Rui Jun Zhang ◽  
Xin Xin Si

To construct the rational and scientific design scheme evaluation method for a target, on the basis of researching on the complement of the gray clustering theory and information axiom, applying the combination in the design scheme evaluation, a scheme evaluation method based on the grey clustering and information axiom integrated is put forward. Aiming at the defect of obtaining difficulty for evaluation indexes, the evaluation index system is constructed by using the analytical hierarchy process. Aiming at the shortcoming that qualitative indexes are not be evaluated by information axiom, the qualitative index is whitened by using the triangle whiten weight function. At the same time, the computational formula of the information amount is improved, and the design scope and system scope of design scheme are extended to make the calculation results more actual. The weight of each index in the evaluation process isn’t needed to provide, and the subjective judgment is avoided on the influence of the evaluation results. Taking the process of obtaining the optimal scheme for the mechanical parking equipment as an example, the proposed method is analysis verified. The application examples show that the optimal scheme satisfying user needs is got in a relatively short time by using this evaluation method and a theoretical basis is provided for the establishment of a scientific and rational evaluation method.


2012 ◽  
Vol 482-484 ◽  
pp. 2297-2300
Author(s):  
Ni Zhao ◽  
Juan Mei Zhang

It is an important link for supporting business operations and decision-making to select optimal model from multiple models. Based on the analysis on traditional dichotomy model evaluation methods, the paper presented a kind of method to evaluate model performance that consider multiple individual evaluation indexes to compute comprehensive index ranking score. The method solves the problem of difficulty for modeling personnel when using multiple traditional evaluation indexes to evaluate a group model that different conclusion caused by different methods. The evaluation example based on the method shows that the weighted comprehensive index based evaluation method is of reference value for the optimal selection of dichotomy model.


10.28945/4505 ◽  
2020 ◽  
Vol 15 ◽  
pp. 039-064
Author(s):  
Rogerio Ferreira da Silva ◽  
Itana Maria de Souza Gimenes ◽  
José Carlos Maldonado

Aim/Purpose: This paper presents a study of Virtual Communities of Practice (VCoP) evaluation methods that aims to identify their current status and impact on knowledge sharing. The purposes of the study are as follows: (i) to identify trends and research gaps in VCoP evaluation methods; and, (ii) to assist researchers to position new research activities in this domain. Background: VCoP have become a popular knowledge sharing mechanism for both individuals and organizations. Their evaluation process is complex; however, it is recognized as an essential means to provide evidences of community effectiveness. Moreover, VCoP have introduced additional features to face to face Communities of Practice (CoP) that need to be taken into account in evaluation processes, such as geographical dispersion. The fact that VCoP rely on Information and Communication Technologies (ICT) to execute their practices as well as storing artifacts virtually makes more consistent data analysis possible; thus, the evaluation process can apply automatic data gathering and analysis. Methodology: A systematic mapping study, based on five research questions, was carried out in order to analyze existing studies about VCoP evaluation methods and frameworks. The mapping included searching five research databases resulting in the selection of 1,417 papers over which a formal analysis process was applied. This process led to the preliminary selection of 39 primary studies for complete reading. After reading them, we select 28 relevant primary studies from which data was extracted and synthesized to answer the proposed research questions. Contribution: The authors of the primary studies analyzed along this systematic mapping propose a set of methods and strategies for evaluating VCoP, such as frameworks, processes and maturity models. Our main contribution is the identification of some research gaps present in the body of studies, in order to stimulate projects that can improve VCoP evaluation methods and support its important role in social learning. Findings: The systematic mapping led to the conclusion that most of the approaches for VCoP evaluation do not consider the combination of data structured and unstructured metrics. In addition, there is a lack of guidelines to support community operators’ actions based on evaluation metrics.


Author(s):  
Hao Xu ◽  
Liuxin Chen ◽  
Qiongfang Li ◽  
Jianchao Yang

Due to the continuous changes of political environment, consumption habits, technological progress and other factors, the external environment of enterprises is full of uncertainty. The turbulence of external environment is not conducive to the long-term operation and development of enterprises, but also brings great challenges to the selection of suppliers. This makes the competition of enterprises focus on how to choose long-term cooperation suppliers in the uncertain external environment. In addition, due to the deterioration of the global environment, governments pay more and more attention to environmental pollution, and consumers are more and more inclined to green consumption, which makes many companies pay more and more attention to environmental indicators when selecting suppliers. In the case of external environment turbulence and serious environmental pollution, the evaluation and selection of green suppliers in uncertain environment is particularly important for the long-term development of enterprises. What’s more, when the supplier’s capability gap is small, the decision-maker often hesitates among several suppliers. In this paper, the hesitant fuzzy is used to describe the hesitant psychology of decision-makers in selecting suppliers, the variance fluctuation is used to describe the characteristics of hesitant fuzzy numbers, and the probability is used to measure the uncertainty of the environment. A green supplier evaluation model under the uncertainty environment is proposed, which comprehensively evaluates the green suppliers under the uncertain environment. Furthermore, it is compared with other methods that do not consider the uncertainty and the adaptability of evaluation method and right confirmation method, so as to reflect the influence of uncertainty to green supplier evaluation and the importance of adaptability of evaluation method and right confirmation method.


2014 ◽  
Vol 672-674 ◽  
pp. 1441-1446 ◽  
Author(s):  
Yu Qiang Ou ◽  
Le Feng Cheng ◽  
Jian Zhong Wen ◽  
Xuan Yu Qiu ◽  
Tao Yu

Research on reliability of distribution network has very important meaning and function to ensure the quality of power supply. This paper introduces some basic concepts of reliability in distribution network, including distribution network reliability definition, task and index. The classical reliability evaluation method was reviewed, and focused on specific distribution network, an example analysis was given, and specific reliability evaluation indexes were calculated. Finally, the future development of distribution network reliability evaluation was made a simple prospect.


2012 ◽  
Vol 18 (4) ◽  
pp. 696-710 ◽  
Author(s):  
Peide Liu ◽  
Xingying Wu

According to the characteristics of human resources managers’ competency and the research of relevant literatures at home and abroad, a competency evaluation method of human resources managers based on multi-granularity linguistic variables and VIKOR method is proposed. Firstly, the evaluation indicator system based on the competency of human resources managers is constructed. Then, by converting the evaluation information of different experts in different granularity to the same granularity by two-semantics, the comprehensive evaluation values can be obtained by integrating information of different experts. Further, the objective weights of the evaluation indexes were determined by the entropy method and an evaluation method were proposed based on the VIKOR method. Finally, an application example is given to illustrate the evaluation procedures of the developed approach and to demonstrate their practicality and effectiveness.


Author(s):  
Edgar Berkey ◽  
Jessica M. Cogen ◽  
Val J. Kelmeckis ◽  
Lawrence T. McGeehan ◽  
A. Thomas Merski

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