scholarly journals Evaluation of the Adaptability of an EPB TBM to Tunnelling through Highly Variable Composite Strata

2021 ◽  
Vol 2021 ◽  
pp. 1-14
Author(s):  
Tao Li ◽  
Jinwu Zhan ◽  
Chao Li ◽  
Zhongsheng Tan
Keyword(s):  
Comprehensive Evaluation ◽  
Earth Pressure ◽  
Tunnel Boring Machine ◽  
Fuzzy Comprehensive Evaluation ◽  
Evaluation Index System ◽  
Evaluation Index ◽  
Pressure Balance ◽  
Technical Parameters ◽  
Evaluation Indexes ◽  
Epb Tbm

The adaptability of an earth pressure balance (EPB) tunnel boring machine (TBM) to complex geological strata needs to be evaluated when a tunnel project is set up. It is helpful for better design and more suitable technical parameters of the machine. Because the factors that influence adaptability are numerous and interrelated, their effects also differ; hence, a quantitative assessment of adaptability is generally difficult. In the present study, a method for quantitatively evaluating the excavation adaptability of an EPB TBM was developed using an analytic hierarchy process (AHP) and fuzzy comprehensive evaluation. The method first involves an initial selection of factors that may influence tunnelling. Based on the expert questionnaire and their influence weights determined by AHP, the 10 evaluation indexes from 25 primary indexes were selected to establish the evaluation index system (EIS) including a target, criteria, and index level. Fuzzy membership functions are then derived one after another based on the effect of each evaluation index on the EBP TBM tunnelling process. A fuzzy mathematical method was finally presented to determine the adaptability of an EPB TBM excavation performance. The proposed method was applied to two special sections of diameter 6.98 m excavated by two EPB TBMs in the Shenzhen Metro Line 11 project. The geological exploration shows that these two tunnel sections pass through typical composite strata in Shenzhen. The determined adaptability grades of the EPB TBMs used for composite strata were confirmed by the actual tunnel excavation. It indicates that the developed method is reasonable and useful to evaluate tunnelling adaptability of EPB TBM.

scholarly journals Modeling and Analysis of Football Players’ Specific Physical Ability Based on Training Evaluation Index

2021 ◽  
Vol 2021 ◽  
pp. 1-10
Author(s):  
Yuanhua Li ◽  
Shishan Zeng
Keyword(s):  
Physical Training ◽  
Index System ◽  
Comprehensive Evaluation ◽  
Fuzzy Comprehensive Evaluation ◽  
Evaluation Index System ◽  
Evaluation Index ◽  
Football Players ◽  
Modeling And Analysis ◽  
Evaluation Indexes ◽  
Weight Calculation

In order to accurately and efficiently evaluate the effect of special physical training for football players, modeling and analysis of evaluation indexes of special physical training for football players were mainly carried out. This paper analyzes the construction principle of the evaluation index system of football players’ special physical training, determines the evaluation primary index system, and constructs the evaluation index system of football players’ special physical training through comparison and screening. On this basis, the analytic hierarchy process is used to calculate the weight of the evaluation index, according to the weight calculation results of the evaluation index modeling using multilevel fuzzy comprehensive evaluation so as to get the evaluation results of the special physical training of football players. The experimental results show that the evaluation results of football players’ special physical training are consistent with the expert evaluation results, and the evaluation time is short, which can realize the accurate and efficient evaluation of football players’ special physical training effect.

scholarly journals Ecological Security Evaluation of Marine Ranching Based on DEMATEL-Fuzzy Comprehensive Evaluation

2021 ◽  
Vol 2021 ◽  
pp. 1-14
Author(s):  
Yuan-Wei Du ◽  
Jing Fang ◽  
Ping Wang
Keyword(s):  
Index System ◽  
Comprehensive Evaluation ◽  
Fuzzy Comprehensive Evaluation ◽  
Evaluation Index System ◽  
Evaluation Index ◽  
Security Evaluation ◽  
Ecological Security ◽  
Complete Evaluation ◽  
Complex Relationships

Marine ranching plays an integral role in providing fishery resources. Given the critical importance of protecting the marine ecological system, the ecological security evaluation of marine ranching is significant. However, the existing research rarely involves marine ranching ecological security (MRES) evaluation and does not provide a complete evaluation index system. The purpose of the present study was to estimate MRES through several steps and evaluate it scientifically by fully considering the relationship between the factors. First, the evaluation index system was structured using the Driver-Pressure-State-Impact-Response (DPSIR) framework by following certain principles. Second, the study applied the Decision Making Trial and Evaluation Laboratory (DEMATEL) method and fuzzy comprehensive evaluation (FCE) method to assess MRES. Third, a case study of a marine ranching in the Shandong Province was discussed to demonstrate the applicability of the proposed method. This also illustrated the steps of the evaluation. In this case study, the result of the MRES evaluation was graded as excellent. The results demonstrate that using these methods to evaluate MRES can account for the complex relationships between the factors and the cognitive ability of the experts and thus integrate the experts’ information comprehensively, which adds to the credibility of the evaluation results.

Fuzzy comprehensive evaluation of maritime boundary delimitation schemes based on AHP-entropy weight method

2021 ◽  
pp. 1-13
Author(s):  
Degang Wang ◽  
Dongling Li ◽  
Li Sun ◽  
Zhenke Zhang ◽  
Jie Cheng ◽  
...  
Keyword(s):  
Comprehensive Evaluation ◽  
Fuzzy Comprehensive Evaluation ◽  
Evaluation Index System ◽  
Evaluation Index ◽  
Entropy Weight ◽  
Angle Bisector ◽  
Maritime Boundary ◽  
Entropy Weight Method ◽  
Weight Method ◽  
Maritime Boundary Delimitation

There are 11 provinces along the coastal regions in the Chinese Mainland and the scientific division of marine management boundaries among different provinces within the extents of the territorial sea is of important significance in promoting the sustainable development of the marine economy in China. A fuzzy evaluation index system that includes 14 indices of three subsets was established based on a case study of maritime boundary delimitation between Jiangsu and Shandong Provinces to evaluate the advantages and disadvantages of maritime boundary delimitation and determine the optimal scheme and offset shortages in the current evaluation index system and evaluation methods. Combined weights of indices were calculated through the analytic hierarchy process (AHP) and entropy weight method. The comprehensive evaluation indices were used to evaluate three maritime boundary delimitation schemes, namely, historical boundary delimitation scheme, angle bisector delimitation scheme, and equidistance delimitation scheme. Results show that the equidistance delimitation scheme is relatively superior to the two other schemes. The evaluation index is 0.504761 and the evaluation grade is “good”. The angle bisector delimitation scheme is the second optimal. The evaluation index is 0.361641 and the grade is “moderate”. The historical boundary delimitation scheme is the poorest. The evaluation index is 0.135345 and the grade is “poor”. In the late optimization of maritime boundary delimitation schemes, more consideration should be given to people’s livelihood and protection of national maritime rights and interests. The fuzzy comprehensive evaluation method based on AHP-entropy weight can not only provide a quantitative top-down sequence of schemes in terms of quality and solve estimation problems in maritime boundary delimitation scheme, but also assist decision-makers to select the best scheme. Therefore, it possesses great application values.

Study on Evaluation Methods of Disciplines in Universities

2013 ◽  
Vol 423-426 ◽  
pp. 2930-2933
Author(s):  
Cong Jun Rao
Keyword(s):  
Evaluation Method ◽  
Comprehensive Evaluation ◽  
Evaluation Model ◽  
Scientific Research ◽  
Fuzzy Comprehensive Evaluation ◽  
First Grade ◽  
Evaluation Index System ◽  
Analytic Hierarchy ◽  
Evaluation Indexes ◽  
Research Achievement

The level and status of disciplines are the important indexes in universities. The evaluation of multiple disciplines plays an important role in the disciplines development. This paper mainly studied the problem of disciplines evaluation in higher education. Firstly, it established the evaluation index system with eight first-grade evaluation indexes, i.e., discipline construction, teaching award, research funding, the scientific research achievement award, team construction, scientific research, talent training, and initial investment, and then used the method of Analytic Hierarchy Process (AHP) to solve the weight of each index. Thirdly, it established a disciplinary evaluation model based on fuzzy comprehensive evaluation method, and analyzed the rationality of the model. The study in this paper provides a new way for the evaluation of university disciplines.

Research on Waste Product Recycling Ability Evaluation for Remanufacturing

2014 ◽  
Vol 955-959 ◽  
pp. 2683-2686
Author(s):  
Zhan Feng Zhou ◽  
Yan Wei Du
Keyword(s):  
Comprehensive Evaluation ◽  
Waste Product ◽  
Green Manufacturing ◽  
Fuzzy Comprehensive Evaluation ◽  
Evaluation Index System ◽  
Evaluation Index ◽  
Analytic Hierarchy ◽  
Decision Attributes ◽  
Product Recycling ◽  
Hierarchy Process

According to the decision attributes of green manufacturing and requirements of remanufacturing, an evaluation index system of waste product recycling ability was established, the weight of every level index was determined by using analytic hierarchy process, according to the fuzziness and uncertainty of evaluation index, the recycling ability was evaluated by applying the fuzzy comprehensive evaluation and an example was given. The result shows that the method is simple, accurate and has a good application.

Research on the Evaluation Method of Energy-Saving Technology about Traffic and Transportation

2011 ◽  
Vol 148-149 ◽  
pp. 1543-1547
Author(s):  
Xiao Li ◽  
Li Liu ◽  
Qiang Li
Keyword(s):  
Energy Saving ◽  
Index System ◽  
Evaluation Method ◽  
Comprehensive Evaluation ◽  
Fuzzy Comprehensive Evaluation ◽  
Evaluation Index System ◽  
Evaluation Index ◽  
Technology Evaluation ◽  
Energy Saving Technology

The energy-saving technology of the transport is still in its infancy. It has some questions about the evaluation and the promotion. Which lead to excellent energy-saving technology turn into productive forces can not be timely. In this case. The paper establishes the energy-saving technology evaluation index system by the Delphi; and calculated the evaluation index weights of each factor by the AHP. Finally, the paper proposed the evaluation method of the energy-saving technology which based on fuzzy comprehensive evaluation.

Fuzzy Comprehensive Evaluation on Battery Electric Vehicle Dynamics and Energy Consumption Economy

2011 ◽  
Vol 201-203 ◽  
pp. 1456-1459
Author(s):  
Ming Chen ◽  
Li Xin Guo
Keyword(s):  
Energy Consumption ◽  
Electric Vehicle ◽  
Index System ◽  
Comprehensive Evaluation ◽  
Evaluation Model ◽  
Fuzzy Comprehensive Evaluation ◽  
Evaluation Index System ◽  
Evaluation Index ◽  
Battery Electric Vehicle ◽  
Design Scheme

This paper gives the evaluation method of the design scheme of power transmission system and builds the evaluation index system and fuzzy comprehensive evaluation model based on the index of dynamic property and energy consumption economy of battery electric vehicle. And the evaluation index system and evaluation model can be used to provide basis for the decision of the design scheme.

Fuzzy Comprehensive Evaluation on Ability of Symbiotic Innovation in Sustainable Technology

2011 ◽  
Vol 361-363 ◽  
pp. 1364-1369 ◽  
Author(s):  
Zhi Jin Xu ◽  
Yan Kui Song
Keyword(s):  
Sustainable Development ◽  
General Solution ◽  
Comprehensive Evaluation ◽  
Fuzzy Comprehensive Evaluation ◽  
Evaluation Index System ◽  
Evaluation Index ◽  
Sustainable Technology ◽  
The Sustainable Development ◽  
Technological Resource ◽  
Resource Environment

The Ability of Symbiotic Innovation in Sustainable Technology (ASIST) plays an important role in the sustainable development. It is of great strategic significance for enterprises to evaluate this ability scientifically and rationally. How can we evaluate it in a scientific, rational, standardized and quantitative way? In this paper the author thinks that ASIST is an ability system of multifaceted and multileveled components, such as the abilities of symbiosis with economic, social, natural and scientific & technological resource environment. The evaluation of this ability is a problem of multifactor, multilevel and fuzzy comprehensive decision, so it is reasonable and effective to select and apply the method of Fuzzy Comprehensive Evaluation (FCE). After constructing an evaluation index system composed of 4 factors and 15 indexes, the author proposes and analyses preliminarily the general models and process to evaluate the ability using FCE. The models include the basic, multilevel and multioperator ones and the process composes of 5 main steps. He further illustrates the general solution of the fuzzy comprehensive evaluation of ASIST with a practical example, in the hope of realizing the evaluation to be scientific, rational, standardized and quantitative.

Assessment on the Possibility of Low-Carbon Economic Development - Taking Zhejiang, China as a Case Study

2013 ◽  
Vol 291-294 ◽  
pp. 1402-1406
Author(s):  
Bin Zhou ◽  
Lu Jin ◽  
He Zhang ◽  
Qun Deng ◽  
Jing Xu ◽  
...  
Keyword(s):  
Economic Development ◽  
Index System ◽  
Comprehensive Evaluation ◽  
Zhejiang Province ◽  
Evaluation Index System ◽  
Evaluation Index ◽  
Low Carbon ◽  
Low Carbon Economy ◽  
Evaluation Indexes ◽  
Carbon Economy

Based on the principles of scientific, systematic, practicality, hierarchy, the paper constructs the evaluation index system of the Possibility of Low-carbon Economic Development, and determines the assessment of evaluation indexes applying the analytic hierarchy process (AHP), and builds the multi-objective linear weighted evaluation function model. Taking the Province of Zhejiang for example, the Possibility of Low-carbon Economic Development was evaluated. The results can be summarized as follows: The construction the evaluation index system of the Possibility of Low-carbon Economic Development is scientific and has a certain operability; The development of low-carbon economy in Zhejiang Province is potential, and the comprehensive evaluation has 4 levels; From certain aspects，such as the establishment and improvement of the low-carbon economy policy system，management system for carbon emissions and carbon exchanges，the introduction of foreign advanced low-carbon technologies，the promotion of low-carbon consumption and low-carbon lifestyle, measures can be taken to promote the development of a low- carbon economy in Zhejiang Province.

Index System and Model of Evaluation to Implemented Performance of Patent Strategy from Perspective of Sustainable Development

2014 ◽  
Vol 1073-1076 ◽  
pp. 2852-2856
Author(s):  
Zhi Jin Xu ◽  
Yan Kui Song
Keyword(s):  
Sustainable Development ◽  
Index System ◽  
Evaluation Method ◽  
Comprehensive Evaluation ◽  
Evaluation Model ◽  
Fuzzy Comprehensive Evaluation ◽  
Evaluation Index System ◽  
Evaluation Index ◽  
Comprehensive Evaluation Method ◽  
Patent Strategy

The implemented performance of enterprise’s patent strategy is an important component to measure its comprehensive benefits. It is of strategic significance for an enterprise to evaluate objectively its implemented performance of patent strategy. From the perspective of sustainable development, according to the 4 aspects of creation, application, protection and management of patent, the essay constitutes preliminarily a comprehensive evaluation index system of the implemented performance of enterprise’s patent strategy which is composed of a set of 21 indexes on the basis of an amount of domestic and foreign literature survey, case study and expert consultation, and analyzes the evaluation model and method of implemented performance of enterprise’s patent strategy with the fuzzy comprehensive evaluation and through a real case. The essay thinks the constitution of evaluation index system should obey a series of basic principles of objectivity, systematization, science and conciseness and the evaluation in essence is multi-object, multi-factor and multi-layer. Therefore, it is effective and feasible to select the Fuzzy Comprehensive Evaluation method.

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