scholarly journals Reliability Evaluation of Water-Rich Loess Tunnel with Lining Crack Based on Extension Theory

2019 ◽  
Vol 2019 ◽  
pp. 1-10 ◽  
Author(s):  
Xiaohui Xue ◽  
Jun Zhang ◽  
Xinxing Zhou
Keyword(s):  
Evaluation Method ◽  
Evaluation Model ◽  
Crack Depth ◽  
Laser Scanner ◽  
Reliability Evaluation ◽  
Extension Theory ◽  
Analytic Hierarchy ◽  
Prevalent Disease ◽  
Safety And Reliability ◽  
Hierarchy Process

Crack is the most prevalent disease of water-rich loess tunnels, which impacts the tunnel safety and reliability. The study aimed to investigate the multi-index of tunnel lining crack based on extension theory and reliability evaluation. A new evaluation model was built, and the matter-element concept was used to describe the reliability of a water-rich loess tunnel with lining crack. Crack width, crack depth, crack length, crack geometry, and water seepage of the Qiaoyuan tunnel were measured by intelligent crack measuring instrument, 10 m tape, laser scanner, and dosing cup. According to the analytic hierarchy process (AHP), the judgment matrix could be used to describe the relative importance of each index. Combining the maximum eigenvalue with checking consistency, the weight coefficients of 5 factors were calculated. A probabilistic statistic method and comparison of specification are performed to confirm the validity of extension theory in reliability evaluation. The results showed that the extension theory provided a reliability evaluation method of a water-rich loess tunnel with lining crack.

Application of Analytic Hierarchy Process in Bridge Safety Comprehensive Evaluation

2015 ◽  
Vol 744-746 ◽  
pp. 744-748 ◽  
Author(s):  
Jun Li Wang
Keyword(s):  
Analytic Hierarchy Process ◽  
Safety Management ◽  
Comprehensive Evaluation ◽  
Evaluation Model ◽  
Evaluation Index ◽  
Analytic Hierarchy ◽  
Safety Level ◽  
Bridge Safety ◽  
Safety And Reliability ◽  
Hierarchy Process

In order to appraise the safety and reliability of bridges effectively, the comprehensive evaluation model based on analytic hierarchy process was established. The weight of evaluation index was calculated by using the model, and each evaluation index was given score by experts according to actual circumstances, and, on this basis, safety level of the bridge was obtained. And, afterwards, the model was applied to an engineering example for Huangjiaba Bridge. The results show that the evaluation level of bridge safety is third-level, with serious problems existing in this practical example, and the corresponding measures are proposed, which can provide scientific reference for bridge safety management.

Study on a Rough Evaluation of Engineering Project Informatization

2014 ◽  
Vol 584-586 ◽  
pp. 2613-2617
Author(s):  
Li Shen ◽  
Yun Ting Zhou ◽  
Ji Rong Song
Keyword(s):  
Construction Industry ◽  
Evaluation Method ◽  
Comprehensive Evaluation ◽  
Evaluation Model ◽  
Fuzzy Comprehensive Evaluation ◽  
Engineering Project ◽  
Analytic Hierarchy ◽  
Comprehensive Evaluation Method ◽  
Hierarchy Process ◽  
Engineering Projects

With the development of construction industry, engineering projects are becoming more and more large and complicated that makes the informatization more and more important, at the same time it produced a need of evaluation of engineering project informatization. A rough evaluation of engineering project informatization is established, and using the Fuzzy Comprehensive Evaluation Method based on Analytic Hierarchy Process (AHP) to evaluate the model quantitatively. Authors run the rough evaluation model by using the data of a simulation investigation performed on one project and obtain a result of the project's informatization level.

Study for Evaluation Method Based on Neural Networks

2013 ◽  
Vol 411-414 ◽  
pp. 1948-1951
Author(s):  
Yi Wang ◽  
Han Ding ◽  
Fan Yang
Keyword(s):  
Neural Networks ◽  
Analytic Hierarchy Process ◽  
Social Life ◽  
Evaluation Method ◽  
Comprehensive Evaluation ◽  
Evaluation Model ◽  
Real Situation ◽  
Analytic Hierarchy ◽  
The Real ◽  
Hierarchy Process

In human social life, it is often need to make comprehensive evaluation for person, thing , or a project to carry on the classification or evaluation. Analytic hierarchy process is relatively common and the most simple evaluation model. It draw up a series of evaluation index according to the evaluation object. The index may contain multiple child index, according to the relationship between the indexes or artificial factors to determine tie index weight, and get the overall evaluation for objects. The artificial factor is too much, it can not objectively reflect the real situation of the evaluation object. This paper proposed a evaluation method based on neural networks, based on the indexed of the analytic hierarchy process, through using the expert evaluation samples, by the BP neural network to study, so as to get the objective weight of the indexes, and then reflect the real situation of the evaluation objects.

scholarly journals Determination of Optimal Opening Scheme for Electromagnetic Loop Networks Based on Fuzzy Analytic Hierarchy Process

2016 ◽  
Vol 2016 ◽  
pp. 1-11 ◽  
Author(s):  
Yang Li ◽  
Yahui Li ◽  
Zijiao Han ◽  
Guoqing Li ◽  
Kai Gao ◽  
...  
Keyword(s):  
Analytic Hierarchy Process ◽  
Evaluation Method ◽  
Comprehensive Evaluation ◽  
Evaluation Model ◽  
Fuzzy Comprehensive Evaluation ◽  
Power Grids ◽  
Fuzzy Analytic Hierarchy Process ◽  
Liaoning Province ◽  
Analytic Hierarchy ◽  
Hierarchy Process

Studying optimization and decision for opening electromagnetic loop networks plays an important role in planning and operation of power grids. First, the basic principle of fuzzy analytic hierarchy process (FAHP) is introduced, and then an improved FAHP-based scheme evaluation method is proposed for decoupling electromagnetic loop networks based on a set of indicators reflecting the performance of the candidate schemes. The proposed method combines the advantages of analytic hierarchy process (AHP) and fuzzy comprehensive evaluation. On the one hand, AHP effectively combines qualitative and quantitative analysis to ensure the rationality of the evaluation model; on the other hand, the judgment matrix and qualitative indicators are expressed with trapezoidal fuzzy numbers to make decision-making more realistic. The effectiveness of the proposed method is validated by the application results on the real power system of Liaoning province of China.

Fuzzy Reliability Evaluation of RC Rigid-Frame Arch Bridge in Service

2012 ◽  
Vol 204-208 ◽  
pp. 1999-2003
Author(s):  
Ai Ping Chen ◽  
Rong Ting Diao
Keyword(s):  
Comprehensive Evaluation ◽  
Evaluation Model ◽  
Weight Vector ◽  
Reliability Evaluation ◽  
Fuzzy Reliability ◽  
Analytic Hierarchy ◽  
Basic Principles ◽  
Arch Bridge ◽  
Rigid Frame ◽  
Hierarchy Process

According to the basic principles and methods of the fuzzy reliability assessment to the existing bridge, RC rigid-frame arch bridge with Fuzzy reliability evaluation of a judgment factor sets of class I and class Ⅱare identified in this paper, aiming at the existing disease in this kind of bridge. Then, the fuzzy reliability comprehensive evaluation model of RC rigid-frame arch bridge is established. Meantime, the paper raises the membership function of each evaluation index; uses Analytic hierarchy process (AHP) to determine the weight vector of each factor. At last, a reliable practical analytical method for the evaluation of the existing RC rigid-frame arch bridge’s bearing capacity is obtained.

Fuzzy Comprehensive Evaluation for Road Base Material Selection Based on Analytic Hierarchy Process

2015 ◽  
Vol 667 ◽  
pp. 353-358 ◽  
Author(s):  
Xin Qing Huang ◽  
Xin Qiu ◽  
Lin Wu Chen ◽  
Jin Hong Wu ◽  
Xiao Hua Luo
Keyword(s):  
Analytic Hierarchy Process ◽  
Evaluation Method ◽  
Material Selection ◽  
Load Capacity ◽  
Evaluation Model ◽  
Base Material ◽  
Fuzzy Comprehensive Evaluation ◽  
Analytic Hierarchy ◽  
Road Base ◽  
Hierarchy Process

This paper conducted the EN-1 ionic liquid improved soil comparison and evaluation between the stabilization soil and the stabilized aggregate materials in order to analyze its economic cost and solve the issues of road base material selection with the multiple influence factors. Firstly analytic hierarchy process (AHP) was used to establish the hierarchical structure of the decision index and the weight of each indicator in an index layer. Secondly the fuzzy relation matrix of the evaluation criteria were determined by expert evaluation method, and then a comprehensive fuzzy evaluation model can be established for the selection of road base materials. Finally, based on the comprehensive sequencing of different materials derived from fuzzy mathematical calculations, the optimal selection can be achieved. The proposed evaluation model comprehended the availability of material, construction requirements, load capacity, durability, energy consumption, environment protection and material cost etc. This research provided a theoretical basis as well as an effective and practical solution for the future development of highway construction in China.

The Fuzzy Comprehensive Evaluation of Laser Weapon System Combat Effectiveness

2012 ◽  
Vol 187 ◽  
pp. 298-303
Author(s):  
Hui Li ◽  
Li Hong Guo
Keyword(s):  
Evaluation Method ◽  
Comprehensive Evaluation ◽  
Fuzzy Ahp ◽  
Evaluation Model ◽  
Fuzzy Comprehensive Evaluation ◽  
Weapon System ◽  
Analytic Hierarchy ◽  
Complex Issue ◽  
Combat Effectiveness ◽  
Hierarchy Process

To evaluate the laser weapon system’s combat effectiveness, which is related with so many factors, is a very complex issue. In this paper, by analyzing the factors which influence the laser weapon system, an index system for the laser weapon system comprehensive evaluation of the combat effectiveness is built up. The method of calculating weight, the improved analytic hierarchy process is introduced. The evaluation model of improved fuzzy-AHP is established and the feasibility and the validity of the proposed evaluation method is validated through a practical example.

Livable Index System’s Establishment and Analysis of Old Community Renovation

2013 ◽  
Vol 671-674 ◽  
pp. 2214-2218 ◽  
Author(s):  
Meng Ling Li ◽  
Xing Meng
Keyword(s):  
Analytic Hierarchy Process ◽  
Evaluation Method ◽  
Comprehensive Evaluation ◽  
Evaluation Model ◽  
Fuzzy Comprehensive Evaluation ◽  
Analytic Hierarchy ◽  
Fuzzy Comprehensive Evaluation Method ◽  
Comprehensive Evaluation Method ◽  
Definition Of ◽  
Hierarchy Process

Old community renovation is an important project about the livelihood of people, and the nation is catching the work. This paper firstly analyzes the definition of livable community and the livable condition of old community renovation, establishing the livable index system and the livable evaluation model of old community renovation. The paper employs Analytic Hierarchy Process to determine the index weighs and takes use of Fuzzy Comprehensive Evaluation Method to analyze the case.

Construction Safety Evaluation Based on Extension Theory

2011 ◽  
Vol 368-373 ◽  
pp. 1273-1277
Author(s):  
Mao Sheng Yang ◽  
Lei Liu
Keyword(s):  
Evaluation Method ◽  
Safety Evaluation ◽  
Element Model ◽  
Construction Safety ◽  
Building Construction ◽  
Extension Theory ◽  
Evaluation Index System ◽  
Analytic Hierarchy ◽  
Matter Element Model ◽  
Hierarchy Process

In order to assess the standardization of safety accurately and objectively, this paper establishes the safety evaluation index system for the building construction according to engineering experience. The weight of each index is decided reasonably by the Analytic Hierarchy Process. Based on extension theory, the evaluation matter —element model for evaluation of construction safety is established, and the extensional evaluation method with correlative functions is put forward. Thus, construction safety is systematically evaluated. Finally it verified by project example, the result proves its feasibility.

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