scholarly journals Research on multi-dimensional analysis model of drilling operations safety evaluation system

2020 ◽  
Vol 474 ◽  
pp. 022012
Author(s):  
Xu Ji Lin ◽  
Shen Jian Kun ◽  
Qin Liu ◽  
Tang Zhi Jie ◽  
Ju Yueqing ◽  
...  
Keyword(s):  
Dimensional Analysis ◽  
Evaluation System ◽  
Safety Evaluation ◽  
Analysis Model ◽  
Drilling Operations

Fuzzy Mathematical Safety Evaluation of Coal Mine Gas Accident

2012 ◽  
Vol 433-440 ◽  
pp. 2712-2715
Author(s):  
Xiao Li Liu ◽  
Zhi Ye Zhang
Keyword(s):  
Coal Mine ◽  
Evaluation System ◽  
Comprehensive Evaluation ◽  
Risk Index ◽  
Safety Evaluation ◽  
Fuzzy Comprehensive Evaluation ◽  
Accident Risk ◽  
Popular Method ◽  
Coal Mine Gas ◽  
Mine Gas

Now the coal mine gas risk index and evaluation system has a lot of deficiency. The paper establishes a coal mine gas risk index system and explains the meaning of each index on the basis of analysis of gas accident for recent years. Fuzzy comprehensive evaluation has become an effective and popular method, so the paper evaluates the coal mine gas accident risk using fuzzy mathematical safety evaluation, and takes this method in six mines of one group, at last the paper provides some suggestions for this method

scholarly journals Research on the Evaluation Index System and the Grey Clustering Analysis Model of Teaching Quality of Physical Education in Higher Education

2015 ◽  
Vol 10 (8) ◽  
pp. 59 ◽  
Author(s):  
Baoquan Wu
Keyword(s):  
Physical Education ◽  
Clustering Analysis ◽  
Evaluation System ◽  
Quality Evaluation ◽  
Teaching Quality ◽  
Colleges And Universities ◽  
Evaluation Index System ◽  
Analysis Model ◽  
Grey Clustering

Teaching quality evaluation of physical education usually involves multiple influence factors with grey and uncertain information. This brings about limitations to effective evaluation of teaching quality of physical education in colleges and universities. Thus, this paper draws merits from previous research and proposes a teaching quality evaluation system and model of physical education in colleges and universities. First, based on real situations, grey categories of evaluation state for physical education teaching quality are established. The definite weighted functions of grey category of evaluation state are confirmed. Specific steps of the teaching quality evaluation model based on grey clustering analysis are accounted for. Finally, a case study is introduced to verify the model. This model enlightens a new way to evaluate teaching quality of physical education in colleges and universities.

Defective Pipeline Fatigue-Life Prediction Using Failure Assessment Diagram Technique

2004 ◽  
Author(s):  
Jinheng Luo ◽  
Xinwei Zhao ◽  
Qingren Xiong ◽  
Chunyong Huo
Keyword(s):  
Fatigue Life ◽  
Evaluation System ◽  
Life Prediction ◽  
Safety Evaluation ◽  
Load Ratio ◽  
Test System ◽  
Full Scale ◽  
Oil Pipeline ◽  
Failure Assessment Diagram ◽  
Failure Assessment

The life prediction, whose results can be used to define the inspection, repair or replacement cycle of in-service pipeline, is a main component of safety assessment of gas and oil pipeline. At present, failure Assessment Diagram (FAD) technique has been widely used in quantitative engineering safety evaluation system of pipeline that contains crack-like flaws. In past work, the authors developed a very useful model to predict the fatigue life of defective pipeline and established a computer calculating method. Based on FAD technique, toughness ratio and load ratio are calculated repeatedly with every crack increment in the model. With the self-developed full-scale test system, the full-scale pipe fatigue test was collected to verify the applicability of this method.

scholarly journals Real-Time Safety Evaluation for Slope during Construction Using Numerical Forecast and Sensor Monitoring Platform

Sensors ◽  
2018 ◽  
Vol 18 (9) ◽  
pp. 2978 ◽  
Author(s):  
Sherong Zhang ◽  
Dejun Hou ◽  
Chao Wang ◽  
Xuexing Cao ◽  
Fenghua Zhang ◽  
...  
Keyword(s):  
Numerical Model ◽  
Real Time ◽  
Evaluation System ◽  
Large Scale ◽  
Safety Evaluation ◽  
The Real ◽  
Study Results ◽  
Data Feedback ◽  
Numerical Forecast ◽  
Slope Safety

Geology uncertainties and real-time construction modification induce an increase of construction risk for large-scale slope in hydraulic engineering. However, the real-time evaluation of slope safety during construction is still an unsettled issue for mapping large-scale slope hazards. In this study, the real-time safety evaluation method is proposed coupling a construction progress with numerical analysis of slope safety. New revealed geological information, excavation progress adjustment, and the support structures modification are updating into the slope safety information model-by-model restructuring. A dynamic connection mapping method between the slope restructuring model and the computable numerical model is illustrated. The numerical model can be generated rapidly and automatically in database. A real-time slope safety evaluation system is developed and its establishing method, prominent features, and application results are briefly introduced in this paper. In our system, the interpretation of potential slope risk is conducted coupling dynamic numerical forecast and monitoring data feedback. The real case study results in a comprehensive real-time safety evaluation application for large slope that illustrates the change of environmental factor and construction state over time.

scholarly journals Research on Safety Evaluation Method of Integrated Optical Storage and Charging Station

2021 ◽  
Vol 237 ◽  
pp. 02014
Author(s):  
Jing Zhang ◽  
Junguo Jia ◽  
Hui Huang ◽  
Yi Long ◽  
Taoyong Li ◽  
...  
Keyword(s):  
Evaluation System ◽  
Evaluation Method ◽  
Projection Pursuit ◽  
Safety Evaluation ◽  
Charging Station ◽  
Safety Risks ◽  
Charging Current ◽  
Charging Mode ◽  
Influence Degree ◽  
Design Factors

This paper studies the correlation between charging process performance indicators and charging safety of Solar-Energy storage-Charge station, analyses the influence of environmental factors, technical factors, design factors, management factors and user factors on charging process safety of energy stations. The projection pursuit algorithm is used to evaluate the influence degree of each parameter on the safety of charging process; through the establishment of charging safety evaluation system, the safety risks of battery damage and even fire caused by excessive charging current and high battery temperature are identified. The monitoring parameters corresponding to the charging safety state are determined. According to the different battery types adopted by different vehicle models, the corresponding charging mode is determined. According to the monitoring results of key data of the core equipment in the charging process, such as charging current, charging voltage, battery temperature, etc., the charging strategies of different vehicle models and different battery types are analysed, which provides reference for the safe operation of charging process.

Design of Expressway Construction Safety Evaluation System Based on AHP

2014 ◽  
Vol 989-994 ◽  
pp. 5300-5303
Author(s):  
Hai Lin Guo ◽  
Zhi Ning Wang ◽  
Li Xin Zhang ◽  
Liu Xiao
Keyword(s):  
Evaluation System ◽  
Safety Evaluation ◽  
Construction Safety ◽  
Security Evaluation ◽  
Scoring Method ◽  
Analytic Hierarchy ◽  
Modern Computer ◽  
The Index System ◽  
Expressway Construction ◽  
Hierarchy Process

Chinese expressway construction security situation is grim at present. Based on the index system, determining the importance of every factor on each level by the experts scoring method and 1-9 scale law. A expressway construction security evaluation system is designed and developed using Analytic Hierarchy Process (AHP) and the modern computer-aided technology, and finally validated. The results show that this system accurately indicated the safety situation of expressway construction, and realize systematism, standardization and automatization of safety evaluation.

scholarly journals Safety evaluation for bridge crane based on FTA and AHP

2018 ◽  
Vol 207 ◽  
pp. 03014
Author(s):  
Shuai Fei ◽  
Xiangdong Li ◽  
Yali Fan
Keyword(s):  
Evaluation System ◽  
Fault Tree Analysis ◽  
Safety Evaluation ◽  
Safety Performance ◽  
Use Case ◽  
Bridge Crane ◽  
Analytic Hierarchy ◽  
Development Status ◽  
Hierarchy Process ◽  
Use Case Diagram

Starting from the development status of the lifting machinery industry, this paper analyzes the data about safety accidents of bridge cranes, and identifies the assessment indicators affecting the safety performance of bridge cranes based on fault tree analysis (FTA), including fatigue factors, human factors, environmental factors, and management factors. Then, the weights of safety evaluation indicators are determined based on analytic hierarchy process (AHP). Finally, the safety evaluation system is established and demonstrated with use case diagram and role flow chart.

Research on Safety Evaluation System of Reinforced Concrete Structures Based on the Blasting Damage

2014 ◽  
Vol 1065-1069 ◽  
pp. 1217-1221
Author(s):  
Guo Quan Zhu ◽  
Jun Lin Tao ◽  
Xiao Ling Liu
Keyword(s):  
Reinforced Concrete ◽  
Evaluation System ◽  
Concrete Structures ◽  
Safety Evaluation ◽  
Security Level ◽  
Reinforced Concrete Structures ◽  
Element Analysis ◽  
Database Technology ◽  
Maximum Crack ◽  
Evaluation Platform

The safety of reinforced concrete structures will be impacted by the explosions. Using the calculations result of finite element analysis software, combining with database technology, a security level evaluation platform of blasting damage in reinforced concrete structures is established. The platform assesses the safety of damaged structure from the remaining bearing capacity, maximum crack width and maximum deflection, etc. It gives the security level from different aspects of the structure and the integrated security level, and repair advice.

Sign in / Sign up

Export Citation Format

Share Document