A Causal Network-Based Risk Matrix Model Applicable to Shield TBM Tunneling Projects
نویسندگان
چکیده
The present study compares and analyzes three risk analysis models that are applicable to shield tunnel boring machine (TBM) tunneling, thus proposes an improved matrix model based on the causal networks sustainable projects. advantages disadvantages of compared, structured by analyzing relationship between factors events. Based comparison results, network-based (CN-Matrix model), which complements exploits existing models, is proposed in this paper. Furthermore, suggests a means modifying weighting scores estimation score, permits CN-Matrix determine level more reasonably. Thus, reliable robust compared models.
منابع مشابه
A Neural Network Model Based on Support Vector Machine for Conceptual Cost Estimation in Construction Projects
Estimation of the conceptual costs in construction projects can be regarded as an important issue in feasibility studies. This estimation has a major impact on the success of construction projects. Indeed, this estimation supports the required information that can be employed in cost management and budgeting of these projects. The purpose of this paper is to introduce an intelligent model to im...
متن کاملDeveloping a Risk Management Model for Banking Software Development Projects Based on Fuzzy Inference System
Risk management is one of the most influential parts of project management that has a major impact on the success or failure of projects. Due to the increasing use of information technology (IT) systems in all fields and the high failure rate of IT projects in software development and production, it is essential to effectively manage these projects is essential. Therefore, this study is aimed t...
متن کاملIntroducing hard rock TBMs’ downtime analysis model with reference to past case histories’ data
The study of downtime and subsequently machine utilization in a given project is one of the major requirements of an accurate estimation of TBM performance and daily advance rate. Interestingly, while it is very common to report the components of downtime when discussing a tunneling project in the literature; there has not been a great amount of in-depth studies on this topic in the recent year...
متن کاملTBM Tunneling Construction Time with Respect to Learning Phase Period and Normal Phase Period
In every tunnel boring machine (TBM) tunneling project, there is an initial low production phase so-called the Learning Phase Period (LPP), in which low utilization is experienced and the operational parameters are adjusted to match the working conditions. LPP can be crucial in scheduling and evaluating the final project time and cost, especially for short tunnels for which it may constitute a ...
متن کاملStudy on Linear Vibration Model of Shield TBM Cutterhead Driving System
In this paper, a general linear time-varying multiple-axis (LTVMA) vibration model of shield tunnel boring machine (TBM) cutterhead driving system is established. The corresponding multiple inputs and multiple outputs (MIMO) state-space model is also presented. The linear vibration model is analysed, and the vibration-torque transfer function matrix and the vibration-torque static gain matrix a...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Sustainability
سال: 2021
ISSN: ['2071-1050']
DOI: https://doi.org/10.3390/su13094846