国家电网工程建设信息化管理模式主要以项目建设业务流为主线,当前BIM技术的引入给建设管理带来新的手段和方式。分析传统信息化管理模式的特点,遵循实用、无感、可用、智能、整体五个基本原则,重新设计电网工程在建筑信息模型(building...国家电网工程建设信息化管理模式主要以项目建设业务流为主线,当前BIM技术的引入给建设管理带来新的手段和方式。分析传统信息化管理模式的特点,遵循实用、无感、可用、智能、整体五个基本原则,重新设计电网工程在建筑信息模型(building information modeling,BIM)环境下数字化建设管理模式,提出“电网工作包”的新理念,设计新模式下数字化管理平台的整体框架,对比分析两种管理模式的应用差异并在某新区电网进行实现和应用,验证新管理模式能有效提升电网建设管理水平。展开更多
The occurrence of storm surge disaster is often accompanied with floodplain, overflow, dike breach and other complex phenomena, while current studies on storm surge flooding are more concentrated on the 1D/2D numerica...The occurrence of storm surge disaster is often accompanied with floodplain, overflow, dike breach and other complex phenomena, while current studies on storm surge flooding are more concentrated on the 1D/2D numerical simulation of single disaster scenario(floodplain, overflow or dike breach), ignoring the composite effects of various phenomena. Therefore, considering the uncertainty in the disaster process of storm surge, scenario analysis was firstly proposed to identify the composite disaster scenario including multiple phenomena by analyzing key driving forces, building scenario matrix and deducing situation logic. Secondly, by combining the advantages of k-ω and k-ε models in the wall treatment, a shear stress transmission k-ω model coupled with VOF was proposed to simulate the 3D flood routing for storm surge disaster. Thirdly, risk degree was introduced to make the risk analysis of storm surge disaster. Finally, based on the scenario analysis, four scenarios with different storm surge intensity(100-year and 200-year frequency) were identified in Tianjin Binhai New Area. Then, 3D numerical simulation and risk map were made for the case.展开更多
文摘国家电网工程建设信息化管理模式主要以项目建设业务流为主线,当前BIM技术的引入给建设管理带来新的手段和方式。分析传统信息化管理模式的特点,遵循实用、无感、可用、智能、整体五个基本原则,重新设计电网工程在建筑信息模型(building information modeling,BIM)环境下数字化建设管理模式,提出“电网工作包”的新理念,设计新模式下数字化管理平台的整体框架,对比分析两种管理模式的应用差异并在某新区电网进行实现和应用,验证新管理模式能有效提升电网建设管理水平。
基金Supported by the National Basic Research Program of China("973" Program,No.2013CB035906)Natural Science Foundation of Tianjin(No.JCYBJC19500)the Foundation of Innovative Research Groups of National Natural Science Foundation of China(No.51321065)
文摘The occurrence of storm surge disaster is often accompanied with floodplain, overflow, dike breach and other complex phenomena, while current studies on storm surge flooding are more concentrated on the 1D/2D numerical simulation of single disaster scenario(floodplain, overflow or dike breach), ignoring the composite effects of various phenomena. Therefore, considering the uncertainty in the disaster process of storm surge, scenario analysis was firstly proposed to identify the composite disaster scenario including multiple phenomena by analyzing key driving forces, building scenario matrix and deducing situation logic. Secondly, by combining the advantages of k-ω and k-ε models in the wall treatment, a shear stress transmission k-ω model coupled with VOF was proposed to simulate the 3D flood routing for storm surge disaster. Thirdly, risk degree was introduced to make the risk analysis of storm surge disaster. Finally, based on the scenario analysis, four scenarios with different storm surge intensity(100-year and 200-year frequency) were identified in Tianjin Binhai New Area. Then, 3D numerical simulation and risk map were made for the case.
