对在工程项目集成化管理中应用IRP的研究

通过介绍IRP理论及其核心理念,结合工程项目集成化管理研究理论,提出了IRP在工程项目集成化管理中应用的基本模型框架,并指出了IRP在工程项目集成化管理中的应用前景。     

Meshing and integrated optimisation for free-form reticulated shells

Presented herein is a study on the meshing and the integrated optimisation technique combined with configuration and mechanical behaviour for free-form reticulated shells. It focuses on the realisation of the practical layouts of meshes and improves the evaluation criteria for grid quality. For the preparation for the integrated optimisation, the bicubic quasi-uniform B-spline surface is applied to describe the free-form surface, and the energy method is introduced to smooth free-form reticulated shell through fairing factors. In order to perform optimisation automatically, a novel integrated optimisation system is established including fairing, finite element analysis (FEA) and optimisation programme modules. Based on the relationship between the fairing factors and the structural configuration, the zoned fairing factors are chosen as design variables (DVs). The FEA module is introduced to analyse and calculate the total structural strain energy of the structural components. By using the optimisation module, the optimum structural configuration can be found when the total structural strain energy reaches the minimum. Numerical results demonstrate that the proposed optimisation technique is convenient and feasible.     

云南省消防工程安全管理综合信息系统

根据云南省消防工程安全管理的现状,通过对消防工程安全管理的需求分析,开发了基于B/S体系的消防工程安全管理综合信息系统,实现了消防工程安全“一体化”网络管理.系统以消防工程建设为主线,对各类消防工程的设计、施工、检测、维管的业务工作进行管理,把消防工程安全每一重要细节落实到每一个网格中,使监管工作细致化、明确化.系统将有助于提升云南省消防工程安全管理的信息化、规范化,提高消防安全管理工作的水平和效率.     

Extension of dynamic programming models for management optimisation from single structure to multi-structures level

The aim of this article is the management optimisation (inspection, maintenance and rehabilitation (IM&R)) of a group of structures. It is supposed that the optimisation is constrained by limited available budget at the beginning of each time period during the entire time horizon thus creating an economical dependence between the decisions related to each of the structures. A Lagrangian relaxation technique is used for the extension of existing dynamic programming methods from single structure to multi-structures level. The methodology is illustrated by using a Generalised Partially Observable Markov Decision Process having a decision tree composed of a sequence of two decisions at the beginning of each time period, namely an inspection decision followed by a maintenance action decision. A numerical example concerning the optimisation of IM&R of 16 different bridges is presented.     

Improved thermal building management with the aid of integrated dynamic HVAC simulation

Building simulation is a tool that has only recently been recognised as a possible utility to accomplish enhanced building management (Build. Environ. 37 (8–9) (2002) 891). Thermal management however is often neglected. This is due to the complex nature of problems associated with determining the effect of changes to heating ventilating and air-conditioning (HVAC) system properties (Build. Environ. 32(2) (1997)). Effective thermal management is nevertheless a major concern since energy cost and operation cost of buildings are directly influenced by how well the HVAC systems perform (Occup. Med.—State Art Rev. 4(4) (1989)). The aim of this study was to introduce the process of integrated dynamic HVAC simulation as a viable tool to improve thermal management of buildings. This entails both improved maintenance and energy utilisation. The applicability of the integrated simulations was investigated by means of a case study for which a well-verified simulation model was constructed and discussed in a previous article. To illustrate the process of improved management three different scenarios are investigated. Finally the conclusion is drawn that improved management is indeed possible with the aid of integrated simulation.     

Challenges in developing an integrated catchment management model

Directives and policies increasingly call for more integrated management of land and water. Frameworks such as integrated catchment management may address these calls, and yet their implementation requires decisions to be taken under conditions of extreme complexity and uncertainty. This paper summarises a participatory framework through which decision‐makers, experts and system modellers can collaboratively develop an integrated model to support such decisions. A feasibility study showed the potential of the framework. An operational version of the model, able to analyse the effects of 50 management options on 20 indicators, is estimated to require in the order of 225 man‐months from system modellers, alongside substantial inputs from stakeholders. The significant technical challenges confronting such an exercise may be overshadowed by the institutional challenges, including the fundamental question of whether organisations are truly committed. However, the reward for overcoming such challenges is the opportunity to achieve genuine improvements in the social, economic and environmental quality of our catchments.     

Using fluvial geomorphology to inform integrated river basin management

Recent years have seen a trend towards larger scale, multidisciplinary approaches to river management. This reflects changes in policy and legislation, particularly the drive towards integrated river basin management as required by the EC Water Framework Directive. Fluvial geomorphology is a discipline that links the physical function of the river to its ecological status, and thus has a fundamental role to play in future river basin management. This is becoming more widely recognised at a project level, as well as nationally and internationally. This paper will demonstrate, using the case study of the Axe Catchment Fluvial Audit, how fluvial geomorphology can be successfully applied to inform river basin management. The outputs from the project are described together with some of the key limitations and lessons learned.     

A multi-objective optimisation approach for sustainable pavement management

Addressing the multidimensional challenges involved in advancing the sustainability of pavement systems requires the development of optimisation-based decision support system (DSS) for pavement management with the capability to identify optimally sustainable pavement maintenance and rehabilitations (M&R) strategies. The main objective of this research work is to develop a multi-objective optimisation framework that hosts a comprehensive and integrated pavement life cycle costs–life cycle assessment model that covers the pavement’s whole life cycle, from the extraction and production of materials to construction and maintenance, transportation of materials, work-zone traffic management, usage and end-of-life. The capability of the proposed DSS is analysed in a case study aiming at investigating, from a full life cycle perspective, the extent to which a number of pavement engineering solutions are efficient in improving the environmental and economic aspects of pavement sustainability, when applied in the management of a road pavement section. Multiple bi-objective optimisation analyses considering accordingly agency costs, user costs and greenhouse gas emissions were conducted based on a multi-objective genetic algorithm. Pareto fronts were obtained for each analysis, originating a set of non-dominated maintenance and rehabilitation solutions. Posteriorly, a multi-criteria decision analysis method was used to find the best compromise solution for pavement management.     

Landscape elements as a basis for integrated water management

Water scarcity and flooding associated to climate variability and poor water use efficiency affect the liveability of our cities and their water security in the long term. As advocated by the Integrated Water Management (IWM) model, a transition towards arrangements that, besides centralized water infrastructures, also include onsite and efficient organization of water flows is required. A Landscape Elements Water Management Strategy (LEWMS) has been outlined to immediately guide the exploration of potential source control solutions for the recurrent spatial elements of a given urban landscape (roofs, gardens, parks, etc.) and the result of their reiteration at the catchment level. In the LEWMS, spatial configurations, water flow patterns and stakeholder’s arrangements generated by the spread of different decentralized options are drawn up to allow their comparison. Tested in the Brussels-Capital Region (BCR), the analysed macro effects of micro-scale landscape-based practices are gaining the attention of the local institutions.     

基于AQUIS的供水管网仿真及运营管理系统开发研究

以某市一独立试点区域的供水管网为研究对象,通过分析建模基础资料的需求及管网建模完整流程,论述了基础资料完整程度、基础模型创建及模型组态校核的重要性.从开发研究的目标、开发系统设计架构及关键技术问题等角度,分析了将水力仿真理论、计算机信息技术和企业管理方法等不同学科知识相结合,所建立的城市供水管网仿真与运营管理系统的优势...     

浅析通信工程项目管理系统集成服务

从决策支持、核心网络平台建设、空间数据基础设施建设、综合决策层建设方面对如何实现通信工程的信息化和综合集成化进行了探讨,并总结了系统的实现方法及特点,以期提高通信工程项目管理系统信息化建设和发展水平。     

浅谈建筑太阳能热水系统一体化工程监理

主要探讨了建筑太阳能热水系统一体化工程监理工作,从建筑太阳能热水系统一体化工程施工准备、施工过程和施工质量验收等方面分别介绍了监理的主要工作内容及控制要点,阐述监理如何做好建筑太阳能热水系统一体化工程监理,以期指导实践。     

小区供水管网信息系统

介绍了小区供水管网信息系统的产生背景和应用,详细地阐述了小区供水管网信息系统所包含的各个系统,最后总结了建立有特色的小区给水管网信息系统的意义,以推广小区供水管网信息系统的应用。     

EAM2003设备管理信息系统在广域网中的应用

主要阐述了EAM2003施工设备信息管理系统在广域网中应用的方案,从总体设计和主要功能的实现两方面就该方案进行了深入地探讨,从而为大型施工企业的设备管理提供方便。     

管理信息系统在工程项目成本管理中的运用

分析了工程项目成本管理的难点,提出运用管理信息系统在项目成本管理中的重要性,介绍了使用项目成本管理软件进行项目成本控制的流程、系统结构及其实施策略,以达到降低成本、提高效率、增加效益的目的。     

Key control handles in integrated urban wastewater systems for improving receiving water quality

ABSTRACT

There is an increasing interest in modelling and control of integrated urban wastewater systems (UWS). Nevertheless, given the multiple interactions between the sub-systems – catchment, sewer system, wastewater treatment plant (WWTP) and receiving water system – the selection of effective control handles for improving receiving water quality is a major challenge. In this paper, a systematic study to identify the most important control handles in an UWS is presented. The Benchmark Simulation Model for Urban Wastewater Systems (BSM-UWS) is selected as a virtual case-study. Morris screening is used to perform global sensitivity analysis. Results indicate that, for the BSM-UWS layout, while river dissolved oxygen quality (T_exc,DO) is influenced by multiple control handles both in the sewer system and WWTP, river un-ionized ammonia quality (T_exc,NH3) is mainly influenced by WWTP control handles. The study highlights the need to perform simulations for at least 1 year when determining key control handles for UWS.     

A simplified management procedure for bridge network maintenance

Structural problems due to corrosion, ageing, durability, aggressive environments, materials defects, lack of ductility and unforeseen behaviour under seismic loads may significantly compromise the resistance and safety of bridges. Scheduled maintenance of bridges becomes important to ensure complete serviceability of the road network. Among existing bridge management systems (BMSs), this work is a contribution to the evaluation criteria of bridge condition by means of visual inspection, prediction of future structural condition and planning of maintenance intervention. After a brief review of some existing BMSs, a simple new procedure for evaluation of bridge condition by means of visual inspection, aimed at general planning of maintenance in a BMS framework, is presented in this paper. This procedure is applied to stock, including about 200 bridges and viaducts, of the Veneto region road network in the north-eastern part of Italy, and is then discussed.     

Estimating irrigation water demand for green spaces in humid areas: seeking a sustainable water management strategy

Quantifying the irrigation water demand of green spaces (IWDG) is an important part of smart urban water management. However, the IWDG in humid cites is not well characterized. Moreover, the alteration of natural hydrological processes caused by urbanization leading to the dependence of green spaces on irrigation is becoming more common. To better understand the IWDG in humid areas, we developed an estimation model and used the Yangtze River Delta in China as a case study. Results showed that the amount of water required by the green spaces in the Yangtze River Delta was approximately 354 × 10⁶ m³, which was equivalent to 12% of the urban residential water consumption in 2011. This study also investigated the spatial-temporal changes of urban green spaces and estimated their effects on irrigation water demand. These findings provide policymakers an integrated view of the water demand of green spaces associated with sustainable management.     

二次供水泵房远程监控系统的构建

介绍了二次供水泵房远传监控系统的组成、功能及应用实例.该系统的应用促进了二次供水的科学管理,有助于预防和发现设备隐患,减少和杜绝设备故障,提高运行管理工作效率,降低运行管理成本.