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Planning of construction projects: a managerial approach

机译:建设项目计划:管理方法

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摘要

The construction industry, in contrast to the manufacturing industries, is characterized by an unstable and complex project planning environment. Moreover, construction still is an unsustainable industry, especially focusing on economic and ecological aspects of sustainability. From the economic perspective it was revealed that construction projects are often delayed and over budget, i. e. they suffer poor performance. Poor performance can be traced back to project planning procedures. Main causes for project failures are thereby insufficient scheduling with respect to resource allocation to project activities and the non-availability of material on-site at the time required. Methods applicable to tackle these deficiencies can be found in sophisticated project planning procedures taking resource limitations and the classification of project resources into account and in supply chain management (SCM) known from the manufacturing industries to increase material availability on site. Thereby, these methods had to be adapted to the particularities of the construction industry. With respect to the ecological dimension of sustainability, the construction industry can be regarded as major polluter to the environment due to its high construction and demolition waste accumulation and its high energy intensity. Numerous regulations and guidelines on the handling of construction and demolition (C&D) waste exist, and research has already been undertaken. Regulations mainly refer to the treatment of C&D waste. Research already undertaken addresses the development of methods for the recovery of C&D waste, especially from underground engineering, and architectural and design specifications, for instance, the use of environmentally sound materials, design for deconstruction, the use of renewable energies, and the design of passive houses. Lacks of knowledge exist especially when it comes to the organization of deconstruction projects as well as to the organization of related logistic activities, necessary to establish closed-loop material flows. For the ecologically end-of-life management of construction outputs, models for project planning introduced can be adapted to the particularities of deconstruction projects taking different recovery options in dependency on the deconstruction technique into account. For the organization of the logistic processes from the deconstruction site back to recovery facilities, formal descriptions taken from operations management help to structure and describe the related planning problems in detail.
机译:与制造业相反,建筑业的特点是不稳定且复杂的项目计划环境。此外,建筑仍然是不可持续的行业,尤其​​是关注可持续性的经济和生态方面。从经济角度看,人们发现建设项目经常被延迟和超出预算,即e。他们表现不佳。绩效不佳可以追溯到项目计划程序。因此,导致项目失败的主要原因是,在为项目活动分配资源方面安排的时间不够,以及在所需时间无法获得现场材料。解决这些缺陷的方法可以在考虑资源限制和项目资源分类的复杂项目计划程序中找到,也可以在制造行业已知的可提高现场物料可用性的供应链管理(SCM)中找到。因此,这些方法必须适应建筑行业的特殊性。在可持续性的生态方面,由于建筑业的拆建废物堆积量大,能源强度高,可以将其视为对环境的主要污染源。关于处理拆迁废物的法规和指南有很多,并且已经进行了研究。法规主要涉及处理拆建废物。已经开展的研究涉及回收C&D废物的方法,特别是从地下工程以及建筑和设计规范中回收C&D废物的方法,例如,使用无害环境的材料,用于解构的设计,使用可再生能源以及设计垃圾。被动式房屋。尤其是在涉及解构项目的组织以及相关物流活动的组织方面,知识的匮乏是建立闭环物料流所必需的。为了对建筑产出进行生态报废管理,可以将引入的项目规划模型与解构项目的特殊性相适应,并根据解构技术考虑不同的恢复方案。对于从解构地点到恢复设施的物流流程的组织,从运营管理中获取的正式描述有助于详细构造和描述相关的计划问题。

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    Sunke Nicole;

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  • 年度 2009
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  • 正文语种 eng
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