共查询到20条相似文献，搜索用时 36 毫秒
1.
2.
吴开珍 《辽宁广播电视大学学报》2015,(2)
本文阐述了工程项目成本控制现状,并分析工程项目成本控制存在的问题,通过研究资源计划、项目预算编制、价值工程、偏差分析法等工程成本控制方法与手段,对工程项目的质量和成本进行控制分析,尤其是施工阶段成本控制详细措施,以实现工程项目成本、质量、进度的综合管理的目标。 相似文献
3.
李涛 《石家庄职业技术学院学报》2007,19(6):21-23
在介绍国际工程项目管理定义的基础上,对项目进度计划的4种方法进行了分析,并以柏马公路项目为例,分析了CPM进度计划在大型国际工程项目中的应用. 相似文献
4.
进度控制作为工程项目管理中的重要内容,是一个工程项目成功实施的基础和关键因素,直接关系到建筑企业的经济效益和信誉。X商务楼项目是ZT公司承接的一个比较大的工程项目,该项目的进度计划控制有一定的复杂性,研究该项目的进度控制方法有一定的现实意义和方法论价值。 相似文献
5.
水利工程项目特点决定了发生风险概率高,对水利工程风险进行防范,最大限度规避投标阶段道德风险,为确定工程的进度计划提供了直观依据,有一定工程应用实际意义。 相似文献
6.
建筑工程管理主要是对工程进行有效的控制,包括控制建设进度、控制工程造价、控制工程质量,是通过对工程进行总体估测,并制定严密的实施计划而实现的。总体估测是在项目可行性研究的基础上制定工程项目的目标值,同时预 相似文献
7.
进度管理是项目管理的三大职能之一,它在项目管理中的地位和作用,不仅仅关系到施工进度目标能否实现,它还直接关系到工程的质量和成本,工程项目能否在预定的时间内交付使用,并直接关系到项目经济效益.本文结合工程实际情况,从多方面因素进行分析影响施工进度的原因,为了规避进度风险、合理安排生产,对进度控制积极采取一些预防措施,从而达到项目管理进度有效的控制,保证项目目标顺利实现. 相似文献
8.
吴璟 《潍坊教育学院学报》2011,(3):77-78,97
我国的项目管理已经进入了与行业、专业技术相结合的飞速发展时期。但是目前在大多数中小企业中,工程项目的管理还较多地沿用传统的、落后的管理方式,易导致工程项目进度不能如期完成且成本超支,造成时间和资源的严重浪费,影响了企业的竞争力。本文以进度控制理论为指导,对科学编制进度计划和进度控制进行了探讨,为企业按时完成工期的同时能够实现利润目标提供参考。 相似文献
9.
刘丽娜 《闽西职业技术学院学报》2007,9(2):38-41
监理工程师对工程项目进行管理,是施工合同管理的基本内容。为了更好地发挥监理作用,应当在明确与业主关系的基础上,提供充分的条件以确保监理工程师能够对工程的过程、进度、验收和合同风险等方面开展必要的管理。 相似文献
10.
工程项目管理与传统的部门管理相比最大特点是项目管理注重于综合性管理,工程项目管理最基本的职能有:计划、组织及评价与控制.项目管理必须以合同为依据,管理为主线,加强工程质量,工程进度,工程成本三大目标的控制,项目管理工作有严格的时间期限,进度控制和成本管理常对工程管理产生很大的压力. 相似文献
11.
The methodology of visual simulation for a tunnel engineering construction schedule is presented. Visualization of simulation model, calculation and result of construction schedule simulation is realized, and the construction simulation and the resource optimization of tunnel engineering are made. A risk analysis and a decision-making method of tunnel engineering construction schedule based on visual simulation are presented. Furthermore, using S curve theory and schedule management method, the real-time management and control method of tunnel engineering construction based on visual simulation is presented. The application to the tunnel engineering construction schedule analysis and management shows the feasibility and effectiveness of the method presented in this paper. 相似文献
12.
Pigeons were trained on a multiple schedule in which separate concurrent schedules were presented in the two components of the schedule. During one component, concurrent variable-interval 40-sec variableinterval 80-sec schedules operated. In the second component, concurrent variable-interval 40-sec variableinterval 20-sec schedules operated. After stable baseline performance was obtained in both components, extinction probe choice tests were presented to assess preference between the variable-interval 40-sec schedules from the two components. The variable-interval 40-sec schedule paired with the variableinterval 80-sec schedule was preferred over the variable-interval 40-sec schedule paired with the variableinterval 20-sec schedule. The subjects were also exposed to several resistance-to-change manipulations: (1) prefeeding prior to the experimental session, (2) a free-food schedule added to timeout periods separating components, and (3) extinction. The results indicated that preference and resistance to change do not necessarily covary. 相似文献
13.
时间、费用和质量是项目管理中的三大控制目标 ,而通常对于时间和费用风险的控制与管理则分别进行 ,往往由于不合理的资金安排导致工期的延误 ,或由于进度的风险造成资金困难 .为了能够同时对工期和费用风险进行有效的控制 ,建立了基于计划预算值、挣得值和实际支出值的时间和费用风险联合控制模型 ,并引入对于整个项目和单个工序的偏差分析方法 .通过一个具体的实例分析 ,可看出该模型的实用性 .另外 ,对于模型中资金流的优化 ,应根据项目的具体情况采用适当的优化方法 ,而且 ,为了有效地采用该模型进行项目的时间和费用联合控制 ,应在施工现场建立充分有效的期间数据报告系统 相似文献
14.
The parameters of existing roller-compacted concrete (RCC) dam construction simulation are usually fixed based on experience while the actual construction conditions of an RCC dam change during the process of the project. The simulation accuracy of an RCC dam is therefore reduced because the change has not been considered. A new method for RCC dam construction simulations based on real-time monitoring is presented in this paper. First, real-time monitoring technology is used to collect and analyze the actual construction information. Second, meteorological data obtained from the real-time monitoring system are analyzed using the fuzzy average function method, and the weather conditions of the next stage are forecasted. Then the construction schedule simulation model is updated via the Bayesian update method. Results of the analysis are used as the input to the construction simulation parameters, and the construction simulation is performed. A real-world engineering example is presented to compare the simulation results with the actual construction schedule. The results demonstrate that the method can effectively improve the accuracy and real-time performance of construction simulations. 相似文献
15.
A choice and a conditioned suppression procedure were used to assess concurrently the positive and negative properties of stimuli within a signaled shock schedule, Occasional shocks were presented to Ss responding on a variable-interval food schedule. Ss could choose whether shocks occurred alone or whether they were preceded by a 1-min signal. All Ss chose the signaled shock condition over the unsignaled one, even though food reinforced responding in the presence of the signal was suppressed. Rate of responding for food varied across stimulus conditions, with the lowest rate in the presence of the signal and the highest rate in its absence. An intermediate rate occurred under the unsignaled shock schedule. A safety analysis was applied to the data. 相似文献
16.
QI Shen-jun DING Lie-yun LUO Han-bin 《重庆大学学报(英文版)》2007,6(3):177-186
Lean construction has been newly applied to construction industry. The best performance of a project can be achieved through the precise definition of construction product, rational work break structure, lean supply chain, decrease of resources waste, objective control and so forth. Referring to the characteristics of schedule planning of construction projects and lean construction philosophy, we proposed optimizing methodology of real-time and dynamic schedule of construction projects based on lean construction. The basis of the methodology is process reorganization and lean supply in construction enterprises. The traditional estimating method of the activity duration is fuzzy and random;however, a newly proposed lean forecasting method employs multi-components linear-regression, back-propagation artificial neural networks and learning curve. Taking account of the limited resources and the fixed duration of a project, the optimizing method of the real-time and dynamic schedule adopts the concept of resource driving. To optimize the schedule of a construction project timely and effectively, an intellectualized schedule management system was developed. It can work out the initial schedule, optimize the real-time and dynamic schedule, and display the schedule with the Gant Chart, the net-work graph and the space-time line chart. A case study was also presented to explain the proposed method. 相似文献
17.
高校学生活动是高校思想政治教育工作的重要载体,对营造良好的校园文化氛围,提升学生的综合素质,培养兴趣爱好有直接影响,文章基于项目管理原理,对高校学生活动进行项目定义,制定项目目标,进行工作分解,对项目的质量、成本、进度以及项目的运行风险进行控制,对项目实施效果进行评估和有效性分析。 相似文献
18.
Alba E. Mustaca Fabian Gabelli Mauricio R. Papini Peter Balsam 《Learning & behavior》1991,19(2):125-138
Appetitive contextual conditioning in rats and ringdoves was investigated in six experiments. In Experiment 1, differential contextual training produced greater anticipatory activity in rats in the presence of a context paired with food than it did in rats in the presence of a different context in which food was never presented. Furthermore, the rats showed a preference for the context associated with food when they were given a simultaneous choice test between contexts. In Experiment 2, rats were more active in and preferred a context associated with a variable-time 30-sec (VT30) schedule as opposed to a VT180 schedule. Experiment 3 was a between-subjects replication of the previous experiment. As expected, rats exhibited significantly more anticipatory activity in a context in which food had been presented on a VT30 schedule than they did in a context in which food had been presented on a VT180 schedule. Experiment 4 showed that anticipatory activity was a reflection of context-US associations in ringdoves, and in Experiments 5 and 6, ringdoves also exhibited an inverse relationship between the. amount of anticipatory activity and the length of the interreinforcement interval (IRI). These results reveal a relation between ERI and contextual conditioning opposite from that obtained in studies of aversive conditioning. 相似文献
19.
研究预防性周期维护策略下再制造系统中可中断和不可中断2类工件的单机调度问题.以最小化完工时间为目标,提出了LPT-LS算法,该算法首先按LPT(longest processing time)规则安排不可中断工件,然后按LS(list scheduling)规则安排可中断工件.并根据可中断工件的总加工时间(记为S2)分3种情况证明了该算法的最坏情况比,结论如下:当S2大于按LPT规则安排不可中断工件后机器的空闲时间时,最坏情况比为1;当S2介于分别按LPT规则和OPT(最优排序)规则安排不可中断工件后机器的空闲时间之间时,最坏情况比小于2;当S2小于按OPT规则安排不可中断工件后机器的空闲时间时,最坏情况比小于2.最后通过算例验证了结论的正确性. 相似文献
20.
William Timberlake 《Learning & behavior》1979,7(3):277-288
Separation of the contingent and noncontingent effects of a schedule on amount of instrumental responding is desirable but difficult in schedules that involve instrumental and contingent responses that are either highly probable or very similar. Three studies in which rats were required to lick a solution of .1% saccharin for access to a preferred solution of .4% saccharin showed that neither single nor paired operant baselines of the instrumental response allowed accurate separation of the contingent and noncontingent effects of a fixed-ratio schedule. Two within-subject yoking procedures provided the best baselines of noncontingent effects: the massed baseline measured amount of .1% licking when each subject received free access to the total amount of .4% licking it obtained at asymptote under the schedule; the matched baseline measured .1% licking when each subject received the same access to the .4% solution, but presented in the intermittent pattern obtained during the schedule. Of the three algebraic models used to predict noncontingent effects, the substitution model was most promising, but still not adequate. The procedure of a between-subjects yoked control was also not effective. 相似文献