凤凰商业服务中心地下室顶板施工道路设计技术研究与应用

凤凰商业服务中心项目地下室面积约4万m2,东边紧邻规划施工中的市政道路,现场无法形成环形施工道路,为了解决施工水平交通运输的难题,创造性地提出了在地下室顶板上设置施工道路的设计与施工技术。同时为避免对地下室结构安全以及使用功能产生损害,通过对平面布置原则以及道路设计进行全面研究,总结出地下室顶板上设置施工道路工程的成功施工经验,可为解决类似工程问题提供参考依据。     

异形深大基坑狭窄场地地下室阶段平面布置优化

为今后其它类似项目方案优化提供参考和借鉴,结合工程实例,介绍了在异形深大基坑狭窄场地地下室阶段的平面布置优化情况。平面布置优化,包括材料堆放场、混凝土浇筑运输通道及浇筑地泵停放点和塔吊平面布置等。通过优化与应用,不仅解决了异形深大基坑狭窄场地地下室阶段的钢筋及模板等加工生产需求、混凝土浇筑及运输通道问题,同时降低了施工成本,实现了施工工材可周转利用,节约了施工工期,且符合绿色施工理念。     

高层住宅建筑工程施工总平面布置探讨

施工总平面图是指导现场施工的总体布置图,也是施工组织设计中一个非常重要的部分.本文笔者结合自身工作实践对某高层建筑项目施工平面布置原则、临时设施布置、临时用水布置等做了简要介绍.     

浅谈大型建设工程项目施工总平面布置与管理

由于大型建设工程项目具有投资规模大、参建单位多、专业工程多、不稳定因素多等显著特点,其施工总平面布置与管理必将成为关系工程进展的关键因素之一。本文以广州亚运城项目为例,介绍了该项目在施工总平面布置与管理方面的思路、经验和方法,对施工总平面布置与管理的原则和具体措施进行了探讨。     

基于改进SLP方法的建筑施工现场平面布置

针对建筑施工现场平面布置中因经验布置导致的物流成本浪费等现象,结合建筑施工现场施工特点和实际限制条件,采用遗传算法和BIM技术改进SLP方法,构建解决建筑施工现场平面布置的模型,实现精细化和可视化的平面布置,为提高施工项目平面布置水平和成本控制能力开辟新途径。     

线性规划方法在规划施工现场总平面布置中的应用

一、施工现场总平面布置和线性规划 施工现场总平面布置是否合理,对施工进度和工程成本有很大影响。 合理的施工总平面布置,需要满足下列两点基本技术经济要求: 1.现场所有一切设备、设施及临时建筑物等的分布,不得妨碍正式永久工程的施工,井须符合劳保安全条件;     

地下室顶板上设置施工道路的施工技术

当前采用大面积地下室结构设计的工程越来越多,为了满足施工水平交通运输的需要,众多工程均采用了在地下室顶板上设置施工道路的措施。但如何避免对地下室结构的损害,以至于造成地下室结构渗漏水,影响地下室结构的使用功能,甚至危及工程的安全性,是施工总平面布置中须仔细考虑的重要问题。通过总结多个需在地下室顶板上设置施工道路工程的成功施工经验,对地下室顶板上设置施工道路可能遇到的共性问题进行分析,并探讨了地下室顶板上设置施工道路的布置原则及相应对策。     

泰州万达广场大型城市综合体项目施工现场平面布置管理

大型城市综合体项目施工总平面布置与管理为关系工程顺利进展的关键因素之一,以泰州万达广场项目为例,探索其总平面管理的经验、思路、方法、途径,在工程实践的基础上对该项目的总平面布置和管理的原则及布置的步骤和要求进行探讨,取得了很好的社会效益和经济效益.     

地下室顶板沉降后浇带提前封闭施工技术

目前地下室外墙后浇带普遍采用防水回填前砌筑或用混凝土板封闭的方式.根据施工现场实际情况,借鉴地下室外墙后浇带提前封闭施工的成功经验,北京雪莲大厦二期工程采取加强后浇带两侧支撑、混凝土盖板覆盖、防水回填土、支模、压力灌注自密实混凝土等措施,达到方便现场平面布置、形成安全消防通道等目的.重点介绍了后浇带封闭、防水施工、顶升配件制作拆除、混凝土浇注等施工工艺.     

BIM三维平面布置技术在安全管理领域的研究与应用

采用BIM等核心技术,通过将总平图矢量图形智能识别和转化,并采用参数化驱动构件,实现传统平面布置图快速转化为三维平面布置图及施工模拟。BIM三维平面布置可应用于施工前期阶段的安全规划、现场临水临电安全设计、深基坑土方开挖方案设计及开挖模拟、群塔作业方案设计及模拟,施工阶段安全培训和现场危险源识别与排除等方面。     

伊犁新天年产20亿立方米煤制天然气项目总图优化研究

伊犁地区发展煤制天然气具有得天独厚的自然条件,是国家重要的煤制天然气示范项目基地。伊犁新天年产20亿立方米煤制天然气项目位于伊犁河谷的伊宁市,占地约2000000 m2(3000亩)。本文结合项目拟建场址的自然条件,重点研究了场址的竖向布置和总图平面布置。合理利用地形,将全厂划分为十几个阶梯式平台,有效降低工程投资,缩短项目建设周期。在平面布置研究中,充分研究煤制天然气工艺特点,从生产需要、工艺要求、运输及安全卫生要求等方面分析论证,完成项目总平面布置,并在项目建设前期进行局部调整,得到项目总图的最优布置。     

A hybrid CAD-based construction site layout planning system using genetic algorithms

The efficient layout planning of a construction site is a fundamental task to any project undertaking. In an attempt to enhance the general practice of layout planning of construction sites, the paper introduces a novel approach for producing the sought layouts. This approach integrates the highly sophisticated graphical capabilities of computer-aided design (CAD) platforms with the robust search and optimization capabilities of genetic algorithms (GAs). In this context, GAs are utilized from within the CAD environment to optimize the location of temporary facilities on site. The functional interaction between GAs and CAD and the details of the GA-based layout optimization procedure are presented. A fully automated computer system is further developed to demonstrate the practicality of the chosen approach. In order to evaluate the system's performance, a local construction project with a 24,000m² site is used. The automated system produced highly satisfactory results and showed notable flexibility through its CAD-based input/output media.     

工业新厂区规划方法探讨

以笔者所在公司某工程机械产品厂区整体搬迁升级扩建项目为例,重点探讨了项目前期规划的原则与目标,并从产能规划、项目选址、总体布局规划、道路规划、厂房规划、辅助场地规划等新厂区建设的各个角度论述了规划应注重的关键。     

Schedule-dependent evolution of site layout planning

The appropriate layout of temporary facilities on a construction site has a large impact on construction safety and productivity. For the duration of a project the site layout may need to be efficiently re-organized at various intervals to satisfy the schedule requirements and to maintain site efficiency. This paper presents a practical model for schedule-dependent site layout planning in construction. The proposed model uses a combination of artificial intelligence tools (knowledge-based systems, fuzzy logic, and genetic algorithms) to generate, optimize, and re-organize the site layout plan at frequent intervals during the project. The model incorporates flexible representation of irregular site shapes and several options for placing facilities. Based on the proposed model, an automated system is developed, fully integrated with widely used scheduling software. At each schedule interval, the system recalculates the space requirements and, for the convenience of congested sites, can utilize parts of the constructed space to accommodate temporary facilities. Details of the schedule-dependent model are described, and its application in an actual case study project is presented to demonstrate its capabilities.     

The application of the ant colony optimization algorithm to the construction site layout planning problem

A good site layout is vital to ensure the safety of the working environment, and for effective and efficient operations. Moreover, it minimizes travel distance, decreases materials handling, and avoids the obstruction of materials and plant movement. Based on studies in the manufacturing industry, the cost of materials handling could be reduced by 20–60% if an appropriate facility layout is adopted. In designing a site layout, a planner will first position the key facilities that influence the method and sequence of construction, and then assign the remaining facilities in the available space that is left over. This process is similar to the positioning of facilities in the ant colony optimization (ACO) algorithm. The general principle of the ACO algorithm is to assign facilities to a location one by one, and the occupied locations are deleted from the location scope in the next assignment. In the study, ACO algorithm is employed to resolve the construction site layout planning problem in a hypothetical medium‐sized construction project. By applying fuzzy reasoning and the entropy technique, the study calculates the closeness relationship between facilities, in which the optimal site layout is affected by the mutual interaction of facilities.     

建筑工程施工现场的平面布置

建筑工程施工平面布置是工程施工单位项目设计中的重要组成部分,是对建筑物或构筑物施工现场的平面规划和空间布置。合理的施工平面布置对于顺利执行施工进度计划非常重要,对现场的文明施工、工程成本、工程质量和安全生产都会产生直接影响。     

浅析施工总平面图的设计步骤与方法

施工总平面图是施工项目管理规划及施工组织设计中的一项重要设计内容,它与施工方案、施工进度及资源计划等相互影响,是施工项目现场管理、实现文明施工的依据。本文针对施工总平面图设计的设计步骤与方法进行了一些分析及阐述。     

关于施工现场临时用电线路安全性和隐蔽性分析

施工现场临时照明主用包括地下室临时照明,楼梯通道照明,还有其他光线不足的地方的照明。地下室临时照明是为了施工照明,如地下室地下室砌砖施工需要照明,其中也包括地下室通道疏散照明。楼梯通道照明主要是疏散照明。施工现场照明首先考虑的是用电安全,其次是达到照明要求,进而达到安全文明施工的美观要求。本文以平潭金井湾商务营运中心二标项目为例进行说明施工现场临时照明线路安全性和隐蔽性分析。     

佛山某基坑支护工程设计方案选型分析

基坑支护设计方案选型的合理与否,直接影响工程造价和工程安全。佛山某工程基坑周长约1000m,综合考虑场地岩土分层、场地内地下水、施工场地平面布置、场地周围建筑环境、工程造价等影响因素,基坑三面选择桩顶设置一道锚索的桩锚、一面选择两级放坡加木桩支护的组合支护形式,实际施工效果良好。     

A multi-attribute model for construction site layout using intuitionistic fuzzy logic

Most researchers have concentrated on studying optimization models to produce optimal construction site layout plans using different algorithms, while the overall method for evaluating and selecting the best site layout generated from optimization models has received less attention. In an optimization model, construction cost is generally considered in the objective function. However, several objectives, such as security and tie-in with external transportation, are difficult to quantify in the objective function and were not considered in previous studies. This paper focuses on evaluating and selecting the construction site layout considering qualitative objectives. An intuitionistic fuzzy multi-attribute decision-making model is developed that combines intuitionistic fuzzy set theory and the technique for order preference by similarity to the ideal solution (TOPSIS). This model overcomes the shortcomings of a traditional fuzzy set when describing ambiguous and unclear circumstances by using membership functions. The application of this model for site layout selection is shown to be reasonable and effective based on data from a real construction project.