2013年7月上 施工技术 第42卷第13期 CONSTRUCTION TECHNOLOGY 61 D0I:10.7672/sgjs2013130061 机场高填方加筋挡土墙在施工中的应用 李艳威,赵志强 (北京金港场道工程建设股份有限公司,北京100071) [摘要]加筋挡土墙是填土、拉筋和面板的结合体.拉筋与土之间的摩擦力及面板对填土的约束,使拉筋和填土结 合成一个整体的柔性结构,能适应较大的变形.结合某机场场道工程实例,介绍了加筋挡土墙的施工特点和工艺 原理.详细介绍了加筋挡土墙的施工工艺流程和操作要点、加筋材料的要求、质量控制标准和控制措施. [关键词]地基处理;机场场道;加筋土挡墙;施工技术 [中图分类号]TU753 [文献标识码]A [文章编号]1002-8498(2013)13-0061-03 Application of Reinforced Retaining Wall in Airport High Fill Construction Li Yanwei Zhao Zhiqiang Beijing Jin'gang Airport Road Construction Co. Ltd.Beijing 100071 China) Abstract:Reinforced retaining wall is bined with fillings steel bar and panel.The friction between the stretch and soil and panel filling constraints so that stretch and the filling bined into an overall flexible structure which can adapt to the large deformation.Based on airport road engineering practice this paper introduces construction characteristics and technical principle.Construction process and operation points of reinforeed retaining wall are introduced in detail as well as its quality control standard and control measures. Key words:foundation treatment;airport road;reinforced retaining wall;construction 1工程概况 3)少占土地,造型美观加筋挡土墙墙面为一 吕梁机场1号挡土墙设计长度122.52m 分段 竖直平面,不用勾缝,墙面板自然形成错落有致的 高度从23 20m到3m不等.挡土墙混凝土面板预 规则图案,又壮观又美观. 制约25000块,加筋材料采用高密度聚乙烯单向土 4)具有一定柔性,能够适应地基轻微变形,且 工格栅,铺设面积约120000m2. 抗震性强. 本工程的高填方挡土墙无论工程规模还是技 2.2加筋挡土墙的工艺原理 术难度方面,在我国的民航机场建设史上都是一个 在土体中分层加人入一定量具有较高抗拉强度 创举,对于提升行业的整体技术水平起到了较大的 和耐久性好的拉筋,拉紧锚固后,机械配合摊铺填 推动作用. 料,经分层摊铺、充分碾压,使填料与拉筋之间产 2加...
施工技术 2011年8月上 54 CONSTRUCTION TECHNOLOGY 第40卷第346期 既有建筑托梁拔柱改造设计与施工控制 赵挺生1,丁丽萍,唐菁菁,徐福泉2,李东彬2 (1.华中科技大学土木工程与力学学院,湖北武汉430074;2.中国建筑科学研究院,北京100013) [摘要]伴随低碳理念,我国建筑业发展正在步人低投入低消耗的现代化改造、维修与加固时期.托梁拔柱作为一 种扩大柱间距较好的技改方法得到了广泛应用.由于改造过程的结构时变特性以及现场作业难度大等特点,导致 其高风险性.为此,结合既有建筑托梁拔柱改造实践,在系统探讨托梁拔柱改造施工工艺流程的基础上,基于现代 工程安全理论,分析了既有结构承载能力降低风险、设计完整结构在施工过程呈现的阶段非完整性失效风险、托梁 拔柱施工质量风险、施工过程人身伤害风险以及托梁拔柱工程使用安全风险.综合应用建筑防倒塌设计方法和建 筑加固技术,提出了既有建筑托梁拔柱改造的构造设计、极限状态设计、变形与刚度控制和结构布置防倒塌设计原 则,并建议了结构加固、托梁原位制作以及截柱卸载施工技术要点,最后介绍了单层工业厂房和多层框架办公建筑 托梁拔柱改造的实例. [关键词]既有建筑;改造;托梁拔柱;设计方法;施工技术 [中图分类号]TU746.3 [文献标识码]A [文章编号]1002-8498(2011)15-0054-06 Design and Construction Control of Existing Building's Reforming by Transfer Girder and Cut Column Method Zhao Tingsheng' Ding Liping' Tang Jingjing' Xu Fuquan2 Li Dongbin2 (1.School of Civil Engineering and Mechanics Huazhong University of Science and Technology Wuhan Hubei 430074 China;2.China Academy of Building Research Beijing 100013 China) Abstract:With the philosophy of low carbon for friendly environment and sustainable development construction industry is entering the period of rebuilding maintenance and strengthening.The transfer girder and cut column (TGCC) as a means of expanding the column space has been widely used in the reforming of existing buildings.Since the structures under reforming are time-dependent structures and construction work is of high difficulty.Consequently the reforming engineering project of existing building is of high risk.So based on the practice of TGCC ...
施工技术 2012年4月上 52 CONSTRUCTION TECHNOLOGY 第41卷第362期 挤密桩和CFG桩复合地基在湿陷性黄土地区的应用 苏迎社,陈林 (1.长安大学工程设计研究院,陕西西安710064;2.深圳机械院建筑设计有限公司,广东深圳518027) [摘要]根据对挤密桩和CFG桩作用机理的分析,详细论述了在湿陷性黄土地区采用先挤密地基土,后施工.CFG 柱的多桩型复合地基处理技术.结合工程实例,详细介绍了挤密桩和FG桩复合地基的设计方法与施工工艺,并 通过复合地基检测结果的评价,表明了该方法具有降低成本、缩短工期、技术先进的优点,可在湿陷性黄土地区推 广应用. [关键词]地下工程;桩基础;挤密桩:CFG桩;湿陷性黄土 [中图分类号]TU753.3 [文献标识码]A [文章编号]1002-8498(2012)07-0052-03 Application of Compaction Pile Combining with CFG Pile Used in Collapsible Loess Area Su Yingshe Chen Lin (1.Design Research Institute Chang'an University Xi'an Shaanxi 710064 China; 2.Shenzhen Machinery Institure Architectural Design Co.Lid.Shenzhen Guangdong 518027 China) Abstract:According to analysis of action mechanism of paction pile and CFG pile authors elaborates the multi-pile posite subgrade technique which pacts the foundation soil first and then constructs the CFG pile.Based on practical project design method and construction procedures are described in detail for paction pile and CFG pile in collapsible loess area.Through the evaluation of posite subgrade detection results it indicates that the mentioned method has the advantages of cost reduction construct period shortening and technology advanced.It can be used in collapsible loess area extensively. Key words:underground;piles;paction pile;CFG pile;collapsible loess 在湿陷性黄土地区,对非自重湿陷性和自重湿土挤密桩法提高地基的密实度,从而达到对湿陷性 陷性场地,通常采用挤密桩或换填法处理地基.但黄土消除部分或全部湿陷性的作用,并改善地基的 处理后地基承载力一般≤250kPa 只能满足多层建承载力,减少地基变形. 筑地基承载力的要求,不满足高层建筑的要求,因 2)CFG桩是水...
2011年2月 施工技术 第40卷第4期 CONSTRUCTION TECHNOLOGY 45 建设工程质量检测监督信息化研究 李鸿伟,牛天勇2 (1.中国矿业大学(北京)力学与建筑工程学院,北京100083;2.北方工业大学经济管理学院,北京100144) [摘要]目前,由于建筑工程质量监管方面存在很多问题,造成质量监测数据失真、监管效率低下.以构建工程质 量检测监督信息化方案为出发点,进行了信息化监督平台的框架设计,并在此基础上拼建了该信息化平台的技术 支持系统.工程质景信息化监督平台的建立不仅可以提高单个工程质量监管的效率和准确度,还可以促进整个地 区工程质量的提高,从而得到良好经济效益. [关键词]质量;检测;监督;信息化:框架 [中图分类号]TU717 [文献标识码]A [文章编号]1002-8498(2011)04-0045-03 Research on Information of Quality Inspection and Supervision in Construction Project Li Hongwei' Niu Tianyong? (1.School of Mechanies Civil Engineering China University of Mining and Technology(Beijing) Beijing 100083.China; 2.School of Economics and Management North China University of Technology Beijing 100144 China) Abstract:Nowadays more and more problems emerge from the quality supervision in construction project which lead to monitoring data fuzzy and inefficient.A information plan of construction quality supervision is put forward.On the basis of this plan the frame of the supervision information system is designed.The corresponding technical supported programs are given.The establishment of construction quality supervision information system can not only improve the efficiency and accuracy of a single project but also raise the quality level of the whole region to gain good economical efficiency. Key words:quality inspection;supervision;information;frame 1研究背景 见证、借用他人证书.②见证过程流于形式主要 1.1建设工程见证取样送检存在问题 表现为取样人员在取样时,见证人员没有认真见证 建设工程取样送检是原建设部2000年发布的 或者根本不见证;取样人员取样时忽视技术标准或 《房屋建筑工程和市政基础设施工程实行见证取样 规范要求,认为...
2012年5月下 施工技术 第41卷第365期 CONSTRUCTION TECHNOLOCY 95 建设工程垫资承包的风险及防范对策 李维芳 (武汉科技大学管理学院,湖北武汉430081) 【摘要]国内工程建设领域的垫资承包问题起源于国内建筑市场经济制度的建立和建筑金业市场地位的确立.承 包人在建筑市场中处于弱势地位,垫资施工面临一系列风险,垫资施工的风险防范问题也日益成为广大施工企业 应关注的间题.通过对国内垫资承包现象的深人分析和研究,从中找出承包商在垫资承包中可能通到的主要风险 及风险来源,并针对这些风险问题,从防范业主拖欠工程款、加强承包商垫资管理、完善承包垫资保障制度等方面 提出相应的风险防范对策. [关键词]工程管理:垫资承包;风险;防范措施 [中图分类号]TU723 [文献标识码]A [文章编号]1002-8498(2012)07-0095-04 Risk and Preventive Measures of Contracting with Funds in Construction Li Weifang (School of Management Wuhan University of Science and Technology Wuhan Hubei 430081 China) Abstract:Contracting with funds derived from the creation of construction market economic system and the construction enterprise market positions in China.Contractors are in a weak position in the construction market it causes a serics of risk factors from the contracting with funds so contractors should pay attention to avoid funds risks of contract construction projects.Through in-depth investigation and prehensive study the main risks and the sources of risks are analyzed and the corresponding countermeasures are put forward mainly including prevention owner defaults on construction costs strengthening management about contracting with funds improving protection system about contracting with funds. Key words:project management;contracting with funds:risk:preventive measures 垫资承包当前已成为国内外工程建设领域的内建筑市场的规范都具有重要意义. 普遍现象.日前国内建筑市场中,建设资金的短缺1垫资承包的法律效力 和建筑企业之间过度竞争的情况同时存在.因此, 垫资承包又称带资承包,指在工程项目建设过 当项目存在资金缺口时,建设单位可以凭借其买方 程中,承包人利用自有资金...
2012年6月下 施工技术 第41卷第367期 CONSTRUCTION TECHNOLOCY 113 建立甲(A)类脚手架结构工程设计计算体系的 技术路线及有关问题初析(3) 杜荣军 (北京中建建筑科学技术开究院,北京100076) [中图分类号]TU731.2 [文献标识码]A[文章编号]1002-8498(2012)120113-08 Establishment of Technical Route for Class A Scaffold Design or Calculation System and the Analysis of Corresponding Questions (3) Du Rongjun Beijing Building Research Institute Co.Lad.of CSCEC.Beijing 100076 China) 2.2满堂扣件架、碗扣架剪刀撑及斜杆的配置分析 2.2.1按现行标准构造规定的a 值 M.=4n2(162)2n次 1)设置规定 当L L ≤1.5m L =3~8(≤4.5m)时: 新版JGJ130和JGJ166对满堂扣件支架、满堂 6n1n2y20 碗扣支架的剪刀撑、斜杆设置规定分别示于图6一 N.=-LaL (n n21m2m3) 8.其相应的N计算式如下. 式中,ni为n1和n2中的大值. 2)满堂架有斜杆框格束N的计算式 3)a 值 a.扣件架 按计算式并取不同的L 值得到的a 值分别列 作业架和普通型模板支架: 入表17~19中. N.= 2(20.0mm2n)(H1.5m时, 载能力改变量△R与△a的比值,△R/△a越大,则架 体承载能力对斜杆的配置越敏感. 分为9级,每 级a 的改变量为5%,从C 级的<10%逐级上升到 [收精日期]...
2017年7月下 施工技术 第46卷第14期 CONSTRUCTION TECHNOLOGY D0I:10.7672/5j52017140001 广州白云国际机场综合交通枢纽项目基础 工程溶(土)洞处理技术* 万利民,刘勇,常龙,诸葛仲彦,杨冬 (中国建筑第八工程局有限公司广州分公司,广东广州510670) [摘要]广州白云国际机场综合交通枢纽项目所在场区溶(土)洞较发育,对其地下工程的施工质量和安全影响较 大.主要从处理原则、处理范围、处理材料及工艺、效果验证等方面,介绍了本项目基础工程中的溶(土)洞处理技 术,并从降低施工过程安全风险、改善地基承载力和地基稳定性、预防溶(土)洞进一步发育对地下工程产生不良影 响等方面考虑,建议地下工程实施前应对已发现的溶(土)洞进行处理. [关键词]基坑:隧道;双液浆:单液浆:施工技术 [中图分类号]TU753 [文献标识码]A [文章编号]1002-8498(2017)14-0001-03 Treatment Technology of Dissolving (Soil)Hole in Foundation Project of Guangzhou Baiyun International Airport Integrated Transportation Hub Project WAN Limin LIU Yong CHANG Long ZHUGE Zhongyan YANG Dong (China Construction Eighth Engineering Division Co.Ltd.Guangzhou Branch Guangzhou Guangdong 510670 China) Abstract:The integrated transportation hub project of Guangzhou Baiyun International Airport is located in the area where the dissolved soil cave is relatively developed which has a great influence on the quality and safety of the underground construction.This article mainly introduces dissolving (soil)hole processing technology of the foundation engineering solution from the processing principle processing processing materials and technology effect of verification and considering from the aspects of reducing the safety risk of the construction process improving the bearing capacity of the foundation and the stability of the foundation preventing the further development of the dissolving (soil)hole and causing the adverse effects on the underground engineerin...
施工技术 2010年11月 8 CONSTRUCTION TECHNOLOGY 第39卷第11期 广州珠江新城西塔施工测量及层间垂直度控制方法 郑宝铖,叶运安 (广州市建筑集团有限公司,广东广州510030) [摘要]广州珠江新城西塔工程主体采用筒中筒结构,为超高层建筑,施工测量和层间垂直度精度控制难度较大. 较详细地叙述了超高层建筑主体施工测量方案,包括提模钢平台顶面主要轴线控制,轴线竖向引测方法和放线步 骤.关于主体建筑的主要控制轴线竖向引测及钢模板定位技术具有创新性.同时指出施工测量具体流程,分析了 层间垂直度控制及其要求,使结构各项指标符合工程要求. [关键词]垂直度控制;提模钢平台;激光垂准仪;施工测量 [中图分类号]TU198 [文献标识码]A [文章编号]1002-8498(2010)11-0008-03 Construction Survey and Control Method of Interlayer Verticality in Guangzhou Pearl River New Town West-tower Zheng Baocheng Ye Yun'an Guangzhou Municipal Construction Group Co.Ltd.Guangzhou Guangdong 510030 China) Abstract:Guangzhou Pear River New Town West-tower with a tube-in-tube structure belongs to super high-rise building.It is difficult to control the construction survey and interlayer verticality precision between the floors.The authors describe the main body of super high-rise building construction measurement schemes in detail such as the control of main axis in steel platform top surface for hoisting template the methods of axis for vertical measurement and the steps of setting out.It has innovation in the control of vertical measurement about mainly axis and steel template location.Idiographic flow of construction measurement is put forward as follow analyzing vertical precision between the floors and its requirement then the various index accord with engineering requirements. Key words:verticality control;steel platform for hoisting template;laser verticality machine; construction survey 1工程概况 广州珠江新城西塔工程...
[关键词]体育场;钢结构;顶篷;悬挑;斜拉索;支撑胎架;数值模拟 [中图分类号]TU731.2【文献标识码]A[文章编号]1002-8498(2015)02-0106-04
CantileverSteelRoofinGuangzhouHaixinshaStadium Peng Wenhai',Wu Jinwei (1.Guangdong Yitao Wanguo Real Estate Co.,Ltd.,Guangzhou, Guangdong 511458, China; 2.Guangzhou Machine Construction Group,Guangzhou,Guangdong 510115,China) Abstract;Design and construction simulation of the temporary support for the large-span cantilever steel roof of the 16th Guangzhou Asian Games in Haixinsha stadium were conducted,time-varying structural internal force of the temporary support in the process of the stayed cable tension was also introduced. Based on the result of the construction simulation,axis force of support in the process of structure transformation was given.What is more,the work not only assures the safe of the steel roof construction, but also validates the designing and the construction method of this kind of new plicated structure. Key words;stadiums; steel structures; steel roof;cantilever; stayed cable; supporting jig;simulation 1工程概况4),如图2所示。
[关键调]张弦梁;预应力;抗滑索;起拱;施工技术 [中图分类号]TU394;TU758 [文献标识码]A [文章编号]1002-8498(2014)20-0033-02 PrestressingConstruction ofSingleDirectionalBeamStringin GuangzhouUrbanPlanningExhibition Center Xu Shudong,Zhang Kaichen (Bejing Yintaijian Prestressed Engineering Co.,Lid.,Bejing100085,China) Abstract;Single directional beam string is used in the project of Guangzhou Urban Planning Exhibition Center,heavyroofandheavyloadisthefirstmajorfeatureof thisprojet,andthesecondmajoreatre is the design of application of anti-slide cable.This paper focuses on these two characteristics,and introduces the methods of the construction.The setting of anti-slide cable and steel beam processing and making arc are introduced in detail. Key words;beam string; prestressing; anti-slide cable;making arc;construction 1工程概况 广州市城市规划展览中心工程分南北两区,北 区城市主体模型厅为48.0m×40.0m大空间展示 区,屋面采用单向张弦梁钢结构体系,张弦梁共11 福。
[关键词】高层建筑;压缩变形;均匀补偿;数据分析 [中图分类号]TU974[文献标识码]A[文章编号]1002-8498(2016)12-0034-04 Data Analysis and Research of Compression-deflecion in ChowTai FookFinance Centrein Guangzhou Zou Jun',Sun Hui²,Li Jie²,Xie Guosong² (1.ChinaStateConstruction Engineering Co.,Ld.Bejing100037,China; 2.China Construction Fourth Enginering Division Co.,Ld.,Guangzhou,Guangdong 510000,China; 3.China ConsructionThirdBureauFirst Engineering Co.,Lid.,Wuhan,Hubei43000,China) Abstract:The main structure presion is a key factor which is necessary to be monitored and controlled in high-rise building construction.Because the pression of the main structure is measured in different construction stages forreal time,the practicingmeasuring method and controlled process of the pression are studied. The pression of Chow Tai Fook Finance Centre in Guangzhou is monitored factors and pression ratio are discussed and the method of pre-added pression value is investigated. Key words:tall buildings; pression deflection; uniformity pensation;data analysis
0引言的伸臂桁架、平面梁以及一些腰桁架、斜撑产生较 由于超高层建筑高度远超过普通的高层建筑,大的变形次应力,从而导致整体结构的安全性、稳 质量也是普通高层的数倍,在质量和塔楼高度翻倍定性下降,影响建筑物的使用功能。
[关键词】高层建筑;施工电梯;计算方法;拟合公式 [中图分类号】TU857 [文献标识码】A [文章编号】1002-8498(2016)12-0038-04 Exploration andApplication ofConstructionElevators Calculation MethodatChowTaiFookFinanceCenterinGuangzhou Ye Haowen', Sun Hui²,Li Jie² (1.China State Construction Engineering Co.,Lud.,Beijing 100037,China; 2.China Construction Fourth Engineering Division Co.,Ld.,Guangzhou,Guangdong 51000o,China) Abstract:Themethod to determine the amount of construction elevators proposed in this paper adopts the theory of‘rough estimate and precision inspection'.Firstly,the amount of construction elevators is calculated according to the method of rough estimate.After the specific planning at plan or profile is determined,matching degree between traffic capacity of construction elevators and the actual workers and goods amount.This method achieves the objective of optimal allocation of construction elevators and improves the scientificalness of the construction organization plan. Key words:tall buildings;elevators; calculated method;fitting formula 0引言 一套施工电梯使用效率计量统计方法,以及施工电 在超高层建筑施工中,垂直运输的核心目标是梯数量计算理论公式。
[关键词]脚手架;扣件式脚手架;竖向承载力;非线性分析;有限元分析 [中图分类号]TU731.2 [文献标识码】A [文章编号】1002-8498(2013)17-0021-05 NonlinearAnalysisandApplicationofVerticalBearingCapacityfor DoubleRowsFastenerScaffoldsinPZB1401Project Li Xuejin',Tong Huawei',MiXiang² (1.School of Civil Engineering,Guangzhou Unisersity,Guangzhou,Guangdong 510006,China; 2.China Overseas(Shenzhen) Construction Co.,Ltd.,Shenzhen,Guangdong 518057,China) Abstract:The authors use finite element software MIDAS/Gen to establish overall calculation model on double rows right angle fastener scaffold which is semi-rigid connected,simulate the initial defect by virtualhorizontal force,calculate nonlinear buckling strength,point out the yardstick of yield failure on defective scaffold and validate the rationality of the calculation model by existing experimental results. Compared with the curent codes, the calculation results are reliable and the method of modeling and simulation canbe applied to the vertical bearing capacity calculation of scafld in plicated working conditions. Key words: scaffolds; fastener scafolds; vertical bearing capacity; nonlinear analysis; finite element analysis 《建筑施工扣件式钢管脚手架安全技术规范》 范要求设置连墙件,在进行脚手架竖向承载力计 JGJ130-2011总结了扣件式钢管脚手架的竖向承算时,计算长度系数μ也无法根据规范表5.2.8 载力计算公式,提供了脚手架常用搭设参数的选用来选取;另外,在该项目塔楼施工中,由于塔楼层高 表格,并提出了各项构造措施,可以满足大部分建 3.9m,楼层上、下相互呈不规则错开,也导致外脚手 筑工程规则脚手架的搭设和计算要求。
2012年4月下 施工技术 第41卷第363期 CONSTRUCTION TECHNOLOGY 67 基坑周围深层土体沉降预测研究 尹盛斌1,丁红岩2 (1.汤臣(中国)有限公司,上海200122:2.天津大学建筑工程学院.天津300072) 【摘要】工程经验表明:任意的围护结构变形形式均可近似利用正向转动、反向转动及挠曲等3种基本变形模式进 行拟合,且通过对基坑开挖过程的有限元数值模拟可知,当围护结构发生上述3种基本变形模式时,坑外深层土体 沉降存在较为明显的分布规律.利用3种基本变形模式对围护结构的侧移曲线进行拟合,求得所对应的最大位移 值,然后根据3种基本模式所对应的坑外深层土体沉降曲线分布,求得每一基本模式所对应的坑外深层土体沉降 分量,并进行叠加,从而求得坑外深层任意点的沉降值. [美键词]地下工程:基坑:沉降:数值分析:基本变形模式 【中图分类号]TU443 [文献标识码]A [文章编号]1002-8498(2012)08-0067-06 Research on Prediction of Sub-surface Settlement to Foundation Excavation Yin Shengbin' Ding Hongyan2 (1.Tomson Group in Shanghai Shanghai 200122.China: 2.4e可f Civil Engineering 7 ianjin University Tiangjin300072 China) Abstract:The project experience shows that arbitrary displacement pattern of the retaining wall can be fitted using the three basic deformation modes which are the forward rotation reverse rotation and deflection.The numerical simulation of the foundation excavation shows that for the three basic deformation modes the dislribution of the sub-surface settlement of the soil can be fitted by experienee curves.Esing the three basic deformation modes arbitrary displacement pattern of the retaining wall can be fitted and the maximum displacement value for each basic deformation mode also can be obtained. Based on the experience curve calculated by the trumerical analysis method the corresponding ponent of the sub-surface settlement for each basic deformation mode can be calculated.Then adding the three ponents of the sub-surface settlem...
[关键询]道路工程:路线:平面线形;遗传算法:优化 [中图分类号】U412.33【文献标识码]A[文章编号】1002-8498(2012)11-0049-04 AnAdaptiveGeneticAlgorithmBasedonMulti-populationParallel EvolutionaryforHighwayAlignmentOptimizationModel Chen Jianxin',LO Maixia², Chen Jia” (1.Highy College,Chang²an Uniersty,Xi'an,Shaanxi 710064,China; 2. Xi'an Municipai Design Instiaute Co. , Lud. , Xi'an, Shaanxi 710065, China; 3. Beijing Jialin Yuren International Edueation Center of Science and Technology Co., Ltd., Bejing 100085, China) Abstract;Based on the characteristics of the highway design, the authors transfers all the factors involved in the highway design to a cost-optimized-oriented model and designs a variety parallel genetic algorithm to optimize highway design. While maintaining evolution stability of excellent individual, the algorithm can improve convergence rate and accuracy and avoid premature convergence generated by single- population evolution.To some extent,it makes up generalization-lacking defects of a single species or steady parameters in premature overing. Finally, the algorithm is verified which achieves a good result. Key words:routes; horizontal alignment; genetic algorithm; optimization 道路选线模型的优选设计是复杂的多目标决划法、网络优化法以及遗传算法。
2015年9月下 施工技术 第44卷第18期 CONSTRUCTION TECHNOLOGY 81 D0I:10.7672/5j52015180081 基于蒙特卡罗方法的大型网络计划工期 固定-资源均衡优化* 张厚先 (南京工程学院建筑工程学院,江苏南京211167) [摘要]大型网络计划工期固定资源均衡优化是进度计划制定者最具挑战性的任务之一.大型网络计划工期固 定-资源均衡优化是工作数较多(例如超过50个)的网络计划满足工期固定的情况下的资源均衡.提出了基于蒙 特卡罗方法的分区优化求解大型网络计划工期固定资源均衡优化问题,用工作最早开始时间和最迟完成时间、以 分区内可能解的组合数小于微机有效处理循环次数为限,把大型网络计划的工作划分到足够多的分区,以减少分 区内各工作满足某一条件的可能解组合个数,减少在全工期时段上满足工期固定和资源均衡的可能解组合个数, 从而便于微机用蒙特卡罗方法、以有限的循环次数和较高的优化解使最优解的概率得到大型网络计划的工期固 定-资源均衡优化的解.基于蒙特卡罗方法的分区优化求解工期固定-资源均衡优化,通过了具有61个工作的大型 网络计划工期固定资源均衡优化算例验证. [关键词]项目管理;大型网络计划;蒙特卡罗方法;分区优化;循环次数 [中图分类号]TU721.3;C931.2 [文献标识码]A [文章编号]1002-8498(2015)18-0081-05 Resource-Leveling Optimization with Fixed Duration for a Large Network Plan Based on the Monte Carlo Method Zhang Houxian School of Architecture and Civil Engineering Nanjing Institute of Technology Nanjing Jiangsu 211167 China) Abstract:Resource-leveling optimization with fixed duration for a large network plan is one of the most challenging tasks of construction project planners.Resource-leveling optimization with fixed duration for a large network plan whose works number is more(such as more than 50)requires minimization of total project duration while considering issues related to optimal resource leveling.The partition optimization of resource-leveling optimization with over a fixed duration for large network plans based on the Monte Carlo method is put forward.With a limitation on the number of possible solutions to the partition the work of a large network plan is partitioned a...
2016年2月下 施工技术 第45卷第4期 CONSTRUCTION TECHNOLOGY D01:10.7672/sgjs2016040001 基于绿色建造的施工现场装配化思考* 肖绪文1.2,冯大阔 (1 中国建筑股份有限公司,北京100037;2.中国建筑业协会绿色施工分会,北京100037) [摘要]在我国加快改革开放和转变生产方式的背景下,面对我国新型城镇化和建筑产业现代化发展的需求,加快 推进基于绿色建造角度的施工现场装配化已成为大势所趋.首先阐释了施工现场装配化的概念、内涵、前提条件 及其与绿色建造的关系;而后深入分析了我国施工现场装配化推进的背景、意义及推进现状和存在问题.在此基 础上,探讨了推进施工现场装配化需要强化研究的若干问题,并提出了相关建议,以期推进基于绿色建造的施工现 场装配化. [关键词]装配化;绿色建造;前提条件;推进建议 [中图分类号]TU741 [文献标识码]A [文章编号]1002-8498(2016)04-0001-04 Study on Site Assembly Based on Green Construction Xiao Xuwen.2 Feng Dakuo' (1.China State Construction Engineering Corporation Beijing 100037 China; 2.China Construction Industry Association Green Construction Committee Beijing 100037 China) Abstract:Under the background of accelerating the reform and opening as well as transforming production modes and faced with demands of new urbanization and construction industry modernization site assembly based on green construction has bee a trend in China.The concept connotation and precondition of site assembly are firstly introduced as well as the relationship of site assembly vs.green construction.Subsequently the significance status and problems of promoting site assembly are described in details.On the basis several promoting suggestions are put forward to further promote site assembly based on green construction in China. Key words:precast;green construction;precondition;promoting suggestions 1施工现场装配化与绿色建造 进行装配使用,是施工现场装配化的重要方面. 1.1施工现场装配化 2)结构构件装配化将在工厂预制好的建筑 施工现场装配化就是把通过工业化方法在工 主体结构构件在施工现场进行装配安装以...
施工技术 2012年8月下 56 CONSTRUCTION TECHNOLOGY 第41卷第371期 基于系统论的建设工程紧缩工期管理研究 甄志禄1,艾红梅2 (1.天津大学管理学部,天津300072;2.河北建设集团有限公司,河北石家庄050061) [摘要]基于系统论思想,结合建设工程管理实践经验,采用系统分析方法,提出技术、资源、关系和信息是建设工 程紧缩工期管理系统的4个子系统,揭示了4个子系统及要素间相互关系,提出了4个子系统管理原则,构建了系 统管理框架,并对每个系统要素提出了具体管理措施. [关键词]项目管理;系统论;建设工程;紧缩工期管理 [中图分类号JTU712.1 [文献标识码]A [文章编号]1002-8498(2012)16-0056-05 Research on Tight Schedule Management of Construction Projects Based on System Theory Zhen Zhilu' Ai Hongmei2 (1.School of Management Tianjin University Tianjin 300072 China; 2.Hebei Construction Group Co.Ltd.Shijiazhwang Hebei 050061 China) Abstract:Based on system theory and past experience of construction management a management system for projects with tight schedule was proposed which consists of four subsystems of technology resource relationship and information.In this paper the relationship among these four sub-systems and their key elements were described and their management principles were highlighted.A framework was established for the management system and detailed management methods were proposed for each key element. Key words:project management;system theory;construction project;tight schedule management 抗险救灾、灾后重建、组织重大活动所使用的了对建设工程紧缩工期有重要影响,工程实践中易 公共建筑及对工期有特殊要求的建设工程,其工期出现问题,应重点管理与控制的要素,这些要素构 明显短于正常工期,称为紧缩工期.这些工程如不 成了紧缩工期管理系统,其按管理对象分为技术、 能按期交付使用,除造成经济损失外,还可能引发资源、关系和信息4个子系统.技术子系统主要包 恶劣社会影响,对这些紧缩工期的管理有异于合理 括施工组织设计与工程设计.施工组织设计是指 工期管理,紧缩工期短、任务重,更需要系统思维, 导工程施工的总体部署,类似于作战计划,主要包 理清系统各要素间的内在联系.在解决问题时,紧 括进度计划、三大资源计划、施工方案、质量安全进 缩工期管理需要各种计划更...
2012年11月上 施工技术 第41卷第376期 CONSTRUCTION TECHNOLOGY 25 基于突变级数法的绿色施工评价研究 闫志刚,杜立峰,王雪丽 (石家庄铁路职业技术学院,河北石家庄050041) [摘要]建筑业在我国国民经济体系中具有重要地位,建筑业的节能减排对于节能减排工作意义重大,以节能减排 为核心理念的绿色施工是建筑业实施可持续发展战略的重要环节.在我国由于绿色施工的相关评价标准、评价体 系的研究相对匮乏,尚未形成一套完整的绿色施工评估标准与评估体系.基于全寿命周期评价理论和突变级数 法,并参照我国绿色施工相关规定,通过对建筑施工活动中的环境污染和能源消耗进行辨识,探讨基于我国国情的 绿色施工评价标准体系与评价方法. [关键词]绿色施工;评价方法;突变级数法;全寿命周期 [中图分类号]TU74 [文献标识码]A[文章编号]1002-8498(2012)21-0025-05 Study on Green Construction Evaluation Based on Catastrophe Progression Method Yan Zhigang Du Lifeng Wang Xueli Shijiazhuang Institute of Railway Technology Shijiazhuang.Hebei 050041 China) Abstract:Construction industry is the pillar of the national economy and the conservation and emission reduction of construction industry is very important.Green construction is an important measure for conservation and emission reduction of construction industry.However the evaluation criteria and methods for green construction are absent in China.According to the actual situation in our country this paper discussed the establishment of a set of evaluation criteria for green construction which identify the environmental pollution and energy consumption during construction activities based on life cycle impact assessment method and catastrophe progression method. Key words:green construction;evaluation;catastrophe progression method;life cycle 0前言 行;2005年由住房和城乡建设部与科技部联合编制 节能减排作为我国“十二五”期间的一项重要的《绿色建筑技术导则》正式颁布.随着我国产业 工作,是我国落实可持续发展战略的重要举措.建 结构的升级以及节能减排工作的深入开展,绿色施 筑业在我国国民经济体系中具有重要地位,建筑业 工将成为建筑业必然的发展趋势门.目前,我国虽 的节能减排对于节能减排工作大局意义重大.以 然已有诸如绿色建筑评价标准、奥运绿色建筑评估 节能减排为核心理念的绿色施工是建筑业实施可 体系等绿色建筑相关的评价体系,但具有针对性的 持续发展战略的重要环节.目前在发达国家,不仅 绿色施工相关评价标准与评价方法尚缺乏,难以满 已制定较完善的绿色施工相关法律法规,同时相关 足实际应用需求,这也成为我国绿色施工管理与绿 的评价体系与方法也较成熟,例如英国的 色施工技术在实际推广应用上的障碍2.本文基 BREEAM、美国的LEED、日本的CASBEE、加拿大的 于过程管理的思想,运用全寿命周期评价的方法, GBTool等.同时,ISO14000环境管理标准认证也作 对施工活动进行生态足迹的追溯,对绿色施工评价 为建筑企业绿色管理质量的标准得到了大力推广, 标准进行了探讨,利用突变级数法,构建建筑企业 成为建筑业国际贸易的绿色通行证.我国的绿色 绿色施工综合评价体系,并结合工程实例进行应 施工起步较晚,2004年绿色施工在北京开始全面推 用,对施工方案进行了评价与比选. 1绿色施工的全寿命周期评价 [收稿日期]2012-04...