2012年4月下 施工技术 第41卷第363期 CONSTRUCTION TECHNOLOCY 95 灌浆技术在水利工程建设管理 及施工中存在的若干问题 戎雷,潘翔 (武警水电第二总队,江否南昌330029) [摘要]灌浆作为地基处理的主要手段之一,在国内得到了很大发展,在建工程中所占的比例也在增加,但在建设 管理方面还存在一些弊端.在施工管理方面也存在一些误区.结合实际经验,分析了灌浆技术在水利工程建设管 理中存在的问题及施工方面存在的误区及其解决办法,以更好地促进灌浆工程的发腰. [关键词]水电站:地基处理:灌浆:管理 [中图分类号】TV732 [文献标识码]A [文章编号]1002-8498(2012)08-0095-04 Several Problems of Grouting Technology in Management and Construction of Hydraulic Engineering Rong Lei Pan Xiang No.2 Hydropower Force of Armed Police Nanchang.Jiangsi 330029 China) Abstract:As one of main methods for foundation treatment grouting is developing in China.And the percent of grouting increases in construction.But there are some disadvantages in building management and some mistakes in construction management.Based on actual practices authors analyze the problems and mistakes of grouting technology in construction management of hydraulic engineering to promote the development. Key words:hydropower stations:foundation treatment;grouting:management 灌浆(grouting) 发展初期称为注浆(injection高坝大库成为主导设计理念.水利工程中多为较 grouting) 是将一定材料配成浆液,用压送设备将其常规施工有诺多困难的案例,其基础处理工程所占 灌人地层或继隙是指扩散、胶凝或固化,以达到加比例与分量均有所增加,大部分为采用灌浆方式进 固地层或防渗堵漏的目的.在基础处理范砖,注浆 行处理. 技术由经验方法逐步完善成为一门具有理论的技 虽然如此,很多工程师仍有重上层建筑、轻地 术.注浆技术的历史大致可分为4个阶段:原始黏下基础的思想,或有因对灌浆理论知识了解简单而 土浆液阶段(1802一1857年).初级水泥浆液注浆阶 产生的不合理的建设管理和施工管控,形成了很多 段(1858一1919年),中级化学浆液注浆阶段 误区. (1920一1969年),现代注浆阶段(1969年之后).1建设管理中存在的问题 我国对灌浆技术的应用起步较晚,但发展较快,近 1.1标段划分过多可能导致责任不清 年来某些方面已达到世界先进水平,20世纪50年 目前国内大型工程的招投标市场中,建设单位 代后期,灌浆技术在水坝的防渗和加固工程中逐渐 多会将整体工程划分为多个标段,其...
[关键词】绿色建筑;绿色施工;节能;环保;施工技术 [中图分类号]TU712[文献标识码]A[文章编号]1002-8498(2014)04-0063-03 GreenConstructionResearchandApplication inHaikongInternationalPlaza
(Huadong Branch of China Construction Sixth Engineering Bureau Co.,Lud.,Nanjing,Jiangsu 210016,China) Abstract:In recent years,with the energy consumption and deterioration of environmental pollution increasing,green construction,energy-saving and emission reduction are promoted in China.Combined with Haikong International Plaza project,the research and application of green construction are introducedbased on the green construction stage ingreen building life cycle,including energy-saving, material-saving,water-saving, land-saving and environmental protection.The results show that good social and economic benefits are obtained by the application of green construction technology. Key words:green buildings;green construction;energy-saving;environmental protection;construction 1工程概况 海控国际广场位于海南省海口市龙华区商业 核心区,项目由主楼A座、副楼B座、C座及附属裙 房及地下机械车库组成,总建筑面积23万㎡²,是集 五星级酒店、5A级写字楼、酒店式公寓、娱乐、观光 于一体的商业综合体。
施工技术 2011年11月下 30 CONSTRUCTION TECHNOLOGY 第40卷第353期 海控国际广场塔式起重机运力分析及优化 李松 (中国建筑第六工程局有限公司华东分公司,江苏南京210016) [摘要]海控国际广场工程钢筋混凝土核心筒与钢管混凝土外框柱的安装作业均需要选用塔式起重机来进行垂直 运输工作.通过对塔式起重机的使用情况进行大量统计分析,并根据分析结果采取措施优化塔式起重机运力,促 进了工程质量和安全管理工作,并为工期目标的实现提供了有力的措施保障. [关键词]高层建筑;建筑机械;塔式起重机;运力分析:优化 [中图分类号]TH213.3 [文献标识码]A [文章编号]1002-8498(2011)22-0030-02 Analysis and Optimization for Tower Crane Capacity in HNA International Mansion Li Song Huadong Branch of China Construction Sixth Engineering Division Co.Ltd.Nanjing Jiangsu 210016 China) Abstract:The installation of reinforced concrete core tube and external frame column in HNA International Mansion need to use tower crane for vertical transportation.The using condition of tower crane is statistically analyzed to optimize the capacity.The construction quality and safety management are improved and the construction period is ensured. Key words:tall buildings;construction equipment;tower cranes;capacity analysis;optimization 1工程概况 海控国际广场工程位于海口市金贸中路,A座 建筑高度249.70m 目前是海南省在施第一高楼. 本工程结构形式为钢筋混凝土双连体核心筒钢管 混凝土外框柱、钢楼承板结构形式,地下3层,地上 54层.结构施工阶段的垂直运输采用2台TC7052 号式 外附着式塔式起重机.由于现场条件所限,1号塔 包机 2号塔式@ 式起重机大臂长度为40m 2号塔式起重机大臂长 起重机 度为45m 两台塔式起重机可以覆盖整个作业面. 钢筋混凝土核心简施工采用爬模外爬内支方式,混 凝土泵送;初期外框柱混凝土使用塔式起重机吊运; B座 楼承板混凝土采用泵送方式施工. 由于现场条件所限,A座周围不能形成循环道 路,但有3条通道可接近A座.塔式起重机施工平 图1塔式起重机施工平面布置 面如图1所示. Fig.1 Tower crane work plan 2塔式起重机工作内容分析 塔式起重机运力与结构施工工艺关系密切,施 施工工艺流程如图2所示.最初计划塔式起重机主 工工艺关系到塔式起重机的工作内容和工作量.其 要工作内容如表1所示. 3实际运力分布统计与分析 [收日期]2011-08-01 [基金项目]中国建筑工程总公司科研项目(CSCEC-2011-Z-38) 现场实施过程中,在标...
施工技术 2014年8月下 48 CONSTRUCTION TECHNOLOGY 第43卷第16期 D01:10.7672/sjs2014160048 海岸桩基建筑物纠倾工程分析 李宇捷 (中国地质大学(北京)海洋学院,北京100083) [摘要]海岸桩基建筑物纠倾工程是一项复杂的系统工程,需要因地制宜地进行研究.讨论了海岸工程地质条件 和水文地质条件,分析了海岸桩基建筑物倾斜原因及其纠倾工程设计施工特点,通过两则实例揭示了风暴与潮汐 对桩基建筑物纠倾工程的影响,探讨了地下水、地基土、桩基础及荷载变化的相互关系,提出了及时规避台风和大 潮的措施. [关键词]海岸场地;桩基;纠倾 [中图分类号]TU746.3 [文献标识码]A [文章编号]1002-8498(2014)16-0048-04 Analysis on Incline-rectifying Engineering of Coastal Building with Pile Foundation Li Yujie (School of Ocean Sciences China Unitersity of Geosciences Beijing) Beijing 100083 China Abstract:It is a plex systematic engineering to correct the leaning coastal building with pile foundation on which the studies shall be prepared according to practical condition.The engineering geology condition and hydrogeological conditions in coastal site are discussed.Then slant reasons of coastal building with pile foundation are analyzed the design and construction characteristics of incline- rectifying engineering are put forward.The windstorm and tide influence on incline-rectifying engineering are researched by two engineering examples.The relationships of groundwater foundation soil pile foundation and time varying load are discussed and the avoidance measures of windstorm and tide are advanced. Key words:coastal site:piles;rectification 随着我国城市化进程的发展,沿海城镇逐渐向 裸露.我国的基岩海岸多由花岗岩、玄武岩、石英 滨海平原地区推进,海岸建筑随之增加.但由于海 岩、石灰岩等组成.海岸基岩强度较高,压缩性低, 岸地质条件特殊性以及设计施工等方面的原因,一 其节理与裂隙比较发育. 些海岸桩基建筑物出现了倾斜等建筑病害.海岸 砂质海岸多形成于海湾内,主要由砂砾组成, 桩基建筑物纠倾工程具有地域性强、时空效应显 平原地貌发育.其中,砾石、粗砂的抗剪...
施工技术 2011年12月下 78 CONSTRUCTION TECHNOLOGY 第40卷第355期 海外工程的RFI编制管理 王力尚,周康,吴鸣,朱建潮,陈文刚 (中建中东有限责任公司,阿联首,迪拜) [摘要]在履行国际项目工程合同时,有可能出现技术问题,需要建筑施工承包商履行RFI报审程序.RFI即技术 问题答疑,是海外工程施工中承包商向业主,监理获取技术信息,解决工程施工过程中遇到的技术问题的主要途 径.重点对RFI的特点、适用范围、编制原理及应用流程进行闸述,并介绍了审批分类以及管理办法等.实践证 明,RFL具有良好的经济和社会效益. [关键词]管理;RFI;编制;审批分类 [中图分类号]TU713 [文献标识码]A [文章编号]1002-8498(2011)24-0078-03 Compilation and Management of Request for Information for the International General Contract Project Wang Lishang Zhou Kang Wu Ming Zhu Jianchao Chen Wen'gang (China State Construction Engineering Corporation Middle East L.L.C.Dubai UAE) Abstract:Contractors will implement process of request for information RFI)due to technical problems in international general contract project.RFI is the main way for contractors to get information from the clients and supervisors for solving the technical problems.Authors describe the characteristics application scopes pilation theory and application process of RFI as well as categories used by the engineer to evaluate RFI and management methods.The application shows that RFI for the international general contract project can gain good economic and social benefits. Key words:management;RFI request for information);pilation;categories used by the engineer to evaluate 在履行国际项目工程合同时,在业主、监理、承程施工过程中遇到的技术问题和技术难点,获取足 包商共同管理的项目施工过程中,由于设计失误、够技术信息的有效手段,并最终为工程的顺利施 忽略、错误、各专业之间脱节,设计与现场条件不工、通过竣工验收服务,为建筑服务商争取更大的 符、节点不细化、设计变更,项目进行中监理履行设经济效益.目前在各大建筑市场中得到了广泛的 计职能等原因,使项目在进行中出现技术疑问、图应用. 纸信息、节点不细化、现场与设计不符、各专业冲突2...
2016年4月下 施工技术 第45卷第8期 CONSTRUCTION TECHNOLOGY 47 D0I:10.7672/8js2016080047 杭州来福士广场双向异面倾斜圆管柱深化 设计与加工制作 朱福锦,聂元宗,沈洪宇,周鹏,张耀林 (中建钢构有限公司,广东深圳518040) [摘要]杭州来福士广场项目外围框架圆管柱沿曲面向不同方向倾斜,给钢结构深化设计和加工制作带来了难度. 针对光滑曲线大直径圆管柱结构特点,从深化设计源头进行合理优化以便于工厂加工制作.详细介绍了双向异面 倾斜圆管柱的深化设计建模及图纸表达方法,通过精心设计,满足加工制作要求,为项目成功实施提供了充分 保障. [关键词]高层建筑;钢结构;双向异面;圆管柱;深化设计;加工 [中图分类号]TU323.1;TU758.16 [文献标识码]A [文章编号]1002-8498(2016)08-0047-04 Detailed Design and Fabrication for Inclined Circular Pipe Column with Two-way in Different Planes of Hangzhou Raffles City Project Zhu Fujin Nie Yuanzong Shen Hongyu Zhou Peng Zhang Yaolin China Construction Steel Structure Co.Lid.Shenzhen Guangdong 518040 China) Abstract:Peripheral frame circular pipe columns incline to different direction along curves in Hangzhou Raffles City project which brings difficulties to steel structure detailed design and manufacture. According to the characteristics of smooth curve large diameter circular pipe columns reasonable optimization is done from deepening the design source for the factory manufacture.This article introduced detailed design model and drawing expression method of the two-way in different planes inclined cireular pipe columns.Through elaborate design it can meet the requirements of processing production and provides a full guarantee for successful project implementation. Key words:tall buildings;steel structures;two-way in different planes;circular pipe column;detailed design;processing 1工程概况 杭州来福士广场项目由T1 T2两栋塔楼及裙 房组成.T1塔楼60层,建筑高度250m(檐口高...
[关键词】体育场;钢结构;空间结构;刚度退化;节点;设计 【中图分类号】TU311;TU758[文献标识码]A[文章编号]1002-8498(2014)14-0038-06 StructuralDesignandResearchReviewontheMain StadiumofHangzhouOlympicSportsExpoCenter Yang Xiangbing,Fu Xueyi, Liao Xinjun,Zhu Yongjun, Cheng Yongping, GaoYing,ZhouYing,Wang Tao (CCDIInteationalDesignConsulantsLimited,Bejng100013,China)
shaped in plan, theouter perimeteris about 1000m,the gross area is 210000m²and it has 80912fixed audience seatsntotal.Concrete structureadoptsframe-shearwall system,andprofile steelisembedded in some offrames and shearwall.None permanent structural joints are providedof the structure,andit is therefore an out of gauge over length structure.The maximum cantilever length of steelroof is52.5m, using the structural system of radial cantilevered space tube truss bined with circumferential chord supported single-layer reticulated shell, supported on the reinforced concrete column through upper and lower bearings.The paper primarily presents the structural system,structural form,key technical difficulties andmeasuresforrelevant specialized studies and analysis. Key words:stadiums;steel structures; spatial structure; stiffness degradation; joints;design 1工程概况场北侧看台2层平台以上开口,开口宽度40~60m。
2016年1月下 施工技术 第45卷第2期 CONSTRUCTION TECHNOLOGY 13 D0I:10.7672/sgjs2016020013 杭州国际博览中心飘带网架结构 施工全过程分析* 王化杰12,钱宏亮1,范峰2,徐义明3,刘世豪24,张甫平3 (1.哈尔滨工业大学(威海)土木工程系,山东威海264209;2.哈尔滨工业大学土木工程学院,黑龙江 哈尔滨150090;3.中建安装工程有限公司,江苏南京430064;4.中国建筑股份有限公司,北京100037) [摘要]杭州国际博览中心飘带结构是典型的自由曲面空间结构,对施工安全和施工精度提出了很高的要求,为了 了解结构在施工过程中的响应规律,考察施工方案的合理性,对其结构施工过程关键问题进行研究,建立了整体结 构施工仿真模型,针对结构的“分条分块吊装方案”,对典型吊装单元进行了吊装分析,给出了结构分块吊装过程中 吊装单元的力学响应,并给出了吊装建议,对飘带网架拼装方案和结构卸载方案进行了施工全过程模拟,获得了结 构施工过程的力学响应规律.分析结果表明,施工过程中结构的最大应力比均在0.3以下,应力比较低,变形均满 足规范1/250的控制要求,施工过程中结构处于弹性状态,施工方案合理,研究成果可以为结构施工安全和精度控 制提供理论指导. [关键词]钢结构;网架;吊装;施工;数值模拟 [中图分类号]TU393.3 [文献标识码]A [文章编号]1002-8498(2016)02-0013-05 Construction Full-process Analysis for Streamer Space Truss of Hangzhou International Expo Center Wang Huajie'.2 Qian Hongliang' Fan Feng? Xu Yiming' Liu Shihao2. Zhang Fuping' (1.Department of Civil Engineering Harbin Institute of Technology Weihai Weihai Shandong 264209 China; 2.School of Civil Engineering Harbin Institute of Technology Harbin Heilongjiang 150090 China; 3.China Construction Installation Engineering Co. Ltd.Nanjing Jiangsu 430064 China; 4.China State Construction Engineering Co. Beijing 100037 China) Abstract:Streamer structure of Hangzhou International Expo Center was a typical free-form surface spatial structure which proposed high demands on the construction safety and precision.Key issues in construction processes were studied while simulation model of the whole structure was established in order to grasp the response pattern of...
[关键词]边坡;支护;机械胀裂法;数值模拟;施工工艺 [中图分类号]TU471*.6 【文献标识码]A [文章编号】1002-8498(2017)05-0041-02 ApplicationofMechanicalBurstMethodinSlopeExcavationEngineering Ye Chunlin',CaoXiaoli²,Ma Rui',GaoWenxue² (1.Beijng MunicpalRoad&BridgeGroupCo.Ld.Bejing100068,China;2.CollefArchitecturend Civil Engineering,Beijing University ofTechnology,Beijing100124,China) Abstract;The blasting method willlead to potential safety problems in plex environment.Mechanical burst is used in many engineering applications, because of its advantage of the characteristics of rock, besides,it has good control and environmental protection.In this paper,based on a slope project in Foshan of Guangdong,numerical simulation is researched.Mechanical burst feasibility in the project is validated by field test. Key words:slope;supports;mechanical burst; simulation; construction 0引言 作业;边坡开挖高度为10~15m。
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。