[关键词】地基:软土;地源热泵;直埋式换热管;施工技术 [中图分类号】TU753[文献标识码】A[文章编号】1002-8498(2014)01-0064-03
Source Heat Pump in Soft Soil Foundation Tong Xianmin (Zhejiang Huanyu Construction Group Co.,Lid.,Shaoxing,Zhejiang 312000, China) Abstract:Because of the limited space in Shaoxing City Culture Center,direct-buried heat-exchange pipe has to be constructed in soft soil foundations. Because of the great difficulty in the construction,a new method that construct the operation cushion first, and then to bury the pipes was adopted. This method has effectively solved the problem of lack of carrying capacity in the soft foundation and prevented cross contamination. Key words: foundations; sof soil; ground source heat pump; direct-buried heat-exchange pipes; construction 1直埋式换热管地源热泵系统原理~5层为办公及培训教室。
施工技术 2016年8月上 90 CONSTRUCTION TECHNOLOGY 第45卷第15期 D0I:10.7672/8js2016150090 深基坑止水帷幕TRD工法与SMW工法应用分析 管锦春 (龙信建设集团有限公司,江苏海门226100) [摘要]随着城市建设的发展,超大、超深基悦已越来越多,基变形的控制难度也随之加大,在围护结构的设计和 施工中,止水帷革的择是关键向题,同时也是影响周边环境变化的童要团素.结含天津仁恒海河广场综含楼项 日深基悦止水帷的应用,对深基统TRD工法和SMW工法进行对比分析,从而总结两种止水帷幕的施工工艺特 点和优点,取得了庭好的施工效果. [关键词]地下工程;深基悦;止水帷暴;TRD法;SMW工法;应用 [中图分类号]TU753 [文献标识码]A [文章编号]1002-8498(2016)15-0090-03 Application Analysis of TRD and SMW Methods for Deep Foundation Excavation Waterproof Curtain Guan Jinchun Longxin Construction Group Co.Lad.Haimen Jiangsu 226100 China) Abstract:With the development of city construction the super large and deep foundation excavation has been more and more and it increases the difficulty of controlling deformation of foundation excavation.In the design and construction of retaining structure choice of waterproof curtain is key problem and is also the important factor that affeets the changes in the surrounding environment.Combined with application of deep foundation excavation waterproof curtain of Tianjin Renheng Haihe Plaza the TRD method and SMW method are contrasted and analyzed to sum up the construction characteristics and advantages of two kinds of waterproof curtain which achieves good effect. Key words:underground;deep foundation excavation;waterproof curtain;TRD method;SMW method; application 1工程概况 的不同分为11个工程地质层,34个工程地质亚层. 仁恒海河广场综合桂项目位于天津市南开区,本工程开挖范围内主要是杂镇土、黏土、粉质黏土、 该工程为框架-核心筒结构,板基础,整体地下4粉土. 展,整个地块呈L形,基开挖深度约21m 局部电 本工程周边环境复杂,地下管线较多;场地东 梯井和集水悦处开挖深度达约24m.基周边长度侧...
[关键词】深基坑;顶管;土方开挖;监测;围护结构;施工技术 [中图分类号]TU753 [文献标识码]A [文章编号]1002-8498(2017)05-0035-06 NewConstructionTechnologyApplicationofDeepFoundation ExcavationinAccessoryPipeNetProjectof aSewage TreatmentPlant Guo Zican (SchoolfArchiture,HubeiPolyechnicInstite,Xaogan,Hubei432000,China) Abstract:The accessory pipe net project of a sewage treatment plant includes sewage pipeline engineering and reclaimed water pipeline engineering, it arranges sixteen deep foundation excavation of pipe jacking and divides into three types. There are four operating conditions for pit excavation, ensuring the excavation eficieney and safety. The destroyed cast-in-place piles which are situated in pipe jacking passageway take the reinforcement and increase by rubber water stop flange and water stop structure, ensuring the global stability of exterior-protected structure.When foundation excavation is excavated, dewatering wells are arranged in foundation excavation. It should retain one dewatering well at least after back cover and links with drainage blind ditch, constituting the drainage system of inside pit and improving the pit dewatering efficiency. It sets up many monitoring sites including the horizontal displacement observation point of deep pile body,horizontal displacement of pile top,vertical displacement observation point,underground water level observation point and so on. Moreover, the operatorsobserve hemonitoring sites alamsbeyondornotatregular intervalsavoiding theinstabilityf exterior-protected structure. Key words: deep foundation excavation; pipe jacking; earth excavation; monitor...
2011年10月上 施工技术 第40卷第350期 CONSTRUCTION TECHNOLOGY 61 深基坑数值模拟与现场监测分析 何本贵,刘芳2,高谦3,王秀丽 (1.林同楼国际工程咨询(中国)有限公司北京分公司,北京100101; 2.清华大学基建规划处,北京100084;3.北京科技大学土木与环境工程学院,北京100083) [摘要]以北京某深基坑工程为例,利用数值模拟和现场监测结果,对基坑的设计和施工进行稳定性评价.考虑了 地下连续墙与土体的相互作用,利用有限差分数值计算方法模拟深基坑开挖支护的动态过程,并与基坑变形监测 数据相比较,从不同角度对深基坑的开挖支护进行稳定性评判.结果表明,理论分析和实际监测结果较吻合,为本 工程的顺利实施提供了依据. [关键词]地下工程;深基坑;地下连续墙;施工模拟;监测 [中图分类号]TU413.62 [文献标识码]A [文章编号]1002-8498(2011)19-0061-03 Analysis of Numerical Simulation of Deep Foundation and On-site Monitoring He Bengui' Liu Fang? Gao Qian' Wang Xiuli' (1.Beijing Branch of T.Y.Lin International Engineering Consulting China)Co.Ltd.Beijing 100101 China; 2.Construction and Campus Planning Office of Tsinghua University Beijing 100084 China: 3.Civil Environment Engineering School University of Science Technology Beijing Beijing 100083 China) Abstract:Based on some deep foundation engineering in Beijing authors make stability evaluation on design and construction of foundation excavation according to numerical simulation and on-site monitoring.Taking the interaction of diaphragm wall and soil into consideration authors simulate the excavation step sequence by using the finite difference numerical calculation and pare with foundation deformation monitoring data.They make stability evaluation on deep foundation excavation and support from different angles.Results show that theoretical analysis and actual monitoring results agree well which make the construction smooth. Key words:underground;deep founda...
2013年7月上 施工技术 第42卷第13期 CONSTRUCTION TECHNOLOGY 1 D0I:10.7672/sgjs2013130001 深基坑支护结构和施工新技术 应惠清 (同济大学土木工程学院,上海200092) [摘要]简要介绍了我国基坑工程发展概况,重点介绍了复合土钉墙、双排桩、型钢水泥土搅拌墙等新型支护结构 以及几种施工新设备、新工艺.分析了地下结构逆作法和利用“时空效应”开挖技术的工程应用. [关键词]地下工程;深基坑;支护;逆作法;时空效应;施工技术 [中图分类号]TU753 [文献标识码]A [文章编号]1002-8498(2013)13-0001-05 New Support Structure and Construction Technology of Excavation Engineering Ying Huiqing College of Civil Engineering Tongji University Shanghai 200092 China) Abstract:This paper introduces the development of excavation engineering in our country focusing on the new structure of posite soil nailing wall double-row-piles wall soil mixing wall and some new construction equipment and process.Engineering application about top-down method of the underground structures and earthwork excavation use of space-time effect were analyzed in this paper. Key words:underground;deep foundation excavation;supports;top-down method;space-time effect;construction 1我国基坑工程的发展概况 主,由于缺乏规范指导,工程设计施工或以经验为 20世纪90年代以来我国建筑基坑工程技术得 主,或以理论为主.而今,基坑工程满足环境保护 到长足发展.回顾这一时期基坑工程技术的发展 已成为设计施工的基本出发点.基坑工程必须高 历程,大略可分为2个阶段:第1阶段是20世纪80度重视环境保护,坚持理论和经验相结合,现已成 年代末到90年代末,是研究、探索阶段.当时我国为业界的共识. 掀起城市建设高潮,涌现了大量地下工程,但工程 早期基坑设计方法主要依据古典的土力学原 界尚缺乏大型深基坑的设计与施工经验,一线城市理,采用极限平衡法,诸如卜鲁姆法(H.Blum)、盾 开始对深基坑工程进行研究和工程实践.第2阶段恩法、相当梁法等.但这些方法与实际受力状况有 是21世纪初的10多年,这是一个发展阶段.在前 一定差异,且不能计算结构位移,因而目前已很少 10年已取得的理论和实践成果的基础上,基坑工程 采用,被弹性支点法所替代.基于有限元商用软件 技术得到了进一步发展和提升.如果说2000年前 的推广,采用有限元进行分析逐步得到应用.有限 后颁布了一批有关基坑工程的国家行业标准和地 元分析可考虑结构与土相互作用、土的弹塑性等, 方标准是我国基坑工程发展第1阶段总结的话,那 ...
[关键词]地下工程;深基坑;抽灌一体化;双水位控制;设计 [中图分类号】TU473【文献标识码】A[文章编号]1002-8498(2014)01-0048-05
Deep Foundation Excavation Lu Jiansheng',Pan Weiqiang²,Shen Chi',Lin Changrong (1.Shanghai Guanglian Construction Development Co.,ltd.,Shanghai 200438, China; 2.Shanghai Tunnel Engineering Co.,Ltd.,Shanghai 200082, China) Abstract;To control the environmental deformation of buildings constructed caused by falling groundwater levels,pumping-recharge integration design and operation control concept of deep foundation excavation were put forward. Dual groundwater level control is the guidepost of integrated design and operation control,the method that pumping water by the pipeline was injected directly into aquifers can avoid contamination of aquifers, and pared with the tap water it can save the water resource. The connotation,principle,characteristics and control points of pumping-recharge integration system were discussed. At last taking the hub station of Hanzhong Road Station in Shanghai as an example, the application and engineering practice of the deep foundation excavation pumping-recharge integration design and operation control were summarized. Key words:underground; deep foundation excavation; pumping-recharge integration; dual groundwater level control; design 0引言响[6]。
[关键词]地下工程;地铁;深基坑;立柱;侧压力 [中图分类号】TU753.1 [文献标识码]A [文章编号】1002-8498(2013)19-0043-02 AnalysisontheLawofthePillarBearingForce During Deep Excavation Yu Jun (CollegeofCivilEngineering andArchitecture,Zhejiang University ofTechnology,Hangzhou,Zhejiang310014,China) Abstract:The bearing force of the pillars changes continuously and deformationis plex.The stability of pillars is important to the safety of supporting structure and it is necessary to study the bearing condition of pillars.Taking an example as foundation excavation of some subway in Ningbo,the bearing force law of pillars was analyzed based on time and space effect of excavation. The result shows that the pillars sunk firstly and uplifted then,and the boundary is related to the depth of foundation excavation and soil properties. The deep and shallow foundation excavation is divided according to it. It was found that the pillars confined the changing bottom of foundation excavation and the stability was improved. Key words;underground; subways; deep foundation excavation; pillars; lateral pressure 基坑工程施工中,安全是施工人员首要关注的这两个摩阻力作用下,立柱被拉伸。
[关键调】地下工程;深基坑;锚固;数值分析;优化 [中图分类号]TU753[文献标识码]A[文章编号]1002-8498(2011)19-0054-04 SimulationofFoundationExcavationandStudyon theAnchoringOptimization Yuan Zhiyang (School ofManagement,Changchun Institute ofTechnology,Changchun,Jilin 130021,China) Abstract;Based on the software FLAC",the author sets up the simulation model of excavation and support of the deep foundation by using the Mohr-Coulomb model and analyzes the foundation excavation soils deformations under different stages. The horizontal displacement of the soils, the settlement of ground and uplifts in the bottom of the foundation increase with,the increase of the excavation depth.The numerical simulation method can provide guidance for the project construction. Based on the chaos optimization algorithm, the author optimizes anchoring scheme which reduces the cost at 25.4%.The determination of design variables, objective function,constraint condition and optimization algorithm in anchoring optimization scheme are introduced. Key words:underground;deep foundation excavation;anchor;numerical analysis;optimization 当今我国基坑支护现状是基坑越挖越深、工程糊集理论和层次分析法,建立优化设计思路,优化 地质条件越来越复杂、周围建筑物越来越密集、支设计方案并且对结构细部的设计计算进行优化,对 护费用越来越高。
[关键词】深基坑;变形;监测;数值模拟;分析 [中图分类号]TU753 [文献标识码】A [文章编号]1002-8498(2017)08-0032-04 AnalysisonInteractionBetweenDeepFoundation Excavation andAdjacentBuildings PENG Zhixiong,ZHOU Yuangang (College of Engineering,China Universty of Geosciences,Wuhan,Hubei 430074,China) software is used to simulate the excavation of foundation excavation, and the deformation law of foundation excavation is analyzed and predicted. Compared with the calculation and monitoring results of pile body horizontal displacement and ground settlement, it can be known that the changes of the two laws are basically the same, which verifies the reliability of the numerical simulation results. Based on this model, it is obtained that increasing the stiffness of retaining piles is an effective measure to reduce the horizontal displacement of retaining structure and the settlement of adjacent buildings,and the stability of foundation excavation is improved to a certain extent by increasing the stiffness of steel support. At the same time, the relationship between the maximum lateral displacement of the retaining structure and the maximum surface settlement can be fitted with a straight line y = kx,and it can be bined with the design scheme to estimate the maximum surface subsidence value, which has a certain practical significance. Key words:deep foundation excavation;deformation;monitoring; simulations;analysis 0引言 临近建筑物的存在是基坑工程所面临最普遍 随着城市建设的大规模发展,建筑规模逐渐向的问题。
2014年3月下 施工技术 第43卷第6期 CONSTRUCTION TECHNOLOGY 27 D0I:10.7672/5js2014060027 深基坑工程锚杆施工造成周边建筑物沉降的分析研究 郭金武,倪晓荣,白志华,王勇 (中国新兴建设开发总公司,北京100039) [摘要]根据人民日报社报刊综合业务楼工程地质及水文地质条件,最终确定采用桩锚支护结构进行深基坑施工. 根据施工要求对临近周边建筑物基坑进行了支护处理,介绍了错杆具体施工方法和工艺流程.并对基坑沉降进行 监测,确定沉降监测方法.对沉降监测数据进行分析,最终得出理论分析结果与实际监测数据较为吻合,满足施工 要求. [关键词]高层建筑;地基;深基坑;错杆;沉降 [中图分类号]TU753 [文献标识码]A [文章编号]1002-8498(2014)06-0027-03 Influence of Deep Foundation Excavation Anchor Construction on the Settlement of Surrounding Buildings Guo Jinwu Ni Xiaorong Bai Zhihua Wang Yong China Xinxing Construction Derelopment General Co. Beijing 100039 China) Abstract:According to the engineering geology and hydrogeology condition of the People's Daily Integrated Business Building the support bination method of piles and anchors is determined.For the construction requirement the support treatments are applied for surrounding buildings meanwhile the concrete construction method and process of the anchors are introduced.The monitoring method is obtained to control the foundation excavation settlement.The data by theoretical analysis are agreed with the actual monitoring data very well by the analysis of the settlement monitoring data and the construction requirement is guaranteed. Key words:tall buildings;foundations;deep foundation excavation;anchors;settlement 1工程概况 民20乙 老干部活动中心 ① 招 人民日报社报刊综合业务楼工程主要由报刊 民30 所 综合业务楼、图书馆及学术交流中心组成,报刊综 合业务楼地下3层,地上32层.拟建工程场区周边 情况简述如下. 多 人民日报社报刊综合 北区食堂 台西路 业务楼工程(一期) 周边墙 场地北侧东部为报社家属楼和老干部活动中 心,其中20号甲家属楼地上6层,基础埋深约 1.5m 距本工程地下室...
2015年4月上 施工技术 第44卷第7期 CONSTRUCTION TECHNOLOGY 83 D0I:10.7672/5j52015070083 深基坑围护结构变形监测与数值模拟分析 万志辉,刘红艳,步艳洁 (辽宁工业大学土木建筑工程学院,辽宁锦州121001) [摘要]以某深基坑工程为研究对象,采用有限差分软件FLAC3对该深基坑围护结构施工过程进行数值模拟,并 将计算结果与监测结果进行对比分析.采用建立的计算模型,按单因素分析方法对深基坑围护结构变形的影响因 素进行分析.结果表明,增加围护结构的入土深度可以有效减小其侧移值,但围护结构入土深度满足基坑变形稳 定性要求后,继续增加入土深度对控制其侧移的效果并不明显;随着土体的弹性模量和内摩擦角的增大,围护结构 的侧移明显减小. [关键词]地下工程;深基坑;围护结构;监测;变形;数值模拟 [中图分类号]TU753 [文献标识码]A[文章编号]1002-8498(2015)07-0083-04 Analysis of Deformation Monitoring and Numerical Simulation on Retaining Structure of Deep Foundation Excavation Wan Zhihui Liu Hongyan Bu Yanjie (School of Ciuvil and Architectural Engineering Liaoning University of Technology Jinzhou Liaoning 121001 China) Abstract:This paper used FLAC to simulate numerically retaining structure of deep foundation construction process by taking a deep foundation excavation engineering as object.Meanwhile analysis was made from its results pared with monitoring data.The influence factor of retaining structure of deep foundation excavation deformation was analyzed by single factor analysis using established calculation model.The results indicated that inereasing the embedded depth of retaining structure can effeetively reduce its lateral displacement.However when the embedded depth of retaining structure satisfied the requirement of deformation stability the effect was not obvious as continue to increase the embedded depth.As the elastic modulus increased and angel of internal friction of soil expanded the lateral disp...
[关键词]地下工程;基坑;支护;钻孔灌注桩;施工技术 [中图分类号】TU753 [文献标识码】A [文章编号】1002-8498(2013)17-0056-05 ApplicationofDeepFoundationExcavationDeepening Technology in Some Engineering Liang Jianming (Guangdong Construction Engineering Group Co.,Lad.,Guangzhou,Guangdong 510635,China) Abstract; New foundation excavation is designed based on old foundation excavation for some engineering,underground cables and water pipes are buried under sidewalk,which requires strict for deformation,bored pile is selected to support foundation excavation. The displacement and settlement for step-slope segment tends to be stable by observation with 3 years on the top of old foundation excavation, new foundation excavation support hold upper part,bored piles for support set from - 3.5m. Backfill is consolidated between new and old foundation excavation. Based on the engineering,the author introduces selection modes and design method of new foundation excavation support, and construction points, including construction of bored piles,construction points for sleeve valve pipe grouting. Key words:underground; foundation excavation; supports;bored piles; construction 城市土地资源宝贵,地下空间不断开发,而且62m,宽约50m,基坑开挖较深,大面积开挖深度为 越来越深。
2011年7月下 施工技术 第40卷第345期 CONSTRUCTION TECHNOLOGY 19 深圳证券交易所营运中心超长悬挑钢结构整体 卸载及同步监测技术 王朝阳,陈治,杨松,程鹏,程建勇 (中建钢构有限公司,广东深圳518040) [摘要]深圳证券交易所营运中心抬升裙楼采用超长巨型悬挑钢桁架结构体系,桁架下弦距地面36m 由6类14榴 巨型钢桁架构成,悬挑22m 是世界上最大的空中花园.施工过程中,钢结构卸载是关键.结合超长悬挑裙楼钢结 构卸载,详细介绍了卸载工艺,并总结卸载过程中结构的监测重点和监测方法.指出卸载过程中同步监测的必要 性和重要性. [关键词]钢结构;抬升裙楼;卸载;同步监测 [中图分类号]TU758.15 [文献标识码]A [文章编号]1002-8498(2011)14-0019-04 Integral Unloading and Synchronous Monitoring Technology of Super-long Cantilever Steel Structure in Trading Center of Shenzhen Stock Exchange Wang Chaoyang Chen Zhi Yang Song Cheng Peng Cheng Jianyong China Construction Steel Structure Co.Ltd.Shenzhen Guangdong 518040 China) Abstract:The podium of Trading Center of Shenzhen Stock Exchange project is super-long cantilever steel truss structure.The bottom chord of the cantilever part is 36 meters from ground.The podium is posite of 6 categories 14 giant steel trusses the cantilever length is 22 meters which is the largest sky garden in the world.During construction the unloading process of the steel structure is the key.The authors introduce the unloading technology of the structure and the key monitoring method during the unloading.The authors point out the important and necessary of synchronous monitoring during the unloading process. Key words:steel structure;uplifted podium;unloading;synchronous monitoring 1工程概况 监测.裙楼钢结构安装完成如图1所示. 深圳证券交易所营运中心抬升裙楼,采用超长 巨型悬挑钢桁架结构体系,桁架下弦距地面约36m 由6类14福巨型钢桁架构成,平面尺寸东西长 162m 悬挑36m 南北宽98m 悬挑22m 是世界上最 大的空中花园.整个抬升裙楼用钢量约2.8万t 悬 挑部分重9400多t. 裙...
2012年2月上 施工技术 第41卷第358期 CONSTRUCTION TECHNOLOGY 55 深圳证券交易所营运中心管井立管倒装法施工技术 黄晨光,刘业炳,裴以军,晏新亮,黄立鹏 (中建三局第二建设工程有限公司安装公司,湖北武汉430074) [摘要]根据超高层建筑机电工程管井立管施工的特点,突破常规施工技术,结合工程实例阐述了超高层建筑机电 工程管井立管一种新的施工技术,即倒装法施工技术,并详细分析倒装法施工技术的工艺流程,施工方法及施工效 果.采用倒装法施工技术,可以提高管井立管的施工质量和施工进度,确保施工安全,节约施工成本. [关键词]高层建筑;机电;管井;施工技术;倒装法 [中图分类号]TU758.7 [文献标识码]A [文章编号]1002-8498(2012)03-0055-03 Construction Technology of the Reversal Installation Method for Standpipe of Pipeline Well in Shenzhen Stock Exchange Center Huang Chenguang Liu Yebing Pei Yijun Yan Xinliang Huang Lipeng Installation Company the Second Construction Co.Ltd.of China Construction Third Engineering Bureau Wuhan Hubei 430074 China) Abstract:Based on construction characteristics of standpipe of pipeline well of electromechanical engineering in tall building the authors introduce a new construction technology of reversal installation method for the standpipe which breaks through normal construction technologies.The authors analyze in detail construction process construction method and construction effect.The reversal installation method can improve construction quality and construction progress assure construction safety and save construction cost. Key words:tall buildings;electromechanical;pipe well;construction:reversal installation method 根据目前超高层建筑管井立管施工技术分析, 根据目前超高层管井立管施工现状,结合深圳 通常采用传统的“正装法”进行管井立管施工,其施证券交易所营运中心工程实际,提出了一种新的管 工顺序为由下向上逐根连接安装,每层均要放置管 井立管施工技术,即倒装法施工技术.现以深圳证 道,并水平运输至管井处,此种方法大大增加管道 券交易所营运中心工程为例进行详细阐述管井立 垂直及水平运输次数,降低施工效率,增大安全风 管倒装法施工技术....
2011年2月 施工技术 第40卷第3期 CONSTRUCTION TECHNOLOGY 63 深圳福田站超大超深地下建筑施工优化 郭献珍 (中铁十五局集团有限公司广深港客逸专线项目部,广东深518048) [摇要]广深港客运专线深列福为图内首座大型全地下新建联路客运专线手站.针对超大超深地下空尚建就 工程的设计施工方,施工工艺进行研究、评审、比、优化,童点采用全善挖作法施工,开展全程盐测监拉预馨 报莹,达到确施工安全、质量、工期要求,实环保、吊有读源、降低成本目标:提高施工企业的社全和经清故益. [关键词]铁路站:巷悦:建筑方:施工优化:盖挖逆作法 [中密分类号]TU744 [立献标识码]A [立章编号]10028498(2011)03-0063-04 SuperHarge and Super-depth Building Construction Optimization of Futian Railway Station in Shenzhen Guo Xianzhen (Guangzhou-Shenzhen-Hong Kong Passenger Dedicated Line Project Department China Railcay 15th Construction Bureau Co.Ltd.Shenzhen Guangdong 518048 China) Abstract:Futian railway station in Shenzhen in Guangzhou-Shenzhen-Hong Kong passenger dedicated line is the first large scale full underground station in China.Before engineering construction the design and construction scheme and construction technologies for the superHarge and super-depth underground station are researched evaluated pared and optimized and cover-and cut reverse construction method is used in station construction.During construction monitoring and warning alarm in whole process is done to assure construction safety construction quality and construction period.This construction method can achieve the goal of environmental protection save resouree and reduce cost. Key words:railway station:foundation excavation:building scheme:construction optimization:cover- and cut reverse construction method 1工程概况 站址位于深市福田中心深南大道与益田路交 广深港客运专残深州福田站,地下3层、4站汇处,沿益田路下星纺锤形从北向南布置,两端连接 台、8轨道、...
[关键词】深圳湾体育中心;钢结构;空间网格结构;合龙;卸载;位移监测 [中图分类号]TU758.11[文献标识码]A[文章编号]1002-8498(2011)14-0015-04 Closure and UnloadingTechnologies of Spatial ChangingSurface Grid StructureinShenzhenBaySports Center Xu Chongliang,Wen Xiaoyong,Pan Xiaofeng,Tang Qichao,Zhu Hongbing (China Construction Steel Structure Co.,Ld.,Shenzhen,Guangdong 518040,China)
grid structure with spatial changing surface. The ponents of the steel roof is designed as box section with different bending and torsion. Furthermore the structural span is 500m,so it is sensitive to temperature difference.Later constructed belt is designed at key positions to eliminate structural stress. There are 250 support points in I bid section for in-site installation with operation frame,so the closure and unloading is more difficult. The closure ponents are welded with temporary connections before construction of main welding at closure point. Then the temporary connections are cut off when the welding is pleted. The special unloading equipments is cut off after unloading finished,and the ponents can loading on bearings. Key words;Shenzhen Bay Sports Center;steel structure; spatial grid structure; closure; unloading; displacement monitoring 1工程概况运动员接待中心 深圳湾体育中心主场馆长约500m,宽约240m,副馆 由体育场、体育馆及游泳馆组成。
【关键词】大跨度钢结构;卸载;几何非线性;分步成型 [中图分类号】TU758.11 [文献标识码]A [文章编号】1002-8498(2011)14-0009-03 UnloadingAnalysisofLarge-spanSteelRoofStructure inShenzhenBaySportsCenter Zhou Ming,Gao Jie,You Shengzhi, Chen Huazhou (ChinaConstructionStelSructureCo.,Ld.,Shenzhen,Guangdong518040,China) Abstract;Division and multi-step unloading is adopted in large-span steel roof structure in Shenzhen Bay Sports Center.The structure is divided into 34 sections, the safety of unloading,selection of jack type and estimation of unloading displacement need pre-analysis.Because of geometrically nonlinear influence, there are must be the difference between multi-stage forming structure and design shape. Authors suggest that ifmaking the stressing state ofunloading structure asinitial statein structure design, with secondary checking calculation bined with other conditions, the construction degree of freedom should be improved. Key words :large-span steel structure; unloading; geometrically nonlinear;multi-stage forming 1工程概况 深圳湾体育中心位于深圳湾滨海休闲带中段、 后海填海区内,其主要建设有“一场两馆”,即体育 场、体育馆和游泳馆,总建筑面积25.6万㎡²(见图 1)。
[关键词]防水工程;屋面工程;MAC防水保温一体化板;标准化;施工 [中图分类号】TU761.1 [文献标识码]A [文章编号]1002-8498(2016)03-0085-03 DesignandConstructionofRoofWaterproofandInsulation EngineeringofaLogisticsWarehouseinShenzhen Wang Zhenwen,Chen Jin (Shenzhen Joaboa Technology Co.,Lad.,Shenzhen,Guangdong 518049,China) Abstract:MAC waterproof thermal insulation boards are used in a roof waterproof and insulation project of a logistics warehouse in Shenzhen.The process flow,construction method,attentions and treatments of relevant joints are introduced.The waterproof and thermal insulation integrated system made by integrated insulation boards and rubber asphalt waterproof coating overe the shortings of the mutual reduction of the waterproof and thermal insulation function of the traditional roof system, simplify the roof structure and reduce the load on the building roof, confirming the new system has good waterproof effects. Keywords:waterproofing;roofs;MACwaterproof thermalinsulationboard; standardization;construction 1工程概况 该项目屋面防水设计为I级,屋面板采取结构 深圳某物流仓库项目(见图1)位于深圳市前海找坡的方式,采用2mm厚橡胶沥青防水涂料+ 公楼组成,占地面积70045m²,总建筑面积约热系数为0.024W/(mK),热阻R为 120683m²,总的屋面防水保温面积30000m²。
2012年8月上 施工技术 第41卷第370期 CONSTRUCTION TECHNOLOGY 55 深圳机场能源中心水蓄冷布水系统安装技术 谢上冬,黄远强,陈立群 (中建工业设备安装有限公司,江苏南京210046) [摘要]深圳机场能源中心水蓄冷系统,蓄冷水罐设计有效总容积为55200m3 由4个13800m3的水罐组成.蓄冷 水罐性能指数要求高,如何选择布水方式、布水器的形式及布水系统的计算是本工程的难点.经过技术攻关,成功 解决了上述难题,获得了良好的经济效益.主要介绍蓄冷水罐水蓄冷布水系统的安装技术. [关键词]机场;能源中心;蓄冷水罐;布水系统;安装 [中图分类号]TU758.7 [文献标识码]A [文章编号]1002-8498(2012)15-0055-03 Installation Technique of Chilled Water Storage Distribution System in Shenzhen Airport Energy Center Xie Shangdong Huang Yuanqiang Chen Liqun China Construction Industrial Equipment Installation Co.Ltd.Nanjing Jiangsu 210046 China) Abstract:The Energy Center of Shenzhen Airport was designed to have an effective chilled water volume of 55 200m2 which was constituted of four water tanks of 13 800m.These chilled water storage tanks were subjected to high performance request.Technical difficulties included the selection of water distributor design of the distribution system and system calculations.These difficult problems were solved by concentrated study and good economic benefit was gained.This paper gives an introduction to the installation technique of the chilled water distribution system in Shenzhen Airport Energy Center. Key words:airports;energy center;chilled water storage tank;influent distribution system;installation 1工程概况 匀布置,水流分配口水流进口雷诺数Re=240~ 深圳机场能源中心冷源供冷形式采用电制冷850,流速均匀并<0.03m/s. 水蓄冷方式.水蓄冷系统中,蓄冷水罐设计有效 3)布水系统的水流分配口形式和数量通过计 总容积为55200m3 由4个13800m3的水罐组成. 算确定,但必须确保达到上述技术要求,最终效果 布水系统的设计就是通过精确的计算和布置,控制 确保达到单个水罐蓄冷量12.7万kWh的要求. 水流平稳地进入或引出...
2010年4月 施工技术 第39卷第4期 CONSTRUCTION TECHNOLOGY 109 深圳机场T3航站楼幕墙CAD系统设计 胡振中1,王重力2,李国星2 (1.清华大学深圳研究生院,广东深圳518055;2.珠海市晶艺玻璃工程有限公司,广末深圳518040) [摘要]深圳机场3航站楼的幕墙造型采用了自由曲面上参数化造型的设计,建筑设计方使用空间三维坐标点的 方式给出了航站楼外表皮的单层单线模型.在进行施工图深化设计时,需根据该模型以及施工图设计过程中所需 的各种指导生产/安装的信息,对原数据进行相应的预处理,从面建立符合施工图要求的多层构造的三维模型,并 实现图纸输出.笔者开发了集预处理、自动建模、后处理等功能于一体的聚圳机场T3航站楼幕墙CAD系统(T3- CW-CAD) 旨在提高幕墙施工图设计工作的效率.详细讨论了该系统的需求、数据结构和核心算法. [关键词]深圳机场T3航站楼;计算机辅助设计;幕墙;三维建模 [中图分类号]TU201.4;TU248.6 [文献标识码]A【文章编号]1002-8498(2010)04-0109-04 A Computer Aided Design System for Curtain Wall Engineering of Shenzhen Airport Terminal 3 Hu Zhenzhong' Wang Zhongli2 Li Guoxing2 (1.Graduate School at Shenthen Tsinghua University Shenthen Guangdong 518055 China; 2.Zhuhai King Glass Engineering Co.Lad.Shenthen Guangdong 518040 China) Abstract:The facade of Shenzhen Airport Terminal 3 (T3)is a parametric shaping design based on free- form surface.Architect provides a single layer wireframe model for facade outer skin by listing related spacial point coordinates.During design development it's required for facade consultant to pretreat the raw data from architect in order to develop information of guidance for fabrication and construction and then rebuild a multi-layer 3D model with post-treatment besides drawing output.Thus based on the raw model and data a CAD system integrated pretreatment/auto-modeling/post-treatment for curtain wall engineering of T3 (T3-CW-CAD)is developed to increase the efficiency of drawing designing.The authors discuss the requ...