施工技术 2016年2月上 34 CONSTRUCTION TECHNOLOGY 第45卷第3期 D0I:10.7672/sgjs2016030034 稻壳灰与不同减水剂适应性研究* 吕燕霞,戴俊辉 (浙江工业职业技术学院,浙江绍兴312000) [摘要]研究稻壳灰在与不同减水剂的复合作用过程中流动性、流动性经时损失、强度等方面的变化规律,分析稻 壳灰与减水剂的适应性,探索利用外加剂调控水泥稻壳灰复合胶凝材料的可行性,完善稻壳灰与其他原材料的匹 配关系.结果表明:稻壳灰对高分散聚羧酸减水剂的应用性能影响最大,严重加剧流动性经时损失;保坍型外加剂 能够有效改善稻壳灰浆体流动性经时损失严重的问题,但是会严重减缓水泥水化进程;稻壳灰对萘系减水剂的作 用规律影响不大,与纯水泥体系相近. [关键词]混凝土;稻壳灰;减水剂:流动性;经时损失;水化进程 [中图分类号]TU528 [文献标识码]A[文章编号]1002-8498(2016)03-0034-05 Study on the Adaptability of Rice Husk Ash in Different Water Reducers Lu Yanxia Dai Junhui Zhejiang Industry Polytechnic College Shaoxing Zhejiang 312000 China) Abstract:The influence of rice husk ash RHA)on flowability flowability loss with time and strength were studied in the posite with different water reducers.The adaptability of rice husk ash and water reducers are analyzed to explore the matching relationships of rice husk ash with other raw materials.The results showed that the rice husk ash had the biggest impact on application performance of polycarboxylic acid admixture with high dispersing and aggravated by the flowability loss;polycarboxylic acid admixture with low slump can effectively improve the rice husk ash produced by loss during severe liquidity problems but can seriously slow cement hydration process.Effect of the rice husk ash on naphthalene based water reducers was relatively stable which is closed to the pure cement system. Key words:concrete;rice husk ash;water reducers;flowability;loss with time;hydration 0引言 稻壳灰与萘系减水剂、高分散性聚羧酸...
2014年5月下 施工技术 第43卷第10期 CONSTRUCTION TECHNOLOGY 95 D0I:10.7672/8js2014100095 白沙职教园区施工期环境影响及防治评价 柴金玲,王永 (河南交通职业技术学院,河南郑州450000) [摘要]基于生态区白沙职教园区河南交通职业技术学院新校区一期建设,对重点工程施工过程中可能产生的主 要污染进行分析和研究,做出工艺流程与产污环节示意图,并通过施工过程中污染的治理效果分析,提出施工建设 过程中采取的环境治理和防治措施以及工程环保投资及验收要点,并对以后建设的工程环境防治提出提前分析、 提前监测、提前治理的预防治方式. [关键词]环境影响;保护;污染;防治;评价 [中图分类号]TU712 [文献标识码]A [文章编号]1002-8498(2014)10-0095-04 Evaluation on the Environmental Impact and Prevention in Construction Period in Ecological Baisha Vocational Education Park Chai Jinling Wang Yong He'nan Communication Vocational Technology College Zhengzhou He'nan 450000 China) Abstract:Based on the new campus of He'nan Vocational and Technical College of Communications in Ecological Baisha Vocational Education Park the major kinds of pollution are analyzed probably in construction then the construction process and pollution link are made.The environment protection the key points of environment investment and acceptance in construction are proposed by pollution treatment' s effect analysis and the prevention of advanced analysis advanced monitoring and advanced treating in post construction is also proposed. Key words:environmental impact;protection;pollution;prevention;evaluation 自2009年以来,郑州市大力推进“大郑东新PM2.5值,结果显示该地区环境空气质量良好. 区”建设,积极推动中原生态区郑汴产业带开发提 2)地表水环境质量现状监测主要区域为贾鲁 速.作为大郑东新区发展规划重点项目的白沙组 河.根据郑州市水环境功能区划,贾鲁河为《地表水 团现代职教园区内将陆续进驻13所高校.职教园 环境质量标准》GB3838一2002规定的V类功能区. 区位于白沙组团内,规划学生规模总数15万,总投 3)地下水环境质量现状本项目区域全年地 资约60亿元,这些高校将成为河南实施中心城市带 下水位在8-10m 水质相对较好,均符合《地下水质 动战略,促进...
施工技术 2010年7月 90 CONSTRUCTION TECHNOLOGY 第39卷第7期 玻化微珠整体式保温隔热建筑构造与施工 代学灵,李珠,魏增宝 (大原理工大学建筑与土木工程学院,山西大原030024) 【摘要]通过使用高性能的保温材料以及运用独特的保温构造和施工工艺,用承重型玻化微珠保温混凝土和玻化 微珠保温砂浆替代传统混凝土和抹灰砂浆,在室内空间六面形成封闭的集承重、围护、保温、装饰于一体的整体式 保温系统.主要介绍了这种保温系统地面、楼面、屋面、内墙和外墙的构造,以及施工技术. [关键词]玻化微珠保温砂浆;施工工艺;整体式保温隔热建筑;构造 [中图分类号]TU761.12[文献标识码]A[文章编号]1002-8498(2010)07-0090-03 Structure and Construction of Integrated Thermal Insulation Buildings with Glazed Hollow Beads Dai Xueling Li Zhu Wei Zengbao (College of Architecture and Ciuil Engineering Taiyuan University of Technology Taiyuan Shanxi 030024 China) Abstract:An integrated thermal insulation system was introduced by using high performance thermal materials particular heat preserved structure and unique construction technique.Thermal insulation glazed hollow head concrete and mortar were developed in construction envelop interior walls ceiling and floor instead of mon concrete and traditional plastering-plaster separately.Heat preservation decoration and reducing self-weight of building were all included in this new system.The authors mainly introduced structure of ground floor roof inner and outer wall and construction technology of this system. Key words:thermal insulation glazed hollow bead mortar;construction technology;integrated thermal insulation buildings;structure 1整体式保温隔热建筑及优点 2.1主要形式 整体式保温隔热建筑是指在建筑设计、施工或节 1)现浇整体式保温体系在新建现浇剪力墙结构 能改造时,借鉴传统土窑洞的整体式保温隔热原理,用 体系中,用承重型玻化微珠保温混凝土替代普通混凝 轻质、保温、环保、隔声、阻燃的承重型玻化微珠保温混 土进行墙、板等构件整体浇筑,在形成混凝土结构体系 凝土和玻化微珠保温砂浆替代传统混凝土和抹灰...
施工技术 2010年2月 74 CONSTRUCTION TECHNOLOGY 第39卷第2期 现浇鱼腹式箱梁钢木组合模板施工技术 方兴 (中建三局工程总承包公司,湖北武汉430070) [摘要]鱼腹式结构凭借造型优美的特点被广泛应用于桥梁设计中.以长沙市市政桥梁工程为例,闹述鱼腹式箱 梁结构钢木组合模板体系关键技术,包括平台施工、钢塔架设计与安装、底模铺设、箱梁钢筋绑扎、内模制作与安 装、预应力施工等.结果表明,现浇鱼腹式箱梁钢木组合模板可满足桥梁外形要求,节约施工成本,取得良好的经 济效益和社会效益. [关键词]桥梁工程;模板工程;鱼腹式箱梁;钢木组合模板 [中图分类号]U445 [文献标识码]A [文章编号]1002-8498(2010)02-0074-02 Construction Technology of Cast-in-place Fish-bellied Box Girder with Steel-wood Composite Formwork Fang Xing General Contraction Company of CCTEB Wuhan Hubei 430070 China) Abstract:The fish-bellied structure with graceful sculpt is widely applied in bridge design.Taking some municipal bridges in Changsha as examples key construction technologies of cast-in-place fish-bellied box girder with steel-wood posite formwork are outlined including platform construction design and installation of steel tower laying of bottom formwork manufacture and installation of internal formwork as well as prestresed construction and so on.The results show that bridge shape can be demanded by adopting cast-in-place fish-bellied box girder with steel-wood posite formwork thus construction cost is saved which can gain good economic and social benefits. Key words:bridge engineering;formwork engineering;fish-bellied box girder;steel-wood posite formwork 随着国内城市基础设施建设的不断推进,大量结木组合模板体系的施工.施工工艺流程:地基处理→ 构新颖、造型美观的城市高架桥不断涌现.鱼腹式箱支架搭设→钢胎架设计→钢胎架安装→底模铺设→箱 梁桥以线条流畅、美观大方等特点,备受设计者青.梁钢筋绑扎→预应力筋安装→箱梁内模安装→混凝土 但由于结构设计复杂、施工难度大,因此向施工企业提浇筑→混凝土养护→预应力张拉、压浆及封错. 出了很高的要求. 2.2关键技术 1工程概况 2.2...
2015年4月上 施工技术 第44卷第7期 CONSTRUCTION TECHNOLOGY 29 D0I:10.7672/5j52015070029 现浇地下工程多孔箱形结构模板支架选型与应用 李文昌,徐洪华 (中交四航局一公司澳大隧道项目部,广东珠海519031) [摘要]澳大隧道主体结构工程具有工期紧、箱孔多、断面尺寸大且渐变等特点,针对这些特点,项目部在模板支架 选型上也采取了多元化.根据常用的多种地下工程箱形结构模板支架(满堂支架支撑木模、轻型单侧支架配承插 型盘扣式钢管支架支撑模板、台车模板)在本工程中的实践应用进行了归纳比较,并总结了各模板支架的优缺点及 其经济性、可操作性和工效性等. [关键词]地下工程;隧道工程;模板;支架;应用 「中图分类号1TU731.2 [文献标识码]A [文章编号]1002-8498(2015)07-0029-04 Selection and Application of the Cast-in-situ Porous Box-shaped Structure Supports for Underground Works Li Wenchang Xu Honghua (The First Engineering Company of CCCC Fourth Harbor Engineering Co. Lid.University of Macau Seabed Tunnel Project Management Zhuhai Guangdong 519031 China) Abstract:The main structural works of the university of Macau seabed tunnel project had taken a diversified approach in selection of the box-shaped supports which had a tight schedule too much box holes large size and gradient sections etc.This paper pared the practical applications of the variety of the mon box-shaped supports for the underground work in this project including full scaffold light single support bined with socket plate type steel pipe scaffold and trolley formwork and meanwhile summarized advantages and disadvantages of the various box-shaped supports economy efficiency and operability. Key words:underground;tunnels;formwork;supports;application 地下工程结构由于侧墙与围护结构之间设有一管形式,箱孔由右至左依次为:行车隧道孔行 外防水层,为满足结构防水要求,侧墙模板通常不 车隧道孔管线廊道人行隧道孔(两孔一管段无 允许采用对拉螺杆固定.无拉杆施工对墙体模板 此孔),宽度为31.4~34.4m 结构标准净高6.8m 提出了更高要求,施工中常采...
施工技术 2011年11月上 82 CONSTRUCTION TECHNOLOGY 第40卷第352期 玄武岩地层钻孔桩钻孔施工要点 刘荣武 (中国中铁四局集团建筑工程有限公司,安徽合肥230022) [摘要]新建铁路张家口一集宁线大湾村特大桥基础所处地层为玄武岩层,岩层厚薄不均,同一地层受风化、冲击 程度不同,强度差异较大,给钻孔桩施工带来较大隐患.主要介绍了玄武岩地质条件下钻孔柱钻孔施工的要点,对 这种特殊地质条件下的钻孔施工要点进行分析、整理,其成果能较好地指导施工. [关键词]铁路工程;桥梁工程;玄武岩;钻孔;施工技术 [中图分类号]TU753.3 [文献标识码]A[文章编号]1002-8498(2011)21-0082-03 Key Construction Points of Drilling Hole of Bored Pile in Basalt Stratum Liu Rongwu The Building Construction Co.Ltd.of CTCE Group Hefei Anhui 230022 China) Abstract:The foundation of Dawancun super-large bridge of the new railway of Zhangjiakou to Jining sit in basalt stratum.The stratum height is uneven and the strength difference of the same stratum is large because of different degree of weathering and impaction which bring large risk for construction of bored pile.The author mainly introduces the key construction points of drilling hole of bored pile under basalt stratum condition. Key words:railways;bridges;basalt;drilling hole;construction 1工程概况 用冲击钻施工;根据本工程岩层特点(弱风化玄武 张家口一集宁线大湾村特大桥为28×32m双 岩强度高,0=1000kPa)及施工经验,本桥选用6台 线桥,为跨山区冲沟而设,全长936.46m 位于半径功率75kW的磕头式冲击钻施工,钻头质量4.5~5t 5000m的圆曲线、缓和曲线和直线上.基础形式除 (钻头若<3 冲积硬质岩层效率低,将大大延长钻 张家口墩为明挖基础外,其余均为中125cm钻孔桩,孔时间). 共计223根(变更设计后为237根),最小桩长15m 本桥地势平坦,便道沿全桥修建;为节省临时 最大桩长34m;地质情况从上至下依次为粗圆砾和 用地和便于泥浆清运,两墩之间开挖一处泥浆池 粉质砂黏土强风化玄武岩弱风化玄武岩泥质砂 (10m×8m×2.5m) 挖掘机配合密封性能良好的自 岩(地质补勘后确认),柱桩嵌入弱风化玄武岩≥ 卸车装运泥浆;由于本桥地势较低,地下水位高(离地 2m 全部采用耐久性混凝土. 表1-4m) 每隔2~3墩开挖一处蓄水池汇集地下 本桥所经地区的玄武岩层为第四系喷出状玄 水,供钻孔用水;电力采用位于桥中部的500kVA变 武岩,岩层所覆盖区域薄厚不均,同一地层受风化、 压器接驳10kV...
施工技术 2012年1月下 50 CONSTRUCTION TECHNOLOGY 第41卷第357期 狭窄场地超深基坑综合支护技术 范龙尧,谢惠庆2,康清泉2,黎泽萍2,卢德强2 (1.成都建筑工程集团总公司,四川成都610031;2.成都市第四建筑工程公司,四川成都610031) [摘要]本着安全、经济的原则,某工程狭窄场地超深基坑支护在国内首次采用挖孔支护桩加预应力铺索、土钉墙 加喷锚支护、钢内支撑支护的复合型支护体系.结合工程特点,详细介绍了各种支护方式的施工工艺及施工要点. 工程实践表明,通过该复合型支护技术的应用,确保了工程质量和工期,并有效降低了工程造价,取得了较好的支 护效果. [关键词]地下工程;深基坑;支护;施工技术 [中图分类号]TU753 [文献标识码]A [文章编号]1002-8498(2012)02-0050-03 Integrated Supporting Technology for Some Ultra-deep Foundation Excavation in Narrow Site Fan Longyao' Xie Huiqing? Kang Qingquan? Li Zeping? Lu Deqiang' (1.Chengdu Construction Engineering Group Co.Chengdu Sichuan 610031 China; 2.Chengdu Fourth Construction Engineering Co.Chengdu Sichuan 610031 China) Abstract:Based on the principle of safe and economic the integrated supporting technology is adopted in a deep foundation excavation in narrow site including digging piles prestressed anchor cables soil nailing wall and anchor bolts as well as steel inner supporting.According to the project characteristics construction technology and attentions of every supporting mode are introduced.The construction practice shows that the construction period and quality are ensured the construction cost is saved and the effect of integrated foundation excavation support is good. Key words:underground;deep foundation excavation;supports;construction 1工程概况 基坑平面如图1所示. 本工程位于成都市红星路三段与东锦江街交 成都建校房屋开发公司 汇处,建筑面积94202m2.其中地下15231m2 地上 底框7层 78965m2.地下共计4层(第4层含局部夹层),基 地铁3号线站地铁2号线站施工区域 坑深度-25.3~-27.5m(主楼筏板底).地上39 施工区域 基坑边线 住宅高 17.52m 层...
2016年11月上 施工技术 第45卷第21期 CONSTRUCTION TECHNOLOGY 61 D0I:10.7672/5gj52016210061 澳门美高梅路酒店H形截面杆件单层网壳 设计建造关键技术 谢向阳,陈果,殷磊 (中国建筑工程(澳门)有限公司,澳门999078) [摘要]澳门美高梅路酒店中庭采光天幕,采用三峰两谷的不对称多曲面网壳构型,以焊接型钢作为基本杆 件.为满足天幕承载力要求及预设基座抗力条件、解决H形截面杆件的空间不规则连接形式所带来的问题,设计 阶段采用了释放双向水平约束的铰接支座、双层空心六棱柱节点等较为特殊的结构方式.为保证加工安装精度, 采用了编程建模、三维拟合预拼装等方法;施工阶段采取了轻型点式胎架等技术措施,以解决吊装场地、设备的条 件限制,在卸载阶段进行了3种方案的有限元模拟分析和比选. [关键词]钢结构;网壳;屋面:滑动支座:设计;施工 [中图分类号]TU758 [文献标识码]A [文章编号]1002-8498(2016)21-0061-05 Key Technology in Design and Construction of Single-layer Reticulated Shell of H-section Units in MGM Resorts Development LCC.Macau Xie Xiangyang Chen Guo Yin Lei China Construction Engineering(Macau)Co.Iad.Macau 999078 China) Abstract:The spectacle roof of the MGM Resorts Development LCC.Macau is a single-layer reticulated shell structure which is mostly consisted of welded-H-section members and has asymmetric special surface with three peaks and two valleys.Some special countermeasures such as supports with both release of the horizontal constraints and hexagonal prism joints are adopted in design phase to meet the load bearing requirements preset pedestal resistance conditions and the plex mode due to spatially irregular connecting of H-section members.In fabrication and erection stages three-dimensional modeling technology and pre-assembly method are used for the assurance of the rigorous accuracy requirement;in the erection stage a new-style supporting system of point-style scaffold is created to meet the limited both site and...
施工技术 2012年10月上 72 CONSTRUCTION TECHNOLOGY 第41卷第374期 澄江西路隧道盾构推进段施工难,点 剖析与技术建议 陈君平,陈林2,江强1,宋达 (1.江阴市人民政府重点工程建设办公室澄江西路隧道项目组,江苏江阴214400; 2.江阴市建设局,江苏江阴214400) [摘要]对澄江西路隧道工程泥水平衡盾构推进过程中所遇的施工难点与存在的技术难题进行了剖析.根据工程 实际情况,提出了盾构穿越内河浅覆土层,盾构下穿桩基,邻近建筑物保护,盾构进出洞加固等工程中一系列需要 注意的问题,并给出了解决问题的建议,为盾构施工的安全快速推进提供了技术上的保障. [关键词]隧道工程;盾构;泥水平衡盾构;浅覆土;拔桩;施工技术 [中图分类号]TU74;U455.43 [文献标识码]A [文章编号]1002-8498(2012)19-0072-04 Difficulties Analysis and Technological Advice for Shield Construction of West Chengjiang Road Tunnel Chen Junping Chen Lin㎡,Jiang Qiang Song Da (1.Project Group of West Chengjiang Road Key Construction Projects Office of the People's Government Jiangyin Jiangsu 214400 China;2.Jiangyin Construction Bureau Jiangyin Jiangsu 214400 China) Abstract:Difficulties in slurry balance shield construction of West Chengjiang Road Tunnel are analyzed. Key issues were raised for attention for construction processes including shield crossing shallow covering soil under the river shield crossing pile foundations adjacent building protection tunnel strengthening for shield entering and leaving.Suggestions were provided for these problems which can help guarantee fast and smooth progress in shield construction. Key words:tunnels;shields;slurry balance shield;shallow covering;pile pulling;construction 1工程概况 置工作井,由东侧工作井穿越闸桥河、锡澄运河并 澄江西路隧道工程地处江阴市老城区,位于黄 穿越通江北路至西侧工作井形成隧道北线,盾构机 田港大桥与五星路大桥之间,隧道西起通富路(通 头在西侧工作井调头,由西侧推往东侧工作井形成 渡北路以东),下穿锡澄运河、中国裳岛、穿越闸桥 隧道南线. 河、过君山路后至澄江路(君山路以东),主体长约 通过综合比选,采用大型圆形泥水平衡盾构法 1273m 其中南线隧道全长1269.2...
施工技术 2011年1月 70 CONSTRUCTION TECHNOLOGY 第40卷第1期 潮汕机场航站楼钢屋盖整体提升技术 曾令权,郭正兴,罗斌,赵雨,胡明坡 (东南大学土木工程学院,江苏南京210096) [摘要]潮汕机场焊接球节点钢网架屋盖采用地面拼装,分单元液压整体提升和高空补装的施工技术,该技术具有 提升设备简单、地面拼装高效、安全性能好等优点.从提升过程分析、提升预埋件设计、提升吊点设计、提升过程结 构承载力验算、同步提升控制措施等方面介绍了潮汕机场整体提升方案和据升设计,可有效安全地指导该机场钢 屋盖施工成型,并在此基础上探讨了大跨度钢结构整体提升施工需考虑的问题. [关键词]钢屋盖;整体提升;液压同步 【中图分类号]TU758[文献标识码]A[文章编号]1002-8498(2011)01-0070-03 Integral Lifting Technology of Steel Roof in Chaoshan Airport Terminal Zeng Lingquan Guo Zhengxing Luo Bin Zhao Yu Hu Mingpo College of Civil Engineering Southeast Unisersity Nanjing Jiangsu 210096 China) Abstract:In construction of the steel roof in Chaoshan Airport engineers adopt the construction technology of ground assembling integral lifting each unit with hydraulic equipment retrofitting at high altitude which has the merits of simple construction instrument assembling on the ground high efficiency and safety.The design of integral lifting program of Chaoshan Airport is introduced including analysis of lifting process design of embedded parts for lifting design of lifting shelf checking of structure capacity control measures of synchronizing lifting which can guide the construction of this project effectively and safely.And the problems involved in the integral lifting process of large-span steel structure are discussed. Key words:steel roof;integral lifting;hydraulic synchronization 1工程概况 潮汕机场位于广东省揭阳市,航站楼屋顶为空 间多曲面焊接球网架结构,正放四角锥形式,沿中轴 线方向长约315m 垂直于中轴线方向宽约280m 其 中在航站楼东南端人口处有约20m的室外悬挑屋 顶(见图1).在指廊和航站楼的主体连接处,设置 1道...
施工技术 2010年11月 86 CONSTRUCTION TECHNOLOGY 第39卷第11期 溪洛渡水电站深覆盖层土体中大型竖井开挖锚固技术 施召云,刘雪峰,武晓杰2 (1.二滩水电开发有限责任公司,四川成都610051;2.中国水利水电第六工程局有限公司,辽宁丹东118002) [摘要]土层错杆在我国深基坑支挡、边坡加固、滑坡整治、水池抗浮、挡墙错固和结构抗倾覆等工程中应用广泛. 自进式错杆是一种新型错杆,集钻孔、错杆安装、注浆、锚固为一体,主要用于断层破碎带岩体的支护.以溪洛渡水 电站左右岸出线竖井上段覆盖层段开挖施工为依托,对不同地质条件下的土体锚固技术进行论证及施工实践验 证,将岩石错固技术融人复杂地质情况下的土体加固施工,改变了传统的土体加固技术,在钻孔机具的选择、钻孔 技术研究以及相关加固技术的综合运用上进行了初步探索,取得了一定的技术成果. [关键词]溪洛渡水电站;深覆盖层;大型竖井;错周技术 [中图分类号]TV741;TV866 [文献标识码]A [文章编号]1002-8498(2010)11-0086-04 Anchor Technology of Large Shaft Excavation with Deep Overburden Soil in Xiluodu Hydropower Station Shi Zhaoyun' Liu Xuefeng' Wu Xiaojie2 (1.Ertan Hydropocer Development Company Lid.Chengdu Sichuan 610051 China; 2.China Sinohydro Engineering Bureau 6 Co.Lid.Dandong Liaoning 118002 China) Abstract:Soil anchor is widely used in deep foundation supporting and retaining slope reinforcement landslide remediation pools'anti-floating anchored retaining wall and structures'anti-overturning etc in our country.Self-boring anchor is a new-type anchor which has the functions of drilling installation grouting and anchoring simultaneously.It is mainly used to support the rock in fault fracture zone. According to the upper overburden layer excavation of left and right bank outlet shaft in Xiluodu hydropower station by proving and practicing the soils'anchor technology under different geological conditions rock anchor technology is integrated into soil reinforcement construction under plex geological conditions.This techno...
2012年11月上 施工技术 第41卷第376期 CONSTRUCTION TECHNOLOGY 103 波形沥青防水板在某住宅工程中的应用 肖磊1,原世伟2,何巍2,周励强3 (1.北京万达房地产开发有限公司,北京100022;2.北京城建九建设工程有限公司,北京100039; 3.新沃资本控股有限公司,北京100873) [摘要]波形沥青防水板作为下覆层在坡瓦屋面中应用,除具防水功能外,同时还能通风、除湿、隔热.结合波形沥 青防水板在某住宅项目中的实际应用,总结了其在施工过程中的工艺做法,以及施工中的重点和难点.结果表明, 波形沥青防水板能确保防水质量,缩短工期,并降低造价. [关键词]防水工程;屋面工程;坡瓦屋面;波形沥青防水板;施工技术 [中图分类号]TU761.11 [文献标识码]A [文章编号]1002-8498(2012)21-0103-02 Application of Corrugated Bitumen Sheets on a Residential Building Xiao Lei' Yuan Shiwei He Wei Zhou Liqiang' (1.Beijing Wanda Real Estate Development Co.Ltd.Beijing 100022 China; 2.No.9 Construction Engineering Co.Ltd.of BUCG Beijing 100039 China; 3.Sinvo Capital Holding Co. Ltd.Beijing 100873 China) Abstract:Corrugated bitumen sheets can be used on sloped roofs as covering layer under roof tiles.Apart from being waterproofing they also provide functions such as roof ventilation dehumidification and insulation to the roof.Combined with the application of corrugated bitumen sheets on a residential building the construction technologies and key points in construction process are summarized.The application results show that the corrugated bitumen sheets can ensure the waterproof quality reduce the construction cost and shorten the construction time. Key words:waterproofing;roofs;sloped tile roofs;corrugated bitumen sheets;construction 1工程概况 系统,大幅提高建筑品质. 本工程位于辽宁省大连市七贤中路,为大连市2.1安全性 区高端别墅住宅项目之一,建筑面积8100m2 共18 波形沥青防水板采用波形构造,将传统的平面 座独栋别墅,坡屋面设计,防水设计等级为一级. 卷材防水改为立体防水,集材料防水和构造防水于 坡屋面施工前,经对比和考察,经设计单位同意,决 一身的新型...
2016年5月下 施工技术 第45卷第10期 CONSTRUCTION TECHNOLOGY D0I:10.7672/8js2016100001 武汉绿地中心项目总承包模式下的双全计划管理 郑承红,任慧军,刘洋,李锐,李航 (中建三局第二建设工程有限责任公司,湖北武汉430074) [摘要]从中建三局武汉绿地中心项目总承包管理探索与实践出发,首先从计划管理的重要性及必要性展开,通过 阐述原有计划管理的弊端,引出在总承包管理中,计划管理是一个全员、全方面的管理.利用总承包项目管理实践 过程中的实例描述计划管理的手段,以证实其在总承包项目管理的作用,从而有效推进项目管理的实施. [关键词]高层建筑:项目管理;总承包;计划管理;全方面管理 [中图分类号]TU712.1 [文献标识码]A[文章编号]1002-8498(2016)10-0001-04 Both Whole Plan Management in General Contractor Mode in Wuhan Greenland Center Project Zheng Chenghong Ren Huijun Liu Yang Li Rui Li Hang The Second Construction Co.Lad.of China Construction Third Engineering Bureau Wuhan Hubei 430074 China) Abstract:Based on exploration and practice of general contract management in Wuhan Greenland Center project built by China Construction Third Engineering Bureau the paper firstly discussed the importance and necessity of plan management.Analyzing the drawbacks of the original plan management shows that in general contract management plan management is a whole staff and omnibearing management.This paper introduces the both whole plan management method and its function during the practice of general contract project management in Wuhan Greenland Central. Key words:tall buildings;project management;general contract;plan management; omnibearing management 随着国内超高层建筑越来越多、越来越高,项计划以及相关的工作计划,从而无法达到计划管理 目施工难度也越来越大,不可控、不可预见性的因 的目的.而在总承包计划管理中,计划要做到能主 素所占比例也越来越高,因此各参与方对总承包方 导工程整个建造约束相关方所需要开展的工作. 计划管理能力的依托也日趋明显. 2)计划管理力量薄弱计划由计划部负责编 作为总承包项目管理核心能力之一,计划管理将 制,专业分包负责计划实施,计划部进行计划的考 进度计划以及...
2016年5月下 施工技术 第45卷第10期 CONSTRUCTION TECHNOLOGY D0I:10.7672/8js2016100005 武汉绿地中心顶模系统公共资源管理实践 罗轩忠,郑承红,李俏,李锐,赵云 (中建三局第二建设工程有限责任公司,湖北武汉430074) [摘要]结合武汉绿地中心项目的总承包管理需要,总结了顶模系统公共资源管理的内容、现状以及管理方法.重 点对本工程顶模系统总平面及作业面管理、垂直运输管理、临水临电管理进行了分析. [关键词]高层建筑;顶模系统;公共资源管理;垂直运输 [中图分类号]TU712.1 [文献标识码]A [文章编号]1002-8498(2016)10-0005-03 Public Resource Management Practices of Jacking Formwork System in Wuhan Greenland Center Luo Xuanzhong Zheng Chenghong Li Qiao Li Rui Zhao Yun The Second Construction Co.Ltd.of China Construction Third Engineering Bureau Wuhan Hubei 430074 China) Abstract:Combining with the need of general contract management in Wuhan Greenland Center project the paper summarizes the content status and management method for the jacking formwork system public resource management.The authors introduces emphatically the total plan and the management of work surface of the jacking formwork system and management of vertical transportation temporary water and power. Key words:tall buildings;jacking formwork system;public resource management;vertical transportation 顶模系统作为近年来超高层结构施工的新型 近年来,一些知名超高层建筑在顶模系统管理 模架体系,相较于传统的爬模、提模系统有着显著上已经取得了丰厚的成果,但由于地区、结构形式 的速度、成本及安全优势,但由于它集各种公用资等多方面因素的差异,管理措施可复制性不强,绿 源于一身,是一个复杂的集成体系.如果管理不力 地中心项目在顶模前期管理中曾遇到以下易忽视 或协调不当,势必影响这些优势的正常发挥,甚至 的一些问题:①土建分包任意堆料,影响其他作业 成为制约工期、增大投入的累赘.本文结合武汉绿 及通行,平面利用效率低下;②专业分包交叉作业 地中心项目顶模系统公共资源管理实践,阐述施工 协调不到位,矛盾突出,安全隐患多;③塔式起重机 总承包项目公共资源管理的重要性,以期对同类项 和临水临电在同一时段集中使用,供不应求;④施 目起到一定的指导意义. 工电梯在上下班高峰期等待时间长,各路人马争抢 1绿地项目曾经历、易忽视的几个问题 现象严重,极易引发纠纷. 该项目顶模平台...
2014年9月上 施工技术 第43卷第17期 CONSTRUCTION TECHNOLOGY 21 D0I:10.7672/5j52014170021 武汉绿地中心超深超大基坑工程施工及安全控制分析 刘惠涛,吴贤国1,王震2 (1.华中科技大学土木工程与力学学院,湖北武汉430074; 2.中建三局第二建设工程有限责任公司.湖北武汉430074) [摘要]结合武汉绿地中心深基坑开挖工程实例,介绍了工程支护体系、开挖方案监测点的布置、开挖过程中监测 项目与所采用的监测预警值.根据工程实测结果,从支护结构内力、地下连续墙深层水平位移、地下水位及原有铁 路和长江大堤变形规律等方面,分析了基坑开挖本身的安全及对周边环境的影响.最后,探讨了保证基坑开挖安 全的工程措施. [关键词]深基坑;监测;环境影响;施工技术 [中图分类号]TU753 [文献标识码]A [文章编号]1002-8498(2014)17-0021-05 The Construction Safety Control Analysis of Super-deep and Super-large Foundation Excavation for Wuhan Greenland Center Project Liu Huitao' Wu Xianguo' Wang Zhen (1.School of Civil Engineering Mechanics Huazhong Unitersity of Science Technology Wuhan Hubei 430074 China; 2.The Second Construction Co.Ltd.of China Construction Third Engineering Bureau Wuhan Hubei 430074 China) Abstract:The engineering support system the arrangement of monitoring excavation scheme and the monitoring items with its warning value are introduced referring to the foundation excavation construction of Wuhan Greenland Center.Then the safety of the exeavation itself and influence on surrounding environment are analyzed in terms of the brace force deep diaphragm wall horizontal displacement underground water level and the original railway and the Yangtze River levee deformation law and so on. And the measures for safety of foundation excavation engineering are discussed at last. Key words:deep foundation excavation;monitoring;environmental effect;construction 1工程概况 1.2工程地质条件 1.1工程简介 根据勘察地质资料显示,项目所在地属...
施工技术 2015年2月下 26 CONSTRUCTION TECHNOLOGY 第44卷第4期 D0I:10.7672/5js2015040026 武汉绿地中心工程地下室底板高分子自粘胶膜 防水卷材预铺反粘施工技术 李家洪,徐汉涛,邓邦 (中建三局第二建设工程有限贵任公司,湖北武汉430073) [摘要]高分子自粘胶膜防水卷材的预铺反粘施工技术优点明显,在国内建筑领域的应用日趋广泛.结合武汉绿 地中心工程地下室底板防水施工实例,通过充分利用材料特点,科学合理地应用该项技术,在工程实践中取得了良 好的社会和经济效益. [关键词]高层建筑:地下室;底板:高分子自粘胶膜防水卷材;预铺反粘;施工技术 [中图分类号]TU761.116 [文献标识码]A [文章编号]1002-8498(2015)04-0026-02 Construction Technology of Polymers Self-adhesive Waterproofing Membrane with Pre-installed and Inverted Adhered Method in Wuhan Greenland Center Li Jiahong Xu Hantao Deng Bang The Second Construction Co.Ld.of China Construction Third Engineering Bureau Wuhan Hubei 430073 China) Abstract:Because of obvious advantages of pre-installed and inverted adhered method the polymers self- adhesive waterproofing membrane is widely used in the field of domestic architecture.Combining with the construction practice of Wuhan Greenland Center project basement waterproofing by making full use of the material characteristics and using the technology rationally and scientifically pre-installed and inverted adhered method of polymers self-adhesive waterproofing membrane has been successful applied in the engineering with good social and economic benefits. Key words:tall buildings;basement;floor;polymers self-adhesive waterproofing membrane;pre- installed and inverted adhered;construction 1工程概况 1)行走施工性高分子自粘胶膜防水卷材耐 武汉绿地中心工程是目前华中地区施工的最候表面层作为卷材保护层的设计,可让人直接行 高建筑项目,工程总建筑面积711982m2 主塔楼建走、施工. 筑高度636m. 2)耐穿刺性卷材的高分子片材不仅是胶粘 武汉绿地中心工程基坑离长江边仅200m 开挖 层的载体,...
施工技术 2010年7月 CONSTRUCTION TECHNOLOGY 第39卷第7期 武汉火车站大跨度枝状支撑空间曲 面钢结构卸载分析 王辉1,刘曙2,吕黄兵2,蒋官业2 (1.中建三局建设工程股份有限公司总承包公司,湖北武汉430064;2.中建钢构有限公司,广东深圳518040) [摘要]武汉火车站钢结构中央站房首次卸载区间(两个主拱支撑,主拱最大跨度116m 间距64.5m)网壳主体结 构安装完毕,通过下调螺旋式千斤顶的回程拆除临时支撑体系,主体结构将从设有临时支撑体系的施工受力状态 逐渐转化为设计受力状态.必须确定合理的卸载次序、卸载量,保持千斤顶的同步性才能保证网壳安全.考虑网 壳主体结构和临时支撑体系的相互作用及主体结构的稳定性,通过有限元模拟计算分析和施工实践,证明该卸载 方案是可行的. [关键词]武汉火车站:空间曲面;稳定性;卸藏 [中图分类号]TU758.15 [文献标识码]A[文章编号]1002-8498(2010)07-0004-03 Unloading Analysis of Large-span Dentritic Supporting Space Curved Surface Steel Structure in Wuhan Railway Station Wang Hui' Liu Shu2 LūHuangbing2 Jiang Guanye2 (1.General Contraction Company of CCTEB Wuhan Hubei 430064 China; 2.China Construction Steel Structure Co.Ltd.Shenzhen Guangdong 518040 China) Abstract:When the lattice shell structure in the first unloading area in steel structure center building of Wuhan Railway Station which is two main arch support with the maximum span of 116m and distance of 64.5m is finished to be installed the temporary support system is demolished by down adjusting the return of screw jack.So the main body structure will transfer forced state from construction to design. Rational unloading sequence and unloading value must be determined to keep the jack's synchronization to assure the lattice shell safety.By considering mutual action of the main body structure and temporary support system of the shell and stability of the main body finite element method simulation analysis is done.The analysis and construction pr...
2010年7月 施工技术 第39卷第7期 CONSTRUCTION TECHNOLOGY 13 武汉火车站中央站房大型胎架滑移技术 王宏,戴立先,刘家华,刘曙 (中建钢构有限公司,广末深圳518040) [摘要]武汉火车站钢结构采用大型桥建合一大跨度枝状支撑空间双曲面钢结构.根据结构外形特点,结合施工 现场条件,反复比较各种施工方案,最终确定了采用大型滑移胎架、高空原位安装法施工工艺,采用液压千斤顶机 构进行胎架滑移,计算机同步控制,成功将长41.1m 宽32.875m 高52m 单部重2740:的胎架进行滑移和用于结 构安装,取得了显著的社会效益和经济效益. [关键词】武汉火车站;胎架;滑移;液压千斤顶 [中图分类号]TU758.11 [文献标识码]A [文章编号]1002-8498(2010)07-0013-03 Movable Technology of Large Jig in Central Station Building of Wuhan Railway Station Wang Hong Dai Lixian Liu Jiahua Liu Shu China Construction Steel Structure Co.Lad.Shenzhen Guangdong 518040 China) Abstract:Wuhan Railway Station adopts long-span branchlike support space hyperboloid steel structure which tends bridge and building to be united.Sky-high in-situ installation method with large movable jig is determined to be used by paring repeatedly several construction schemes and basing on structure characteristics and construction in-situ conditions.The large movable jig with 41.1m length 32.875m width 52m height and 2 740 tons weight is moved by hydraulic jack and synchronously controlled by puter.The steel structure is installed successfully with this jig.Social and economic benefit is earned. Key words:Wuhan Railway Station;jig;movable;hydraulic jack 钢结构滑移施工按滑移对象的不同可分为胎架滑台千斤顶沿前进方向①轴对称布置,使移动同步均匀. 移法、结构主体滑移法以及结构主体、胎架整体滑移现场共布置4台拖拉千斤顶,设4个液压泵站,由1个 法.胎架滑移法是指在结构的拼装胎架下设置滑移装 中控台控制,使得发出的信号命令一致,实现同步. 置,每次拼装完一个单元后,滑移至下一位置组拼;结 拼装胎架(见图1)的移动由胎架底盘、滑道系统 构主体滑移法是指拼装胎架位置固定不动(一般位于 (走行机构、轨道、轨承梁、基础)加上千斤顶动力源来 建筑物端头),每次主体结构滑移拼装完毕后依次滑...